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:     7/1/97
   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 "helpers.h"
  17 #include "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 <gtk/gtk.h>
  27 #include <gdk/gdkprivate.h>
  28 #include <wx/gtk/win_gtk.h>
  29 #endif
  30
  31 #include <wx/clipbrd.h>
  32 #include <wx/mimetype.h>
  33 #include <wx/image.h>
  34
  35 //----------------------------------------------------------------------
  36
  37 #if PYTHON_API_VERSION <= 1007 && wxUSE_UNICODE
  38 #error Python must support Unicode to use wxWindows Unicode
  39 #endif
  40
  41 //----------------------------------------------------------------------
  42
  43 wxPyApp* wxPythonApp = NULL;  // Global instance of application object
  44 bool wxPyDoCleanup = FALSE;
  45 bool wxPyDoingCleanup = FALSE;
  46
  47
  48 #ifdef WXP_WITH_THREAD
  49 struct wxPyThreadState {
  50     unsigned long  tid;
  51     PyThreadState* tstate;
  52
  53     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  54         : tid(_tid), tstate(_tstate) {}
  55 };
  56
  57 #include <wx/dynarray.h>
  58 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  59 #include <wx/arrimpl.cpp>
  60 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  61
  62 wxPyThreadStateArray* wxPyTStates = NULL;
  63 wxMutex*              wxPyTMutex = NULL;
  64 #endif
  65
  66
  67 static PyObject* wxPython_dict = NULL;
  68 static PyObject* wxPyPtrTypeMap = NULL;
  69 static PyObject* wxPyAssertionError = NULL;
  70
  71
  72 #ifdef __WXMSW__             // If building for win32...
  73 //----------------------------------------------------------------------
  74 // This gets run when the DLL is loaded.  We just need to save a handle.
  75 //----------------------------------------------------------------------
  76
  77 BOOL WINAPI DllMain(
  78     HINSTANCE   hinstDLL,    // handle to DLL module
  79     DWORD       fdwReason,   // reason for calling function
  80     LPVOID      lpvReserved  // reserved
  81    )
  82 {
  83     // If wxPython is embedded in another wxWindows app then
  84     // the inatance has already been set.
  85     if (! wxGetInstance())
  86         wxSetInstance(hinstDLL);
  87     return TRUE;
  88 }
  89 #endif
  90
  91 //----------------------------------------------------------------------
  92 // Classes for implementing the wxp main application shell.
  93 //----------------------------------------------------------------------
  94
  95 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
  96
  97
  98 wxPyApp::wxPyApp() {
  99     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 100 }
 101
 102
 103 wxPyApp::~wxPyApp() {
 104 }
 105
 106
 107 // This one isn't acutally called...  We fake it with __wxStart()
 108 bool wxPyApp::OnInit() {
 109     return FALSE;
 110 }
 111
 112
 113 int  wxPyApp::MainLoop() {
 114     int retval = 0;
 115
 116     DeletePendingObjects();
 117     bool initialized = wxTopLevelWindows.GetCount() != 0;
 118 #ifdef __WXGTK__
 119     m_initialized = initialized;
 120 #endif
 121
 122     if (initialized) {
 123         if ( m_exitOnFrameDelete == Later ) {
 124             m_exitOnFrameDelete = Yes;
 125         }
 126
 127         retval = wxApp::MainLoop();
 128         OnExit();
 129     }
 130     return retval;
 131 }
 132
 133
 134 bool wxPyApp::OnInitGui() {
 135     bool rval=TRUE;
 136     wxApp::OnInitGui();  // in this case always call the base class version
 137     // wxPyBeginBlockThreads();  *** only called from within __wxStart so we already have the GIL
 138     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 139         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 140     // wxPyEndBlockThreads();    ***
 141     return rval;
 142 }
 143
 144
 145 int wxPyApp::OnExit() {
 146     int rval=0;
 147     wxPyBeginBlockThreads();
 148     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 149         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 150     wxPyEndBlockThreads();
 151     wxApp::OnExit();  // in this case always call the base class version
 152     return rval;
 153 }
 154
 155
 156 #ifdef __WXDEBUG__
 157 void wxPyApp::OnAssert(const wxChar *file,
 158                      int line,
 159                      const wxChar *cond,
 160                      const wxChar *msg) {
 161
 162     // If the OnAssert is overloaded in the Python class then call it...
 163     bool found;
 164     wxPyBeginBlockThreads();
 165     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 166         PyObject* fso = wx2PyString(file);
 167         PyObject* cso = wx2PyString(file);
 168         PyObject* mso;
 169         if (msg != NULL)
 170             mso = wx2PyString(file);
 171         else {
 172             mso = Py_None; Py_INCREF(Py_None);
 173         }
 174         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 175         Py_DECREF(fso);
 176         Py_DECREF(cso);
 177         Py_DECREF(mso);
 178     }
 179     wxPyEndBlockThreads();
 180
 181     // ...otherwise do our own thing with it
 182     if (! found) {
 183         // ignore it?
 184         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 185             return;
 186
 187         // turn it into a Python exception?
 188         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 189             wxString buf;
 190             buf.Alloc(4096);
 191             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 192             if (msg != NULL) {
 193                 buf += wxT(": ");
 194                 buf += msg;
 195             }
 196
 197             // set the exception
 198             wxPyBeginBlockThreads();
 199             PyObject* s = wx2PyString(buf);
 200             PyErr_SetObject(wxPyAssertionError, s);
 201             Py_DECREF(s);
 202             wxPyEndBlockThreads();
 203
 204             // Now when control returns to whatever API wrapper was called from
 205             // Python it should detect that an exception is set and will return
 206             // NULL, signalling the exception to Python.
 207         }
 208
 209         // Send it to the normal log destination, but only if
 210         // not _DIALOG because it will call this too
 211         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 212             wxString buf;
 213             buf.Alloc(4096);
 214             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 215                        file, line, cond);
 216             if (msg != NULL) {
 217                 buf += wxT(": ");
 218                 buf += msg;
 219             }
 220             wxLogDebug(buf);
 221         }
 222
 223         // do the normal wx assert dialog?
 224         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 225             wxApp::OnAssert(file, line, cond, msg);
 226     }
 227 }
 228 #endif
 229
 230
 231 /*static*/
 232 bool wxPyApp::GetMacDefaultEncodingIsPC() {
 233 #ifdef __WXMAC__
 234     return s_macDefaultEncodingIsPC;
 235 #else
 236     return 0;
 237 #endif
 238 }
 239
 240 /*static*/
 241 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 242 #ifdef __WXMAC__
 243     return s_macSupportPCMenuShortcuts;
 244 #else
 245     return 0;
 246 #endif
 247 }
 248
 249 /*static*/
 250 long wxPyApp::GetMacAboutMenuItemId() {
 251 #ifdef __WXMAC__
 252     return s_macAboutMenuItemId;
 253 #else
 254     return 0;
 255 #endif
 256 }
 257
 258 /*static*/
 259 long wxPyApp::GetMacPreferencesMenuItemId() {
 260 #ifdef __WXMAC__
 261     return s_macPreferencesMenuItemId;
 262 #else
 263     return 0;
 264 #endif
 265 }
 266
 267 /*static*/
 268 long wxPyApp::GetMacExitMenuItemId() {
 269 #ifdef __WXMAC__
 270     return s_macExitMenuItemId;
 271 #else
 272     return 0;
 273 #endif
 274 }
 275
 276 /*static*/
 277 wxString wxPyApp::GetMacHelpMenuTitleName() {
 278 #ifdef __WXMAC__
 279     return s_macHelpMenuTitleName;
 280 #else
 281     return wxEmptyString;
 282 #endif
 283 }
 284
 285 /*static*/
 286 void wxPyApp::SetMacDefaultEncodingIsPC(bool val) {
 287 #ifdef __WXMAC__
 288     s_macDefaultEncodingIsPC = val;
 289 #endif
 290 }
 291
 292 /*static*/
 293 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 294 #ifdef __WXMAC__
 295     s_macSupportPCMenuShortcuts = val;
 296 #endif
 297 }
 298
 299 /*static*/
 300 void wxPyApp::SetMacAboutMenuItemId(long val) {
 301 #ifdef __WXMAC__
 302     s_macAboutMenuItemId = val;
 303 #endif
 304 }
 305
 306 /*static*/
 307 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 308 #ifdef __WXMAC__
 309     s_macPreferencesMenuItemId = val;
 310 #endif
 311 }
 312
 313 /*static*/
 314 void wxPyApp::SetMacExitMenuItemId(long val) {
 315 #ifdef __WXMAC__
 316     s_macExitMenuItemId = val;
 317 #endif
 318 }
 319
 320 /*static*/
 321 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 322 #ifdef __WXMAC__
 323     s_macHelpMenuTitleName = val;
 324 #endif
 325 }
 326
 327
 328
 329 //---------------------------------------------------------------------
 330 //----------------------------------------------------------------------
 331
 332
 333 #if 0
 334 static char* wxPyCopyCString(const wxChar* src)
 335 {
 336     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 337     size_t len = strlen(buff);
 338     char*  dest = new char[len+1];
 339     strcpy(dest, buff);
 340     return dest;
 341 }
 342
 343 #if wxUSE_UNICODE
 344 static char* wxPyCopyCString(const char* src)   // we need a char version too
 345 {
 346     size_t len = strlen(src);
 347     char*  dest = new char[len+1];
 348     strcpy(dest, src);
 349     return dest;
 350 }
 351 #endif
 352
 353 static wxChar* wxPyCopyWString(const char *src)
 354 {
 355     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 356     wxString str(src, *wxConvCurrent);
 357     return copystring(str);
 358 }
 359
 360 #if wxUSE_UNICODE
 361 static wxChar* wxPyCopyWString(const wxChar *src)
 362 {
 363     return copystring(src);
 364 }
 365 #endif
 366 #endif
 367
 368
 369 //----------------------------------------------------------------------
 370
 371 // This function is called when the wxc module is imported to do some initial
 372 // setup.  (Before there is a wxApp object.)
