src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/event.cpp
   3 // Purpose:     Event classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/event.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/list.h"
  31     #include "wx/app.h"
  32     #include "wx/utils.h"
  33     #include "wx/stopwatch.h"
  34     #include "wx/module.h"
  35
  36     #if wxUSE_GUI
  37         #include "wx/control.h"
  38         #include "wx/dc.h"
  39         #include "wx/textctrl.h"
  40         #include "wx/validate.h"
  41     #endif // wxUSE_GUI
  42 #endif
  43
  44 // ----------------------------------------------------------------------------
  45 // wxWin macros
  46 // ----------------------------------------------------------------------------
  47
  48 #if wxUSE_BASE
  49     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  50     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  51 #endif // wxUSE_BASE
  52
  53 #if wxUSE_GUI
  54     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  55     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  56     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  57     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  58     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  59     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  91 #endif // wxUSE_GUI
  92
  93 #if wxUSE_BASE
  94
  95 const wxEventTable *wxEvtHandler::GetEventTable() const
  96     { return &wxEvtHandler::sm_eventTable; }
  97
  98 const wxEventTable wxEvtHandler::sm_eventTable =
  99     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 100
 101 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 102     { return wxEvtHandler::sm_eventHashTable; }
 103
 104 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 105
 106 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 107     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 108
 109
 110 #ifdef __WXDEBUG__
 111 // Clear up event hash table contents or we can get problems
 112 // when C++ is cleaning up the static object
 113 class wxEventTableEntryModule: public wxModule
 114 {
 115 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 116 public:
 117     wxEventTableEntryModule() {}
 118     bool OnInit() { return true; }
 119     void OnExit()
 120     {
 121         wxEventHashTable::ClearAll();
 122     }
 123 };
 124 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 125 #endif
 126
 127 // ----------------------------------------------------------------------------
 128 // global variables
 129 // ----------------------------------------------------------------------------
 130
 131 // To put pending event handlers
 132 wxList *wxPendingEvents = (wxList *)NULL;
 133
 134 #if wxUSE_THREADS
 135     // protects wxPendingEvents list
 136     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 137 #endif
 138
 139 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 140
 141 // common event types are defined here, other event types are defined by the
 142 // components which use them
 143
 144 const wxEventType wxEVT_FIRST = 10000;
 145 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 146
 147 DEFINE_EVENT_TYPE(wxEVT_NULL)
 148 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 149 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 150
 151 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 152
 153 #endif // wxUSE_BASE
 154
 155 #if wxUSE_GUI
 156
 157 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 158
 159 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 160 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 161 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 162 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 163 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 175
 176 // Sockets and timers send events, too
 177 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 178
 179 // Mouse event types
 180 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 181 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 182 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 183 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 184 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 185 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 186 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 187 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 188 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 189 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 190 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 191 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 192 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 193 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 194 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 195 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 196
 197 // Non-client mouse events
 198 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 199 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 200 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 201 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 202 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 203 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 204 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 205 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 206 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 207 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 208 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 209 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 210
 211 // Character input event type
 212 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 213 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 214 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 215 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 216 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 217 #if wxUSE_HOTKEY
 218 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 219 #endif
 220
 221 // Set cursor event
 222 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 223
 224 // wxScrollbar and wxSlider event identifiers
 225 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 226 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 227 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 228 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 229 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 230 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 231 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 232 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 233 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 234
 235 // Scroll events from wxWindow
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 237 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 244
 245 // System events
 246 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 247 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 248 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 249 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 250 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 251 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 252 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 253 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 254 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 255 DEFINE_EVENT_TYPE(wxEVT_POWER)
 256 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 257 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 258 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 259 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 260 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 261 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 262 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 263 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
 264 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 265 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 266 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 267 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 268 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 269 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 270 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 271 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 272 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 273 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 274 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 275 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 276 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 277 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 278 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 279 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 280 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 281 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 282 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 283 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 284 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 285 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 286 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 287
 288 // Clipboard events
 289 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 290 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 291 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 292
 293 // Generic command events
 294 // Note: a click is a higher-level event than button down/up
 295 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 296 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 297 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 298 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 299 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 302
 303 // Help events
 304 DEFINE_EVENT_TYPE(wxEVT_HELP)
 305 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 306
 307 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 308
 309 #endif // wxUSE_GUI
 310
 311 #if wxUSE_BASE
 312
 313 // ============================================================================
 314 // implementation
 315 // ============================================================================
 316
 317 // ----------------------------------------------------------------------------
 318 // event initialization
 319 // ----------------------------------------------------------------------------
 320
 321 int wxNewEventType()
 322 {
 323     // MT-FIXME
 324     static int s_lastUsedEventType = wxEVT_FIRST;
 325
 326     return s_lastUsedEventType++;
 327 }
 328
 329 // ----------------------------------------------------------------------------
 330 // wxEvent
 331 // ----------------------------------------------------------------------------
 332
 333 /*
 334  * General wxWidgets events, covering
 335  * all interesting things that might happen (button clicking, resizing,
 336  * setting text in widgets, etc.).
