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 extern "C"
 101 BOOL WINAPI DllMain(
 102     HINSTANCE   hinstDLL,    // handle to DLL module
 103     DWORD       fdwReason,   // reason for calling function
 104     LPVOID      lpvReserved  // reserved
 105    )
 106 {
 107     // If wxPython is embedded in another wxWidgets app then
 108     // the instance has already been set.
 109     if (! wxGetInstance())
 110         wxSetInstance(hinstDLL);
 111     return true;
 112 }
 113 #endif
 114
 115 //----------------------------------------------------------------------
 116 // Classes for implementing the wxp main application shell.
 117 //----------------------------------------------------------------------
 118
 119 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
 120
 121
 122 wxPyApp::wxPyApp() {
 123     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 124     m_startupComplete = false;
 125 }
 126
 127
 128 wxPyApp::~wxPyApp() {
 129     wxPythonApp = NULL;
 130     wxApp::SetInstance(NULL);
 131 }
 132
 133
 134 // This one isn't acutally called...  We fake it with _BootstrapApp
 135 bool wxPyApp::OnInit() {
 136     return false;
 137 }
 138
 139
 140 int  wxPyApp::MainLoop() {
 141     int retval = 0;
 142
 143     DeletePendingObjects();
 144     bool initialized = wxTopLevelWindows.GetCount() != 0;
 145     if (initialized) {
 146         if ( m_exitOnFrameDelete == Later ) {
 147             m_exitOnFrameDelete = Yes;
 148         }
 149
 150         retval = wxApp::MainLoop();
 151         OnExit();
 152     }
 153     return retval;
 154 }
 155
 156
 157 bool wxPyApp::OnInitGui() {
 158     bool rval=true;
 159     wxApp::OnInitGui();  // in this case always call the base class version
 160     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 161     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 162         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 163     wxPyEndBlockThreads(blocked);
 164     return rval;
 165 }
 166
 167
 168 int wxPyApp::OnExit() {
 169     int rval=0;
 170     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 171     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 172         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 173     wxPyEndBlockThreads(blocked);
 174     wxApp::OnExit();  // in this case always call the base class version
 175     return rval;
 176 }
 177
 178
 179 #ifdef __WXDEBUG__
 180 void wxPyApp::OnAssert(const wxChar *file,
 181                      int line,
 182                      const wxChar *cond,
 183                      const wxChar *msg) {
 184
 185     // if we're not fully initialized then just log the error
 186     if (! m_startupComplete) {
 187         wxString buf;
 188         buf.Alloc(4096);
 189         buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 190                    file, line, cond);
 191         if (msg != NULL) {
 192             buf += wxT(": ");
 193             buf += msg;
 194         }
 195         wxLogDebug(buf);
 196         return;
 197     }
 198
 199     // If the OnAssert is overloaded in the Python class then call it...
 200     bool found;
 201     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 202     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 203         PyObject* fso = wx2PyString(file);
 204         PyObject* cso = wx2PyString(file);
 205         PyObject* mso;
 206         if (msg != NULL)
 207             mso = wx2PyString(file);
 208         else {
 209             mso = Py_None; Py_INCREF(Py_None);
 210         }
 211         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 212         Py_DECREF(fso);
 213         Py_DECREF(cso);
 214         Py_DECREF(mso);
 215     }
 216     wxPyEndBlockThreads(blocked);
 217
 218     // ...otherwise do our own thing with it
 219     if (! found) {
 220         // ignore it?
 221         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 222             return;
 223
 224         // turn it into a Python exception?
 225         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 226             wxString buf;
 227             buf.Alloc(4096);
 228             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 229             if (msg != NULL) {
 230                 buf += wxT(": ");
 231                 buf += msg;
 232             }
 233
 234             // set the exception
 235             wxPyBlock_t blocked = wxPyBeginBlockThreads();
 236             PyObject* s = wx2PyString(buf);
 237             PyErr_SetObject(wxPyAssertionError, s);
 238             Py_DECREF(s);
 239             wxPyEndBlockThreads(blocked);
 240
 241             // Now when control returns to whatever API wrapper was called from
 242             // Python it should detect that an exception is set and will return
 243             // NULL, signalling the exception to Python.
 244         }
 245
 246         // Send it to the normal log destination, but only if
 247         // not _DIALOG because it will call this too
 248         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 249             wxString buf;
 250             buf.Alloc(4096);
 251             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 252                        file, line, cond);
 253             if (msg != NULL) {
 254                 buf += wxT(": ");
 255                 buf += msg;
 256             }
 257             wxLogDebug(buf);
 258         }
 259
 260         // do the normal wx assert dialog?
 261         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 262             wxApp::OnAssert(file, line, cond, msg);
 263     }
 264 }
 265 #endif
 266
 267     // For catching Apple Events
 268 void wxPyApp::MacOpenFile(const wxString &fileName)
 269 {
 270     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 271     if (wxPyCBH_findCallback(m_myInst, "MacOpenFile")) {
 272         PyObject* s = wx2PyString(fileName);
 273         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 274         Py_DECREF(s);
 275     }
 276     wxPyEndBlockThreads(blocked);
 277 }
 278
 279 void wxPyApp::MacPrintFile(const wxString &fileName)
 280 {
 281     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 282     if (wxPyCBH_findCallback(m_myInst, "MacPrintFile")) {
 283         PyObject* s = wx2PyString(fileName);
 284         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 285         Py_DECREF(s);
 286     }
 287     wxPyEndBlockThreads(blocked);
 288 }
 289
 290 void wxPyApp::MacNewFile()
 291 {
 292     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 293     if (wxPyCBH_findCallback(m_myInst, "MacNewFile"))
 294         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 295     wxPyEndBlockThreads(blocked);
 296 }
 297
 298 void wxPyApp::MacReopenApp()
 299 {
 300     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 301     if (wxPyCBH_findCallback(m_myInst, "MacReopenApp"))
 302         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 303     wxPyEndBlockThreads(blocked);
 304 }
 305
 306
 307 /*static*/
 308 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 309 #ifdef __WXMAC__
 310     return s_macSupportPCMenuShortcuts;
 311 #else
 312     return 0;
 313 #endif
 314 }
 315
 316 /*static*/
 317 long wxPyApp::GetMacAboutMenuItemId() {
 318 #ifdef __WXMAC__
 319     return s_macAboutMenuItemId;
 320 #else
 321     return 0;
 322 #endif
 323 }
 324
 325 /*static*/
 326 long wxPyApp::GetMacPreferencesMenuItemId() {
 327 #ifdef __WXMAC__
 328     return s_macPreferencesMenuItemId;
 329 #else
 330     return 0;
 331 #endif
 332 }
 333
 334 /*static*/
 335 long wxPyApp::GetMacExitMenuItemId() {
 336 #ifdef __WXMAC__
 337     return s_macExitMenuItemId;
 338 #else
 339     return 0;
 340 #endif
 341 }
 342
 343 /*static*/
 344 wxString wxPyApp::GetMacHelpMenuTitleName() {
 345 #ifdef __WXMAC__
 346     return s_macHelpMenuTitleName;
 347 #else
 348     return wxEmptyString;
 349 #endif
 350 }
 351
 352 /*static*/
 353 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 354 #ifdef __WXMAC__
 355     s_macSupportPCMenuShortcuts = val;
 356 #endif
 357 }
 358
 359 /*static*/
 360 void wxPyApp::SetMacAboutMenuItemId(long val) {
 361 #ifdef __WXMAC__
 362     s_macAboutMenuItemId = val;
 363 #endif
 364 }
 365
 366 /*static*/
 367 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 368 #ifdef __WXMAC__
 369     s_macPreferencesMenuItemId = val;
 370 #endif
 371 }
 372
 373 /*static*/
 374 void wxPyApp::SetMacExitMenuItemId(long val) {
 375 #ifdef __WXMAC__
 376     s_macExitMenuItemId = val;
 377 #endif
 378 }
 379
 380 /*static*/
 381 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 382 #ifdef __WXMAC__
 383     s_macHelpMenuTitleName = val;
 384 #endif
 385 }
 386
 387
 388 // This finishes the initialization of wxWindows and then calls the OnInit
 389 // that should be present in the derived (Python) class.
 390 void wxPyApp::_BootstrapApp()
 391 {
 392     static      bool haveInitialized = false;
 393     bool        result;
 394     wxPyBlock_t     blocked;
 395     PyObject*   retval = NULL;
 396     PyObject*   pyint  = NULL;
 397
 398
 399     // Only initialize wxWidgets once
 400     if (! haveInitialized) {
 401
 402         // Get any command-line args passed to this program from the sys module
 403         int    argc = 0;
 404         char** argv = NULL;
 405         blocked = wxPyBeginBlockThreads();
 406
 407         PyObject* sysargv = PySys_GetObject("argv");
 408         PyObject* executable = PySys_GetObject("executable");
 409
 410         if (sysargv != NULL && executable != NULL) {
 411             argc = PyList_Size(sysargv) + 1;
 412             argv = new char*[argc+1];
 413             argv[0] = strdup(PyString_AsString(executable));
 414             int x;
 415             for(x=1; x<argc; x++) {
 416                 PyObject *pyArg = PyList_GetItem(sysargv, x-1);
 417                 argv[x] = strdup(PyString_AsString(pyArg));
 418             }
 419             argv[argc] = NULL;
 420         }
 421         wxPyEndBlockThreads(blocked);
 422
 423         // Initialize wxWidgets
 424         result = wxEntryStart(argc, argv);
 425         // wxApp takes ownership of the argv array, don't delete it here
 426
 427         blocked = wxPyBeginBlockThreads();
 428         if (! result)  {
 429             PyErr_SetString(PyExc_SystemError,
 430                             "wxEntryStart failed, unable to initialize wxWidgets!"
