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         #include "wx/textctrl.h"
  48     #endif // wxUSE_GUI
  49 #endif
  50
  51 #include "wx/event.h"
  52 #include "wx/module.h"
  53
  54 #if wxUSE_GUI
  55     #include "wx/validate.h"
  56 #if wxUSE_STOPWATCH
  57     #include "wx/stopwatch.h"
  58 #endif
  59 #endif // wxUSE_GUI
  60
  61 // ----------------------------------------------------------------------------
  62 // wxWin macros
  63 // ----------------------------------------------------------------------------
  64
  65 #if wxUSE_BASE
  66     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  67     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  68 #endif // wxUSE_BASE
  69
  70 #if wxUSE_GUI
  71     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  96     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  97     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  98     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  99     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
 100     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
 101     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
 102     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
 103     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
 104     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
 105     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
 106 #endif // wxUSE_GUI
 107
 108 #if wxUSE_BASE
 109
 110 const wxEventTable *wxEvtHandler::GetEventTable() const
 111     { return &wxEvtHandler::sm_eventTable; }
 112
 113 const wxEventTable wxEvtHandler::sm_eventTable =
 114     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 115
 116 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 117     { return wxEvtHandler::sm_eventHashTable; }
 118
 119 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 120
 121 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 122     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 123
 124
 125 #ifdef __WXDEBUG__
 126 // Clear up event hash table contents or we can get problems
 127 // when C++ is cleaning up the static object
 128 class wxEventTableEntryModule: public wxModule
 129 {
 130 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 131 public:
 132     wxEventTableEntryModule() {}
 133     bool OnInit() { return true; }
 134     void OnExit()
 135     {
 136         wxEventHashTable::ClearAll();
 137     }
 138 };
 139 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 140 #endif
 141
 142 // ----------------------------------------------------------------------------
 143 // global variables
 144 // ----------------------------------------------------------------------------
 145
 146 // To put pending event handlers
 147 wxList *wxPendingEvents = (wxList *)NULL;
 148
 149 #if wxUSE_THREADS
 150     // protects wxPendingEvents list
 151     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 152 #endif
 153
 154 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 155
 156 // common event types are defined here, other event types are defined by the
 157 // components which use them
 158
 159 const wxEventType wxEVT_FIRST = 10000;
 160 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 161
 162 DEFINE_EVENT_TYPE(wxEVT_NULL)
 163 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 164 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 165
 166 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 167
 168 #endif // wxUSE_BASE
 169
 170 #if wxUSE_GUI
 171
 172 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 173
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 183 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 184 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 185 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 186 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 187 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 188 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 189 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 190
 191 // Sockets and timers send events, too
 192 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 193
 194 // Mouse event types
 195 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 196 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 197 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 198 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 199 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 200 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 201 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 202 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 203 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 204 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 205 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 206 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 207 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 208 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 209 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 210 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 211
 212 // Non-client mouse events
 213 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 220 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 221 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 222 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 223 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 224 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 225
 226 // Character input event type
 227 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 228 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 229 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 230 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 231 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 232 #if wxUSE_HOTKEY
 233 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 234 #endif
 235
 236 // Set cursor event
 237 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 238
 239 // wxScrollbar and wxSlider event identifiers
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 247 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 248 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 249
 250 // see comments in wx/event.h, near wxEVT_SCROLL_ENDSCROLL declaration
 251 #if wxCHECK_VERSION(2, 7, 0)
 252     #error "Remove the line below, not needed any more"
 253 #endif
 254 const wxEventType wxEVT_SCROLL_ENDSCROLL = wxEVT_SCROLL_CHANGED;
 255
 256 // Scroll events from wxWindow
 257 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 258 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 259 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 260 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 261 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 262 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 263 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 264 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 265
 266 // System events
 267 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 268 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 269 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 270 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 271 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 272 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 273 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 274 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 275 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 276 DEFINE_EVENT_TYPE(wxEVT_POWER)
 277 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 278 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 279 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 280 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 281 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 282 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 283 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 284 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 285 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 286 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 287 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 288 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 289 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 290 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 291 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 292 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 293 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 294 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 295 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 296 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 297 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 298 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 299 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 300 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 301 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 302 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 303 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 304 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 305 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 306 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 307
 308 // Generic command events
 309 // Note: a click is a higher-level event than button down/up
 310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 313 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 314 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 315 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 316 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 317
 318 // Help events
 319 DEFINE_EVENT_TYPE(wxEVT_HELP)
 320 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 321
 322 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 323
 324 #endif // wxUSE_GUI
 325
 326 #if wxUSE_BASE
 327
 328 // ============================================================================
 329 // implementation
 330 // ============================================================================
 331
 332 // ----------------------------------------------------------------------------
 333 // event initialization
 334 // ----------------------------------------------------------------------------
 335
 336 int wxNewEventType()
 337 {
 338     // MT-FIXME
 339     static int s_lastUsedEventType = wxEVT_FIRST;
 340
 341     return s_lastUsedEventType++;
 342 }
 343
 344 // ----------------------------------------------------------------------------
 345 // wxEvent
 346 // ----------------------------------------------------------------------------
 347
 348 /*
 349  * General wxWidgets events, covering
 350  * all interesting things that might happen (button clicking, resizing,
 351  * setting text in widgets, etc.).