 337  *
 338  * For each completely new event type, derive a new event class.
 339  *
 340  */
 341
 342 wxEvent::wxEvent(int theId, wxEventType commandType )
 343 {
 344     m_eventType = commandType;
 345     m_eventObject = (wxObject *) NULL;
 346     m_timeStamp = 0;
 347     m_id = theId;
 348     m_skipped = false;
 349     m_callbackUserData = (wxObject *) NULL;
 350     m_isCommandEvent = false;
 351     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 352 }
 353
 354 wxEvent::wxEvent(const wxEvent &src)
 355     : wxObject(src)
 356     , m_eventObject(src.m_eventObject)
 357     , m_eventType(src.m_eventType)
 358     , m_timeStamp(src.m_timeStamp)
 359     , m_id(src.m_id)
 360     , m_callbackUserData(src.m_callbackUserData)
 361     , m_propagationLevel(src.m_propagationLevel)
 362     , m_skipped(src.m_skipped)
 363     , m_isCommandEvent(src.m_isCommandEvent)
 364 {
 365 }
 366
 367 #endif // wxUSE_BASE
 368
 369 #if wxUSE_GUI
 370
 371 /*
 372  * Command events
 373  *
 374  */
 375
 376 #ifdef __VISUALC__
 377     // 'this' : used in base member initializer list (for m_commandString)
 378     #pragma warning(disable:4355)
 379 #endif
 380
 381 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 382               : wxEvent(theId, commandType)
 383 #if WXWIN_COMPATIBILITY_2_4
 384               , m_commandString(this)
 385 #endif
 386 {
 387     m_clientData = (char *) NULL;
 388     m_clientObject = (wxClientData *) NULL;
 389     m_extraLong = 0;
 390     m_commandInt = 0;
 391     m_isCommandEvent = true;
 392
 393     // the command events are propagated upwards by default
 394     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 395 }
 396
 397 #ifdef __VISUALC__
 398     #pragma warning(default:4355)
 399 #endif
 400
 401 wxString wxCommandEvent::GetString() const
 402 {
 403     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 404         return m_cmdString;
 405     else
 406     {
 407 #if wxUSE_TEXTCTRL
 408         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 409         if(txt)
 410             return txt->GetValue();
 411         else
 412 #endif // wxUSE_TEXTCTRL
 413             return m_cmdString;
 414     }
 415 }
 416
 417 /*
 418  * UI update events
 419  */
 420
 421 #if wxUSE_LONGLONG
 422 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 423 #endif
 424
 425 long wxUpdateUIEvent::sm_updateInterval = 0;
 426
 427 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 428
 429 // Can we update?
 430 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 431 {
 432     // Don't update if we've switched global updating off
 433     // and this window doesn't support updates.
 434     if (win &&
 435        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 436        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 437         return false;
 438
 439     if (sm_updateInterval == -1)
 440         return false;
 441
 442     if (sm_updateInterval == 0)
 443         return true;
 444
 445 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 446     wxLongLong now = wxGetLocalTimeMillis();
 447     if (now > (sm_lastUpdate + sm_updateInterval))
 448     {
 449         return true;
 450     }
 451
 452     return false;
 453 #else
 454     // If we don't have wxStopWatch or wxLongLong, we
 455     // should err on the safe side and update now anyway.
 456     return true;
 457 #endif
 458 }
 459
 460 // Reset the update time to provide a delay until the next
 461 // time we should update
 462 void wxUpdateUIEvent::ResetUpdateTime()
 463 {
 464 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 465     if (sm_updateInterval > 0)
 466     {
 467         wxLongLong now = wxGetLocalTimeMillis();
 468         if (now > (sm_lastUpdate + sm_updateInterval))
 469         {
 470             sm_lastUpdate = now;
 471         }
 472     }
 473 #endif
 474 }
 475
 476 /*
 477  * Idle events
 478  */
 479
 480 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 481
 482 // Can we send an idle event?
 483 bool wxIdleEvent::CanSend(wxWindow* win)
 484 {
 485     // Don't update if we've switched global updating off
 486     // and this window doesn't support updates.
