src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        event.cpp
   3 // Purpose:     Event classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__)
  21 // Some older compilers (such as EMX) cannot handle
  22 // #pragma interface/implementation correctly, iff
  23 // #pragma implementation is used in _two_ translation
  24 // units (as created by e.g. event.cpp compiled for
  25 // libwx_base and event.cpp compiled for libwx_gui_core).
  26 // So we must not use those pragmas for those compilers in
  27 // such files.
  28     #pragma implementation "event.h"
  29 #endif
  30
  31 // For compilers that support precompilation, includes "wx.h".
  32 #include "wx/wxprec.h"
  33
  34 #ifdef __BORLANDC__
  35     #pragma hdrstop
  36 #endif
  37
  38 #ifndef WX_PRECOMP
  39     #include "wx/defs.h"
  40     #include "wx/app.h"
  41     #include "wx/list.h"
  42
  43     #if wxUSE_GUI
  44         #include "wx/control.h"
  45         #include "wx/utils.h"
  46         #include "wx/dc.h"
  47     #endif // wxUSE_GUI
  48 #endif
  49
  50 #include "wx/event.h"
  51 #include "wx/module.h"
  52
  53 #if wxUSE_GUI
  54     #include "wx/validate.h"
  55 #if wxUSE_STOPWATCH
  56     #include "wx/stopwatch.h"
  57 #endif
  58 #endif // wxUSE_GUI
  59
  60 // ----------------------------------------------------------------------------
  61 // wxWin macros
  62 // ----------------------------------------------------------------------------
  63
  64 #if wxUSE_BASE
  65     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  66     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  67 #endif // wxUSE_BASE
  68
  69 #if wxUSE_GUI
  70     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  96     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  97     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  98     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  99     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
 100     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
 101     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
 102     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
 103     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
 104     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
 105 #endif // wxUSE_GUI
 106
 107 #if wxUSE_BASE
 108
 109 const wxEventTable *wxEvtHandler::GetEventTable() const
 110     { return &wxEvtHandler::sm_eventTable; }
 111
 112 const wxEventTable wxEvtHandler::sm_eventTable =
 113     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 114
 115 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 116     { return wxEvtHandler::sm_eventHashTable; }
 117
 118 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 119
 120 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 121     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 122
 123
 124 #ifdef __WXDEBUG__
 125 // Clear up event hash table contents or we can get problems
 126 // when C++ is cleaning up the static object
 127 class wxEventTableEntryModule: public wxModule
 128 {
 129 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 130 public:
 131     wxEventTableEntryModule() {}
 132     bool OnInit() { return true; }
 133     void OnExit()
 134     {
 135         wxEventHashTable::ClearAll();
 136     }
 137 };
 138 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 139 #endif
 140
 141 // ----------------------------------------------------------------------------
 142 // global variables
 143 // ----------------------------------------------------------------------------
 144
 145 // To put pending event handlers
 146 wxList *wxPendingEvents = (wxList *)NULL;
 147
 148 #if wxUSE_THREADS
 149     // protects wxPendingEvents list
 150     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 151 #endif
 152
 153 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 154
 155 // common event types are defined here, other event types are defined by the
 156 // components which use them
 157
 158 const wxEventType wxEVT_FIRST = 10000;
 159 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 160
 161 DEFINE_EVENT_TYPE(wxEVT_NULL)
 162 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 163 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 164
 165 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 166
 167 #endif // wxUSE_BASE
 168
 169 #if wxUSE_GUI
 170
 171 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 172
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 183 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 184 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 185 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 186 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 187 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 188 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 189
 190 // Sockets and timers send events, too
 191 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 192
 193 // Mouse event types
 194 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 195 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 196 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 197 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 198 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 199 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 200 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 201 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 202 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 203 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 204 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 205 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 206 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 207 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 208 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 209 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 210
 211 // Non-client mouse events
 212 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 213 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 220 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 221 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 222 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 223 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 224
 225 // Character input event type
 226 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 227 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 228 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 229 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 230 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 231 #if wxUSE_HOTKEY
 232 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 233 #endif
 234
 235 // Set cursor event
 236 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 237
 238 // wxScrollbar and wxSlider event identifiers
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 247 DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL)
 248
 249 // Scroll events from wxWindow
 250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 254 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 255 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 256 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 257 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 258