 352  *
 353  * For each completely new event type, derive a new event class.
 354  *
 355  */
 356
 357 wxEvent::wxEvent(int theId, wxEventType commandType )
 358 {
 359     m_eventType = commandType;
 360     m_eventObject = (wxObject *) NULL;
 361     m_timeStamp = 0;
 362     m_id = theId;
 363     m_skipped = false;
 364     m_callbackUserData = (wxObject *) NULL;
 365     m_isCommandEvent = false;
 366     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 367 }
 368
 369 wxEvent::wxEvent(const wxEvent &src)
 370     : wxObject()
 371     , m_eventObject(src.m_eventObject)
 372     , m_eventType(src.m_eventType)
 373     , m_timeStamp(src.m_timeStamp)
 374     , m_id(src.m_id)
 375     , m_callbackUserData(src.m_callbackUserData)
 376     , m_propagationLevel(src.m_propagationLevel)
 377     , m_skipped(src.m_skipped)
 378     , m_isCommandEvent(src.m_isCommandEvent)
 379 {
 380 }
 381
 382 #endif // wxUSE_BASE
 383
 384 #if wxUSE_GUI
 385
 386 /*
 387  * Command events
 388  *
 389  */
 390
 391 #ifdef __VISUALC__
 392     // 'this' : used in base member initializer list (for m_commandString)
 393     #pragma warning(disable:4355)
 394 #endif
 395
 396 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 397               : wxEvent(theId, commandType)
 398 #if WXWIN_COMPATIBILITY_2_4
 399               , m_commandString(this)
 400 #endif
 401 {
 402     m_clientData = (char *) NULL;
 403     m_clientObject = (wxClientData *) NULL;
 404     m_extraLong = 0;
 405     m_commandInt = 0;
 406     m_isCommandEvent = true;
 407
 408     // the command events are propagated upwards by default
 409     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 410 }
 411
 412 #ifdef __VISUALC__
 413     #pragma warning(default:4355)
 414 #endif
 415
 416 wxString wxCommandEvent::GetString() const
 417 {
 418     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 419         return m_cmdString;
 420     else
 421     {
 422 #if wxUSE_TEXTCTRL
 423         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 424         if(txt)
 425             return txt->GetValue();
 426         else
 427 #endif // wxUSE_TEXTCTRL
 428             return m_cmdString;
 429     }
 430 }
 431
 432 /*
 433  * UI update events
 434  */
 435
 436 #if wxUSE_LONGLONG
 437 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 438 #endif
 439
 440 long wxUpdateUIEvent::sm_updateInterval = 0;
 441
 442 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 443
 444 // Can we update?
 445 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 446 {
 447     // Don't update if we've switched global updating off
 448     // and this window doesn't support updates.
 449     if (win &&
 450        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 451        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 452         return false;
 453
 454     if (sm_updateInterval == -1)
 455         return false;
 456
 457     if (sm_updateInterval == 0)
 458         return true;
 459
 460 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 461     wxLongLong now = wxGetLocalTimeMillis();
 462     if (now > (sm_lastUpdate + sm_updateInterval))
 463     {
 464         return true;
 465     }
 466
 467     return false;
 468 #else
 469     // If we don't have wxStopWatch or wxLongLong, we
 470     // should err on the safe side and update now anyway.
