wxPython/src/helpers.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        helpers.cpp
   3 // Purpose:     Helper functions/classes for the wxPython extension module
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     1-July-1997
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1998 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13
  14 #undef DEBUG
  15 #include <Python.h>
  16 #include "wx/wxPython/wxPython_int.h"
  17 #include "wx/wxPython/pyistream.h"
  18
  19 #ifdef __WXMSW__
  20 #include <wx/msw/private.h>
  21 #include <wx/msw/winundef.h>
  22 #include <wx/msw/msvcrt.h>
  23 #endif
  24
  25 #ifdef __WXGTK__
  26 #include <gdk/gdk.h>
  27 #include <gdk/gdkx.h>
  28 #include <gtk/gtk.h>
  29 #include <gdk/gdkprivate.h>
  30 #include <wx/gtk/win_gtk.h>
  31 #define GetXWindow(wxwin) (wxwin)->m_wxwindow ? \
  32                               GDK_WINDOW_XWINDOW(GTK_PIZZA((wxwin)->m_wxwindow)->bin_window) : \
  33                               GDK_WINDOW_XWINDOW((wxwin)->m_widget->window)
  34 #include <locale.h>
  35 #endif
  36
  37 #ifdef __WXX11__
  38 #include "wx/x11/privx.h"
  39 #define GetXWindow(wxwin)   ((Window)(wxwin)->GetHandle())
  40 #endif
  41
  42 #ifdef __WXMAC__
  43 #include <wx/mac/private.h>
  44 #endif
  45
  46 #include <wx/clipbrd.h>
  47 #include <wx/mimetype.h>
  48 #include <wx/image.h>
  49
  50 //----------------------------------------------------------------------
  51
  52 #if PYTHON_API_VERSION < 1009 && wxUSE_UNICODE
  53 #error Python must support Unicode to use wxWindows Unicode
  54 #endif
  55
  56 //----------------------------------------------------------------------
  57
  58 wxPyApp* wxPythonApp = NULL;  // Global instance of application object
  59 bool wxPyDoCleanup = false;
  60 bool wxPyDoingCleanup = false;
  61
  62
  63 #ifdef WXP_WITH_THREAD
  64 #if !wxPyUSE_GIL_STATE
  65 struct wxPyThreadState {
  66     unsigned long  tid;
  67     PyThreadState* tstate;
  68
  69     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  70         : tid(_tid), tstate(_tstate) {}
  71 };
  72
  73 #include <wx/dynarray.h>
  74 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  75 #include <wx/arrimpl.cpp>
  76 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  77
  78 wxPyThreadStateArray* wxPyTStates = NULL;
  79 wxMutex*              wxPyTMutex = NULL;
  80
  81 #endif
  82 #endif
  83
  84
  85 #define DEFAULTENCODING_SIZE 64
  86 static char wxPyDefaultEncoding[DEFAULTENCODING_SIZE] = "ascii";
  87
  88 static PyObject* wxPython_dict = NULL;
  89 static PyObject* wxPyAssertionError = NULL;
  90 static PyObject* wxPyNoAppError = NULL;
  91
  92 PyObject* wxPyPtrTypeMap = NULL;
  93
  94
  95 #ifdef __WXMSW__             // If building for win32...
  96 //----------------------------------------------------------------------
  97 // This gets run when the DLL is loaded.  We just need to save a handle.
  98 //----------------------------------------------------------------------
  99
 100 extern "C"
 101 BOOL WINAPI DllMain(
 102     HINSTANCE   hinstDLL,    // handle to DLL module
 103     DWORD       fdwReason,   // reason for calling function
 104     LPVOID      lpvReserved  // reserved
 105    )
 106 {
 107     // If wxPython is embedded in another wxWidgets app then
 108     // the instance has already been set.
 109     if (! wxGetInstance())
 110         wxSetInstance(hinstDLL);
 111     return true;
 112 }
 113 #endif
 114
 115 //----------------------------------------------------------------------
 116 // Classes for implementing the wxp main application shell.
 117 //----------------------------------------------------------------------
 118
 119 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
 120
 121
 122 wxPyApp::wxPyApp() {
 123     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 124     m_startupComplete = false;
 125 }
 126
 127
 128 wxPyApp::~wxPyApp() {
 129     wxPythonApp = NULL;
 130     wxApp::SetInstance(NULL);
 131 }
 132
 133
 134 // This one isn't acutally called...  We fake it with _BootstrapApp
 135 bool wxPyApp::OnInit() {
 136     return false;
 137 }
 138
 139
 140 int  wxPyApp::MainLoop() {
 141     int retval = 0;
 142
 143     DeletePendingObjects();
 144     bool initialized = wxTopLevelWindows.GetCount() != 0;
 145     if (initialized) {
 146         if ( m_exitOnFrameDelete == Later ) {
 147             m_exitOnFrameDelete = Yes;
 148         }
 149
 150         retval = wxApp::MainLoop();
 151         OnExit();
 152     }
 153     return retval;
 154 }
 155
 156
 157 bool wxPyApp::OnInitGui() {
 158     bool rval=true;
 159     wxApp::OnInitGui();  // in this case always call the base class version
 160     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 161     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 162         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 163     wxPyEndBlockThreads(blocked);
 164     return rval;
 165 }
 166
 167
 168 int wxPyApp::OnExit() {
 169     int rval=0;
 170     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 171     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 172         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 173     wxPyEndBlockThreads(blocked);
 174     wxApp::OnExit();  // in this case always call the base class version
 175     return rval;
 176 }
 177
 178
 179 #ifdef __WXDEBUG__
 180 void wxPyApp::OnAssert(const wxChar *file,
 181                      int line,
 182                      const wxChar *cond,
 183                      const wxChar *msg) {
 184
 185     // if we're not fully initialized then just log the error
 186     if (! m_startupComplete) {
 187         wxString buf;
 188         buf.Alloc(4096);
 189         buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 190                    file, line, cond);
 191         if (msg != NULL) {
 192             buf += wxT(": ");
 193             buf += msg;
 194         }
 195         wxLogDebug(buf);
 196         return;
 197     }
 198
 199     // If the OnAssert is overloaded in the Python class then call it...
 200     bool found;
 201     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 202     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 203         PyObject* fso = wx2PyString(file);
 204         PyObject* cso = wx2PyString(file);
 205         PyObject* mso;
 206         if (msg != NULL)
 207             mso = wx2PyString(file);
 208         else {
 209             mso = Py_None; Py_INCREF(Py_None);
 210         }
 211         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 212         Py_DECREF(fso);
 213         Py_DECREF(cso);
 214         Py_DECREF(mso);
 215     }
 216     wxPyEndBlockThreads(blocked);
 217
 218     // ...otherwise do our own thing with it
 219     if (! found) {
 220         // ignore it?
 221         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 222             return;
 223
 224         // turn it into a Python exception?
 225         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 226             wxString buf;
 227             buf.Alloc(4096);
 228             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 229             if (msg != NULL) {
 230                 buf += wxT(": ");
 231                 buf += msg;
 232             }
 233
 234             // set the exception
 235             wxPyBlock_t blocked = wxPyBeginBlockThreads();
 236             PyObject* s = wx2PyString(buf);
 237             PyErr_SetObject(wxPyAssertionError, s);
 238             Py_DECREF(s);
 239             wxPyEndBlockThreads(blocked);
 240
 241             // Now when control returns to whatever API wrapper was called from
 242             // Python it should detect that an exception is set and will return
 243             // NULL, signalling the exception to Python.
 244         }
 245
 246         // Send it to the normal log destination, but only if
 247         // not _DIALOG because it will call this too
 248         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 249             wxString buf;
 250             buf.Alloc(4096);
 251             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 252                        file, line, cond);
 253             if (msg != NULL) {
 254                 buf += wxT(": ");
 255                 buf += msg;
 256             }
 257             wxLogDebug(buf);
 258         }
 259
 260         // do the normal wx assert dialog?
 261         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 262             wxApp::OnAssert(file, line, cond, msg);
 263     }
 264 }
 265 #endif
 266
 267     // For catching Apple Events
 268 void wxPyApp::MacOpenFile(const wxString &fileName)
 269 {
 270     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 271     if (wxPyCBH_findCallback(m_myInst, "MacOpenFile")) {
 272         PyObject* s = wx2PyString(fileName);
 273         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 274         Py_DECREF(s);
 275     }
 276     wxPyEndBlockThreads(blocked);
 277 }
 278
 279 void wxPyApp::MacPrintFile(const wxString &fileName)
 280 {
 281     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 282     if (wxPyCBH_findCallback(m_myInst, "MacPrintFile")) {
 283         PyObject* s = wx2PyString(fileName);
 284         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 285         Py_DECREF(s);
 286     }
 287     wxPyEndBlockThreads(blocked);
 288 }
 289
 290 void wxPyApp::MacNewFile()
 291 {
 292     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 293     if (wxPyCBH_findCallback(m_myInst, "MacNewFile"))
 294         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 295     wxPyEndBlockThreads(blocked);
 296 }
 297
 298 void wxPyApp::MacReopenApp()
 299 {
 300     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 301     if (wxPyCBH_findCallback(m_myInst, "MacReopenApp"))
 302         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 303     wxPyEndBlockThreads(blocked);
 304 }
 305
 306
 307 /*static*/
 308 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 309 #ifdef __WXMAC__
 310     return s_macSupportPCMenuShortcuts;
 311 #else
 312     return 0;
 313 #endif
 314 }
 315
 316 /*static*/
 317 long wxPyApp::GetMacAboutMenuItemId() {
 318 #ifdef __WXMAC__
 319     return s_macAboutMenuItemId;
 320 #else
 321     return 0;
 322 #endif
 323 }
 324
 325 /*static*/
 326 long wxPyApp::GetMacPreferencesMenuItemId() {
 327 #ifdef __WXMAC__
 328     return s_macPreferencesMenuItemId;
 329 #else
 330     return 0;
 331 #endif
 332 }
 333
 334 /*static*/
 335 long wxPyApp::GetMacExitMenuItemId() {
 336 #ifdef __WXMAC__
 337     return s_macExitMenuItemId;
 338 #else
 339     return 0;
 340 #endif
 341 }
 342
 343 /*static*/
 344 wxString wxPyApp::GetMacHelpMenuTitleName() {
 345 #ifdef __WXMAC__
 346     return s_macHelpMenuTitleName;
 347 #else
 348     return wxEmptyString;
 349 #endif
 350 }
 351
 352 /*static*/
 353 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 354 #ifdef __WXMAC__
 355     s_macSupportPCMenuShortcuts = val;
 356 #endif
 357 }
 358
 359 /*static*/
 360 void wxPyApp::SetMacAboutMenuItemId(long val) {
 361 #ifdef __WXMAC__
 362     s_macAboutMenuItemId = val;
 363 #endif
 364 }
 365
 366 /*static*/
 367 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 368 #ifdef __WXMAC__
 369     s_macPreferencesMenuItemId = val;
 370 #endif
 371 }
 372
 373 /*static*/
 374 void wxPyApp::SetMacExitMenuItemId(long val) {
 375 #ifdef __WXMAC__
 376     s_macExitMenuItemId = val;
 377 #endif
 378 }
 379
 380 /*static*/
 381 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 382 #ifdef __WXMAC__
 383     s_macHelpMenuTitleName = val;
 384 #endif
 385 }
 386
 387
 388 // This finishes the initialization of wxWindows and then calls the OnInit
 389 // that should be present in the derived (Python) class.
