src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/event.cpp
   3 // Purpose:     Event classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/event.h"
  28 #include "wx/eventfilter.h"
  29 #include "wx/evtloop.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/list.h"
  33     #include "wx/log.h"
  34     #include "wx/app.h"
  35     #include "wx/utils.h"
  36     #include "wx/stopwatch.h"
  37     #include "wx/module.h"
  38
  39     #if wxUSE_GUI
  40         #include "wx/window.h"
  41         #include "wx/control.h"
  42         #include "wx/dc.h"
  43         #include "wx/spinbutt.h"
  44         #include "wx/textctrl.h"
  45         #include "wx/validate.h"
  46     #endif // wxUSE_GUI
  47 #endif
  48
  49 #include "wx/thread.h"
  50
  51 #if wxUSE_BASE
  52     #include "wx/scopedptr.h"
  53
  54     wxDECLARE_SCOPED_PTR(wxEvent, wxEventPtr)
  55     wxDEFINE_SCOPED_PTR(wxEvent, wxEventPtr)
  56 #endif // wxUSE_BASE
  57
  58 // ----------------------------------------------------------------------------
  59 // wxWin macros
  60 // ----------------------------------------------------------------------------
  61
  62 #if wxUSE_BASE
  63     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  64     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  65     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxThreadEvent, wxEvent)
  67 #endif // wxUSE_BASE
  68
  69 #if wxUSE_GUI
  70     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  96     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  97     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  98     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  99     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
 100     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
 101     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
 102     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
 103     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
 104     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
 105     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
 106 #endif // wxUSE_GUI
 107
 108 #if wxUSE_BASE
 109
 110 const wxEventTable *wxEvtHandler::GetEventTable() const
 111     { return &wxEvtHandler::sm_eventTable; }
 112
 113 const wxEventTable wxEvtHandler::sm_eventTable =
 114     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 115
 116 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 117     { return wxEvtHandler::sm_eventHashTable; }
 118
 119 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 120
 121 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 122     { wxDECLARE_EVENT_TABLE_TERMINATOR() };
 123
 124
 125 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 126 // leaked, so we need to manually clean up all event tables before checking for
 127 // the memory leaks when using it, however this breaks re-initializing the
 128 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 129 // event tables won't be rebuilt the next time, so disable this by default
 130 #if wxUSE_MEMORY_TRACING
 131
 132 class wxEventTableEntryModule: public wxModule
 133 {
 134 public:
 135     wxEventTableEntryModule() { }
 136     virtual bool OnInit() { return true; }
 137     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 138
 139     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 140 };
 141
 142 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 143
 144 #endif // wxUSE_MEMORY_TRACING
 145
 146 // ----------------------------------------------------------------------------
 147 // global variables
 148 // ----------------------------------------------------------------------------
 149
 150 // common event types are defined here, other event types are defined by the
 151 // components which use them
 152
 153 const wxEventType wxEVT_FIRST = 10000;
 154 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 155 const wxEventType wxEVT_NULL = wxNewEventType();
 156
 157 wxDEFINE_EVENT( wxEVT_IDLE, wxIdleEvent );
 158
 159 // Thread and asynchronous call events
 160 wxDEFINE_EVENT( wxEVT_THREAD, wxThreadEvent );
 161 wxDEFINE_EVENT( wxEVT_ASYNC_METHOD_CALL, wxAsyncMethodCallEvent );
 162
 163 #endif // wxUSE_BASE
 164
 165 #if wxUSE_GUI
 166
 167 wxDEFINE_EVENT( wxEVT_BUTTON, wxCommandEvent );
 168 wxDEFINE_EVENT( wxEVT_CHECKBOX, wxCommandEvent );
 169 wxDEFINE_EVENT( wxEVT_CHOICE, wxCommandEvent );
 170 wxDEFINE_EVENT( wxEVT_LISTBOX, wxCommandEvent );
 171 wxDEFINE_EVENT( wxEVT_LISTBOX_DCLICK, wxCommandEvent );
 172 wxDEFINE_EVENT( wxEVT_CHECKLISTBOX, wxCommandEvent );
 173 wxDEFINE_EVENT( wxEVT_MENU, wxCommandEvent );
 174 wxDEFINE_EVENT( wxEVT_SLIDER, wxCommandEvent );
 175 wxDEFINE_EVENT( wxEVT_RADIOBOX, wxCommandEvent );
 176 wxDEFINE_EVENT( wxEVT_RADIOBUTTON, wxCommandEvent );
 177 wxDEFINE_EVENT( wxEVT_SCROLLBAR, wxCommandEvent );
 178 wxDEFINE_EVENT( wxEVT_VLBOX, wxCommandEvent );
 179 wxDEFINE_EVENT( wxEVT_COMBOBOX, wxCommandEvent );
 180 wxDEFINE_EVENT( wxEVT_TOOL_RCLICKED, wxCommandEvent );
 181 wxDEFINE_EVENT( wxEVT_TOOL_ENTER, wxCommandEvent );
 182 wxDEFINE_EVENT( wxEVT_SPINCTRL, wxCommandEvent );
 183 wxDEFINE_EVENT( wxEVT_SPINCTRLDOUBLE, wxCommandEvent );
 184 wxDEFINE_EVENT( wxEVT_TOOL_DROPDOWN, wxCommandEvent );
 185 wxDEFINE_EVENT( wxEVT_COMBOBOX_DROPDOWN, wxCommandEvent);
 186 wxDEFINE_EVENT( wxEVT_COMBOBOX_CLOSEUP, wxCommandEvent);
 187
 188 // Mouse event types
 189 wxDEFINE_EVENT( wxEVT_LEFT_DOWN, wxMouseEvent );
 190 wxDEFINE_EVENT( wxEVT_LEFT_UP, wxMouseEvent );
 191 wxDEFINE_EVENT( wxEVT_MIDDLE_DOWN, wxMouseEvent );
 192 wxDEFINE_EVENT( wxEVT_MIDDLE_UP, wxMouseEvent );
 193 wxDEFINE_EVENT( wxEVT_RIGHT_DOWN, wxMouseEvent );
 194 wxDEFINE_EVENT( wxEVT_RIGHT_UP, wxMouseEvent );
 195 wxDEFINE_EVENT( wxEVT_MOTION, wxMouseEvent );
 196 wxDEFINE_EVENT( wxEVT_ENTER_WINDOW, wxMouseEvent );
 197 wxDEFINE_EVENT( wxEVT_LEAVE_WINDOW, wxMouseEvent );
 198 wxDEFINE_EVENT( wxEVT_LEFT_DCLICK, wxMouseEvent );
 199 wxDEFINE_EVENT( wxEVT_MIDDLE_DCLICK, wxMouseEvent );
 200 wxDEFINE_EVENT( wxEVT_RIGHT_DCLICK, wxMouseEvent );
 201 wxDEFINE_EVENT( wxEVT_SET_FOCUS, wxFocusEvent );
 202 wxDEFINE_EVENT( wxEVT_KILL_FOCUS, wxFocusEvent );
 203 wxDEFINE_EVENT( wxEVT_CHILD_FOCUS, wxChildFocusEvent );
 204 wxDEFINE_EVENT( wxEVT_MOUSEWHEEL, wxMouseEvent );
 205 wxDEFINE_EVENT( wxEVT_AUX1_DOWN, wxMouseEvent );
 206 wxDEFINE_EVENT( wxEVT_AUX1_UP, wxMouseEvent );
 207 wxDEFINE_EVENT( wxEVT_AUX1_DCLICK, wxMouseEvent );
 208 wxDEFINE_EVENT( wxEVT_AUX2_DOWN, wxMouseEvent );
 209 wxDEFINE_EVENT( wxEVT_AUX2_UP, wxMouseEvent );
 210 wxDEFINE_EVENT( wxEVT_AUX2_DCLICK, wxMouseEvent );
 211
 212 // Character input event type
 213 wxDEFINE_EVENT( wxEVT_CHAR, wxKeyEvent );
 214 wxDEFINE_EVENT( wxEVT_AFTER_CHAR, wxKeyEvent );
 215 wxDEFINE_EVENT( wxEVT_CHAR_HOOK, wxKeyEvent );
 216 wxDEFINE_EVENT( wxEVT_NAVIGATION_KEY, wxNavigationKeyEvent );
 217 wxDEFINE_EVENT( wxEVT_KEY_DOWN, wxKeyEvent );
 218 wxDEFINE_EVENT( wxEVT_KEY_UP, wxKeyEvent );
 219 #if wxUSE_HOTKEY
 220 wxDEFINE_EVENT( wxEVT_HOTKEY, wxKeyEvent );
 221 #endif
 222
 223 // Set cursor event
 224 wxDEFINE_EVENT( wxEVT_SET_CURSOR, wxSetCursorEvent );
 225
 226 // wxScrollbar and wxSlider event identifiers
 227 wxDEFINE_EVENT( wxEVT_SCROLL_TOP, wxScrollEvent );
 228 wxDEFINE_EVENT( wxEVT_SCROLL_BOTTOM, wxScrollEvent );
 229 wxDEFINE_EVENT( wxEVT_SCROLL_LINEUP, wxScrollEvent );
 230 wxDEFINE_EVENT( wxEVT_SCROLL_LINEDOWN, wxScrollEvent );
 231 wxDEFINE_EVENT( wxEVT_SCROLL_PAGEUP, wxScrollEvent );
 232 wxDEFINE_EVENT( wxEVT_SCROLL_PAGEDOWN, wxScrollEvent );
 233 wxDEFINE_EVENT( wxEVT_SCROLL_THUMBTRACK, wxScrollEvent );
 234 wxDEFINE_EVENT( wxEVT_SCROLL_THUMBRELEASE, wxScrollEvent );
 235 wxDEFINE_EVENT( wxEVT_SCROLL_CHANGED, wxScrollEvent );
 236
 237 // Due to a bug in older wx versions, wxSpinEvents were being sent with type of
 238 // wxEVT_SCROLL_LINEUP, wxEVT_SCROLL_LINEDOWN and wxEVT_SCROLL_THUMBTRACK. But
 239 // with the type-safe events in place, these event types are associated with
 240 // wxScrollEvent. To allow handling of spin events, new event types have been
 241 // defined in spinbutt.h/spinnbuttcmn.cpp. To maintain backward compatibility
 242 // the spin event types are being initialized with the scroll event types.
