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
  29 #ifndef WX_PRECOMP
  30     #include "wx/list.h"
  31     #include "wx/app.h"
  32     #include "wx/utils.h"
  33
  34     #if wxUSE_GUI
  35         #include "wx/control.h"
  36         #include "wx/dc.h"
  37         #include "wx/textctrl.h"
  38         #include "wx/validate.h"
  39     #endif // wxUSE_GUI
  40 #endif
  41
  42 #include "wx/module.h"
  43
  44 #if wxUSE_GUI && wxUSE_STOPWATCH
  45     #include "wx/stopwatch.h"
  46 #endif // wxUSE_GUI && wxUSE_STOPWATCH
  47
  48 // ----------------------------------------------------------------------------
  49 // wxWin macros
  50 // ----------------------------------------------------------------------------
  51
  52 #if wxUSE_BASE
  53     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  54     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  55 #endif // wxUSE_BASE
  56
  57 #if wxUSE_GUI
  58     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  59     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  94 #endif // wxUSE_GUI
  95
  96 #if wxUSE_BASE
  97
  98 const wxEventTable *wxEvtHandler::GetEventTable() const
  99     { return &wxEvtHandler::sm_eventTable; }
 100
 101 const wxEventTable wxEvtHandler::sm_eventTable =
 102     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 103
 104 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 105     { return wxEvtHandler::sm_eventHashTable; }
 106
 107 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 108
 109 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 110     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 111
 112
 113 #ifdef __WXDEBUG__
 114 // Clear up event hash table contents or we can get problems
 115 // when C++ is cleaning up the static object
 116 class wxEventTableEntryModule: public wxModule
 117 {
 118 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 119 public:
 120     wxEventTableEntryModule() {}
 121     bool OnInit() { return true; }
 122     void OnExit()
 123     {
 124         wxEventHashTable::ClearAll();
 125     }
 126 };
 127 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 128 #endif
 129
 130 // ----------------------------------------------------------------------------
 131 // global variables
 132 // ----------------------------------------------------------------------------
 133
 134 // To put pending event handlers
 135 wxList *wxPendingEvents = (wxList *)NULL;
 136
 137 #if wxUSE_THREADS
 138     // protects wxPendingEvents list
 139     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 140 #endif
 141
 142 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 143
 144 // common event types are defined here, other event types are defined by the
 145 // components which use them
 146
 147 const wxEventType wxEVT_FIRST = 10000;
 148 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 149
 150 DEFINE_EVENT_TYPE(wxEVT_NULL)
 151 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 152 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 153
 154 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 155
 156 #endif // wxUSE_BASE
 157
 158 #if wxUSE_GUI
 159
 160 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 161
 162 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 163 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 178
 179 // Sockets and timers send events, too
 180 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 181
 182 // Mouse event types
 183 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 184 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 185 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 186 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 187 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 188 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 189 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 190 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 191 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 192 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 193 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 194 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 195 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 196 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 197 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 198 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 199
 200 // Non-client mouse events
 201 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 202 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 203 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 204 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 205 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 206 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 207 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 208 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 209 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 210 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 211 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 213
 214 // Character input event type
 215 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 216 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 217 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 218 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 219 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 220 #if wxUSE_HOTKEY
 221 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 222 #endif
 223
 224 // Set cursor event
 225 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 226
 227 // wxScrollbar and wxSlider event identifiers
 228 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 229 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 230 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 231 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 232 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 233 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 234 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 235 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 237
 238 // Scroll events from wxWindow
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 247
 248 // System events
 249 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 250 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 251 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 252 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 253 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 254 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 255 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 256 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 257 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 258 DEFINE_EVENT_TYPE(wxEVT_POWER)
 259 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 260 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 261 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 262 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 263 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 264 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 265 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 266 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 267 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 268 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 269 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 270 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 271 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 272 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 273 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 274 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 275 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 276 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 277 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 278 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 279 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 280 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 281 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 282 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 283 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 284 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 285 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 286 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 287 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 288 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 289
 290 // Clipboard events
 291 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 292 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 293 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 294
 295 // Generic command events
 296 // Note: a click is a higher-level event than button down/up
 297 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 298 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 299 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 304
 305 // Help events
 306 DEFINE_EVENT_TYPE(wxEVT_HELP)
 307 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 308
 309 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 310
 311 #endif // wxUSE_GUI
 312
 313 #if wxUSE_BASE
 314
 315 // ============================================================================
 316 // implementation
 317 // ============================================================================
 318
 319 // ----------------------------------------------------------------------------
 320 // event initialization
 321 // ----------------------------------------------------------------------------
 322
 323 int wxNewEventType()
 324 {
 325     // MT-FIXME
 326     static int s_lastUsedEventType = wxEVT_FIRST;
 327
 328     return s_lastUsedEventType++;
 329 }
 330
 331 // ----------------------------------------------------------------------------
 332 // wxEvent
 333 // ----------------------------------------------------------------------------
 334
 335 /*
 336  * General wxWidgets events, covering
 337  * all interesting things that might happen (button clicking, resizing,
 338  * setting text in widgets, etc.).