 390 void wxPyApp::_BootstrapApp()
 391 {
 392     static      bool haveInitialized = false;
 393     bool        result;
 394     wxPyBlock_t     blocked;
 395     PyObject*   retval = NULL;
 396     PyObject*   pyint  = NULL;
 397
 398
 399     // Only initialize wxWidgets once
 400     if (! haveInitialized) {
 401
 402         // Get any command-line args passed to this program from the sys module
 403         int    argc = 0;
 404         char** argv = NULL;
 405         blocked = wxPyBeginBlockThreads();
 406
 407         PyObject* sysargv = PySys_GetObject("argv");
 408         PyObject* executable = PySys_GetObject("executable");
 409
 410         if (sysargv != NULL && executable != NULL) {
 411             argc = PyList_Size(sysargv) + 1;
 412             argv = new char*[argc+1];
 413             argv[0] = strdup(PyString_AsString(executable));
 414             int x;
 415             for(x=1; x<argc; x++) {
 416                 PyObject *pyArg = PyList_GetItem(sysargv, x-1);
 417                 argv[x] = strdup(PyString_AsString(pyArg));
 418             }
 419             argv[argc] = NULL;
 420         }
 421         wxPyEndBlockThreads(blocked);
 422
 423         // Initialize wxWidgets
 424         result = wxEntryStart(argc, argv);
 425         // wxApp takes ownership of the argv array, don't delete it here
 426
 427         blocked = wxPyBeginBlockThreads();
 428         if (! result)  {
 429             PyErr_SetString(PyExc_SystemError,
 430                             "wxEntryStart failed, unable to initialize wxWidgets!"
 431 #ifdef __WXGTK__
 432                             "  (Is DISPLAY set properly?)"
 433 #endif
 434                 );
 435             goto error;
 436         }
 437
 438         // On wxGTK the locale will be changed to match the system settings,
 439         // but Python before 2.4 needs to have LC_NUMERIC set to "C" in order
 440         // for the floating point conversions and such to work right.
 441 #if defined(__WXGTK__) && PY_VERSION_HEX < 0x02040000
 442         setlocale(LC_NUMERIC, "C");
 443 #endif
 444
 445 //        wxSystemOptions::SetOption(wxT("mac.textcontrol-use-mlte"), 1);
 446
 447         // The stock objects were all NULL when they were loaded into
 448         // SWIG generated proxies, so re-init those now...
 449         wxPy_ReinitStockObjects(3);
 450
 451         wxPyEndBlockThreads(blocked);
 452         haveInitialized = true;
 453     }
 454     else {
 455         this->argc = 0;
 456         this->argv = NULL;
 457     }
 458
 459
 460     // It's now ok to generate exceptions for assertion errors.
 461     wxPythonApp->SetStartupComplete(true);
 462
 463     // Call the Python wxApp's OnInit function
 464     blocked = wxPyBeginBlockThreads();
 465     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 466
 467         PyObject* method = m_myInst.GetLastFound();
 468         PyObject* argTuple = PyTuple_New(0);
 469         retval = PyEval_CallObject(method, argTuple);
 470         Py_DECREF(argTuple);
 471         Py_DECREF(method);
 472         if (retval == NULL)
 473             goto error;
 474
 475         pyint = PyNumber_Int(retval);
 476         if (! pyint) {
 477             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 478             goto error;
 479         }
 480         result = PyInt_AS_LONG(pyint);
 481     }
 482     else {
 483         // Is it okay if there is no OnInit?  Probably so...
 484         result = true;
 485     }
 486
 487     if (! result) {
 488         PyErr_SetString(PyExc_SystemExit, "OnInit returned false, exiting...");
 489     }
 490
 491  error:
 492     Py_XDECREF(retval);
 493     Py_XDECREF(pyint);
 494
 495     wxPyEndBlockThreads(blocked);
 496 };
 497
 498 //---------------------------------------------------------------------
 499 //----------------------------------------------------------------------
 500
 501
 502 #if 0
 503 static char* wxPyCopyCString(const wxChar* src)
 504 {
 505     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 506     size_t len = strlen(buff);
 507     char*  dest = new char[len+1];
 508     strcpy(dest, buff);
 509     return dest;
 510 }
 511
 512 #if wxUSE_UNICODE
 513 static char* wxPyCopyCString(const char* src)   // we need a char version too
 514 {
 515     size_t len = strlen(src);
 516     char*  dest = new char[len+1];
 517     strcpy(dest, src);
 518     return dest;
 519 }
 520 #endif
 521
 522 static wxChar* wxPyCopyWString(const char *src)
 523 {
 524     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 525     wxString str(src, *wxConvCurrent);
 526     return copystring(str);
 527 }
 528
 529 #if wxUSE_UNICODE
 530 static wxChar* wxPyCopyWString(const wxChar *src)
 531 {
 532     return copystring(src);
 533 }
 534 #endif
 535 #endif
 536
 537
 538 inline const char* dropwx(const char* name) {
 539     if (name[0] == 'w' && name[1] == 'x')
 540         return name+2;
 541     else
 542         return name;
 543 }
 544
 545 //----------------------------------------------------------------------
 546
 547 // This function is called when the wx._core_ module is imported to do some
 548 // initial setup.  (Before there is a wxApp object.)  The rest happens in
 549 // wxPyApp::_BootstrapApp
 550 void __wxPyPreStart(PyObject* moduleDict)
 551 {
 552
 553 #ifdef __WXMSW__
 554 //     wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF
 555 //                     | _CRTDBG_CHECK_ALWAYS_DF
 556 //                     | _CRTDBG_DELAY_FREE_MEM_DF
 557 //         );
 558 #endif
 559
 560 #ifdef WXP_WITH_THREAD
 561 #if wxPyUSE_GIL_STATE
 562     PyEval_InitThreads();
 563 #else
 564     PyEval_InitThreads();
 565     wxPyTStates = new wxPyThreadStateArray;
 566     wxPyTMutex = new wxMutex;
 567
 568     // Save the current (main) thread state in our array
 569     PyThreadState* tstate = wxPyBeginAllowThreads();
 570     wxPyEndAllowThreads(tstate);
 571 #endif
 572 #endif
 573
 574     // Ensure that the build options in the DLL (or whatever) match this build
 575     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 576
 577     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
 578     wxPy_ReinitStockObjects(1);
 579
 580     wxInitAllImageHandlers();
 581 }
 582
 583
 584
 585 void __wxPyCleanup() {
 586     wxPyDoingCleanup = true;
 587     if (wxPyDoCleanup) {
 588         wxPyDoCleanup = false;
 589         wxEntryCleanup();
 590     }
 591 #ifdef WXP_WITH_THREAD
 592 #if !wxPyUSE_GIL_STATE
 593     delete wxPyTMutex;
 594     wxPyTMutex = NULL;
 595     wxPyTStates->Empty();
 596     delete wxPyTStates;
 597     wxPyTStates = NULL;
 598 #endif
 599 #endif
 600 }
 601
 602
 603 // Save a reference to the dictionary of the wx._core module, and inject
 604 // a few more things into it.
 605 PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 606 {
 607
 608     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 609         return NULL;
 610
 611     if (!PyDict_Check(wxPython_dict)) {
 612         PyErr_SetString(PyExc_TypeError,
 613                         "_wxPySetDictionary must have dictionary object!");
 614         return NULL;
 615     }
 616
 617     if (! wxPyPtrTypeMap)
 618         wxPyPtrTypeMap = PyDict_New();
 619     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 620
 621     // Create an exception object to use for wxASSERTions
 622     wxPyAssertionError = PyErr_NewException("wx._core.PyAssertionError",
 623                                             PyExc_AssertionError, NULL);
 624     PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
 625
 626     // Create an exception object to use when the app object hasn't been created yet
 627     wxPyNoAppError = PyErr_NewException("wx._core.PyNoAppError",
 628                                         PyExc_RuntimeError, NULL);
 629     PyDict_SetItemString(wxPython_dict, "PyNoAppError", wxPyNoAppError);
 630
 631
 632
 633 #ifdef __WXMOTIF__
 634 #define wxPlatform "__WXMOTIF__"
 635 #define wxPlatName "wxMotif"
 636 #endif
 637 #ifdef __WXX11__
 638 #define wxPlatform "__WXX11__"
 639 #define wxPlatName "wxX11"
 640 #endif
 641 #ifdef __WXGTK__
 642 #define wxPlatform "__WXGTK__"
 643 #define wxPlatName "wxGTK"
 644 #endif
 645 #ifdef __WXMSW__
 646 #define wxPlatform "__WXMSW__"
 647 #define wxPlatName "wxMSW"
 648 #endif
 649 #ifdef __WXMAC__
 650 #define wxPlatform "__WXMAC__"
 651 #define wxPlatName "wxMac"
 652 #endif
 653
 654 #ifdef __WXDEBUG__
 655     int wxdebug = 1;
 656 #else
 657     int wxdebug = 0;
 658 #endif
 659
 660     // These should be deprecated in favor of the PlatformInfo tuple built below...