 487     if (win &&
 488        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 489        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 490         return false;
 491
 492     return true;
 493 }
 494
 495 /*
 496  * Scroll events
 497  */
 498
 499 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 500                              int id,
 501                              int pos,
 502                              int orient)
 503     : wxCommandEvent(commandType, id)
 504 {
 505     m_extraLong = orient;
 506     m_commandInt = pos;
 507 }
 508
 509 /*
 510  * ScrollWin events
 511  */
 512
 513 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 514                                    int pos,
 515                                    int orient)
 516 {
 517     m_eventType = commandType;
 518     m_extraLong = orient;
 519     m_commandInt = pos;
 520 }
 521
 522 /*
 523  * Mouse events
 524  *
 525  */
 526
 527 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 528 {
 529     m_eventType = commandType;
 530     m_metaDown = false;
 531     m_altDown = false;
 532     m_controlDown = false;
 533     m_shiftDown = false;
 534     m_leftDown = false;
 535     m_rightDown = false;
 536     m_middleDown = false;
 537     m_x = 0;
 538     m_y = 0;
 539     m_wheelRotation = 0;
 540     m_wheelDelta = 0;
 541     m_linesPerAction = 0;
 542     m_wheelAxis = 0;
 543 }
 544
 545 void wxMouseEvent::Assign(const wxMouseEvent& event)
 546 {
 547     m_eventType = event.m_eventType;
 548
 549     m_x = event.m_x;
 550     m_y = event.m_y;
 551
 552     m_leftDown = event.m_leftDown;
 553     m_middleDown = event.m_middleDown;
 554     m_rightDown = event.m_rightDown;
 555
 556     m_controlDown = event.m_controlDown;
 557     m_shiftDown = event.m_shiftDown;
 558     m_altDown = event.m_altDown;
 559     m_metaDown = event.m_metaDown;
 560
 561     m_wheelRotation = event.m_wheelRotation;
 562     m_wheelDelta = event.m_wheelDelta;
 563     m_linesPerAction = event.m_linesPerAction;
 564     m_wheelAxis = event.m_wheelAxis;
 565 }
 566
 567 // return true if was a button dclick event
 568 bool wxMouseEvent::ButtonDClick(int but) const
 569 {
 570     switch (but)
 571     {
 572         default:
 573             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 574             // fall through
 575
 576         case wxMOUSE_BTN_ANY:
 577             return (LeftDClick() || MiddleDClick() || RightDClick());
 578
 579         case wxMOUSE_BTN_LEFT:
 580             return LeftDClick();
 581
 582         case wxMOUSE_BTN_MIDDLE:
 583             return MiddleDClick();
 584
 585         case wxMOUSE_BTN_RIGHT:
 586             return RightDClick();
 587     }
 588 }
 589
 590 // return true if was a button down event
 591 bool wxMouseEvent::ButtonDown(int but) const
 592 {
 593     switch (but)
 594     {
 595         default:
 596             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 597             // fall through
 598
 599         case wxMOUSE_BTN_ANY:
 600             return (LeftDown() || MiddleDown() || RightDown());
 601
 602         case wxMOUSE_BTN_LEFT:
 603             return LeftDown();
 604
 605         case wxMOUSE_BTN_MIDDLE:
 606             return MiddleDown();
 607
 608         case wxMOUSE_BTN_RIGHT:
 609             return RightDown();
 610     }
 611 }
 612
 613 // return true if was a button up event
 614 bool wxMouseEvent::ButtonUp(int but) const
 615 {
 616     switch (but)
 617     {
 618         default:
 619             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 620             // fall through
 621
 622         case wxMOUSE_BTN_ANY:
 623             return (LeftUp() || MiddleUp() || RightUp());
 624
 625         case wxMOUSE_BTN_LEFT:
 626             return LeftUp();
 627
 628         case wxMOUSE_BTN_MIDDLE:
 629             return MiddleUp();
 630
 631         case wxMOUSE_BTN_RIGHT:
 632             return RightUp();
 633     }
 634 }
 635
 636 // return true if the given button is currently changing state
 637 bool wxMouseEvent::Button(int but) const
 638 {
 639     switch (but)
 640     {
 641         default:
 642             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 643             // fall through
 644
 645         case wxMOUSE_BTN_ANY:
 646             return ButtonUp(wxMOUSE_BTN_ANY) ||
 647                     ButtonDown(wxMOUSE_BTN_ANY) ||
 648                         ButtonDClick(wxMOUSE_BTN_ANY);
 649
 650         case wxMOUSE_BTN_LEFT:
 651             return LeftDown() || LeftUp() || LeftDClick();
 652
 653         case wxMOUSE_BTN_MIDDLE:
 654             return MiddleDown() || MiddleUp() || MiddleDClick();
 655
 656         case wxMOUSE_BTN_RIGHT:
 657             return RightDown() || RightUp() || RightDClick();
 658     }
 659 }
 660
 661 bool wxMouseEvent::ButtonIsDown(int but) const
 662 {
 663     switch (but)
 664     {
 665         default:
 666             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 667             // fall through
 668
 669         case wxMOUSE_BTN_ANY:
