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 struct wxPyThreadState {
  65     unsigned long  tid;
  66     PyThreadState* tstate;
  67
  68     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  69         : tid(_tid), tstate(_tstate) {}
  70 };
  71
  72 #include <wx/dynarray.h>
  73 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  74 #include <wx/arrimpl.cpp>
  75 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  76
  77 wxPyThreadStateArray* wxPyTStates = NULL;
  78 wxMutex*              wxPyTMutex = NULL;
  79 #endif
  80
  81 #define DEFAULTENCODING_SIZE 64
  82 static char wxPyDefaultEncoding[DEFAULTENCODING_SIZE] = "ascii";
  83
  84 static PyObject* wxPython_dict = NULL;
  85 static PyObject* wxPyAssertionError = NULL;
  86 static PyObject* wxPyNoAppError = NULL;
  87
  88 PyObject* wxPyPtrTypeMap = NULL;
  89
  90
  91 #ifdef __WXMSW__             // If building for win32...
  92 //----------------------------------------------------------------------
  93 // This gets run when the DLL is loaded.  We just need to save a handle.
  94 //----------------------------------------------------------------------
  95
  96 BOOL WINAPI DllMain(
  97     HINSTANCE   hinstDLL,    // handle to DLL module
  98     DWORD       fdwReason,   // reason for calling function
  99     LPVOID      lpvReserved  // reserved
 100    )
 101 {
 102     // If wxPython is embedded in another wxWindows app then
 103     // the inatance has already been set.
 104     if (! wxGetInstance())
 105         wxSetInstance(hinstDLL);
 106     return true;
 107 }
 108 #endif
 109
 110 //----------------------------------------------------------------------
 111 // Classes for implementing the wxp main application shell.
 112 //----------------------------------------------------------------------
 113
 114 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
 115
 116
 117 wxPyApp::wxPyApp() {
 118     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 119     m_startupComplete = false;
 120 }
 121
 122
 123 wxPyApp::~wxPyApp() {
 124 }
 125
 126
 127 // This one isn't acutally called...  We fake it with _BootstrapApp
 128 bool wxPyApp::OnInit() {
 129     return false;
 130 }
 131
 132
 133 int  wxPyApp::MainLoop() {
 134     int retval = 0;
 135
 136     DeletePendingObjects();
 137     bool initialized = wxTopLevelWindows.GetCount() != 0;
 138     if (initialized) {
 139         if ( m_exitOnFrameDelete == Later ) {
 140             m_exitOnFrameDelete = Yes;
 141         }
 142
 143         retval = wxApp::MainLoop();
 144         OnExit();
 145     }
 146     return retval;
 147 }
 148
 149
 150 bool wxPyApp::OnInitGui() {
 151     bool rval=true;
 152     wxApp::OnInitGui();  // in this case always call the base class version
 153     bool blocked = wxPyBeginBlockThreads();
 154     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 155         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 156     wxPyEndBlockThreads(blocked);
 157     return rval;
 158 }
 159
 160
 161 int wxPyApp::OnExit() {
 162     int rval=0;
 163     bool blocked = wxPyBeginBlockThreads();
 164     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 165         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 166     wxPyEndBlockThreads(blocked);
 167     wxApp::OnExit();  // in this case always call the base class version
 168     return rval;
 169 }
 170
 171
 172 #ifdef __WXDEBUG__
 173 void wxPyApp::OnAssert(const wxChar *file,
 174                      int line,
 175                      const wxChar *cond,
 176                      const wxChar *msg) {
 177
 178     // if we're not fully initialized then just log the error
 179     if (! m_startupComplete) {
 180         wxString buf;
 181         buf.Alloc(4096);
 182         buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 183                    file, line, cond);
 184         if (msg != NULL) {
 185             buf += wxT(": ");
 186             buf += msg;
 187         }
 188         wxLogDebug(buf);
 189         return;
 190     }
 191
 192     // If the OnAssert is overloaded in the Python class then call it...
 193     bool found;
 194     bool blocked = wxPyBeginBlockThreads();
 195     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 196         PyObject* fso = wx2PyString(file);
 197         PyObject* cso = wx2PyString(file);
 198         PyObject* mso;
 199         if (msg != NULL)
 200             mso = wx2PyString(file);
 201         else {
 202             mso = Py_None; Py_INCREF(Py_None);
 203         }
 204         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 205         Py_DECREF(fso);
 206         Py_DECREF(cso);
 207         Py_DECREF(mso);
 208     }
 209     wxPyEndBlockThreads(blocked);
 210
 211     // ...otherwise do our own thing with it
 212     if (! found) {
 213         // ignore it?
 214         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 215             return;
 216
 217         // turn it into a Python exception?
 218         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 219             wxString buf;
 220             buf.Alloc(4096);
 221             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 222             if (msg != NULL) {
 223                 buf += wxT(": ");
 224                 buf += msg;
 225             }
 226
 227             // set the exception
 228             bool blocked = wxPyBeginBlockThreads();
 229             PyObject* s = wx2PyString(buf);
 230             PyErr_SetObject(wxPyAssertionError, s);
 231             Py_DECREF(s);
 232             wxPyEndBlockThreads(blocked);
 233
 234             // Now when control returns to whatever API wrapper was called from
 235             // Python it should detect that an exception is set and will return
 236             // NULL, signalling the exception to Python.
 237         }
 238
 239         // Send it to the normal log destination, but only if
 240         // not _DIALOG because it will call this too
 241         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 242             wxString buf;
 243             buf.Alloc(4096);
 244             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 245                        file, line, cond);
 246             if (msg != NULL) {
 247                 buf += wxT(": ");
 248                 buf += msg;
 249             }
 250             wxLogDebug(buf);
 251         }
 252
 253         // do the normal wx assert dialog?
 254         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 255             wxApp::OnAssert(file, line, cond, msg);
 256     }
 257 }
 258 #endif
 259
 260     // For catching Apple Events
 261 void wxPyApp::MacOpenFile(const wxString &fileName)
 262 {
 263     bool blocked = wxPyBeginBlockThreads();
 264     if (wxPyCBH_findCallback(m_myInst, "MacOpenFile")) {
 265         PyObject* s = wx2PyString(fileName);
 266         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 267         Py_DECREF(s);
 268     }
 269     wxPyEndBlockThreads(blocked);
 270 }
 271
 272 void wxPyApp::MacPrintFile(const wxString &fileName)
 273 {
 274     bool blocked = wxPyBeginBlockThreads();
 275     if (wxPyCBH_findCallback(m_myInst, "MacPrintFile")) {
 276         PyObject* s = wx2PyString(fileName);
 277         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 278         Py_DECREF(s);
 279     }
 280     wxPyEndBlockThreads(blocked);
 281 }
 282
 283 void wxPyApp::MacNewFile()
 284 {
 285     bool blocked = wxPyBeginBlockThreads();
 286     if (wxPyCBH_findCallback(m_myInst, "MacNewFile"))
 287         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 288     wxPyEndBlockThreads(blocked);
 289 }
 290
 291 void wxPyApp::MacReopenApp()
 292 {
 293     bool blocked = wxPyBeginBlockThreads();
 294     if (wxPyCBH_findCallback(m_myInst, "MacReopenApp"))
 295         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 296     wxPyEndBlockThreads(blocked);
 297 }
 298
 299
 300 /*static*/
 301 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 302 #ifdef __WXMAC__
 303     return s_macSupportPCMenuShortcuts;
 304 #else
 305     return 0;
 306 #endif
 307 }
 308
 309 /*static*/
 310 long wxPyApp::GetMacAboutMenuItemId() {
 311 #ifdef __WXMAC__
 312     return s_macAboutMenuItemId;
 313 #else
 314     return 0;
 315 #endif
 316 }
 317
 318 /*static*/
 319 long wxPyApp::GetMacPreferencesMenuItemId() {
 320 #ifdef __WXMAC__
 321     return s_macPreferencesMenuItemId;
 322 #else
 323     return 0;
 324 #endif
 325 }
 326
 327 /*static*/
 328 long wxPyApp::GetMacExitMenuItemId() {
 329 #ifdef __WXMAC__
 330     return s_macExitMenuItemId;
 331 #else
 332     return 0;
 333 #endif
 334 }
 335
 336 /*static*/
 337 wxString wxPyApp::GetMacHelpMenuTitleName() {
 338 #ifdef __WXMAC__
 339     return s_macHelpMenuTitleName;
 340 #else
 341     return wxEmptyString;
 342 #endif
 343 }
 344
 345 /*static*/
 346 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 347 #ifdef __WXMAC__
 348     s_macSupportPCMenuShortcuts = val;
 349 #endif
 350 }
 351
 352 /*static*/
 353 void wxPyApp::SetMacAboutMenuItemId(long val) {
 354 #ifdef __WXMAC__
 355     s_macAboutMenuItemId = val;
 356 #endif
 357 }
 358
 359 /*static*/
 360 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 361 #ifdef __WXMAC__
 362     s_macPreferencesMenuItemId = val;
 363 #endif
 364 }
 365
 366 /*static*/
 367 void wxPyApp::SetMacExitMenuItemId(long val) {
 368 #ifdef __WXMAC__
 369     s_macExitMenuItemId = val;
 370 #endif
 371 }
 372
 373 /*static*/
 374 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 375 #ifdef __WXMAC__
 376     s_macHelpMenuTitleName = val;
 377 #endif
 378 }
 379
 380
 381 // This finishes the initialization of wxWindows and then calls the OnInit
 382 // that should be present in the derived (Python) class.