 373 void __wxPreStart(PyObject* moduleDict)
 374 {
 375
 376 #ifdef __WXMSW__
 377 //    wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 378 #endif
 379
 380 #ifdef WXP_WITH_THREAD
 381     PyEval_InitThreads();
 382     wxPyTStates = new wxPyThreadStateArray;
 383     wxPyTMutex = new wxMutex;
 384 #endif
 385
 386     // Ensure that the build options in the DLL (or whatever) match this build
 387     wxApp::CheckBuildOptions(wxBuildOptions());
 388
 389     // Create an exception object to use for wxASSERTions
 390     wxPyAssertionError = PyErr_NewException("wxPython.wxc.wxPyAssertionError",
 391                                             PyExc_AssertionError, NULL);
 392     PyDict_SetItemString(moduleDict, "wxPyAssertionError", wxPyAssertionError);
 393 }
 394
 395
 396
 397 // Initialize wxWindows and bootstrap the user application by calling the
 398 // wxApp's OnInit, which is a parameter to this funciton.  See wxApp.__init__
 399 // in _extras.py to learn how the bootstrap is started.
 400 PyObject* __wxStart(PyObject* /* self */, PyObject* args)
 401 {
 402     PyObject*   onInitFunc = NULL;
 403     PyObject*   arglist= NULL;
 404     PyObject*   result = NULL;
 405     PyObject*   pyint = NULL;
 406     long        bResult;
 407
 408     if (!PyArg_ParseTuple(args, "O", &onInitFunc))
 409         return NULL;
 410
 411     // Get any command-line args passed to this program from the sys module
 412     int argc = 0;
 413     char** argv = NULL;
 414     PyObject* sysargv = PySys_GetObject("argv");
 415     if (sysargv != NULL) {
 416         argc = PyList_Size(sysargv);
 417         argv = new char*[argc+1];
 418         int x;
 419         for(x=0; x<argc; x++) {
 420             PyObject *pyArg = PyList_GetItem(sysargv, x);
 421             argv[x] = PyString_AsString(pyArg);
 422         }
 423         argv[argc] = NULL;
 424     }
 425
 426     if (! wxEntryStart(argc, argv) ) {
 427         PyErr_SetString(PyExc_SystemError,      // is this the right one?
 428                         "wxEntryStart failed!");
 429         goto error;
 430     }
 431     delete [] argv;
 432
 433
 434     // The stock objects were all NULL when they were loaded into
 435     // SWIG generated proxies, so re-init those now...
 436     wxPy_ReinitStockObjects();
 437
 438
 439     // Call the Python wxApp's OnInit function
 440     arglist = PyTuple_New(0);
 441     result = PyEval_CallObject(onInitFunc, arglist);
 442     Py_DECREF(arglist);
 443     if (!result) {      // an exception was raised.
 444         return NULL;
 445     }
 446
 447     pyint = PyNumber_Int(result);
 448     if (! pyint) {
 449         PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 450         goto error;
 451     }
 452     bResult = PyInt_AS_LONG(pyint);
 453     if (! bResult) {
 454         PyErr_SetString(PyExc_SystemExit, "OnInit returned FALSE, exiting...");
 455         goto error;
 456     }
 457
 458 #ifdef __WXGTK__
 459     wxTheApp->m_initialized = (wxTopLevelWindows.GetCount() > 0);
 460 #endif
 461
 462     Py_DECREF(result);
 463     Py_DECREF(pyint);
 464     Py_INCREF(Py_None);
 465     return Py_None;
 466
 467  error:
 468     Py_XDECREF(result);
 469     Py_XDECREF(pyint);
 470     return NULL;
 471 }
 472
 473
 474
 475 void __wxCleanup() {
 476     wxPyDoingCleanup = TRUE;
 477     if (wxPyDoCleanup)
 478         wxEntryCleanup();
 479 #ifdef WXP_WITH_THREAD
 480     delete wxPyTMutex;
 481     wxPyTMutex = NULL;
 482     wxPyTStates->Empty();
 483     delete wxPyTStates;
 484     wxPyTStates = NULL;
 485 #endif
 486 }
 487
 488
 489
 490
 491 PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 492 {
 493
 494     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 495         return NULL;
 496
 497     if (!PyDict_Check(wxPython_dict)) {
 498         PyErr_SetString(PyExc_TypeError, "_wxSetDictionary must have dictionary object!");
 499         return NULL;
 500     }
 501
 502     if (! wxPyPtrTypeMap)
 503         wxPyPtrTypeMap = PyDict_New();
 504     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 505
 506
 507 #ifdef __WXMOTIF__
 508 #define wxPlatform "__WXMOTIF__"
 509 #endif
 510 #ifdef __WXX11__
 511 #define wxPlatform "__WXX11__"
 512 #endif
 513 #ifdef __WXGTK__
 514 #define wxPlatform "__WXGTK__"
 515 #endif
 516 #if defined(__WIN32__) || defined(__WXMSW__)
 517 #define wxPlatform "__WXMSW__"
 518 #endif
 519 #ifdef __WXMAC__
 520 #define wxPlatform "__WXMAC__"
 521 #endif
 522
 523 #ifdef __WXDEBUG__
 524     int wxdebug = 1;
 525 #else
 526     int wxdebug = 0;
 527 #endif
 528
 529     PyDict_SetItemString(wxPython_dict, "wxPlatform", PyString_FromString(wxPlatform));
 530     PyDict_SetItemString(wxPython_dict, "wxUSE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 531     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 532
 533     Py_INCREF(Py_None);
 534     return Py_None;
 535 }
 536
 537
 538 //---------------------------------------------------------------------------
 539
 540 // The stock objects are no longer created when the wxc module is imported, but
 541 // only after the app object has been created.  This function will be called before
 542 // OnInit is called so we can hack the new pointer values into the obj.this attributes.
 543
 544 void wxPy_ReinitStockObjects()
 545 {
 546     char ptrbuf[128];
 547     PyObject* obj;
 548     PyObject* ptrobj;
 549
 550
 551
 552 #define REINITOBJ(name, type) \
 553     obj = PyDict_GetItemString(wxPython_dict, #name); \
 554     wxASSERT_MSG(obj != NULL, wxT("Unable to find stock object for " #name)); \
 555     SWIG_MakePtr(ptrbuf, (char *) name, "_" #type "_p"); \
 556     ptrobj = PyString_FromString(ptrbuf); \
 557     PyObject_SetAttrString(obj, "this", ptrobj); \
 558     Py_DECREF(ptrobj)
 559
 560 #define REINITOBJ2(name, type) \
 561     obj = PyDict_GetItemString(wxPython_dict, #name); \
 562     wxASSERT_MSG(obj != NULL, wxT("Unable to find stock object for " #name)); \
 563     SWIG_MakePtr(ptrbuf, (char *) &name, "_" #type "_p"); \
 564     ptrobj = PyString_FromString(ptrbuf); \
 565     PyObject_SetAttrString(obj, "this", ptrobj); \
 566     Py_DECREF(ptrobj)
 567
 568
 569     REINITOBJ(wxNORMAL_FONT, wxFont);
 570     REINITOBJ(wxSMALL_FONT, wxFont);
 571     REINITOBJ(wxITALIC_FONT, wxFont);
 572     REINITOBJ(wxSWISS_FONT, wxFont);
 573
 574     REINITOBJ(wxRED_PEN, wxPen);
 575     REINITOBJ(wxCYAN_PEN, wxPen);
 576     REINITOBJ(wxGREEN_PEN, wxPen);
 577     REINITOBJ(wxBLACK_PEN, wxPen);
 578     REINITOBJ(wxWHITE_PEN, wxPen);
 579     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 580     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 581     REINITOBJ(wxGREY_PEN, wxPen);
 582     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 583     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 584
 585     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 586     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 587     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 588     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 589     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 590     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 591     REINITOBJ(wxRED_BRUSH, wxBrush);
 592     REINITOBJ(wxGREY_BRUSH, wxBrush);
 593     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 594     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 595
 596     REINITOBJ(wxBLACK, wxColour);
 597     REINITOBJ(wxWHITE, wxColour);
 598     REINITOBJ(wxRED, wxColour);
 599     REINITOBJ(wxBLUE, wxColour);
 600     REINITOBJ(wxGREEN, wxColour);
 601     REINITOBJ(wxCYAN, wxColour);
 602     REINITOBJ(wxLIGHT_GREY, wxColour);
 603
 604     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 605     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 606     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 607
 608     REINITOBJ2(wxNullBitmap, wxBitmap);
 609     REINITOBJ2(wxNullIcon, wxIcon);
 610     REINITOBJ2(wxNullCursor, wxCursor);
 611     REINITOBJ2(wxNullPen, wxPen);
 612     REINITOBJ2(wxNullBrush, wxBrush);
 613     REINITOBJ2(wxNullPalette, wxPalette);
 614     REINITOBJ2(wxNullFont, wxFont);
 615     REINITOBJ2(wxNullColour, wxColour);
 616
 617     REINITOBJ(wxTheFontList, wxFontList);
 618     REINITOBJ(wxThePenList, wxPenList);
 619     REINITOBJ(wxTheBrushList, wxBrushList);
 620     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 621
 622
 623     REINITOBJ(wxTheClipboard, wxClipboard);
 624     REINITOBJ(wxTheMimeTypesManager, wxMimeTypesManager);
 625     REINITOBJ2(wxDefaultValidator, wxValidator);
 626     REINITOBJ2(wxNullImage, wxImage);
 627     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 628
 629 #undef REINITOBJ
 630 #undef REINITOBJ2
 631 }
 632
 633 //---------------------------------------------------------------------------
 634
 635 void wxPyClientData_dtor(wxPyClientData* self) {
 636     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 637                                         // may have already garbage collected the object...
