src/common/event.cpp

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