 243
 244 #if wxUSE_SPINBTN
 245
 246 wxDEFINE_EVENT_ALIAS( wxEVT_SPIN_UP,   wxSpinEvent, wxEVT_SCROLL_LINEUP );
 247 wxDEFINE_EVENT_ALIAS( wxEVT_SPIN_DOWN, wxSpinEvent, wxEVT_SCROLL_LINEDOWN );
 248 wxDEFINE_EVENT_ALIAS( wxEVT_SPIN,      wxSpinEvent, wxEVT_SCROLL_THUMBTRACK );
 249
 250 #endif // wxUSE_SPINBTN
 251
 252 // Scroll events from wxWindow
 253 wxDEFINE_EVENT( wxEVT_SCROLLWIN_TOP, wxScrollWinEvent );
 254 wxDEFINE_EVENT( wxEVT_SCROLLWIN_BOTTOM, wxScrollWinEvent );
 255 wxDEFINE_EVENT( wxEVT_SCROLLWIN_LINEUP, wxScrollWinEvent );
 256 wxDEFINE_EVENT( wxEVT_SCROLLWIN_LINEDOWN, wxScrollWinEvent );
 257 wxDEFINE_EVENT( wxEVT_SCROLLWIN_PAGEUP, wxScrollWinEvent );
 258 wxDEFINE_EVENT( wxEVT_SCROLLWIN_PAGEDOWN, wxScrollWinEvent );
 259 wxDEFINE_EVENT( wxEVT_SCROLLWIN_THUMBTRACK, wxScrollWinEvent );
 260 wxDEFINE_EVENT( wxEVT_SCROLLWIN_THUMBRELEASE, wxScrollWinEvent );
 261
 262 // System events
 263 wxDEFINE_EVENT( wxEVT_SIZE, wxSizeEvent );
 264 wxDEFINE_EVENT( wxEVT_SIZING, wxSizeEvent );
 265 wxDEFINE_EVENT( wxEVT_MOVE, wxMoveEvent );
 266 wxDEFINE_EVENT( wxEVT_MOVING, wxMoveEvent );
 267 wxDEFINE_EVENT( wxEVT_MOVE_START, wxMoveEvent );
 268 wxDEFINE_EVENT( wxEVT_MOVE_END, wxMoveEvent );
 269 wxDEFINE_EVENT( wxEVT_CLOSE_WINDOW, wxCloseEvent );
 270 wxDEFINE_EVENT( wxEVT_END_SESSION, wxCloseEvent );
 271 wxDEFINE_EVENT( wxEVT_QUERY_END_SESSION, wxCloseEvent );
 272 wxDEFINE_EVENT( wxEVT_HIBERNATE, wxActivateEvent );
 273 wxDEFINE_EVENT( wxEVT_ACTIVATE_APP, wxActivateEvent );
 274 wxDEFINE_EVENT( wxEVT_ACTIVATE, wxActivateEvent );
 275 wxDEFINE_EVENT( wxEVT_CREATE, wxWindowCreateEvent );
 276 wxDEFINE_EVENT( wxEVT_DESTROY, wxWindowDestroyEvent );
 277 wxDEFINE_EVENT( wxEVT_SHOW, wxShowEvent );
 278 wxDEFINE_EVENT( wxEVT_ICONIZE, wxIconizeEvent );
 279 wxDEFINE_EVENT( wxEVT_MAXIMIZE, wxMaximizeEvent );
 280 wxDEFINE_EVENT( wxEVT_MOUSE_CAPTURE_CHANGED, wxMouseCaptureChangedEvent );
 281 wxDEFINE_EVENT( wxEVT_MOUSE_CAPTURE_LOST, wxMouseCaptureLostEvent );
 282 wxDEFINE_EVENT( wxEVT_PAINT, wxPaintEvent );
 283 wxDEFINE_EVENT( wxEVT_ERASE_BACKGROUND, wxEraseEvent );
 284 wxDEFINE_EVENT( wxEVT_NC_PAINT, wxNcPaintEvent );
 285 wxDEFINE_EVENT( wxEVT_MENU_OPEN, wxMenuEvent );
 286 wxDEFINE_EVENT( wxEVT_MENU_CLOSE, wxMenuEvent );
 287 wxDEFINE_EVENT( wxEVT_MENU_HIGHLIGHT, wxMenuEvent );
 288 wxDEFINE_EVENT( wxEVT_CONTEXT_MENU, wxContextMenuEvent );
 289 wxDEFINE_EVENT( wxEVT_SYS_COLOUR_CHANGED, wxSysColourChangedEvent );
 290 wxDEFINE_EVENT( wxEVT_DISPLAY_CHANGED, wxDisplayChangedEvent );
 291 wxDEFINE_EVENT( wxEVT_QUERY_NEW_PALETTE, wxQueryNewPaletteEvent );
 292 wxDEFINE_EVENT( wxEVT_PALETTE_CHANGED, wxPaletteChangedEvent );
 293 wxDEFINE_EVENT( wxEVT_JOY_BUTTON_DOWN, wxJoystickEvent );
 294 wxDEFINE_EVENT( wxEVT_JOY_BUTTON_UP, wxJoystickEvent );
 295 wxDEFINE_EVENT( wxEVT_JOY_MOVE, wxJoystickEvent );
 296 wxDEFINE_EVENT( wxEVT_JOY_ZMOVE, wxJoystickEvent );
 297 wxDEFINE_EVENT( wxEVT_DROP_FILES, wxDropFilesEvent );
 298 wxDEFINE_EVENT( wxEVT_INIT_DIALOG, wxInitDialogEvent );
 299 wxDEFINE_EVENT( wxEVT_UPDATE_UI, wxUpdateUIEvent );
 300
 301 // Clipboard events
 302 wxDEFINE_EVENT( wxEVT_TEXT_COPY, wxClipboardTextEvent );
 303 wxDEFINE_EVENT( wxEVT_TEXT_CUT, wxClipboardTextEvent );
 304 wxDEFINE_EVENT( wxEVT_TEXT_PASTE, wxClipboardTextEvent );
 305
 306 // Generic command events
 307 // Note: a click is a higher-level event than button down/up
 308 wxDEFINE_EVENT( wxEVT_COMMAND_LEFT_CLICK, wxCommandEvent );
 309 wxDEFINE_EVENT( wxEVT_COMMAND_LEFT_DCLICK, wxCommandEvent );
 310 wxDEFINE_EVENT( wxEVT_COMMAND_RIGHT_CLICK, wxCommandEvent );
 311 wxDEFINE_EVENT( wxEVT_COMMAND_RIGHT_DCLICK, wxCommandEvent );
 312 wxDEFINE_EVENT( wxEVT_COMMAND_SET_FOCUS, wxCommandEvent );
 313 wxDEFINE_EVENT( wxEVT_COMMAND_KILL_FOCUS, wxCommandEvent );
 314 wxDEFINE_EVENT( wxEVT_COMMAND_ENTER, wxCommandEvent );
 315
 316 // Help events
 317 wxDEFINE_EVENT( wxEVT_HELP, wxHelpEvent );
 318 wxDEFINE_EVENT( wxEVT_DETAILED_HELP, wxHelpEvent );
 319
 320 #endif // wxUSE_GUI
 321
 322 #if wxUSE_BASE
 323
 324 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 325
 326 // ============================================================================
 327 // implementation
 328 // ============================================================================
 329
 330 // ----------------------------------------------------------------------------
 331 // event initialization
 332 // ----------------------------------------------------------------------------
 333
 334 int wxNewEventType()
 335 {
 336     // MT-FIXME
 337     static int s_lastUsedEventType = wxEVT_FIRST;
 338
 339     return s_lastUsedEventType++;
 340 }
 341 // ----------------------------------------------------------------------------
 342 // wxEventFunctor
 343 // ----------------------------------------------------------------------------
 344
 345 wxEventFunctor::~wxEventFunctor()
 346 {
 347 }
 348
 349 // ----------------------------------------------------------------------------
 350 // wxEvent
 351 // ----------------------------------------------------------------------------
 352
 353 /*
 354  * General wxWidgets events, covering all interesting things that might happen
 355  * (button clicking, resizing, setting text in widgets, etc.).