 638         wxPyBeginBlockThreads();
 639         Py_DECREF(self->m_obj);
 640         wxPyEndBlockThreads();
 641     }
 642 }
 643
 644 void wxPyUserData_dtor(wxPyUserData* self) {
 645     if (! wxPyDoingCleanup) {
 646         wxPyBeginBlockThreads();
 647         Py_DECREF(self->m_obj);
 648         wxPyEndBlockThreads();
 649     }
 650 }
 651
 652
 653 // This is called when an OOR controled object is being destroyed.  Although
 654 // the C++ object is going away there is no way to force the Python object
 655 // (and all references to it) to die too.  This causes problems (crashes) in
 656 // wxPython when a python shadow object attempts to call a C++ method using
 657 // the now bogus pointer... So to try and prevent this we'll do a little black
 658 // magic and change the class of the python instance to a class that will
 659 // raise an exception for any attempt to call methods with it.  See
 660 // _wxPyDeadObject in _extras.py for the implementation of this class.
 661 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 662
 663     static PyObject* deadObjectClass = NULL;
 664
 665     wxPyBeginBlockThreads();
 666     if (deadObjectClass == NULL) {
 667         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 668         wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 669         Py_INCREF(deadObjectClass);
 670     }
 671
 672
 673     // Only if there is more than one reference to the object
 674     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
 675         wxASSERT_MSG(PyInstance_Check(self->m_obj), wxT("m_obj not an instance!?!?!"));
 676
 677         // Call __del__, if there is one.
 678         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 679         if (func) {
 680             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 681             Py_XDECREF(rv);
 682             Py_DECREF(func);
 683         }
 684         if (PyErr_Occurred())
 685             PyErr_Clear();      // just ignore it for now
 686
 687         // Clear the instance's dictionary
 688         PyInstanceObject* inst = (PyInstanceObject*)self->m_obj;
 689         PyDict_Clear(inst->in_dict);
 690
 691         // put the name of the old class into the instance, and then reset the
 692         // class to be the dead class.
 693         PyDict_SetItemString(inst->in_dict, "_name", inst->in_class->cl_name);
 694         inst->in_class = (PyClassObject*)deadObjectClass;
 695         Py_INCREF(deadObjectClass);
 696     }
 697
 698     // m_obj is DECREF's in the base class dtor...
 699     wxPyEndBlockThreads();
 700 }
 701
 702
 703 //---------------------------------------------------------------------------
 704 // Stuff used by OOR to find the right wxPython class type to return and to
 705 // build it.
 706
 707
 708 // The pointer type map is used when the "pointer" type name generated by SWIG
 709 // is not the same as the shadow class name, for example wxPyTreeCtrl
 710 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 711 // so we'll just make it a Python dictionary in the wx module's namespace.
 712 // (See __wxSetDictionary)
 713 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 714     if (! wxPyPtrTypeMap)
 715         wxPyPtrTypeMap = PyDict_New();
 716     PyDict_SetItemString(wxPyPtrTypeMap,
 717                          (char*)commonName,
 718                          PyString_FromString((char*)ptrName));
 719 }
 720
 721
 722
 723 PyObject* wxPyClassExists(const wxString& className) {
 724
 725     PyObject* item;
 726     wxString  name(className);
 727     char      buff[64];               // should always be big enough...
 728
 729     if (!className)
 730         return NULL;
 731
 732     // Try the name as-is first
 733     sprintf(buff, "%sPtr", (const char*)name.mbc_str());
 734     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
 735
 736     // if not found see if there is a mapped name for it
 737     if ( ! classobj) {
 738         if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
 739             name = wxString(PyString_AsString(item), *wxConvCurrent);
 740             sprintf(buff, "%sPtr", (const char*)name.mbc_str());
 741             classobj = PyDict_GetItemString(wxPython_dict, buff);
 742         }
 743     }
 744
 745     return classobj;  // returns NULL if not found
 746 }
 747
 748
 749 PyObject*  wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
 750     PyObject* target = NULL;
 751     bool      isEvtHandler = FALSE;
 752
 753     if (source) {
 754         // If it's derived from wxEvtHandler then there may
 755         // already be a pointer to a Python object that we can use
 756         // in the OOR data.
 757         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 758             isEvtHandler = TRUE;
 759             wxEvtHandler* eh = (wxEvtHandler*)source;
 760             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 761             if (data) {
 762                 target = data->m_obj;
 763                 Py_INCREF(target);
 764             }
 765         }
 766
 767         if (! target) {
 768             // Otherwise make it the old fashioned way by making a
 769             // new shadow object and putting this pointer in it.
 770             wxClassInfo* info  = source->GetClassInfo();
 771             wxString     name  = info->GetClassName();
 772             PyObject*    klass = wxPyClassExists(name);
 773             while (info && !klass) {
 774                 name = (wxChar*)info->GetBaseClassName1();
 775                 info = wxClassInfo::FindClass(name);
 776                 klass = wxPyClassExists(name);
 777             }
 778             if (info) {
 779                 target = wxPyConstructObject(source, name, klass, FALSE);
 780                 if (target && isEvtHandler)
 781                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
 782             } else {
 783                 wxString msg(wxT("wxPython class not found for "));
 784                 msg += source->GetClassInfo()->GetClassName();
 785                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
 786                 target = NULL;
 787             }
 788         }
 789     } else {  // source was NULL so return None.
 790         Py_INCREF(Py_None); target = Py_None;
 791     }
 792     return target;
 793 }
 794
 795
 796 PyObject*  wxPyMake_wxSizer(wxSizer* source) {
 797     PyObject* target = NULL;
 798
 799     if (source && wxIsKindOf(source, wxSizer)) {
 800         // If it's derived from wxSizer then there may
 801         // already be a pointer to a Python object that we can use
 802         // in the OOR data.
 803         wxSizer* sz = (wxSizer*)source;
 804         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
 805         if (data) {
 806             target = data->m_obj;
 807             Py_INCREF(target);
 808         }
 809     }
 810     if (! target) {
 811         target = wxPyMake_wxObject(source, FALSE);
 812         if (target != Py_None)
 813             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
 814     }
 815     return target;
 816 }
 817
 818
 819
 820 //---------------------------------------------------------------------------
 821
 822 PyObject* wxPyConstructObject(void* ptr,
 823                               const wxString& className,
 824                               PyObject* klass,
 825                               int setThisOwn) {
 826
 827     PyObject* obj;
 828     PyObject* arg;
 829     PyObject* item;
 830     wxString  name(className);
 831     char      swigptr[64];      // should always be big enough...
 832     char      buff[64];
 833
 834     if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
 835         name = wxString(PyString_AsString(item), *wxConvCurrent);
 836     }
 837     sprintf(buff, "_%s_p", (const char*)name.mbc_str());
 838     SWIG_MakePtr(swigptr, ptr, buff);
 839
 840     arg = Py_BuildValue("(s)", swigptr);
 841     obj = PyInstance_New(klass, arg, NULL);
 842     Py_DECREF(arg);
 843
 844     if (setThisOwn) {
 845         PyObject* one = PyInt_FromLong(1);
 846         PyObject_SetAttrString(obj, "thisown", one);
 847         Py_DECREF(one);
 848     }
 849
 850     return obj;
 851 }
 852
 853
 854 PyObject* wxPyConstructObject(void* ptr,
 855                               const wxString& className,
 856                               int setThisOwn) {
 857     if (!ptr) {
 858         Py_INCREF(Py_None);
 859         return Py_None;
 860     }
 861
 862     char    buff[64];               // should always be big enough...