 431 #ifdef __WXGTK__
 432                             "  (Is DISPLAY set properly?)"
 433 #endif
 434                 );
 435             goto error;
 436         }
 437
 438         // On wxGTK the locale will be changed to match the system settings,
 439         // but Python before 2.4 needs to have LC_NUMERIC set to "C" in order
 440         // for the floating point conversions and such to work right.
 441 #if defined(__WXGTK__) && PY_VERSION_HEX < 0x02040000
 442         setlocale(LC_NUMERIC, "C");
 443 #endif
 444
 445         wxSystemOptions::SetOption(wxT("mac.textcontrol-use-mlte"), 1);
 446
 447         // The stock objects were all NULL when they were loaded into
 448         // SWIG generated proxies, so re-init those now...
 449         wxPy_ReinitStockObjects(3);
 450
 451         wxPyEndBlockThreads(blocked);
 452         haveInitialized = true;
 453     }
 454     else {
 455         this->argc = 0;
 456         this->argv = NULL;
 457     }
 458
 459
 460     // It's now ok to generate exceptions for assertion errors.
 461     wxPythonApp->SetStartupComplete(true);
 462
 463     // Call the Python wxApp's OnInit function
 464     blocked = wxPyBeginBlockThreads();
 465     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 466
 467         PyObject* method = m_myInst.GetLastFound();
 468         PyObject* argTuple = PyTuple_New(0);
 469         retval = PyEval_CallObject(method, argTuple);
 470         Py_DECREF(argTuple);
 471         Py_DECREF(method);
 472         if (retval == NULL)
 473             goto error;
 474
 475         pyint = PyNumber_Int(retval);
 476         if (! pyint) {
 477             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 478             goto error;
 479         }
 480         result = PyInt_AS_LONG(pyint);
 481     }
 482     else {
 483         // Is it okay if there is no OnInit?  Probably so...
 484         result = true;
 485     }
 486
 487     if (! result) {
 488         PyErr_SetString(PyExc_SystemExit, "OnInit returned false, exiting...");
 489     }
 490
 491  error:
 492     Py_XDECREF(retval);
 493     Py_XDECREF(pyint);
 494
 495     wxPyEndBlockThreads(blocked);
 496 };
 497
 498 //---------------------------------------------------------------------
 499 //----------------------------------------------------------------------
 500
 501
 502 #if 0
 503 static char* wxPyCopyCString(const wxChar* src)
 504 {
 505     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 506     size_t len = strlen(buff);
 507     char*  dest = new char[len+1];
 508     strcpy(dest, buff);
 509     return dest;
 510 }
 511
 512 #if wxUSE_UNICODE
 513 static char* wxPyCopyCString(const char* src)   // we need a char version too
 514 {
 515     size_t len = strlen(src);
 516     char*  dest = new char[len+1];
 517     strcpy(dest, src);
 518     return dest;
 519 }
 520 #endif
 521
 522 static wxChar* wxPyCopyWString(const char *src)
 523 {
 524     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 525     wxString str(src, *wxConvCurrent);
 526     return copystring(str);
 527 }
 528
 529 #if wxUSE_UNICODE
 530 static wxChar* wxPyCopyWString(const wxChar *src)
 531 {
 532     return copystring(src);
 533 }
 534 #endif
 535 #endif
 536
 537
 538 inline const char* dropwx(const char* name) {
 539     if (name[0] == 'w' && name[1] == 'x')
 540         return name+2;
 541     else
 542         return name;
 543 }
 544
 545 //----------------------------------------------------------------------
 546
 547 // This function is called when the wx._core_ module is imported to do some
 548 // initial setup.  (Before there is a wxApp object.)  The rest happens in
 549 // wxPyApp::_BootstrapApp
 550 void __wxPyPreStart(PyObject* moduleDict)
 551 {
 552
 553 #ifdef __WXMSW__
 554 //     wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF
 555 //                     | _CRTDBG_CHECK_ALWAYS_DF
 556 //                     | _CRTDBG_DELAY_FREE_MEM_DF
 557 //         );
 558 #endif
 559
 560 #ifdef WXP_WITH_THREAD
 561 #if wxPyUSE_GIL_STATE
 562     PyEval_InitThreads();
 563 #else
 564     PyEval_InitThreads();
 565     wxPyTStates = new wxPyThreadStateArray;
 566     wxPyTMutex = new wxMutex;
 567
 568     // Save the current (main) thread state in our array
 569     PyThreadState* tstate = wxPyBeginAllowThreads();
 570     wxPyEndAllowThreads(tstate);
 571 #endif
 572 #endif
 573
 574     // Ensure that the build options in the DLL (or whatever) match this build
 575     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 576
 577     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
 578     wxPy_ReinitStockObjects(1);
 579
 580     wxInitAllImageHandlers();
 581 }
 582
 583
 584
 585 void __wxPyCleanup() {
 586     wxPyDoingCleanup = true;
 587     if (wxPyDoCleanup) {
 588         wxPyDoCleanup = false;
 589         wxEntryCleanup();
 590     }
 591 #ifdef WXP_WITH_THREAD
 592 #if !wxPyUSE_GIL_STATE
 593     delete wxPyTMutex;
 594     wxPyTMutex = NULL;
 595     wxPyTStates->Empty();
 596     delete wxPyTStates;
 597     wxPyTStates = NULL;
 598 #endif
 599 #endif
 600 }
 601
 602
 603 // Save a reference to the dictionary of the wx._core module, and inject
 604 // a few more things into it.
 605 PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 606 {
 607
 608     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 609         return NULL;
 610
 611     if (!PyDict_Check(wxPython_dict)) {
 612         PyErr_SetString(PyExc_TypeError,
 613                         "_wxPySetDictionary must have dictionary object!");
 614         return NULL;
 615     }
 616
 617     if (! wxPyPtrTypeMap)
 618         wxPyPtrTypeMap = PyDict_New();
 619     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 620
 621     // Create an exception object to use for wxASSERTions
 622     wxPyAssertionError = PyErr_NewException("wx._core.PyAssertionError",
 623                                             PyExc_AssertionError, NULL);
 624     PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
 625
 626     // Create an exception object to use when the app object hasn't been created yet
 627     wxPyNoAppError = PyErr_NewException("wx._core.PyNoAppError",
 628                                         PyExc_RuntimeError, NULL);
 629     PyDict_SetItemString(wxPython_dict, "PyNoAppError", wxPyNoAppError);
 630
 631
 632
 633 #ifdef __WXMOTIF__
 634 #define wxPlatform "__WXMOTIF__"
 635 #define wxPlatName "wxMotif"
 636 #endif
 637 #ifdef __WXX11__
 638 #define wxPlatform "__WXX11__"
 639 #define wxPlatName "wxX11"
 640 #endif
 641 #ifdef __WXGTK__
 642 #define wxPlatform "__WXGTK__"
 643 #define wxPlatName "wxGTK"
 644 #endif
 645 #ifdef __WXMSW__
 646 #define wxPlatform "__WXMSW__"
 647 #define wxPlatName "wxMSW"
 648 #endif
 649 #ifdef __WXMAC__
 650 #define wxPlatform "__WXMAC__"
 651 #define wxPlatName "wxMac"
 652 #endif
 653
 654 #ifdef __WXDEBUG__
 655     int wxdebug = 1;
 656 #else
 657     int wxdebug = 0;
 658 #endif
 659
 660     // These should be deprecated in favor of the PlatformInfo tuple built below...
 661     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
 662     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 663     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 664
 665     // Make a tuple of strings that gives more info about the platform.
 666     PyObject* PlatInfo = PyList_New(0);
 667     PyObject* obj;
 668
 669 #define _AddInfoString(st) \
 670     obj = PyString_FromString(st); \
 671     PyList_Append(PlatInfo, obj); \
 672     Py_DECREF(obj)
 673
 674     _AddInfoString(wxPlatform);
 675     _AddInfoString(wxPlatName);
 676 #if wxUSE_UNICODE
 677     _AddInfoString("unicode");
 678 #else
 679     _AddInfoString("ansi");
 680 #endif
 681 #ifdef __WXGTK__
 682 #ifdef __WXGTK20__
 683     _AddInfoString("gtk2");
 684 #else
 685     _AddInfoString("gtk1");
 686 #endif
 687 #endif
 688 #ifdef __WXDEBUG__
 689     _AddInfoString("wx-assertions-on");
 690 #else
 691     _AddInfoString("wx-assertions-off");
 692 #endif
 693
 694 #undef _AddInfoString
 695
 696     PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo);
 697     Py_DECREF(PlatInfo);
 698     PyDict_SetItemString(wxPython_dict, "PlatformInfo", PlatInfoTuple);
 699
 700     RETURN_NONE();
 701 }
 702
 703
 704 //---------------------------------------------------------------------------
 705
 706 // Python's PyInstance_Check does not return True for instances of new-style
 707 // classes.  This should get close enough for both new and old classes but I
 708 // should re-evaluate the need for doing instance checks...
 709 bool wxPyInstance_Check(PyObject* obj) {
 710     return PyObject_HasAttrString(obj, "__class__") != 0;
 711 }
 712
 713
 714 // This one checks if the object is an instance of a SWIG proxy class (it has
 715 // a .this attribute)
 716 bool wxPySwigInstance_Check(PyObject* obj) {
 717     return PyObject_HasAttrString(obj, "this") != 0;
 718 }
 719
 720 //---------------------------------------------------------------------------
 721
 722 // The stock objects are no longer created when the wx._core_ module is
 723 // imported, but only after the app object has been created.  The
 724 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 725 // objects though various stages of evolution:
 726 //
 727 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 728 //           object will be created (otherwise SWIG will just use None.)