 259 // System events
 260 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 261 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 262 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 263 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 264 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 265 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 266 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 267 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 268 DEFINE_EVENT_TYPE(wxEVT_POWER)
 269 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 270 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 271 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 272 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 273 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 274 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 275 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 276 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 277 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 278 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 279 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 280 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 281 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 282 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 283 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 284 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 285 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 286 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 287 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 288 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 289 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 290 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 291 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 292 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 293 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 294 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 295 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 296 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 297 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 298 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 299
 300 // Generic command events
 301 // Note: a click is a higher-level event than button down/up
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 304 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 305 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 306 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 309
 310 // Help events
 311 DEFINE_EVENT_TYPE(wxEVT_HELP)
 312 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 313
 314 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 315
 316 #endif // wxUSE_GUI
 317
 318 #if wxUSE_BASE
 319
 320 // ============================================================================
 321 // implementation
 322 // ============================================================================
 323
 324 // ----------------------------------------------------------------------------
 325 // event initialization
 326 // ----------------------------------------------------------------------------
 327
 328 int wxNewEventType()
 329 {
 330     // MT-FIXME
 331     static int s_lastUsedEventType = wxEVT_FIRST;
 332
 333     return s_lastUsedEventType++;
 334 }
 335
 336 // ----------------------------------------------------------------------------
 337 // wxEvent
 338 // ----------------------------------------------------------------------------
 339
 340 /*
 341  * General wxWindows events, covering
 342  * all interesting things that might happen (button clicking, resizing,
 343  * setting text in widgets, etc.).
 344  *
 345  * For each completely new event type, derive a new event class.
 346  *
 347  */
 348
 349 wxEvent::wxEvent(int theId, wxEventType commandType )
 350 {
 351     m_eventType = commandType;
 352     m_eventObject = (wxObject *) NULL;
 353     m_timeStamp = 0;
 354     m_id = theId;
 355     m_skipped = false;
 356     m_callbackUserData = (wxObject *) NULL;
 357     m_isCommandEvent = false;
 358     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 359 }
 360
 361 wxEvent::wxEvent(const wxEvent &src)
 362     : wxObject()
 363     , m_eventObject(src.m_eventObject)
 364     , m_eventType(src.m_eventType)
 365     , m_timeStamp(src.m_timeStamp)
 366     , m_id(src.m_id)
 367     , m_callbackUserData(src.m_callbackUserData)
 368     , m_propagationLevel(src.m_propagationLevel)
 369     , m_skipped(src.m_skipped)
 370     , m_isCommandEvent(src.m_isCommandEvent)
 371 {
 372 }
 373
 374 #endif // wxUSE_BASE
 375
 376 #if wxUSE_GUI
 377
 378 /*
 379  * Command events
 380  *
 381  */
 382
 383 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 384               : wxEvent(theId, commandType)
 385 {
 386     m_clientData = (char *) NULL;
 387     m_clientObject = (wxClientData *) NULL;
 388     m_extraLong = 0;
 389     m_commandInt = 0;
 390     m_isCommandEvent = true;
 391
 392     // the command events are propagated upwards by default
 393     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 394 }
 395
 396 /*
 397  * UI update events
 398  */
 399
 400 #if wxUSE_LONGLONG
 401 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 402 #endif
 403
 404 long wxUpdateUIEvent::sm_updateInterval = 0;
 405
 406 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 407
 408 // Can we update?
 409 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 410 {
 411     // Don't update if we've switched global updating off
 412     // and this window doesn't support updates.
 413     if (win &&
 414        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 415        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 416         return false;
 417
 418     if (sm_updateInterval == -1)
 419         return false;
 420     else if (sm_updateInterval == 0)
 421         return true;
 422     else
 423     {
 424 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 425         wxLongLong now = wxGetLocalTimeMillis();
 426         if (now > (sm_lastUpdate + sm_updateInterval))
 427         {
 428             return true;
 429         }
 430 #else
 431         // If we don't have wxStopWatch or wxLongLong, we
 432         // should err on the safe side and update now anyway.
 433         return true;
 434 #endif
 435     }
 436     return false;
 437 }
 438
 439 // Reset the update time to provide a delay until the next
 440 // time we should update
 441 void wxUpdateUIEvent::ResetUpdateTime()
 442 {
 443 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 444     if (sm_updateInterval > 0)
 445     {
 446         wxLongLong now = wxGetLocalTimeMillis();
 447         if (now > (sm_lastUpdate + sm_updateInterval))
 448         {
 449             sm_lastUpdate = now;
 450         }
 451     }
 452 #endif
 453 }
 454
 455 /*
 456  * Idle events
 457  */
 458
 459 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 460
 461 // Can we send an idle event?