 339  *
 340  * For each completely new event type, derive a new event class.
 341  *
 342  */
 343
 344 wxEvent::wxEvent(int theId, wxEventType commandType )
 345 {
 346     m_eventType = commandType;
 347     m_eventObject = (wxObject *) NULL;
 348     m_timeStamp = 0;
 349     m_id = theId;
 350     m_skipped = false;
 351     m_callbackUserData = (wxObject *) NULL;
 352     m_isCommandEvent = false;
 353     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 354 }
 355
 356 wxEvent::wxEvent(const wxEvent &src)
 357     : wxObject()
 358     , m_eventObject(src.m_eventObject)
 359     , m_eventType(src.m_eventType)
 360     , m_timeStamp(src.m_timeStamp)
 361     , m_id(src.m_id)
 362     , m_callbackUserData(src.m_callbackUserData)
 363     , m_propagationLevel(src.m_propagationLevel)
 364     , m_skipped(src.m_skipped)
 365     , m_isCommandEvent(src.m_isCommandEvent)
 366 {
 367 }
 368
 369 #endif // wxUSE_BASE
 370
 371 #if wxUSE_GUI
 372
 373 /*
 374  * Command events
 375  *
 376  */
 377
 378 #ifdef __VISUALC__
 379     // 'this' : used in base member initializer list (for m_commandString)
 380     #pragma warning(disable:4355)
 381 #endif
 382
 383 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 384               : wxEvent(theId, commandType)
 385 #if WXWIN_COMPATIBILITY_2_4
 386               , m_commandString(this)
 387 #endif
 388 {
 389     m_clientData = (char *) NULL;
 390     m_clientObject = (wxClientData *) NULL;
 391     m_extraLong = 0;
 392     m_commandInt = 0;
 393     m_isCommandEvent = true;
 394
 395     // the command events are propagated upwards by default
 396     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 397 }
 398
 399 #ifdef __VISUALC__
 400     #pragma warning(default:4355)
 401 #endif
 402
 403 wxString wxCommandEvent::GetString() const
 404 {
 405     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 406         return m_cmdString;
 407     else
 408     {
 409 #if wxUSE_TEXTCTRL
 410         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 411         if(txt)
 412             return txt->GetValue();
 413         else
 414 #endif // wxUSE_TEXTCTRL
 415             return m_cmdString;
 416     }
 417 }
 418
 419 /*
 420  * UI update events
 421  */
 422
 423 #if wxUSE_LONGLONG
 424 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 425 #endif
 426
 427 long wxUpdateUIEvent::sm_updateInterval = 0;
 428
 429 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 430
 431 // Can we update?
 432 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 433 {
 434     // Don't update if we've switched global updating off
 435     // and this window doesn't support updates.
 436     if (win &&
 437        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 438        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 439         return false;
 440
 441     if (sm_updateInterval == -1)
 442         return false;
 443
 444     if (sm_updateInterval == 0)
 445         return true;
 446
 447 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 448     wxLongLong now = wxGetLocalTimeMillis();
 449     if (now > (sm_lastUpdate + sm_updateInterval))
 450     {
 451         return true;
 452     }
 453
 454     return false;
 455 #else
 456     // If we don't have wxStopWatch or wxLongLong, we
 457     // should err on the safe side and update now anyway.
 458     return true;
 459 #endif
 460 }
 461
 462 // Reset the update time to provide a delay until the next
 463 // time we should update
 464 void wxUpdateUIEvent::ResetUpdateTime()
 465 {
 466 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 467     if (sm_updateInterval > 0)
 468     {
 469         wxLongLong now = wxGetLocalTimeMillis();
 470         if (now > (sm_lastUpdate + sm_updateInterval))
 471         {
 472             sm_lastUpdate = now;
 473         }
 474     }
 475 #endif
 476 }
 477
 478 /*
 479  * Idle events
 480  */
 481
 482 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 483
 484 // Can we send an idle event?