 729 //
 730 //   pass 2: After the module has been imported and the python proxys have
 731 //           been created, then set the __class__ to be _wxPyUnbornObject so
 732 //           it will catch any access to the object and will raise an exception.
 733 //
 734 //   pass 3: Finally, from BootstrapApp patch things up so the stock objects
 735 //           can be used.
 736
 737
 738 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 739 {
 740     wxPy_ReinitStockObjects(2);
 741     RETURN_NONE();
 742 }
 743
 744
 745 static void rsoPass2(const char* name)
 746 {
 747     static PyObject* unbornObjectClass = NULL;
 748     PyObject* obj;
 749
 750     if (unbornObjectClass == NULL) {
 751         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 752         Py_INCREF(unbornObjectClass);
 753     }
 754
 755     // Find the object instance
 756     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 757     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 758     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 759
 760     // Change its class
 761     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 762
 763 }
 764
 765 static void rsoPass3(const char* name, const char* classname, void* ptr)
 766 {
 767     PyObject* obj;
 768     PyObject* classobj;
 769     PyObject* ptrobj;
 770
 771     // Find the object instance
 772     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 773     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 774     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 775
 776     // Find the class object and put it back in the instance
 777     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 778     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 779     PyObject_SetAttrString(obj, "__class__",  classobj);
 780
 781     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 782     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 783     PyObject_SetAttrString(obj, "this", ptrobj);
 784     Py_DECREF(ptrobj);
 785 }
 786
 787
 788
 789 void wxPy_ReinitStockObjects(int pass)
 790 {
 791
 792     // If there is already an App object then wxPython is probably embedded in
 793     // a wx C++ application, so there is no need to do all this.
 794     static bool embedded = false;
 795     if ((pass == 1 || pass == 2) && wxTheApp) {
 796         embedded = true;
 797         return;
 798     }
 799     if (pass == 3 && embedded)
 800         return;
 801
 802
 803 #define REINITOBJ(name, classname) \
 804     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 805     else if (pass == 2) { rsoPass2(#name); } \
 806     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 807
 808
 809 #define REINITOBJ2(name, classname) \
 810     if (pass == 1) { } \
 811     else if (pass == 2) { rsoPass2(#name); } \
 812     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 813
 814
 815     REINITOBJ(wxNORMAL_FONT, wxFont);
 816     REINITOBJ(wxSMALL_FONT, wxFont);
 817     REINITOBJ(wxITALIC_FONT, wxFont);
 818     REINITOBJ(wxSWISS_FONT, wxFont);
 819
 820     REINITOBJ(wxRED_PEN, wxPen);
 821     REINITOBJ(wxCYAN_PEN, wxPen);
 822     REINITOBJ(wxGREEN_PEN, wxPen);
 823     REINITOBJ(wxBLACK_PEN, wxPen);
 824     REINITOBJ(wxWHITE_PEN, wxPen);
 825     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 826     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 827     REINITOBJ(wxGREY_PEN, wxPen);
 828     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 829     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 830
 831     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 832     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 833     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 834     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 835     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 836     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 837     REINITOBJ(wxRED_BRUSH, wxBrush);
 838     REINITOBJ(wxGREY_BRUSH, wxBrush);
 839     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 840     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 841
 842     REINITOBJ(wxBLACK, wxColour);
 843     REINITOBJ(wxWHITE, wxColour);
 844     REINITOBJ(wxRED, wxColour);
 845     REINITOBJ(wxBLUE, wxColour);
 846     REINITOBJ(wxGREEN, wxColour);
 847     REINITOBJ(wxCYAN, wxColour);
 848     REINITOBJ(wxLIGHT_GREY, wxColour);
 849
 850     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 851     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 852     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 853
 854     REINITOBJ2(wxNullBitmap, wxBitmap);
 855     REINITOBJ2(wxNullIcon, wxIcon);
 856     REINITOBJ2(wxNullCursor, wxCursor);
 857     REINITOBJ2(wxNullPen, wxPen);
 858     REINITOBJ2(wxNullBrush, wxBrush);
 859     REINITOBJ2(wxNullPalette, wxPalette);
 860     REINITOBJ2(wxNullFont, wxFont);
 861     REINITOBJ2(wxNullColour, wxColour);
 862
 863     REINITOBJ(wxTheFontList, wxFontList);
 864     REINITOBJ(wxThePenList, wxPenList);
 865     REINITOBJ(wxTheBrushList, wxBrushList);
 866     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 867
 868
 869     REINITOBJ2(wxDefaultValidator, wxValidator);
 870     REINITOBJ2(wxNullImage, wxImage);
 871     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 872
 873 #undef REINITOBJ
 874 #undef REINITOBJ2
 875 }
 876
 877 //---------------------------------------------------------------------------
 878
 879 // Check for existence of a wxApp, setting an exception if there isn't one.
 880 // This doesn't need to aquire the GIL because it should only be called from
 881 // an %exception before the lock is released.
 882
 883 bool wxPyCheckForApp() {
 884     if (wxTheApp != NULL)
 885         return true;
 886     else {
 887         PyErr_SetString(wxPyNoAppError, "The wx.App object must be created first!");
 888         return false;
 889     }
 890 }
 891
 892 //---------------------------------------------------------------------------
 893
 894 void wxPyUserData_dtor(wxPyUserData* self) {
 895     if (! wxPyDoingCleanup) {
 896         wxPyBlock_t blocked = wxPyBeginBlockThreads();
 897         Py_DECREF(self->m_obj);
 898         self->m_obj = NULL;
 899         wxPyEndBlockThreads(blocked);
 900     }
 901 }
 902
 903
 904 void wxPyClientData_dtor(wxPyClientData* self) {
 905     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 906                                         // may have already garbage collected the object...
 907         if (self->m_incRef) {
 908             wxPyBlock_t blocked = wxPyBeginBlockThreads();
 909             Py_DECREF(self->m_obj);
 910             wxPyEndBlockThreads(blocked);
 911         }
 912         self->m_obj = NULL;
 913     }
 914 }
 915
 916
 917
 918 // This is called when an OOR controled object is being destroyed.  Although
 919 // the C++ object is going away there is no way to force the Python object
 920 // (and all references to it) to die too.  This causes problems (crashes) in
 921 // wxPython when a python shadow object attempts to call a C++ method using
 922 // the now bogus pointer... So to try and prevent this we'll do a little black
 923 // magic and change the class of the python instance to a class that will
 924 // raise an exception for any attempt to call methods with it.  See
 925 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 926 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 927
 928     static PyObject* deadObjectClass = NULL;
 929
 930     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 931     if (deadObjectClass == NULL) {
 932         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 933         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 934         // will lead to a deadlock when it tries to aquire the GIL again.
 935         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 936         Py_INCREF(deadObjectClass);
 937     }
 938
 939
 940     // Only if there is more than one reference to the object and we are
 941     // holding the OOR reference:
 942     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 && self->m_incRef) {
 943         // bool isInstance = wxPyInstance_Check(self->m_obj);
 944         // TODO same here
 945         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 946
 947         // Call __del__, if there is one.
 948         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 949         if (func) {
 950             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 951             Py_XDECREF(rv);
 952             Py_DECREF(func);
 953         }
 954         if (PyErr_Occurred())
 955             PyErr_Clear();      // just ignore it for now
 956
 957
 958         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 959         if (dict) {
 960             // Clear the instance's dictionary
 961             PyDict_Clear(dict);
 962
 963             // put the name of the old class into the instance, and then reset the
 964             // class to be the dead class.
 965             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 966             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 967             PyDict_SetItemString(dict, "_name", name);
 968             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 969             //Py_INCREF(deadObjectClass);
 970             Py_DECREF(klass);
 971             Py_DECREF(name);
 972         }
 973     }
 974
 975     // m_obj is DECREF'd in the base class dtor...
 976     wxPyEndBlockThreads(blocked);
 977 }
 978
 979
 980 //---------------------------------------------------------------------------
 981 // Stuff used by OOR to find the right wxPython class type to return and to
 982 // build it.
 983
 984
 985 // The pointer type map is used when the "pointer" type name generated by SWIG
 986 // is not the same as the shadow class name, for example wxPyTreeCtrl
 987 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 988 // so we'll just make it a Python dictionary in the wx module's namespace.
 989 // (See __wxSetDictionary)
 990 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 991     if (! wxPyPtrTypeMap)
 992         wxPyPtrTypeMap = PyDict_New();
 993     PyDict_SetItemString(wxPyPtrTypeMap,
 994                          (char*)commonName,
 995                          PyString_FromString((char*)ptrName));
 996 }
 997
 998
 999
1000
1001 PyObject*  wxPyMake_wxObject(wxObject* source, bool setThisOwn, bool checkEvtHandler) {
1002     PyObject* target = NULL;
1003     bool      isEvtHandler = false;
1004
1005     if (source) {
1006         // If it's derived from wxEvtHandler then there may
1007         // already be a pointer to a Python object that we can use
1008         // in the OOR data.
1009         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
1010             isEvtHandler = true;
1011             wxEvtHandler* eh = (wxEvtHandler*)source;
1012             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
1013             if (data) {
1014                 target = data->m_obj;
1015                 if (target)
1016                     Py_INCREF(target);
1017             }
1018         }
1019
1020         if (! target) {
1021             // Otherwise make it the old fashioned way by making a new shadow
1022             // object and putting this pointer in it.  Look up the class
1023             // heirarchy until we find a class name that is located in the
1024             // python module.
