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
 707 // The stock objects are no longer created when the wx._core_ module is
 708 // imported, but only after the app object has been created.  The
 709 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 710 // objects though various stages of evolution:
 711 //
 712 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 713 //           object will be created (otherwise SWIG will just use None.)
 714 //
 715 //   pass 2: After the module has been imported and the python proxys have
 716 //           been created, then set the __class__ to be _wxPyUnbornObject so
 717 //           it will catch any access to the object and will raise an exception.
 718 //
 719 //   pass 3: Finally, from BootstrapApp patch things up so the stock objects
 720 //           can be used.
 721
 722
 723 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 724 {
 725     wxPy_ReinitStockObjects(2);
 726     RETURN_NONE();
 727 }
 728
 729
 730 static void rsoPass2(const char* name)
 731 {
 732     static PyObject* unbornObjectClass = NULL;
 733     PyObject* obj;
 734
 735     if (unbornObjectClass == NULL) {
 736         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 737         Py_INCREF(unbornObjectClass);
 738     }
 739
 740     // Find the object instance
 741     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 742     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 743     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 744
 745     // Change its class
 746     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 747
 748 }
 749
 750 static void rsoPass3(const char* name, const char* classname, void* ptr)
 751 {
 752     PyObject* obj;
 753     PyObject* classobj;
 754     PyObject* ptrobj;
 755
 756     // Find the object instance
 757     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 758     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 759     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 760
 761     // Find the class object and put it back in the instance
 762     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 763     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 764     PyObject_SetAttrString(obj, "__class__",  classobj);
 765
 766     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 767     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 768     PyObject_SetAttrString(obj, "this", ptrobj);
 769     Py_DECREF(ptrobj);
 770 }
 771
 772
 773
 774 void wxPy_ReinitStockObjects(int pass)
 775 {
 776
 777     // If there is already an App object then wxPython is probably embedded in
 778     // a wx C++ application, so there is no need to do all this.
 779     static bool embedded = false;
 780     if ((pass == 1 || pass == 2) && wxTheApp) {
 781         embedded = true;
 782         return;
 783     }
 784     if (pass == 3 && embedded)
 785         return;
 786
 787
 788 #define REINITOBJ(name, classname) \
 789     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 790     else if (pass == 2) { rsoPass2(#name); } \
 791     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 792
 793
 794 #define REINITOBJ2(name, classname) \
 795     if (pass == 1) { } \
 796     else if (pass == 2) { rsoPass2(#name); } \
 797     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 798
 799
 800     REINITOBJ(wxNORMAL_FONT, wxFont);
 801     REINITOBJ(wxSMALL_FONT, wxFont);
 802     REINITOBJ(wxITALIC_FONT, wxFont);
 803     REINITOBJ(wxSWISS_FONT, wxFont);
 804
 805     REINITOBJ(wxRED_PEN, wxPen);
 806     REINITOBJ(wxCYAN_PEN, wxPen);
 807     REINITOBJ(wxGREEN_PEN, wxPen);
 808     REINITOBJ(wxBLACK_PEN, wxPen);
 809     REINITOBJ(wxWHITE_PEN, wxPen);
 810     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 811     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 812     REINITOBJ(wxGREY_PEN, wxPen);
 813     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 814     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 815
 816     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 817     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 818     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 819     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 820     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 821     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 822     REINITOBJ(wxRED_BRUSH, wxBrush);
 823     REINITOBJ(wxGREY_BRUSH, wxBrush);
 824     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 825     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 826
 827     REINITOBJ(wxBLACK, wxColour);
 828     REINITOBJ(wxWHITE, wxColour);
 829     REINITOBJ(wxRED, wxColour);
 830     REINITOBJ(wxBLUE, wxColour);
 831     REINITOBJ(wxGREEN, wxColour);
 832     REINITOBJ(wxCYAN, wxColour);
 833     REINITOBJ(wxLIGHT_GREY, wxColour);
 834
 835     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 836     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 837     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 838
 839     REINITOBJ2(wxNullBitmap, wxBitmap);
 840     REINITOBJ2(wxNullIcon, wxIcon);
 841     REINITOBJ2(wxNullCursor, wxCursor);
 842     REINITOBJ2(wxNullPen, wxPen);
 843     REINITOBJ2(wxNullBrush, wxBrush);
 844     REINITOBJ2(wxNullPalette, wxPalette);
 845     REINITOBJ2(wxNullFont, wxFont);
 846     REINITOBJ2(wxNullColour, wxColour);
 847
 848     REINITOBJ(wxTheFontList, wxFontList);
 849     REINITOBJ(wxThePenList, wxPenList);
 850     REINITOBJ(wxTheBrushList, wxBrushList);
 851     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 852
 853
 854     REINITOBJ2(wxDefaultValidator, wxValidator);
 855     REINITOBJ2(wxNullImage, wxImage);
 856     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 857
 858 #undef REINITOBJ
 859 #undef REINITOBJ2
 860 }
 861
 862 //---------------------------------------------------------------------------
 863
 864 // Check for existence of a wxApp, setting an exception if there isn't one.
 865 // This doesn't need to aquire the GIL because it should only be called from
 866 // an %exception before the lock is released.
 867
 868 bool wxPyCheckForApp() {
 869     if (wxTheApp != NULL)
 870         return true;
 871     else {
 872         PyErr_SetString(wxPyNoAppError, "The wx.App object must be created first!");
 873         return false;
 874     }
 875 }
 876
 877 //---------------------------------------------------------------------------
 878
 879 void wxPyUserData_dtor(wxPyUserData* self) {
 880     if (! wxPyDoingCleanup) {
 881         wxPyBlock_t blocked = wxPyBeginBlockThreads();
 882         Py_DECREF(self->m_obj);
 883         self->m_obj = NULL;
 884         wxPyEndBlockThreads(blocked);
 885     }
 886 }
 887
 888
 889 void wxPyClientData_dtor(wxPyClientData* self) {
 890     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 891                                         // may have already garbage collected the object...
 892         if (self->m_incRef) {
 893             wxPyBlock_t blocked = wxPyBeginBlockThreads();
 894             Py_DECREF(self->m_obj);
 895             wxPyEndBlockThreads(blocked);
 896         }
 897         self->m_obj = NULL;
 898     }
 899 }
 900
 901
 902
 903 // This is called when an OOR controled object is being destroyed.  Although
 904 // the C++ object is going away there is no way to force the Python object
 905 // (and all references to it) to die too.  This causes problems (crashes) in
 906 // wxPython when a python shadow object attempts to call a C++ method using
 907 // the now bogus pointer... So to try and prevent this we'll do a little black
 908 // magic and change the class of the python instance to a class that will
 909 // raise an exception for any attempt to call methods with it.  See
 910 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 911 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 912
 913     static PyObject* deadObjectClass = NULL;
 914
 915     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 916     if (deadObjectClass == NULL) {
 917         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 918         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 919         // will lead to a deadlock when it tries to aquire the GIL again.
 920         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 921         Py_INCREF(deadObjectClass);
 922     }
 923
 924
 925     // Only if there is more than one reference to the object and we are
 926     // holding the OOR reference:
 927     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 && self->m_incRef) {
 928         // bool isInstance = wxPyInstance_Check(self->m_obj);
 929         // TODO same here
 930         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 931
 932         // Call __del__, if there is one.
 933         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 934         if (func) {
 935             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 936             Py_XDECREF(rv);
 937             Py_DECREF(func);
 938         }
 939         if (PyErr_Occurred())
 940             PyErr_Clear();      // just ignore it for now
 941
 942
 943         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 944         if (dict) {
 945             // Clear the instance's dictionary
 946             PyDict_Clear(dict);
 947
 948             // put the name of the old class into the instance, and then reset the
 949             // class to be the dead class.