 670             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 671
 672         case wxMOUSE_BTN_LEFT:
 673             return LeftIsDown();
 674
 675         case wxMOUSE_BTN_MIDDLE:
 676             return MiddleIsDown();
 677
 678         case wxMOUSE_BTN_RIGHT:
 679             return RightIsDown();
 680     }
 681 }
 682
 683 int wxMouseEvent::GetButton() const
 684 {
 685     for ( int i = 1; i <= 3; i++ )
 686     {
 687         if ( Button(i) )
 688         {
 689             return i;
 690         }
 691     }
 692
 693     return wxMOUSE_BTN_NONE;
 694 }
 695
 696 // Find the logical position of the event given the DC
 697 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 698 {
 699     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 700     return pt;
 701 }
 702
 703
 704 /*
 705  * Keyboard event
 706  *
 707  */
 708
 709 wxKeyEvent::wxKeyEvent(wxEventType type)
 710 {
 711     m_eventType = type;
 712     m_shiftDown = false;
 713     m_controlDown = false;
 714     m_metaDown = false;
 715     m_altDown = false;
 716     m_keyCode = 0;
 717     m_scanCode = 0;
 718 #if wxUSE_UNICODE
 719     m_uniChar = 0;
 720 #endif
 721 }
 722
 723 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 724     : wxEvent(evt)
 725 {
 726     m_x = evt.m_x;
 727     m_y = evt.m_y;
 728
 729     m_keyCode = evt.m_keyCode;
 730
 731     m_controlDown = evt.m_controlDown;
 732     m_shiftDown = evt.m_shiftDown;
 733     m_altDown = evt.m_altDown;
 734     m_metaDown = evt.m_metaDown;
 735     m_scanCode = evt.m_scanCode;
 736     m_rawCode = evt.m_rawCode;
 737     m_rawFlags = evt.m_rawFlags;
 738
 739 #if wxUSE_UNICODE
 740     m_uniChar = evt.m_uniChar;
 741 #endif
 742 }
 743
 744 #if WXWIN_COMPATIBILITY_2_6
 745 long wxKeyEvent::KeyCode() const
 746 {
 747     return m_keyCode;
 748 }
 749 #endif // WXWIN_COMPATIBILITY_2_6
 750
 751 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 752 {
 753     SetEventType(wxEVT_CREATE);
 754     SetEventObject(win);
 755 }
 756
 757 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 758 {
 759     SetEventType(wxEVT_DESTROY);
 760     SetEventObject(win);
 761 }
 762
 763 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 764                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 765 {
 766     SetEventObject(win);
 767 }
 768
 769 // ----------------------------------------------------------------------------
 770 // wxHelpEvent
 771 // ----------------------------------------------------------------------------
 772
 773 /* static */
 774 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 775 {
 776     if ( origin == Origin_Unknown )
 777     {
 778         // assume that the event comes from the help button if it's not from
 779         // keyboard and that pressing F1 always results in the help event
 780         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 781     }
 782
 783     return origin;
 784 }
 785
 786 #endif // wxUSE_GUI
 787
 788
 789 #if wxUSE_BASE
 790
 791 // ----------------------------------------------------------------------------
 792 // wxEventHashTable
 793 // ----------------------------------------------------------------------------
 794
 795 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 796
 797 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 798
 799 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 800                 : m_table(table),
 801                   m_rebuildHash(true)
 802 {
 803     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 804
 805     m_next = sm_first;
 806     if (m_next)
 807         m_next->m_previous = this;
 808     sm_first = this;
 809 }
 810
 811 wxEventHashTable::~wxEventHashTable()
 812 {
 813     if (m_next)
 814         m_next->m_previous = m_previous;
 815     if (m_previous)
 816         m_previous->m_next = m_next;
 817     if (sm_first == this)
 818         sm_first = m_next;
 819
 820     Clear();
 821 }
 822
 823 void wxEventHashTable::Clear()
 824 {
 825     size_t i;
 826     for(i = 0; i < m_size; i++)
 827     {
 828         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 829         if (eTTnode)
 830         {
 831             delete eTTnode;
 832         }
 833     }
 834
 835     // Necessary in order to not invoke the
 836     // overloaded delete operator when statics are cleaned up
 837     if (m_eventTypeTable)
 838         delete[] m_eventTypeTable;
 839
 840     m_eventTypeTable = NULL;
 841     m_size = 0;
 842 }
 843
 844 // Clear all tables
 845 void wxEventHashTable::ClearAll()
 846 {
 847     wxEventHashTable* table = sm_first;
 848     while (table)
 849     {
 850         table->Clear();
 851         table = table->m_next;
 852     }
 853 }
 854
 855 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 856 {
 857     if (m_rebuildHash)
 858     {
 859         InitHashTable();
 860         m_rebuildHash = false;
 861     }
 862
 863     if (!m_eventTypeTable)
 864         return false;
 865
 866     // Find all entries for the given event type.