1025             const wxClassInfo* info   = source->GetClassInfo();
1026             wxString           name   = info->GetClassName();
1027             bool               exists = wxPyCheckSwigType(name);
1028             while (info && !exists) {
1029                 info = info->GetBaseClass1();
1030                 name = info->GetClassName();
1031                 exists = wxPyCheckSwigType(name);
1032             }
1033             if (info) {
1034                 target = wxPyConstructObject((void*)source, name, setThisOwn);
1035                 if (target && isEvtHandler)
1036                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
1037             } else {
1038                 wxString msg(wxT("wxPython class not found for "));
1039                 msg += source->GetClassInfo()->GetClassName();
1040                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
1041                 target = NULL;
1042             }
1043         }
1044     } else {  // source was NULL so return None.
1045         Py_INCREF(Py_None); target = Py_None;
1046     }
1047     return target;
1048 }
1049
1050
1051 PyObject*  wxPyMake_wxSizer(wxSizer* source, bool setThisOwn) {
1052     PyObject* target = NULL;
1053
1054     if (source && wxIsKindOf(source, wxSizer)) {
1055         // If it's derived from wxSizer then there may already be a pointer to
1056         // a Python object that we can use in the OOR data.
1057         wxSizer* sz = (wxSizer*)source;
1058         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
1059         if (data) {
1060             target = data->m_obj;
1061             if (target)
1062                 Py_INCREF(target);
1063         }
1064     }
1065     if (! target) {
1066         target = wxPyMake_wxObject(source, setThisOwn, false);
1067         if (target != Py_None)
1068             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
1069     }
1070     return target;
1071 }
1072
1073
1074 //---------------------------------------------------------------------------
1075
1076
1077 #ifdef WXP_WITH_THREAD
1078 #if !wxPyUSE_GIL_STATE
1079
1080 inline
1081 unsigned long wxPyGetCurrentThreadId() {
1082     return wxThread::GetCurrentId();
1083 }
1084
1085 static wxPyThreadState gs_shutdownTState;
1086
1087 static
1088 wxPyThreadState* wxPyGetThreadState() {
1089     if (wxPyTMutex == NULL) // Python is shutting down...
1090         return &gs_shutdownTState;
1091
1092     unsigned long ctid = wxPyGetCurrentThreadId();
1093     wxPyThreadState* tstate = NULL;
1094
1095     wxPyTMutex->Lock();
1096     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1097         wxPyThreadState& info = wxPyTStates->Item(i);
1098         if (info.tid == ctid) {
1099             tstate = &info;
1100             break;
1101         }
1102     }
1103     wxPyTMutex->Unlock();
1104     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
1105     return tstate;
1106 }
1107
1108
1109 static
1110 void wxPySaveThreadState(PyThreadState* tstate) {
1111     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
1112         gs_shutdownTState.tstate = tstate;
1113         return;
1114     }
1115     unsigned long ctid = wxPyGetCurrentThreadId();
1116     wxPyTMutex->Lock();
1117     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1118         wxPyThreadState& info = wxPyTStates->Item(i);
1119         if (info.tid == ctid) {
1120 #if 0
1121             if (info.tstate != tstate)
1122                 wxLogMessage("*** tstate mismatch!???");
1123 #endif
1124             info.tstate = tstate;    // allow for transient tstates
1125             // Normally it will never change, but apparently COM callbacks
1126             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
1127             // tstate which will then be garbage the next time we try to use
1128             // it...
1129
1130             wxPyTMutex->Unlock();
1131             return;
1132         }
1133     }
1134     // not found, so add it...
1135     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
1136     wxPyTMutex->Unlock();
1137 }
1138
1139 #endif
1140 #endif
1141
1142
1143
1144 // Calls from Python to wxWindows code are wrapped in calls to these
1145 // functions:
1146
1147 PyThreadState* wxPyBeginAllowThreads() {
1148 #ifdef WXP_WITH_THREAD
1149     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
1150 #if !wxPyUSE_GIL_STATE
1151     wxPySaveThreadState(saved);
1152 #endif
1153     return saved;
1154 #else
1155     return NULL;
1156 #endif
1157 }
1158
1159 void wxPyEndAllowThreads(PyThreadState* saved) {
1160 #ifdef WXP_WITH_THREAD
1161     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
1162 #endif
1163 }
1164
1165
1166
1167 // Calls from wxWindows back to Python code, or even any PyObject
1168 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
1169
1170 wxPyBlock_t wxPyBeginBlockThreads() {
1171 #ifdef WXP_WITH_THREAD
1172 #if wxPyUSE_GIL_STATE
1173     PyGILState_STATE state = PyGILState_Ensure();
1174     return state;
1175 #else
1176     PyThreadState *current = _PyThreadState_Current;
1177
1178     // Only block if there wasn't already a tstate, or if the current one is
1179     // not the one we are wanting to change to.  This should prevent deadlock
1180     // if there are nested calls to wxPyBeginBlockThreads
1181     wxPyBlock_t blocked = false;
1182     wxPyThreadState* tstate = wxPyGetThreadState();
1183     if (current != tstate->tstate) {
1184         PyEval_RestoreThread(tstate->tstate);
1185         blocked = true;
1186     }
1187     return blocked;
1188 #endif
1189 #else
1190     return false;
1191 #endif
1192 }
1193
1194
1195 void wxPyEndBlockThreads(wxPyBlock_t blocked) {
1196 #ifdef WXP_WITH_THREAD
1197 #if wxPyUSE_GIL_STATE
1198     PyGILState_Release(blocked);
1199 #else
1200     // Only unblock if we blocked in the last call to wxPyBeginBlockThreads.
1201     // The value of blocked passed in needs to be the same as that returned
1202     // from wxPyBeginBlockThreads at the same nesting level.
1203     if ( blocked ) {
1204         PyEval_SaveThread();
1205     }
1206 #endif
1207 #endif
1208 }
1209
1210
1211 //---------------------------------------------------------------------------
1212 // wxPyInputStream and wxPyCBInputStream methods
1213
1214
1215 void wxPyInputStream::close() {
1216     /* do nothing for now */
1217 }
1218
1219 void wxPyInputStream::flush() {
1220     /* do nothing for now */
1221 }
1222
1223 bool wxPyInputStream::eof() {
1224     if (m_wxis)
1225         return m_wxis->Eof();
1226     else
1227         return true;
1228 }
1229
1230 wxPyInputStream::~wxPyInputStream() {
1231     if (m_wxis)
1232         delete m_wxis;
1233 }
1234
1235
1236
1237
1238 PyObject* wxPyInputStream::read(int size) {
1239     PyObject* obj = NULL;
1240     wxMemoryBuffer buf;
1241     const int BUFSIZE = 1024;
1242
1243     // check if we have a real wxInputStream to work with
1244     if (!m_wxis) {
1245         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1246         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1247         wxPyEndBlockThreads(blocked);
1248         return NULL;
1249     }
1250
1251     if (size < 0) {
1252         // read while bytes are available on the stream
1253         while ( m_wxis->CanRead() ) {
1254             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1255             buf.UngetAppendBuf(m_wxis->LastRead());
1256         }
1257
1258     } else {  // Read only size number of characters
1259         m_wxis->Read(buf.GetWriteBuf(size), size);
1260         buf.UngetWriteBuf(m_wxis->LastRead());
1261     }
1262
1263     // error check
1264     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1265     wxStreamError err = m_wxis->GetLastError();
1266     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1267         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1268     }
1269     else {
1270         // We use only strings for the streams, not unicode
1271         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1272     }
1273     wxPyEndBlockThreads(blocked);
1274     return obj;
1275 }
1276
1277
1278 PyObject* wxPyInputStream::readline(int size) {
1279     PyObject* obj = NULL;
1280     wxMemoryBuffer buf;
1281     int i;
1282     char ch;
1283
1284     // check if we have a real wxInputStream to work with
1285     if (!m_wxis) {
1286         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1287         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1288         wxPyEndBlockThreads(blocked);
1289         return NULL;
1290     }
1291
1292     // read until \n or byte limit reached
1293     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1294         ch = m_wxis->GetC();
1295         buf.AppendByte(ch);
1296     }
1297
1298     // errorcheck
1299     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1300     wxStreamError err = m_wxis->GetLastError();
1301     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1302         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1303     }
1304     else {
1305         // We use only strings for the streams, not unicode
1306         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1307     }
1308     wxPyEndBlockThreads(blocked);
1309     return obj;
1310 }
1311
1312
1313 PyObject* wxPyInputStream::readlines(int sizehint) {
1314     PyObject* pylist;
1315
1316     // check if we have a real wxInputStream to work with
1317     if (!m_wxis) {
1318         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1319         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1320         wxPyEndBlockThreads(blocked);
1321         return NULL;
1322     }
1323
1324     // init list
1325     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1326     pylist = PyList_New(0);
1327     wxPyEndBlockThreads(blocked);
1328
1329     if (!pylist) {
1330         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1331         PyErr_NoMemory();
1332         wxPyEndBlockThreads(blocked);
1333         return NULL;
1334     }
1335
1336     // read sizehint bytes or until EOF
1337     int i;
1338     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1339         PyObject* s = this->readline();
1340         if (s == NULL) {
1341             wxPyBlock_t blocked = wxPyBeginBlockThreads();
1342             Py_DECREF(pylist);
1343             wxPyEndBlockThreads(blocked);
1344             return NULL;
1345         }
1346         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1347         PyList_Append(pylist, s);
1348         i += PyString_Size(s);
1349         wxPyEndBlockThreads(blocked);
1350     }
1351
1352     // error check
1353     wxStreamError err = m_wxis->GetLastError();
1354     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1355         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1356         Py_DECREF(pylist);