 383 void wxPyApp::_BootstrapApp()
 384 {
 385     static      bool haveInitialized = false;
 386     bool        result, blocked;
 387     PyObject*   retval = NULL;
 388     PyObject*   pyint  = NULL;
 389
 390
 391     // Only initialize wxWidgets once
 392     if (! haveInitialized) {
 393
 394         // Get any command-line args passed to this program from the sys module
 395         int    argc = 0;
 396         char** argv = NULL;
 397         blocked = wxPyBeginBlockThreads();
 398         PyObject* sysargv = PySys_GetObject("argv");
 399         if (sysargv != NULL) {
 400             argc = PyList_Size(sysargv);
 401             argv = new char*[argc+1];
 402             int x;
 403             for(x=0; x<argc; x++) {
 404                 PyObject *pyArg = PyList_GetItem(sysargv, x);
 405                 argv[x] = PyString_AsString(pyArg);
 406             }
 407             argv[argc] = NULL;
 408         }
 409         wxPyEndBlockThreads(blocked);
 410
 411         // Initialize wxWidgets
 412         result = wxEntryStart(argc, argv);
 413         delete [] argv;
 414
 415         blocked = wxPyBeginBlockThreads();
 416         if (! result)  {
 417             PyErr_SetString(PyExc_SystemError,
 418                             "wxEntryStart failed, unable to initialize wxWidgets!"
 419 #ifdef __WXGTK__
 420                             "  (Is DISPLAY set properly?)"
 421 #endif
 422                 );
 423             goto error;
 424         }
 425
 426         // On wxGTK the locale will be changed to match the system settings,
 427         // but Python before 2.4 needs to have LC_NUMERIC set to "C" in order
 428         // for the floating point conversions and such to work right.
 429 #if defined(__WXGTK__) && PY_VERSION_HEX < 0x02040000
 430         setlocale(LC_NUMERIC, "C");
 431 #endif
 432
 433         // The stock objects were all NULL when they were loaded into
 434         // SWIG generated proxies, so re-init those now...
 435         wxPy_ReinitStockObjects(3);
 436
 437         wxPyEndBlockThreads(blocked);
 438         haveInitialized = true;
 439     }
 440
 441     // It's now ok to generate exceptions for assertion errors.
 442     wxPythonApp->SetStartupComplete(true);
 443
 444     // Call the Python wxApp's OnInit function
 445     blocked = wxPyBeginBlockThreads();
 446     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 447
 448         PyObject* method = m_myInst.GetLastFound();
 449         PyObject* argTuple = PyTuple_New(0);
 450         retval = PyEval_CallObject(method, argTuple);
 451         Py_DECREF(argTuple);
 452         Py_DECREF(method);
 453         if (retval == NULL)
 454             goto error;
 455
 456         pyint = PyNumber_Int(retval);
 457         if (! pyint) {
 458             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 459             goto error;
 460         }
 461         result = PyInt_AS_LONG(pyint);
 462     }
 463     else {
 464         // Is it okay if there is no OnInit?  Probably so...
 465         result = true;
 466     }
 467
 468     if (! result) {
 469         PyErr_SetString(PyExc_SystemExit, "OnInit returned false, exiting...");
 470     }
 471
 472  error:
 473     Py_XDECREF(retval);
 474     Py_XDECREF(pyint);
 475
 476     wxPyEndBlockThreads(blocked);
 477 };
 478
 479 //---------------------------------------------------------------------
 480 //----------------------------------------------------------------------
 481
 482
 483 #if 0
 484 static char* wxPyCopyCString(const wxChar* src)
 485 {
 486     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 487     size_t len = strlen(buff);
 488     char*  dest = new char[len+1];
 489     strcpy(dest, buff);
 490     return dest;
 491 }
 492
 493 #if wxUSE_UNICODE
 494 static char* wxPyCopyCString(const char* src)   // we need a char version too
 495 {
 496     size_t len = strlen(src);
 497     char*  dest = new char[len+1];
 498     strcpy(dest, src);
 499     return dest;
 500 }
 501 #endif
 502
 503 static wxChar* wxPyCopyWString(const char *src)
 504 {
 505     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 506     wxString str(src, *wxConvCurrent);
 507     return copystring(str);
 508 }
 509
 510 #if wxUSE_UNICODE
 511 static wxChar* wxPyCopyWString(const wxChar *src)
 512 {
 513     return copystring(src);
 514 }
 515 #endif
 516 #endif
 517
 518
 519 inline const char* dropwx(const char* name) {
 520     if (name[0] == 'w' && name[1] == 'x')
 521         return name+2;
 522     else
 523         return name;
 524 }
 525
 526 //----------------------------------------------------------------------
 527
 528 // This function is called when the wx._core_ module is imported to do some
 529 // initial setup.  (Before there is a wxApp object.)  The rest happens in
 530 // wxPyApp::_BootstrapApp
 531 void __wxPyPreStart(PyObject* moduleDict)
 532 {
 533
 534 #ifdef __WXMSW__
 535 //     wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF
 536 //                     | _CRTDBG_CHECK_ALWAYS_DF
 537 //                     | _CRTDBG_DELAY_FREE_MEM_DF
 538 //         );
 539 #endif
 540
 541 #ifdef WXP_WITH_THREAD
 542     PyEval_InitThreads();
 543     wxPyTStates = new wxPyThreadStateArray;
 544     wxPyTMutex = new wxMutex;
 545
 546     // Save the current (main) thread state in our array
 547     PyThreadState* tstate = wxPyBeginAllowThreads();
 548     wxPyEndAllowThreads(tstate);
 549 #endif
 550
 551     // Ensure that the build options in the DLL (or whatever) match this build
 552     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 553
 554     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
 555     wxPy_ReinitStockObjects(1);
 556
 557     wxInitAllImageHandlers();
 558 }
 559
 560
 561
 562 void __wxPyCleanup() {
 563     wxPyDoingCleanup = true;
 564     if (wxPyDoCleanup) {
 565         wxPyDoCleanup = false;
 566         wxEntryCleanup();
 567     }
 568 #ifdef WXP_WITH_THREAD
 569     delete wxPyTMutex;
 570     wxPyTMutex = NULL;
 571     wxPyTStates->Empty();
 572     delete wxPyTStates;
 573     wxPyTStates = NULL;
 574 #endif
 575 }
 576
 577
 578 // Save a reference to the dictionary of the wx._core module, and inject
 579 // a few more things into it.
 580 PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 581 {
 582
 583     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 584         return NULL;
 585
 586     if (!PyDict_Check(wxPython_dict)) {
 587         PyErr_SetString(PyExc_TypeError,
 588                         "_wxPySetDictionary must have dictionary object!");
 589         return NULL;
 590     }
 591
 592     if (! wxPyPtrTypeMap)
 593         wxPyPtrTypeMap = PyDict_New();
 594     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 595
 596     // Create an exception object to use for wxASSERTions
 597     wxPyAssertionError = PyErr_NewException("wx._core.PyAssertionError",
 598                                             PyExc_AssertionError, NULL);
 599     PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
 600
 601     // Create an exception object to use when the app object hasn't been created yet
 602     wxPyNoAppError = PyErr_NewException("wx._core.PyNoAppError",
 603                                         PyExc_RuntimeError, NULL);
 604     PyDict_SetItemString(wxPython_dict, "PyNoAppError", wxPyNoAppError);
 605
 606
 607
 608 #ifdef __WXMOTIF__
 609 #define wxPlatform "__WXMOTIF__"
 610 #define wxPlatName "wxMotif"
 611 #endif
 612 #ifdef __WXX11__
 613 #define wxPlatform "__WXX11__"
 614 #define wxPlatName "wxX11"
 615 #endif
 616 #ifdef __WXGTK__
 617 #define wxPlatform "__WXGTK__"
 618 #define wxPlatName "wxGTK"
 619 #endif
 620 #ifdef __WXMSW__
 621 #define wxPlatform "__WXMSW__"
 622 #define wxPlatName "wxMSW"
 623 #endif
 624 #ifdef __WXMAC__
 625 #define wxPlatform "__WXMAC__"
 626 #define wxPlatName "wxMac"
 627 #endif
 628
 629 #ifdef __WXDEBUG__
 630     int wxdebug = 1;
 631 #else
 632     int wxdebug = 0;
 633 #endif
 634
 635     // These should be deprecated in favor of the PlatformInfo tuple built below...
 636     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
 637     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 638     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 639
 640     // Make a tuple of strings that gives more info about the platform.
 641     PyObject* PlatInfo = PyList_New(0);
 642     PyObject* obj;
 643
 644 #define _AddInfoString(st) \
 645     obj = PyString_FromString(st); \
 646     PyList_Append(PlatInfo, obj); \
 647     Py_DECREF(obj)
 648
 649     _AddInfoString(wxPlatform);
 650     _AddInfoString(wxPlatName);
 651 #if wxUSE_UNICODE
 652     _AddInfoString("unicode");
 653 #else
 654     _AddInfoString("ansi");
 655 #endif
 656 #ifdef __WXGTK__
 657 #ifdef __WXGTK20__
 658     _AddInfoString("gtk2");
 659 #else
 660     _AddInfoString("gtk1");
 661 #endif
 662 #endif
 663 #ifdef __WXDEBUG__
 664     _AddInfoString("wx-assertions-on");
 665 #else
 666     _AddInfoString("wx-assertions-off");
 667 #endif
 668
 669 #undef _AddInfoString
 670
 671     PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo);
 672     Py_DECREF(PlatInfo);
 673     PyDict_SetItemString(wxPython_dict, "PlatformInfo", PlatInfoTuple);
 674
 675     RETURN_NONE();
 676 }
 677
 678
 679 //---------------------------------------------------------------------------
 680
 681 // Python's PyInstance_Check does not return True for instances of new-style
 682 // classes.  This should get close enough for both new and old classes but I
 683 // should re-evaluate the need for doing instance checks...