 950             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 951             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 952             PyDict_SetItemString(dict, "_name", name);
 953             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 954             //Py_INCREF(deadObjectClass);
 955             Py_DECREF(klass);
 956             Py_DECREF(name);
 957         }
 958     }
 959
 960     // m_obj is DECREF'd in the base class dtor...
 961     wxPyEndBlockThreads(blocked);
 962 }
 963
 964
 965 //---------------------------------------------------------------------------
 966 // Stuff used by OOR to find the right wxPython class type to return and to
 967 // build it.
 968
 969
 970 // The pointer type map is used when the "pointer" type name generated by SWIG
 971 // is not the same as the shadow class name, for example wxPyTreeCtrl
 972 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 973 // so we'll just make it a Python dictionary in the wx module's namespace.
 974 // (See __wxSetDictionary)
 975 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 976     if (! wxPyPtrTypeMap)
 977         wxPyPtrTypeMap = PyDict_New();
 978     PyDict_SetItemString(wxPyPtrTypeMap,
 979                          (char*)commonName,
 980                          PyString_FromString((char*)ptrName));
 981 }
 982
 983
 984
 985
 986 PyObject*  wxPyMake_wxObject(wxObject* source, bool setThisOwn, bool checkEvtHandler) {
 987     PyObject* target = NULL;
 988     bool      isEvtHandler = false;
 989     bool      isSizer = false;
 990
 991     if (source) {
 992         // If it's derived from wxEvtHandler then there may
 993         // already be a pointer to a Python object that we can use
 994         // in the OOR data.
 995         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 996             isEvtHandler = true;
 997             wxEvtHandler* eh = (wxEvtHandler*)source;
 998             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 999             if (data) {
1000                 target = data->m_obj;
1001                 if (target)
1002                     Py_INCREF(target);
1003             }
1004         }
1005
1006         // Also check for wxSizer
1007         if (!target && wxIsKindOf(source, wxSizer)) {
1008             isSizer = true;
1009             wxSizer* sz = (wxSizer*)source;
1010             wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
1011             if (data) {
1012                 target = data->m_obj;
1013                 if (target)
1014                     Py_INCREF(target);
1015             }
1016         }
1017
1018         if (! target) {
1019             // Otherwise make it the old fashioned way by making a new shadow
1020             // object and putting this pointer in it.  Look up the class
1021             // heirarchy until we find a class name that is located in the
1022             // python module.
1023             const wxClassInfo* info   = source->GetClassInfo();
1024             wxString           name   = info->GetClassName();
1025             bool               exists = wxPyCheckSwigType(name);
1026             while (info && !exists) {
1027                 info = info->GetBaseClass1();
1028                 name = info->GetClassName();
1029                 exists = wxPyCheckSwigType(name);
1030             }
1031             if (info) {
1032                 target = wxPyConstructObject((void*)source, name, setThisOwn);
1033                 if (target && isEvtHandler)
1034                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
1035                 if (target && isSizer)
1036                     ((wxSizer*)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
1053     return wxPyMake_wxObject(source, setThisOwn);
1054 }
1055
1056
1057 //---------------------------------------------------------------------------
1058
1059
1060 #ifdef WXP_WITH_THREAD
1061 #if !wxPyUSE_GIL_STATE
1062
1063 inline
1064 unsigned long wxPyGetCurrentThreadId() {
1065     return wxThread::GetCurrentId();
1066 }
1067
1068 static wxPyThreadState gs_shutdownTState;
1069
1070 static
1071 wxPyThreadState* wxPyGetThreadState() {
1072     if (wxPyTMutex == NULL) // Python is shutting down...
1073         return &gs_shutdownTState;
1074
1075     unsigned long ctid = wxPyGetCurrentThreadId();
1076     wxPyThreadState* tstate = NULL;
1077
1078     wxPyTMutex->Lock();
1079     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1080         wxPyThreadState& info = wxPyTStates->Item(i);
1081         if (info.tid == ctid) {
1082             tstate = &info;
1083             break;
1084         }
1085     }
1086     wxPyTMutex->Unlock();
1087     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
1088     return tstate;
1089 }
1090
1091
1092 static
1093 void wxPySaveThreadState(PyThreadState* tstate) {
1094     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
1095         gs_shutdownTState.tstate = tstate;
1096         return;
1097     }
1098     unsigned long ctid = wxPyGetCurrentThreadId();
1099     wxPyTMutex->Lock();
1100     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1101         wxPyThreadState& info = wxPyTStates->Item(i);
1102         if (info.tid == ctid) {
1103 #if 0
1104             if (info.tstate != tstate)
1105                 wxLogMessage("*** tstate mismatch!???");
1106 #endif
1107             info.tstate = tstate;    // allow for transient tstates
1108             // Normally it will never change, but apparently COM callbacks
1109             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
1110             // tstate which will then be garbage the next time we try to use
1111             // it...
1112
1113             wxPyTMutex->Unlock();
1114             return;
1115         }
1116     }
1117     // not found, so add it...
1118     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
1119     wxPyTMutex->Unlock();
1120 }
1121
1122 #endif
1123 #endif
1124
1125
1126
1127 // Calls from Python to wxWindows code are wrapped in calls to these
1128 // functions:
1129
1130 PyThreadState* wxPyBeginAllowThreads() {
1131 #ifdef WXP_WITH_THREAD
1132     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
1133 #if !wxPyUSE_GIL_STATE
1134     wxPySaveThreadState(saved);
1135 #endif
1136     return saved;
1137 #else
1138     return NULL;
1139 #endif
1140 }
1141
1142 void wxPyEndAllowThreads(PyThreadState* saved) {
1143 #ifdef WXP_WITH_THREAD
1144     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
1145 #endif
1146 }
1147
1148
1149
1150 // Calls from wxWindows back to Python code, or even any PyObject
1151 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
1152
1153 wxPyBlock_t wxPyBeginBlockThreads() {
1154 #ifdef WXP_WITH_THREAD
1155     if (! Py_IsInitialized()) {
1156         return (wxPyBlock_t)0;
1157     }
1158 #if wxPyUSE_GIL_STATE
1159     PyGILState_STATE state = PyGILState_Ensure();
1160     return state;
1161 #else
1162     PyThreadState *current = _PyThreadState_Current;
1163
1164     // Only block if there wasn't already a tstate, or if the current one is
1165     // not the one we are wanting to change to.  This should prevent deadlock
1166     // if there are nested calls to wxPyBeginBlockThreads
1167     wxPyBlock_t blocked = false;
1168     wxPyThreadState* tstate = wxPyGetThreadState();
1169     if (current != tstate->tstate) {
1170         PyEval_RestoreThread(tstate->tstate);
1171         blocked = true;
1172     }
1173     return blocked;
1174 #endif
1175 #else
1176     return (wxPyBlock_t)0;
1177 #endif
1178 }
1179
1180
1181 void wxPyEndBlockThreads(wxPyBlock_t blocked) {
1182 #ifdef WXP_WITH_THREAD
1183     if (! Py_IsInitialized()) {
1184         return;
1185     }
1186 #if wxPyUSE_GIL_STATE
1187     PyGILState_Release(blocked);
1188 #else
1189     // Only unblock if we blocked in the last call to wxPyBeginBlockThreads.
1190     // The value of blocked passed in needs to be the same as that returned
1191     // from wxPyBeginBlockThreads at the same nesting level.