 485 bool wxIdleEvent::CanSend(wxWindow* win)
 486 {
 487     // Don't update if we've switched global updating off
 488     // and this window doesn't support updates.
 489     if (win &&
 490        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 491        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 492         return false;
 493
 494     return true;
 495 }
 496
 497 /*
 498  * Scroll events
 499  */
 500
 501 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 502                              int id,
 503                              int pos,
 504                              int orient)
 505     : wxCommandEvent(commandType, id)
 506 {
 507     m_extraLong = orient;
 508     m_commandInt = pos;
 509 }
 510
 511 /*
 512  * ScrollWin events
 513  */
 514
 515 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 516                                    int pos,
 517                                    int orient)
 518 {
 519     m_eventType = commandType;
 520     m_extraLong = orient;
 521     m_commandInt = pos;
 522 }
 523
 524 /*
 525  * Mouse events
 526  *
 527  */
 528
 529 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 530 {
 531     m_eventType = commandType;
 532     m_metaDown = false;
 533     m_altDown = false;
 534     m_controlDown = false;
 535     m_shiftDown = false;
 536     m_leftDown = false;
 537     m_rightDown = false;
 538     m_middleDown = false;
 539     m_x = 0;
 540     m_y = 0;
 541     m_wheelRotation = 0;
 542     m_wheelDelta = 0;
 543     m_linesPerAction = 0;
 544 }
 545
 546 void wxMouseEvent::Assign(const wxMouseEvent& event)
 547 {
 548     m_eventType = event.m_eventType;
 549
 550     m_x = event.m_x;
 551     m_y = event.m_y;
 552
 553     m_leftDown = event.m_leftDown;
 554     m_middleDown = event.m_middleDown;
 555     m_rightDown = event.m_rightDown;
 556
 557     m_controlDown = event.m_controlDown;
 558     m_shiftDown = event.m_shiftDown;
 559     m_altDown = event.m_altDown;
 560     m_metaDown = event.m_metaDown;
 561
 562     m_wheelRotation = event.m_wheelRotation;
 563     m_wheelDelta = event.m_wheelDelta;
 564     m_linesPerAction = event.m_linesPerAction;
 565 }
 566
 567 // return true if was a button dclick event
 568 bool wxMouseEvent::ButtonDClick(int but) const
 569 {
 570     switch (but)
 571     {
 572         default:
 573             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 574             // fall through
 575
 576         case wxMOUSE_BTN_ANY:
 577             return (LeftDClick() || MiddleDClick() || RightDClick());
 578
 579         case wxMOUSE_BTN_LEFT:
 580             return LeftDClick();
 581
 582         case wxMOUSE_BTN_MIDDLE:
 583             return MiddleDClick();
 584
 585         case wxMOUSE_BTN_RIGHT:
 586             return RightDClick();
 587     }
 588 }
 589
 590 // return true if was a button down event
 591 bool wxMouseEvent::ButtonDown(int but) const
 592 {
 593     switch (but)
 594     {
 595         default:
 596             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 597             // fall through
 598
 599         case wxMOUSE_BTN_ANY:
 600             return (LeftDown() || MiddleDown() || RightDown());
 601
 602         case wxMOUSE_BTN_LEFT:
 603             return LeftDown();
 604
 605         case wxMOUSE_BTN_MIDDLE:
 606             return MiddleDown();
 607
 608         case wxMOUSE_BTN_RIGHT:
 609             return RightDown();
 610     }
 611 }
 612
 613 // return true if was a button up event
 614 bool wxMouseEvent::ButtonUp(int but) const
 615 {
 616     switch (but)
 617     {
 618         default:
 619             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 620             // fall through
 621
 622         case wxMOUSE_BTN_ANY:
 623             return (LeftUp() || MiddleUp() || RightUp());
 624
 625         case wxMOUSE_BTN_LEFT:
 626             return LeftUp();
 627
 628         case wxMOUSE_BTN_MIDDLE:
 629             return MiddleUp();
 630
 631         case wxMOUSE_BTN_RIGHT:
 632             return RightUp();
 633     }
 634 }
 635
 636 // return true if the given button is currently changing state
 637 bool wxMouseEvent::Button(int but) const
 638 {
 639     switch (but)
 640     {
 641         default:
 642             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 643             // fall through
 644
 645         case wxMOUSE_BTN_ANY:
 646             return ButtonUp(wxMOUSE_BTN_ANY) ||
 647                     ButtonDown(wxMOUSE_BTN_ANY) ||
 648                         ButtonDClick(wxMOUSE_BTN_ANY);
 649
 650         case wxMOUSE_BTN_LEFT:
 651             return LeftDown() || LeftUp() || LeftDClick();
 652
 653         case wxMOUSE_BTN_MIDDLE:
 654             return MiddleDown() || MiddleUp() || MiddleDClick();
 655
 656         case wxMOUSE_BTN_RIGHT:
 657             return RightDown() || RightUp() || RightDClick();
 658     }
 659 }
 660
 661 bool wxMouseEvent::ButtonIsDown(int but) const
 662 {
 663     switch (but)
 664     {
 665         default:
 666             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 667             // fall through