1357         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1358         wxPyEndBlockThreads(blocked);
1359         return NULL;
1360     }
1361
1362     return pylist;
1363 }
1364
1365
1366 void wxPyInputStream::seek(int offset, int whence) {
1367     if (m_wxis)
1368         m_wxis->SeekI(offset, wxSeekMode(whence));
1369 }
1370
1371 int wxPyInputStream::tell(){
1372     if (m_wxis)
1373         return m_wxis->TellI();
1374     else return 0;
1375 }
1376
1377
1378
1379
1380 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1381     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1382 {}
1383
1384 wxPyCBInputStream::wxPyCBInputStream(const wxPyCBInputStream& other)
1385 {
1386     m_read  = other.m_read;
1387     m_seek  = other.m_seek;
1388     m_tell  = other.m_tell;
1389     m_block = other.m_block;
1390     Py_INCREF(m_read);
1391     Py_INCREF(m_seek);
1392     Py_INCREF(m_tell);
1393 }
1394
1395
1396 wxPyCBInputStream::~wxPyCBInputStream() {
1397     wxPyBlock_t blocked;
1398     if (m_block) blocked = wxPyBeginBlockThreads();
1399     Py_XDECREF(m_read);
1400     Py_XDECREF(m_seek);
1401     Py_XDECREF(m_tell);
1402     if (m_block) wxPyEndBlockThreads(blocked);
1403 }
1404
1405
1406 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1407     wxPyBlock_t blocked;
1408     if (block) blocked = wxPyBeginBlockThreads();
1409
1410     PyObject* read = getMethod(py, "read");
1411     PyObject* seek = getMethod(py, "seek");
1412     PyObject* tell = getMethod(py, "tell");
1413
1414     if (!read) {
1415         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1416         Py_XDECREF(read);
1417         Py_XDECREF(seek);
1418         Py_XDECREF(tell);
1419         if (block) wxPyEndBlockThreads(blocked);
1420         return NULL;
1421     }
1422
1423     if (block) wxPyEndBlockThreads(blocked);
1424     return new wxPyCBInputStream(read, seek, tell, block);
1425 }
1426
1427
1428 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1429     return wxPyCBInputStream::create(py, block);
1430 }
1431
1432 wxPyCBInputStream* wxPyCBInputStream_copy(wxPyCBInputStream* other) {
1433     return new wxPyCBInputStream(*other);
1434 }
1435
1436 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1437     if (!PyObject_HasAttrString(py, name))
1438         return NULL;
1439     PyObject* o = PyObject_GetAttrString(py, name);
1440     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1441         Py_DECREF(o);
1442         return NULL;
1443     }
1444     return o;
1445 }
1446
1447
1448 wxFileOffset wxPyCBInputStream::GetLength() const {
1449     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1450     if (m_seek && m_tell) {
1451         wxFileOffset temp = self->OnSysTell();
1452         wxFileOffset ret = self->OnSysSeek(0, wxFromEnd);
1453         self->OnSysSeek(temp, wxFromStart);
1454         return ret;
1455     }
1456     else
1457         return wxInvalidOffset;
1458 }
1459
1460
1461 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1462     if (bufsize == 0)
1463         return 0;
1464
1465     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1466     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1467     PyObject* result = PyEval_CallObject(m_read, arglist);
1468     Py_DECREF(arglist);
1469
1470     size_t o = 0;
1471     if ((result != NULL) && PyString_Check(result)) {
1472         o = PyString_Size(result);
1473         if (o == 0)
1474             m_lasterror = wxSTREAM_EOF;
1475         if (o > bufsize)
1476             o = bufsize;
1477         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1478         Py_DECREF(result);
1479
1480     }
1481     else
1482         m_lasterror = wxSTREAM_READ_ERROR;
1483     wxPyEndBlockThreads(blocked);
1484     return o;
1485 }
1486
1487 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1488     m_lasterror = wxSTREAM_WRITE_ERROR;
1489     return 0;
1490 }
1491
1492
1493 wxFileOffset wxPyCBInputStream::OnSysSeek(wxFileOffset off, wxSeekMode mode) {
1494     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1495     PyObject* arglist = PyTuple_New(2);
1496
1497     if (sizeof(wxFileOffset) > sizeof(long))
1498         // wxFileOffset is a 64-bit value...
1499         PyTuple_SET_ITEM(arglist, 0, PyLong_FromLongLong(off));
1500     else
1501         PyTuple_SET_ITEM(arglist, 0, PyInt_FromLong(off));
1502
1503     PyTuple_SET_ITEM(arglist, 1, PyInt_FromLong(mode));
1504
1505
1506     PyObject* result = PyEval_CallObject(m_seek, arglist);
1507     Py_DECREF(arglist);
1508     Py_XDECREF(result);
1509     wxPyEndBlockThreads(blocked);
1510     return OnSysTell();
1511 }
1512
1513
1514 wxFileOffset wxPyCBInputStream::OnSysTell() const {
1515     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1516     PyObject* arglist = Py_BuildValue("()");
1517     PyObject* result = PyEval_CallObject(m_tell, arglist);
1518     Py_DECREF(arglist);
1519     wxFileOffset o = 0;
1520     if (result != NULL) {
1521         if (PyLong_Check(result))
1522             o = PyLong_AsLongLong(result);
1523         else
1524             o = PyInt_AsLong(result);
1525         Py_DECREF(result);
1526     };
1527     wxPyEndBlockThreads(blocked);
1528     return o;
1529 }
1530
1531 //----------------------------------------------------------------------
1532
1533 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1534
1535 wxPyCallback::wxPyCallback(PyObject* func) {
1536     m_func = func;
1537     Py_INCREF(m_func);
1538 }
1539
1540 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1541     m_func = other.m_func;
1542     Py_INCREF(m_func);
1543 }
1544
1545 wxPyCallback::~wxPyCallback() {
1546     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1547     Py_DECREF(m_func);
1548     wxPyEndBlockThreads(blocked);
1549 }
1550
1551
1552 #define wxPy_PRECALLINIT     "_preCallInit"
1553 #define wxPy_POSTCALLCLEANUP "_postCallCleanup"
1554
1555 // This function is used for all events destined for Python event handlers.
1556 void wxPyCallback::EventThunker(wxEvent& event) {
1557     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1558     PyObject*       func = cb->m_func;
1559     PyObject*       result;
1560     PyObject*       arg;
1561     PyObject*       tuple;
1562     bool            checkSkip = false;
1563
1564     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1565     wxString className = event.GetClassInfo()->GetClassName();
1566
1567     // If the event is one of these types then pass the original
1568     // event object instead of the one passed to us.
1569     if ( className == wxT("wxPyEvent") ) {
1570         arg =       ((wxPyEvent*)&event)->GetSelf();
1571         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1572     }
1573     else if ( className == wxT("wxPyCommandEvent") ) {
1574         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1575         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1576     }
1577     else {
1578         arg = wxPyConstructObject((void*)&event, className);
1579     }
1580
1581     if (!arg) {
1582         PyErr_Print();
1583     } else {
1584         // "intern" the pre/post method names to speed up the HasAttr
1585         static PyObject* s_preName  = NULL;
1586         static PyObject* s_postName = NULL;
1587         if (s_preName == NULL) {
1588             s_preName  = PyString_FromString(wxPy_PRECALLINIT);
1589             s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP);
1590         }
1591
1592         // Check if the event object needs some preinitialization
1593         if (PyObject_HasAttr(arg, s_preName)) {
1594             result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL);
1595             if ( result ) {
1596                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1597                 PyErr_Clear();       // Just in case...
1598             } else {
1599                 PyErr_Print();
1600             }
1601         }
1602
1603         // Call the event handler, passing the event object
1604         tuple = PyTuple_New(1);
1605         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1606         result = PyEval_CallObject(func, tuple);
1607         if ( result ) {
1608             Py_DECREF(result);   // result is ignored, but we still need to decref it
1609             PyErr_Clear();       // Just in case...
1610         } else {
1611             PyErr_Print();
1612         }
1613
1614         // Check if the event object needs some post cleanup
1615         if (PyObject_HasAttr(arg, s_postName)) {
1616             result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL);
1617             if ( result ) {
1618                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1619                 PyErr_Clear();       // Just in case...
1620             } else {
1621                 PyErr_Print();
1622             }
1623         }
1624
1625         if ( checkSkip ) {
1626             // if the event object was one of our special types and
1627             // it had been cloned, then we need to extract the Skipped
1628             // value from the original and set it in the clone.
1629             result = PyObject_CallMethod(arg, "GetSkipped", "");
1630             if ( result ) {
1631                 event.Skip(PyInt_AsLong(result));
1632                 Py_DECREF(result);
1633             } else {
1634                 PyErr_Print();
1635             }
1636         }
1637         Py_DECREF(tuple);
1638     }
1639     wxPyEndBlockThreads(blocked);
1640 }
1641
1642
1643 //----------------------------------------------------------------------
1644
1645 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1646       m_lastFound = NULL;
1647       m_self = other.m_self;
1648       m_class = other.m_class;
1649       if (m_self) {
1650           Py_INCREF(m_self);
1651           Py_INCREF(m_class);
1652       }
1653 }
1654
1655
1656 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1657     m_self = self;
1658     m_class = klass;
1659     m_incRef = incref;
1660     if (incref) {
1661         Py_INCREF(m_self);
1662         Py_INCREF(m_class);
1663     }
1664 }
1665
1666
1667 #if PYTHON_API_VERSION >= 1011
1668
1669 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1670 // in which the method was defined.  Starting with 2.2 it returns
1671 // "class that asked for the method" which seems totally bogus to me
1672 // but apprently it fixes some obscure problem waiting to happen in
1673 // Python.  Since the API was not documented Guido and the gang felt
1674 // safe in changing it.  Needless to say that totally screwed up the
1675 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1676 // code to find the class where the method is actually defined...