 661     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
 662     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 663     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 664
 665     // Make a tuple of strings that gives more info about the platform.
 666     PyObject* PlatInfo = PyList_New(0);
 667     PyObject* obj;
 668
 669 #define _AddInfoString(st) \
 670     obj = PyString_FromString(st); \
 671     PyList_Append(PlatInfo, obj); \
 672     Py_DECREF(obj)
 673
 674     _AddInfoString(wxPlatform);
 675     _AddInfoString(wxPlatName);
 676 #if wxUSE_UNICODE
 677     _AddInfoString("unicode");
 678 #else
 679     _AddInfoString("ansi");
 680 #endif
 681 #ifdef __WXGTK__
 682 #ifdef __WXGTK20__
 683     _AddInfoString("gtk2");
 684 #else
 685     _AddInfoString("gtk1");
 686 #endif
 687 #endif
 688 #ifdef __WXDEBUG__
 689     _AddInfoString("wx-assertions-on");
 690 #else
 691     _AddInfoString("wx-assertions-off");
 692 #endif
 693
 694 #undef _AddInfoString
 695
 696     PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo);
 697     Py_DECREF(PlatInfo);
 698     PyDict_SetItemString(wxPython_dict, "PlatformInfo", PlatInfoTuple);
 699
 700     RETURN_NONE();
 701 }
 702
 703
 704 //---------------------------------------------------------------------------
 705
 706 // Python's PyInstance_Check does not return True for instances of new-style
 707 // classes.  This should get close enough for both new and old classes but I
 708 // should re-evaluate the need for doing instance checks...
 709 bool wxPyInstance_Check(PyObject* obj) {
 710     return PyObject_HasAttrString(obj, "__class__") != 0;
 711 }
 712
 713
 714 // This one checks if the object is an instance of a SWIG proxy class (it has
 715 // a .this attribute)
 716 bool wxPySwigInstance_Check(PyObject* obj) {
 717     return PyObject_HasAttrString(obj, "this") != 0;
 718 }
 719
 720 //---------------------------------------------------------------------------
 721
 722 // The stock objects are no longer created when the wx._core_ module is
 723 // imported, but only after the app object has been created.  The
 724 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 725 // objects though various stages of evolution:
 726 //
 727 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 728 //           object will be created (otherwise SWIG will just use None.)
 729 //
 730 //   pass 2: After the module has been imported and the python proxys have
 731 //           been created, then set the __class__ to be _wxPyUnbornObject so
 732 //           it will catch any access to the object and will raise an exception.
 733 //
 734 //   pass 3: Finally, from BootstrapApp patch things up so the stock objects
 735 //           can be used.
 736
 737
 738 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 739 {
 740     wxPy_ReinitStockObjects(2);
 741     RETURN_NONE();
 742 }
 743
 744
 745 static void rsoPass2(const char* name)
 746 {
 747     static PyObject* unbornObjectClass = NULL;
 748     PyObject* obj;
 749
 750     if (unbornObjectClass == NULL) {
 751         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 752         Py_INCREF(unbornObjectClass);
 753     }
 754
 755     // Find the object instance
 756     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 757     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 758     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 759
 760     // Change its class
 761     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 762
 763 }
 764
 765 static void rsoPass3(const char* name, const char* classname, void* ptr)
 766 {
 767     PyObject* obj;
 768     PyObject* classobj;
 769     PyObject* ptrobj;
 770
 771     // Find the object instance
 772     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 773     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 774     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 775
 776     // Find the class object and put it back in the instance
 777     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 778     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 779     PyObject_SetAttrString(obj, "__class__",  classobj);
 780
 781     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 782     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 783     PyObject_SetAttrString(obj, "this", ptrobj);
 784     Py_DECREF(ptrobj);
 785 }
 786
 787
 788
 789 void wxPy_ReinitStockObjects(int pass)
 790 {
 791
 792     // If there is already an App object then wxPython is probably embedded in
 793     // a wx C++ application, so there is no need to do all this.
 794     static bool embedded = false;
 795     if ((pass == 1 || pass == 2) && wxTheApp) {
 796         embedded = true;
 797         return;
 798     }
 799     if (pass == 3 && embedded)
 800         return;
 801
 802
 803 #define REINITOBJ(name, classname) \
 804     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 805     else if (pass == 2) { rsoPass2(#name); } \
 806     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 807
 808
 809 #define REINITOBJ2(name, classname) \
 810     if (pass == 1) { } \
 811     else if (pass == 2) { rsoPass2(#name); } \
 812     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 813
 814
 815     REINITOBJ(wxNORMAL_FONT, wxFont);
 816     REINITOBJ(wxSMALL_FONT, wxFont);
 817     REINITOBJ(wxITALIC_FONT, wxFont);
 818     REINITOBJ(wxSWISS_FONT, wxFont);
 819
 820     REINITOBJ(wxRED_PEN, wxPen);
 821     REINITOBJ(wxCYAN_PEN, wxPen);
 822     REINITOBJ(wxGREEN_PEN, wxPen);
 823     REINITOBJ(wxBLACK_PEN, wxPen);
 824     REINITOBJ(wxWHITE_PEN, wxPen);
 825     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 826     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 827     REINITOBJ(wxGREY_PEN, wxPen);
 828     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 829     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 830
 831     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 832     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 833     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 834     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 835     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 836     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 837     REINITOBJ(wxRED_BRUSH, wxBrush);
 838     REINITOBJ(wxGREY_BRUSH, wxBrush);
 839     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 840     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 841
 842     REINITOBJ(wxBLACK, wxColour);
 843     REINITOBJ(wxWHITE, wxColour);
 844     REINITOBJ(wxRED, wxColour);
 845     REINITOBJ(wxBLUE, wxColour);
 846     REINITOBJ(wxGREEN, wxColour);
 847     REINITOBJ(wxCYAN, wxColour);
 848     REINITOBJ(wxLIGHT_GREY, wxColour);
 849
 850     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 851     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 852     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 853
 854     REINITOBJ2(wxNullBitmap, wxBitmap);
 855     REINITOBJ2(wxNullIcon, wxIcon);
 856     REINITOBJ2(wxNullCursor, wxCursor);
 857     REINITOBJ2(wxNullPen, wxPen);
 858     REINITOBJ2(wxNullBrush, wxBrush);
 859     REINITOBJ2(wxNullPalette, wxPalette);
 860     REINITOBJ2(wxNullFont, wxFont);
 861     REINITOBJ2(wxNullColour, wxColour);
 862
 863     REINITOBJ(wxTheFontList, wxFontList);
 864     REINITOBJ(wxThePenList, wxPenList);
 865     REINITOBJ(wxTheBrushList, wxBrushList);
 866     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 867
 868
 869     REINITOBJ2(wxDefaultValidator, wxValidator);
 870     REINITOBJ2(wxNullImage, wxImage);
 871     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 872
 873 #undef REINITOBJ
 874 #undef REINITOBJ2
 875 }
 876
 877 //---------------------------------------------------------------------------
 878
 879 // Check for existence of a wxApp, setting an exception if there isn't one.
 880 // This doesn't need to aquire the GIL because it should only be called from
 881 // an %exception before the lock is released.
 882
 883 bool wxPyCheckForApp() {
 884     if (wxTheApp != NULL)
 885         return true;
 886     else {
 887         PyErr_SetString(wxPyNoAppError, "The wx.App object must be created first!");
 888         return false;
 889     }
 890 }
 891
 892 //---------------------------------------------------------------------------
 893
 894 void wxPyUserData_dtor(wxPyUserData* self) {
 895     if (! wxPyDoingCleanup) {
 896         wxPyBlock_t blocked = wxPyBeginBlockThreads();
 897         Py_DECREF(self->m_obj);
 898         self->m_obj = NULL;
 899         wxPyEndBlockThreads(blocked);
 900     }
 901 }
 902
 903
 904 void wxPyClientData_dtor(wxPyClientData* self) {
 905     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 906                                         // may have already garbage collected the object...
 907         if (self->m_incRef) {
 908             wxPyBlock_t blocked = wxPyBeginBlockThreads();
 909             Py_DECREF(self->m_obj);
 910             wxPyEndBlockThreads(blocked);
 911         }
 912         self->m_obj = NULL;
 913     }
 914 }
 915
 916
 917
 918 // This is called when an OOR controled object is being destroyed.  Although
 919 // the C++ object is going away there is no way to force the Python object
 920 // (and all references to it) to die too.  This causes problems (crashes) in
 921 // wxPython when a python shadow object attempts to call a C++ method using
 922 // the now bogus pointer... So to try and prevent this we'll do a little black
 923 // magic and change the class of the python instance to a class that will
 924 // raise an exception for any attempt to call methods with it.  See
 925 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 926 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 927
 928     static PyObject* deadObjectClass = NULL;
 929
 930     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 931     if (deadObjectClass == NULL) {
 932         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 933         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 934         // will lead to a deadlock when it tries to aquire the GIL again.
 935         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 936         Py_INCREF(deadObjectClass);
 937     }
 938
 939
 940     // Only if there is more than one reference to the object and we are
 941     // holding the OOR reference:
 942     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 && self->m_incRef) {
 943         // bool isInstance = wxPyInstance_Check(self->m_obj);
 944         // TODO same here
 945         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 946
 947         // Call __del__, if there is one.
 948         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 949         if (func) {
 950             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 951             Py_XDECREF(rv);
 952             Py_DECREF(func);
 953         }
 954         if (PyErr_Occurred())
 955             PyErr_Clear();      // just ignore it for now
 956
 957
 958         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 959         if (dict) {
 960             // Clear the instance's dictionary
 961             PyDict_Clear(dict);
 962
 963             // put the name of the old class into the instance, and then reset the
 964             // class to be the dead class.