 684 bool wxPyInstance_Check(PyObject* obj) {
 685     return PyObject_HasAttrString(obj, "__class__") != 0;
 686 }
 687
 688
 689 // This one checks if the object is an instance of a SWIG proxy class (it has
 690 // a .this attribute)
 691 bool wxPySwigInstance_Check(PyObject* obj) {
 692     return PyObject_HasAttrString(obj, "this") != 0;
 693 }
 694
 695 //---------------------------------------------------------------------------
 696
 697 // The stock objects are no longer created when the wx._core_ module is
 698 // imported, but only after the app object has been created.  The
 699 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 700 // objects though various stages of evolution:
 701 //
 702 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 703 //           object will be created (otherwise SWIG will just use None.)
 704 //
 705 //   pass 2: After the module has been imported and the python proxys have
 706 //           been created, then set the __class__ to be _wxPyUnbornObject so
 707 //           it will catch any access to the object and will raise an exception.
 708 //
 709 //   pass 3: Finally, from BootstrapApp patch things up so the stock objects
 710 //           can be used.
 711
 712
 713 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 714 {
 715     wxPy_ReinitStockObjects(2);
 716     RETURN_NONE();
 717 }
 718
 719
 720 static void rsoPass2(const char* name)
 721 {
 722     static PyObject* unbornObjectClass = NULL;
 723     PyObject* obj;
 724
 725     if (unbornObjectClass == NULL) {
 726         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 727         Py_INCREF(unbornObjectClass);
 728     }
 729
 730     // Find the object instance
 731     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 732     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 733     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 734
 735     // Change its class
 736     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 737
 738 }
 739
 740 static void rsoPass3(const char* name, const char* classname, void* ptr)
 741 {
 742     PyObject* obj;
 743     PyObject* classobj;
 744     PyObject* ptrobj;
 745
 746     // Find the object instance
 747     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 748     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 749     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 750
 751     // Find the class object and put it back in the instance
 752     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 753     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 754     PyObject_SetAttrString(obj, "__class__",  classobj);
 755
 756     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 757     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 758     PyObject_SetAttrString(obj, "this", ptrobj);
 759     Py_DECREF(ptrobj);
 760 }
 761
 762
 763
 764 void wxPy_ReinitStockObjects(int pass)
 765 {
 766
 767     // If there is already an App object then wxPython is probably embedded in
 768     // a wx C++ application, so there is no need to do all this.
 769     static bool embedded = false;
 770     if ((pass == 1 || pass == 2) && wxTheApp) {
 771         embedded = true;
 772         return;
 773     }
 774     if (pass == 3 && embedded)
 775         return;
 776
 777
 778 #define REINITOBJ(name, classname) \
 779     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 780     else if (pass == 2) { rsoPass2(#name); } \
 781     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 782
 783
 784 #define REINITOBJ2(name, classname) \
 785     if (pass == 1) { } \
 786     else if (pass == 2) { rsoPass2(#name); } \
 787     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 788
 789
 790     REINITOBJ(wxNORMAL_FONT, wxFont);
 791     REINITOBJ(wxSMALL_FONT, wxFont);
 792     REINITOBJ(wxITALIC_FONT, wxFont);
 793     REINITOBJ(wxSWISS_FONT, wxFont);
 794
 795     REINITOBJ(wxRED_PEN, wxPen);
 796     REINITOBJ(wxCYAN_PEN, wxPen);
 797     REINITOBJ(wxGREEN_PEN, wxPen);
 798     REINITOBJ(wxBLACK_PEN, wxPen);
 799     REINITOBJ(wxWHITE_PEN, wxPen);
 800     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 801     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 802     REINITOBJ(wxGREY_PEN, wxPen);
 803     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 804     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 805
 806     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 807     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 808     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 809     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 810     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 811     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 812     REINITOBJ(wxRED_BRUSH, wxBrush);
 813     REINITOBJ(wxGREY_BRUSH, wxBrush);
 814     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 815     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 816
 817     REINITOBJ(wxBLACK, wxColour);
 818     REINITOBJ(wxWHITE, wxColour);
 819     REINITOBJ(wxRED, wxColour);
 820     REINITOBJ(wxBLUE, wxColour);
 821     REINITOBJ(wxGREEN, wxColour);
 822     REINITOBJ(wxCYAN, wxColour);
 823     REINITOBJ(wxLIGHT_GREY, wxColour);
 824
 825     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 826     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 827     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 828
 829     REINITOBJ2(wxNullBitmap, wxBitmap);
 830     REINITOBJ2(wxNullIcon, wxIcon);
 831     REINITOBJ2(wxNullCursor, wxCursor);
 832     REINITOBJ2(wxNullPen, wxPen);
 833     REINITOBJ2(wxNullBrush, wxBrush);
 834     REINITOBJ2(wxNullPalette, wxPalette);
 835     REINITOBJ2(wxNullFont, wxFont);
 836     REINITOBJ2(wxNullColour, wxColour);
 837
 838     REINITOBJ(wxTheFontList, wxFontList);
 839     REINITOBJ(wxThePenList, wxPenList);
 840     REINITOBJ(wxTheBrushList, wxBrushList);
 841     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 842
 843
 844     REINITOBJ2(wxDefaultValidator, wxValidator);
 845     REINITOBJ2(wxNullImage, wxImage);
 846     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 847
 848 #undef REINITOBJ
 849 #undef REINITOBJ2
 850 }
 851
 852 //---------------------------------------------------------------------------
 853
 854 // Check for existence of a wxApp, setting an exception if there isn't one.
 855 // This doesn't need to aquire the GIL because it should only be called from
 856 // an %exception before the lock is released.
 857
 858 bool wxPyCheckForApp() {
 859     if (wxTheApp != NULL)
 860         return true;
 861     else {
 862         PyErr_SetString(wxPyNoAppError, "The wx.App object must be created first!");
 863         return false;
 864     }
 865 }
 866
 867 //---------------------------------------------------------------------------
 868
 869
 870 void wxPyClientData_dtor(wxPyClientData* self) {
 871     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 872                                         // may have already garbage collected the object...
 873         bool blocked = wxPyBeginBlockThreads();
 874         Py_DECREF(self->m_obj);
 875         self->m_obj = NULL;
 876         wxPyEndBlockThreads(blocked);
 877     }
 878 }
 879
 880 void wxPyUserData_dtor(wxPyUserData* self) {
 881     if (! wxPyDoingCleanup) {
 882         bool blocked = wxPyBeginBlockThreads();
 883         Py_DECREF(self->m_obj);
 884         self->m_obj = NULL;
 885         wxPyEndBlockThreads(blocked);
 886     }
 887 }
 888
 889
 890 // This is called when an OOR controled object is being destroyed.  Although
 891 // the C++ object is going away there is no way to force the Python object
 892 // (and all references to it) to die too.  This causes problems (crashes) in
 893 // wxPython when a python shadow object attempts to call a C++ method using
 894 // the now bogus pointer... So to try and prevent this we'll do a little black
 895 // magic and change the class of the python instance to a class that will
 896 // raise an exception for any attempt to call methods with it.  See
 897 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 898 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 899
 900     static PyObject* deadObjectClass = NULL;
 901
 902     bool blocked = wxPyBeginBlockThreads();
 903     if (deadObjectClass == NULL) {
 904         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 905         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 906         // will lead to a deadlock when it tries to aquire the GIL again.
 907         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 908         Py_INCREF(deadObjectClass);
 909     }
 910
 911
 912     // Only if there is more than one reference to the object
 913     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
 914         // bool isInstance = wxPyInstance_Check(self->m_obj);
 915         // TODO same here
 916         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 917
 918         // Call __del__, if there is one.
 919         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 920         if (func) {
 921             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 922             Py_XDECREF(rv);
 923             Py_DECREF(func);
 924         }
 925         if (PyErr_Occurred())
 926             PyErr_Clear();      // just ignore it for now
 927
 928
 929         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 930         if (dict) {
 931             // Clear the instance's dictionary
 932             PyDict_Clear(dict);
 933
 934             // put the name of the old class into the instance, and then reset the
 935             // class to be the dead class.
 936             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 937             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 938             PyDict_SetItemString(dict, "_name", name);
 939             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 940             //Py_INCREF(deadObjectClass);
 941             Py_DECREF(klass);
 942             Py_DECREF(name);
 943         }
 944     }
 945
 946     // m_obj is DECREF'd in the base class dtor...
 947     wxPyEndBlockThreads(blocked);
 948 }
 949
 950
 951 //---------------------------------------------------------------------------
 952 // Stuff used by OOR to find the right wxPython class type to return and to
 953 // build it.
 954
 955
 956 // The pointer type map is used when the "pointer" type name generated by SWIG
 957 // is not the same as the shadow class name, for example wxPyTreeCtrl
 958 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 959 // so we'll just make it a Python dictionary in the wx module's namespace.
 960 // (See __wxSetDictionary)
 961 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 962     if (! wxPyPtrTypeMap)
 963         wxPyPtrTypeMap = PyDict_New();
 964     PyDict_SetItemString(wxPyPtrTypeMap,
 965                          (char*)commonName,
 966                          PyString_FromString((char*)ptrName));
 967 }
 968
 969
 970
 971
 972 PyObject*  wxPyMake_wxObject(wxObject* source, bool setThisOwn, bool checkEvtHandler) {
 973     PyObject* target = NULL;
 974     bool      isEvtHandler = false;
 975
 976     if (source) {
 977         // If it's derived from wxEvtHandler then there may
 978         // already be a pointer to a Python object that we can use
 979         // in the OOR data.