 462 bool wxIdleEvent::CanSend(wxWindow* win)
 463 {
 464     // Don't update if we've switched global updating off
 465     // and this window doesn't support updates.
 466     if (win &&
 467        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 468        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 469         return false;
 470
 471     return true;
 472 }
 473
 474 /*
 475  * Scroll events
 476  */
 477
 478 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 479                              int id,
 480                              int pos,
 481                              int orient)
 482     : wxCommandEvent(commandType, id)
 483 {
 484     m_extraLong = orient;
 485     m_commandInt = pos;
 486 }
 487
 488 /*
 489  * ScrollWin events
 490  */
 491
 492 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 493                                    int pos,
 494                                    int orient)
 495 {
 496     m_eventType = commandType;
 497     m_extraLong = orient;
 498     m_commandInt = pos;
 499 }
 500
 501 /*
 502  * Mouse events
 503  *
 504  */
 505
 506 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 507 {
 508     m_eventType = commandType;
 509     m_metaDown = false;
 510     m_altDown = false;
 511     m_controlDown = false;
 512     m_shiftDown = false;
 513     m_leftDown = false;
 514     m_rightDown = false;
 515     m_middleDown = false;
 516     m_x = 0;
 517     m_y = 0;
 518     m_wheelRotation = 0;
 519     m_wheelDelta = 0;
 520     m_linesPerAction = 0;
 521 }
 522
 523 void wxMouseEvent::Assign(const wxMouseEvent& event)
 524 {
 525     m_eventType = event.m_eventType;
 526
 527     m_x = event.m_x;
 528     m_y = event.m_y;
 529
 530     m_leftDown = event.m_leftDown;
 531     m_middleDown = event.m_middleDown;
 532     m_rightDown = event.m_rightDown;
 533
 534     m_controlDown = event.m_controlDown;
 535     m_shiftDown = event.m_shiftDown;
 536     m_altDown = event.m_altDown;
 537     m_metaDown = event.m_metaDown;
 538
 539     m_wheelRotation = event.m_wheelRotation;
 540     m_wheelDelta = event.m_wheelDelta;
 541     m_linesPerAction = event.m_linesPerAction;
 542 }
 543
 544 // return true if was a button dclick event
 545 bool wxMouseEvent::ButtonDClick(int but) const
 546 {
 547     switch (but)
 548     {
 549         default:
 550             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 551             // fall through
 552
 553         case wxMOUSE_BTN_ANY:
 554             return (LeftDClick() || MiddleDClick() || RightDClick());
 555
 556         case wxMOUSE_BTN_LEFT:
 557             return LeftDClick();
 558
 559         case wxMOUSE_BTN_MIDDLE:
 560             return MiddleDClick();
 561
 562         case wxMOUSE_BTN_RIGHT:
 563             return RightDClick();
 564     }
 565
 566     return false;
 567 }
 568
 569 // return true if was a button down event
 570 bool wxMouseEvent::ButtonDown(int but) const
 571 {
 572     switch (but)
 573     {
 574         default:
 575             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 576             // fall through
 577
 578         case wxMOUSE_BTN_ANY:
 579             return (LeftDown() || MiddleDown() || RightDown());
 580
 581         case wxMOUSE_BTN_LEFT:
 582             return LeftDown();
 583
 584         case wxMOUSE_BTN_MIDDLE:
 585             return MiddleDown();
 586
 587         case wxMOUSE_BTN_RIGHT:
 588             return RightDown();
 589     }
 590
 591     return false;
 592 }
 593
 594 // return true if was a button up event
 595 bool wxMouseEvent::ButtonUp(int but) const
 596 {
 597     switch (but)
 598     {
 599         default:
 600             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 601             // fall through
 602
 603         case wxMOUSE_BTN_ANY:
 604             return (LeftUp() || MiddleUp() || RightUp());
 605
 606         case wxMOUSE_BTN_LEFT:
 607             return LeftUp();
 608
 609         case wxMOUSE_BTN_MIDDLE:
 610             return MiddleUp();
 611
 612         case wxMOUSE_BTN_RIGHT:
 613             return RightUp();
 614     }
 615
 616     return false;
 617 }
 618
 619 // return true if the given button is currently changing state
 620 bool wxMouseEvent::Button(int but) const
 621 {
 622     switch (but)
 623     {
 624         default:
 625             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 626             // fall through
 627
 628         case wxMOUSE_BTN_ANY:
 629             return ButtonUp(wxMOUSE_BTN_ANY) ||
 630                     ButtonDown(wxMOUSE_BTN_ANY) ||
 631                         ButtonDClick(wxMOUSE_BTN_ANY);
 632
 633         case wxMOUSE_BTN_LEFT:
 634             return LeftDown() || LeftUp() || LeftDClick();
 635
 636         case wxMOUSE_BTN_MIDDLE:
 637             return MiddleDown() || MiddleUp() || MiddleDClick();