 863     sprintf(buff, "%sPtr", (const char*)className.mbc_str());
 864
 865     wxASSERT_MSG(wxPython_dict, wxT("wxPython_dict is not set yet!!"));
 866
 867     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
 868     if (! classobj) {
 869         wxString msg(wxT("wxPython class not found for "));
 870         msg += className;
 871         PyErr_SetString(PyExc_NameError, msg.mbc_str());
 872         return NULL;
 873     }
 874
 875     return wxPyConstructObject(ptr, className, classobj, setThisOwn);
 876 }
 877
 878
 879 //---------------------------------------------------------------------------
 880
 881
 882 #ifdef WXP_WITH_THREAD
 883 inline
 884 unsigned long wxPyGetCurrentThreadId() {
 885     return wxThread::GetCurrentId();
 886 }
 887
 888 static PyThreadState* gs_shutdownTState;
 889 static
 890 PyThreadState* wxPyGetThreadState() {
 891     if (wxPyTMutex == NULL) // Python is shutting down...
 892         return gs_shutdownTState;
 893
 894     unsigned long ctid = wxPyGetCurrentThreadId();
 895     PyThreadState* tstate = NULL;
 896
 897     wxPyTMutex->Lock();
 898     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 899         wxPyThreadState& info = wxPyTStates->Item(i);
 900         if (info.tid == ctid) {
 901             tstate = info.tstate;
 902             break;
 903         }
 904     }
 905     wxPyTMutex->Unlock();
 906     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
 907     return tstate;
 908 }
 909
 910 static
 911 void wxPySaveThreadState(PyThreadState* tstate) {
 912     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
 913         gs_shutdownTState = tstate;
 914         return;
 915     }
 916     unsigned long ctid = wxPyGetCurrentThreadId();
 917     wxPyTMutex->Lock();
 918     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 919         wxPyThreadState& info = wxPyTStates->Item(i);
 920         if (info.tid == ctid) {
 921 #if 0
 922             if (info.tstate != tstate)
 923                 wxLogMessage("*** tstate mismatch!???");
 924 #endif
 925             // info.tstate = tstate;    *** DO NOT update existing ones???
 926             // Normally it will never change, but apparently COM callbacks
 927             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
 928             // tstate which will then be garbage the next time we try to use
 929             // it...
 930             wxPyTMutex->Unlock();
 931             return;
 932         }
 933     }
 934     // not found, so add it...
 935     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
 936     wxPyTMutex->Unlock();
 937 }
 938
 939 #endif
 940
 941
 942 // Calls from Python to wxWindows code are wrapped in calls to these
 943 // functions:
 944
 945 PyThreadState* wxPyBeginAllowThreads() {
 946 #ifdef WXP_WITH_THREAD
 947     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
 948     wxPySaveThreadState(saved);
 949     return saved;
 950 #else
 951     return NULL;
 952 #endif
 953 }
 954
 955 void wxPyEndAllowThreads(PyThreadState* saved) {
 956 #ifdef WXP_WITH_THREAD
 957     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
 958 #endif
 959 }
 960
 961
 962
 963 // Calls from wxWindows back to Python code, or even any PyObject
 964 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
 965
 966 void wxPyBeginBlockThreads() {
 967 #ifdef WXP_WITH_THREAD
 968     PyThreadState* tstate = wxPyGetThreadState();
 969     PyEval_RestoreThread(tstate);
 970 #endif
 971 }
 972
 973
 974 void wxPyEndBlockThreads() {
 975 #ifdef WXP_WITH_THREAD
 976     // Is there any need to save it again?
 977     // PyThreadState* tstate =
 978     PyEval_SaveThread();
 979 #endif
 980 }
 981
 982
 983 //---------------------------------------------------------------------------
 984 // wxPyInputStream and wxPyCBInputStream methods
 985
 986
 987 void wxPyInputStream::close() {
 988     /* do nothing for now */
 989 }
 990
 991 void wxPyInputStream::flush() {
 992     /* do nothing for now */
 993 }
 994
 995 bool wxPyInputStream::eof() {
 996     if (m_wxis)
 997         return m_wxis->Eof();
 998     else
 999         return TRUE;
1000 }
1001
1002 wxPyInputStream::~wxPyInputStream() {
1003     /* do nothing */
1004 }
1005
1006
1007
1008
1009 PyObject* wxPyInputStream::read(int size) {
1010     PyObject* obj = NULL;
1011     wxMemoryBuffer buf;
1012     const int BUFSIZE = 1024;
1013
1014     // check if we have a real wxInputStream to work with
1015     if (!m_wxis) {
1016         wxPyBeginBlockThreads();
1017         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1018         wxPyEndBlockThreads();
1019         return NULL;
1020     }
1021
1022     if (size < 0) {
1023         // read while bytes are available on the stream
1024         while ( m_wxis->CanRead() ) {
1025             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1026             buf.UngetAppendBuf(m_wxis->LastRead());
1027         }
1028
1029     } else {  // Read only size number of characters
1030         m_wxis->Read(buf.GetWriteBuf(size), size);
1031         buf.UngetWriteBuf(m_wxis->LastRead());
1032     }
1033
1034     // error check
1035     wxPyBeginBlockThreads();
1036     wxStreamError err = m_wxis->GetLastError();
1037     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1038         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1039     }
1040     else {
1041         // We use only strings for the streams, not unicode
1042         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1043     }
1044     wxPyEndBlockThreads();
1045     return obj;
1046 }
1047
1048
1049 PyObject* wxPyInputStream::readline(int size) {
1050     PyObject* obj = NULL;
1051     wxMemoryBuffer buf;
1052     int i;
1053     char ch;
1054
1055     // check if we have a real wxInputStream to work with
1056     if (!m_wxis) {
1057         wxPyBeginBlockThreads();
1058         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1059         wxPyEndBlockThreads();
1060         return NULL;
1061     }
1062
1063     // read until \n or byte limit reached
1064     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1065         ch = m_wxis->GetC();
1066         buf.AppendByte(ch);
1067     }
1068
1069     // errorcheck
1070     wxPyBeginBlockThreads();
1071     wxStreamError err = m_wxis->GetLastError();
1072     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1073         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1074     }
1075     else {
1076         // We use only strings for the streams, not unicode
1077         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1078     }
1079     wxPyEndBlockThreads();
1080     return obj;
1081 }
1082
1083
1084 PyObject* wxPyInputStream::readlines(int sizehint) {
1085     PyObject* pylist;
1086
1087     // check if we have a real wxInputStream to work with
1088     if (!m_wxis) {
1089         wxPyBeginBlockThreads();
1090         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1091         wxPyEndBlockThreads();
1092         return NULL;
1093     }
1094
1095     // init list
1096     wxPyBeginBlockThreads();
1097     pylist = PyList_New(0);
1098     if (!pylist) {
1099         wxPyBeginBlockThreads();
1100         PyErr_NoMemory();
1101         wxPyEndBlockThreads();
1102         return NULL;
1103     }
1104
1105     // read sizehint bytes or until EOF
1106     int i;
1107     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1108         PyObject* s = this->readline();
1109         if (s == NULL) {
1110             wxPyBeginBlockThreads();
1111             Py_DECREF(pylist);
1112             wxPyEndBlockThreads();
1113             return NULL;
1114         }
1115         wxPyBeginBlockThreads();
1116         PyList_Append(pylist, s);
1117         i += PyString_Size(s);
1118         wxPyEndBlockThreads();
1119     }
1120
1121     // error check
1122     wxStreamError err = m_wxis->GetLastError();
1123     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1124         wxPyBeginBlockThreads();
1125         Py_DECREF(pylist);
1126         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1127         wxPyEndBlockThreads();
1128         return NULL;
1129     }
1130
1131     return pylist;
1132 }
1133
1134
1135 void wxPyInputStream::seek(int offset, int whence) {
1136     if (m_wxis)
1137         m_wxis->SeekI(offset, wxSeekMode(whence));
1138 }
1139
1140 int wxPyInputStream::tell(){
1141     if (m_wxis)
1142         return m_wxis->TellI();
1143     else return 0;
1144 }
1145
1146
1147
1148
1149 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1150     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1151 {}
1152
1153
1154 wxPyCBInputStream::~wxPyCBInputStream() {
1155     if (m_block) wxPyBeginBlockThreads();
1156     Py_XDECREF(m_read);
1157     Py_XDECREF(m_seek);
1158     Py_XDECREF(m_tell);
1159     if (m_block) wxPyEndBlockThreads();
1160 }
1161
1162
1163 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1164     if (block) wxPyBeginBlockThreads();
1165
1166     PyObject* read = getMethod(py, "read");
1167     PyObject* seek = getMethod(py, "seek");
1168     PyObject* tell = getMethod(py, "tell");
1169
1170     if (!read) {
1171         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1172         Py_XDECREF(read);
1173         Py_XDECREF(seek);
1174         Py_XDECREF(tell);
1175         if (block) wxPyEndBlockThreads();
1176         return NULL;
1177     }
1178
1179     if (block) wxPyEndBlockThreads();
1180     return new wxPyCBInputStream(read, seek, tell, block);
1181 }
1182
1183
1184 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1185     return wxPyCBInputStream::create(py, block);
1186 }
1187
1188 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1189     if (!PyObject_HasAttrString(py, name))
1190         return NULL;
1191     PyObject* o = PyObject_GetAttrString(py, name);
1192     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1193         Py_DECREF(o);
1194         return NULL;
1195     }
1196     return o;
1197 }
1198
1199
1200 size_t wxPyCBInputStream::GetSize() const {
1201     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1202     if (m_seek && m_tell) {
1203         off_t temp = self->OnSysTell();
1204         off_t ret = self->OnSysSeek(0, wxFromEnd);
1205         self->OnSysSeek(temp, wxFromStart);
1206         return ret;
1207     }
1208     else
1209         return 0;
1210 }
1211
1212
1213 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1214     if (bufsize == 0)
1215         return 0;
1216
1217     wxPyBeginBlockThreads();
1218     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1219     PyObject* result = PyEval_CallObject(m_read, arglist);
1220     Py_DECREF(arglist);
1221
1222     size_t o = 0;
1223     if ((result != NULL) && PyString_Check(result)) {
1224         o = PyString_Size(result);
1225         if (o == 0)
1226             m_lasterror = wxSTREAM_EOF;
1227         if (o > bufsize)
1228             o = bufsize;
1229         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1230         Py_DECREF(result);
1231
1232     }
1233     else
1234         m_lasterror = wxSTREAM_READ_ERROR;
1235     wxPyEndBlockThreads();
1236     return o;
1237 }
1238
1239 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1240     m_lasterror = wxSTREAM_WRITE_ERROR;
1241     return 0;
1242 }
1243
1244 off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
1245     wxPyBeginBlockThreads();
1246 #ifdef _LARGE_FILES
1247     // off_t is a 64-bit value...