 980         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 981             isEvtHandler = true;
 982             wxEvtHandler* eh = (wxEvtHandler*)source;
 983             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 984             if (data) {
 985                 target = data->m_obj;
 986                 if (target)
 987                     Py_INCREF(target);
 988             }
 989         }
 990
 991         if (! target) {
 992             // Otherwise make it the old fashioned way by making a new shadow
 993             // object and putting this pointer in it.  Look up the class
 994             // heirarchy until we find a class name that is located in the
 995             // python module.
 996             const wxClassInfo* info   = source->GetClassInfo();
 997             wxString           name   = info->GetClassName();
 998             bool               exists = wxPyCheckSwigType(name);
 999             while (info && !exists) {
1000                 info = info->GetBaseClass1();
1001                 name = info->GetClassName();
1002                 exists = wxPyCheckSwigType(name);
1003             }
1004             if (info) {
1005                 target = wxPyConstructObject((void*)source, name, setThisOwn);
1006                 if (target && isEvtHandler)
1007                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
1008             } else {
1009                 wxString msg(wxT("wxPython class not found for "));
1010                 msg += source->GetClassInfo()->GetClassName();
1011                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
1012                 target = NULL;
1013             }
1014         }
1015     } else {  // source was NULL so return None.
1016         Py_INCREF(Py_None); target = Py_None;
1017     }
1018     return target;
1019 }
1020
1021
1022 PyObject*  wxPyMake_wxSizer(wxSizer* source, bool setThisOwn) {
1023     PyObject* target = NULL;
1024
1025     if (source && wxIsKindOf(source, wxSizer)) {
1026         // If it's derived from wxSizer then there may already be a pointer to
1027         // a Python object that we can use in the OOR data.
1028         wxSizer* sz = (wxSizer*)source;
1029         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
1030         if (data) {
1031             target = data->m_obj;
1032             if (target)
1033                 Py_INCREF(target);
1034         }
1035     }
1036     if (! target) {
1037         target = wxPyMake_wxObject(source, setThisOwn, false);
1038         if (target != Py_None)
1039             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
1040     }
1041     return target;
1042 }
1043
1044
1045 //---------------------------------------------------------------------------
1046
1047
1048 #ifdef WXP_WITH_THREAD
1049 inline
1050 unsigned long wxPyGetCurrentThreadId() {
1051     return wxThread::GetCurrentId();
1052 }
1053
1054 static wxPyThreadState gs_shutdownTState;
1055
1056 static
1057 wxPyThreadState* wxPyGetThreadState() {
1058     if (wxPyTMutex == NULL) // Python is shutting down...
1059         return &gs_shutdownTState;
1060
1061     unsigned long ctid = wxPyGetCurrentThreadId();
1062     wxPyThreadState* tstate = NULL;
1063
1064     wxPyTMutex->Lock();
1065     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1066         wxPyThreadState& info = wxPyTStates->Item(i);
1067         if (info.tid == ctid) {
1068             tstate = &info;
1069             break;
1070         }
1071     }
1072     wxPyTMutex->Unlock();
1073     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
1074     return tstate;
1075 }
1076
1077
1078 static
1079 void wxPySaveThreadState(PyThreadState* tstate) {
1080     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
1081         gs_shutdownTState.tstate = tstate;
1082         return;
1083     }
1084     unsigned long ctid = wxPyGetCurrentThreadId();
1085     wxPyTMutex->Lock();
1086     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1087         wxPyThreadState& info = wxPyTStates->Item(i);
1088         if (info.tid == ctid) {
1089 #if 0
1090             if (info.tstate != tstate)
1091                 wxLogMessage("*** tstate mismatch!???");
1092 #endif
1093             info.tstate = tstate;    // allow for transient tstates
1094             // Normally it will never change, but apparently COM callbacks
1095             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
1096             // tstate which will then be garbage the next time we try to use
1097             // it...
1098
1099             wxPyTMutex->Unlock();
1100             return;
1101         }
1102     }
1103     // not found, so add it...
1104     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
1105     wxPyTMutex->Unlock();
1106 }
1107
1108 #endif
1109
1110
1111
1112 // Calls from Python to wxWindows code are wrapped in calls to these
1113 // functions:
1114
1115 PyThreadState* wxPyBeginAllowThreads() {
1116 #ifdef WXP_WITH_THREAD
1117     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
1118     wxPySaveThreadState(saved);
1119     return saved;
1120 #else
1121     return NULL;
1122 #endif
1123 }
1124
1125 void wxPyEndAllowThreads(PyThreadState* saved) {
1126 #ifdef WXP_WITH_THREAD
1127     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
1128 #endif
1129 }
1130
1131
1132
1133 // Calls from wxWindows back to Python code, or even any PyObject
1134 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
1135
1136 bool wxPyBeginBlockThreads() {
1137 #ifdef WXP_WITH_THREAD
1138     // This works in for 2.3, maybe a good alternative to find the needed tstate?
1139     // PyThreadState *check = PyGILState_GetThisThreadState();
1140
1141     PyThreadState *current = _PyThreadState_Current;
1142
1143     // Only block if there wasn't already a tstate, or if the current one is
1144     // not the one we are wanting to change to.  This should prevent deadlock
1145     // if there are nested calls to wxPyBeginBlockThreads
1146     bool blocked = false;
1147     wxPyThreadState* tstate = wxPyGetThreadState();
1148     if (current != tstate->tstate) {
1149         PyEval_RestoreThread(tstate->tstate);
1150         blocked = true;
1151     }
1152     return blocked;
1153 #endif
1154 }
1155
1156
1157 void wxPyEndBlockThreads(bool blocked) {
1158 #ifdef WXP_WITH_THREAD
1159     // Only unblock if we blocked in the last call to wxPyBeginBlockThreads.
1160     // The value of blocked passed in needs to be the same as that returned
1161     // from wxPyBeginBlockThreads at the same nesting level.
1162     if ( blocked ) {
1163         PyEval_SaveThread();
1164     }
1165 #endif
1166 }
1167
1168
1169 //---------------------------------------------------------------------------
1170 // wxPyInputStream and wxPyCBInputStream methods
1171
1172
1173 void wxPyInputStream::close() {
1174     /* do nothing for now */
1175 }
1176
1177 void wxPyInputStream::flush() {
1178     /* do nothing for now */
1179 }
1180
1181 bool wxPyInputStream::eof() {
1182     if (m_wxis)
1183         return m_wxis->Eof();
1184     else
1185         return true;
1186 }
1187
1188 wxPyInputStream::~wxPyInputStream() {
1189     if (m_wxis)
1190         delete m_wxis;
1191 }
1192
1193
1194
1195
1196 PyObject* wxPyInputStream::read(int size) {
1197     PyObject* obj = NULL;
1198     wxMemoryBuffer buf;
1199     const int BUFSIZE = 1024;
1200
1201     // check if we have a real wxInputStream to work with
1202     if (!m_wxis) {
1203         bool blocked = wxPyBeginBlockThreads();
1204         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1205         wxPyEndBlockThreads(blocked);
1206         return NULL;
1207     }
1208
1209     if (size < 0) {
1210         // read while bytes are available on the stream
1211         while ( m_wxis->CanRead() ) {
1212             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1213             buf.UngetAppendBuf(m_wxis->LastRead());
1214         }
1215
1216     } else {  // Read only size number of characters
1217         m_wxis->Read(buf.GetWriteBuf(size), size);
1218         buf.UngetWriteBuf(m_wxis->LastRead());
1219     }
1220
1221     // error check
1222     bool blocked = wxPyBeginBlockThreads();
1223     wxStreamError err = m_wxis->GetLastError();
1224     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1225         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1226     }
1227     else {
1228         // We use only strings for the streams, not unicode
1229         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1230     }
1231     wxPyEndBlockThreads(blocked);
1232     return obj;
1233 }
1234
1235
1236 PyObject* wxPyInputStream::readline(int size) {
1237     PyObject* obj = NULL;
1238     wxMemoryBuffer buf;
1239     int i;
1240     char ch;
1241
1242     // check if we have a real wxInputStream to work with
1243     if (!m_wxis) {
1244         bool blocked = wxPyBeginBlockThreads();
1245         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1246         wxPyEndBlockThreads(blocked);
1247         return NULL;
1248     }
1249
1250     // read until \n or byte limit reached
1251     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1252         ch = m_wxis->GetC();
1253         buf.AppendByte(ch);
1254     }
1255
1256     // errorcheck
1257     bool blocked = wxPyBeginBlockThreads();
1258     wxStreamError err = m_wxis->GetLastError();
1259     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1260         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1261     }
1262     else {
1263         // We use only strings for the streams, not unicode
1264         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1265     }
1266     wxPyEndBlockThreads(blocked);
1267     return obj;
1268 }
1269
1270
1271 PyObject* wxPyInputStream::readlines(int sizehint) {
1272     PyObject* pylist;
1273
1274     // check if we have a real wxInputStream to work with
1275     if (!m_wxis) {