 668
 669         case wxMOUSE_BTN_ANY:
 670             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 671
 672         case wxMOUSE_BTN_LEFT:
 673             return LeftIsDown();
 674
 675         case wxMOUSE_BTN_MIDDLE:
 676             return MiddleIsDown();
 677
 678         case wxMOUSE_BTN_RIGHT:
 679             return RightIsDown();
 680     }
 681 }
 682
 683 int wxMouseEvent::GetButton() const
 684 {
 685     for ( int i = 1; i <= 3; i++ )
 686     {
 687         if ( Button(i) )
 688         {
 689             return i;
 690         }
 691     }
 692
 693     return wxMOUSE_BTN_NONE;
 694 }
 695
 696 // Find the logical position of the event given the DC
 697 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 698 {
 699     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 700     return pt;
 701 }
 702
 703
 704 /*
 705  * Keyboard event
 706  *
 707  */
 708
 709 wxKeyEvent::wxKeyEvent(wxEventType type)
 710 {
 711     m_eventType = type;
 712     m_shiftDown = false;
 713     m_controlDown = false;
 714     m_metaDown = false;
 715     m_altDown = false;
 716     m_keyCode = 0;
 717     m_scanCode = 0;
 718 #if wxUSE_UNICODE
 719     m_uniChar = 0;
 720 #endif
 721 }
 722
 723 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 724     : wxEvent(evt)
 725 {
 726     m_x = evt.m_x;
 727     m_y = evt.m_y;
 728
 729     m_keyCode = evt.m_keyCode;
 730
 731     m_controlDown = evt.m_controlDown;
 732     m_shiftDown = evt.m_shiftDown;
 733     m_altDown = evt.m_altDown;
 734     m_metaDown = evt.m_metaDown;
 735     m_scanCode = evt.m_scanCode;
 736     m_rawCode = evt.m_rawCode;
 737     m_rawFlags = evt.m_rawFlags;
 738
 739 #if wxUSE_UNICODE
 740     m_uniChar = evt.m_uniChar;
 741 #endif
 742 }
 743
 744 #if WXWIN_COMPATIBILITY_2_6
 745 long wxKeyEvent::KeyCode() const
 746 {
 747     return m_keyCode;
 748 }
 749 #endif // WXWIN_COMPATIBILITY_2_6
 750
 751 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 752 {
 753     SetEventType(wxEVT_CREATE);
 754     SetEventObject(win);
 755 }
 756
 757 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 758 {
 759     SetEventType(wxEVT_DESTROY);
 760     SetEventObject(win);
 761 }
 762
 763 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 764                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 765 {
 766     SetEventObject(win);
 767 }
 768
 769 // ----------------------------------------------------------------------------
 770 // wxHelpEvent
 771 // ----------------------------------------------------------------------------
 772
 773 /* static */
 774 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 775 {
 776     if ( origin == Origin_Unknown )
 777     {
 778         // assume that the event comes from the help button if it's not from
 779         // keyboard and that pressing F1 always results in the help event
 780         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 781     }
 782
 783     return origin;
 784 }
 785
 786 #endif // wxUSE_GUI
 787
 788
 789 #if wxUSE_BASE
 790
 791 // ----------------------------------------------------------------------------
 792 // wxEventHashTable
 793 // ----------------------------------------------------------------------------
 794
 795 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 796
 797 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 798
 799 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 800                 : m_table(table),
 801                   m_rebuildHash(true)
 802 {
 803     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 804
 805     m_next = sm_first;
 806     if (m_next)
 807         m_next->m_previous = this;
 808     sm_first = this;
 809 }
 810
 811 wxEventHashTable::~wxEventHashTable()
 812 {
 813     if (m_next)
 814         m_next->m_previous = m_previous;
 815     if (m_previous)
 816         m_previous->m_next = m_next;
 817     if (sm_first == this)
 818         sm_first = m_next;
 819
 820     Clear();
 821 }
 822
 823 void wxEventHashTable::Clear()
 824 {
 825     size_t i;
 826     for(i = 0; i < m_size; i++)
 827     {
 828         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 829         if (eTTnode)
 830         {
 831             delete eTTnode;
 832         }
 833     }
 834
 835     // Necessary in order to not invoke the
 836     // overloaded delete operator when statics are cleaned up
 837     if (m_eventTypeTable)
 838         delete[] m_eventTypeTable;
 839
 840     m_eventTypeTable = NULL;
 841     m_size = 0;
 842 }
 843
 844 // Clear all tables
 845 void wxEventHashTable::ClearAll()
 846 {
 847     wxEventHashTable* table = sm_first;
 848     while (table)
 849     {
 850         table->Clear();
 851         table = table->m_next;
 852     }
 853 }
 854
 855 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 856 {
 857     if (m_rebuildHash)
 858     {
 859         InitHashTable();
 860         m_rebuildHash = false;
 861     }
 862
 863     if (!m_eventTypeTable)
 864         return false;
 865
 866     // Find all entries for the given event type.