1192     if ( blocked ) {
1193         PyEval_SaveThread();
1194     }
1195 #endif
1196 #endif
1197 }
1198
1199
1200 //---------------------------------------------------------------------------
1201 // wxPyInputStream and wxPyCBInputStream methods
1202
1203
1204 void wxPyInputStream::close() {
1205     /* do nothing for now */
1206 }
1207
1208 void wxPyInputStream::flush() {
1209     /* do nothing for now */
1210 }
1211
1212 bool wxPyInputStream::eof() {
1213     if (m_wxis)
1214         return m_wxis->Eof();
1215     else
1216         return true;
1217 }
1218
1219 wxPyInputStream::~wxPyInputStream() {
1220     if (m_wxis)
1221         delete m_wxis;
1222 }
1223
1224
1225
1226
1227 PyObject* wxPyInputStream::read(int size) {
1228     PyObject* obj = NULL;
1229     wxMemoryBuffer buf;
1230     const int BUFSIZE = 1024;
1231
1232     // check if we have a real wxInputStream to work with
1233     if (!m_wxis) {
1234         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1235         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1236         wxPyEndBlockThreads(blocked);
1237         return NULL;
1238     }
1239
1240     if (size < 0) {
1241         // read while bytes are available on the stream
1242         while ( m_wxis->CanRead() ) {
1243             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1244             buf.UngetAppendBuf(m_wxis->LastRead());
1245         }
1246
1247     } else {  // Read only size number of characters
1248         m_wxis->Read(buf.GetWriteBuf(size), size);
1249         buf.UngetWriteBuf(m_wxis->LastRead());
1250     }
1251
1252     // error check
1253     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1254     wxStreamError err = m_wxis->GetLastError();
1255     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1256         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1257     }
1258     else {
1259         // We use only strings for the streams, not unicode
1260         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1261     }
1262     wxPyEndBlockThreads(blocked);
1263     return obj;
1264 }
1265
1266
1267 PyObject* wxPyInputStream::readline(int size) {
1268     PyObject* obj = NULL;
1269     wxMemoryBuffer buf;
1270     int i;
1271     char ch;
1272
1273     // check if we have a real wxInputStream to work with
1274     if (!m_wxis) {
1275         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1276         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1277         wxPyEndBlockThreads(blocked);
1278         return NULL;
1279     }
1280
1281     // read until \n or byte limit reached
1282     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1283         ch = m_wxis->GetC();
1284         buf.AppendByte(ch);
1285     }
1286
1287     // errorcheck
1288     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1289     wxStreamError err = m_wxis->GetLastError();
1290     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1291         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1292     }
1293     else {
1294         // We use only strings for the streams, not unicode
1295         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1296     }
1297     wxPyEndBlockThreads(blocked);
1298     return obj;
1299 }
1300
1301
1302 PyObject* wxPyInputStream::readlines(int sizehint) {
1303     PyObject* pylist;
1304
1305     // check if we have a real wxInputStream to work with
1306     if (!m_wxis) {
1307         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1308         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1309         wxPyEndBlockThreads(blocked);
1310         return NULL;
1311     }
1312
1313     // init list
1314     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1315     pylist = PyList_New(0);
1316     wxPyEndBlockThreads(blocked);
1317
1318     if (!pylist) {
1319         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1320         PyErr_NoMemory();
1321         wxPyEndBlockThreads(blocked);
1322         return NULL;
1323     }
1324
1325     // read sizehint bytes or until EOF
1326     int i;
1327     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1328         PyObject* s = this->readline();
1329         if (s == NULL) {
1330             wxPyBlock_t blocked = wxPyBeginBlockThreads();
1331             Py_DECREF(pylist);
1332             wxPyEndBlockThreads(blocked);
1333             return NULL;
1334         }
1335         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1336         PyList_Append(pylist, s);
1337         i += PyString_Size(s);
1338         wxPyEndBlockThreads(blocked);
1339     }
1340
1341     // error check
1342     wxStreamError err = m_wxis->GetLastError();
1343     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1344         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1345         Py_DECREF(pylist);
1346         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1347         wxPyEndBlockThreads(blocked);
1348         return NULL;
1349     }
1350
1351     return pylist;
1352 }
1353
1354
1355 void wxPyInputStream::seek(int offset, int whence) {
1356     if (m_wxis)
1357         m_wxis->SeekI(offset, wxSeekMode(whence));
1358 }
1359
1360 int wxPyInputStream::tell(){
1361     if (m_wxis)
1362         return m_wxis->TellI();
1363     else return 0;
1364 }
1365
1366
1367
1368
1369 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1370     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1371 {}
1372
1373 wxPyCBInputStream::wxPyCBInputStream(const wxPyCBInputStream& other)
1374 {
1375     m_read  = other.m_read;
1376     m_seek  = other.m_seek;
1377     m_tell  = other.m_tell;
1378     m_block = other.m_block;
1379     Py_INCREF(m_read);
1380     Py_INCREF(m_seek);
1381     Py_INCREF(m_tell);
1382 }
1383
1384
1385 wxPyCBInputStream::~wxPyCBInputStream() {
1386     wxPyBlock_t blocked;
1387     if (m_block) blocked = wxPyBeginBlockThreads();
1388     Py_XDECREF(m_read);
1389     Py_XDECREF(m_seek);
1390     Py_XDECREF(m_tell);
1391     if (m_block) wxPyEndBlockThreads(blocked);
1392 }
1393
1394
1395 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1396     wxPyBlock_t blocked;
1397     if (block) blocked = wxPyBeginBlockThreads();
1398
1399     PyObject* read = getMethod(py, "read");
1400     PyObject* seek = getMethod(py, "seek");
1401     PyObject* tell = getMethod(py, "tell");
1402
1403     if (!read) {
1404         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1405         Py_XDECREF(read);
1406         Py_XDECREF(seek);
1407         Py_XDECREF(tell);
1408         if (block) wxPyEndBlockThreads(blocked);
1409         return NULL;
1410     }
1411
1412     if (block) wxPyEndBlockThreads(blocked);
1413     return new wxPyCBInputStream(read, seek, tell, block);
1414 }
1415
1416
1417 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1418     return wxPyCBInputStream::create(py, block);
1419 }
1420
1421 wxPyCBInputStream* wxPyCBInputStream_copy(wxPyCBInputStream* other) {
1422     return new wxPyCBInputStream(*other);
1423 }
1424
1425 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1426     if (!PyObject_HasAttrString(py, name))
1427         return NULL;
1428     PyObject* o = PyObject_GetAttrString(py, name);
1429     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1430         Py_DECREF(o);
1431         return NULL;
1432     }
1433     return o;
1434 }
1435
1436
1437 wxFileOffset wxPyCBInputStream::GetLength() const {
1438     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1439     if (m_seek && m_tell) {
1440         wxFileOffset temp = self->OnSysTell();
1441         wxFileOffset ret = self->OnSysSeek(0, wxFromEnd);
1442         self->OnSysSeek(temp, wxFromStart);
1443         return ret;
1444     }
1445     else
1446         return wxInvalidOffset;
1447 }
1448
1449
1450 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1451     if (bufsize == 0)
1452         return 0;
1453
1454     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1455     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1456     PyObject* result = PyEval_CallObject(m_read, arglist);
1457     Py_DECREF(arglist);
1458
1459     size_t o = 0;
1460     if ((result != NULL) && PyString_Check(result)) {
1461         o = PyString_Size(result);
1462         if (o == 0)
1463             m_lasterror = wxSTREAM_EOF;
1464         if (o > bufsize)
1465             o = bufsize;
1466         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1467         Py_DECREF(result);
1468
1469     }
1470     else
1471         m_lasterror = wxSTREAM_READ_ERROR;
1472     wxPyEndBlockThreads(blocked);
1473     return o;
1474 }
1475
1476 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1477     m_lasterror = wxSTREAM_WRITE_ERROR;
1478     return 0;
1479 }
1480
1481
1482 wxFileOffset wxPyCBInputStream::OnSysSeek(wxFileOffset off, wxSeekMode mode) {
1483     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1484     PyObject* arglist = PyTuple_New(2);
1485
1486     if (sizeof(wxFileOffset) > sizeof(long))
1487         // wxFileOffset is a 64-bit value...