 471     return true;
 472 #endif
 473 }
 474
 475 // Reset the update time to provide a delay until the next
 476 // time we should update
 477 void wxUpdateUIEvent::ResetUpdateTime()
 478 {
 479 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 480     if (sm_updateInterval > 0)
 481     {
 482         wxLongLong now = wxGetLocalTimeMillis();
 483         if (now > (sm_lastUpdate + sm_updateInterval))
 484         {
 485             sm_lastUpdate = now;
 486         }
 487     }
 488 #endif
 489 }
 490
 491 /*
 492  * Idle events
 493  */
 494
 495 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 496
 497 // Can we send an idle event?
 498 bool wxIdleEvent::CanSend(wxWindow* win)
 499 {
 500     // Don't update if we've switched global updating off
 501     // and this window doesn't support updates.
 502     if (win &&
 503        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 504        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 505         return false;
 506
 507     return true;
 508 }
 509
 510 /*
 511  * Scroll events
 512  */
 513
 514 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 515                              int id,
 516                              int pos,
 517                              int orient)
 518     : wxCommandEvent(commandType, id)
 519 {
 520     m_extraLong = orient;
 521     m_commandInt = pos;
 522 }
 523
 524 /*
 525  * ScrollWin events
 526  */
 527
 528 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 529                                    int pos,
 530                                    int orient)
 531 {
 532     m_eventType = commandType;
 533     m_extraLong = orient;
 534     m_commandInt = pos;
 535 }
 536
 537 /*
 538  * Mouse events
 539  *
 540  */
 541
 542 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 543 {
 544     m_eventType = commandType;
 545     m_metaDown = false;
 546     m_altDown = false;
 547     m_controlDown = false;
 548     m_shiftDown = false;
 549     m_leftDown = false;
 550     m_rightDown = false;
 551     m_middleDown = false;
 552     m_x = 0;
 553     m_y = 0;
 554     m_wheelRotation = 0;
 555     m_wheelDelta = 0;
 556     m_linesPerAction = 0;
 557 }
 558
 559 void wxMouseEvent::Assign(const wxMouseEvent& event)
 560 {
 561     m_eventType = event.m_eventType;
 562
 563     m_x = event.m_x;
 564     m_y = event.m_y;
 565
 566     m_leftDown = event.m_leftDown;
 567     m_middleDown = event.m_middleDown;
 568     m_rightDown = event.m_rightDown;
 569
 570     m_controlDown = event.m_controlDown;
 571     m_shiftDown = event.m_shiftDown;
 572     m_altDown = event.m_altDown;
 573     m_metaDown = event.m_metaDown;
 574
 575     m_wheelRotation = event.m_wheelRotation;
 576     m_wheelDelta = event.m_wheelDelta;
 577     m_linesPerAction = event.m_linesPerAction;
 578 }
 579
 580 // return true if was a button dclick event
 581 bool wxMouseEvent::ButtonDClick(int but) const
 582 {
 583     switch (but)
 584     {
 585         default:
 586             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 587             // fall through
 588
 589         case wxMOUSE_BTN_ANY:
 590             return (LeftDClick() || MiddleDClick() || RightDClick());
 591
 592         case wxMOUSE_BTN_LEFT:
 593             return LeftDClick();
 594
 595         case wxMOUSE_BTN_MIDDLE:
 596             return MiddleDClick();
 597
 598         case wxMOUSE_BTN_RIGHT:
 599             return RightDClick();
 600     }
 601 }
 602
 603 // return true if was a button down event
 604 bool wxMouseEvent::ButtonDown(int but) const
 605 {
 606     switch (but)
 607     {
 608         default:
 609             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 610             // fall through
 611
 612         case wxMOUSE_BTN_ANY:
 613             return (LeftDown() || MiddleDown() || RightDown());
 614
 615         case wxMOUSE_BTN_LEFT:
 616             return LeftDown();
 617
 618         case wxMOUSE_BTN_MIDDLE:
 619             return MiddleDown();
 620
 621         case wxMOUSE_BTN_RIGHT:
 622             return RightDown();
 623     }
 624 }
 625
 626 // return true if was a button up event
 627 bool wxMouseEvent::ButtonUp(int but) const
 628 {
 629     switch (but)
 630     {
 631         default:
 632             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 633             // fall through
 634
 635         case wxMOUSE_BTN_ANY:
 636             return (LeftUp() || MiddleUp() || RightUp());
 637
 638         case wxMOUSE_BTN_LEFT:
 639             return LeftUp();
 640
 641         case wxMOUSE_BTN_MIDDLE:
 642             return MiddleUp();
 643
 644         case wxMOUSE_BTN_RIGHT:
 645             return RightUp();
 646     }
 647 }
 648
 649 // return true if the given button is currently changing state
 650 bool wxMouseEvent::Button(int but) const
 651 {
 652     switch (but)
 653     {
 654         default:
 655             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 656             // fall through
 657
 658         case wxMOUSE_BTN_ANY:
 659             return ButtonUp(wxMOUSE_BTN_ANY) ||