 867     wxEventType eventType = event.GetEventType();
 868     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 869     if (eTTnode && eTTnode->eventType == eventType)
 870     {
 871         // Now start the search for an event handler
 872         // that can handle an event with the given ID.
 873         const wxEventTableEntryPointerArray&
 874             eventEntryTable = eTTnode->eventEntryTable;
 875
 876         const size_t count = eventEntryTable.GetCount();
 877         for (size_t n = 0; n < count; n++)
 878         {
 879             if ( wxEvtHandler::
 880                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 881             {
 882                 return true;
 883             }
 884         }
 885     }
 886
 887     return false;
 888 }
 889
 890 void wxEventHashTable::InitHashTable()
 891 {
 892     // Loop over the event tables and all its base tables.
 893     const wxEventTable *table = &m_table;
 894     while (table)
 895     {
 896         // Retrieve all valid event handler entries
 897         const wxEventTableEntry *entry = table->entries;
 898         while (entry->m_fn != 0)
 899         {
 900             // Add the event entry in the Hash.
 901             AddEntry(*entry);
 902
 903             entry++;
 904         }
 905
 906         table = table->baseTable;
 907     }
 908
 909     // Lets free some memory.
 910     size_t i;
 911     for(i = 0; i < m_size; i++)
 912     {
 913         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 914         if (eTTnode)
 915         {
 916             eTTnode->eventEntryTable.Shrink();
 917         }
 918     }
 919 }
 920
 921 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 922 {
 923     // This might happen 'accidentally' as the app is exiting
 924     if (!m_eventTypeTable)
 925         return;
 926
 927     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 928     EventTypeTablePointer  eTTnode = *peTTnode;
 929
 930     if (eTTnode)
 931     {
 932         if (eTTnode->eventType != entry.m_eventType)
 933         {
 934             // Resize the table!
 935             GrowEventTypeTable();
 936             // Try again to add it.
 937             AddEntry(entry);
 938             return;
 939         }
 940     }
 941     else
 942     {
 943         eTTnode = new EventTypeTable;
 944         eTTnode->eventType = entry.m_eventType;
 945         *peTTnode = eTTnode;
 946     }
 947
 948     // Fill all hash entries between entry.m_id and entry.m_lastId...
 949     eTTnode->eventEntryTable.Add(&entry);
 950 }
 951
 952 void wxEventHashTable::AllocEventTypeTable(size_t size)
 953 {
 954     m_eventTypeTable = new EventTypeTablePointer[size];
 955     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 956     m_size = size;
 957 }
 958
 959 void wxEventHashTable::GrowEventTypeTable()
 960 {
 961     size_t oldSize = m_size;
 962     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 963
 964     // TODO: Search the most optimal grow sequence
 965     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 966
 967     for ( size_t i = 0; i < oldSize; /* */ )
 968     {
 969         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 970         if (eTToldNode)
 971         {
 972             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 973             EventTypeTablePointer  eTTnode = *peTTnode;
 974
 975             // Check for collision, we don't want any.
 976             if (eTTnode)
 977             {
 978                 GrowEventTypeTable();
 979                 continue; // Don't increment the counter,
 980                           // as we still need to add this element.
 981             }
 982             else
 983             {
 984                 // Get the old value and put it in the new table.