 356  *
 357  * For each completely new event type, derive a new event class.
 358  *
 359  */
 360
 361 wxEvent::wxEvent(int theId, wxEventType commandType)
 362 {
 363     m_eventType = commandType;
 364     m_eventObject = NULL;
 365     m_timeStamp = 0;
 366     m_id = theId;
 367     m_skipped = false;
 368     m_callbackUserData = NULL;
 369     m_handlerToProcessOnlyIn = NULL;
 370     m_isCommandEvent = false;
 371     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 372     m_propagatedFrom = NULL;
 373     m_wasProcessed = false;
 374     m_willBeProcessedAgain = false;
 375 }
 376
 377 wxEvent::wxEvent(const wxEvent& src)
 378     : wxObject(src)
 379     , m_eventObject(src.m_eventObject)
 380     , m_eventType(src.m_eventType)
 381     , m_timeStamp(src.m_timeStamp)
 382     , m_id(src.m_id)
 383     , m_callbackUserData(src.m_callbackUserData)
 384     , m_handlerToProcessOnlyIn(NULL)
 385     , m_propagationLevel(src.m_propagationLevel)
 386     , m_propagatedFrom(NULL)
 387     , m_skipped(src.m_skipped)
 388     , m_isCommandEvent(src.m_isCommandEvent)
 389     , m_wasProcessed(false)
 390     , m_willBeProcessedAgain(false)
 391 {
 392 }
 393
 394 wxEvent& wxEvent::operator=(const wxEvent& src)
 395 {
 396     wxObject::operator=(src);
 397
 398     m_eventObject = src.m_eventObject;
 399     m_eventType = src.m_eventType;
 400     m_timeStamp = src.m_timeStamp;
 401     m_id = src.m_id;
 402     m_callbackUserData = src.m_callbackUserData;
 403     m_handlerToProcessOnlyIn = NULL;
 404     m_propagationLevel = src.m_propagationLevel;
 405     m_propagatedFrom = NULL;
 406     m_skipped = src.m_skipped;
 407     m_isCommandEvent = src.m_isCommandEvent;
 408
 409     // don't change m_wasProcessed
 410
 411     // While the original again could be passed to another handler, this one
 412     // isn't going to be processed anywhere else by default.
 413     m_willBeProcessedAgain = false;
 414
 415     return *this;
 416 }
 417
 418 #endif // wxUSE_BASE
 419
 420 #if wxUSE_GUI
 421
 422 // ----------------------------------------------------------------------------
 423 // wxCommandEvent
 424 // ----------------------------------------------------------------------------
 425
 426 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 427               : wxEvent(theId, commandType)
 428 {
 429     m_clientData = NULL;
 430     m_clientObject = NULL;
 431     m_isCommandEvent = true;
 432
 433     // the command events are propagated upwards by default
 434     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 435 }
 436
 437 wxString wxCommandEvent::GetString() const
 438 {
 439     if (m_eventType != wxEVT_TEXT || !m_eventObject)
 440     {
 441         return m_cmdString;
 442     }
 443     else
 444     {
 445 #if wxUSE_TEXTCTRL
 446         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 447         if ( txt )
 448             return txt->GetValue();
 449         else
 450 #endif // wxUSE_TEXTCTRL
 451             return m_cmdString;
 452     }
 453 }
 454
 455 // ----------------------------------------------------------------------------
 456 // wxUpdateUIEvent
 457 // ----------------------------------------------------------------------------
 458
 459 #if wxUSE_LONGLONG
 460 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 461 #endif
 462
 463 long wxUpdateUIEvent::sm_updateInterval = 0;
 464
 465 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 466
 467 // Can we update?
 468 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 469 {
 470     // Don't update if we've switched global updating off
 471     // and this window doesn't support updates.
 472     if (win &&
 473        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 474        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 475         return false;
 476
 477     // Don't update children of the hidden windows: this is useless as any
 478     // change to their state won't be seen by the user anyhow. Notice that this
 479     // argument doesn't apply to the hidden windows (with visible parent)
 480     // themselves as they could be shown by their EVT_UPDATE_UI handler.
 481     if ( win->GetParent() && !win->GetParent()->IsShownOnScreen() )
 482         return false;
 483
 484     if (sm_updateInterval == -1)
 485         return false;
 486
 487     if (sm_updateInterval == 0)
 488         return true;
 489
 490 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 491     wxLongLong now = wxGetLocalTimeMillis();
 492     if (now > (sm_lastUpdate + sm_updateInterval))
 493     {
 494         return true;
 495     }
 496
 497     return false;
 498 #else
 499     // If we don't have wxStopWatch or wxLongLong, we
 500     // should err on the safe side and update now anyway.