 867     wxEventType eventType = event.GetEventType();
 868     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 869     if (eTTnode && eTTnode->eventType == eventType)
 870     {
 871         // Now start the search for an event handler
 872         // that can handle an event with the given ID.
 873         const wxEventTableEntryPointerArray&
 874             eventEntryTable = eTTnode->eventEntryTable;
 875
 876         const size_t count = eventEntryTable.GetCount();
 877         for (size_t n = 0; n < count; n++)
 878         {
 879             if ( wxEvtHandler::
 880                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 881             {
 882                 return true;
 883             }
 884         }
 885     }
 886
 887     return false;
 888 }
 889
 890 void wxEventHashTable::InitHashTable()
 891 {
 892     // Loop over the event tables and all its base tables.
 893     const wxEventTable *table = &m_table;
 894     while (table)
 895     {
 896         // Retrieve all valid event handler entries
 897         const wxEventTableEntry *entry = table->entries;
 898         while (entry->m_fn != 0)
 899         {
 900             // Add the event entry in the Hash.
 901             AddEntry(*entry);
 902
 903             entry++;
 904         }
 905
 906         table = table->baseTable;
 907     }
 908
 909     // Lets free some memory.
 910     size_t i;
 911     for(i = 0; i < m_size; i++)
 912     {
 913         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 914         if (eTTnode)
 915         {
 916             eTTnode->eventEntryTable.Shrink();
 917         }
 918     }
 919 }
 920
 921 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 922 {
 923     // This might happen 'accidentally' as the app is exiting
 924     if (!m_eventTypeTable)
 925         return;
 926
 927     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 928     EventTypeTablePointer  eTTnode = *peTTnode;
 929
 930     if (eTTnode)
 931     {
 932         if (eTTnode->eventType != entry.m_eventType)
 933         {
 934             // Resize the table!
 935             GrowEventTypeTable();
 936             // Try again to add it.
 937             AddEntry(entry);
 938             return;
 939         }
 940     }
 941     else
 942     {
 943         eTTnode = new EventTypeTable;
 944         eTTnode->eventType = entry.m_eventType;
 945         *peTTnode = eTTnode;
 946     }
 947
 948     // Fill all hash entries between entry.m_id and entry.m_lastId...
 949     eTTnode->eventEntryTable.Add(&entry);
 950 }
 951
 952 void wxEventHashTable::AllocEventTypeTable(size_t size)
 953 {
 954     m_eventTypeTable = new EventTypeTablePointer[size];
 955     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 956     m_size = size;
 957 }
 958
 959 void wxEventHashTable::GrowEventTypeTable()
 960 {
 961     size_t oldSize = m_size;
 962     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 963
 964     // TODO: Search the most optimal grow sequence
 965     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 966
 967     for ( size_t i = 0; i < oldSize; /* */ )
 968     {
 969         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 970         if (eTToldNode)
 971         {
 972             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 973             EventTypeTablePointer  eTTnode = *peTTnode;
 974
 975             // Check for collision, we don't want any.
 976             if (eTTnode)
 977             {
 978                 GrowEventTypeTable();
 979                 continue; // Don't increment the counter,
 980                           // as we still need to add this element.