 965             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 966             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 967             PyDict_SetItemString(dict, "_name", name);
 968             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 969             //Py_INCREF(deadObjectClass);
 970             Py_DECREF(klass);
 971             Py_DECREF(name);
 972         }
 973     }
 974
 975     // m_obj is DECREF'd in the base class dtor...
 976     wxPyEndBlockThreads(blocked);
 977 }
 978
 979
 980 //---------------------------------------------------------------------------
 981 // Stuff used by OOR to find the right wxPython class type to return and to
 982 // build it.
 983
 984
 985 // The pointer type map is used when the "pointer" type name generated by SWIG
 986 // is not the same as the shadow class name, for example wxPyTreeCtrl
 987 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 988 // so we'll just make it a Python dictionary in the wx module's namespace.
 989 // (See __wxSetDictionary)
 990 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 991     if (! wxPyPtrTypeMap)
 992         wxPyPtrTypeMap = PyDict_New();
 993     PyDict_SetItemString(wxPyPtrTypeMap,
 994                          (char*)commonName,
 995                          PyString_FromString((char*)ptrName));
 996 }
 997
 998
 999
1000
1001 PyObject*  wxPyMake_wxObject(wxObject* source, bool setThisOwn, bool checkEvtHandler) {
1002     PyObject* target = NULL;
1003     bool      isEvtHandler = false;
1004     bool      isSizer = false;
1005
1006     if (source) {
1007         // If it's derived from wxEvtHandler then there may
1008         // already be a pointer to a Python object that we can use
1009         // in the OOR data.
1010         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
1011             isEvtHandler = true;
1012             wxEvtHandler* eh = (wxEvtHandler*)source;
1013             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
1014             if (data) {
1015                 target = data->m_obj;
1016                 if (target)
1017                     Py_INCREF(target);
1018             }
1019         }
1020
1021         // Also check for wxSizer
1022         if (!target && wxIsKindOf(source, wxSizer)) {
1023             isSizer = true;
1024             wxSizer* sz = (wxSizer*)source;
1025             wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
1026             if (data) {
1027                 target = data->m_obj;
1028                 if (target)
1029                     Py_INCREF(target);
1030             }
1031         }
1032
1033         if (! target) {
1034             // Otherwise make it the old fashioned way by making a new shadow
1035             // object and putting this pointer in it.  Look up the class
1036             // heirarchy until we find a class name that is located in the
1037             // python module.
1038             const wxClassInfo* info   = source->GetClassInfo();
1039             wxString           name   = info->GetClassName();
1040             bool               exists = wxPyCheckSwigType(name);
1041             while (info && !exists) {
1042                 info = info->GetBaseClass1();
1043                 name = info->GetClassName();
1044                 exists = wxPyCheckSwigType(name);
1045             }
1046             if (info) {
1047                 target = wxPyConstructObject((void*)source, name, setThisOwn);
1048                 if (target && isEvtHandler)
1049                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
1050                 if (target && isSizer)
1051                     ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
1052             } else {
1053                 wxString msg(wxT("wxPython class not found for "));
1054                 msg += source->GetClassInfo()->GetClassName();
1055                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
1056                 target = NULL;
1057             }
1058         }
1059     } else {  // source was NULL so return None.
1060         Py_INCREF(Py_None); target = Py_None;
1061     }
1062     return target;
1063 }
1064
1065
1066 PyObject*  wxPyMake_wxSizer(wxSizer* source, bool setThisOwn) {
1067
1068     return wxPyMake_wxObject(source, setThisOwn);
1069 }
1070
1071
1072 //---------------------------------------------------------------------------
1073
1074
1075 #ifdef WXP_WITH_THREAD
1076 #if !wxPyUSE_GIL_STATE
1077
1078 inline
1079 unsigned long wxPyGetCurrentThreadId() {
1080     return wxThread::GetCurrentId();
1081 }
1082
1083 static wxPyThreadState gs_shutdownTState;
1084
1085 static
1086 wxPyThreadState* wxPyGetThreadState() {
1087     if (wxPyTMutex == NULL) // Python is shutting down...
1088         return &gs_shutdownTState;
1089
1090     unsigned long ctid = wxPyGetCurrentThreadId();
1091     wxPyThreadState* tstate = NULL;
1092
1093     wxPyTMutex->Lock();
1094     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1095         wxPyThreadState& info = wxPyTStates->Item(i);
1096         if (info.tid == ctid) {
1097             tstate = &info;
1098             break;
1099         }
1100     }
1101     wxPyTMutex->Unlock();
1102     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
1103     return tstate;
1104 }
1105
1106
1107 static
1108 void wxPySaveThreadState(PyThreadState* tstate) {
1109     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
1110         gs_shutdownTState.tstate = tstate;
1111         return;
1112     }
1113     unsigned long ctid = wxPyGetCurrentThreadId();
1114     wxPyTMutex->Lock();
1115     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1116         wxPyThreadState& info = wxPyTStates->Item(i);
1117         if (info.tid == ctid) {
1118 #if 0
1119             if (info.tstate != tstate)
1120                 wxLogMessage("*** tstate mismatch!???");
1121 #endif
1122             info.tstate = tstate;    // allow for transient tstates
1123             // Normally it will never change, but apparently COM callbacks
1124             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
1125             // tstate which will then be garbage the next time we try to use
1126             // it...
1127
1128             wxPyTMutex->Unlock();
1129             return;
1130         }
1131     }
1132     // not found, so add it...
1133     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
1134     wxPyTMutex->Unlock();
1135 }
1136
1137 #endif
1138 #endif
1139
1140
1141
1142 // Calls from Python to wxWindows code are wrapped in calls to these
1143 // functions:
1144
1145 PyThreadState* wxPyBeginAllowThreads() {
1146 #ifdef WXP_WITH_THREAD
1147     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
1148 #if !wxPyUSE_GIL_STATE
1149     wxPySaveThreadState(saved);
1150 #endif
1151     return saved;
1152 #else
1153     return NULL;
1154 #endif
1155 }
1156
1157 void wxPyEndAllowThreads(PyThreadState* saved) {
1158 #ifdef WXP_WITH_THREAD
1159     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
1160 #endif
1161 }
1162
1163
1164
1165 // Calls from wxWindows back to Python code, or even any PyObject
1166 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
1167
1168 wxPyBlock_t wxPyBeginBlockThreads() {
1169 #ifdef WXP_WITH_THREAD
1170     if (! Py_IsInitialized()) {
1171         return (wxPyBlock_t)0;
1172     }
1173 #if wxPyUSE_GIL_STATE
1174     PyGILState_STATE state = PyGILState_Ensure();
1175     return state;
1176 #else
1177     PyThreadState *current = _PyThreadState_Current;
1178
1179     // Only block if there wasn't already a tstate, or if the current one is
1180     // not the one we are wanting to change to.  This should prevent deadlock
1181     // if there are nested calls to wxPyBeginBlockThreads
1182     wxPyBlock_t blocked = false;
1183     wxPyThreadState* tstate = wxPyGetThreadState();
1184     if (current != tstate->tstate) {
1185         PyEval_RestoreThread(tstate->tstate);
1186         blocked = true;
1187     }
1188     return blocked;
1189 #endif
1190 #else
1191     return (wxPyBlock_t)0;
1192 #endif
1193 }
1194
1195
1196 void wxPyEndBlockThreads(wxPyBlock_t blocked) {
1197 #ifdef WXP_WITH_THREAD
1198     if (! Py_IsInitialized()) {
1199         return;
1200     }
1201 #if wxPyUSE_GIL_STATE
1202     PyGILState_Release(blocked);
1203 #else
1204     // Only unblock if we blocked in the last call to wxPyBeginBlockThreads.
1205     // The value of blocked passed in needs to be the same as that returned
1206     // from wxPyBeginBlockThreads at the same nesting level.