 638
 639         case wxMOUSE_BTN_RIGHT:
 640             return RightDown() || RightUp() || RightDClick();
 641     }
 642
 643     return false;
 644 }
 645
 646 bool wxMouseEvent::ButtonIsDown(int but) const
 647 {
 648     switch (but)
 649     {
 650         default:
 651             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 652             // fall through
 653
 654         case wxMOUSE_BTN_ANY:
 655             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 656
 657         case wxMOUSE_BTN_LEFT:
 658             return LeftIsDown();
 659
 660         case wxMOUSE_BTN_MIDDLE:
 661             return MiddleIsDown();
 662
 663         case wxMOUSE_BTN_RIGHT:
 664             return RightIsDown();
 665     }
 666
 667     return false;
 668 }
 669
 670 int wxMouseEvent::GetButton() const
 671 {
 672     for ( int i = 1; i <= 3; i++ )
 673     {
 674         if ( Button(i) )
 675         {
 676             return i;
 677         }
 678     }
 679
 680     return wxMOUSE_BTN_NONE;
 681 }
 682
 683 // Find the logical position of the event given the DC
 684 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 685 {
 686     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 687     return pt;
 688 }
 689
 690
 691 /*
 692  * Keyboard event
 693  *
 694  */
 695
 696 wxKeyEvent::wxKeyEvent(wxEventType type)
 697 {
 698     m_eventType = type;
 699     m_shiftDown = false;
 700     m_controlDown = false;
 701     m_metaDown = false;
 702     m_altDown = false;
 703     m_keyCode = 0;
 704     m_scanCode = 0;
 705 #if wxUSE_UNICODE
 706     m_uniChar = 0;
 707 #endif
 708 }
 709
 710 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 711     : wxEvent(evt)
 712 {
 713     m_x = evt.m_x;
 714     m_y = evt.m_y;
 715
 716     m_keyCode = evt.m_keyCode;
 717
 718     m_controlDown = evt.m_controlDown;
 719     m_shiftDown = evt.m_shiftDown;
 720     m_altDown = evt.m_altDown;
 721     m_metaDown = evt.m_metaDown;
 722     m_scanCode = evt.m_scanCode;
 723     m_rawCode = evt.m_rawCode;
 724     m_rawFlags = evt.m_rawFlags;
 725
 726 #if wxUSE_UNICODE
 727     m_uniChar = evt.m_uniChar;
 728 #endif
 729 }
 730
 731 long wxKeyEvent::KeyCode() const
 732 {
 733     return m_keyCode;
 734 }
 735
 736 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 737 {
 738     SetEventType(wxEVT_CREATE);
 739     SetEventObject(win);
 740 }
 741
 742 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 743 {
 744     SetEventType(wxEVT_DESTROY);
 745     SetEventObject(win);
 746 }
 747
 748 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 749                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 750 {
 751     SetEventObject(win);
 752 }
 753
 754 #endif // wxUSE_GUI
 755
 756
 757 #if wxUSE_BASE
 758
 759 // ----------------------------------------------------------------------------
 760 // wxEventHashTable
 761 // ----------------------------------------------------------------------------
 762
 763 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 764
 765 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 766
 767 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 768                 : m_table(table),
 769                   m_rebuildHash(true)
 770 {
 771     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 772
 773     m_next = sm_first;
 774     if (m_next)
 775         m_next->m_previous = this;
 776     sm_first = this;
 777 }
 778
 779 wxEventHashTable::~wxEventHashTable()
 780 {
 781     if (m_next)
 782         m_next->m_previous = m_previous;
 783     if (m_previous)
 784         m_previous->m_next = m_next;
 785     if (sm_first == this)
 786         sm_first = m_next;
 787
 788     Clear();
 789 }
 790
 791 void wxEventHashTable::Clear()
 792 {
 793     size_t i;
 794     for(i = 0; i < m_size; i++)
 795     {
 796         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 797         if (eTTnode)
 798         {
 799             delete eTTnode;
 800         }
 801     }
 802
 803     // Necessary in order to not invoke the
 804     // overloaded delete operator when statics are cleaned up
 805     if (m_eventTypeTable)
 806         delete[] m_eventTypeTable;
 807
 808     m_eventTypeTable = NULL;
 809     m_size = 0;
 810 }
 811
 812 // Clear all tables
 813 void wxEventHashTable::ClearAll()
 814 {
 815     wxEventHashTable* table = sm_first;
 816     while (table)
 817     {
 818         table->Clear();
 819         table = table->m_next;
 820     }
 821 }
 822
 823 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 824 {
 825     if (m_rebuildHash)
 826     {
 827         InitHashTable();
 828         m_rebuildHash = false;
 829     }
 830
 831     if (!m_eventTypeTable)
 832         return FALSE;
 833
 834     // Find all entries for the given event type.