1677
1678 static
1679 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1680 {
1681     int i, n;
1682
1683     if (PyType_Check(klass)) {      // new style classes
1684         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1685         PyTypeObject* type = (PyTypeObject*)klass;
1686         PyObject *mro, *res, *base, *dict;
1687         /* Look in tp_dict of types in MRO */
1688         mro = type->tp_mro;
1689         assert(PyTuple_Check(mro));
1690         n = PyTuple_GET_SIZE(mro);
1691         for (i = 0; i < n; i++) {
1692             base = PyTuple_GET_ITEM(mro, i);
1693             if (PyClass_Check(base))
1694                 dict = ((PyClassObject *)base)->cl_dict;
1695             else {
1696                 assert(PyType_Check(base));
1697                 dict = ((PyTypeObject *)base)->tp_dict;
1698             }
1699             assert(dict && PyDict_Check(dict));
1700             res = PyDict_GetItem(dict, name);
1701             if (res != NULL)
1702                 return base;
1703         }
1704         return NULL;
1705     }
1706
1707     else if (PyClass_Check(klass)) { // old style classes
1708         // This code is borrowed/adapted from class_lookup in classobject.c
1709         PyClassObject* cp = (PyClassObject*)klass;
1710         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1711         if (value != NULL) {
1712             return (PyObject*)cp;
1713         }
1714         n = PyTuple_Size(cp->cl_bases);
1715         for (i = 0; i < n; i++) {
1716             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1717             PyObject *v = PyFindClassWithAttr(base, name);
1718             if (v != NULL)
1719                 return v;
1720         }
1721         return NULL;
1722     }
1723     return NULL;
1724 }
1725 #endif
1726
1727
1728 static
1729 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1730 {
1731     PyObject* mgc = PyMethod_GET_CLASS(method);
1732
1733 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1734     return mgc;
1735 #else                             // 2.2 and after, the hard way...
1736
1737     PyObject* nameo = PyString_FromString(name);
1738     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1739     Py_DECREF(nameo);
1740     return klass;
1741 #endif
1742 }
1743
1744
1745
1746 bool wxPyCallbackHelper::findCallback(const char* name) const {
1747     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1748     self->m_lastFound = NULL;
1749
1750     // If the object (m_self) has an attibute of the given name...
1751     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1752         PyObject *method, *klass;
1753         method = PyObject_GetAttrString(m_self, (char*)name);
1754
1755         // ...and if that attribute is a method, and if that method's class is
1756         // not from a base class...
1757         if (PyMethod_Check(method) &&
1758             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1759             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1760
1761             // ...then we'll save a pointer to the method so callCallback can call it.
1762             self->m_lastFound = method;
1763         }
1764         else {
1765             Py_DECREF(method);
1766         }
1767     }
1768     return m_lastFound != NULL;
1769 }
1770
1771
1772 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1773     PyObject*   result;
1774     int         retval = false;
1775
1776     result = callCallbackObj(argTuple);
1777     if (result) {                       // Assumes an integer return type...
1778         retval = PyInt_AsLong(result);
1779         Py_DECREF(result);
1780         PyErr_Clear();                  // forget about it if it's not...
1781     }
1782     return retval;
1783 }
1784
1785 // Invoke the Python callable object, returning the raw PyObject return
1786 // value.  Caller should DECREF the return value and also manage the GIL.
1787 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1788     PyObject* result;
1789
1790     // Save a copy of the pointer in case the callback generates another
1791     // callback.  In that case m_lastFound will have a different value when
1792     // it gets back here...
1793     PyObject* method = m_lastFound;
1794
1795     result = PyEval_CallObject(method, argTuple);
1796     Py_DECREF(argTuple);
1797     Py_DECREF(method);
1798     if (!result) {
1799         PyErr_Print();
1800     }
1801     return result;
1802 }
1803
1804
1805 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1806     cbh.setSelf(self, klass, incref);
1807 }
1808
1809 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1810     return cbh.findCallback(name);
1811 }
1812
1813 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1814     return cbh.callCallback(argTuple);
1815 }
1816
1817 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1818     return cbh.callCallbackObj(argTuple);
1819 }
1820
1821
1822 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1823     if (cbh->m_incRef) {
1824         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1825         Py_XDECREF(cbh->m_self);
1826         Py_XDECREF(cbh->m_class);
1827         wxPyEndBlockThreads(blocked);
1828     }
1829 }
1830
1831 //---------------------------------------------------------------------------
1832 //---------------------------------------------------------------------------
1833 // These event classes can be derived from in Python and passed through the event
1834 // system without losing anything.  They do this by keeping a reference to
1835 // themselves and some special case handling in wxPyCallback::EventThunker.
1836
1837
1838 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1839     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1840     //Py_INCREF(m_self);        //      circular loops...
1841     m_cloned = false;
1842 }
1843
1844 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1845     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1846     if (m_cloned)
1847         Py_DECREF(m_self);
1848     wxPyEndBlockThreads(blocked);
1849 }
1850
1851 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1852     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1853     if (m_cloned)
1854         Py_DECREF(m_self);
1855     m_self = self;
1856     if (clone) {
1857         Py_INCREF(m_self);
1858         m_cloned = true;
1859     }
1860     wxPyEndBlockThreads(blocked);
1861 }
1862
1863 PyObject* wxPyEvtSelfRef::GetSelf() const {
1864     Py_INCREF(m_self);
1865     return m_self;
1866 }
1867
1868
1869 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1870 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1871
1872
1873 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1874     : wxEvent(winid, commandType) {
1875 }
1876
1877
1878 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1879     : wxEvent(evt)
1880 {
1881     SetSelf(evt.m_self, true);
1882 }
1883
1884
1885 wxPyEvent::~wxPyEvent() {
1886 }
1887
1888
1889 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1890     : wxCommandEvent(commandType, id) {
1891 }
1892
1893
1894 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1895     : wxCommandEvent(evt)
1896 {
1897     SetSelf(evt.m_self, true);
1898 }
1899
1900
1901 wxPyCommandEvent::~wxPyCommandEvent() {
1902 }
1903
1904
1905
1906
1907
1908 //---------------------------------------------------------------------------
1909 //---------------------------------------------------------------------------
1910 // Convert a wxList to a Python List, only works for lists of wxObjects
1911
1912 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1913     wxList*     list = (wxList*)listbase;  // this is probably bad...
1914     PyObject*   pyList;
1915     PyObject*   pyObj;
1916     wxObject*   wxObj;
1917     wxNode*     node = list->GetFirst();
1918
1919     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1920     pyList = PyList_New(0);
1921     while (node) {
1922         wxObj = node->GetData();
1923         pyObj = wxPyMake_wxObject(wxObj,false);
1924         PyList_Append(pyList, pyObj);
1925         node = node->GetNext();
1926     }
1927     wxPyEndBlockThreads(blocked);
1928     return pyList;
1929 }
1930
1931 //----------------------------------------------------------------------
1932
1933 long wxPyGetWinHandle(wxWindow* win) {
1934
1935 #ifdef __WXMSW__
1936     return (long)win->GetHandle();
1937 #endif
1938
1939 #if defined(__WXGTK__) || defined(__WXX11)
1940     return (long)GetXWindow(win);
1941 #endif
1942
1943 #ifdef __WXMAC__
1944     //return (long)MAC_WXHWND(win->MacGetTopLevelWindowRef());
1945     return (long)win->GetHandle();
1946 #endif
1947
1948     return 0;
1949 }
1950
1951 //----------------------------------------------------------------------
1952 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1953 // included in every file over and over again...
1954
1955 wxString* wxString_in_helper(PyObject* source) {
1956     wxString* target = NULL;
1957
1958     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1959         PyErr_SetString(PyExc_TypeError, "String or Unicode type required");
1960         return NULL;
1961     }
1962 #if wxUSE_UNICODE
1963     PyObject* uni = source;
1964     if (PyString_Check(source)) {
1965         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
1966         if (PyErr_Occurred()) return NULL;
1967     }
1968     target = new wxString();
1969     size_t len = PyUnicode_GET_SIZE(uni);
1970     if (len) {
1971         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target->GetWriteBuf(len), len);
1972         target->UngetWriteBuf(len);
1973     }
1974
1975     if (PyString_Check(source))
1976         Py_DECREF(uni);
1977 #else
1978     // Convert to a string object if it isn't already, then to wxString
1979     PyObject* str = source;
1980     if (PyUnicode_Check(source)) {
1981         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
1982         if (PyErr_Occurred()) return NULL;
1983     }
1984     else if (!PyString_Check(source)) {
1985         str = PyObject_Str(source);
1986         if (PyErr_Occurred()) return NULL;
1987     }
1988     char* tmpPtr; int tmpSize;
1989     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1990     target = new wxString(tmpPtr, tmpSize);
1991
1992     if (!PyString_Check(source))
1993         Py_DECREF(str);
1994 #endif // wxUSE_UNICODE
1995
1996     return target;
1997 }
1998
1999
2000 // Similar to above except doesn't use "new" and doesn't set an exception
2001 wxString Py2wxString(PyObject* source)
2002 {
2003     wxString target;
2004
2005 #if wxUSE_UNICODE
2006     // Convert to a unicode object, if not already, then to a wxString
2007     PyObject* uni = source;
2008     if (!PyUnicode_Check(source)) {
2009         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
2010         if (PyErr_Occurred()) return wxEmptyString;  // TODO:  should we PyErr_Clear?