1276         bool blocked = wxPyBeginBlockThreads();
1277         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1278         wxPyEndBlockThreads(blocked);
1279         return NULL;
1280     }
1281
1282     // init list
1283     bool blocked = wxPyBeginBlockThreads();
1284     pylist = PyList_New(0);
1285     wxPyEndBlockThreads(blocked);
1286
1287     if (!pylist) {
1288         bool blocked = wxPyBeginBlockThreads();
1289         PyErr_NoMemory();
1290         wxPyEndBlockThreads(blocked);
1291         return NULL;
1292     }
1293
1294     // read sizehint bytes or until EOF
1295     int i;
1296     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1297         PyObject* s = this->readline();
1298         if (s == NULL) {
1299             bool blocked = wxPyBeginBlockThreads();
1300             Py_DECREF(pylist);
1301             wxPyEndBlockThreads(blocked);
1302             return NULL;
1303         }
1304         bool blocked = wxPyBeginBlockThreads();
1305         PyList_Append(pylist, s);
1306         i += PyString_Size(s);
1307         wxPyEndBlockThreads(blocked);
1308     }
1309
1310     // error check
1311     wxStreamError err = m_wxis->GetLastError();
1312     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1313         bool blocked = wxPyBeginBlockThreads();
1314         Py_DECREF(pylist);
1315         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1316         wxPyEndBlockThreads(blocked);
1317         return NULL;
1318     }
1319
1320     return pylist;
1321 }
1322
1323
1324 void wxPyInputStream::seek(int offset, int whence) {
1325     if (m_wxis)
1326         m_wxis->SeekI(offset, wxSeekMode(whence));
1327 }
1328
1329 int wxPyInputStream::tell(){
1330     if (m_wxis)
1331         return m_wxis->TellI();
1332     else return 0;
1333 }
1334
1335
1336
1337
1338 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1339     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1340 {}
1341
1342
1343 wxPyCBInputStream::~wxPyCBInputStream() {
1344     bool blocked=false;
1345     if (m_block) blocked = wxPyBeginBlockThreads();
1346     Py_XDECREF(m_read);
1347     Py_XDECREF(m_seek);
1348     Py_XDECREF(m_tell);
1349     if (m_block) wxPyEndBlockThreads(blocked);
1350 }
1351
1352
1353 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1354     bool blocked=false;
1355     if (block) blocked = wxPyBeginBlockThreads();
1356
1357     PyObject* read = getMethod(py, "read");
1358     PyObject* seek = getMethod(py, "seek");
1359     PyObject* tell = getMethod(py, "tell");
1360
1361     if (!read) {
1362         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1363         Py_XDECREF(read);
1364         Py_XDECREF(seek);
1365         Py_XDECREF(tell);
1366         if (block) wxPyEndBlockThreads(blocked);
1367         return NULL;
1368     }
1369
1370     if (block) wxPyEndBlockThreads(blocked);
1371     return new wxPyCBInputStream(read, seek, tell, block);
1372 }
1373
1374
1375 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1376     return wxPyCBInputStream::create(py, block);
1377 }
1378
1379 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1380     if (!PyObject_HasAttrString(py, name))
1381         return NULL;
1382     PyObject* o = PyObject_GetAttrString(py, name);
1383     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1384         Py_DECREF(o);
1385         return NULL;
1386     }
1387     return o;
1388 }
1389
1390
1391 wxFileOffset wxPyCBInputStream::GetLength() const {
1392     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1393     if (m_seek && m_tell) {
1394         wxFileOffset temp = self->OnSysTell();
1395         wxFileOffset ret = self->OnSysSeek(0, wxFromEnd);
1396         self->OnSysSeek(temp, wxFromStart);
1397         return ret;
1398     }
1399     else
1400         return wxInvalidOffset;
1401 }
1402
1403
1404 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1405     if (bufsize == 0)
1406         return 0;
1407
1408     bool blocked = wxPyBeginBlockThreads();
1409     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1410     PyObject* result = PyEval_CallObject(m_read, arglist);
1411     Py_DECREF(arglist);
1412
1413     size_t o = 0;
1414     if ((result != NULL) && PyString_Check(result)) {
1415         o = PyString_Size(result);
1416         if (o == 0)
1417             m_lasterror = wxSTREAM_EOF;
1418         if (o > bufsize)
1419             o = bufsize;
1420         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1421         Py_DECREF(result);
1422
1423     }
1424     else
1425         m_lasterror = wxSTREAM_READ_ERROR;
1426     wxPyEndBlockThreads(blocked);
1427     return o;
1428 }
1429
1430 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1431     m_lasterror = wxSTREAM_WRITE_ERROR;
1432     return 0;
1433 }
1434
1435
1436 wxFileOffset wxPyCBInputStream::OnSysSeek(wxFileOffset off, wxSeekMode mode) {
1437     bool blocked = wxPyBeginBlockThreads();
1438     PyObject* arglist = PyTuple_New(2);
1439
1440     if (sizeof(wxFileOffset) > sizeof(long))
1441         // wxFileOffset is a 64-bit value...
1442         PyTuple_SET_ITEM(arglist, 0, PyLong_FromLongLong(off));
1443     else
1444         PyTuple_SET_ITEM(arglist, 0, PyInt_FromLong(off));
1445
1446     PyTuple_SET_ITEM(arglist, 1, PyInt_FromLong(mode));
1447
1448
1449     PyObject* result = PyEval_CallObject(m_seek, arglist);
1450     Py_DECREF(arglist);
1451     Py_XDECREF(result);
1452     wxPyEndBlockThreads(blocked);
1453     return OnSysTell();
1454 }
1455
1456
1457 wxFileOffset wxPyCBInputStream::OnSysTell() const {
1458     bool blocked = wxPyBeginBlockThreads();
1459     PyObject* arglist = Py_BuildValue("()");
1460     PyObject* result = PyEval_CallObject(m_tell, arglist);
1461     Py_DECREF(arglist);
1462     wxFileOffset o = 0;
1463     if (result != NULL) {
1464         if (PyLong_Check(result))
1465             o = PyLong_AsLongLong(result);
1466         else
1467             o = PyInt_AsLong(result);
1468         Py_DECREF(result);
1469     };
1470     wxPyEndBlockThreads(blocked);
1471     return o;
1472 }
1473
1474 //----------------------------------------------------------------------
1475
1476 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1477
1478 wxPyCallback::wxPyCallback(PyObject* func) {
1479     m_func = func;
1480     Py_INCREF(m_func);
1481 }
1482
1483 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1484     m_func = other.m_func;
1485     Py_INCREF(m_func);
1486 }
1487
1488 wxPyCallback::~wxPyCallback() {
1489     bool blocked = wxPyBeginBlockThreads();
1490     Py_DECREF(m_func);
1491     wxPyEndBlockThreads(blocked);
1492 }
1493
1494
1495 #define wxPy_PRECALLINIT     "_preCallInit"
1496 #define wxPy_POSTCALLCLEANUP "_postCallCleanup"
1497
1498 // This function is used for all events destined for Python event handlers.
1499 void wxPyCallback::EventThunker(wxEvent& event) {
1500     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1501     PyObject*       func = cb->m_func;
1502     PyObject*       result;
1503     PyObject*       arg;
1504     PyObject*       tuple;
1505     bool            checkSkip = false;
1506
1507     bool blocked = wxPyBeginBlockThreads();
1508     wxString className = event.GetClassInfo()->GetClassName();
1509
1510     // If the event is one of these types then pass the original
1511     // event object instead of the one passed to us.
1512     if ( className == wxT("wxPyEvent") ) {
1513         arg =       ((wxPyEvent*)&event)->GetSelf();
1514         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1515     }
1516     else if ( className == wxT("wxPyCommandEvent") ) {
1517         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1518         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1519     }
1520     else {
1521         arg = wxPyConstructObject((void*)&event, className);
1522     }
1523
1524     if (!arg) {
1525         PyErr_Print();
1526     } else {
1527         // "intern" the pre/post method names to speed up the HasAttr
1528         static PyObject* s_preName  = NULL;
1529         static PyObject* s_postName = NULL;
1530         if (s_preName == NULL) {
1531             s_preName  = PyString_FromString(wxPy_PRECALLINIT);
1532             s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP);
1533         }
1534
1535         // Check if the event object needs some preinitialization
1536         if (PyObject_HasAttr(arg, s_preName)) {
1537             result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL);
1538             if ( result ) {
1539                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1540                 PyErr_Clear();       // Just in case...
1541             } else {
1542                 PyErr_Print();
1543             }
1544         }
1545
1546         // Call the event handler, passing the event object
1547         tuple = PyTuple_New(1);
1548         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1549         result = PyEval_CallObject(func, tuple);
1550         if ( result ) {
1551             Py_DECREF(result);   // result is ignored, but we still need to decref it
1552             PyErr_Clear();       // Just in case...
1553         } else {
1554             PyErr_Print();
1555         }
1556
1557         // Check if the event object needs some post cleanup
1558         if (PyObject_HasAttr(arg, s_postName)) {
1559             result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL);
1560             if ( result ) {
1561                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1562                 PyErr_Clear();       // Just in case...
1563             } else {
1564                 PyErr_Print();
1565             }
1566         }
1567
1568         if ( checkSkip ) {
1569             // if the event object was one of our special types and
1570             // it had been cloned, then we need to extract the Skipped
1571             // value from the original and set it in the clone.