 835     wxEventType eventType = event.GetEventType();
 836     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 837     if (eTTnode && eTTnode->eventType == eventType)
 838     {
 839         // Now start the search for an event handler
 840         // that can handle an event with the given ID.
 841         const wxEventTableEntryPointerArray&
 842             eventEntryTable = eTTnode->eventEntryTable;
 843
 844         const size_t count = eventEntryTable.GetCount();
 845         for (size_t n = 0; n < count; n++)
 846         {
 847             if ( wxEvtHandler::
 848                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 849             {
 850                 return true;
 851             }
 852         }
 853     }
 854
 855     return false;
 856 }
 857
 858 void wxEventHashTable::InitHashTable()
 859 {
 860     // Loop over the event tables and all its base tables.
 861     const wxEventTable *table = &m_table;
 862     while (table)
 863     {
 864         // Retrieve all valid event handler entries
 865         const wxEventTableEntry *entry = table->entries;
 866         while (entry->m_fn != 0)
 867         {
 868             // Add the event entry in the Hash.
 869             AddEntry(*entry);
 870
 871             entry++;
 872         }
 873
 874         table = table->baseTable;
 875     }
 876
 877     // Lets free some memory.
 878     size_t i;
 879     for(i = 0; i < m_size; i++)
 880     {
 881         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 882         if (eTTnode)
 883         {
 884             eTTnode->eventEntryTable.Shrink();
 885         }
 886     }
 887 }
 888
 889 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 890 {
 891     // This might happen 'accidentally' as the app is exiting
 892     if (!m_eventTypeTable)
 893         return;
 894
 895     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 896     EventTypeTablePointer  eTTnode = *peTTnode;
 897
 898     if (eTTnode)
 899     {
 900         if (eTTnode->eventType != entry.m_eventType)
 901         {
 902             // Resize the table!
 903             GrowEventTypeTable();
 904             // Try again to add it.
 905             AddEntry(entry);
 906             return;
 907         }
 908     }
 909     else
 910     {
 911         eTTnode = new EventTypeTable;
 912         eTTnode->eventType = entry.m_eventType;
 913         *peTTnode = eTTnode;
 914     }
 915
 916     // Fill all hash entries between entry.m_id and entry.m_lastId...
 917     eTTnode->eventEntryTable.Add(&entry);
 918 }
 919
 920 void wxEventHashTable::AllocEventTypeTable(size_t size)
 921 {
 922     m_eventTypeTable = new EventTypeTablePointer[size];
 923     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 924     m_size = size;
 925 }
 926
 927 void wxEventHashTable::GrowEventTypeTable()
 928 {
 929     size_t oldSize = m_size;
 930     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 931
 932     // TODO: Search the most optimal grow sequence
 933     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 934
 935     for ( size_t i = 0; i < oldSize; /* */ )
 936     {
 937         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 938         if (eTToldNode)
 939         {
 940             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 941             EventTypeTablePointer  eTTnode = *peTTnode;
 942
 943             // Check for collision, we don't want any.
 944             if (eTTnode)
 945             {
 946                 GrowEventTypeTable();
 947                 continue; // Don't increment the counter,
 948                           // as we still need to add this element.
 949             }
 950             else
 951             {
 952                 // Get the old value and put it in the new table.