 985                 *peTTnode = oldEventTypeTable[i];
 986             }
 987         }
 988
 989         i++;
 990     }
 991
 992     delete[] oldEventTypeTable;
 993 }
 994
 995
 996 // ----------------------------------------------------------------------------
 997 // wxEvtHandler
 998 // ----------------------------------------------------------------------------
 999
1000 /*
1001  * Event handler
1002  */
1003
1004 wxEvtHandler::wxEvtHandler()
1005 {
1006     m_nextHandler = (wxEvtHandler *) NULL;
1007     m_previousHandler = (wxEvtHandler *) NULL;
1008     m_enabled = true;
1009     m_dynamicEvents = (wxList *) NULL;
1010     m_pendingEvents = (wxList *) NULL;
1011 #if wxUSE_THREADS
1012 #  if !defined(__VISAGECPP__)
1013     m_eventsLocker = new wxCriticalSection;
1014 #  endif
1015 #endif
1016
1017     // no client data (yet)
1018     m_clientData = NULL;
1019     m_clientDataType = wxClientData_None;
1020 }
1021
1022 wxEvtHandler::~wxEvtHandler()
1023 {
1024     // Takes itself out of the list of handlers
1025     if (m_previousHandler)
1026         m_previousHandler->m_nextHandler = m_nextHandler;
1027
1028     if (m_nextHandler)
1029         m_nextHandler->m_previousHandler = m_previousHandler;
1030
1031     if (m_dynamicEvents)
1032     {
1033         wxList::iterator it = m_dynamicEvents->begin(),
1034                          en = m_dynamicEvents->end();
1035         for (;it != en; ++it)
1036         {
1037 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1038             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1039 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1040             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1041 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1042
1043             if (entry->m_callbackUserData)
1044                 delete entry->m_callbackUserData;
1045             delete entry;
1046         }
1047         delete m_dynamicEvents;
1048     };
1049
1050     if (m_pendingEvents)
1051         m_pendingEvents->DeleteContents(true);
1052     delete m_pendingEvents;
1053
1054 #if wxUSE_THREADS
1055 #  if !defined(__VISAGECPP__)
1056     delete m_eventsLocker;
1057 #  endif
1058
1059     // Remove us from wxPendingEvents if necessary.
1060     if(wxPendingEventsLocker)
1061         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1062     if ( wxPendingEvents )
1063     {
1064         // Delete all occurences of this from the list of pending events
1065         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1066     }
1067     if(wxPendingEventsLocker)
1068         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1069 #endif
1070
1071     // we only delete object data, not untyped
1072     if ( m_clientDataType == wxClientData_Object )
1073         delete m_clientObject;
1074 }
1075
1076 #if wxUSE_THREADS
1077
1078 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1079 {
1080     // check that we are really in a child thread
1081     wxASSERT_MSG( !wxThread::IsMain(),
1082                   wxT("use ProcessEvent() in main thread") );
1083
1084     AddPendingEvent(event);
1085
1086     return true;
1087 }
1088
1089 void wxEvtHandler::ClearEventLocker()
1090 {
1091 #if !defined(__VISAGECPP__)
1092     delete m_eventsLocker;
1093     m_eventsLocker = NULL;
1094 #endif
1095 }
1096
1097 #endif // wxUSE_THREADS
1098
1099 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1100 {
1101     // 1) Add event to list of pending events of this event handler
1102
1103     wxEvent *eventCopy = event.Clone();
1104
1105     // we must be able to copy the events here so the event class must
1106     // implement Clone() properly instead of just providing a NULL stab for it
1107     wxCHECK_RET( eventCopy,
1108                  _T("events of this type aren't supposed to be posted") );
1109
1110     wxENTER_CRIT_SECT( Lock() );
1111
1112     if ( !m_pendingEvents )
1113       m_pendingEvents = new wxList;
1114
1115     m_pendingEvents->Append(eventCopy);
1116
1117     wxLEAVE_CRIT_SECT( Lock() );
1118
1119     // 2) Add this event handler to list of event handlers that
1120     //    have pending events.
1121
1122     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1123
1124     if ( !wxPendingEvents )
1125         wxPendingEvents = new wxList;
1126     wxPendingEvents->Append(this);
1127
1128     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1129
1130     // 3) Inform the system that new pending events are somewhere,
1131     //    and that these should be processed in idle time.
1132     wxWakeUpIdle();
1133 }
1134
1135 void wxEvtHandler::ProcessPendingEvents()
1136 {
1137     // this method is only called by wxApp if this handler does have
1138     // pending events
1139     wxCHECK_RET( m_pendingEvents,
1140                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1141
1142     wxENTER_CRIT_SECT( Lock() );
1143
1144     // we leave the loop once we have processed all events that were present at
1145     // the start of ProcessPendingEvents because otherwise we could get into
1146     // infinite loop if the pending event handler execution resulted in another
1147     // event being posted
1148     size_t n = m_pendingEvents->size();
1149     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1150           node;
1151           node = m_pendingEvents->GetFirst() )
1152     {
1153         wxEvent *event = (wxEvent *)node->GetData();
1154
1155         // It's importan we remove event from list before processing it.