 501     return true;
 502 #endif
 503 }
 504
 505 // Reset the update time to provide a delay until the next
 506 // time we should update
 507 void wxUpdateUIEvent::ResetUpdateTime()
 508 {
 509 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 510     if (sm_updateInterval > 0)
 511     {
 512         wxLongLong now = wxGetLocalTimeMillis();
 513         if (now > (sm_lastUpdate + sm_updateInterval))
 514         {
 515             sm_lastUpdate = now;
 516         }
 517     }
 518 #endif
 519 }
 520
 521 // ----------------------------------------------------------------------------
 522 // wxScrollEvent
 523 // ----------------------------------------------------------------------------
 524
 525 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 526                              int id,
 527                              int pos,
 528                              int orient)
 529     : wxCommandEvent(commandType, id)
 530 {
 531     m_extraLong = orient;
 532     m_commandInt = pos;
 533 }
 534
 535 // ----------------------------------------------------------------------------
 536 // wxScrollWinEvent
 537 // ----------------------------------------------------------------------------
 538
 539 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 540                                    int pos,
 541                                    int orient)
 542 {
 543     m_eventType = commandType;
 544     m_extraLong = orient;
 545     m_commandInt = pos;
 546 }
 547
 548 // ----------------------------------------------------------------------------
 549 // wxMouseEvent
 550 // ----------------------------------------------------------------------------
 551
 552 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 553 {
 554     m_eventType = commandType;
 555
 556     m_x = 0;
 557     m_y = 0;
 558
 559     m_leftDown = false;
 560     m_middleDown = false;
 561     m_rightDown = false;
 562     m_aux1Down = false;
 563     m_aux2Down = false;
 564
 565     m_clickCount = -1;
 566
 567     m_wheelAxis = wxMOUSE_WHEEL_VERTICAL;
 568     m_wheelRotation = 0;
 569     m_wheelDelta = 0;
 570     m_linesPerAction = 0;
 571     m_columnsPerAction = 0;
 572 }
 573
 574 void wxMouseEvent::Assign(const wxMouseEvent& event)
 575 {
 576     wxEvent::operator=(event);
 577
 578     // Borland C++ 5.82 doesn't compile an explicit call to an implicitly
 579     // defined operator=() so need to do it this way:
 580     *static_cast<wxMouseState *>(this) = event;
 581
 582     m_x = event.m_x;
 583     m_y = event.m_y;
 584
 585     m_leftDown = event.m_leftDown;
 586     m_middleDown = event.m_middleDown;
 587     m_rightDown = event.m_rightDown;
 588     m_aux1Down = event.m_aux1Down;
 589     m_aux2Down = event.m_aux2Down;
 590
 591     m_wheelRotation = event.m_wheelRotation;
 592     m_wheelDelta = event.m_wheelDelta;
 593     m_linesPerAction = event.m_linesPerAction;
 594     m_columnsPerAction = event.m_columnsPerAction;
 595     m_wheelAxis = event.m_wheelAxis;
 596 }
 597
 598 // return true if was a button dclick event
 599 bool wxMouseEvent::ButtonDClick(int but) const
 600 {
 601     switch (but)
 602     {
 603         default:
 604             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 605             // fall through
 606
 607         case wxMOUSE_BTN_ANY:
 608             return (LeftDClick() || MiddleDClick() || RightDClick() ||
 609                     Aux1DClick() || Aux2DClick());
 610
 611         case wxMOUSE_BTN_LEFT:
 612             return LeftDClick();
 613
 614         case wxMOUSE_BTN_MIDDLE:
 615             return MiddleDClick();
 616
 617         case wxMOUSE_BTN_RIGHT:
 618             return RightDClick();
 619
 620         case wxMOUSE_BTN_AUX1:
 621             return Aux1DClick();
 622
 623         case wxMOUSE_BTN_AUX2:
 624             return Aux2DClick();
 625     }
 626 }
 627
 628 // return true if was a button down event
 629 bool wxMouseEvent::ButtonDown(int but) const
 630 {
 631     switch (but)
 632     {
 633         default:
 634             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 635             // fall through
 636
 637         case wxMOUSE_BTN_ANY:
 638             return (LeftDown() || MiddleDown() || RightDown() ||
 639                     Aux1Down() || Aux2Down());
 640
 641         case wxMOUSE_BTN_LEFT:
 642             return LeftDown();
 643
 644         case wxMOUSE_BTN_MIDDLE:
 645             return MiddleDown();
 646
 647         case wxMOUSE_BTN_RIGHT:
 648             return RightDown();
 649
 650         case wxMOUSE_BTN_AUX1:
 651             return Aux1Down();
 652
 653         case wxMOUSE_BTN_AUX2:
 654             return Aux2Down();
 655     }
 656 }
 657
 658 // return true if was a button up event
 659 bool wxMouseEvent::ButtonUp(int but) const
 660 {
 661     switch (but)
 662     {
 663         default:
 664             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 665             // fall through
 666
 667         case wxMOUSE_BTN_ANY:
 668             return (LeftUp() || MiddleUp() || RightUp() ||
 669                     Aux1Up() || Aux2Up());
 670
 671         case wxMOUSE_BTN_LEFT:
 672             return LeftUp();
 673
 674         case wxMOUSE_BTN_MIDDLE:
 675             return MiddleUp();
 676
 677         case wxMOUSE_BTN_RIGHT:
 678             return RightUp();
 679
 680         case wxMOUSE_BTN_AUX1:
 681             return Aux1Up();
 682
 683         case wxMOUSE_BTN_AUX2:
 684             return Aux2Up();
 685     }
 686 }
 687
 688 // return true if the given button is currently changing state
 689 bool wxMouseEvent::Button(int but) const
 690 {
 691     switch (but)
 692     {
 693         default:
 694             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 695             // fall through
 696
 697         case wxMOUSE_BTN_ANY:
 698             return ButtonUp(wxMOUSE_BTN_ANY) ||
 699                     ButtonDown(wxMOUSE_BTN_ANY) ||
 700                         ButtonDClick(wxMOUSE_BTN_ANY);
 701
 702         case wxMOUSE_BTN_LEFT:
 703             return LeftDown() || LeftUp() || LeftDClick();
 704
 705         case wxMOUSE_BTN_MIDDLE:
 706             return MiddleDown() || MiddleUp() || MiddleDClick();
 707
 708         case wxMOUSE_BTN_RIGHT:
 709             return RightDown() || RightUp() || RightDClick();
 710
 711         case wxMOUSE_BTN_AUX1:
 712            return Aux1Down() || Aux1Up() || Aux1DClick();
 713
 714         case wxMOUSE_BTN_AUX2:
 715            return Aux2Down() || Aux2Up() || Aux2DClick();
 716     }
 717 }
 718
 719 int wxMouseEvent::GetButton() const
 720 {
 721     for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
 722     {
 723         if ( Button(i) )
 724         {
 725             return i;
 726         }
 727     }
 728
 729     return wxMOUSE_BTN_NONE;
 730 }
 731
 732 // Find the logical position of the event given the DC
 733 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 734 {
 735     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 736     return pt;
 737 }
 738
 739 // ----------------------------------------------------------------------------
 740 // wxKeyEvent
 741 // ----------------------------------------------------------------------------
 742
 743 wxKeyEvent::wxKeyEvent(wxEventType type)
 744 {
 745     m_eventType = type;
 746     m_keyCode = WXK_NONE;
 747 #if wxUSE_UNICODE
 748     m_uniChar = WXK_NONE;
 749 #endif
 750
 751     m_x =
 752     m_y = wxDefaultCoord;
 753     m_hasPosition = false;
 754
 755     InitPropagation();
 756 }
 757
 758 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 759           : wxEvent(evt),
 760             wxKeyboardState(evt)
 761 {
 762     DoAssignMembers(evt);
 763
 764     InitPropagation();
 765 }
 766
 767 wxKeyEvent::wxKeyEvent(wxEventType eventType, const wxKeyEvent& evt)
 768           : wxEvent(evt),
 769             wxKeyboardState(evt)
 770 {
 771     DoAssignMembers(evt);
 772
 773     m_eventType = eventType;
 774
 775     InitPropagation();
 776 }
 777
 778 void wxKeyEvent::InitPositionIfNecessary() const
 779 {
 780     if ( m_hasPosition )
 781         return;
 782
 783     // We're const because we're called from const Get[XY]() methods but we
 784     // need to update the "cached" values.
 785     wxKeyEvent& self = const_cast<wxKeyEvent&>(*this);
 786     self.m_hasPosition = true;
 787
 788     // The only position we can possibly associate with the keyboard event on
 789     // the platforms where it doesn't carry it already is the mouse position.
 790     wxGetMousePosition(&self.m_x, &self.m_y);
 791
 792     // If this event is associated with a window, the position should be in its
 793     // client coordinates, but otherwise leave it in screen coordinates as what
 794     // else can we use?
