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