2011     }
2012     size_t len = PyUnicode_GET_SIZE(uni);
2013     if (len) {
2014         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target.GetWriteBuf(len), len);
2015         target.UngetWriteBuf();
2016     }
2017
2018     if (!PyUnicode_Check(source))
2019         Py_DECREF(uni);
2020 #else
2021     // Convert to a string object if it isn't already, then to wxString
2022     PyObject* str = source;
2023     if (PyUnicode_Check(source)) {
2024         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
2025         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
2026     }
2027     else if (!PyString_Check(source)) {
2028         str = PyObject_Str(source);
2029         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
2030     }
2031     char* tmpPtr; int tmpSize;
2032     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
2033     target = wxString(tmpPtr, tmpSize);
2034
2035     if (!PyString_Check(source))
2036         Py_DECREF(str);
2037 #endif // wxUSE_UNICODE
2038
2039     return target;
2040 }
2041
2042
2043 // Make either a Python String or Unicode object, depending on build mode
2044 PyObject* wx2PyString(const wxString& src)
2045 {
2046     PyObject* str;
2047 #if wxUSE_UNICODE
2048     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
2049 #else
2050     str = PyString_FromStringAndSize(src.c_str(), src.Len());
2051 #endif
2052     return str;
2053 }
2054
2055
2056
2057 void wxSetDefaultPyEncoding(const char* encoding)
2058 {
2059     strncpy(wxPyDefaultEncoding, encoding, DEFAULTENCODING_SIZE);
2060 }
2061
2062 const char* wxGetDefaultPyEncoding()
2063 {
2064     return wxPyDefaultEncoding;
2065 }
2066
2067 //----------------------------------------------------------------------
2068
2069
2070 byte* byte_LIST_helper(PyObject* source) {
2071     if (!PyList_Check(source)) {
2072         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2073         return NULL;
2074     }
2075     int count = PyList_Size(source);
2076     byte* temp = new byte[count];
2077     if (! temp) {
2078         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2079         return NULL;
2080     }
2081     for (int x=0; x<count; x++) {
2082         PyObject* o = PyList_GetItem(source, x);
2083         if (! PyInt_Check(o)) {
2084             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2085             return NULL;
2086         }
2087         temp[x] = (byte)PyInt_AsLong(o);
2088     }
2089     return temp;
2090 }
2091
2092
2093 int* int_LIST_helper(PyObject* source) {
2094     if (!PyList_Check(source)) {
2095         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2096         return NULL;
2097     }
2098     int count = PyList_Size(source);
2099     int* temp = new int[count];
2100     if (! temp) {
2101         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2102         return NULL;
2103     }
2104     for (int x=0; x<count; x++) {
2105         PyObject* o = PyList_GetItem(source, x);
2106         if (! PyInt_Check(o)) {
2107             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2108             return NULL;
2109         }
2110         temp[x] = PyInt_AsLong(o);
2111     }
2112     return temp;
2113 }
2114
2115
2116 long* long_LIST_helper(PyObject* source) {
2117     if (!PyList_Check(source)) {
2118         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2119         return NULL;
2120     }
2121     int count = PyList_Size(source);
2122     long* temp = new long[count];
2123     if (! temp) {
2124         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2125         return NULL;
2126     }
2127     for (int x=0; x<count; x++) {
2128         PyObject* o = PyList_GetItem(source, x);
2129         if (! PyInt_Check(o)) {
2130             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2131             return NULL;
2132         }
2133         temp[x] = PyInt_AsLong(o);
2134     }
2135     return temp;
2136 }
2137
2138
2139 char** string_LIST_helper(PyObject* source) {
2140     if (!PyList_Check(source)) {
2141         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2142         return NULL;
2143     }
2144     int count = PyList_Size(source);
2145     char** temp = new char*[count];
2146     if (! temp) {
2147         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2148         return NULL;
2149     }
2150     for (int x=0; x<count; x++) {
2151         PyObject* o = PyList_GetItem(source, x);
2152         if (! PyString_Check(o)) {
2153             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2154             return NULL;
2155         }
2156         temp[x] = PyString_AsString(o);
2157     }
2158     return temp;
2159 }
2160
2161 //--------------------------------
2162 // Part of patch from Tim Hochberg
2163 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
2164     if (PyInt_Check(o1) && PyInt_Check(o2)) {
2165         point->x = PyInt_AS_LONG(o1);
2166         point->y = PyInt_AS_LONG(o2);
2167         return true;
2168     }
2169     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
2170         point->x = (int)PyFloat_AS_DOUBLE(o1);
2171         point->y = (int)PyFloat_AS_DOUBLE(o2);
2172         return true;
2173     }
2174     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
2175         // Disallow instances because they can cause havok
2176         return false;
2177     }
2178     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
2179         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
2180         point->x = PyInt_AsLong(o1);
2181         point->y = PyInt_AsLong(o2);
2182         return true;
2183     }
2184     return false;
2185 }
2186
2187
2188 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
2189     // Putting all of the declarations here allows
2190     // us to put the error handling all in one place.
2191     int x;
2192     wxPoint* temp;
2193     PyObject *o, *o1, *o2;
2194     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2195
2196     if (!PySequence_Check(source)) {
2197         goto error0;
2198     }
2199
2200     // The length of the sequence is returned in count.
2201     *count = PySequence_Length(source);
2202     if (*count < 0) {
2203         goto error0;
2204     }
2205
2206     temp = new wxPoint[*count];
2207     if (!temp) {
2208         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2209         return NULL;
2210     }
2211     for (x=0; x<*count; x++) {
2212         // Get an item: try fast way first.
2213         if (isFast) {
2214             o = PySequence_Fast_GET_ITEM(source, x);
2215         }
2216         else {
2217             o = PySequence_GetItem(source, x);
2218             if (o == NULL) {
2219                 goto error1;
2220             }
2221         }
2222
2223         // Convert o to wxPoint.
2224         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
2225             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
2226             o1 = PySequence_Fast_GET_ITEM(o, 0);
2227             o2 = PySequence_Fast_GET_ITEM(o, 1);
2228             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2229                 goto error2;
2230             }
2231         }
2232         else if (wxPySwigInstance_Check(o)) {
2233             wxPoint* pt;
2234             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
2235                 goto error2;
2236             }
2237             temp[x] = *pt;
2238         }
2239         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
2240             o1 = PySequence_GetItem(o, 0);
2241             o2 = PySequence_GetItem(o, 1);
2242             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2243                 goto error3;
2244             }
2245             Py_DECREF(o1);
2246             Py_DECREF(o2);
2247         }
2248         else {
2249             goto error2;
2250         }
2251         // Clean up.