 953                 *peTTnode = oldEventTypeTable[i];
 954             }
 955         }
 956
 957         i++;
 958     }
 959
 960     delete[] oldEventTypeTable;
 961 }
 962
 963
 964 // ----------------------------------------------------------------------------
 965 // wxEvtHandler
 966 // ----------------------------------------------------------------------------
 967
 968 /*
 969  * Event handler
 970  */
 971
 972 wxEvtHandler::wxEvtHandler()
 973 {
 974     m_nextHandler = (wxEvtHandler *) NULL;
 975     m_previousHandler = (wxEvtHandler *) NULL;
 976     m_enabled = true;
 977     m_dynamicEvents = (wxList *) NULL;
 978     m_pendingEvents = (wxList *) NULL;
 979 #if wxUSE_THREADS
 980 #  if !defined(__VISAGECPP__)
 981     m_eventsLocker = new wxCriticalSection;
 982 #  endif
 983 #endif
 984     // no client data (yet)
 985     m_clientData = NULL;
 986     m_clientDataType = wxClientData_None;
 987 }
 988
 989 wxEvtHandler::~wxEvtHandler()
 990 {
 991     // Takes itself out of the list of handlers
 992     if (m_previousHandler)
 993         m_previousHandler->m_nextHandler = m_nextHandler;
 994
 995     if (m_nextHandler)
 996         m_nextHandler->m_previousHandler = m_previousHandler;
 997
 998     if (m_dynamicEvents)
 999     {
1000         wxList::iterator it = m_dynamicEvents->begin(),
1001                          en = m_dynamicEvents->end();
1002         for (;it != en; ++it)
1003         {
1004 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1005             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1006 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1007             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1008 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1009
1010             if (entry->m_callbackUserData)
1011                 delete entry->m_callbackUserData;
1012             delete entry;
1013         }
1014         delete m_dynamicEvents;
1015     };
1016
1017     delete m_pendingEvents;
1018
1019 #if wxUSE_THREADS
1020 #  if !defined(__VISAGECPP__)
1021     delete m_eventsLocker;
1022 #  endif
1023
1024     // Remove us from wxPendingEvents if necessary.
1025     if(wxPendingEventsLocker)
1026         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1027     if ( wxPendingEvents ) {
1028         wxPendingEvents->DeleteObject(this);
1029     }
1030     if(wxPendingEventsLocker)
1031         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1032 #endif
1033
1034     // we only delete object data, not untyped
1035     if ( m_clientDataType == wxClientData_Object )
1036         delete m_clientObject;
1037 }
1038
1039 #if wxUSE_THREADS
1040
1041 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1042 {
1043     // check that we are really in a child thread
1044     wxASSERT_MSG( !wxThread::IsMain(),
1045                   wxT("use ProcessEvent() in main thread") );
1046
1047     AddPendingEvent(event);
1048
1049     return true;
1050 }
1051
1052 void wxEvtHandler::ClearEventLocker()
1053 {
1054 #if !defined(__VISAGECPP__)
1055     delete m_eventsLocker;
1056     m_eventsLocker = NULL;
1057 #endif
1058 };
1059
1060 #endif // wxUSE_THREADS
1061
1062 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1063 {
1064     // 1) Add event to list of pending events of this event handler
1065
1066     wxEvent *eventCopy = event.Clone();
1067
1068     // we must be able to copy the events here so the event class must
1069     // implement Clone() properly instead of just providing a NULL stab for it
1070     wxCHECK_RET( eventCopy,
1071                  _T("events of this type aren't supposed to be posted") );
1072
1073 #if defined(__VISAGECPP__)
1074     wxENTER_CRIT_SECT( m_eventsLocker);
1075 #else
1076     wxENTER_CRIT_SECT( *m_eventsLocker);
1077 #endif
1078
1079     if ( !m_pendingEvents )
1080       m_pendingEvents = new wxList;
1081
1082     m_pendingEvents->Append(eventCopy);
1083
1084 #if defined(__VISAGECPP__)
1085     wxLEAVE_CRIT_SECT( m_eventsLocker);
1086 #else
1087     wxLEAVE_CRIT_SECT( *m_eventsLocker);
1088 #endif
1089
1090     // 2) Add this event handler to list of event handlers that
1091     //    have pending events.
1092
1093     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1094
1095     if ( !wxPendingEvents )
1096         wxPendingEvents = new wxList;
1097     wxPendingEvents->Append(this);
1098
1099     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1100
1101     // 3) Inform the system that new pending events are somwehere,
1102     //    and that these should be processed in idle time.