 981             }
 982             else
 983             {
 984                 // Get the old value and put it in the new table.
 985                 *peTTnode = oldEventTypeTable[i];
 986             }
 987         }
 988
 989         i++;
 990     }
 991
 992     delete[] oldEventTypeTable;
 993 }
 994
 995
 996 // ----------------------------------------------------------------------------
 997 // wxEvtHandler
 998 // ----------------------------------------------------------------------------
 999
1000 /*
1001  * Event handler
1002  */
1003
1004 wxEvtHandler::wxEvtHandler()
1005 {
1006     m_nextHandler = (wxEvtHandler *) NULL;
1007     m_previousHandler = (wxEvtHandler *) NULL;
1008     m_enabled = true;
1009     m_dynamicEvents = (wxList *) NULL;
1010     m_pendingEvents = (wxList *) NULL;
1011 #if wxUSE_THREADS
1012 #  if !defined(__VISAGECPP__)
1013     m_eventsLocker = new wxCriticalSection;
1014 #  endif
1015 #endif
1016     // no client data (yet)
1017     m_clientData = NULL;
1018     m_clientDataType = wxClientData_None;
1019 }
1020
1021 wxEvtHandler::~wxEvtHandler()
1022 {
1023     // Takes itself out of the list of handlers
1024     if (m_previousHandler)
1025         m_previousHandler->m_nextHandler = m_nextHandler;
1026
1027     if (m_nextHandler)
1028         m_nextHandler->m_previousHandler = m_previousHandler;
1029
1030     if (m_dynamicEvents)
1031     {
1032         wxList::iterator it = m_dynamicEvents->begin(),
1033                          en = m_dynamicEvents->end();
1034         for (;it != en; ++it)
1035         {
1036 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1037             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1038 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1039             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1040 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1041
1042             if (entry->m_callbackUserData)
1043                 delete entry->m_callbackUserData;
1044             delete entry;
1045         }
1046         delete m_dynamicEvents;
1047     };
1048
1049     if (m_pendingEvents)
1050         m_pendingEvents->DeleteContents(true);
1051     delete m_pendingEvents;
1052
1053 #if wxUSE_THREADS
1054 #  if !defined(__VISAGECPP__)
1055     delete m_eventsLocker;
1056 #  endif
1057
1058     // Remove us from wxPendingEvents if necessary.
1059     if(wxPendingEventsLocker)
1060         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1061     if ( wxPendingEvents )
1062     {
1063         // Delete all occurences of this from the list of pending events
1064         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1065     }
1066     if(wxPendingEventsLocker)
1067         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1068 #endif
1069
1070     // we only delete object data, not untyped
1071     if ( m_clientDataType == wxClientData_Object )
1072         delete m_clientObject;
1073 }
1074
1075 #if wxUSE_THREADS
1076
1077 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1078 {
1079     // check that we are really in a child thread
1080     wxASSERT_MSG( !wxThread::IsMain(),
1081                   wxT("use ProcessEvent() in main thread") );
1082
1083     AddPendingEvent(event);
1084
1085     return true;
1086 }
1087
1088 void wxEvtHandler::ClearEventLocker()
1089 {
1090 #if !defined(__VISAGECPP__)
1091     delete m_eventsLocker;
1092     m_eventsLocker = NULL;
1093 #endif
1094 }
1095
1096 #endif // wxUSE_THREADS
1097
1098 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1099 {
1100     // 1) Add event to list of pending events of this event handler
1101
1102     wxEvent *eventCopy = event.Clone();
1103
1104     // we must be able to copy the events here so the event class must
1105     // implement Clone() properly instead of just providing a NULL stab for it
1106     wxCHECK_RET( eventCopy,
1107                  _T("events of this type aren't supposed to be posted") );
1108
1109     wxENTER_CRIT_SECT( Lock() );
1110
1111     if ( !m_pendingEvents )
1112       m_pendingEvents = new wxList;
1113
1114     m_pendingEvents->Append(eventCopy);
1115
1116     wxLEAVE_CRIT_SECT( Lock() );
1117
1118     // 2) Add this event handler to list of event handlers that
1119     //    have pending events.
1120
1121     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1122
1123     if ( !wxPendingEvents )
1124         wxPendingEvents = new wxList;
1125     wxPendingEvents->Append(this);
1126
1127     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1128
1129     // 3) Inform the system that new pending events are somewhere,
1130     //    and that these should be processed in idle time.