1488         PyTuple_SET_ITEM(arglist, 0, PyLong_FromLongLong(off));
1489     else
1490         PyTuple_SET_ITEM(arglist, 0, PyInt_FromLong(off));
1491
1492     PyTuple_SET_ITEM(arglist, 1, PyInt_FromLong(mode));
1493
1494
1495     PyObject* result = PyEval_CallObject(m_seek, arglist);
1496     Py_DECREF(arglist);
1497     Py_XDECREF(result);
1498     wxPyEndBlockThreads(blocked);
1499     return OnSysTell();
1500 }
1501
1502
1503 wxFileOffset wxPyCBInputStream::OnSysTell() const {
1504     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1505     PyObject* arglist = Py_BuildValue("()");
1506     PyObject* result = PyEval_CallObject(m_tell, arglist);
1507     Py_DECREF(arglist);
1508     wxFileOffset o = 0;
1509     if (result != NULL) {
1510         if (PyLong_Check(result))
1511             o = PyLong_AsLongLong(result);
1512         else
1513             o = PyInt_AsLong(result);
1514         Py_DECREF(result);
1515     };
1516     wxPyEndBlockThreads(blocked);
1517     return o;
1518 }
1519
1520 //----------------------------------------------------------------------
1521
1522 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1523
1524 wxPyCallback::wxPyCallback(PyObject* func) {
1525     m_func = func;
1526     Py_INCREF(m_func);
1527 }
1528
1529 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1530     m_func = other.m_func;
1531     Py_INCREF(m_func);
1532 }
1533
1534 wxPyCallback::~wxPyCallback() {
1535     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1536     Py_DECREF(m_func);
1537     wxPyEndBlockThreads(blocked);
1538 }
1539
1540
1541 #define wxPy_PRECALLINIT     "_preCallInit"
1542 #define wxPy_POSTCALLCLEANUP "_postCallCleanup"
1543
1544 // This function is used for all events destined for Python event handlers.
1545 void wxPyCallback::EventThunker(wxEvent& event) {
1546     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1547     PyObject*       func = cb->m_func;
1548     PyObject*       result;
1549     PyObject*       arg;
1550     PyObject*       tuple;
1551     bool            checkSkip = false;
1552
1553     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1554     wxString className = event.GetClassInfo()->GetClassName();
1555
1556     // If the event is one of these types then pass the original
1557     // event object instead of the one passed to us.
1558     if ( className == wxT("wxPyEvent") ) {
1559         arg =       ((wxPyEvent*)&event)->GetSelf();
1560         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1561     }
1562     else if ( className == wxT("wxPyCommandEvent") ) {
1563         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1564         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1565     }
1566     else {
1567         arg = wxPyConstructObject((void*)&event, className);
1568     }
1569
1570     if (!arg) {
1571         PyErr_Print();
1572     } else {
1573         // "intern" the pre/post method names to speed up the HasAttr
1574         static PyObject* s_preName  = NULL;
1575         static PyObject* s_postName = NULL;
1576         if (s_preName == NULL) {
1577             s_preName  = PyString_FromString(wxPy_PRECALLINIT);
1578             s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP);
1579         }
1580
1581         // Check if the event object needs some preinitialization
1582         if (PyObject_HasAttr(arg, s_preName)) {
1583             result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL);
1584             if ( result ) {
1585                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1586                 PyErr_Clear();       // Just in case...
1587             } else {
1588                 PyErr_Print();
1589             }
1590         }
1591
1592         // Call the event handler, passing the event object
1593         tuple = PyTuple_New(1);
1594         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1595         result = PyEval_CallObject(func, tuple);
1596         if ( result ) {
1597             Py_DECREF(result);   // result is ignored, but we still need to decref it
1598             PyErr_Clear();       // Just in case...
1599         } else {
1600             PyErr_Print();
1601         }
1602
1603         // Check if the event object needs some post cleanup
1604         if (PyObject_HasAttr(arg, s_postName)) {
1605             result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL);
1606             if ( result ) {
1607                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1608                 PyErr_Clear();       // Just in case...
1609             } else {
1610                 PyErr_Print();
1611             }
1612         }
1613
1614         if ( checkSkip ) {
1615             // if the event object was one of our special types and
1616             // it had been cloned, then we need to extract the Skipped
1617             // value from the original and set it in the clone.
1618             result = PyObject_CallMethod(arg, "GetSkipped", "");
1619             if ( result ) {
1620                 event.Skip(PyInt_AsLong(result));
1621                 Py_DECREF(result);
1622             } else {
1623                 PyErr_Print();
1624             }
1625         }
1626         Py_DECREF(tuple);
1627     }
1628     wxPyEndBlockThreads(blocked);
1629 }
1630
1631
1632 //----------------------------------------------------------------------
1633
1634 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1635       m_lastFound = NULL;
1636       m_self = other.m_self;
1637       m_class = other.m_class;
1638       if (m_self) {
1639           Py_INCREF(m_self);
1640           Py_INCREF(m_class);
1641       }
1642 }
1643
1644
1645 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1646     m_self = self;
1647     m_class = klass;
1648     m_incRef = incref;
1649     if (incref) {
1650         Py_INCREF(m_self);
1651         Py_INCREF(m_class);
1652     }
1653 }
1654
1655
1656 #if PYTHON_API_VERSION >= 1011
1657
1658 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1659 // in which the method was defined.  Starting with 2.2 it returns
1660 // "class that asked for the method" which seems totally bogus to me
1661 // but apprently it fixes some obscure problem waiting to happen in
1662 // Python.  Since the API was not documented Guido and the gang felt
1663 // safe in changing it.  Needless to say that totally screwed up the
1664 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1665 // code to find the class where the method is actually defined...
1666
1667 static
1668 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1669 {
1670     int i, n;
1671
1672     if (PyType_Check(klass)) {      // new style classes
1673         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1674         PyTypeObject* type = (PyTypeObject*)klass;
1675         PyObject *mro, *res, *base, *dict;
1676         /* Look in tp_dict of types in MRO */
1677         mro = type->tp_mro;
1678         assert(PyTuple_Check(mro));
1679         n = PyTuple_GET_SIZE(mro);
1680         for (i = 0; i < n; i++) {
1681             base = PyTuple_GET_ITEM(mro, i);
1682             if (PyClass_Check(base))
1683                 dict = ((PyClassObject *)base)->cl_dict;
1684             else {
1685                 assert(PyType_Check(base));
1686                 dict = ((PyTypeObject *)base)->tp_dict;
1687             }
1688             assert(dict && PyDict_Check(dict));
1689             res = PyDict_GetItem(dict, name);
1690             if (res != NULL)
1691                 return base;
1692         }
1693         return NULL;
1694     }
1695
1696     else if (PyClass_Check(klass)) { // old style classes
1697         // This code is borrowed/adapted from class_lookup in classobject.c
1698         PyClassObject* cp = (PyClassObject*)klass;
1699         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1700         if (value != NULL) {
1701             return (PyObject*)cp;
1702         }
1703         n = PyTuple_Size(cp->cl_bases);
1704         for (i = 0; i < n; i++) {
1705             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1706             PyObject *v = PyFindClassWithAttr(base, name);
1707             if (v != NULL)
1708                 return v;
1709         }
1710         return NULL;
1711     }
1712     return NULL;
1713 }
1714 #endif
1715
1716
1717 static
1718 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1719 {
1720     PyObject* mgc = PyMethod_GET_CLASS(method);
1721
1722 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1723     return mgc;
1724 #else                             // 2.2 and after, the hard way...
1725
1726     PyObject* nameo = PyString_FromString(name);
1727     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1728     Py_DECREF(nameo);
1729     return klass;
1730 #endif
1731 }
1732
1733
1734
1735 bool wxPyCallbackHelper::findCallback(const char* name) const {
1736     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1737     self->m_lastFound = NULL;
1738
1739     // If the object (m_self) has an attibute of the given name...
1740     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1741         PyObject *method, *klass;
1742         method = PyObject_GetAttrString(m_self, (char*)name);
1743
1744         // ...and if that attribute is a method, and if that method's class is
1745         // not from a base class...