 660                     ButtonDown(wxMOUSE_BTN_ANY) ||
 661                         ButtonDClick(wxMOUSE_BTN_ANY);
 662
 663         case wxMOUSE_BTN_LEFT:
 664             return LeftDown() || LeftUp() || LeftDClick();
 665
 666         case wxMOUSE_BTN_MIDDLE:
 667             return MiddleDown() || MiddleUp() || MiddleDClick();
 668
 669         case wxMOUSE_BTN_RIGHT:
 670             return RightDown() || RightUp() || RightDClick();
 671     }
 672 }
 673
 674 bool wxMouseEvent::ButtonIsDown(int but) const
 675 {
 676     switch (but)
 677     {
 678         default:
 679             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 680             // fall through
 681
 682         case wxMOUSE_BTN_ANY:
 683             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 684
 685         case wxMOUSE_BTN_LEFT:
 686             return LeftIsDown();
 687
 688         case wxMOUSE_BTN_MIDDLE:
 689             return MiddleIsDown();
 690
 691         case wxMOUSE_BTN_RIGHT:
 692             return RightIsDown();
 693     }
 694 }
 695
 696 int wxMouseEvent::GetButton() const
 697 {
 698     for ( int i = 1; i <= 3; i++ )
 699     {
 700         if ( Button(i) )
 701         {
 702             return i;
 703         }
 704     }
 705
 706     return wxMOUSE_BTN_NONE;
 707 }
 708
 709 // Find the logical position of the event given the DC
 710 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 711 {
 712     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 713     return pt;
 714 }
 715
 716
 717 /*
 718  * Keyboard event
 719  *
 720  */
 721
 722 wxKeyEvent::wxKeyEvent(wxEventType type)
 723 {
 724     m_eventType = type;
 725     m_shiftDown = false;
 726     m_controlDown = false;
 727     m_metaDown = false;
 728     m_altDown = false;
 729     m_keyCode = 0;
 730     m_scanCode = 0;
 731 #if wxUSE_UNICODE
 732     m_uniChar = 0;
 733 #endif
 734 }
 735
 736 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 737     : wxEvent(evt)
 738 {
 739     m_x = evt.m_x;
 740     m_y = evt.m_y;
 741
 742     m_keyCode = evt.m_keyCode;
 743
 744     m_controlDown = evt.m_controlDown;
 745     m_shiftDown = evt.m_shiftDown;
 746     m_altDown = evt.m_altDown;
 747     m_metaDown = evt.m_metaDown;
 748     m_scanCode = evt.m_scanCode;
 749     m_rawCode = evt.m_rawCode;
 750     m_rawFlags = evt.m_rawFlags;
 751
 752 #if wxUSE_UNICODE
 753     m_uniChar = evt.m_uniChar;
 754 #endif
 755 }
 756
 757 long wxKeyEvent::KeyCode() const
 758 {
 759     return m_keyCode;
 760 }
 761
 762 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 763 {
 764     SetEventType(wxEVT_CREATE);
 765     SetEventObject(win);
 766 }
 767
 768 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 769 {
 770     SetEventType(wxEVT_DESTROY);
 771     SetEventObject(win);
 772 }
 773
 774 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 775                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 776 {
 777     SetEventObject(win);
 778 }
 779
 780 #endif // wxUSE_GUI
 781
 782
 783 #if wxUSE_BASE
 784
 785 // ----------------------------------------------------------------------------
 786 // wxEventHashTable
 787 // ----------------------------------------------------------------------------
 788
 789 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 790
 791 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 792
 793 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 794                 : m_table(table),
 795                   m_rebuildHash(true)
 796 {
 797     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 798
 799     m_next = sm_first;
 800     if (m_next)
 801         m_next->m_previous = this;
 802     sm_first = this;
 803 }
 804
 805 wxEventHashTable::~wxEventHashTable()
 806 {
 807     if (m_next)
 808         m_next->m_previous = m_previous;
 809     if (m_previous)
 810         m_previous->m_next = m_next;
 811     if (sm_first == this)
 812         sm_first = m_next;
 813
 814     Clear();
 815 }
 816
 817 void wxEventHashTable::Clear()
 818 {
 819     size_t i;
 820     for(i = 0; i < m_size; i++)
 821     {
 822         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 823         if (eTTnode)
 824         {
 825             delete eTTnode;
 826         }
 827     }
 828
 829     // Necessary in order to not invoke the
 830     // overloaded delete operator when statics are cleaned up
 831     if (m_eventTypeTable)
 832         delete[] m_eventTypeTable;
 833
 834     m_eventTypeTable = NULL;
 835     m_size = 0;
 836 }
 837
 838 // Clear all tables
 839 void wxEventHashTable::ClearAll()
 840 {
 841     wxEventHashTable* table = sm_first;
 842     while (table)
 843     {
 844         table->Clear();
 845         table = table->m_next;
 846     }
 847 }
 848
 849 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 850 {
 851     if (m_rebuildHash)
 852     {
 853         InitHashTable();
 854         m_rebuildHash = false;
 855     }
 856
 857     if (!m_eventTypeTable)
 858         return false;
 859
 860     // Find all entries for the given event type.