1207     if ( blocked ) {
1208         PyEval_SaveThread();
1209     }
1210 #endif
1211 #endif
1212 }
1213
1214
1215 //---------------------------------------------------------------------------
1216 // wxPyInputStream and wxPyCBInputStream methods
1217
1218
1219 void wxPyInputStream::close() {
1220     /* do nothing for now */
1221 }
1222
1223 void wxPyInputStream::flush() {
1224     /* do nothing for now */
1225 }
1226
1227 bool wxPyInputStream::eof() {
1228     if (m_wxis)
1229         return m_wxis->Eof();
1230     else
1231         return true;
1232 }
1233
1234 wxPyInputStream::~wxPyInputStream() {
1235     if (m_wxis)
1236         delete m_wxis;
1237 }
1238
1239
1240
1241
1242 PyObject* wxPyInputStream::read(int size) {
1243     PyObject* obj = NULL;
1244     wxMemoryBuffer buf;
1245     const int BUFSIZE = 1024;
1246
1247     // check if we have a real wxInputStream to work with
1248     if (!m_wxis) {
1249         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1250         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1251         wxPyEndBlockThreads(blocked);
1252         return NULL;
1253     }
1254
1255     if (size < 0) {
1256         // read while bytes are available on the stream
1257         while ( m_wxis->CanRead() ) {
1258             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1259             buf.UngetAppendBuf(m_wxis->LastRead());
1260         }
1261
1262     } else {  // Read only size number of characters
1263         m_wxis->Read(buf.GetWriteBuf(size), size);
1264         buf.UngetWriteBuf(m_wxis->LastRead());
1265     }
1266
1267     // error check
1268     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1269     wxStreamError err = m_wxis->GetLastError();
1270     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1271         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1272     }
1273     else {
1274         // We use only strings for the streams, not unicode
1275         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1276     }
1277     wxPyEndBlockThreads(blocked);
1278     return obj;
1279 }
1280
1281
1282 PyObject* wxPyInputStream::readline(int size) {
1283     PyObject* obj = NULL;
1284     wxMemoryBuffer buf;
1285     int i;
1286     char ch;
1287
1288     // check if we have a real wxInputStream to work with
1289     if (!m_wxis) {
1290         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1291         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1292         wxPyEndBlockThreads(blocked);
1293         return NULL;
1294     }
1295
1296     // read until \n or byte limit reached
1297     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1298         ch = m_wxis->GetC();
1299         buf.AppendByte(ch);
1300     }
1301
1302     // errorcheck
1303     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1304     wxStreamError err = m_wxis->GetLastError();
1305     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1306         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1307     }
1308     else {
1309         // We use only strings for the streams, not unicode
1310         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1311     }
1312     wxPyEndBlockThreads(blocked);
1313     return obj;
1314 }
1315
1316
1317 PyObject* wxPyInputStream::readlines(int sizehint) {
1318     PyObject* pylist;
1319
1320     // check if we have a real wxInputStream to work with
1321     if (!m_wxis) {
1322         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1323         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1324         wxPyEndBlockThreads(blocked);
1325         return NULL;
1326     }
1327
1328     // init list
1329     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1330     pylist = PyList_New(0);
1331     wxPyEndBlockThreads(blocked);
1332
1333     if (!pylist) {
1334         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1335         PyErr_NoMemory();
1336         wxPyEndBlockThreads(blocked);
1337         return NULL;
1338     }
1339
1340     // read sizehint bytes or until EOF
1341     int i;
1342     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1343         PyObject* s = this->readline();
1344         if (s == NULL) {
1345             wxPyBlock_t blocked = wxPyBeginBlockThreads();
1346             Py_DECREF(pylist);
1347             wxPyEndBlockThreads(blocked);
1348             return NULL;
1349         }
1350         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1351         PyList_Append(pylist, s);
1352         i += PyString_Size(s);
1353         wxPyEndBlockThreads(blocked);
1354     }
1355
1356     // error check
1357     wxStreamError err = m_wxis->GetLastError();
1358     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1359         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1360         Py_DECREF(pylist);
1361         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1362         wxPyEndBlockThreads(blocked);
1363         return NULL;
1364     }
1365
1366     return pylist;
1367 }
1368
1369
1370 void wxPyInputStream::seek(int offset, int whence) {
1371     if (m_wxis)
1372         m_wxis->SeekI(offset, wxSeekMode(whence));
1373 }
1374
1375 int wxPyInputStream::tell(){
1376     if (m_wxis)
1377         return m_wxis->TellI();
1378     else return 0;
1379 }
1380
1381
1382
1383
1384 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1385     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1386 {}
1387
1388 wxPyCBInputStream::wxPyCBInputStream(const wxPyCBInputStream& other)
1389 {
1390     m_read  = other.m_read;
1391     m_seek  = other.m_seek;
1392     m_tell  = other.m_tell;
1393     m_block = other.m_block;
1394     Py_INCREF(m_read);
1395     Py_INCREF(m_seek);
1396     Py_INCREF(m_tell);
1397 }
1398
1399
1400 wxPyCBInputStream::~wxPyCBInputStream() {
1401     wxPyBlock_t blocked;
1402     if (m_block) blocked = wxPyBeginBlockThreads();
1403     Py_XDECREF(m_read);
1404     Py_XDECREF(m_seek);
1405     Py_XDECREF(m_tell);
1406     if (m_block) wxPyEndBlockThreads(blocked);
1407 }
1408
1409
1410 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1411     wxPyBlock_t blocked;
1412     if (block) blocked = wxPyBeginBlockThreads();
1413
1414     PyObject* read = getMethod(py, "read");
1415     PyObject* seek = getMethod(py, "seek");
1416     PyObject* tell = getMethod(py, "tell");
1417
1418     if (!read) {
1419         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1420         Py_XDECREF(read);
1421         Py_XDECREF(seek);
1422         Py_XDECREF(tell);
1423         if (block) wxPyEndBlockThreads(blocked);
1424         return NULL;
1425     }
1426
1427     if (block) wxPyEndBlockThreads(blocked);
1428     return new wxPyCBInputStream(read, seek, tell, block);
1429 }
1430
1431
1432 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1433     return wxPyCBInputStream::create(py, block);
1434 }
1435
1436 wxPyCBInputStream* wxPyCBInputStream_copy(wxPyCBInputStream* other) {
1437     return new wxPyCBInputStream(*other);
1438 }
1439
1440 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1441     if (!PyObject_HasAttrString(py, name))
1442         return NULL;
1443     PyObject* o = PyObject_GetAttrString(py, name);
1444     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1445         Py_DECREF(o);
1446         return NULL;
1447     }
1448     return o;
1449 }
1450
1451
1452 wxFileOffset wxPyCBInputStream::GetLength() const {
1453     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1454     if (m_seek && m_tell) {
1455         wxFileOffset temp = self->OnSysTell();
1456         wxFileOffset ret = self->OnSysSeek(0, wxFromEnd);
1457         self->OnSysSeek(temp, wxFromStart);
1458         return ret;
1459     }
1460     else
1461         return wxInvalidOffset;
1462 }
1463
1464
1465 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1466     if (bufsize == 0)
1467         return 0;
1468
1469     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1470     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1471     PyObject* result = PyEval_CallObject(m_read, arglist);
1472     Py_DECREF(arglist);
1473
1474     size_t o = 0;
1475     if ((result != NULL) && PyString_Check(result)) {
1476         o = PyString_Size(result);
1477         if (o == 0)
1478             m_lasterror = wxSTREAM_EOF;
1479         if (o > bufsize)
1480             o = bufsize;
1481         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1482         Py_DECREF(result);
1483
1484     }
1485     else
1486         m_lasterror = wxSTREAM_READ_ERROR;
1487     wxPyEndBlockThreads(blocked);
1488     return o;
1489 }
1490
1491 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1492     m_lasterror = wxSTREAM_WRITE_ERROR;
1493     return 0;
1494 }
1495
1496
1497 wxFileOffset wxPyCBInputStream::OnSysSeek(wxFileOffset off, wxSeekMode mode) {
1498     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1499     PyObject* arglist = PyTuple_New(2);
1500
1501     if (sizeof(wxFileOffset) > sizeof(long))
1502         // wxFileOffset is a 64-bit value...
1503         PyTuple_SET_ITEM(arglist, 0, PyLong_FromLongLong(off));
1504     else
1505         PyTuple_SET_ITEM(arglist, 0, PyInt_FromLong(off));
1506
1507     PyTuple_SET_ITEM(arglist, 1, PyInt_FromLong(mode));
1508
1509
1510     PyObject* result = PyEval_CallObject(m_seek, arglist);
1511     Py_DECREF(arglist);
1512     Py_XDECREF(result);
1513     wxPyEndBlockThreads(blocked);
1514     return OnSysTell();
1515 }
1516
1517
1518 wxFileOffset wxPyCBInputStream::OnSysTell() const {
1519     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1520     PyObject* arglist = Py_BuildValue("()");
1521     PyObject* result = PyEval_CallObject(m_tell, arglist);
1522     Py_DECREF(arglist);
1523     wxFileOffset o = 0;
1524     if (result != NULL) {
1525         if (PyLong_Check(result))
1526             o = PyLong_AsLongLong(result);
1527         else
1528             o = PyInt_AsLong(result);
1529         Py_DECREF(result);
1530     };
1531     wxPyEndBlockThreads(blocked);
1532     return o;
1533 }
1534
1535 //----------------------------------------------------------------------
1536
1537 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1538
1539 wxPyCallback::wxPyCallback(PyObject* func) {
1540     m_func = func;
1541     Py_INCREF(m_func);
1542 }
1543
1544 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1545     m_func = other.m_func;
1546     Py_INCREF(m_func);
1547 }
1548
1549 wxPyCallback::~wxPyCallback() {
1550     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1551     Py_DECREF(m_func);
1552     wxPyEndBlockThreads(blocked);
1553 }
1554
1555
1556 #define wxPy_PRECALLINIT     "_preCallInit"
1557 #define wxPy_POSTCALLCLEANUP "_postCallCleanup"
1558
1559 // This function is used for all events destined for Python event handlers.
1560 void wxPyCallback::EventThunker(wxEvent& event) {
1561     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1562     PyObject*       func = cb->m_func;
1563     PyObject*       result;
1564     PyObject*       arg;
1565     PyObject*       tuple;
1566     bool            checkSkip = false;
1567
1568     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1569     wxString className = event.GetClassInfo()->GetClassName();
1570
1571     // If the event is one of these types then pass the original
1572     // event object instead of the one passed to us.
1573     if ( className == wxT("wxPyEvent") ) {
1574         arg =       ((wxPyEvent*)&event)->GetSelf();
1575         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1576     }
1577     else if ( className == wxT("wxPyCommandEvent") ) {
1578         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1579         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1580     }
1581     else {
1582         arg = wxPyConstructObject((void*)&event, className);
1583     }
1584
1585     if (!arg) {
1586         PyErr_Print();
1587     } else {
1588         // "intern" the pre/post method names to speed up the HasAttr
1589         static PyObject* s_preName  = NULL;
1590         static PyObject* s_postName = NULL;
1591         if (s_preName == NULL) {
1592             s_preName  = PyString_FromString(wxPy_PRECALLINIT);
1593             s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP);
1594         }
1595
1596         // Check if the event object needs some preinitialization
1597         if (PyObject_HasAttr(arg, s_preName)) {
1598             result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL);
1599             if ( result ) {
1600                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1601                 PyErr_Clear();       // Just in case...
1602             } else {
1603                 PyErr_Print();
1604             }
1605         }
1606
1607         // Call the event handler, passing the event object
1608         tuple = PyTuple_New(1);
1609         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1610         result = PyEval_CallObject(func, tuple);
1611         if ( result ) {
1612             Py_DECREF(result);   // result is ignored, but we still need to decref it
1613             PyErr_Clear();       // Just in case...
1614         } else {
1615             PyErr_Print();
1616         }
1617
1618         // Check if the event object needs some post cleanup
1619         if (PyObject_HasAttr(arg, s_postName)) {
1620             result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL);
1621             if ( result ) {
1622                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1623                 PyErr_Clear();       // Just in case...