1572             result = PyObject_CallMethod(arg, "GetSkipped", "");
1573             if ( result ) {
1574                 event.Skip(PyInt_AsLong(result));
1575                 Py_DECREF(result);
1576             } else {
1577                 PyErr_Print();
1578             }
1579         }
1580         Py_DECREF(tuple);
1581     }
1582     wxPyEndBlockThreads(blocked);
1583 }
1584
1585
1586 //----------------------------------------------------------------------
1587
1588 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1589       m_lastFound = NULL;
1590       m_self = other.m_self;
1591       m_class = other.m_class;
1592       if (m_self) {
1593           Py_INCREF(m_self);
1594           Py_INCREF(m_class);
1595       }
1596 }
1597
1598
1599 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1600     m_self = self;
1601     m_class = klass;
1602     m_incRef = incref;
1603     if (incref) {
1604         Py_INCREF(m_self);
1605         Py_INCREF(m_class);
1606     }
1607 }
1608
1609
1610 #if PYTHON_API_VERSION >= 1011
1611
1612 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1613 // in which the method was defined.  Starting with 2.2 it returns
1614 // "class that asked for the method" which seems totally bogus to me
1615 // but apprently it fixes some obscure problem waiting to happen in
1616 // Python.  Since the API was not documented Guido and the gang felt
1617 // safe in changing it.  Needless to say that totally screwed up the
1618 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1619 // code to find the class where the method is actually defined...
1620
1621 static
1622 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1623 {
1624     int i, n;
1625
1626     if (PyType_Check(klass)) {      // new style classes
1627         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1628         PyTypeObject* type = (PyTypeObject*)klass;
1629         PyObject *mro, *res, *base, *dict;
1630         /* Look in tp_dict of types in MRO */
1631         mro = type->tp_mro;
1632         assert(PyTuple_Check(mro));
1633         n = PyTuple_GET_SIZE(mro);
1634         for (i = 0; i < n; i++) {
1635             base = PyTuple_GET_ITEM(mro, i);
1636             if (PyClass_Check(base))
1637                 dict = ((PyClassObject *)base)->cl_dict;
1638             else {
1639                 assert(PyType_Check(base));
1640                 dict = ((PyTypeObject *)base)->tp_dict;
1641             }
1642             assert(dict && PyDict_Check(dict));
1643             res = PyDict_GetItem(dict, name);
1644             if (res != NULL)
1645                 return base;
1646         }
1647         return NULL;
1648     }
1649
1650     else if (PyClass_Check(klass)) { // old style classes
1651         // This code is borrowed/adapted from class_lookup in classobject.c
1652         PyClassObject* cp = (PyClassObject*)klass;
1653         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1654         if (value != NULL) {
1655             return (PyObject*)cp;
1656         }
1657         n = PyTuple_Size(cp->cl_bases);
1658         for (i = 0; i < n; i++) {
1659             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1660             PyObject *v = PyFindClassWithAttr(base, name);
1661             if (v != NULL)
1662                 return v;
1663         }
1664         return NULL;
1665     }
1666     return NULL;
1667 }
1668 #endif
1669
1670
1671 static
1672 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1673 {
1674     PyObject* mgc = PyMethod_GET_CLASS(method);
1675
1676 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1677     return mgc;
1678 #else                             // 2.2 and after, the hard way...
1679
1680     PyObject* nameo = PyString_FromString(name);
1681     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1682     Py_DECREF(nameo);
1683     return klass;
1684 #endif
1685 }
1686
1687
1688
1689 bool wxPyCallbackHelper::findCallback(const char* name) const {
1690     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1691     self->m_lastFound = NULL;
1692
1693     // If the object (m_self) has an attibute of the given name...
1694     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1695         PyObject *method, *klass;
1696         method = PyObject_GetAttrString(m_self, (char*)name);
1697
1698         // ...and if that attribute is a method, and if that method's class is
1699         // not from a base class...
1700         if (PyMethod_Check(method) &&
1701             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1702             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1703
1704             // ...then we'll save a pointer to the method so callCallback can call it.
1705             self->m_lastFound = method;
1706         }
1707         else {
1708             Py_DECREF(method);
1709         }
1710     }
1711     return m_lastFound != NULL;
1712 }
1713
1714
1715 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1716     PyObject*   result;
1717     int         retval = false;
1718
1719     result = callCallbackObj(argTuple);
1720     if (result) {                       // Assumes an integer return type...
1721         retval = PyInt_AsLong(result);
1722         Py_DECREF(result);
1723         PyErr_Clear();                  // forget about it if it's not...
1724     }
1725     return retval;
1726 }
1727
1728 // Invoke the Python callable object, returning the raw PyObject return
1729 // value.  Caller should DECREF the return value and also manage the GIL.
1730 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1731     PyObject* result;
1732
1733     // Save a copy of the pointer in case the callback generates another
1734     // callback.  In that case m_lastFound will have a different value when
1735     // it gets back here...
1736     PyObject* method = m_lastFound;
1737
1738     result = PyEval_CallObject(method, argTuple);
1739     Py_DECREF(argTuple);
1740     Py_DECREF(method);
1741     if (!result) {
1742         PyErr_Print();
1743     }
1744     return result;
1745 }
1746
1747
1748 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1749     cbh.setSelf(self, klass, incref);
1750 }
1751
1752 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1753     return cbh.findCallback(name);
1754 }
1755
1756 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1757     return cbh.callCallback(argTuple);
1758 }
1759
1760 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1761     return cbh.callCallbackObj(argTuple);
1762 }
1763
1764
1765 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1766     if (cbh->m_incRef) {
1767         bool blocked = wxPyBeginBlockThreads();
1768         Py_XDECREF(cbh->m_self);
1769         Py_XDECREF(cbh->m_class);
1770         wxPyEndBlockThreads(blocked);
1771     }
1772 }
1773
1774 //---------------------------------------------------------------------------
1775 //---------------------------------------------------------------------------
1776 // These event classes can be derived from in Python and passed through the event
1777 // system without losing anything.  They do this by keeping a reference to
1778 // themselves and some special case handling in wxPyCallback::EventThunker.
1779
1780
1781 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1782     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1783     //Py_INCREF(m_self);        //      circular loops...
1784     m_cloned = false;
1785 }
1786
1787 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1788     bool blocked = wxPyBeginBlockThreads();
1789     if (m_cloned)
1790         Py_DECREF(m_self);
1791     wxPyEndBlockThreads(blocked);
1792 }
1793
1794 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1795     bool blocked = wxPyBeginBlockThreads();
1796     if (m_cloned)
1797         Py_DECREF(m_self);
1798     m_self = self;
1799     if (clone) {
1800         Py_INCREF(m_self);
1801         m_cloned = true;
1802     }
1803     wxPyEndBlockThreads(blocked);
1804 }
1805
1806 PyObject* wxPyEvtSelfRef::GetSelf() const {
1807     Py_INCREF(m_self);
1808     return m_self;
1809 }
1810
1811
1812 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1813 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1814
1815
1816 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1817     : wxEvent(winid, commandType) {
1818 }
1819
1820
1821 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1822     : wxEvent(evt)
1823 {
1824     SetSelf(evt.m_self, true);
1825 }
1826
1827
1828 wxPyEvent::~wxPyEvent() {
1829 }
1830
1831
1832 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1833     : wxCommandEvent(commandType, id) {
1834 }
1835
1836
1837 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1838     : wxCommandEvent(evt)
1839 {
1840     SetSelf(evt.m_self, true);
1841 }
1842
1843
1844 wxPyCommandEvent::~wxPyCommandEvent() {
1845 }
1846
1847
1848
1849
1850
1851 //---------------------------------------------------------------------------
1852 //---------------------------------------------------------------------------
1853 // Convert a wxList to a Python List, only works for lists of wxObjects
1854
1855 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1856     wxList*     list = (wxList*)listbase;  // this is probably bad...
1857     PyObject*   pyList;
1858     PyObject*   pyObj;
1859     wxObject*   wxObj;
1860     wxNode*     node = list->GetFirst();
1861
1862     bool blocked = wxPyBeginBlockThreads();
1863     pyList = PyList_New(0);
1864     while (node) {
1865         wxObj = node->GetData();
1866         pyObj = wxPyMake_wxObject(wxObj,false);
1867         PyList_Append(pyList, pyObj);
1868         node = node->GetNext();
1869     }
1870     wxPyEndBlockThreads(blocked);
1871     return pyList;
1872 }
1873
1874 //----------------------------------------------------------------------
1875
1876 long wxPyGetWinHandle(wxWindow* win) {
1877
1878 #ifdef __WXMSW__
1879     return (long)win->GetHandle();
1880 #endif
1881
1882 #if defined(__WXGTK__) || defined(__WXX11)
1883     return (long)GetXWindow(win);
1884 #endif
1885
1886 #ifdef __WXMAC__
1887     //return (long)MAC_WXHWND(win->MacGetTopLevelWindowRef());
1888     return (long)win->GetHandle();
1889 #endif
1890
1891     return 0;
1892 }
1893
1894 //----------------------------------------------------------------------
1895 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1896 // included in every file over and over again...
1897
1898 wxString* wxString_in_helper(PyObject* source) {
1899     wxString* target = NULL;
1900
1901     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1902         PyErr_SetString(PyExc_TypeError, "String or Unicode type required");
1903         return NULL;
1904     }
1905 #if wxUSE_UNICODE
1906     PyObject* uni = source;
1907     if (PyString_Check(source)) {
1908         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
1909         if (PyErr_Occurred()) return NULL;
1910     }
1911     target = new wxString();
1912     size_t len = PyUnicode_GET_SIZE(uni);
1913     if (len) {
1914         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target->GetWriteBuf(len), len);
1915         target->UngetWriteBuf(len);
1916     }
1917
1918     if (PyString_Check(source))
1919         Py_DECREF(uni);
1920 #else
1921     // Convert to a string object if it isn't already, then to wxString
1922     PyObject* str = source;
1923     if (PyUnicode_Check(source)) {
1924         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
1925         if (PyErr_Occurred()) return NULL;
1926     }
1927     else if (!PyString_Check(source)) {
1928         str = PyObject_Str(source);
1929         if (PyErr_Occurred()) return NULL;
1930     }
1931     char* tmpPtr; int tmpSize;
1932     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1933     target = new wxString(tmpPtr, tmpSize);
1934
1935     if (!PyString_Check(source))
1936         Py_DECREF(str);
1937 #endif // wxUSE_UNICODE
1938
1939     return target;
1940 }
1941
1942
1943 // Similar to above except doesn't use "new" and doesn't set an exception
1944 wxString Py2wxString(PyObject* source)
1945 {
1946     wxString target;
1947
1948 #if wxUSE_UNICODE
1949     // Convert to a unicode object, if not already, then to a wxString
1950     PyObject* uni = source;
1951     if (!PyUnicode_Check(source)) {
1952         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
1953         if (PyErr_Occurred()) return wxEmptyString;  // TODO:  should we PyErr_Clear?