1248     PyObject* arglist = Py_BuildValue("(Li)", off, mode);
1249 #else
1250     PyObject* arglist = Py_BuildValue("(ii)", off, mode);
1251 #endif
1252     PyObject* result = PyEval_CallObject(m_seek, arglist);
1253     Py_DECREF(arglist);
1254     Py_XDECREF(result);
1255     wxPyEndBlockThreads();
1256     return OnSysTell();
1257 }
1258
1259
1260 off_t wxPyCBInputStream::OnSysTell() const {
1261     wxPyBeginBlockThreads();
1262     PyObject* arglist = Py_BuildValue("()");
1263     PyObject* result = PyEval_CallObject(m_tell, arglist);
1264     Py_DECREF(arglist);
1265     off_t o = 0;
1266     if (result != NULL) {
1267 #ifdef _LARGE_FILES
1268         if (PyLong_Check(result))
1269             o = PyLong_AsLongLong(result);
1270         else
1271 #else
1272         o = PyInt_AsLong(result);
1273 #endif
1274         Py_DECREF(result);
1275     };
1276     wxPyEndBlockThreads();
1277     return o;
1278 }
1279
1280 //----------------------------------------------------------------------
1281
1282 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1283
1284 wxPyCallback::wxPyCallback(PyObject* func) {
1285     m_func = func;
1286     Py_INCREF(m_func);
1287 }
1288
1289 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1290     m_func = other.m_func;
1291     Py_INCREF(m_func);
1292 }
1293
1294 wxPyCallback::~wxPyCallback() {
1295     wxPyBeginBlockThreads();
1296     Py_DECREF(m_func);
1297     wxPyEndBlockThreads();
1298 }
1299
1300
1301
1302 // This function is used for all events destined for Python event handlers.
1303 void wxPyCallback::EventThunker(wxEvent& event) {
1304     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1305     PyObject*       func = cb->m_func;
1306     PyObject*       result;
1307     PyObject*       arg;
1308     PyObject*       tuple;
1309
1310
1311     wxPyBeginBlockThreads();
1312     wxString className = event.GetClassInfo()->GetClassName();
1313
1314     if (className == wxT("wxPyEvent"))
1315         arg = ((wxPyEvent*)&event)->GetSelf();
1316     else if (className == wxT("wxPyCommandEvent"))
1317         arg = ((wxPyCommandEvent*)&event)->GetSelf();
1318     else {
1319         arg = wxPyConstructObject((void*)&event, className);
1320     }
1321
1322     tuple = PyTuple_New(1);
1323     PyTuple_SET_ITEM(tuple, 0, arg);
1324     result = PyEval_CallObject(func, tuple);
1325     Py_DECREF(tuple);
1326     if (result) {
1327         Py_DECREF(result);
1328         PyErr_Clear();       // Just in case...
1329     } else {
1330         PyErr_Print();
1331     }
1332     wxPyEndBlockThreads();
1333 }
1334
1335
1336 //----------------------------------------------------------------------
1337
1338 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1339       m_lastFound = NULL;
1340       m_self = other.m_self;
1341       m_class = other.m_class;
1342       if (m_self) {
1343           Py_INCREF(m_self);
1344           Py_INCREF(m_class);
1345       }
1346 }
1347
1348
1349 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1350     m_self = self;
1351     m_class = klass;
1352     m_incRef = incref;
1353     if (incref) {
1354         Py_INCREF(m_self);
1355         Py_INCREF(m_class);
1356     }
1357 }
1358
1359
1360 #if PYTHON_API_VERSION >= 1011
1361
1362 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1363 // in which the method was defined.  Starting with 2.2 it returns
1364 // "class that asked for the method" which seems totally bogus to me
1365 // but apprently it fixes some obscure problem waiting to happen in
1366 // Python.  Since the API was not documented Guido and the gang felt
1367 // safe in changing it.  Needless to say that totally screwed up the
1368 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1369 // code to find the class where the method is actually defined...
1370
1371 static
1372 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1373 {
1374     int i, n;
1375
1376     if (PyType_Check(klass)) {      // new style classes
1377         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1378         // (TODO: This part is not tested yet, so I'm not sure it is correct...)
1379         PyTypeObject* type = (PyTypeObject*)klass;
1380         PyObject *mro, *res, *base, *dict;
1381         /* Look in tp_dict of types in MRO */
1382         mro = type->tp_mro;
1383         assert(PyTuple_Check(mro));
1384         n = PyTuple_GET_SIZE(mro);
1385         for (i = 0; i < n; i++) {
1386             base = PyTuple_GET_ITEM(mro, i);
1387             if (PyClass_Check(base))
1388                 dict = ((PyClassObject *)base)->cl_dict;
1389             else {
1390                 assert(PyType_Check(base));
1391                 dict = ((PyTypeObject *)base)->tp_dict;
1392             }
1393             assert(dict && PyDict_Check(dict));
1394             res = PyDict_GetItem(dict, name);
1395             if (res != NULL)
1396                 return base;
1397         }
1398         return NULL;
1399     }
1400
1401     else if (PyClass_Check(klass)) { // old style classes
1402         // This code is borrowed/adapted from class_lookup in classobject.c
1403         PyClassObject* cp = (PyClassObject*)klass;
1404         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1405         if (value != NULL) {
1406             return (PyObject*)cp;
1407         }
1408         n = PyTuple_Size(cp->cl_bases);
1409         for (i = 0; i < n; i++) {
1410             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1411             PyObject *v = PyFindClassWithAttr(base, name);
1412             if (v != NULL)
1413                 return v;
1414         }
1415         return NULL;
1416     }
1417     return NULL;
1418 }
1419 #endif
1420
1421
1422 static
1423 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1424 {
1425     PyObject* mgc = PyMethod_GET_CLASS(method);
1426
1427 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1428     return mgc;
1429 #else                             // 2.2 and after, the hard way...
1430
1431     PyObject* nameo = PyString_FromString(name);
1432     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1433     Py_DECREF(nameo);
1434     return klass;
1435 #endif
1436 }
1437
1438
1439
1440 bool wxPyCallbackHelper::findCallback(const char* name) const {
1441     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1442     self->m_lastFound = NULL;
1443
1444     // If the object (m_self) has an attibute of the given name...
1445     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1446         PyObject *method, *klass;
1447         method = PyObject_GetAttrString(m_self, (char*)name);
1448
1449         // ...and if that attribute is a method, and if that method's class is
1450         // not from a base class...
1451         if (PyMethod_Check(method) &&
1452             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1453             ((klass == m_class) || PyClass_IsSubclass(klass, m_class))) {
1454
1455             // ...then we'll save a pointer to the method so callCallback can call it.
1456             self->m_lastFound = method;
1457         }
1458         else {
1459             Py_DECREF(method);
1460         }
1461     }
1462     return m_lastFound != NULL;
1463 }
1464
1465
1466 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1467     PyObject*   result;
1468     int         retval = FALSE;
1469
1470     result = callCallbackObj(argTuple);
1471     if (result) {                       // Assumes an integer return type...
1472         retval = PyInt_AsLong(result);
1473         Py_DECREF(result);
1474         PyErr_Clear();                  // forget about it if it's not...
1475     }
1476     return retval;
1477 }
1478
1479 // Invoke the Python callable object, returning the raw PyObject return
1480 // value.  Caller should DECREF the return value and also call PyEval_SaveThread.