1624             } else {
1625                 PyErr_Print();
1626             }
1627         }
1628
1629         if ( checkSkip ) {
1630             // if the event object was one of our special types and
1631             // it had been cloned, then we need to extract the Skipped
1632             // value from the original and set it in the clone.
1633             result = PyObject_CallMethod(arg, "GetSkipped", "");
1634             if ( result ) {
1635                 event.Skip(PyInt_AsLong(result));
1636                 Py_DECREF(result);
1637             } else {
1638                 PyErr_Print();
1639             }
1640         }
1641         Py_DECREF(tuple);
1642     }
1643     wxPyEndBlockThreads(blocked);
1644 }
1645
1646
1647 //----------------------------------------------------------------------
1648
1649 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1650       m_lastFound = NULL;
1651       m_self = other.m_self;
1652       m_class = other.m_class;
1653       if (m_self) {
1654           Py_INCREF(m_self);
1655           Py_INCREF(m_class);
1656       }
1657 }
1658
1659
1660 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1661     m_self = self;
1662     m_class = klass;
1663     m_incRef = incref;
1664     if (incref) {
1665         Py_INCREF(m_self);
1666         Py_INCREF(m_class);
1667     }
1668 }
1669
1670
1671 #if PYTHON_API_VERSION >= 1011
1672
1673 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1674 // in which the method was defined.  Starting with 2.2 it returns
1675 // "class that asked for the method" which seems totally bogus to me
1676 // but apprently it fixes some obscure problem waiting to happen in
1677 // Python.  Since the API was not documented Guido and the gang felt
1678 // safe in changing it.  Needless to say that totally screwed up the
1679 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1680 // code to find the class where the method is actually defined...
1681
1682 static
1683 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1684 {
1685     int i, n;
1686
1687     if (PyType_Check(klass)) {      // new style classes
1688         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1689         PyTypeObject* type = (PyTypeObject*)klass;
1690         PyObject *mro, *res, *base, *dict;
1691         /* Look in tp_dict of types in MRO */
1692         mro = type->tp_mro;
1693         assert(PyTuple_Check(mro));
1694         n = PyTuple_GET_SIZE(mro);
1695         for (i = 0; i < n; i++) {
1696             base = PyTuple_GET_ITEM(mro, i);
1697             if (PyClass_Check(base))
1698                 dict = ((PyClassObject *)base)->cl_dict;
1699             else {
1700                 assert(PyType_Check(base));
1701                 dict = ((PyTypeObject *)base)->tp_dict;
1702             }
1703             assert(dict && PyDict_Check(dict));
1704             res = PyDict_GetItem(dict, name);
1705             if (res != NULL)
1706                 return base;
1707         }
1708         return NULL;
1709     }
1710
1711     else if (PyClass_Check(klass)) { // old style classes
1712         // This code is borrowed/adapted from class_lookup in classobject.c
1713         PyClassObject* cp = (PyClassObject*)klass;
1714         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1715         if (value != NULL) {
1716             return (PyObject*)cp;
1717         }
1718         n = PyTuple_Size(cp->cl_bases);
1719         for (i = 0; i < n; i++) {
1720             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1721             PyObject *v = PyFindClassWithAttr(base, name);
1722             if (v != NULL)
1723                 return v;
1724         }
1725         return NULL;
1726     }
1727     return NULL;
1728 }
1729 #endif
1730
1731
1732 static
1733 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1734 {
1735     PyObject* mgc = PyMethod_GET_CLASS(method);
1736
1737 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1738     return mgc;
1739 #else                             // 2.2 and after, the hard way...
1740
1741     PyObject* nameo = PyString_FromString(name);
1742     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1743     Py_DECREF(nameo);
1744     return klass;
1745 #endif
1746 }
1747
1748
1749
1750 bool wxPyCallbackHelper::findCallback(const char* name) const {
1751     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1752     self->m_lastFound = NULL;
1753
1754     // If the object (m_self) has an attibute of the given name...
1755     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1756         PyObject *method, *klass;
1757         method = PyObject_GetAttrString(m_self, (char*)name);
1758
1759         // ...and if that attribute is a method, and if that method's class is
1760         // not from a base class...
1761         if (PyMethod_Check(method) &&
1762             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1763             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1764
1765             // ...then we'll save a pointer to the method so callCallback can call it.
1766             self->m_lastFound = method;
1767         }
1768         else {
1769             Py_DECREF(method);
1770         }
1771     }
1772     return m_lastFound != NULL;
1773 }
1774
1775
1776 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1777     PyObject*   result;
1778     int         retval = false;
1779
1780     result = callCallbackObj(argTuple);
1781     if (result) {                       // Assumes an integer return type...
1782         retval = PyInt_AsLong(result);
1783         Py_DECREF(result);
1784         PyErr_Clear();                  // forget about it if it's not...
1785     }
1786     return retval;
1787 }
1788
1789 // Invoke the Python callable object, returning the raw PyObject return
1790 // value.  Caller should DECREF the return value and also manage the GIL.
1791 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1792     PyObject* result;
1793
1794     // Save a copy of the pointer in case the callback generates another
1795     // callback.  In that case m_lastFound will have a different value when
1796     // it gets back here...
1797     PyObject* method = m_lastFound;
1798
1799     result = PyEval_CallObject(method, argTuple);
1800     Py_DECREF(argTuple);
1801     Py_DECREF(method);
1802     if (!result) {
1803         PyErr_Print();
1804     }
1805     return result;
1806 }
1807
1808
1809 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1810     cbh.setSelf(self, klass, incref);
1811 }
1812
1813 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1814     return cbh.findCallback(name);
1815 }
1816
1817 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1818     return cbh.callCallback(argTuple);
1819 }
1820
1821 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1822     return cbh.callCallbackObj(argTuple);
1823 }
1824
1825
1826 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1827     if (cbh->m_incRef) {
1828         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1829         Py_XDECREF(cbh->m_self);
1830         Py_XDECREF(cbh->m_class);
1831         wxPyEndBlockThreads(blocked);
1832     }
1833 }
1834
1835 //---------------------------------------------------------------------------
1836 //---------------------------------------------------------------------------
1837 // These event classes can be derived from in Python and passed through the event
1838 // system without losing anything.  They do this by keeping a reference to
1839 // themselves and some special case handling in wxPyCallback::EventThunker.
1840
1841
1842 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1843     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1844     //Py_INCREF(m_self);        //      circular loops...
1845     m_cloned = false;
1846 }
1847
1848 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1849     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1850     if (m_cloned)
1851         Py_DECREF(m_self);
1852     wxPyEndBlockThreads(blocked);
1853 }
1854
1855 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1856     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1857     if (m_cloned)
1858         Py_DECREF(m_self);
1859     m_self = self;
1860     if (clone) {
1861         Py_INCREF(m_self);
1862         m_cloned = true;
1863     }
1864     wxPyEndBlockThreads(blocked);
1865 }
1866
1867 PyObject* wxPyEvtSelfRef::GetSelf() const {
1868     Py_INCREF(m_self);
1869     return m_self;
1870 }
1871
1872
1873 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1874 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1875
1876
1877 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1878     : wxEvent(winid, commandType) {
1879 }
1880
1881
1882 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1883     : wxEvent(evt)
1884 {
1885     SetSelf(evt.m_self, true);
1886 }
1887
1888
1889 wxPyEvent::~wxPyEvent() {
1890 }
1891
1892
1893 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1894     : wxCommandEvent(commandType, id) {
1895 }
1896
1897
1898 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1899     : wxCommandEvent(evt)
1900 {
1901     SetSelf(evt.m_self, true);
1902 }
1903
1904
1905 wxPyCommandEvent::~wxPyCommandEvent() {
1906 }
1907
1908
1909
1910
1911
1912 //---------------------------------------------------------------------------
1913 //---------------------------------------------------------------------------
1914 // Convert a wxList to a Python List, only works for lists of wxObjects
1915
1916 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1917     wxList*     list = (wxList*)listbase;  // this is probably bad...
1918     PyObject*   pyList;
1919     PyObject*   pyObj;
1920     wxObject*   wxObj;
1921     wxNode*     node = list->GetFirst();
1922
1923     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1924     pyList = PyList_New(0);
1925     while (node) {
1926         wxObj = node->GetData();
1927         pyObj = wxPyMake_wxObject(wxObj,false);
1928         PyList_Append(pyList, pyObj);
1929         node = node->GetNext();
1930     }
1931     wxPyEndBlockThreads(blocked);
1932     return pyList;
1933 }
1934
1935 //----------------------------------------------------------------------
1936
1937 long wxPyGetWinHandle(wxWindow* win) {
1938
1939 #ifdef __WXMSW__
1940     return (long)win->GetHandle();
1941 #endif
1942
1943 #if defined(__WXGTK__) || defined(__WXX11)
1944     return (long)GetXWindow(win);
1945 #endif
1946
1947 #ifdef __WXMAC__
1948     //return (long)MAC_WXHWND(win->MacGetTopLevelWindowRef());
1949     return (long)win->GetHandle();
1950 #endif
1951
1952     return 0;
1953 }
1954
1955 //----------------------------------------------------------------------
1956 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1957 // included in every file over and over again...
