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