1481 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1482     PyObject* result;
1483
1484     // Save a copy of the pointer in case the callback generates another
1485     // callback.  In that case m_lastFound will have a different value when
1486     // it gets back here...
1487     PyObject* method = m_lastFound;
1488
1489     result = PyEval_CallObject(method, argTuple);
1490     Py_DECREF(argTuple);
1491     Py_DECREF(method);
1492     if (!result) {
1493         PyErr_Print();
1494     }
1495     return result;
1496 }
1497
1498
1499 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1500     cbh.setSelf(self, klass, incref);
1501 }
1502
1503 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1504     return cbh.findCallback(name);
1505 }
1506
1507 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1508     return cbh.callCallback(argTuple);
1509 }
1510
1511 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1512     return cbh.callCallbackObj(argTuple);
1513 }
1514
1515
1516 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1517     if (cbh->m_incRef) {
1518         wxPyBeginBlockThreads();
1519         Py_XDECREF(cbh->m_self);
1520         Py_XDECREF(cbh->m_class);
1521         wxPyEndBlockThreads();
1522     }
1523 }
1524
1525 //---------------------------------------------------------------------------
1526 //---------------------------------------------------------------------------
1527 // These event classes can be derived from in Python and passed through the event
1528 // system without losing anything.  They do this by keeping a reference to
1529 // themselves and some special case handling in wxPyCallback::EventThunker.
1530
1531
1532 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1533     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1534     //Py_INCREF(m_self);        //      circular loops...
1535     m_cloned = FALSE;
1536 }
1537
1538 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1539     wxPyBeginBlockThreads();
1540     if (m_cloned)
1541         Py_DECREF(m_self);
1542     wxPyEndBlockThreads();
1543 }
1544
1545 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1546     wxPyBeginBlockThreads();
1547     if (m_cloned)
1548         Py_DECREF(m_self);
1549     m_self = self;
1550     if (clone) {
1551         Py_INCREF(m_self);
1552         m_cloned = TRUE;
1553     }
1554     wxPyEndBlockThreads();
1555 }
1556
1557 PyObject* wxPyEvtSelfRef::GetSelf() const {
1558     Py_INCREF(m_self);
1559     return m_self;
1560 }
1561
1562
1563 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1564 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1565
1566
1567 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1568     : wxEvent(winid, commandType) {
1569 }
1570
1571
1572 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1573     : wxEvent(evt)
1574 {
1575     SetSelf(evt.m_self, TRUE);
1576 }
1577
1578
1579 wxPyEvent::~wxPyEvent() {
1580 }
1581
1582
1583 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1584     : wxCommandEvent(commandType, id) {
1585 }
1586
1587
1588 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1589     : wxCommandEvent(evt)
1590 {
1591     SetSelf(evt.m_self, TRUE);
1592 }
1593
1594
1595 wxPyCommandEvent::~wxPyCommandEvent() {
1596 }
1597
1598
1599
1600
1601 //---------------------------------------------------------------------------
1602 //---------------------------------------------------------------------------
1603
1604
1605 wxPyTimer::wxPyTimer(PyObject* callback) {
1606     func = callback;
1607     Py_INCREF(func);
1608 }
1609
1610 wxPyTimer::~wxPyTimer() {
1611     wxPyBeginBlockThreads();
1612     Py_DECREF(func);
1613     wxPyEndBlockThreads();
1614 }
1615
1616 void wxPyTimer::Notify() {
1617     if (!func || func == Py_None) {
1618         wxTimer::Notify();
1619     }
1620     else {
1621         wxPyBeginBlockThreads();
1622
1623         PyObject*   result;
1624         PyObject*   args = Py_BuildValue("()");
1625
1626         result = PyEval_CallObject(func, args);
1627         Py_DECREF(args);
1628         if (result) {
1629             Py_DECREF(result);
1630             PyErr_Clear();
1631         } else {
1632             PyErr_Print();
1633         }
1634
1635         wxPyEndBlockThreads();
1636     }
1637 }
1638
1639
1640
1641 //---------------------------------------------------------------------------
1642 //---------------------------------------------------------------------------
1643 // Convert a wxList to a Python List
1644
1645 PyObject* wxPy_ConvertList(wxListBase* listbase, const char* className) {
1646     wxList*     list = (wxList*)listbase;  // this is probably bad...
1647     PyObject*   pyList;
1648     PyObject*   pyObj;
1649     wxObject*   wxObj;
1650     wxNode*     node = list->GetFirst();
1651
1652     wxPyBeginBlockThreads();
1653     pyList = PyList_New(0);
1654     while (node) {
1655         wxObj = node->GetData();
1656         pyObj = wxPyMake_wxObject(wxObj); //wxPyConstructObject(wxObj, className);
1657         PyList_Append(pyList, pyObj);
1658         node = node->GetNext();
1659     }
1660     wxPyEndBlockThreads();
1661     return pyList;
1662 }
1663
1664 //----------------------------------------------------------------------
1665
1666 long wxPyGetWinHandle(wxWindow* win) {
1667 #ifdef __WXMSW__
1668     return (long)win->GetHandle();
1669 #endif
1670
1671     // Find and return the actual X-Window.
1672 #ifdef __WXGTK__
1673     if (win->m_wxwindow) {
1674 #ifdef __WXGTK20__
1675         return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window);
1676 #else
1677         GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window;
1678         if (bwin) {
1679             return (long)bwin->xwindow;
1680         }
1681 #endif
1682     }
1683 #endif
1684     return 0;
1685 }
1686
1687 //----------------------------------------------------------------------
1688 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1689 // included in every file over and over again...
1690
1691 #if PYTHON_API_VERSION >= 1009
1692     static char* wxStringErrorMsg = "String or Unicode type required";
1693 #else
1694     static char* wxStringErrorMsg = "String type required";
1695 #endif
1696
1697
1698 wxString* wxString_in_helper(PyObject* source) {
1699     wxString* target;
1700 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1701     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1702         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1703         return NULL;
1704     }
1705 #if wxUSE_UNICODE
1706     if (PyUnicode_Check(source)) {
1707         target = new wxString();
1708         size_t len = PyUnicode_GET_SIZE(source);
1709         if (len) {
1710             PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len);
1711             target->UngetWriteBuf();
1712         }
1713     } else {
1714         // It is a string, get pointers to it and transform to unicode
1715         char* tmpPtr; int tmpSize;
1716         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1717         target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
1718     }
1719 #else
1720     char* tmpPtr; int tmpSize;
1721     if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
1722         PyErr_SetString(PyExc_TypeError, "Unable to convert string");
1723         return NULL;
1724     }
1725     target = new wxString(tmpPtr, tmpSize);
1726 #endif // wxUSE_UNICODE
1727
1728 #else  // No Python unicode API (1.5.2)
1729     if (!PyString_Check(source)) {
1730         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1731         return NULL;
1732     }
1733     target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1734 #endif
1735     return target;
1736 }
1737
1738
1739 // Similar to above except doesn't use "new" and doesn't set an exception
1740 wxString Py2wxString(PyObject* source)
1741 {
1742     wxString target;
1743     bool     doDecRef = FALSE;
1744
1745 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1746     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1747         // Convert to String if not one already...  (TODO: Unicode too?)
1748         source = PyObject_Str(source);
1749         doDecRef = TRUE;
1750     }
1751
1752 #if wxUSE_UNICODE
1753     if (PyUnicode_Check(source)) {
1754         size_t len = PyUnicode_GET_SIZE(source);
1755         if (len) {
1756             PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len);
1757             target.UngetWriteBuf();
1758         }
1759     } else {
1760         // It is a string, get pointers to it and transform to unicode
1761         char* tmpPtr; int tmpSize;
1762         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1763         target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
1764     }
1765 #else
1766     char* tmpPtr; int tmpSize;
1767     PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1768     target = wxString(tmpPtr, tmpSize);
1769 #endif // wxUSE_UNICODE
1770
1771 #else  // No Python unicode API (1.5.2)
1772     if (!PyString_Check(source)) {
1773         // Convert to String if not one already...