1958
1959 wxString* wxString_in_helper(PyObject* source) {
1960     wxString* target = NULL;
1961
1962     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1963         PyErr_SetString(PyExc_TypeError, "String or Unicode type required");
1964         return NULL;
1965     }
1966 #if wxUSE_UNICODE
1967     PyObject* uni = source;
1968     if (PyString_Check(source)) {
1969         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
1970         if (PyErr_Occurred()) return NULL;
1971     }
1972     target = new wxString();
1973     size_t len = PyUnicode_GET_SIZE(uni);
1974     if (len) {
1975         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target->GetWriteBuf(len), len);
1976         target->UngetWriteBuf(len);
1977     }
1978
1979     if (PyString_Check(source))
1980         Py_DECREF(uni);
1981 #else
1982     // Convert to a string object if it isn't already, then to wxString
1983     PyObject* str = source;
1984     if (PyUnicode_Check(source)) {
1985         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
1986         if (PyErr_Occurred()) return NULL;
1987     }
1988     else if (!PyString_Check(source)) {
1989         str = PyObject_Str(source);
1990         if (PyErr_Occurred()) return NULL;
1991     }
1992     char* tmpPtr; int tmpSize;
1993     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1994     target = new wxString(tmpPtr, tmpSize);
1995
1996     if (!PyString_Check(source))
1997         Py_DECREF(str);
1998 #endif // wxUSE_UNICODE
1999
2000     return target;
2001 }
2002
2003
2004 // Similar to above except doesn't use "new" and doesn't set an exception
2005 wxString Py2wxString(PyObject* source)
2006 {
2007     wxString target;
2008
2009 #if wxUSE_UNICODE
2010     // Convert to a unicode object, if not already, then to a wxString
2011     PyObject* uni = source;
2012     if (!PyUnicode_Check(source)) {
2013         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
2014         if (PyErr_Occurred()) return wxEmptyString;  // TODO:  should we PyErr_Clear?
2015     }
2016     size_t len = PyUnicode_GET_SIZE(uni);
2017     if (len) {
2018         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target.GetWriteBuf(len), len);
2019         target.UngetWriteBuf();
2020     }
2021
2022     if (!PyUnicode_Check(source))
2023         Py_DECREF(uni);
2024 #else
2025     // Convert to a string object if it isn't already, then to wxString
2026     PyObject* str = source;
2027     if (PyUnicode_Check(source)) {
2028         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
2029         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
2030     }
2031     else if (!PyString_Check(source)) {
2032         str = PyObject_Str(source);
2033         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
2034     }
2035     char* tmpPtr; int tmpSize;
2036     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
2037     target = wxString(tmpPtr, tmpSize);
2038
2039     if (!PyString_Check(source))
2040         Py_DECREF(str);
2041 #endif // wxUSE_UNICODE
2042
2043     return target;
2044 }
2045
2046
2047 // Make either a Python String or Unicode object, depending on build mode
2048 PyObject* wx2PyString(const wxString& src)
2049 {
2050     PyObject* str;
2051 #if wxUSE_UNICODE
2052     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
2053 #else
2054     str = PyString_FromStringAndSize(src.c_str(), src.Len());
2055 #endif
2056     return str;
2057 }
2058
2059
2060
2061 void wxSetDefaultPyEncoding(const char* encoding)
2062 {
2063     strncpy(wxPyDefaultEncoding, encoding, DEFAULTENCODING_SIZE);
2064 }
2065
2066 const char* wxGetDefaultPyEncoding()
2067 {
2068     return wxPyDefaultEncoding;
2069 }
2070
2071 //----------------------------------------------------------------------
2072
2073
2074 byte* byte_LIST_helper(PyObject* source) {
2075     if (!PyList_Check(source)) {
2076         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2077         return NULL;
2078     }
2079     int count = PyList_Size(source);
2080     byte* temp = new byte[count];
2081     if (! temp) {
2082         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2083         return NULL;
2084     }
2085     for (int x=0; x<count; x++) {
2086         PyObject* o = PyList_GetItem(source, x);
2087         if (! PyInt_Check(o)) {
2088             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2089             return NULL;
2090         }
2091         temp[x] = (byte)PyInt_AsLong(o);
2092     }
2093     return temp;
2094 }
2095
2096
2097 int* int_LIST_helper(PyObject* source) {
2098     if (!PyList_Check(source)) {
2099         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2100         return NULL;
2101     }
2102     int count = PyList_Size(source);
2103     int* temp = new int[count];
2104     if (! temp) {
2105         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2106         return NULL;
2107     }
2108     for (int x=0; x<count; x++) {
2109         PyObject* o = PyList_GetItem(source, x);
2110         if (! PyInt_Check(o)) {
2111             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2112             return NULL;
2113         }
2114         temp[x] = PyInt_AsLong(o);
2115     }
2116     return temp;
2117 }
2118
2119
2120 long* long_LIST_helper(PyObject* source) {
2121     if (!PyList_Check(source)) {
2122         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2123         return NULL;
2124     }
2125     int count = PyList_Size(source);
2126     long* temp = new long[count];
2127     if (! temp) {
2128         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2129         return NULL;
2130     }
2131     for (int x=0; x<count; x++) {
2132         PyObject* o = PyList_GetItem(source, x);
2133         if (! PyInt_Check(o)) {
2134             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2135             return NULL;
2136         }
2137         temp[x] = PyInt_AsLong(o);
2138     }
2139     return temp;
2140 }
2141
2142
2143 char** string_LIST_helper(PyObject* source) {
2144     if (!PyList_Check(source)) {
2145         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2146         return NULL;
2147     }
2148     int count = PyList_Size(source);
2149     char** temp = new char*[count];
2150     if (! temp) {
2151         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2152         return NULL;
2153     }
2154     for (int x=0; x<count; x++) {
2155         PyObject* o = PyList_GetItem(source, x);
2156         if (! PyString_Check(o)) {
2157             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2158             return NULL;
2159         }
2160         temp[x] = PyString_AsString(o);
2161     }
2162     return temp;
2163 }
2164
2165 //--------------------------------
2166 // Part of patch from Tim Hochberg
2167 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
2168     if (PyInt_Check(o1) && PyInt_Check(o2)) {
2169         point->x = PyInt_AS_LONG(o1);
2170         point->y = PyInt_AS_LONG(o2);
2171         return true;
2172     }
2173     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
2174         point->x = (int)PyFloat_AS_DOUBLE(o1);
2175         point->y = (int)PyFloat_AS_DOUBLE(o2);
2176         return true;
2177     }
2178     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
2179         // Disallow instances because they can cause havok
2180         return false;
2181     }
2182     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
2183         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
2184         point->x = PyInt_AsLong(o1);
2185         point->y = PyInt_AsLong(o2);
2186         return true;
2187     }
2188     return false;
2189 }
2190
2191
2192 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
2193     // Putting all of the declarations here allows
2194     // us to put the error handling all in one place.
2195     int x;
2196     wxPoint* temp;
2197     PyObject *o, *o1, *o2;
2198     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2199
2200     if (!PySequence_Check(source)) {
2201         goto error0;
2202     }
2203
2204     // The length of the sequence is returned in count.
2205     *count = PySequence_Length(source);
2206     if (*count < 0) {
2207         goto error0;
2208     }
2209
2210     temp = new wxPoint[*count];
2211     if (!temp) {
2212         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2213         return NULL;
2214     }
2215     for (x=0; x<*count; x++) {
2216         // Get an item: try fast way first.
2217         if (isFast) {
2218             o = PySequence_Fast_GET_ITEM(source, x);
2219         }
2220         else {
2221             o = PySequence_GetItem(source, x);
2222             if (o == NULL) {
2223                 goto error1;
2224             }
2225         }
2226
2227         // Convert o to wxPoint.
2228         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
2229             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
2230             o1 = PySequence_Fast_GET_ITEM(o, 0);
2231             o2 = PySequence_Fast_GET_ITEM(o, 1);
2232             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2233                 goto error2;
2234             }
2235         }
2236         else if (wxPySwigInstance_Check(o)) {
2237             wxPoint* pt;
2238             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
2239                 goto error2;
2240             }
2241             temp[x] = *pt;
2242         }
2243         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
2244             o1 = PySequence_GetItem(o, 0);
2245             o2 = PySequence_GetItem(o, 1);
2246             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2247                 goto error3;
2248             }
2249             Py_DECREF(o1);
2250             Py_DECREF(o2);
2251         }
2252         else {
2253             goto error2;
2254         }
2255         // Clean up.
