wxPython/src/helpers.cpp

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