1746         if (PyMethod_Check(method) &&
1747             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1748             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1749
1750             // ...then we'll save a pointer to the method so callCallback can call it.
1751             self->m_lastFound = method;
1752         }
1753         else {
1754             Py_DECREF(method);
1755         }
1756     }
1757     return m_lastFound != NULL;
1758 }
1759
1760
1761 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1762     PyObject*   result;
1763     int         retval = false;
1764
1765     result = callCallbackObj(argTuple);
1766     if (result) {                       // Assumes an integer return type...
1767         retval = PyInt_AsLong(result);
1768         Py_DECREF(result);
1769         PyErr_Clear();                  // forget about it if it's not...
1770     }
1771     return retval;
1772 }
1773
1774 // Invoke the Python callable object, returning the raw PyObject return
1775 // value.  Caller should DECREF the return value and also manage the GIL.
1776 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1777     PyObject* result;
1778
1779     // Save a copy of the pointer in case the callback generates another
1780     // callback.  In that case m_lastFound will have a different value when
1781     // it gets back here...
1782     PyObject* method = m_lastFound;
1783
1784     result = PyEval_CallObject(method, argTuple);
1785     Py_DECREF(argTuple);
1786     Py_DECREF(method);
1787     if (!result) {
1788         PyErr_Print();
1789     }
1790     return result;
1791 }
1792
1793
1794 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1795     cbh.setSelf(self, klass, incref);
1796 }
1797
1798 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1799     return cbh.findCallback(name);
1800 }
1801
1802 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1803     return cbh.callCallback(argTuple);
1804 }
1805
1806 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1807     return cbh.callCallbackObj(argTuple);
1808 }
1809
1810
1811 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1812     if (cbh->m_incRef) {
1813         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1814         Py_XDECREF(cbh->m_self);
1815         Py_XDECREF(cbh->m_class);
1816         wxPyEndBlockThreads(blocked);
1817     }
1818 }
1819
1820 //---------------------------------------------------------------------------
1821 //---------------------------------------------------------------------------
1822 // These event classes can be derived from in Python and passed through the event
1823 // system without losing anything.  They do this by keeping a reference to
1824 // themselves and some special case handling in wxPyCallback::EventThunker.
1825
1826
1827 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1828     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1829     //Py_INCREF(m_self);        //      circular loops...
1830     m_cloned = false;
1831 }
1832
1833 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1834     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1835     if (m_cloned)
1836         Py_DECREF(m_self);
1837     wxPyEndBlockThreads(blocked);
1838 }
1839
1840 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1841     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1842     if (m_cloned)
1843         Py_DECREF(m_self);
1844     m_self = self;
1845     if (clone) {
1846         Py_INCREF(m_self);
1847         m_cloned = true;
1848     }
1849     wxPyEndBlockThreads(blocked);
1850 }
1851
1852 PyObject* wxPyEvtSelfRef::GetSelf() const {
1853     Py_INCREF(m_self);
1854     return m_self;
1855 }
1856
1857
1858 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1859 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1860
1861
1862 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1863     : wxEvent(winid, commandType) {
1864 }
1865
1866
1867 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1868     : wxEvent(evt)
1869 {
1870     SetSelf(evt.m_self, true);
1871 }
1872
1873
1874 wxPyEvent::~wxPyEvent() {
1875 }
1876
1877
1878 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1879     : wxCommandEvent(commandType, id) {
1880 }
1881
1882
1883 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1884     : wxCommandEvent(evt)
1885 {
1886     SetSelf(evt.m_self, true);
1887 }
1888
1889
1890 wxPyCommandEvent::~wxPyCommandEvent() {
1891 }
1892
1893
1894
1895
1896
1897 //---------------------------------------------------------------------------
1898 //---------------------------------------------------------------------------
1899 // Convert a wxList to a Python List, only works for lists of wxObjects
1900
1901 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1902     wxList*     list = (wxList*)listbase;  // this is probably bad...
1903     PyObject*   pyList;
1904     PyObject*   pyObj;
1905     wxObject*   wxObj;
1906     wxNode*     node = list->GetFirst();
1907
1908     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1909     pyList = PyList_New(0);
1910     while (node) {
1911         wxObj = node->GetData();
1912         pyObj = wxPyMake_wxObject(wxObj,false);
1913         PyList_Append(pyList, pyObj);
1914         node = node->GetNext();
1915     }
1916     wxPyEndBlockThreads(blocked);
1917     return pyList;
1918 }
1919
1920 //----------------------------------------------------------------------
1921
1922 long wxPyGetWinHandle(wxWindow* win) {
1923
1924 #ifdef __WXMSW__
1925     return (long)win->GetHandle();
1926 #endif
1927
1928 #if defined(__WXGTK__) || defined(__WXX11)
1929     return (long)GetXWindow(win);
1930 #endif
1931
1932 #ifdef __WXMAC__
1933     //return (long)MAC_WXHWND(win->MacGetTopLevelWindowRef());
1934     return (long)win->GetHandle();
1935 #endif
1936
1937     return 0;
1938 }
1939
1940 //----------------------------------------------------------------------
1941 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1942 // included in every file over and over again...
1943
1944 wxString* wxString_in_helper(PyObject* source) {
1945     wxString* target = NULL;
1946
1947     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1948         PyErr_SetString(PyExc_TypeError, "String or Unicode type required");
1949         return NULL;
1950     }
1951 #if wxUSE_UNICODE
1952     PyObject* uni = source;
1953     if (PyString_Check(source)) {
1954         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
1955         if (PyErr_Occurred()) return NULL;
1956     }
1957     target = new wxString();
1958     size_t len = PyUnicode_GET_SIZE(uni);
1959     if (len) {
1960         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target->GetWriteBuf(len), len);
1961         target->UngetWriteBuf(len);
1962     }
1963
1964     if (PyString_Check(source))
1965         Py_DECREF(uni);
1966 #else
1967     // Convert to a string object if it isn't already, then to wxString
1968     PyObject* str = source;
1969     if (PyUnicode_Check(source)) {
1970         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
1971         if (PyErr_Occurred()) return NULL;
1972     }
1973     else if (!PyString_Check(source)) {
1974         str = PyObject_Str(source);
1975         if (PyErr_Occurred()) return NULL;
1976     }
1977     char* tmpPtr; int tmpSize;
1978     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1979     target = new wxString(tmpPtr, tmpSize);
1980
1981     if (!PyString_Check(source))
1982         Py_DECREF(str);
1983 #endif // wxUSE_UNICODE
1984
1985     return target;
1986 }
1987
1988
1989 // Similar to above except doesn't use "new" and doesn't set an exception
1990 wxString Py2wxString(PyObject* source)
1991 {
1992     wxString target;
1993
1994 #if wxUSE_UNICODE
1995     // Convert to a unicode object, if not already, then to a wxString
1996     PyObject* uni = source;
1997     if (!PyUnicode_Check(source)) {
1998         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
1999         if (PyErr_Occurred()) return wxEmptyString;  // TODO:  should we PyErr_Clear?