 795     wxWindow* const win = wxDynamicCast(GetEventObject(), wxWindow);
 796     if ( win )
 797         win->ScreenToClient(&self.m_x, &self.m_y);
 798 }
 799
 800 wxCoord wxKeyEvent::GetX() const
 801 {
 802     InitPositionIfNecessary();
 803
 804     return m_x;
 805 }
 806
 807 wxCoord wxKeyEvent::GetY() const
 808 {
 809     InitPositionIfNecessary();
 810
 811     return m_y;
 812 }
 813
 814 bool wxKeyEvent::IsKeyInCategory(int category) const
 815 {
 816     switch ( GetKeyCode() )
 817     {
 818         case WXK_LEFT:
 819         case WXK_RIGHT:
 820         case WXK_UP:
 821         case WXK_DOWN:
 822         case WXK_NUMPAD_LEFT:
 823         case WXK_NUMPAD_RIGHT:
 824         case WXK_NUMPAD_UP:
 825         case WXK_NUMPAD_DOWN:
 826             return (category & WXK_CATEGORY_ARROW) != 0;
 827
 828         case WXK_PAGEDOWN:
 829         case WXK_END:
 830         case WXK_NUMPAD_PAGEUP:
 831         case WXK_NUMPAD_PAGEDOWN:
 832             return (category & WXK_CATEGORY_PAGING) != 0;
 833
 834         case WXK_HOME:
 835         case WXK_PAGEUP:
 836         case WXK_NUMPAD_HOME:
 837         case WXK_NUMPAD_END:
 838             return (category & WXK_CATEGORY_JUMP) != 0;
 839
 840         case WXK_TAB:
 841         case WXK_NUMPAD_TAB:
 842             return (category & WXK_CATEGORY_TAB) != 0;
 843
 844         case WXK_BACK:
 845         case WXK_DELETE:
 846         case WXK_NUMPAD_DELETE:
 847             return (category & WXK_CATEGORY_CUT) != 0;
 848
 849         default:
 850             return false;
 851     }
 852 }
 853
 854 // ----------------------------------------------------------------------------
 855 // wxWindowCreateEvent
 856 // ----------------------------------------------------------------------------
 857
 858 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 859 {
 860     SetEventType(wxEVT_CREATE);
 861     SetEventObject(win);
 862 }
 863
 864 // ----------------------------------------------------------------------------
 865 // wxWindowDestroyEvent
 866 // ----------------------------------------------------------------------------
 867
 868 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 869 {
 870     SetEventType(wxEVT_DESTROY);
 871     SetEventObject(win);
 872 }
 873
 874 // ----------------------------------------------------------------------------
 875 // wxChildFocusEvent
 876 // ----------------------------------------------------------------------------
 877
 878 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 879                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 880 {
 881     SetEventObject(win);
 882 }
 883
 884 // ----------------------------------------------------------------------------
 885 // wxHelpEvent
 886 // ----------------------------------------------------------------------------
 887
 888 /* static */
 889 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 890 {
 891     if ( origin == Origin_Unknown )
 892     {
 893         // assume that the event comes from the help button if it's not from
 894         // keyboard and that pressing F1 always results in the help event
 895         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 896     }
 897
 898     return origin;
 899 }
 900
 901 #endif // wxUSE_GUI
 902
 903
 904 #if wxUSE_BASE
 905
 906 // ----------------------------------------------------------------------------
 907 // wxEventHashTable
 908 // ----------------------------------------------------------------------------
 909
 910 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 911
 912 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 913
 914 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 915                 : m_table(table),
 916                   m_rebuildHash(true)
 917 {
 918     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 919
 920     m_next = sm_first;
 921     if (m_next)
 922         m_next->m_previous = this;
 923     sm_first = this;
 924 }
 925
 926 wxEventHashTable::~wxEventHashTable()
 927 {
 928     if (m_next)
 929         m_next->m_previous = m_previous;
 930     if (m_previous)
 931         m_previous->m_next = m_next;
 932     if (sm_first == this)
 933         sm_first = m_next;
 934
 935     Clear();
 936 }
 937
 938 void wxEventHashTable::Clear()
 939 {
 940     for ( size_t i = 0; i < m_size; i++ )
 941     {
 942         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 943         delete eTTnode;
 944     }
 945
 946     wxDELETEA(m_eventTypeTable);
 947
 948     m_size = 0;
 949 }
 950
 951 #if wxUSE_MEMORY_TRACING
 952
 953 // Clear all tables
 954 void wxEventHashTable::ClearAll()
 955 {
 956     wxEventHashTable* table = sm_first;
 957     while (table)
 958     {
 959         table->Clear();
 960         table = table->m_next;
 961     }
 962 }
 963
 964 #endif // wxUSE_MEMORY_TRACING
 965
 966 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 967 {
 968     if (m_rebuildHash)
 969     {
 970         InitHashTable();
 971         m_rebuildHash = false;
 972     }
 973
 974     if (!m_eventTypeTable)
 975         return false;
 976
 977     // Find all entries for the given event type.
 978     wxEventType eventType = event.GetEventType();
 979     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 980     if (eTTnode && eTTnode->eventType == eventType)
 981     {
 982         // Now start the search for an event handler
 983         // that can handle an event with the given ID.
 984         const wxEventTableEntryPointerArray&
 985             eventEntryTable = eTTnode->eventEntryTable;
 986
 987         const size_t count = eventEntryTable.GetCount();
 988         for (size_t n = 0; n < count; n++)
 989         {
 990             const wxEventTableEntry& entry = *eventEntryTable[n];
 991             if ( wxEvtHandler::ProcessEventIfMatchesId(entry, self, event) )
 992                 return true;
 993         }
 994     }
 995
 996     return false;
 997 }
 998
 999 void wxEventHashTable::InitHashTable()
1000 {
1001     // Loop over the event tables and all its base tables.
1002     const wxEventTable *table = &m_table;
1003     while (table)
1004     {
1005         // Retrieve all valid event handler entries
1006         const wxEventTableEntry *entry = table->entries;
1007         while (entry->m_fn != 0)
1008         {
1009             // Add the event entry in the Hash.
1010             AddEntry(*entry);
1011
1012             entry++;
1013         }
1014
1015         table = table->baseTable;
1016     }
1017
1018     // Let's free some memory.
1019     size_t i;
1020     for(i = 0; i < m_size; i++)
1021     {
1022         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
1023         if (eTTnode)
1024         {
1025             eTTnode->eventEntryTable.Shrink();
1026         }
1027     }
1028 }
1029
1030 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
1031 {
1032     // This might happen 'accidentally' as the app is exiting
1033     if (!m_eventTypeTable)
1034         return;
1035
1036     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
1037     EventTypeTablePointer  eTTnode = *peTTnode;
1038
1039     if (eTTnode)
1040     {
1041         if (eTTnode->eventType != entry.m_eventType)
1042         {
1043             // Resize the table!
1044             GrowEventTypeTable();
1045             // Try again to add it.
1046             AddEntry(entry);
1047             return;
1048         }
1049     }
1050     else
1051     {
1052         eTTnode = new EventTypeTable;
1053         eTTnode->eventType = entry.m_eventType;
1054         *peTTnode = eTTnode;
1055     }
1056
1057     // Fill all hash entries between entry.m_id and entry.m_lastId...
1058     eTTnode->eventEntryTable.Add(&entry);
1059 }
1060
1061 void wxEventHashTable::AllocEventTypeTable(size_t size)
1062 {
1063     m_eventTypeTable = new EventTypeTablePointer[size];
1064     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
1065     m_size = size;
1066 }
1067
1068 void wxEventHashTable::GrowEventTypeTable()
1069 {
1070     size_t oldSize = m_size;
1071     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
1072
1073     // TODO: Search the most optimal grow sequence
1074     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
1075
1076     for ( size_t i = 0; i < oldSize; /* */ )
1077     {
1078         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
1079         if (eTToldNode)
1080         {
1081             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
1082             EventTypeTablePointer  eTTnode = *peTTnode;
1083
1084             // Check for collision, we don't want any.
1085             if (eTTnode)
1086             {
1087                 GrowEventTypeTable();
1088                 continue; // Don't increment the counter,
1089                           // as we still need to add this element.
1090             }
1091             else
1092             {
1093                 // Get the old value and put it in the new table.
1094                 *peTTnode = oldEventTypeTable[i];
1095             }
1096         }
1097
1098         i++;
1099     }
1100
1101     delete[] oldEventTypeTable;
1102 }
1103
1104 // ----------------------------------------------------------------------------
1105 // wxEvtHandler
1106 // ----------------------------------------------------------------------------
1107
1108 wxEvtHandler::wxEvtHandler()
1109 {
1110     m_nextHandler = NULL;
1111     m_previousHandler = NULL;
1112     m_enabled = true;
1113     m_dynamicEvents = NULL;
1114     m_pendingEvents = NULL;
1115
1116     // no client data (yet)
1117     m_clientData = NULL;
1118     m_clientDataType = wxClientData_None;
1119 }
1120
1121 wxEvtHandler::~wxEvtHandler()
1122 {
1123     Unlink();
1124
1125     if (m_dynamicEvents)
1126     {
1127         for ( wxList::iterator it = m_dynamicEvents->begin(),
1128                                end = m_dynamicEvents->end();
1129               it != end;
1130               ++it )
1131         {
1132             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1133
1134             // Remove ourselves from sink destructor notifications
1135             // (this has usually been done, in wxTrackable destructor)
1136             wxEvtHandler *eventSink = entry->m_fn->GetEvtHandler();
1137             if ( eventSink )
1138             {
1139                 wxEventConnectionRef * const
1140                     evtConnRef = FindRefInTrackerList(eventSink);
1141                 if ( evtConnRef )
1142                 {
1143                     eventSink->RemoveNode(evtConnRef);
1144                     delete evtConnRef;
1145                 }
1146             }
1147
1148             delete entry->m_callbackUserData;
1149             delete entry;
1150         }
1151         delete m_dynamicEvents;
1152     }
1153
1154     // Remove us from the list of the pending events if necessary.