1954     }
1955     size_t len = PyUnicode_GET_SIZE(uni);
1956     if (len) {
1957         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target.GetWriteBuf(len), len);
1958         target.UngetWriteBuf();
1959     }
1960
1961     if (!PyUnicode_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 wxEmptyString;    // TODO:  should we PyErr_Clear?
1969     }
1970     else if (!PyString_Check(source)) {
1971         str = PyObject_Str(source);
1972         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
1973     }
1974     char* tmpPtr; int tmpSize;
1975     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1976     target = 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 // Make either a Python String or Unicode object, depending on build mode
1987 PyObject* wx2PyString(const wxString& src)
1988 {
1989     PyObject* str;
1990 #if wxUSE_UNICODE
1991     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1992 #else
1993     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1994 #endif
1995     return str;
1996 }
1997
1998
1999
2000 void wxSetDefaultPyEncoding(const char* encoding)
2001 {
2002     strncpy(wxPyDefaultEncoding, encoding, DEFAULTENCODING_SIZE);
2003 }
2004
2005 const char* wxGetDefaultPyEncoding()
2006 {
2007     return wxPyDefaultEncoding;
2008 }
2009
2010 //----------------------------------------------------------------------
2011
2012
2013 byte* byte_LIST_helper(PyObject* source) {
2014     if (!PyList_Check(source)) {
2015         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2016         return NULL;
2017     }
2018     int count = PyList_Size(source);
2019     byte* temp = new byte[count];
2020     if (! temp) {
2021         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2022         return NULL;
2023     }
2024     for (int x=0; x<count; x++) {
2025         PyObject* o = PyList_GetItem(source, x);
2026         if (! PyInt_Check(o)) {
2027             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2028             return NULL;
2029         }
2030         temp[x] = (byte)PyInt_AsLong(o);
2031     }
2032     return temp;
2033 }
2034
2035
2036 int* int_LIST_helper(PyObject* source) {
2037     if (!PyList_Check(source)) {
2038         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2039         return NULL;
2040     }
2041     int count = PyList_Size(source);
2042     int* temp = new int[count];
2043     if (! temp) {
2044         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2045         return NULL;
2046     }
2047     for (int x=0; x<count; x++) {
2048         PyObject* o = PyList_GetItem(source, x);
2049         if (! PyInt_Check(o)) {
2050             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2051             return NULL;
2052         }
2053         temp[x] = PyInt_AsLong(o);
2054     }
2055     return temp;
2056 }
2057
2058
2059 long* long_LIST_helper(PyObject* source) {
2060     if (!PyList_Check(source)) {
2061         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2062         return NULL;
2063     }
2064     int count = PyList_Size(source);
2065     long* temp = new long[count];
2066     if (! temp) {
2067         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2068         return NULL;
2069     }
2070     for (int x=0; x<count; x++) {
2071         PyObject* o = PyList_GetItem(source, x);
2072         if (! PyInt_Check(o)) {
2073             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2074             return NULL;
2075         }
2076         temp[x] = PyInt_AsLong(o);
2077     }
2078     return temp;
2079 }
2080
2081
2082 char** string_LIST_helper(PyObject* source) {
2083     if (!PyList_Check(source)) {
2084         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2085         return NULL;
2086     }
2087     int count = PyList_Size(source);
2088     char** temp = new char*[count];
2089     if (! temp) {
2090         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2091         return NULL;
2092     }
2093     for (int x=0; x<count; x++) {
2094         PyObject* o = PyList_GetItem(source, x);
2095         if (! PyString_Check(o)) {
2096             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2097             return NULL;
2098         }
2099         temp[x] = PyString_AsString(o);
2100     }
2101     return temp;
2102 }
2103
2104 //--------------------------------
2105 // Part of patch from Tim Hochberg
2106 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
2107     if (PyInt_Check(o1) && PyInt_Check(o2)) {
2108         point->x = PyInt_AS_LONG(o1);
2109         point->y = PyInt_AS_LONG(o2);
2110         return true;
2111     }
2112     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
2113         point->x = (int)PyFloat_AS_DOUBLE(o1);
2114         point->y = (int)PyFloat_AS_DOUBLE(o2);
2115         return true;
2116     }
2117     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
2118         // Disallow instances because they can cause havok
2119         return false;
2120     }
2121     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
2122         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
2123         point->x = PyInt_AsLong(o1);
2124         point->y = PyInt_AsLong(o2);
2125         return true;
2126     }
2127     return false;
2128 }
2129
2130
2131 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
2132     // Putting all of the declarations here allows
2133     // us to put the error handling all in one place.
2134     int x;
2135     wxPoint* temp;
2136     PyObject *o, *o1, *o2;
2137     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2138
2139     if (!PySequence_Check(source)) {
2140         goto error0;
2141     }
2142
2143     // The length of the sequence is returned in count.
2144     *count = PySequence_Length(source);
2145     if (*count < 0) {
2146         goto error0;
2147     }
2148
2149     temp = new wxPoint[*count];
2150     if (!temp) {
2151         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2152         return NULL;
2153     }
2154     for (x=0; x<*count; x++) {
2155         // Get an item: try fast way first.
2156         if (isFast) {
2157             o = PySequence_Fast_GET_ITEM(source, x);
2158         }
2159         else {
2160             o = PySequence_GetItem(source, x);
2161             if (o == NULL) {
2162                 goto error1;
2163             }
2164         }
2165
2166         // Convert o to wxPoint.
2167         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
2168             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
2169             o1 = PySequence_Fast_GET_ITEM(o, 0);
2170             o2 = PySequence_Fast_GET_ITEM(o, 1);
2171             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2172                 goto error2;
2173             }
2174         }
2175         else if (wxPySwigInstance_Check(o)) {
2176             wxPoint* pt;
2177             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
2178                 goto error2;
2179             }
2180             temp[x] = *pt;
2181         }
2182         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
2183             o1 = PySequence_GetItem(o, 0);
2184             o2 = PySequence_GetItem(o, 1);
2185             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2186                 goto error3;
2187             }
2188             Py_DECREF(o1);
2189             Py_DECREF(o2);
2190         }
2191         else {
2192             goto error2;
2193         }
2194         // Clean up.