2256         if (!isFast)
2257             Py_DECREF(o);
2258     }
2259     return temp;
2260
2261 error3:
2262     Py_DECREF(o1);
2263     Py_DECREF(o2);
2264 error2:
2265     if (!isFast)
2266         Py_DECREF(o);
2267 error1:
2268     delete [] temp;
2269 error0:
2270     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2271     return NULL;
2272 }
2273 // end of patch
2274 //------------------------------
2275
2276
2277 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2278     if (!PyList_Check(source)) {
2279         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2280         return NULL;
2281     }
2282     int count = PyList_Size(source);
2283     wxBitmap** temp = new wxBitmap*[count];
2284     if (! temp) {
2285         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2286         return NULL;
2287     }
2288     for (int x=0; x<count; x++) {
2289         PyObject* o = PyList_GetItem(source, x);
2290         if (wxPySwigInstance_Check(o)) {
2291             wxBitmap*    pt;
2292             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2293                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2294                 return NULL;
2295             }
2296             temp[x] = pt;
2297         }
2298         else {
2299             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2300             return NULL;
2301         }
2302     }
2303     return temp;
2304 }
2305
2306
2307
2308 wxString* wxString_LIST_helper(PyObject* source) {
2309     if (!PyList_Check(source)) {
2310         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2311         return NULL;
2312     }
2313     int count = PyList_Size(source);
2314     wxString* temp = new wxString[count];
2315     if (! temp) {
2316         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2317         return NULL;
2318     }
2319     for (int x=0; x<count; x++) {
2320         PyObject* o = PyList_GetItem(source, x);
2321 #if PYTHON_API_VERSION >= 1009
2322         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2323             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2324             return NULL;
2325         }
2326 #else
2327         if (! PyString_Check(o)) {
2328             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2329             return NULL;
2330         }
2331 #endif
2332
2333         wxString* pStr = wxString_in_helper(o);
2334         temp[x] = *pStr;
2335         delete pStr;
2336     }
2337     return temp;
2338 }
2339
2340
2341 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2342     if (!PyList_Check(source)) {
2343         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2344         return NULL;
2345     }
2346     int count                = PyList_Size(source);
2347     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2348     if (! temp) {
2349         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2350         return NULL;
2351     }
2352     for (int x=0; x<count; x++) {
2353         PyObject* o = PyList_GetItem(source, x);
2354         if (wxPySwigInstance_Check(o)) {
2355             wxAcceleratorEntry* ae;
2356             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2357                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2358                 return NULL;
2359             }
2360             temp[x] = *ae;
2361         }
2362         else if (PyTuple_Check(o)) {
2363             PyObject* o1 = PyTuple_GetItem(o, 0);
2364             PyObject* o2 = PyTuple_GetItem(o, 1);
2365             PyObject* o3 = PyTuple_GetItem(o, 2);
2366             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2367         }
2368         else {
2369             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2370             return NULL;
2371         }
2372     }
2373     return temp;
2374 }
2375
2376
2377 wxPen** wxPen_LIST_helper(PyObject* source) {
2378     if (!PyList_Check(source)) {
2379         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2380         return NULL;
2381     }
2382     int count = PyList_Size(source);
2383     wxPen** temp = new wxPen*[count];
2384     if (!temp) {
2385         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2386         return NULL;
2387     }
2388     for (int x=0; x<count; x++) {
2389         PyObject* o = PyList_GetItem(source, x);
2390         if (wxPySwigInstance_Check(o)) {
2391             wxPen*  pt;
2392             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2393                 delete temp;
2394                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2395                 return NULL;
2396             }
2397             temp[x] = pt;
2398         }
2399         else {
2400             delete temp;
2401             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2402             return NULL;
2403         }
2404     }
2405     return temp;
2406 }
2407
2408
2409 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2410     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2411     PyObject *o1, *o2;
2412
2413     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2414         return false;
2415
2416     if (isFast) {
2417         o1 = PySequence_Fast_GET_ITEM(source, 0);
2418         o2 = PySequence_Fast_GET_ITEM(source, 1);
2419     }
2420     else {
2421         o1 = PySequence_GetItem(source, 0);
2422         o2 = PySequence_GetItem(source, 1);
2423     }
2424
2425     *i1 = PyInt_AsLong(o1);
2426     *i2 = PyInt_AsLong(o2);
2427
2428     if (! isFast) {
2429         Py_DECREF(o1);
2430         Py_DECREF(o2);
2431     }
2432     return true;
2433 }
2434
2435
2436 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2437     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2438     PyObject *o1, *o2, *o3, *o4;
2439
2440     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2441         return false;
2442
2443     if (isFast) {
2444         o1 = PySequence_Fast_GET_ITEM(source, 0);
2445         o2 = PySequence_Fast_GET_ITEM(source, 1);
2446         o3 = PySequence_Fast_GET_ITEM(source, 2);
2447         o4 = PySequence_Fast_GET_ITEM(source, 3);
2448     }
2449     else {
2450         o1 = PySequence_GetItem(source, 0);
2451         o2 = PySequence_GetItem(source, 1);
2452         o3 = PySequence_GetItem(source, 2);
2453         o4 = PySequence_GetItem(source, 3);
2454     }
2455
2456     *i1 = PyInt_AsLong(o1);
2457     *i2 = PyInt_AsLong(o2);
2458     *i3 = PyInt_AsLong(o3);
2459     *i4 = PyInt_AsLong(o4);
2460
2461     if (! isFast) {
2462         Py_DECREF(o1);
2463         Py_DECREF(o2);
2464         Py_DECREF(o3);
2465         Py_DECREF(o4);
2466     }
2467     return true;
2468 }
2469
2470
2471 //----------------------------------------------------------------------
2472
2473 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2474 {
2475     void* ptr;
2476
2477     if (wxPySwigInstance_Check(source) &&
2478         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2479         return true;
2480
2481     PyErr_Clear();
2482     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2483         return true;
2484
2485     return false;
2486 }
2487
2488 bool wxSize_helper(PyObject* source, wxSize** obj)
2489 {
2490     if (source == Py_None) {
2491         **obj = wxSize(-1,-1);
2492         return true;
2493     }
2494     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2495 }
2496
2497
2498 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2499 {
2500     if (source == Py_None) {
2501         **obj = wxPoint(-1,-1);
2502         return true;
2503     }
2504     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2505 }
2506
2507
2508
2509 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2510
2511     if (source == Py_None) {
2512         **obj = wxRealPoint(-1,-1);
2513         return true;
2514     }
2515
2516     // If source is an object instance then it may already be the right type
2517     if (wxPySwigInstance_Check(source)) {
2518         wxRealPoint* ptr;
2519         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2520             goto error;
2521         *obj = ptr;
2522         return true;
2523     }
2524     // otherwise a 2-tuple of floats is expected
2525     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2526         PyObject* o1 = PySequence_GetItem(source, 0);
2527         PyObject* o2 = PySequence_GetItem(source, 1);
2528         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2529             Py_DECREF(o1);
2530             Py_DECREF(o2);
2531             goto error;
2532         }
2533         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2534         Py_DECREF(o1);
2535         Py_DECREF(o2);
2536         return true;
2537     }
2538
2539  error:
2540     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2541     return false;
2542 }
2543
2544
2545
2546 bool wxRect_helper(PyObject* source, wxRect** obj) {
2547
2548     if (source == Py_None) {
2549         **obj = wxRect(-1,-1,-1,-1);
2550         return true;
2551     }
2552
2553     // If source is an object instance then it may already be the right type
2554     if (wxPySwigInstance_Check(source)) {
2555         wxRect* ptr;
2556         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2557             goto error;
2558         *obj = ptr;
2559         return true;
2560     }
2561     // otherwise a 4-tuple of integers is expected
2562     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2563         PyObject* o1 = PySequence_GetItem(source, 0);
2564         PyObject* o2 = PySequence_GetItem(source, 1);
2565         PyObject* o3 = PySequence_GetItem(source, 2);
2566         PyObject* o4 = PySequence_GetItem(source, 3);
2567         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2568             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2569             Py_DECREF(o1);
2570             Py_DECREF(o2);
2571             Py_DECREF(o3);
2572             Py_DECREF(o4);
2573             goto error;
2574         }
2575         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2576                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2577         Py_DECREF(o1);
2578         Py_DECREF(o2);
2579         Py_DECREF(o3);
2580         Py_DECREF(o4);
2581         return true;
2582     }
2583
2584  error:
2585     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2586     return false;
2587 }
2588
2589
2590
2591 bool wxColour_helper(PyObject* source, wxColour** obj) {
2592
2593     if (source == Py_None) {
2594         **obj = wxNullColour;
2595         return true;
2596     }
2597
2598     // If source is an object instance then it may already be the right type
2599     if (wxPySwigInstance_Check(source)) {
2600         wxColour* ptr;
2601         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2602             goto error;
2603         *obj = ptr;
2604         return true;
2605     }
2606     // otherwise check for a string
2607     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2608         wxString spec = Py2wxString(source);
2609         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2610             long red, green, blue;
2611             red = green = blue = 0;
2612             spec.Mid(1,2).ToLong(&red,   16);
2613             spec.Mid(3,2).ToLong(&green, 16);
2614             spec.Mid(5,2).ToLong(&blue,  16);
2615
2616             **obj = wxColour(red, green, blue);
2617             return true;
2618         }
2619         else {                                       // it's a colour name
2620             **obj = wxColour(spec);
2621             return true;
2622         }
2623     }
2624     // last chance: 3-tuple of integers is expected
2625     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2626         PyObject* o1 = PySequence_GetItem(source, 0);
2627         PyObject* o2 = PySequence_GetItem(source, 1);
2628         PyObject* o3 = PySequence_GetItem(source, 2);
2629         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2630             Py_DECREF(o1);
2631             Py_DECREF(o2);
2632             Py_DECREF(o3);
2633             goto error;
2634         }
2635         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2636         Py_DECREF(o1);
2637         Py_DECREF(o2);
2638         Py_DECREF(o3);
2639         return true;
2640     }
2641
2642  error:
2643     PyErr_SetString(PyExc_TypeError,
2644                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2645     return false;
2646 }
2647
2648
2649 bool wxColour_typecheck(PyObject* source) {
2650
2651     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2652         return true;
2653
2654     if (PyString_Check(source) || PyUnicode_Check(source))
2655         return true;
2656
2657     return false;
2658 }
2659
2660
2661
2662 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2663
2664     if (source == Py_None) {
2665         **obj = wxPoint2D(-1,-1);
2666         return true;
2667     }
2668
2669     // If source is an object instance then it may already be the right type
2670     if (wxPySwigInstance_Check(source)) {
2671         wxPoint2D* ptr;
2672         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2673             goto error;
2674         *obj = ptr;
2675         return true;
2676     }
2677     // otherwise a length-2 sequence of floats is expected
2678     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2679         PyObject* o1 = PySequence_GetItem(source, 0);
2680         PyObject* o2 = PySequence_GetItem(source, 1);
2681         // This should really check for floats, not numbers -- but that would break code.
2682         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2683             Py_DECREF(o1);
2684             Py_DECREF(o2);
2685             goto error;
2686         }
2687         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2688         Py_DECREF(o1);
2689         Py_DECREF(o2);
2690         return true;
2691     }
2692  error:
2693     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2694     return false;
2695 }
2696
2697
2698 //----------------------------------------------------------------------
2699
2700 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2701
2702     PyObject* list = PyList_New(0);
2703     for (size_t i=0; i < arr.GetCount(); i++) {
2704 #if wxUSE_UNICODE
2705         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2706 #else
2707         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2708 #endif
2709         PyList_Append(list, str);
2710         Py_DECREF(str);
2711     }
2712     return list;
2713 }
2714
2715
2716 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2717
2718     PyObject* list = PyList_New(0);
2719     for (size_t i=0; i < arr.GetCount(); i++) {
2720         PyObject* number = PyInt_FromLong(arr[i]);
2721         PyList_Append(list, number);
2722         Py_DECREF(number);
2723     }
2724     return list;
2725 }
2726
2727
2728 //----------------------------------------------------------------------
2729 //----------------------------------------------------------------------
2730
2731
2732
2733