1155     if (wxTheApp)
1156         wxTheApp->RemovePendingEventHandler(this);
1157
1158     DeletePendingEvents();
1159
1160     // we only delete object data, not untyped
1161     if ( m_clientDataType == wxClientData_Object )
1162         delete m_clientObject;
1163 }
1164
1165 void wxEvtHandler::Unlink()
1166 {
1167     // this event handler must take itself out of the chain of handlers:
1168
1169     if (m_previousHandler)
1170         m_previousHandler->SetNextHandler(m_nextHandler);
1171
1172     if (m_nextHandler)
1173         m_nextHandler->SetPreviousHandler(m_previousHandler);
1174
1175     m_nextHandler = NULL;
1176     m_previousHandler = NULL;
1177 }
1178
1179 bool wxEvtHandler::IsUnlinked() const
1180 {
1181     return m_previousHandler == NULL &&
1182            m_nextHandler == NULL;
1183 }
1184
1185 wxEventFilter* wxEvtHandler::ms_filterList = NULL;
1186
1187 /* static */ void wxEvtHandler::AddFilter(wxEventFilter* filter)
1188 {
1189     wxCHECK_RET( filter, "NULL filter" );
1190
1191     filter->m_next = ms_filterList;
1192     ms_filterList = filter;
1193 }
1194
1195 /* static */ void wxEvtHandler::RemoveFilter(wxEventFilter* filter)
1196 {
1197     wxEventFilter* prev = NULL;
1198     for ( wxEventFilter* f = ms_filterList; f; f = f->m_next )
1199     {
1200         if ( f == filter )
1201         {
1202             // Set the previous list element or the list head to the next
1203             // element.
1204             if ( prev )
1205                 prev->m_next = f->m_next;
1206             else
1207                 ms_filterList = f->m_next;
1208
1209             // Also reset the next pointer in the filter itself just to avoid
1210             // having possibly dangling pointers, even though it's not strictly
1211             // necessary.
1212             f->m_next = NULL;
1213
1214             // Skip the assert below.
1215             return;
1216         }
1217
1218         prev = f;
1219     }
1220
1221     wxFAIL_MSG( "Filter not found" );
1222 }
1223
1224 #if wxUSE_THREADS
1225
1226 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1227 {
1228     // check that we are really in a child thread
1229     wxASSERT_MSG( !wxThread::IsMain(),
1230                   wxT("use ProcessEvent() in main thread") );
1231
1232     AddPendingEvent(event);
1233
1234     return true;
1235 }
1236
1237 #endif // wxUSE_THREADS
1238
1239 void wxEvtHandler::QueueEvent(wxEvent *event)
1240 {
1241     wxCHECK_RET( event, "NULL event can't be posted" );
1242
1243     if (!wxTheApp)
1244     {
1245         // we need an event loop which manages the list of event handlers with
1246         // pending events... cannot proceed without it!
1247         wxLogDebug("No application object! Cannot queue this event!");
1248
1249         // anyway delete the given event to avoid memory leaks
1250         delete event;
1251
1252         return;
1253     }
1254
1255     // 1) Add this event to our list of pending events
1256     wxENTER_CRIT_SECT( m_pendingEventsLock );
1257
1258     if ( !m_pendingEvents )
1259         m_pendingEvents = new wxList;
1260
1261     m_pendingEvents->Append(event);
1262
1263     // 2) Add this event handler to list of event handlers that
1264     //    have pending events.
1265
1266     wxTheApp->AppendPendingEventHandler(this);
1267
1268     // only release m_pendingEventsLock now because otherwise there is a race
1269     // condition as described in the ticket #9093: we could process the event
1270     // just added to m_pendingEvents in our ProcessPendingEvents() below before
1271     // we had time to append this pointer to wxHandlersWithPendingEvents list; thus
1272     // breaking the invariant that a handler should be in the list iff it has
1273     // any pending events to process
1274     wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1275
1276     // 3) Inform the system that new pending events are somewhere,
1277     //    and that these should be processed in idle time.
1278     wxWakeUpIdle();
1279 }
1280
1281 void wxEvtHandler::DeletePendingEvents()
1282 {
1283     if (m_pendingEvents)
1284         m_pendingEvents->DeleteContents(true);
1285     wxDELETE(m_pendingEvents);
1286 }
1287
1288 void wxEvtHandler::ProcessPendingEvents()
1289 {
1290     if (!wxTheApp)
1291     {
1292         // we need an event loop which manages the list of event handlers with
1293         // pending events... cannot proceed without it!
1294         wxLogDebug("No application object! Cannot process pending events!");
1295         return;
1296     }
1297
1298     // we need to process only a single pending event in this call because
1299     // each call to ProcessEvent() could result in the destruction of this
1300     // same event handler (see the comment at the end of this function)
1301
1302     wxENTER_CRIT_SECT( m_pendingEventsLock );
1303
1304     // this method is only called by wxApp if this handler does have
1305     // pending events
1306     wxCHECK_RET( m_pendingEvents && !m_pendingEvents->IsEmpty(),
1307                  "should have pending events if called" );
1308
1309     wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1310     wxEvent* pEvent = static_cast<wxEvent *>(node->GetData());
1311
1312     // find the first event which can be processed now:
1313     wxEventLoopBase* evtLoop = wxEventLoopBase::GetActive();
1314     if (evtLoop && evtLoop->IsYielding())
1315     {
1316         while (node && pEvent && !evtLoop->IsEventAllowedInsideYield(pEvent->GetEventCategory()))
1317         {
1318             node = node->GetNext();
1319             pEvent = node ? static_cast<wxEvent *>(node->GetData()) : NULL;
1320         }
1321
1322         if (!node)
1323         {
1324             // all our events are NOT processable now... signal this:
1325             wxTheApp->DelayPendingEventHandler(this);
1326
1327             // see the comment at the beginning of evtloop.h header for the
1328             // logic behind YieldFor() and behind DelayPendingEventHandler()
1329
1330             wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1331
1332             return;
1333         }
1334     }
1335
1336     wxEventPtr event(pEvent);
1337
1338     // it's important we remove event from list before processing it, else a
1339     // nested event loop, for example from a modal dialog, might process the
1340     // same event again.
1341     m_pendingEvents->Erase(node);
1342
1343     if ( m_pendingEvents->IsEmpty() )
1344     {
1345         // if there are no more pending events left, we don't need to
1346         // stay in this list
1347         wxTheApp->RemovePendingEventHandler(this);
1348     }
1349
1350     wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1351
1352     ProcessEvent(*event);
1353
1354     // careful: this object could have been deleted by the event handler
1355     // executed by the above ProcessEvent() call, so we can't access any fields
1356     // of this object any more
1357 }
1358
1359 /* static */
1360 bool wxEvtHandler::ProcessEventIfMatchesId(const wxEventTableEntryBase& entry,
1361                                            wxEvtHandler *handler,
1362                                            wxEvent& event)
1363 {
1364     int tableId1 = entry.m_id,
1365         tableId2 = entry.m_lastId;
1366
1367     // match only if the event type is the same and the id is either -1 in
1368     // the event table (meaning "any") or the event id matches the id
1369     // specified in the event table either exactly or by falling into
1370     // range between first and last
1371     if ((tableId1 == wxID_ANY) ||
1372         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1373         (tableId2 != wxID_ANY &&
1374          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1375     {
1376         event.Skip(false);
1377         event.m_callbackUserData = entry.m_callbackUserData;
1378
1379 #if wxUSE_EXCEPTIONS
1380         if ( wxTheApp )
1381         {
1382             // call the handler via wxApp method which allows the user to catch
1383             // any exceptions which may be thrown by any handler in the program
1384             // in one place
1385             wxTheApp->CallEventHandler(handler, *entry.m_fn, event);
1386         }
1387         else
1388 #endif // wxUSE_EXCEPTIONS
1389         {
1390             (*entry.m_fn)(handler, event);
1391         }
1392
1393         if (!event.GetSkipped())
1394             return true;
1395     }
1396
1397     return false;
1398 }
1399
1400 bool wxEvtHandler::DoTryApp(wxEvent& event)
1401 {
1402     if ( wxTheApp && (this != wxTheApp) )
1403     {
1404         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1405         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1406         // processed appropriately via SearchEventTable.