1103     wxWakeUpIdle();
1104 }
1105
1106 void wxEvtHandler::ProcessPendingEvents()
1107 {
1108 #if defined(__VISAGECPP__)
1109     wxENTER_CRIT_SECT( m_eventsLocker);
1110 #else
1111     wxENTER_CRIT_SECT( *m_eventsLocker);
1112 #endif
1113
1114     wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1115     while ( node )
1116     {
1117         wxEvent *event = (wxEvent *)node->GetData();
1118         m_pendingEvents->Erase(node);
1119
1120         // In ProcessEvent, new events might get added and
1121         // we can safely leave the crtical section here.
1122 #if defined(__VISAGECPP__)
1123         wxLEAVE_CRIT_SECT( m_eventsLocker);
1124 #else
1125         wxLEAVE_CRIT_SECT( *m_eventsLocker);
1126 #endif
1127         ProcessEvent(*event);
1128         delete event;
1129 #if defined(__VISAGECPP__)
1130         wxENTER_CRIT_SECT( m_eventsLocker);
1131 #else
1132         wxENTER_CRIT_SECT( *m_eventsLocker);
1133 #endif
1134
1135         node = m_pendingEvents->GetFirst();
1136     }
1137
1138 #if defined(__VISAGECPP__)
1139     wxLEAVE_CRIT_SECT( m_eventsLocker);
1140 #else
1141     wxLEAVE_CRIT_SECT( *m_eventsLocker);
1142 #endif
1143 }
1144
1145 /*
1146  * Event table stuff
1147  */
1148 /* static */ bool
1149 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1150                                     wxEvtHandler *handler,
1151                                     wxEvent& event)
1152 {
1153     int tableId1 = entry.m_id,
1154         tableId2 = entry.m_lastId;
1155
1156     // match only if the event type is the same and the id is either -1 in
1157     // the event table (meaning "any") or the event id matches the id
1158     // specified in the event table either exactly or by falling into
1159     // range between first and last
1160     if ((tableId1 == -1) ||
1161         (tableId2 == -1 && tableId1 == event.GetId()) ||
1162         (tableId2 != -1 &&
1163          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1164     {
1165         event.Skip(false);
1166         event.m_callbackUserData = entry.m_callbackUserData;
1167
1168 #if wxUSE_EXCEPTIONS
1169         if ( wxTheApp )
1170         {
1171             // call the handler via wxApp method which allows the user to catch
1172             // any exceptions which may be thrown by any handler in the program
1173             // in one place
1174             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1175         }
1176         else
1177 #endif // wxUSE_EXCEPTIONS
1178         {
1179             // no need for an extra virtual function call
1180             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1181         }
1182
1183         if (!event.GetSkipped())
1184             return true;
1185     }
1186
1187     return false;
1188 }
1189
1190 bool wxEvtHandler::TryParent(wxEvent& event)
1191 {
1192     if ( wxTheApp && (this != wxTheApp) )
1193     {
1194         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1195         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1196         // processed appropriately via SearchEventTable.
1197         if ( event.GetEventType() != wxEVT_IDLE )
1198         {
1199             if ( wxTheApp->ProcessEvent(event) )
1200                 return true;
1201         }
1202     }
1203
1204     return false;
1205 }
1206
1207 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1208 {
1209     // allow the application to hook into event processing
1210     if ( wxTheApp )
1211     {
1212         int rc = wxTheApp->FilterEvent(event);
1213         if ( rc != -1 )
1214         {
1215             wxASSERT_MSG( rc == 1 || rc == 0,
1216                           _T("unexpected wxApp::FilterEvent return value") );
1217
1218             return rc != 0;
1219         }
1220         //else: proceed normally
1221     }
1222
1223     // An event handler can be enabled or disabled
1224     if ( GetEvtHandlerEnabled() )
1225     {
1226         // if we have a validator, it has higher priority than our own event
1227         // table
1228         if ( TryValidator(event) )
1229             return true;
1230
1231         // Handle per-instance dynamic event tables first
1232         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1233             return true;
1234
1235         // Then static per-class event tables
1236         if ( GetEventHashTable().HandleEvent(event, this) )
1237             return true;
1238     }
1239
1240     // Try going down the event handler chain
1241     if ( GetNextHandler() )
1242     {
1243         if ( GetNextHandler()->ProcessEvent(event) )
1244             return true;
1245     }
1246
1247     // Finally propagate the event upwards the window chain and/or to the
1248     // application object as necessary
1249     return TryParent(event);
1250 }
1251
1252
1253 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1254 {
1255     const wxEventType eventType = event.GetEventType();
1256     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1257     {
1258         const wxEventTableEntry& entry = table.entries[i];
1259         if ( eventType == entry.m_eventType )
1260         {
1261             if ( ProcessEventIfMatches(entry, this, event) )
1262                 return true;
1263         }
1264     }
1265
1266     return false;
1267 }
1268
1269 void wxEvtHandler::Connect( int id, int lastId,
1270                             int eventType,
1271                             wxObjectEventFunction func,
1272                             wxObject *userData,
1273                             wxEvtHandler* eventSink )
1274 {
1275 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1276     wxEventTableEntry *entry = new wxEventTableEntry;