2252         if (!isFast)
2253             Py_DECREF(o);
2254     }
2255     return temp;
2256
2257 error3:
2258     Py_DECREF(o1);
2259     Py_DECREF(o2);
2260 error2:
2261     if (!isFast)
2262         Py_DECREF(o);
2263 error1:
2264     delete [] temp;
2265 error0:
2266     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2267     return NULL;
2268 }
2269 // end of patch
2270 //------------------------------
2271
2272
2273 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2274     if (!PyList_Check(source)) {
2275         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2276         return NULL;
2277     }
2278     int count = PyList_Size(source);
2279     wxBitmap** temp = new wxBitmap*[count];
2280     if (! temp) {
2281         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2282         return NULL;
2283     }
2284     for (int x=0; x<count; x++) {
2285         PyObject* o = PyList_GetItem(source, x);
2286         if (wxPySwigInstance_Check(o)) {
2287             wxBitmap*    pt;
2288             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2289                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2290                 return NULL;
2291             }
2292             temp[x] = pt;
2293         }
2294         else {
2295             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2296             return NULL;
2297         }
2298     }
2299     return temp;
2300 }
2301
2302
2303
2304 wxString* wxString_LIST_helper(PyObject* source) {
2305     if (!PyList_Check(source)) {
2306         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2307         return NULL;
2308     }
2309     int count = PyList_Size(source);
2310     wxString* temp = new wxString[count];
2311     if (! temp) {
2312         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2313         return NULL;
2314     }
2315     for (int x=0; x<count; x++) {
2316         PyObject* o = PyList_GetItem(source, x);
2317 #if PYTHON_API_VERSION >= 1009
2318         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2319             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2320             return NULL;
2321         }
2322 #else
2323         if (! PyString_Check(o)) {
2324             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2325             return NULL;
2326         }
2327 #endif
2328
2329         wxString* pStr = wxString_in_helper(o);
2330         temp[x] = *pStr;
2331         delete pStr;
2332     }
2333     return temp;
2334 }
2335
2336
2337 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2338     if (!PyList_Check(source)) {
2339         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2340         return NULL;
2341     }
2342     int count                = PyList_Size(source);
2343     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2344     if (! temp) {
2345         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2346         return NULL;
2347     }
2348     for (int x=0; x<count; x++) {
2349         PyObject* o = PyList_GetItem(source, x);
2350         if (wxPySwigInstance_Check(o)) {
2351             wxAcceleratorEntry* ae;
2352             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2353                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2354                 return NULL;
2355             }
2356             temp[x] = *ae;
2357         }
2358         else if (PyTuple_Check(o)) {
2359             PyObject* o1 = PyTuple_GetItem(o, 0);
2360             PyObject* o2 = PyTuple_GetItem(o, 1);
2361             PyObject* o3 = PyTuple_GetItem(o, 2);
2362             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2363         }
2364         else {
2365             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2366             return NULL;
2367         }
2368     }
2369     return temp;
2370 }
2371
2372
2373 wxPen** wxPen_LIST_helper(PyObject* source) {
2374     if (!PyList_Check(source)) {
2375         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2376         return NULL;
2377     }
2378     int count = PyList_Size(source);
2379     wxPen** temp = new wxPen*[count];
2380     if (!temp) {
2381         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2382         return NULL;
2383     }
2384     for (int x=0; x<count; x++) {
2385         PyObject* o = PyList_GetItem(source, x);
2386         if (wxPySwigInstance_Check(o)) {
2387             wxPen*  pt;
2388             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2389                 delete temp;
2390                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2391                 return NULL;
2392             }
2393             temp[x] = pt;
2394         }
2395         else {
2396             delete temp;
2397             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2398             return NULL;
2399         }
2400     }
2401     return temp;
2402 }
2403
2404
2405 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2406     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2407     PyObject *o1, *o2;
2408
2409     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2410         return false;
2411
2412     if (isFast) {
2413         o1 = PySequence_Fast_GET_ITEM(source, 0);
2414         o2 = PySequence_Fast_GET_ITEM(source, 1);
2415     }
2416     else {
2417         o1 = PySequence_GetItem(source, 0);
2418         o2 = PySequence_GetItem(source, 1);
2419     }
2420
2421     *i1 = PyInt_AsLong(o1);
2422     *i2 = PyInt_AsLong(o2);
2423
2424     if (! isFast) {
2425         Py_DECREF(o1);
2426         Py_DECREF(o2);
2427     }
2428     return true;
2429 }
2430
2431
2432 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2433     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2434     PyObject *o1, *o2, *o3, *o4;
2435
2436     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2437         return false;
2438
2439     if (isFast) {
2440         o1 = PySequence_Fast_GET_ITEM(source, 0);
2441         o2 = PySequence_Fast_GET_ITEM(source, 1);
2442         o3 = PySequence_Fast_GET_ITEM(source, 2);
2443         o4 = PySequence_Fast_GET_ITEM(source, 3);
2444     }
2445     else {
2446         o1 = PySequence_GetItem(source, 0);
2447         o2 = PySequence_GetItem(source, 1);
2448         o3 = PySequence_GetItem(source, 2);
2449         o4 = PySequence_GetItem(source, 3);
2450     }
2451
2452     *i1 = PyInt_AsLong(o1);
2453     *i2 = PyInt_AsLong(o2);
2454     *i3 = PyInt_AsLong(o3);
2455     *i4 = PyInt_AsLong(o4);
2456
2457     if (! isFast) {
2458         Py_DECREF(o1);
2459         Py_DECREF(o2);
2460         Py_DECREF(o3);
2461         Py_DECREF(o4);
2462     }
2463     return true;
2464 }
2465
2466
2467 //----------------------------------------------------------------------
2468
2469 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2470 {
2471     void* ptr;
2472
2473     if (wxPySwigInstance_Check(source) &&
2474         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2475         return true;
2476
2477     PyErr_Clear();
2478     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2479         return true;
2480
2481     return false;
2482 }
2483
2484 bool wxSize_helper(PyObject* source, wxSize** obj)
2485 {
2486     if (source == Py_None) {
2487         **obj = wxSize(-1,-1);
2488         return true;
2489     }
2490     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2491 }
2492
2493
2494 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2495 {
2496     if (source == Py_None) {
2497         **obj = wxPoint(-1,-1);
2498         return true;
2499     }
2500     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2501 }
2502
2503
2504
2505 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2506
2507     if (source == Py_None) {
2508         **obj = wxRealPoint(-1,-1);
2509         return true;
2510     }
2511
2512     // If source is an object instance then it may already be the right type
2513     if (wxPySwigInstance_Check(source)) {
2514         wxRealPoint* ptr;
2515         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2516             goto error;
2517         *obj = ptr;
2518         return true;
2519     }
2520     // otherwise a 2-tuple of floats is expected
2521     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2522         PyObject* o1 = PySequence_GetItem(source, 0);
2523         PyObject* o2 = PySequence_GetItem(source, 1);
2524         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2525             Py_DECREF(o1);
2526             Py_DECREF(o2);
2527             goto error;
2528         }
2529         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2530         Py_DECREF(o1);
2531         Py_DECREF(o2);
2532         return true;
2533     }
2534
2535  error:
2536     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2537     return false;
2538 }
2539
2540
2541
2542 bool wxRect_helper(PyObject* source, wxRect** obj) {
2543
2544     if (source == Py_None) {
2545         **obj = wxRect(-1,-1,-1,-1);
2546         return true;
2547     }
2548
2549     // If source is an object instance then it may already be the right type
2550     if (wxPySwigInstance_Check(source)) {
2551         wxRect* ptr;
2552         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2553             goto error;
2554         *obj = ptr;
2555         return true;
2556     }
2557     // otherwise a 4-tuple of integers is expected
2558     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2559         PyObject* o1 = PySequence_GetItem(source, 0);
2560         PyObject* o2 = PySequence_GetItem(source, 1);
2561         PyObject* o3 = PySequence_GetItem(source, 2);
2562         PyObject* o4 = PySequence_GetItem(source, 3);
2563         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2564             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2565             Py_DECREF(o1);
2566             Py_DECREF(o2);
2567             Py_DECREF(o3);
2568             Py_DECREF(o4);
2569             goto error;
2570         }
2571         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2572                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2573         Py_DECREF(o1);
2574         Py_DECREF(o2);
2575         Py_DECREF(o3);
2576         Py_DECREF(o4);
2577         return true;
2578     }
2579
2580  error:
2581     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2582     return false;
2583 }
2584
2585
2586
2587 bool wxColour_helper(PyObject* source, wxColour** obj) {
2588
2589     if (source == Py_None) {
2590         **obj = wxNullColour;
2591         return true;
2592     }
2593
2594     // If source is an object instance then it may already be the right type
2595     if (wxPySwigInstance_Check(source)) {
2596         wxColour* ptr;
2597         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2598             goto error;
2599         *obj = ptr;
2600         return true;
2601     }
2602     // otherwise check for a string
2603     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2604         wxString spec = Py2wxString(source);
2605         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2606             long red, green, blue;
2607             red = green = blue = 0;
2608             spec.Mid(1,2).ToLong(&red,   16);
2609             spec.Mid(3,2).ToLong(&green, 16);
2610             spec.Mid(5,2).ToLong(&blue,  16);
2611
2612             **obj = wxColour(red, green, blue);
2613             return true;
2614         }
2615         else {                                       // it's a colour name
2616             **obj = wxColour(spec);
2617             return true;
2618         }
2619     }
2620     // last chance: 3-tuple of integers is expected
2621     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2622         PyObject* o1 = PySequence_GetItem(source, 0);
2623         PyObject* o2 = PySequence_GetItem(source, 1);
2624         PyObject* o3 = PySequence_GetItem(source, 2);
2625         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2626             Py_DECREF(o1);
2627             Py_DECREF(o2);
2628             Py_DECREF(o3);
2629             goto error;
2630         }
2631         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2632         Py_DECREF(o1);
2633         Py_DECREF(o2);
2634         Py_DECREF(o3);
2635         return true;
2636     }
2637
2638  error:
2639     PyErr_SetString(PyExc_TypeError,
2640                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2641     return false;
2642 }
2643
2644
2645 bool wxColour_typecheck(PyObject* source) {
2646
2647     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2648         return true;
2649
2650     if (PyString_Check(source) || PyUnicode_Check(source))
2651         return true;
2652
2653     return false;
2654 }
2655
2656
2657
2658 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2659
2660     if (source == Py_None) {
2661         **obj = wxPoint2D(-1,-1);
2662         return true;
2663     }
2664
2665     // If source is an object instance then it may already be the right type
2666     if (wxPySwigInstance_Check(source)) {
2667         wxPoint2D* ptr;
2668         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2669             goto error;
2670         *obj = ptr;
2671         return true;
2672     }
2673     // otherwise a length-2 sequence of floats is expected
2674     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2675         PyObject* o1 = PySequence_GetItem(source, 0);
2676         PyObject* o2 = PySequence_GetItem(source, 1);
2677         // This should really check for floats, not numbers -- but that would break code.
2678         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2679             Py_DECREF(o1);
2680             Py_DECREF(o2);
2681             goto error;
2682         }
2683         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2684         Py_DECREF(o1);
2685         Py_DECREF(o2);
2686         return true;
2687     }
2688  error:
2689     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2690     return false;
2691 }
2692
2693
2694 //----------------------------------------------------------------------
2695
2696 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2697
2698     PyObject* list = PyList_New(0);
2699     for (size_t i=0; i < arr.GetCount(); i++) {
2700 #if wxUSE_UNICODE
2701         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2702 #else
2703         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2704 #endif
2705         PyList_Append(list, str);
2706         Py_DECREF(str);
2707     }
2708     return list;
2709 }
2710
2711
2712 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2713
2714     PyObject* list = PyList_New(0);
2715     for (size_t i=0; i < arr.GetCount(); i++) {
2716         PyObject* number = PyInt_FromLong(arr[i]);
2717         PyList_Append(list, number);
2718         Py_DECREF(number);
2719     }
2720     return list;
2721 }
2722
2723
2724 //----------------------------------------------------------------------
2725 //----------------------------------------------------------------------
2726
2727
2728
2729