2000     }
2001     size_t len = PyUnicode_GET_SIZE(uni);
2002     if (len) {
2003         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target.GetWriteBuf(len), len);
2004         target.UngetWriteBuf();
2005     }
2006
2007     if (!PyUnicode_Check(source))
2008         Py_DECREF(uni);
2009 #else
2010     // Convert to a string object if it isn't already, then to wxString
2011     PyObject* str = source;
2012     if (PyUnicode_Check(source)) {
2013         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
2014         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
2015     }
2016     else if (!PyString_Check(source)) {
2017         str = PyObject_Str(source);
2018         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
2019     }
2020     char* tmpPtr; int tmpSize;
2021     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
2022     target = wxString(tmpPtr, tmpSize);
2023
2024     if (!PyString_Check(source))
2025         Py_DECREF(str);
2026 #endif // wxUSE_UNICODE
2027
2028     return target;
2029 }
2030
2031
2032 // Make either a Python String or Unicode object, depending on build mode
2033 PyObject* wx2PyString(const wxString& src)
2034 {
2035     PyObject* str;
2036 #if wxUSE_UNICODE
2037     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
2038 #else
2039     str = PyString_FromStringAndSize(src.c_str(), src.Len());
2040 #endif
2041     return str;
2042 }
2043
2044
2045
2046 void wxSetDefaultPyEncoding(const char* encoding)
2047 {
2048     strncpy(wxPyDefaultEncoding, encoding, DEFAULTENCODING_SIZE);
2049 }
2050
2051 const char* wxGetDefaultPyEncoding()
2052 {
2053     return wxPyDefaultEncoding;
2054 }
2055
2056 //----------------------------------------------------------------------
2057
2058
2059 byte* byte_LIST_helper(PyObject* source) {
2060     if (!PyList_Check(source)) {
2061         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2062         return NULL;
2063     }
2064     int count = PyList_Size(source);
2065     byte* temp = new byte[count];
2066     if (! temp) {
2067         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2068         return NULL;
2069     }
2070     for (int x=0; x<count; x++) {
2071         PyObject* o = PyList_GetItem(source, x);
2072         if (! PyInt_Check(o)) {
2073             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2074             return NULL;
2075         }
2076         temp[x] = (byte)PyInt_AsLong(o);
2077     }
2078     return temp;
2079 }
2080
2081
2082 int* int_LIST_helper(PyObject* source) {
2083     if (!PyList_Check(source)) {
2084         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2085         return NULL;
2086     }
2087     int count = PyList_Size(source);
2088     int* temp = new int[count];
2089     if (! temp) {
2090         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2091         return NULL;
2092     }
2093     for (int x=0; x<count; x++) {
2094         PyObject* o = PyList_GetItem(source, x);
2095         if (! PyInt_Check(o)) {
2096             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2097             return NULL;
2098         }
2099         temp[x] = PyInt_AsLong(o);
2100     }
2101     return temp;
2102 }
2103
2104
2105 long* long_LIST_helper(PyObject* source) {
2106     if (!PyList_Check(source)) {
2107         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2108         return NULL;
2109     }
2110     int count = PyList_Size(source);
2111     long* temp = new long[count];
2112     if (! temp) {
2113         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2114         return NULL;
2115     }
2116     for (int x=0; x<count; x++) {
2117         PyObject* o = PyList_GetItem(source, x);
2118         if (! PyInt_Check(o)) {
2119             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2120             return NULL;
2121         }
2122         temp[x] = PyInt_AsLong(o);
2123     }
2124     return temp;
2125 }
2126
2127
2128 char** string_LIST_helper(PyObject* source) {
2129     if (!PyList_Check(source)) {
2130         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2131         return NULL;
2132     }
2133     int count = PyList_Size(source);
2134     char** temp = new char*[count];
2135     if (! temp) {
2136         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2137         return NULL;
2138     }
2139     for (int x=0; x<count; x++) {
2140         PyObject* o = PyList_GetItem(source, x);
2141         if (! PyString_Check(o)) {
2142             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2143             return NULL;
2144         }
2145         temp[x] = PyString_AsString(o);
2146     }
2147     return temp;
2148 }
2149
2150 //--------------------------------
2151 // Part of patch from Tim Hochberg
2152 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
2153     if (PyInt_Check(o1) && PyInt_Check(o2)) {
2154         point->x = PyInt_AS_LONG(o1);
2155         point->y = PyInt_AS_LONG(o2);
2156         return true;
2157     }
2158     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
2159         point->x = (int)PyFloat_AS_DOUBLE(o1);
2160         point->y = (int)PyFloat_AS_DOUBLE(o2);
2161         return true;
2162     }
2163     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
2164         // Disallow instances because they can cause havok
2165         return false;
2166     }
2167     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
2168         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
2169         point->x = PyInt_AsLong(o1);
2170         point->y = PyInt_AsLong(o2);
2171         return true;
2172     }
2173     return false;
2174 }
2175
2176
2177 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
2178     // Putting all of the declarations here allows
2179     // us to put the error handling all in one place.
2180     int x;
2181     wxPoint* temp;
2182     PyObject *o, *o1, *o2;
2183     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2184
2185     if (!PySequence_Check(source)) {
2186         goto error0;
2187     }
2188
2189     // The length of the sequence is returned in count.
2190     *count = PySequence_Length(source);
2191     if (*count < 0) {
2192         goto error0;
2193     }
2194
2195     temp = new wxPoint[*count];
2196     if (!temp) {
2197         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2198         return NULL;
2199     }
2200     for (x=0; x<*count; x++) {
2201         // Get an item: try fast way first.
2202         if (isFast) {
2203             o = PySequence_Fast_GET_ITEM(source, x);
2204         }
2205         else {
2206             o = PySequence_GetItem(source, x);
2207             if (o == NULL) {
2208                 goto error1;
2209             }
2210         }
2211
2212         // Convert o to wxPoint.
2213         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
2214             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
2215             o1 = PySequence_Fast_GET_ITEM(o, 0);
2216             o2 = PySequence_Fast_GET_ITEM(o, 1);
2217             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2218                 goto error2;
2219             }
2220         }
2221         else if (wxPySwigInstance_Check(o)) {
2222             wxPoint* pt;
2223             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
2224                 goto error2;
2225             }
2226             temp[x] = *pt;
2227         }
2228         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
2229             o1 = PySequence_GetItem(o, 0);
2230             o2 = PySequence_GetItem(o, 1);
2231             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2232                 goto error3;
2233             }
2234             Py_DECREF(o1);
2235             Py_DECREF(o2);
2236         }
2237         else {
2238             goto error2;
2239         }
2240         // Clean up.