1774         source = PyObject_Str(source);
1775         doDecRef = TRUE;
1776     }
1777     target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1778 #endif
1779
1780     if (doDecRef)
1781         Py_DECREF(source);
1782     return target;
1783 }
1784
1785
1786 // Make either a Python String or Unicode object, depending on build mode
1787 PyObject* wx2PyString(const wxString& src)
1788 {
1789     PyObject* str;
1790 #if wxUSE_UNICODE
1791     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1792 #else
1793     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1794 #endif
1795     return str;
1796 }
1797
1798
1799 //----------------------------------------------------------------------
1800
1801
1802 byte* byte_LIST_helper(PyObject* source) {
1803     if (!PyList_Check(source)) {
1804         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1805         return NULL;
1806     }
1807     int count = PyList_Size(source);
1808     byte* temp = new byte[count];
1809     if (! temp) {
1810         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1811         return NULL;
1812     }
1813     for (int x=0; x<count; x++) {
1814         PyObject* o = PyList_GetItem(source, x);
1815         if (! PyInt_Check(o)) {
1816             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1817             return NULL;
1818         }
1819         temp[x] = (byte)PyInt_AsLong(o);
1820     }
1821     return temp;
1822 }
1823
1824
1825 int* int_LIST_helper(PyObject* source) {
1826     if (!PyList_Check(source)) {
1827         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1828         return NULL;
1829     }
1830     int count = PyList_Size(source);
1831     int* temp = new int[count];
1832     if (! temp) {
1833         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1834         return NULL;
1835     }
1836     for (int x=0; x<count; x++) {
1837         PyObject* o = PyList_GetItem(source, x);
1838         if (! PyInt_Check(o)) {
1839             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1840             return NULL;
1841         }
1842         temp[x] = PyInt_AsLong(o);
1843     }
1844     return temp;
1845 }
1846
1847
1848 long* long_LIST_helper(PyObject* source) {
1849     if (!PyList_Check(source)) {
1850         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1851         return NULL;
1852     }
1853     int count = PyList_Size(source);
1854     long* temp = new long[count];
1855     if (! temp) {
1856         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1857         return NULL;
1858     }
1859     for (int x=0; x<count; x++) {
1860         PyObject* o = PyList_GetItem(source, x);
1861         if (! PyInt_Check(o)) {
1862             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1863             return NULL;
1864         }
1865         temp[x] = PyInt_AsLong(o);
1866     }
1867     return temp;
1868 }
1869
1870
1871 char** string_LIST_helper(PyObject* source) {
1872     if (!PyList_Check(source)) {
1873         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1874         return NULL;
1875     }
1876     int count = PyList_Size(source);
1877     char** temp = new char*[count];
1878     if (! temp) {
1879         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1880         return NULL;
1881     }
1882     for (int x=0; x<count; x++) {
1883         PyObject* o = PyList_GetItem(source, x);
1884         if (! PyString_Check(o)) {
1885             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1886             return NULL;
1887         }
1888         temp[x] = PyString_AsString(o);
1889     }
1890     return temp;
1891 }
1892
1893 //--------------------------------
1894 // Part of patch from Tim Hochberg
1895 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
1896     if (PyInt_Check(o1) && PyInt_Check(o2)) {
1897         point->x = PyInt_AS_LONG(o1);
1898         point->y = PyInt_AS_LONG(o2);
1899         return true;
1900     }
1901     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
1902         point->x = (int)PyFloat_AS_DOUBLE(o1);
1903         point->y = (int)PyFloat_AS_DOUBLE(o2);
1904         return true;
1905     }
1906     if (PyInstance_Check(o1) || PyInstance_Check(o2)) {
1907         // Disallow instances because they can cause havok
1908         return false;
1909     }
1910     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
1911         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
1912         point->x = PyInt_AsLong(o1);
1913         point->y = PyInt_AsLong(o2);
1914         return true;
1915     }
1916     return false;
1917 }
1918
1919
1920 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
1921     // Putting all of the declarations here allows
1922     // us to put the error handling all in one place.
1923     int x;
1924     wxPoint* temp;
1925     PyObject *o, *o1, *o2;
1926     bool isFast = PyList_Check(source) || PyTuple_Check(source);
1927
1928     if (!PySequence_Check(source)) {
1929         goto error0;
1930     }
1931
1932     // The length of the sequence is returned in count.
1933     *count = PySequence_Length(source);
1934     if (*count < 0) {
1935         goto error0;
1936     }
1937
1938     temp = new wxPoint[*count];
1939     if (!temp) {
1940         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1941         return NULL;
1942     }
1943     for (x=0; x<*count; x++) {
1944         // Get an item: try fast way first.
1945         if (isFast) {
1946             o = PySequence_Fast_GET_ITEM(source, x);
1947         }
1948         else {
1949             o = PySequence_GetItem(source, x);
1950             if (o == NULL) {
1951                 goto error1;
1952             }
1953         }
1954
1955         // Convert o to wxPoint.
1956         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
1957             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
1958             o1 = PySequence_Fast_GET_ITEM(o, 0);
1959             o2 = PySequence_Fast_GET_ITEM(o, 1);
1960             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1961                 goto error2;
1962             }
1963         }
1964         else if (PyInstance_Check(o)) {
1965             wxPoint* pt;
1966             if (SWIG_GetPtrObj(o, (void **)&pt, "_wxPoint_p")) {
1967                 goto error2;
1968             }
1969             temp[x] = *pt;
1970         }
1971         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
1972             o1 = PySequence_GetItem(o, 0);
1973             o2 = PySequence_GetItem(o, 1);
1974             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1975                 goto error3;
1976             }
1977             Py_DECREF(o1);
1978             Py_DECREF(o2);
1979         }
1980         else {
1981             goto error2;
1982         }
1983         // Clean up.
1984         if (!isFast)
1985             Py_DECREF(o);
1986     }
1987     return temp;
1988
1989 error3:
1990     Py_DECREF(o1);
1991     Py_DECREF(o2);
1992 error2:
1993     if (!isFast)
1994         Py_DECREF(o);
1995 error1:
1996     delete [] temp;
1997 error0:
1998     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
1999     return NULL;
2000 }
2001 // end of patch
2002 //------------------------------
2003
2004
2005 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2006     if (!PyList_Check(source)) {
2007         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2008         return NULL;
2009     }
2010     int count = PyList_Size(source);
2011     wxBitmap** temp = new wxBitmap*[count];
2012     if (! temp) {
2013         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2014         return NULL;
2015     }
2016     for (int x=0; x<count; x++) {
2017         PyObject* o = PyList_GetItem(source, x);
2018         if (PyInstance_Check(o)) {
2019             wxBitmap*    pt;
2020             if (SWIG_GetPtrObj(o, (void **) &pt,"_wxBitmap_p")) {
2021                 PyErr_SetString(PyExc_TypeError,"Expected _wxBitmap_p.");
2022                 return NULL;
2023             }
2024             temp[x] = pt;
2025         }
2026         else {
2027             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2028             return NULL;
2029         }
2030     }
2031     return temp;
2032 }
2033
2034
2035
2036 wxString* wxString_LIST_helper(PyObject* source) {
2037     if (!PyList_Check(source)) {
2038         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2039         return NULL;
2040     }
2041     int count = PyList_Size(source);
2042     wxString* temp = new wxString[count];
2043     if (! temp) {
2044         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2045         return NULL;
2046     }
2047     for (int x=0; x<count; x++) {
2048         PyObject* o = PyList_GetItem(source, x);
2049 #if PYTHON_API_VERSION >= 1009
2050         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2051             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2052             return NULL;
2053         }
2054 #else
2055         if (! PyString_Check(o)) {
2056             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2057             return NULL;
2058         }
2059 #endif
2060
2061         wxString* pStr = wxString_in_helper(o);
2062         temp[x] = *pStr;
2063         delete pStr;
2064     }
2065     return temp;
2066 }
2067
2068
2069 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2070     if (!PyList_Check(source)) {
2071         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2072         return NULL;
2073     }
2074     int count                = PyList_Size(source);
2075     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2076     if (! temp) {
2077         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2078         return NULL;
2079     }
2080     for (int x=0; x<count; x++) {
2081         PyObject* o = PyList_GetItem(source, x);
2082         if (PyInstance_Check(o)) {
2083             wxAcceleratorEntry* ae;
2084             if (SWIG_GetPtrObj(o, (void **) &ae,"_wxAcceleratorEntry_p")) {
2085                 PyErr_SetString(PyExc_TypeError,"Expected _wxAcceleratorEntry_p.");
2086                 return NULL;
2087             }
2088             temp[x] = *ae;
2089         }
2090         else if (PyTuple_Check(o)) {
2091             PyObject* o1 = PyTuple_GetItem(o, 0);
2092             PyObject* o2 = PyTuple_GetItem(o, 1);
2093             PyObject* o3 = PyTuple_GetItem(o, 2);
2094             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2095         }
2096         else {
2097             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2098             return NULL;
2099         }
2100     }
2101     return temp;
2102 }
2103
2104
2105 wxPen** wxPen_LIST_helper(PyObject* source) {
2106     if (!PyList_Check(source)) {
2107         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2108         return NULL;
2109     }
2110     int count = PyList_Size(source);
2111     wxPen** temp = new wxPen*[count];
2112     if (!temp) {
2113         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2114         return NULL;
2115     }
2116     for (int x=0; x<count; x++) {
2117         PyObject* o = PyList_GetItem(source, x);
2118         if (PyInstance_Check(o)) {
2119             wxPen*  pt;
2120             if (SWIG_GetPtrObj(o, (void **) &pt,"_wxPen_p")) {