1156         // Else a nested event loop, for example from a modal dialog, might
1157         // process the same event again.
1158
1159         m_pendingEvents->Erase(node);
1160
1161         wxLEAVE_CRIT_SECT( Lock() );
1162
1163         ProcessEvent(*event);
1164
1165         delete event;
1166
1167         wxENTER_CRIT_SECT( Lock() );
1168
1169         if ( --n == 0 )
1170             break;
1171     }
1172
1173     wxLEAVE_CRIT_SECT( Lock() );
1174 }
1175
1176 /*
1177  * Event table stuff
1178  */
1179 /* static */ bool
1180 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1181                                     wxEvtHandler *handler,
1182                                     wxEvent& event)
1183 {
1184     int tableId1 = entry.m_id,
1185         tableId2 = entry.m_lastId;
1186
1187     // match only if the event type is the same and the id is either -1 in
1188     // the event table (meaning "any") or the event id matches the id
1189     // specified in the event table either exactly or by falling into
1190     // range between first and last
1191     if ((tableId1 == wxID_ANY) ||
1192         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1193         (tableId2 != wxID_ANY &&
1194          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1195     {
1196         event.Skip(false);
1197         event.m_callbackUserData = entry.m_callbackUserData;
1198
1199 #if wxUSE_EXCEPTIONS
1200         if ( wxTheApp )
1201         {
1202             // call the handler via wxApp method which allows the user to catch
1203             // any exceptions which may be thrown by any handler in the program
1204             // in one place
1205             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1206         }
1207         else
1208 #endif // wxUSE_EXCEPTIONS
1209         {
1210             // no need for an extra virtual function call
1211             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1212         }
1213
1214         if (!event.GetSkipped())
1215             return true;
1216     }
1217
1218     return false;
1219 }
1220
1221 bool wxEvtHandler::TryParent(wxEvent& event)
1222 {
1223     if ( wxTheApp && (this != wxTheApp) )
1224     {
1225         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1226         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1227         // processed appropriately via SearchEventTable.
1228         if ( event.GetEventType() != wxEVT_IDLE )
1229         {
1230             if ( wxTheApp->ProcessEvent(event) )
1231                 return true;
1232         }
1233     }
1234
1235     return false;
1236 }
1237
1238 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1239 {
1240     // allow the application to hook into event processing
1241     if ( wxTheApp )
1242     {
1243         int rc = wxTheApp->FilterEvent(event);
1244         if ( rc != -1 )
1245         {
1246             wxASSERT_MSG( rc == 1 || rc == 0,
1247                           _T("unexpected wxApp::FilterEvent return value") );
1248
1249             return rc != 0;
1250         }
1251         //else: proceed normally
1252     }
1253
1254     // An event handler can be enabled or disabled
1255     if ( GetEvtHandlerEnabled() )
1256     {
1257         // if we have a validator, it has higher priority than our own event
1258         // table
1259         if ( TryValidator(event) )
1260             return true;
1261
1262         // Handle per-instance dynamic event tables first
1263         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1264             return true;
1265
1266         // Then static per-class event tables
1267         if ( GetEventHashTable().HandleEvent(event, this) )
1268             return true;
1269     }
1270
1271     // Try going down the event handler chain
1272     if ( GetNextHandler() )
1273     {
1274         if ( GetNextHandler()->ProcessEvent(event) )
1275             return true;
1276     }
1277
1278     // Finally propagate the event upwards the window chain and/or to the
1279     // application object as necessary
1280     return TryParent(event);
1281 }
1282
1283
1284 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1285 {
1286     const wxEventType eventType = event.GetEventType();
1287     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1288     {
1289         const wxEventTableEntry& entry = table.entries[i];
1290         if ( eventType == entry.m_eventType )
1291         {
1292             if ( ProcessEventIfMatches(entry, this, event) )
1293                 return true;
1294         }
1295     }
1296
1297     return false;
1298 }
1299
1300 void wxEvtHandler::Connect( int id, int lastId,
1301                             int eventType,
1302                             wxObjectEventFunction func,
1303                             wxObject *userData,
1304                             wxEvtHandler* eventSink )
1305 {
1306 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1307     wxEventTableEntry *entry = new wxEventTableEntry;
1308     entry->m_eventType = eventType;
1309     entry->m_id = id;
1310     entry->m_lastId = lastId;
1311     entry->m_fn = func;
1312     entry->m_callbackUserData = userData;
1313 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1314     wxDynamicEventTableEntry *entry =
1315         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1316 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1317
1318     if (!m_dynamicEvents)
1319         m_dynamicEvents = new wxList;
1320
1321     // Insert at the front of the list so most recent additions are found first
1322     m_dynamicEvents->Insert( (wxObject*) entry );
1323 }
1324
1325 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1326                   wxObjectEventFunction func,
1327                   wxObject *userData,
1328                   wxEvtHandler* eventSink )
1329 {
1330     if (!m_dynamicEvents)
1331         return false;
1332