 861     wxEventType eventType = event.GetEventType();
 862     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 863     if (eTTnode && eTTnode->eventType == eventType)
 864     {
 865         // Now start the search for an event handler
 866         // that can handle an event with the given ID.
 867         const wxEventTableEntryPointerArray&
 868             eventEntryTable = eTTnode->eventEntryTable;
 869
 870         const size_t count = eventEntryTable.GetCount();
 871         for (size_t n = 0; n < count; n++)
 872         {
 873             if ( wxEvtHandler::
 874                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 875             {
 876                 return true;
 877             }
 878         }
 879     }
 880
 881     return false;
 882 }
 883
 884 void wxEventHashTable::InitHashTable()
 885 {
 886     // Loop over the event tables and all its base tables.
 887     const wxEventTable *table = &m_table;
 888     while (table)
 889     {
 890         // Retrieve all valid event handler entries
 891         const wxEventTableEntry *entry = table->entries;
 892         while (entry->m_fn != 0)
 893         {
 894             // Add the event entry in the Hash.
 895             AddEntry(*entry);
 896
 897             entry++;
 898         }
 899
 900         table = table->baseTable;
 901     }
 902
 903     // Lets free some memory.
 904     size_t i;
 905     for(i = 0; i < m_size; i++)
 906     {
 907         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 908         if (eTTnode)
 909         {
 910             eTTnode->eventEntryTable.Shrink();
 911         }
 912     }
 913 }
 914
 915 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 916 {
 917     // This might happen 'accidentally' as the app is exiting
 918     if (!m_eventTypeTable)
 919         return;
 920
 921     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 922     EventTypeTablePointer  eTTnode = *peTTnode;
 923
 924     if (eTTnode)
 925     {
 926         if (eTTnode->eventType != entry.m_eventType)
 927         {
 928             // Resize the table!
 929             GrowEventTypeTable();
 930             // Try again to add it.
 931             AddEntry(entry);
 932             return;
 933         }
 934     }
 935     else
 936     {
 937         eTTnode = new EventTypeTable;
 938         eTTnode->eventType = entry.m_eventType;
 939         *peTTnode = eTTnode;
 940     }
 941
 942     // Fill all hash entries between entry.m_id and entry.m_lastId...
 943     eTTnode->eventEntryTable.Add(&entry);
 944 }
 945
 946 void wxEventHashTable::AllocEventTypeTable(size_t size)
 947 {
 948     m_eventTypeTable = new EventTypeTablePointer[size];
 949     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 950     m_size = size;
 951 }
 952
 953 void wxEventHashTable::GrowEventTypeTable()
 954 {
 955     size_t oldSize = m_size;
 956     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 957
 958     // TODO: Search the most optimal grow sequence
 959     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 960
 961     for ( size_t i = 0; i < oldSize; /* */ )
 962     {
 963         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 964         if (eTToldNode)
 965         {
 966             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 967             EventTypeTablePointer  eTTnode = *peTTnode;
 968
 969             // Check for collision, we don't want any.
 970             if (eTTnode)
 971             {
 972                 GrowEventTypeTable();
 973                 continue; // Don't increment the counter,
 974                           // as we still need to add this element.