1407         if ( event.GetEventType() != wxEVT_IDLE )
1408         {
1409             if ( wxTheApp->ProcessEvent(event) )
1410                 return true;
1411         }
1412     }
1413
1414     return false;
1415 }
1416
1417 bool wxEvtHandler::TryBefore(wxEvent& event)
1418 {
1419 #if WXWIN_COMPATIBILITY_2_8
1420     // call the old virtual function to keep the code overriding it working
1421     return TryValidator(event);
1422 #else
1423     wxUnusedVar(event);
1424     return false;
1425 #endif
1426 }
1427
1428 bool wxEvtHandler::TryAfter(wxEvent& event)
1429 {
1430     // We only want to pass the window to the application object once even if
1431     // there are several chained handlers. Ensure that this is what happens by
1432     // only calling DoTryApp() if there is no next handler (which would do it).
1433     //
1434     // Notice that, unlike simply calling TryAfter() on the last handler in the
1435     // chain only from ProcessEvent(), this also works with wxWindow object in
1436     // the middle of the chain: its overridden TryAfter() will still be called
1437     // and propagate the event upwards the window hierarchy even if it's not
1438     // the last one in the chain (which, admittedly, shouldn't happen often).
1439     if ( GetNextHandler() )
1440         return GetNextHandler()->TryAfter(event);
1441
1442     // If this event is going to be processed in another handler next, don't
1443     // pass it to wxTheApp now, it will be done from TryAfter() of this other
1444     // handler.
1445     if ( event.WillBeProcessedAgain() )
1446         return false;
1447
1448 #if WXWIN_COMPATIBILITY_2_8
1449     // as above, call the old virtual function for compatibility
1450     return TryParent(event);
1451 #else
1452     return DoTryApp(event);
1453 #endif
1454 }
1455
1456 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1457 {
1458     // The very first thing we do is to allow any registered filters to hook
1459     // into event processing in order to globally pre-process all events.
1460     //
1461     // Note that we should only do it if we're the first event handler called
1462     // to avoid calling FilterEvent() multiple times as the event goes through
1463     // the event handler chain and possibly upwards the window hierarchy.
1464     if ( !event.WasProcessed() )
1465     {
1466         for ( wxEventFilter* f = ms_filterList; f; f = f->m_next )
1467         {
1468             int rc = f->FilterEvent(event);
1469             if ( rc != wxEventFilter::Event_Skip )
1470             {
1471                 wxASSERT_MSG( rc == wxEventFilter::Event_Ignore ||
1472                                 rc == wxEventFilter::Event_Processed,
1473                               "unexpected FilterEvent() return value" );
1474
1475                 return rc != wxEventFilter::Event_Ignore;
1476             }
1477             //else: proceed normally
1478         }
1479     }
1480
1481     // Short circuit the event processing logic if we're requested to process
1482     // this event in this handler only, see DoTryChain() for more details.
1483     if ( event.ShouldProcessOnlyIn(this) )
1484         return TryBeforeAndHere(event);
1485
1486
1487     // Try to process the event in this handler itself.
1488     if ( ProcessEventLocally(event) )
1489     {
1490         // It is possible that DoTryChain() called from ProcessEventLocally()
1491         // returned true but the event was not really processed: this happens
1492         // if a custom handler ignores the request to process the event in this
1493         // handler only and in this case we should skip the post processing
1494         // done in TryAfter() but still return the correct value ourselves to
1495         // indicate whether we did or did not find a handler for this event.
1496         return !event.GetSkipped();
1497     }
1498
1499     // If we still didn't find a handler, propagate the event upwards the
1500     // window chain and/or to the application object.
1501     if ( TryAfter(event) )
1502         return true;
1503
1504
1505     // No handler found anywhere, bail out.
1506     return false;
1507 }
1508
1509 bool wxEvtHandler::ProcessEventLocally(wxEvent& event)
1510 {
1511     // Try the hooks which should be called before our own handlers and this
1512     // handler itself first. Notice that we should not call ProcessEvent() on
1513     // this one as we're already called from it, which explains why we do it
1514     // here and not in DoTryChain()
1515     return TryBeforeAndHere(event) || DoTryChain(event);
1516 }
1517
1518 bool wxEvtHandler::DoTryChain(wxEvent& event)
1519 {
1520     for ( wxEvtHandler *h = GetNextHandler(); h; h = h->GetNextHandler() )
1521     {
1522         // We need to process this event at the level of this handler only
1523         // right now, the pre-/post-processing was either already done by
1524         // ProcessEvent() from which we were called or will be done by it when
1525         // we return.
1526         //
1527         // However we must call ProcessEvent() and not TryHereOnly() because the
1528         // existing code (including some in wxWidgets itself) expects the
1529         // overridden ProcessEvent() in its custom event handlers pushed on a
1530         // window to be called.
1531         //
1532         // So we must call ProcessEvent() but it must not do what it usually
1533         // does. To resolve this paradox we set up a special flag inside the
1534         // object itself to let ProcessEvent() know that it shouldn't do any
1535         // pre/post-processing for this event if it gets it. Note that this
1536         // only applies to this handler, if the event is passed to another one
1537         // by explicitly calling its ProcessEvent(), pre/post-processing should
1538         // be done as usual.
1539         //
1540         // Final complication is that if the implementation of ProcessEvent()
1541         // called wxEvent::DidntHonourProcessOnlyIn() (as the gross hack that
1542         // is wxScrollHelperEvtHandler::ProcessEvent() does) and ignored our
1543         // request to process event in this handler only, we have to compensate
1544         // for it by not processing the event further because this was already
1545         // done by that rogue event handler.
1546         wxEventProcessInHandlerOnly processInHandlerOnly(event, h);
1547         if ( h->ProcessEvent(event) )
1548         {
1549             // Make sure "skipped" flag is not set as the event was really
1550             // processed in this case. Normally it shouldn't be set anyhow but
1551             // make sure just in case the user code does something strange.
1552             event.Skip(false);
1553
1554             return true;
1555         }
1556
1557         if ( !event.ShouldProcessOnlyIn(h) )
1558         {
1559             // Still return true to indicate that no further processing should
1560             // be undertaken but ensure that "skipped" flag is set so that the
1561             // caller knows that the event was not really processed.
1562             event.Skip();
1563
1564             return true;
1565         }
1566     }
1567
1568     return false;
1569 }
1570
1571 bool wxEvtHandler::TryHereOnly(wxEvent& event)
1572 {
1573     // If the event handler is disabled it doesn't process any events
1574     if ( !GetEvtHandlerEnabled() )
1575         return false;
1576
1577     // Handle per-instance dynamic event tables first
1578     if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1579         return true;
1580
1581     // Then static per-class event tables
1582     if ( GetEventHashTable().HandleEvent(event, this) )
1583         return true;
1584
1585 #ifdef wxHAS_CALL_AFTER
1586     // There is an implicit entry for async method calls processing in every
1587     // event handler:
1588     if ( event.GetEventType() == wxEVT_ASYNC_METHOD_CALL &&
1589             event.GetEventObject() == this )
1590     {
1591         static_cast<wxAsyncMethodCallEvent&>(event).Execute();
1592         return true;
1593     }
1594 #endif // wxHAS_CALL_AFTER
1595
1596     // We don't have a handler for this event.