1333     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1334     while (node)
1335     {
1336 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1337             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1338 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1339             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1340 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1341
1342         if ((entry->m_id == id) &&
1343             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1344             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1345             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1346             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1347             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1348         {
1349             if (entry->m_callbackUserData)
1350                 delete entry->m_callbackUserData;
1351             m_dynamicEvents->Erase( node );
1352             delete entry;
1353             return true;
1354         }
1355         node = node->GetNext();
1356     }
1357     return false;
1358 }
1359
1360 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1361 {
1362     wxCHECK_MSG( m_dynamicEvents, false,
1363                  wxT("caller should check that we have dynamic events") );
1364
1365     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1366     while (node)
1367     {
1368 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1369         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1370 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1371         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1372 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1373
1374         // get next node before (maybe) calling the event handler as it could
1375         // call Disconnect() invalidating the current node
1376         node = node->GetNext();
1377
1378         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1379         {
1380             wxEvtHandler *handler =
1381 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1382                                     entry->m_eventSink ? entry->m_eventSink
1383                                                        :
1384 #endif
1385                                                          this;
1386
1387             if ( ProcessEventIfMatches(*entry, handler, event) )
1388             {
1389                 return true;
1390             }
1391         }
1392     }
1393
1394     return false;
1395 }
1396
1397 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1398 {
1399     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1400                   wxT("can't have both object and void client data") );
1401
1402     if ( m_clientObject )
1403         delete m_clientObject;
1404
1405     m_clientObject = data;
1406     m_clientDataType = wxClientData_Object;
1407 }
1408
1409 wxClientData *wxEvtHandler::DoGetClientObject() const
1410 {
1411     // it's not an error to call GetClientObject() on a window which doesn't
1412     // have client data at all - NULL will be returned
1413     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1414                   wxT("this window doesn't have object client data") );
1415
1416     return m_clientObject;
1417 }
1418
1419 void wxEvtHandler::DoSetClientData( void *data )
1420 {
1421     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1422                   wxT("can't have both object and void client data") );
1423
1424     m_clientData = data;
1425     m_clientDataType = wxClientData_Void;
1426 }
1427
1428 void *wxEvtHandler::DoGetClientData() const
1429 {
1430     // it's not an error to call GetClientData() on a window which doesn't have
1431     // client data at all - NULL will be returned
1432     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1433                   wxT("this window doesn't have void client data") );
1434
1435     return m_clientData;
1436 }
1437
1438 #endif // wxUSE_BASE
1439
1440 #if wxUSE_GUI
1441
1442 // Find a window with the focus, that is also a descendant of the given window.
1443 // This is used to determine the window to initially send commands to.
1444 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1445 {
1446     // Process events starting with the window with the focus, if any.
1447     wxWindow* focusWin = wxWindow::FindFocus();
1448     wxWindow* win = focusWin;
1449
1450     // Check if this is a descendant of this frame.
1451     // If not, win will be set to NULL.
1452     while (win)
1453     {
1454         if (win == ancestor)
1455             break;
1456         else
1457             win = win->GetParent();
1458     }
1459     if (win == (wxWindow*) NULL)
1460         focusWin = (wxWindow*) NULL;
1461
1462     return focusWin;
1463 }
1464
1465 // ----------------------------------------------------------------------------
1466 // wxEventBlocker
1467 // ----------------------------------------------------------------------------
1468
1469 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1470 {
1471     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1472
1473     m_window = win;
1474
1475     Block(type);
1476     m_window->PushEventHandler(this);
1477 }
1478
1479 wxEventBlocker::~wxEventBlocker()
1480 {
1481     wxEvtHandler *popped = m_window->PopEventHandler(false);
1482     wxCHECK_RET(popped == this,
1483         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1484 }
1485
1486 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1487 {
1488     // should this event be blocked?
1489     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1490     {
1491         wxEventType t = (wxEventType)m_eventsToBlock[i];
1492         if ( t == wxEVT_ANY || t == event.GetEventType() )
1493             return true;   // yes, it should: mark this event as processed
1494     }
1495
1496     return false;
1497 }
1498
1499 #endif // wxUSE_GUI