1131     wxWakeUpIdle();
1132 }
1133
1134 void wxEvtHandler::ProcessPendingEvents()
1135 {
1136     // this method is only called by wxApp if this handler does have pending
1137     // events
1138     wxCHECK_RET( m_pendingEvents,
1139                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1140
1141     wxENTER_CRIT_SECT( Lock() );
1142
1143     // we leave the loop once we have processed all events that were present at
1144     // the start of ProcessPendingEvents because otherwise we could get into
1145     // infinite loop if the pending event handler execution resulted in another
1146     // event being posted
1147     size_t n = m_pendingEvents->size();
1148     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1149           node;
1150           node = m_pendingEvents->GetFirst() )
1151     {
1152         wxEvent *event = (wxEvent *)node->GetData();
1153
1154         // It's importan we remove event from list before processing it.
1155         // Else a nested event loop, for example from a modal dialog, might
1156         // process the same event again.
1157         m_pendingEvents->Erase(node);
1158
1159         wxLEAVE_CRIT_SECT( Lock() );
1160
1161         ProcessEvent(*event);
1162         delete event;
1163
1164         wxENTER_CRIT_SECT( Lock() );
1165
1166         if ( --n == 0 )
1167             break;
1168     }
1169
1170     wxLEAVE_CRIT_SECT( Lock() );
1171 }
1172
1173 /*
1174  * Event table stuff
1175  */
1176 /* static */ bool
1177 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1178                                     wxEvtHandler *handler,
1179                                     wxEvent& event)
1180 {
1181     int tableId1 = entry.m_id,
1182         tableId2 = entry.m_lastId;
1183
1184     // match only if the event type is the same and the id is either -1 in
1185     // the event table (meaning "any") or the event id matches the id
1186     // specified in the event table either exactly or by falling into
1187     // range between first and last
1188     if ((tableId1 == wxID_ANY) ||
1189         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1190         (tableId2 != wxID_ANY &&
1191          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1192     {
1193         event.Skip(false);
1194         event.m_callbackUserData = entry.m_callbackUserData;
1195
1196 #if wxUSE_EXCEPTIONS
1197         if ( wxTheApp )
1198         {
1199             // call the handler via wxApp method which allows the user to catch
1200             // any exceptions which may be thrown by any handler in the program
1201             // in one place
1202             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1203         }
1204         else
1205 #endif // wxUSE_EXCEPTIONS
1206         {
1207             // no need for an extra virtual function call
1208             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1209         }
1210
1211         if (!event.GetSkipped())
1212             return true;
1213     }
1214
1215     return false;
1216 }
1217
1218 bool wxEvtHandler::TryParent(wxEvent& event)
1219 {
1220     if ( wxTheApp && (this != wxTheApp) )
1221     {
1222         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1223         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1224         // processed appropriately via SearchEventTable.
1225         if ( event.GetEventType() != wxEVT_IDLE )
1226         {
1227             if ( wxTheApp->ProcessEvent(event) )
1228                 return true;
1229         }
1230     }
1231
1232     return false;
1233 }
1234
1235 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1236 {
1237     // allow the application to hook into event processing
1238     if ( wxTheApp )
1239     {
1240         int rc = wxTheApp->FilterEvent(event);
1241         if ( rc != -1 )
1242         {
1243             wxASSERT_MSG( rc == 1 || rc == 0,
1244                           _T("unexpected wxApp::FilterEvent return value") );
1245
1246             return rc != 0;
1247         }
1248         //else: proceed normally
1249     }
1250
1251     // An event handler can be enabled or disabled
1252     if ( GetEvtHandlerEnabled() )
1253     {
1254         // if we have a validator, it has higher priority than our own event
1255         // table
1256         if ( TryValidator(event) )
1257             return true;
1258
1259         // Handle per-instance dynamic event tables first
1260         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1261             return true;
1262
1263         // Then static per-class event tables
1264         if ( GetEventHashTable().HandleEvent(event, this) )
1265             return true;
1266     }
1267
1268     // Try going down the event handler chain
1269     if ( GetNextHandler() )
1270     {
1271         if ( GetNextHandler()->ProcessEvent(event) )
1272             return true;
1273     }
1274
1275     // Finally propagate the event upwards the window chain and/or to the
1276     // application object as necessary
1277     return TryParent(event);
1278 }
1279
1280
1281 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1282 {
1283     const wxEventType eventType = event.GetEventType();
1284     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1285     {
1286         const wxEventTableEntry& entry = table.entries[i];
1287         if ( eventType == entry.m_eventType )
1288         {
1289             if ( ProcessEventIfMatches(entry, this, event) )
1290                 return true;
1291         }
1292     }
1293
1294     return false;
1295 }
1296
1297 void wxEvtHandler::Connect( int id, int lastId,
1298                             int eventType,
1299                             wxObjectEventFunction func,
1300                             wxObject *userData,
1301                             wxEvtHandler* eventSink )
1302 {