2241         if (!isFast)
2242             Py_DECREF(o);
2243     }
2244     return temp;
2245
2246 error3:
2247     Py_DECREF(o1);
2248     Py_DECREF(o2);
2249 error2:
2250     if (!isFast)
2251         Py_DECREF(o);
2252 error1:
2253     delete [] temp;
2254 error0:
2255     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2256     return NULL;
2257 }
2258 // end of patch
2259 //------------------------------
2260
2261
2262 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2263     if (!PyList_Check(source)) {
2264         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2265         return NULL;
2266     }
2267     int count = PyList_Size(source);
2268     wxBitmap** temp = new wxBitmap*[count];
2269     if (! temp) {
2270         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2271         return NULL;
2272     }
2273     for (int x=0; x<count; x++) {
2274         PyObject* o = PyList_GetItem(source, x);
2275         if (wxPySwigInstance_Check(o)) {
2276             wxBitmap*    pt;
2277             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2278                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2279                 return NULL;
2280             }
2281             temp[x] = pt;
2282         }
2283         else {
2284             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2285             return NULL;
2286         }
2287     }
2288     return temp;
2289 }
2290
2291
2292
2293 wxString* wxString_LIST_helper(PyObject* source) {
2294     if (!PyList_Check(source)) {
2295         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2296         return NULL;
2297     }
2298     int count = PyList_Size(source);
2299     wxString* temp = new wxString[count];
2300     if (! temp) {
2301         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2302         return NULL;
2303     }
2304     for (int x=0; x<count; x++) {
2305         PyObject* o = PyList_GetItem(source, x);
2306 #if PYTHON_API_VERSION >= 1009
2307         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2308             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2309             return NULL;
2310         }
2311 #else
2312         if (! PyString_Check(o)) {
2313             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2314             return NULL;
2315         }
2316 #endif
2317
2318         wxString* pStr = wxString_in_helper(o);
2319         temp[x] = *pStr;
2320         delete pStr;
2321     }
2322     return temp;
2323 }
2324
2325
2326 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2327     if (!PyList_Check(source)) {
2328         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2329         return NULL;
2330     }
2331     int count                = PyList_Size(source);
2332     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2333     if (! temp) {
2334         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2335         return NULL;
2336     }
2337     for (int x=0; x<count; x++) {
2338         PyObject* o = PyList_GetItem(source, x);
2339         if (wxPySwigInstance_Check(o)) {
2340             wxAcceleratorEntry* ae;
2341             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2342                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2343                 return NULL;
2344             }
2345             temp[x] = *ae;
2346         }
2347         else if (PyTuple_Check(o)) {
2348             PyObject* o1 = PyTuple_GetItem(o, 0);
2349             PyObject* o2 = PyTuple_GetItem(o, 1);
2350             PyObject* o3 = PyTuple_GetItem(o, 2);
2351             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2352         }
2353         else {
2354             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2355             return NULL;
2356         }
2357     }
2358     return temp;
2359 }
2360
2361
2362 wxPen** wxPen_LIST_helper(PyObject* source) {
2363     if (!PyList_Check(source)) {
2364         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2365         return NULL;
2366     }
2367     int count = PyList_Size(source);
2368     wxPen** temp = new wxPen*[count];
2369     if (!temp) {
2370         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2371         return NULL;
2372     }
2373     for (int x=0; x<count; x++) {
2374         PyObject* o = PyList_GetItem(source, x);
2375         if (wxPySwigInstance_Check(o)) {
2376             wxPen*  pt;
2377             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2378                 delete temp;
2379                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2380                 return NULL;
2381             }
2382             temp[x] = pt;
2383         }
2384         else {
2385             delete temp;
2386             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2387             return NULL;
2388         }
2389     }
2390     return temp;
2391 }
2392
2393
2394 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2395     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2396     PyObject *o1, *o2;
2397
2398     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2399         return false;
2400
2401     if (isFast) {
2402         o1 = PySequence_Fast_GET_ITEM(source, 0);
2403         o2 = PySequence_Fast_GET_ITEM(source, 1);
2404     }
2405     else {
2406         o1 = PySequence_GetItem(source, 0);
2407         o2 = PySequence_GetItem(source, 1);
2408     }
2409
2410     *i1 = PyInt_AsLong(o1);
2411     *i2 = PyInt_AsLong(o2);
2412
2413     if (! isFast) {
2414         Py_DECREF(o1);
2415         Py_DECREF(o2);
2416     }
2417     return true;
2418 }
2419
2420
2421 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2422     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2423     PyObject *o1, *o2, *o3, *o4;
2424
2425     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2426         return false;
2427
2428     if (isFast) {
2429         o1 = PySequence_Fast_GET_ITEM(source, 0);
2430         o2 = PySequence_Fast_GET_ITEM(source, 1);
2431         o3 = PySequence_Fast_GET_ITEM(source, 2);
2432         o4 = PySequence_Fast_GET_ITEM(source, 3);
2433     }
2434     else {
2435         o1 = PySequence_GetItem(source, 0);
2436         o2 = PySequence_GetItem(source, 1);
2437         o3 = PySequence_GetItem(source, 2);
2438         o4 = PySequence_GetItem(source, 3);
2439     }
2440
2441     *i1 = PyInt_AsLong(o1);
2442     *i2 = PyInt_AsLong(o2);
2443     *i3 = PyInt_AsLong(o3);
2444     *i4 = PyInt_AsLong(o4);
2445
2446     if (! isFast) {
2447         Py_DECREF(o1);
2448         Py_DECREF(o2);
2449         Py_DECREF(o3);
2450         Py_DECREF(o4);
2451     }
2452     return true;
2453 }
2454
2455
2456 //----------------------------------------------------------------------
2457
2458 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2459 {
2460     void* ptr;
2461
2462     if (wxPySwigInstance_Check(source) &&
2463         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2464         return true;
2465
2466     PyErr_Clear();
2467     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2468         return true;
2469
2470     return false;
2471 }
2472
2473 bool wxSize_helper(PyObject* source, wxSize** obj)
2474 {
2475     if (source == Py_None) {
2476         **obj = wxSize(-1,-1);
2477         return true;
2478     }
2479     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2480 }
2481
2482
2483 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2484 {
2485     if (source == Py_None) {
2486         **obj = wxPoint(-1,-1);
2487         return true;
2488     }
2489     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2490 }
2491
2492
2493
2494 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2495
2496     if (source == Py_None) {
2497         **obj = wxRealPoint(-1,-1);
2498         return true;
2499     }
2500
2501     // If source is an object instance then it may already be the right type
2502     if (wxPySwigInstance_Check(source)) {
2503         wxRealPoint* ptr;
2504         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2505             goto error;
2506         *obj = ptr;
2507         return true;
2508     }
2509     // otherwise a 2-tuple of floats is expected
2510     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2511         PyObject* o1 = PySequence_GetItem(source, 0);
2512         PyObject* o2 = PySequence_GetItem(source, 1);
2513         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2514             Py_DECREF(o1);
2515             Py_DECREF(o2);
2516             goto error;
2517         }
2518         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2519         Py_DECREF(o1);
2520         Py_DECREF(o2);
2521         return true;
2522     }
2523
2524  error:
2525     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2526     return false;
2527 }
2528
2529
2530
2531 bool wxRect_helper(PyObject* source, wxRect** obj) {
2532
2533     if (source == Py_None) {
2534         **obj = wxRect(-1,-1,-1,-1);
2535         return true;
2536     }
2537
2538     // If source is an object instance then it may already be the right type
2539     if (wxPySwigInstance_Check(source)) {
2540         wxRect* ptr;
2541         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2542             goto error;
2543         *obj = ptr;
2544         return true;
2545     }
2546     // otherwise a 4-tuple of integers is expected
2547     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2548         PyObject* o1 = PySequence_GetItem(source, 0);
2549         PyObject* o2 = PySequence_GetItem(source, 1);
2550         PyObject* o3 = PySequence_GetItem(source, 2);
2551         PyObject* o4 = PySequence_GetItem(source, 3);
2552         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2553             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2554             Py_DECREF(o1);
2555             Py_DECREF(o2);
2556             Py_DECREF(o3);
2557             Py_DECREF(o4);
2558             goto error;
2559         }
2560         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2561                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2562         Py_DECREF(o1);
2563         Py_DECREF(o2);
2564         Py_DECREF(o3);
2565         Py_DECREF(o4);
2566         return true;
2567     }
2568
2569  error:
2570     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2571     return false;
2572 }
2573
2574
2575
2576 bool wxColour_helper(PyObject* source, wxColour** obj) {
2577
2578     if (source == Py_None) {
2579         **obj = wxNullColour;
2580         return true;
2581     }
2582
2583     // If source is an object instance then it may already be the right type
2584     if (wxPySwigInstance_Check(source)) {
2585         wxColour* ptr;
2586         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2587             goto error;
2588         *obj = ptr;
2589         return true;
2590     }
2591     // otherwise check for a string
2592     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2593         wxString spec = Py2wxString(source);
2594         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2595             long red, green, blue;
2596             red = green = blue = 0;
2597             spec.Mid(1,2).ToLong(&red,   16);
2598             spec.Mid(3,2).ToLong(&green, 16);
2599             spec.Mid(5,2).ToLong(&blue,  16);
2600
2601             **obj = wxColour(red, green, blue);
2602             return true;
2603         }
2604         else {                                       // it's a colour name
2605             **obj = wxColour(spec);
2606             return true;
2607         }
2608     }
2609     // last chance: 3-tuple of integers is expected
2610     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2611         PyObject* o1 = PySequence_GetItem(source, 0);
2612         PyObject* o2 = PySequence_GetItem(source, 1);
2613         PyObject* o3 = PySequence_GetItem(source, 2);
2614         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2615             Py_DECREF(o1);
2616             Py_DECREF(o2);
2617             Py_DECREF(o3);
2618             goto error;
2619         }
2620         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2621         Py_DECREF(o1);
2622         Py_DECREF(o2);
2623         Py_DECREF(o3);
2624         return true;
2625     }
2626
2627  error:
2628     PyErr_SetString(PyExc_TypeError,
2629                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2630     return false;
2631 }
2632
2633
2634 bool wxColour_typecheck(PyObject* source) {
2635
2636     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2637         return true;
2638
2639     if (PyString_Check(source) || PyUnicode_Check(source))
2640         return true;
2641
2642     return false;
2643 }
2644
2645
2646
2647 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2648
2649     if (source == Py_None) {
2650         **obj = wxPoint2D(-1,-1);
2651         return true;
2652     }
2653
2654     // If source is an object instance then it may already be the right type
2655     if (wxPySwigInstance_Check(source)) {
2656         wxPoint2D* ptr;
2657         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2658             goto error;
2659         *obj = ptr;
2660         return true;
2661     }
2662     // otherwise a length-2 sequence of floats is expected
2663     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2664         PyObject* o1 = PySequence_GetItem(source, 0);
2665         PyObject* o2 = PySequence_GetItem(source, 1);
2666         // This should really check for floats, not numbers -- but that would break code.