1597     return false;
1598 }
1599
1600 bool wxEvtHandler::SafelyProcessEvent(wxEvent& event)
1601 {
1602 #if wxUSE_EXCEPTIONS
1603     try
1604     {
1605 #endif
1606         return ProcessEvent(event);
1607 #if wxUSE_EXCEPTIONS
1608     }
1609     catch ( ... )
1610     {
1611         // notice that we do it in 2 steps to avoid warnings about possibly
1612         // uninitialized loop variable from some versions of g++ which are not
1613         // smart enough to figure out that GetActive() doesn't throw and so
1614         // that loop will always be initialized
1615         wxEventLoopBase *loop = NULL;
1616         try
1617         {
1618             loop = wxEventLoopBase::GetActive();
1619
1620             if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() )
1621             {
1622                 if ( loop )
1623                     loop->Exit();
1624             }
1625             //else: continue running current event loop
1626
1627             return false;
1628         }
1629         catch ( ... )
1630         {
1631             // OnExceptionInMainLoop() threw, possibly rethrowing the same
1632             // exception again: very good, but we still need Exit() to
1633             // be called
1634             if ( loop )
1635                 loop->Exit();
1636             throw;
1637         }
1638     }
1639 #endif // wxUSE_EXCEPTIONS
1640 }
1641
1642 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1643 {
1644     const wxEventType eventType = event.GetEventType();
1645     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1646     {
1647         const wxEventTableEntry& entry = table.entries[i];
1648         if ( eventType == entry.m_eventType )
1649         {
1650             if ( ProcessEventIfMatchesId(entry, this, event) )
1651                 return true;
1652         }
1653     }
1654
1655     return false;
1656 }
1657
1658 void wxEvtHandler::DoBind(int id,
1659                           int lastId,
1660                           wxEventType eventType,
1661                           wxEventFunctor *func,
1662                           wxObject *userData)
1663 {
1664     wxDynamicEventTableEntry *entry =
1665         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
1666
1667     if (!m_dynamicEvents)
1668         m_dynamicEvents = new wxList;
1669
1670     // Insert at the front of the list so most recent additions are found first
1671     m_dynamicEvents->Insert( (wxObject*) entry );
1672
1673     // Make sure we get to know when a sink is destroyed
1674     wxEvtHandler *eventSink = func->GetEvtHandler();
1675     if ( eventSink && eventSink != this )
1676     {
1677         wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1678         if ( evtConnRef )
1679             evtConnRef->IncRef( );
1680         else
1681             new wxEventConnectionRef(this, eventSink);
1682     }
1683 }
1684
1685 bool
1686 wxEvtHandler::DoUnbind(int id,
1687                        int lastId,
1688                        wxEventType eventType,
1689                        const wxEventFunctor& func,
1690                        wxObject *userData)
1691 {
1692     if (!m_dynamicEvents)
1693         return false;
1694
1695     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1696     while (node)
1697     {
1698         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1699
1700         if ((entry->m_id == id) &&
1701             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1702             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1703             entry->m_fn->IsMatching(func) &&
1704             ((entry->m_callbackUserData == userData) || !userData))
1705         {
1706             // Remove connection from tracker node (wxEventConnectionRef)
1707             wxEvtHandler *eventSink = entry->m_fn->GetEvtHandler();
1708             if ( eventSink && eventSink != this )
1709             {
1710                 wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1711                 if ( evtConnRef )
1712                     evtConnRef->DecRef();
1713             }
1714
1715             delete entry->m_callbackUserData;
1716             m_dynamicEvents->Erase( node );
1717             delete entry;
1718             return true;
1719         }
1720         node = node->GetNext();
1721     }
1722     return false;
1723 }
1724
1725 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1726 {
1727     wxCHECK_MSG( m_dynamicEvents, false,
1728                  wxT("caller should check that we have dynamic events") );
1729
1730     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1731     while (node)
1732     {
1733         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1734
1735         // get next node before (maybe) calling the event handler as it could
1736         // call Disconnect() invalidating the current node
1737         node = node->GetNext();
1738
1739         if ( event.GetEventType() == entry->m_eventType )
1740         {
1741             wxEvtHandler *handler = entry->m_fn->GetEvtHandler();
1742             if ( !handler )
1743                handler = this;
1744             if ( ProcessEventIfMatchesId(*entry, handler, event) )
1745                 return true;
1746         }
1747     }
1748
1749     return false;
1750 }
1751
1752 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1753 {
1754     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1755                   wxT("can't have both object and void client data") );
1756
1757     if ( m_clientObject )
1758         delete m_clientObject;
1759
1760     m_clientObject = data;
1761     m_clientDataType = wxClientData_Object;
1762 }
1763
1764 wxClientData *wxEvtHandler::DoGetClientObject() const
1765 {
1766     // it's not an error to call GetClientObject() on a window which doesn't
1767     // have client data at all - NULL will be returned
1768     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1769                   wxT("this window doesn't have object client data") );
1770
1771     return m_clientObject;
1772 }
1773
1774 void wxEvtHandler::DoSetClientData( void *data )
1775 {
1776     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1777                   wxT("can't have both object and void client data") );
1778
1779     m_clientData = data;
1780     m_clientDataType = wxClientData_Void;
1781 }
1782
1783 void *wxEvtHandler::DoGetClientData() const
1784 {
1785     // it's not an error to call GetClientData() on a window which doesn't have
1786     // client data at all - NULL will be returned
1787     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1788                   wxT("this window doesn't have void client data") );
1789
1790     return m_clientData;
1791 }
1792
1793 // A helper to find an wxEventConnectionRef object
1794 wxEventConnectionRef *
1795 wxEvtHandler::FindRefInTrackerList(wxEvtHandler *eventSink)
1796 {
1797     for ( wxTrackerNode *node = eventSink->GetFirst(); node; node = node->m_nxt )
1798     {
1799         // we only want wxEventConnectionRef nodes here
1800         wxEventConnectionRef *evtConnRef = node->ToEventConnection();
1801         if ( evtConnRef && evtConnRef->m_src == this )
1802         {
1803             wxASSERT( evtConnRef->m_sink==eventSink );
1804             return evtConnRef;
1805         }
1806     }
1807
1808     return NULL;
1809 }
1810
1811 void wxEvtHandler::OnSinkDestroyed( wxEvtHandler *sink )
1812 {
1813     wxASSERT(m_dynamicEvents);
1814
1815     // remove all connections with this sink
1816     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(), node_nxt;
1817     while (node)
1818     {
1819         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1820         node_nxt = node->GetNext();
1821
1822         if ( entry->m_fn->GetEvtHandler() == sink )
1823         {
1824             delete entry->m_callbackUserData;
1825             m_dynamicEvents->Erase( node );
1826             delete entry;
1827         }
1828         node = node_nxt;
1829     }
1830 }
1831
1832 #endif // wxUSE_BASE
1833
1834 #if wxUSE_GUI
1835
1836 // Find a window with the focus, that is also a descendant of the given window.
1837 // This is used to determine the window to initially send commands to.
1838 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1839 {
1840     // Process events starting with the window with the focus, if any.
1841     wxWindow* focusWin = wxWindow::FindFocus();
1842     wxWindow* win = focusWin;
1843
1844     // Check if this is a descendant of this frame.
1845     // If not, win will be set to NULL.
1846     while (win)
1847     {
1848         if (win == ancestor)
1849             break;
1850         else
1851             win = win->GetParent();
1852     }
1853     if (win == NULL)
1854         focusWin = NULL;
1855
1856     return focusWin;
1857 }
1858
1859 // ----------------------------------------------------------------------------
1860 // wxEventBlocker
1861 // ----------------------------------------------------------------------------
1862
1863 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1864 {
1865     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1866
1867     m_window = win;
1868
1869     Block(type);
1870     m_window->PushEventHandler(this);
1871 }
1872
1873 wxEventBlocker::~wxEventBlocker()
1874 {
1875     wxEvtHandler *popped = m_window->PopEventHandler(false);
1876     wxCHECK_RET(popped == this,
1877         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1878 }
1879
1880 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1881 {
1882     // should this event be blocked?
1883     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1884     {
1885         wxEventType t = (wxEventType)m_eventsToBlock[i];
1886         if ( t == wxEVT_ANY || t == event.GetEventType() )
1887             return true;   // yes, it should: mark this event as processed
1888     }
1889
1890     return false;
1891 }
1892
1893 #endif // wxUSE_GUI
1894