 975             }
 976             else
 977             {
 978                 // Get the old value and put it in the new table.
 979                 *peTTnode = oldEventTypeTable[i];
 980             }
 981         }
 982
 983         i++;
 984     }
 985
 986     delete[] oldEventTypeTable;
 987 }
 988
 989
 990 // ----------------------------------------------------------------------------
 991 // wxEvtHandler
 992 // ----------------------------------------------------------------------------
 993
 994 /*
 995  * Event handler
 996  */
 997
 998 wxEvtHandler::wxEvtHandler()
 999 {
1000     m_nextHandler = (wxEvtHandler *) NULL;
1001     m_previousHandler = (wxEvtHandler *) NULL;
1002     m_enabled = true;
1003     m_dynamicEvents = (wxList *) NULL;
1004     m_pendingEvents = (wxList *) NULL;
1005 #if wxUSE_THREADS
1006 #  if !defined(__VISAGECPP__)
1007     m_eventsLocker = new wxCriticalSection;
1008 #  endif
1009 #endif
1010     // no client data (yet)
1011     m_clientData = NULL;
1012     m_clientDataType = wxClientData_None;
1013 }
1014
1015 wxEvtHandler::~wxEvtHandler()
1016 {
1017     // Takes itself out of the list of handlers
1018     if (m_previousHandler)
1019         m_previousHandler->m_nextHandler = m_nextHandler;
1020
1021     if (m_nextHandler)
1022         m_nextHandler->m_previousHandler = m_previousHandler;
1023
1024     if (m_dynamicEvents)
1025     {
1026         wxList::iterator it = m_dynamicEvents->begin(),
1027                          en = m_dynamicEvents->end();
1028         for (;it != en; ++it)
1029         {
1030 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1031             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1032 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1033             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1034 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1035
1036             if (entry->m_callbackUserData)
1037                 delete entry->m_callbackUserData;
1038             delete entry;
1039         }
1040         delete m_dynamicEvents;
1041     };
1042
1043     delete m_pendingEvents;
1044
1045 #if wxUSE_THREADS
1046 #  if !defined(__VISAGECPP__)
1047     delete m_eventsLocker;
1048 #  endif
1049
1050     // Remove us from wxPendingEvents if necessary.
1051     if(wxPendingEventsLocker)
1052         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1053     if ( wxPendingEvents )
1054     {
1055         // Delete all occurences of this from the list of pending events
1056         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1057     }
1058     if(wxPendingEventsLocker)
1059         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1060 #endif
1061
1062     // we only delete object data, not untyped
1063     if ( m_clientDataType == wxClientData_Object )
1064         delete m_clientObject;
1065 }
1066
1067 #if wxUSE_THREADS
1068
1069 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1070 {
1071     // check that we are really in a child thread
1072     wxASSERT_MSG( !wxThread::IsMain(),
1073                   wxT("use ProcessEvent() in main thread") );
1074
1075     AddPendingEvent(event);
1076
1077     return true;
1078 }
1079
1080 void wxEvtHandler::ClearEventLocker()
1081 {
1082 #if !defined(__VISAGECPP__)
1083     delete m_eventsLocker;
1084     m_eventsLocker = NULL;
1085 #endif
1086 };
1087
1088 #endif // wxUSE_THREADS
1089
1090 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1091 {
1092     // 1) Add event to list of pending events of this event handler
1093
1094     wxEvent *eventCopy = event.Clone();
1095
1096     // we must be able to copy the events here so the event class must
1097     // implement Clone() properly instead of just providing a NULL stab for it
1098     wxCHECK_RET( eventCopy,
1099                  _T("events of this type aren't supposed to be posted") );
1100
1101     wxENTER_CRIT_SECT( Lock() );
1102
1103     if ( !m_pendingEvents )
1104       m_pendingEvents = new wxList;
1105
1106     m_pendingEvents->Append(eventCopy);
1107
1108     wxLEAVE_CRIT_SECT( Lock() );
1109
1110     // 2) Add this event handler to list of event handlers that
1111     //    have pending events.
1112
1113     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1114
1115     if ( !wxPendingEvents )
1116         wxPendingEvents = new wxList;
1117     wxPendingEvents->Append(this);
1118
1119     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1120
1121     // 3) Inform the system that new pending events are somwehere,
1122     //    and that these should be processed in idle time.