2121                 delete temp;
2122                 PyErr_SetString(PyExc_TypeError,"Expected _wxPen_p.");
2123                 return NULL;
2124             }
2125             temp[x] = pt;
2126         }
2127         else {
2128             delete temp;
2129             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2130             return NULL;
2131         }
2132     }
2133     return temp;
2134 }
2135
2136
2137 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2138     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2139     PyObject *o1, *o2;
2140
2141     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2142         return FALSE;
2143
2144     if (isFast) {
2145         o1 = PySequence_Fast_GET_ITEM(source, 0);
2146         o2 = PySequence_Fast_GET_ITEM(source, 1);
2147     }
2148     else {
2149         o1 = PySequence_GetItem(source, 0);
2150         o2 = PySequence_GetItem(source, 1);
2151     }
2152
2153     *i1 = PyInt_AsLong(o1);
2154     *i2 = PyInt_AsLong(o2);
2155
2156     if (! isFast) {
2157         Py_DECREF(o1);
2158         Py_DECREF(o2);
2159     }
2160     return TRUE;
2161 }
2162
2163
2164 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2165     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2166     PyObject *o1, *o2, *o3, *o4;
2167
2168     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2169         return FALSE;
2170
2171     if (isFast) {
2172         o1 = PySequence_Fast_GET_ITEM(source, 0);
2173         o2 = PySequence_Fast_GET_ITEM(source, 1);
2174         o3 = PySequence_Fast_GET_ITEM(source, 2);
2175         o4 = PySequence_Fast_GET_ITEM(source, 3);
2176     }
2177     else {
2178         o1 = PySequence_GetItem(source, 0);
2179         o2 = PySequence_GetItem(source, 1);
2180         o3 = PySequence_GetItem(source, 2);
2181         o4 = PySequence_GetItem(source, 3);
2182     }
2183
2184     *i1 = PyInt_AsLong(o1);
2185     *i2 = PyInt_AsLong(o2);
2186     *i3 = PyInt_AsLong(o3);
2187     *i4 = PyInt_AsLong(o4);
2188
2189     if (! isFast) {
2190         Py_DECREF(o1);
2191         Py_DECREF(o2);
2192         Py_DECREF(o3);
2193         Py_DECREF(o4);
2194     }
2195     return TRUE;
2196 }
2197
2198
2199 //----------------------------------------------------------------------
2200
2201 bool wxSize_helper(PyObject* source, wxSize** obj) {
2202
2203     // If source is an object instance then it may already be the right type
2204     if (PyInstance_Check(source)) {
2205         wxSize* ptr;
2206         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxSize_p"))
2207             goto error;
2208         *obj = ptr;
2209         return TRUE;
2210     }
2211     // otherwise a 2-tuple of integers is expected
2212     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2213         PyObject* o1 = PySequence_GetItem(source, 0);
2214         PyObject* o2 = PySequence_GetItem(source, 1);
2215         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2216             Py_DECREF(o1);
2217             Py_DECREF(o2);
2218             goto error;
2219         }
2220         **obj = wxSize(PyInt_AsLong(o1), PyInt_AsLong(o2));
2221         Py_DECREF(o1);
2222         Py_DECREF(o2);
2223         return TRUE;
2224     }
2225
2226  error:
2227     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxSize object.");
2228     return FALSE;
2229 }
2230
2231
2232 bool wxPoint_helper(PyObject* source, wxPoint** obj) {
2233
2234     // If source is an object instance then it may already be the right type
2235     if (PyInstance_Check(source)) {
2236         wxPoint* ptr;
2237         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint_p"))
2238             goto error;
2239         *obj = ptr;
2240         return TRUE;
2241     }
2242     // otherwise a length-2 sequence of integers is expected
2243     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2244         PyObject* o1 = PySequence_GetItem(source, 0);
2245         PyObject* o2 = PySequence_GetItem(source, 1);
2246         // This should really check for integers, not numbers -- but that would break code.
2247         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2248             Py_DECREF(o1);
2249             Py_DECREF(o2);
2250             goto error;
2251         }
2252         **obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
2253         Py_DECREF(o1);
2254         Py_DECREF(o2);
2255         return TRUE;
2256     }
2257  error:
2258     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxPoint object.");
2259     return FALSE;
2260 }
2261
2262
2263
2264 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2265
2266     // If source is an object instance then it may already be the right type
2267     if (PyInstance_Check(source)) {
2268         wxRealPoint* ptr;
2269         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRealPoint_p"))
2270             goto error;
2271         *obj = ptr;
2272         return TRUE;
2273     }
2274     // otherwise a 2-tuple of floats is expected
2275     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2276         PyObject* o1 = PySequence_GetItem(source, 0);
2277         PyObject* o2 = PySequence_GetItem(source, 1);
2278         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2279             Py_DECREF(o1);
2280             Py_DECREF(o2);
2281             goto error;
2282         }
2283         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2284         Py_DECREF(o1);
2285         Py_DECREF(o2);
2286         return TRUE;
2287     }
2288
2289  error:
2290     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2291     return FALSE;
2292 }
2293
2294
2295
2296
2297 bool wxRect_helper(PyObject* source, wxRect** obj) {
2298
2299     // If source is an object instance then it may already be the right type
2300     if (PyInstance_Check(source)) {
2301         wxRect* ptr;
2302         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRect_p"))
2303             goto error;
2304         *obj = ptr;
2305         return TRUE;
2306     }
2307     // otherwise a 4-tuple of integers is expected
2308     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2309         PyObject* o1 = PySequence_GetItem(source, 0);
2310         PyObject* o2 = PySequence_GetItem(source, 1);
2311         PyObject* o3 = PySequence_GetItem(source, 2);
2312         PyObject* o4 = PySequence_GetItem(source, 3);
2313         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2314             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2315             Py_DECREF(o1);
2316             Py_DECREF(o2);
2317             Py_DECREF(o3);
2318             Py_DECREF(o4);
2319             goto error;
2320         }
2321         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2322                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2323         Py_DECREF(o1);
2324         Py_DECREF(o2);
2325         Py_DECREF(o3);
2326         Py_DECREF(o4);
2327         return TRUE;
2328     }
2329
2330  error:
2331     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2332     return FALSE;
2333 }
2334
2335
2336
2337 bool wxColour_helper(PyObject* source, wxColour** obj) {
2338
2339     // If source is an object instance then it may already be the right type
2340     if (PyInstance_Check(source)) {
2341         wxColour* ptr;
2342         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxColour_p"))
2343             goto error;
2344         *obj = ptr;
2345         return TRUE;
2346     }
2347     // otherwise check for a string
2348     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2349         wxString spec = Py2wxString(source);
2350         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2351             long red, green, blue;
2352             red = green = blue = 0;
2353             spec.Mid(1,2).ToLong(&red,   16);
2354             spec.Mid(3,2).ToLong(&green, 16);
2355             spec.Mid(5,2).ToLong(&blue,  16);
2356
2357             **obj = wxColour(red, green, blue);
2358             return TRUE;
2359         }
2360         else {                                       // it's a colour name
2361             **obj = wxColour(spec);
2362             return TRUE;
2363         }
2364     }
2365     // last chance: 3-tuple of integers is expected
2366     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2367         PyObject* o1 = PySequence_GetItem(source, 0);
2368         PyObject* o2 = PySequence_GetItem(source, 1);
2369         PyObject* o3 = PySequence_GetItem(source, 2);
2370         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2371             Py_DECREF(o1);
2372             Py_DECREF(o2);
2373             Py_DECREF(o3);
2374             goto error;
2375         }
2376         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2377         Py_DECREF(o1);
2378         Py_DECREF(o2);
2379         Py_DECREF(o3);
2380         return TRUE;
2381     }
2382
2383  error:
2384     PyErr_SetString(PyExc_TypeError,
2385                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2386     return FALSE;
2387 }
2388
2389
2390
2391 bool wxPoint2DDouble_helper(PyObject* source, wxPoint2DDouble** obj) {
2392     // If source is an object instance then it may already be the right type
2393     if (PyInstance_Check(source)) {
2394         wxPoint2DDouble* ptr;
2395         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint2DDouble_p"))
2396             goto error;
2397         *obj = ptr;
2398         return TRUE;
2399     }
2400     // otherwise a length-2 sequence of floats is expected
2401     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2402         PyObject* o1 = PySequence_GetItem(source, 0);
2403         PyObject* o2 = PySequence_GetItem(source, 1);
2404         // This should really check for integers, not numbers -- but that would break code.
2405         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2406             Py_DECREF(o1);
2407             Py_DECREF(o2);
2408             goto error;
2409         }
2410         **obj = wxPoint2DDouble(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2411         Py_DECREF(o1);
2412         Py_DECREF(o2);
2413         return TRUE;
2414     }
2415  error:
2416     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2DDouble object.");
2417     return FALSE;
2418 }
2419
2420
2421
2422 //----------------------------------------------------------------------
2423
2424 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2425
2426     PyObject* list = PyList_New(0);
2427     for (size_t i=0; i < arr.GetCount(); i++) {
2428 #if wxUSE_UNICODE
2429         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2430 #else
2431         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2432 #endif
2433         PyList_Append(list, str);
2434         Py_DECREF(str);
2435     }
2436     return list;
2437 }
2438
2439
2440 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2441
2442     PyObject* list = PyList_New(0);
2443     for (size_t i=0; i < arr.GetCount(); i++) {
2444         PyObject* number = PyInt_FromLong(arr[i]);
2445         PyList_Append(list, number);
2446         Py_DECREF(number);
2447     }
2448     return list;
2449 }
2450
2451
2452 //----------------------------------------------------------------------
2453 //----------------------------------------------------------------------
2454
2455
2456
2457