1303 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1304     wxEventTableEntry *entry = new wxEventTableEntry;
1305     entry->m_eventType = eventType;
1306     entry->m_id = id;
1307     entry->m_lastId = lastId;
1308     entry->m_fn = func;
1309     entry->m_callbackUserData = userData;
1310 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1311     wxDynamicEventTableEntry *entry =
1312         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1313 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1314
1315     if (!m_dynamicEvents)
1316         m_dynamicEvents = new wxList;
1317
1318     // Insert at the front of the list so most recent additions are found first
1319     m_dynamicEvents->Insert( (wxObject*) entry );
1320 }
1321
1322 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1323                   wxObjectEventFunction func,
1324                   wxObject *userData,
1325                   wxEvtHandler* eventSink )
1326 {
1327     if (!m_dynamicEvents)
1328         return false;
1329
1330     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1331     while (node)
1332     {
1333 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1334             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1335 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1336             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1337 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1338
1339         if ((entry->m_id == id) &&
1340             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1341             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1342             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1343             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1344             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1345         {
1346             if (entry->m_callbackUserData)
1347                 delete entry->m_callbackUserData;
1348             m_dynamicEvents->Erase( node );
1349             delete entry;
1350             return true;
1351         }
1352         node = node->GetNext();
1353     }
1354     return false;
1355 }
1356
1357 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1358 {
1359     wxCHECK_MSG( m_dynamicEvents, false,
1360                  wxT("caller should check that we have dynamic events") );
1361
1362     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1363     while (node)
1364     {
1365 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1366         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1367 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1368         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1369 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1370
1371         // get next node before (maybe) calling the event handler as it could
1372         // call Disconnect() invalidating the current node
1373         node = node->GetNext();
1374
1375         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1376         {
1377             wxEvtHandler *handler =
1378 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1379                                     entry->m_eventSink ? entry->m_eventSink
1380                                                        :
1381 #endif
1382                                                          this;
1383
1384             if ( ProcessEventIfMatches(*entry, handler, event) )
1385             {
1386                 return true;
1387             }
1388         }
1389     }
1390
1391     return false;
1392 }
1393
1394 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1395 {
1396     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1397                   wxT("can't have both object and void client data") );
1398
1399     if ( m_clientObject )
1400         delete m_clientObject;
1401
1402     m_clientObject = data;
1403     m_clientDataType = wxClientData_Object;
1404 }
1405
1406 wxClientData *wxEvtHandler::DoGetClientObject() const
1407 {
1408     // it's not an error to call GetClientObject() on a window which doesn't
1409     // have client data at all - NULL will be returned
1410     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1411                   wxT("this window doesn't have object client data") );
1412
1413     return m_clientObject;
1414 }
1415
1416 void wxEvtHandler::DoSetClientData( void *data )
1417 {
1418     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1419                   wxT("can't have both object and void client data") );
1420
1421     m_clientData = data;
1422     m_clientDataType = wxClientData_Void;
1423 }
1424
1425 void *wxEvtHandler::DoGetClientData() const
1426 {
1427     // it's not an error to call GetClientData() on a window which doesn't have
1428     // client data at all - NULL will be returned
1429     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1430                   wxT("this window doesn't have void client data") );
1431
1432     return m_clientData;
1433 }
1434
1435 #endif // wxUSE_BASE
1436
1437 #if wxUSE_GUI
1438
1439 // Find a window with the focus, that is also a descendant of the given window.
1440 // This is used to determine the window to initially send commands to.
1441 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1442 {
1443     // Process events starting with the window with the focus, if any.
1444     wxWindow* focusWin = wxWindow::FindFocus();
1445     wxWindow* win = focusWin;
1446
1447     // Check if this is a descendant of this frame.
1448     // If not, win will be set to NULL.
1449     while (win)
1450     {
1451         if (win == ancestor)
1452             break;
1453         else
1454             win = win->GetParent();
1455     }
1456     if (win == (wxWindow*) NULL)
1457         focusWin = (wxWindow*) NULL;
1458
1459     return focusWin;
1460 }
1461
1462 #endif // wxUSE_GUI