1123     wxWakeUpIdle();
1124 }
1125
1126 void wxEvtHandler::ProcessPendingEvents()
1127 {
1128     // this method is only called by wxApp if this handler does have pending
1129     // events
1130     wxCHECK_RET( m_pendingEvents,
1131                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1132
1133     wxENTER_CRIT_SECT( Lock() );
1134
1135     // we leave the loop once we have processed all events that were present at
1136     // the start of ProcessPendingEvents because otherwise we could get into
1137     // infinite loop if the pending event handler execution resulted in another
1138     // event being posted
1139     size_t n = m_pendingEvents->size();
1140     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1141           node;
1142           node = m_pendingEvents->GetFirst() )
1143     {
1144         wxEvent *event = (wxEvent *)node->GetData();
1145
1146         m_pendingEvents->Erase(node);
1147
1148         wxLEAVE_CRIT_SECT( Lock() );
1149
1150         ProcessEvent(*event);
1151         delete event;
1152
1153         wxENTER_CRIT_SECT( Lock() );
1154
1155         if ( !--n )
1156             break;
1157     }
1158
1159     wxLEAVE_CRIT_SECT( Lock() );
1160 }
1161
1162 /*
1163  * Event table stuff
1164  */
1165 /* static */ bool
1166 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1167                                     wxEvtHandler *handler,
1168                                     wxEvent& event)
1169 {
1170     int tableId1 = entry.m_id,
1171         tableId2 = entry.m_lastId;
1172
1173     // match only if the event type is the same and the id is either -1 in
1174     // the event table (meaning "any") or the event id matches the id
1175     // specified in the event table either exactly or by falling into
1176     // range between first and last
1177     if ((tableId1 == wxID_ANY) ||
1178         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1179         (tableId2 != wxID_ANY &&
1180          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1181     {
1182         event.Skip(false);
1183         event.m_callbackUserData = entry.m_callbackUserData;
1184
1185 #if wxUSE_EXCEPTIONS
1186         if ( wxTheApp )
1187         {
1188             // call the handler via wxApp method which allows the user to catch
1189             // any exceptions which may be thrown by any handler in the program
1190             // in one place
1191             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1192         }
1193         else
1194 #endif // wxUSE_EXCEPTIONS
1195         {
1196             // no need for an extra virtual function call
1197             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1198         }
1199
1200         if (!event.GetSkipped())
1201             return true;
1202     }
1203
1204     return false;
1205 }
1206
1207 bool wxEvtHandler::TryParent(wxEvent& event)
1208 {
1209     if ( wxTheApp && (this != wxTheApp) )
1210     {
1211         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1212         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1213         // processed appropriately via SearchEventTable.
1214         if ( event.GetEventType() != wxEVT_IDLE )
1215         {
1216             if ( wxTheApp->ProcessEvent(event) )
1217                 return true;
1218         }
1219     }
1220
1221     return false;
1222 }
1223
1224 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1225 {
1226     // allow the application to hook into event processing
1227     if ( wxTheApp )
1228     {
1229         int rc = wxTheApp->FilterEvent(event);
1230         if ( rc != -1 )
1231         {
1232             wxASSERT_MSG( rc == 1 || rc == 0,
1233                           _T("unexpected wxApp::FilterEvent return value") );
1234
1235             return rc != 0;
1236         }
1237         //else: proceed normally
1238     }
1239
1240     // An event handler can be enabled or disabled
1241     if ( GetEvtHandlerEnabled() )
1242     {
1243         // if we have a validator, it has higher priority than our own event
1244         // table
1245         if ( TryValidator(event) )
1246             return true;
1247
1248         // Handle per-instance dynamic event tables first
1249         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1250             return true;
1251
1252         // Then static per-class event tables
1253         if ( GetEventHashTable().HandleEvent(event, this) )
1254             return true;
1255     }
1256
1257     // Try going down the event handler chain
1258     if ( GetNextHandler() )
1259     {
1260         if ( GetNextHandler()->ProcessEvent(event) )
1261             return true;
1262     }
1263
1264     // Finally propagate the event upwards the window chain and/or to the
1265     // application object as necessary
1266     return TryParent(event);
1267 }
1268
1269
1270 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1271 {
1272     const wxEventType eventType = event.GetEventType();
1273     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1274     {
1275         const wxEventTableEntry& entry = table.entries[i];
1276         if ( eventType == entry.m_eventType )
1277         {
1278             if ( ProcessEventIfMatches(entry, this, event) )
1279                 return true;
1280         }
1281     }
1282
1283     return false;
1284 }
1285
1286 void wxEvtHandler::Connect( int id, int lastId,
1287                             int eventType,
1288                             wxObjectEventFunction func,
1289                             wxObject *userData,
1290                             wxEvtHandler* eventSink )
1291 {