2667         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2668             Py_DECREF(o1);
2669             Py_DECREF(o2);
2670             goto error;
2671         }
2672         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2673         Py_DECREF(o1);
2674         Py_DECREF(o2);
2675         return true;
2676     }
2677  error:
2678     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2679     return false;
2680 }
2681
2682
2683 //----------------------------------------------------------------------
2684
2685 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2686
2687     PyObject* list = PyList_New(0);
2688     for (size_t i=0; i < arr.GetCount(); i++) {
2689 #if wxUSE_UNICODE
2690         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2691 #else
2692         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2693 #endif
2694         PyList_Append(list, str);
2695         Py_DECREF(str);
2696     }
2697     return list;
2698 }
2699
2700
2701 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2702
2703     PyObject* list = PyList_New(0);
2704     for (size_t i=0; i < arr.GetCount(); i++) {
2705         PyObject* number = PyInt_FromLong(arr[i]);
2706         PyList_Append(list, number);
2707         Py_DECREF(number);
2708     }
2709     return list;
2710 }
2711
2712
2713 //----------------------------------------------------------------------
2714 // wxPyImageHandler methods
2715 //
2716 // TODO: Switch these to use wxPython's standard macros and helper classes
2717 //       for calling callbacks.
2718
2719 PyObject* wxPyImageHandler::m_DoCanRead_Name = NULL;
2720 PyObject* wxPyImageHandler::m_GetImageCount_Name = NULL;
2721 PyObject* wxPyImageHandler::m_LoadFile_Name = NULL;
2722 PyObject* wxPyImageHandler::m_SaveFile_Name = NULL;
2723
2724 PyObject* wxPyImageHandler::py_InputStream(wxInputStream* stream) {
2725     return wxPyConstructObject(new wxPyInputStream(stream),
2726                                wxT("wxPyInputStream"), 0);
2727 }
2728
2729 PyObject* wxPyImageHandler::py_Image(wxImage* image) {
2730     return wxPyConstructObject(image, wxT("wxImage"), 0);
2731 }
2732
2733 PyObject* wxPyImageHandler::py_OutputStream(wxOutputStream* stream) {
2734     return wxPyConstructObject(stream, wxT("wxOutputStream"), 0);
2735 }
2736
2737 wxPyImageHandler::wxPyImageHandler():
2738     m_self(NULL)
2739 {
2740     if (!m_DoCanRead_Name) {
2741         m_DoCanRead_Name = PyString_FromString("DoCanRead");
2742         m_GetImageCount_Name = PyString_FromString("GetImageCount");
2743         m_LoadFile_Name = PyString_FromString("LoadFile");
2744         m_SaveFile_Name = PyString_FromString("SaveFile");
2745     }
2746 }
2747
2748 wxPyImageHandler::~wxPyImageHandler() {
2749     if (m_self) {
2750         Py_DECREF(m_self);
2751         m_self = NULL;
2752     }
2753 }
2754
2755 void wxPyImageHandler::_SetSelf(PyObject *self) {
2756     // should check here for isinstance(PyImageHandler) ??
2757     m_self = self;
2758     Py_INCREF(m_self);
2759 }
2760
2761 bool wxPyImageHandler::DoCanRead(wxInputStream& stream) {
2762     // check if our object has this method
2763     wxPyBlock_t blocked = wxPyBeginBlockThreads();
2764     if (!m_self || !PyObject_HasAttr(m_self, m_DoCanRead_Name)) {
2765         wxPyEndBlockThreads(blocked);
2766         return false;
2767     }
2768
2769     PyObject* res = PyObject_CallMethodObjArgs(m_self, m_DoCanRead_Name,
2770                                                py_InputStream(&stream), NULL);
2771     bool retval = false;
2772     if (res) {
2773         retval = PyInt_AsLong(res);
2774         Py_DECREF(res);
2775         PyErr_Clear();
2776     }
2777     else
2778         PyErr_Print();
2779     wxPyEndBlockThreads(blocked);
2780     return retval;
2781 }
2782
2783 bool wxPyImageHandler::LoadFile( wxImage* image, wxInputStream& stream,
2784                                  bool verbose, int index ) {
2785     // check if our object has this method
2786     wxPyBlock_t blocked = wxPyBeginBlockThreads();
2787     if (!m_self || !PyObject_HasAttr(m_self, m_LoadFile_Name)) {
2788         wxPyEndBlockThreads(blocked);
2789         return false;
2790     }
2791     PyObject* res = PyObject_CallMethodObjArgs(m_self, m_LoadFile_Name,
2792                                                py_Image(image),
2793                                                py_InputStream(&stream),
2794                                                PyInt_FromLong(verbose),
2795                                                PyInt_FromLong(index),
2796                                                NULL);
2797     bool retval = false;
2798     if (res) {
2799         retval = PyInt_AsLong(res);
2800         Py_DECREF(res);
2801         PyErr_Clear();
2802     } else
2803         PyErr_Print();
2804     wxPyEndBlockThreads(blocked);
2805     return retval;
2806 }
2807
2808 bool wxPyImageHandler::SaveFile( wxImage* image, wxOutputStream& stream,
2809                                  bool verbose ) {
2810     wxPyBlock_t blocked = wxPyBeginBlockThreads();
2811     if (!m_self || !PyObject_HasAttr(m_self, m_SaveFile_Name)) {
2812         wxPyEndBlockThreads(blocked);
2813         return false;
2814     }
2815     PyObject* res = PyObject_CallMethodObjArgs(m_self, m_SaveFile_Name,
2816                                                py_Image(image),
2817                                                py_OutputStream(&stream),
2818                                                PyInt_FromLong(verbose),
2819                                                NULL);
2820     bool retval = false;
2821     if(res) {
2822         retval=PyInt_AsLong(res);
2823         Py_DECREF(res);
2824         PyErr_Clear();
2825     } else
2826         PyErr_Print();
2827     wxPyEndBlockThreads(blocked);
2828     return retval;
2829 }
2830
2831 int wxPyImageHandler::GetImageCount( wxInputStream& stream ) {
2832     wxPyBlock_t blocked = wxPyBeginBlockThreads();
2833     if (!m_self || !PyObject_HasAttr(m_self, m_GetImageCount_Name)) {
2834         wxPyEndBlockThreads(blocked);
2835         return 1;
2836     }
2837     PyObject *res=PyObject_CallMethodObjArgs(m_self, m_GetImageCount_Name,
2838                                              py_InputStream(&stream),
2839                                              NULL);
2840     int retval = 1;
2841     if(res) {
2842         retval=PyInt_AsLong(res);
2843         Py_DECREF(res);
2844         PyErr_Clear();
2845     } else
2846         PyErr_Print();
2847     wxPyEndBlockThreads(blocked);
2848     return retval;
2849 }
2850
2851
2852 //----------------------------------------------------------------------
2853 //----------------------------------------------------------------------
2854
2855
2856
2857