1277     entry->m_eventType = eventType;
1278     entry->m_id = id;
1279     entry->m_lastId = lastId;
1280     entry->m_fn = func;
1281     entry->m_callbackUserData = userData;
1282 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1283     wxDynamicEventTableEntry *entry =
1284         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1285 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1286
1287     if (!m_dynamicEvents)
1288         m_dynamicEvents = new wxList;
1289
1290     // Insert at the front of the list so most recent additions are found first
1291     m_dynamicEvents->Insert( (wxObject*) entry );
1292 }
1293
1294 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1295                   wxObjectEventFunction func,
1296                   wxObject *userData,
1297                   wxEvtHandler* eventSink )
1298 {
1299     if (!m_dynamicEvents)
1300         return false;
1301
1302     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1303     while (node)
1304     {
1305 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1306             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1307 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1308             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1309 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1310
1311         if ((entry->m_id == id) &&
1312             ((entry->m_lastId == lastId) || (lastId == -1)) &&
1313             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1314             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1315             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1316             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1317         {
1318             if (entry->m_callbackUserData)
1319                 delete entry->m_callbackUserData;
1320             m_dynamicEvents->Erase( node );
1321             delete entry;
1322             return true;
1323         }
1324         node = node->GetNext();
1325     }
1326     return false;
1327 }
1328
1329 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1330 {
1331     wxCHECK_MSG( m_dynamicEvents, false,
1332                  wxT("caller should check that we have dynamic events") );
1333
1334     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1335     while (node)
1336     {
1337 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1338         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1339 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1340         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1341 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1342
1343         if ((event.m_eventType == entry->m_eventType) && entry->m_fn)
1344         {
1345             wxEvtHandler *handler =
1346 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1347                                     entry->m_eventSink ? entry->m_eventSink
1348                                                        :
1349 #endif
1350                                                          this;
1351
1352             if ( ProcessEventIfMatches(*entry, handler, event) )
1353             {
1354                 return true;
1355             }
1356         }
1357
1358         node = node->GetNext();
1359     }
1360
1361     return false;
1362 };
1363
1364 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1365 {
1366     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1367                   wxT("can't have both object and void client data") );
1368
1369     if ( m_clientObject )
1370         delete m_clientObject;
1371
1372     m_clientObject = data;
1373     m_clientDataType = wxClientData_Object;
1374 }
1375
1376 wxClientData *wxEvtHandler::DoGetClientObject() const
1377 {
1378     // it's not an error to call GetClientObject() on a window which doesn't
1379     // have client data at all - NULL will be returned
1380     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1381                   wxT("this window doesn't have object client data") );
1382
1383     return m_clientObject;
1384 }
1385
1386 void wxEvtHandler::DoSetClientData( void *data )
1387 {
1388     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1389                   wxT("can't have both object and void client data") );
1390
1391     m_clientData = data;
1392     m_clientDataType = wxClientData_Void;
1393 }
1394
1395 void *wxEvtHandler::DoGetClientData() const
1396 {
1397     // it's not an error to call GetClientData() on a window which doesn't have
1398     // client data at all - NULL will be returned
1399     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1400                   wxT("this window doesn't have void client data") );
1401
1402     return m_clientData;
1403 }
1404
1405 #endif // wxUSE_BASE
1406
1407 #if wxUSE_GUI
1408
1409 // Find a window with the focus, that is also a descendant of the given window.
1410 // This is used to determine the window to initially send commands to.
1411 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1412 {
1413     // Process events starting with the window with the focus, if any.
1414     wxWindow* focusWin = wxWindow::FindFocus();
1415     wxWindow* win = focusWin;
1416
1417     // Check if this is a descendant of this frame.
1418     // If not, win will be set to NULL.
1419     while (win)
1420     {
1421         if (win == ancestor)
1422             break;
1423         else
1424             win = win->GetParent();
1425     }
1426     if (win == (wxWindow*) NULL)
1427         focusWin = (wxWindow*) NULL;
1428
1429     return focusWin;
1430 }
1431
1432 #endif // wxUSE_GUI