1292 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1293     wxEventTableEntry *entry = new wxEventTableEntry;
1294     entry->m_eventType = eventType;
1295     entry->m_id = id;
1296     entry->m_lastId = lastId;
1297     entry->m_fn = func;
1298     entry->m_callbackUserData = userData;
1299 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1300     wxDynamicEventTableEntry *entry =
1301         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1302 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1303
1304     if (!m_dynamicEvents)
1305         m_dynamicEvents = new wxList;
1306
1307     // Insert at the front of the list so most recent additions are found first
1308     m_dynamicEvents->Insert( (wxObject*) entry );
1309 }
1310
1311 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1312                   wxObjectEventFunction func,
1313                   wxObject *userData,
1314                   wxEvtHandler* eventSink )
1315 {
1316     if (!m_dynamicEvents)
1317         return false;
1318
1319     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1320     while (node)
1321     {
1322 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1323             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1324 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1325             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1326 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1327
1328         if ((entry->m_id == id) &&
1329             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1330             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1331             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1332             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1333             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1334         {
1335             if (entry->m_callbackUserData)
1336                 delete entry->m_callbackUserData;
1337             m_dynamicEvents->Erase( node );
1338             delete entry;
1339             return true;
1340         }
1341         node = node->GetNext();
1342     }
1343     return false;
1344 }
1345
1346 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1347 {
1348     wxCHECK_MSG( m_dynamicEvents, false,
1349                  wxT("caller should check that we have dynamic events") );
1350
1351     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1352     while (node)
1353     {
1354 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1355         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1356 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1357         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1358 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1359
1360         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1361         {
1362             wxEvtHandler *handler =
1363 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1364                                     entry->m_eventSink ? entry->m_eventSink
1365                                                        :
1366 #endif
1367                                                          this;
1368
1369             if ( ProcessEventIfMatches(*entry, handler, event) )
1370             {
1371                 return true;
1372             }
1373         }
1374
1375         node = node->GetNext();
1376     }
1377
1378     return false;
1379 };
1380
1381 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1382 {
1383     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1384                   wxT("can't have both object and void client data") );
1385
1386     if ( m_clientObject )
1387         delete m_clientObject;
1388
1389     m_clientObject = data;
1390     m_clientDataType = wxClientData_Object;
1391 }
1392
1393 wxClientData *wxEvtHandler::DoGetClientObject() const
1394 {
1395     // it's not an error to call GetClientObject() on a window which doesn't
1396     // have client data at all - NULL will be returned
1397     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1398                   wxT("this window doesn't have object client data") );
1399
1400     return m_clientObject;
1401 }
1402
1403 void wxEvtHandler::DoSetClientData( void *data )
1404 {
1405     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1406                   wxT("can't have both object and void client data") );
1407
1408     m_clientData = data;
1409     m_clientDataType = wxClientData_Void;
1410 }
1411
1412 void *wxEvtHandler::DoGetClientData() const
1413 {
1414     // it's not an error to call GetClientData() on a window which doesn't have
1415     // client data at all - NULL will be returned
1416     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1417                   wxT("this window doesn't have void client data") );
1418
1419     return m_clientData;
1420 }
1421
1422 #endif // wxUSE_BASE
1423
1424 #if wxUSE_GUI
1425
1426 // Find a window with the focus, that is also a descendant of the given window.
1427 // This is used to determine the window to initially send commands to.
1428 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1429 {
1430     // Process events starting with the window with the focus, if any.
1431     wxWindow* focusWin = wxWindow::FindFocus();
1432     wxWindow* win = focusWin;
1433
1434     // Check if this is a descendant of this frame.
1435     // If not, win will be set to NULL.
1436     while (win)
1437     {
1438         if (win == ancestor)
1439             break;
1440         else
1441             win = win->GetParent();
1442     }
1443     if (win == (wxWindow*) NULL)
1444         focusWin = (wxWindow*) NULL;
1445
1446     return focusWin;
1447 }
1448
1449 #endif // wxUSE_GUI