2195         if (!isFast)
2196             Py_DECREF(o);
2197     }
2198     return temp;
2199
2200 error3:
2201     Py_DECREF(o1);
2202     Py_DECREF(o2);
2203 error2:
2204     if (!isFast)
2205         Py_DECREF(o);
2206 error1:
2207     delete [] temp;
2208 error0:
2209     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2210     return NULL;
2211 }
2212 // end of patch
2213 //------------------------------
2214
2215
2216 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2217     if (!PyList_Check(source)) {
2218         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2219         return NULL;
2220     }
2221     int count = PyList_Size(source);
2222     wxBitmap** temp = new wxBitmap*[count];
2223     if (! temp) {
2224         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2225         return NULL;
2226     }
2227     for (int x=0; x<count; x++) {
2228         PyObject* o = PyList_GetItem(source, x);
2229         if (wxPySwigInstance_Check(o)) {
2230             wxBitmap*    pt;
2231             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2232                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2233                 return NULL;
2234             }
2235             temp[x] = pt;
2236         }
2237         else {
2238             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2239             return NULL;
2240         }
2241     }
2242     return temp;
2243 }
2244
2245
2246
2247 wxString* wxString_LIST_helper(PyObject* source) {
2248     if (!PyList_Check(source)) {
2249         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2250         return NULL;
2251     }
2252     int count = PyList_Size(source);
2253     wxString* temp = new wxString[count];
2254     if (! temp) {
2255         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2256         return NULL;
2257     }
2258     for (int x=0; x<count; x++) {
2259         PyObject* o = PyList_GetItem(source, x);
2260 #if PYTHON_API_VERSION >= 1009
2261         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2262             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2263             return NULL;
2264         }
2265 #else
2266         if (! PyString_Check(o)) {
2267             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2268             return NULL;
2269         }
2270 #endif
2271
2272         wxString* pStr = wxString_in_helper(o);
2273         temp[x] = *pStr;
2274         delete pStr;
2275     }
2276     return temp;
2277 }
2278
2279
2280 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2281     if (!PyList_Check(source)) {
2282         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2283         return NULL;
2284     }
2285     int count                = PyList_Size(source);
2286     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2287     if (! temp) {
2288         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2289         return NULL;
2290     }
2291     for (int x=0; x<count; x++) {
2292         PyObject* o = PyList_GetItem(source, x);
2293         if (wxPySwigInstance_Check(o)) {
2294             wxAcceleratorEntry* ae;
2295             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2296                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2297                 return NULL;
2298             }
2299             temp[x] = *ae;
2300         }
2301         else if (PyTuple_Check(o)) {
2302             PyObject* o1 = PyTuple_GetItem(o, 0);
2303             PyObject* o2 = PyTuple_GetItem(o, 1);
2304             PyObject* o3 = PyTuple_GetItem(o, 2);
2305             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2306         }
2307         else {
2308             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2309             return NULL;
2310         }
2311     }
2312     return temp;
2313 }
2314
2315
2316 wxPen** wxPen_LIST_helper(PyObject* source) {
2317     if (!PyList_Check(source)) {
2318         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2319         return NULL;
2320     }
2321     int count = PyList_Size(source);
2322     wxPen** temp = new wxPen*[count];
2323     if (!temp) {
2324         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2325         return NULL;
2326     }
2327     for (int x=0; x<count; x++) {
2328         PyObject* o = PyList_GetItem(source, x);
2329         if (wxPySwigInstance_Check(o)) {
2330             wxPen*  pt;
2331             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2332                 delete temp;
2333                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2334                 return NULL;
2335             }
2336             temp[x] = pt;
2337         }
2338         else {
2339             delete temp;
2340             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2341             return NULL;
2342         }
2343     }
2344     return temp;
2345 }
2346
2347
2348 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2349     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2350     PyObject *o1, *o2;
2351
2352     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2353         return false;
2354
2355     if (isFast) {
2356         o1 = PySequence_Fast_GET_ITEM(source, 0);
2357         o2 = PySequence_Fast_GET_ITEM(source, 1);
2358     }
2359     else {
2360         o1 = PySequence_GetItem(source, 0);
2361         o2 = PySequence_GetItem(source, 1);
2362     }
2363
2364     *i1 = PyInt_AsLong(o1);
2365     *i2 = PyInt_AsLong(o2);
2366
2367     if (! isFast) {
2368         Py_DECREF(o1);
2369         Py_DECREF(o2);
2370     }
2371     return true;
2372 }
2373
2374
2375 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2376     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2377     PyObject *o1, *o2, *o3, *o4;
2378
2379     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2380         return false;
2381
2382     if (isFast) {
2383         o1 = PySequence_Fast_GET_ITEM(source, 0);
2384         o2 = PySequence_Fast_GET_ITEM(source, 1);
2385         o3 = PySequence_Fast_GET_ITEM(source, 2);
2386         o4 = PySequence_Fast_GET_ITEM(source, 3);
2387     }
2388     else {
2389         o1 = PySequence_GetItem(source, 0);
2390         o2 = PySequence_GetItem(source, 1);
2391         o3 = PySequence_GetItem(source, 2);
2392         o4 = PySequence_GetItem(source, 3);
2393     }
2394
2395     *i1 = PyInt_AsLong(o1);
2396     *i2 = PyInt_AsLong(o2);
2397     *i3 = PyInt_AsLong(o3);
2398     *i4 = PyInt_AsLong(o4);
2399
2400     if (! isFast) {
2401         Py_DECREF(o1);
2402         Py_DECREF(o2);
2403         Py_DECREF(o3);
2404         Py_DECREF(o4);
2405     }
2406     return true;
2407 }
2408
2409
2410 //----------------------------------------------------------------------
2411
2412 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2413 {
2414     void* ptr;
2415
2416     if (wxPySwigInstance_Check(source) &&
2417         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2418         return true;
2419
2420     PyErr_Clear();
2421     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2422         return true;
2423
2424     return false;
2425 }
2426
2427 bool wxSize_helper(PyObject* source, wxSize** obj)
2428 {
2429     if (source == Py_None) {
2430         **obj = wxSize(-1,-1);
2431         return true;
2432     }
2433     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2434 }
2435
2436
2437 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2438 {
2439     if (source == Py_None) {
2440         **obj = wxPoint(-1,-1);
2441         return true;
2442     }
2443     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2444 }
2445
2446
2447
2448 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2449
2450     if (source == Py_None) {
2451         **obj = wxRealPoint(-1,-1);
2452         return true;
2453     }
2454
2455     // If source is an object instance then it may already be the right type
2456     if (wxPySwigInstance_Check(source)) {
2457         wxRealPoint* ptr;
2458         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2459             goto error;
2460         *obj = ptr;
2461         return true;
2462     }
2463     // otherwise a 2-tuple of floats is expected
2464     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2465         PyObject* o1 = PySequence_GetItem(source, 0);
2466         PyObject* o2 = PySequence_GetItem(source, 1);
2467         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2468             Py_DECREF(o1);
2469             Py_DECREF(o2);
2470             goto error;
2471         }
2472         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2473         Py_DECREF(o1);
2474         Py_DECREF(o2);
2475         return true;
2476     }
2477
2478  error:
2479     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2480     return false;
2481 }
2482
2483
2484
2485 bool wxRect_helper(PyObject* source, wxRect** obj) {
2486
2487     if (source == Py_None) {
2488         **obj = wxRect(-1,-1,-1,-1);
2489         return true;
2490     }
2491
2492     // If source is an object instance then it may already be the right type
2493     if (wxPySwigInstance_Check(source)) {
2494         wxRect* ptr;
2495         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2496             goto error;
2497         *obj = ptr;
2498         return true;
2499     }
2500     // otherwise a 4-tuple of integers is expected
2501     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2502         PyObject* o1 = PySequence_GetItem(source, 0);
2503         PyObject* o2 = PySequence_GetItem(source, 1);
2504         PyObject* o3 = PySequence_GetItem(source, 2);
2505         PyObject* o4 = PySequence_GetItem(source, 3);
2506         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2507             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2508             Py_DECREF(o1);
2509             Py_DECREF(o2);
2510             Py_DECREF(o3);
2511             Py_DECREF(o4);
2512             goto error;
2513         }
2514         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2515                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2516         Py_DECREF(o1);
2517         Py_DECREF(o2);
2518         Py_DECREF(o3);
2519         Py_DECREF(o4);
2520         return true;
2521     }
2522
2523  error:
2524     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2525     return false;
2526 }
2527
2528
2529
2530 bool wxColour_helper(PyObject* source, wxColour** obj) {
2531
2532     if (source == Py_None) {
2533         **obj = wxNullColour;
2534         return true;
2535     }
2536
2537     // If source is an object instance then it may already be the right type
2538     if (wxPySwigInstance_Check(source)) {
2539         wxColour* ptr;
2540         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2541             goto error;
2542         *obj = ptr;
2543         return true;
2544     }
2545     // otherwise check for a string
2546     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2547         wxString spec = Py2wxString(source);
2548         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2549             long red, green, blue;
2550             red = green = blue = 0;
2551             spec.Mid(1,2).ToLong(&red,   16);
2552             spec.Mid(3,2).ToLong(&green, 16);
2553             spec.Mid(5,2).ToLong(&blue,  16);
2554
2555             **obj = wxColour(red, green, blue);
2556             return true;
2557         }
2558         else {                                       // it's a colour name
2559             **obj = wxColour(spec);
2560             return true;
2561         }
2562     }
2563     // last chance: 3-tuple of integers is expected
2564     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2565         PyObject* o1 = PySequence_GetItem(source, 0);
2566         PyObject* o2 = PySequence_GetItem(source, 1);
2567         PyObject* o3 = PySequence_GetItem(source, 2);
2568         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2569             Py_DECREF(o1);
2570             Py_DECREF(o2);
2571             Py_DECREF(o3);
2572             goto error;
2573         }
2574         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2575         Py_DECREF(o1);
2576         Py_DECREF(o2);
2577         Py_DECREF(o3);
2578         return true;
2579     }
2580
2581  error:
2582     PyErr_SetString(PyExc_TypeError,
2583                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2584     return false;
2585 }
2586
2587
2588 bool wxColour_typecheck(PyObject* source) {
2589
2590     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2591         return true;
2592
2593     if (PyString_Check(source) || PyUnicode_Check(source))
2594         return true;
2595
2596     return false;
2597 }
2598
2599
2600
2601 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2602
2603     if (source == Py_None) {
2604         **obj = wxPoint2D(-1,-1);
2605         return true;
2606     }
2607
2608     // If source is an object instance then it may already be the right type
2609     if (wxPySwigInstance_Check(source)) {
2610         wxPoint2D* ptr;
2611         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2612             goto error;
2613         *obj = ptr;
2614         return true;
2615     }
2616     // otherwise a length-2 sequence of floats is expected
2617     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2618         PyObject* o1 = PySequence_GetItem(source, 0);
2619         PyObject* o2 = PySequence_GetItem(source, 1);
2620         // This should really check for floats, not numbers -- but that would break code.
2621         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2622             Py_DECREF(o1);
2623             Py_DECREF(o2);
2624             goto error;
2625         }
2626         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2627         Py_DECREF(o1);
2628         Py_DECREF(o2);
2629         return true;
2630     }
2631  error:
2632     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2633     return false;
2634 }
2635
2636
2637 //----------------------------------------------------------------------
2638
2639 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2640
2641     PyObject* list = PyList_New(0);
2642     for (size_t i=0; i < arr.GetCount(); i++) {
2643 #if wxUSE_UNICODE
2644         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2645 #else
2646         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2647 #endif
2648         PyList_Append(list, str);
2649         Py_DECREF(str);
2650     }
2651     return list;
2652 }
2653
2654
2655 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2656
2657     PyObject* list = PyList_New(0);
2658     for (size_t i=0; i < arr.GetCount(); i++) {
2659         PyObject* number = PyInt_FromLong(arr[i]);
2660         PyList_Append(list, number);
2661         Py_DECREF(number);
2662     }
2663     return list;
2664 }
2665
2666
2667 //----------------------------------------------------------------------
2668 //----------------------------------------------------------------------
2669
2670
2671
2672