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 #include "wx/evtloop.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/list.h"
  32     #include "wx/app.h"
  33     #include "wx/utils.h"
  34     #include "wx/stopwatch.h"
  35     #include "wx/module.h"
  36
  37     #if wxUSE_GUI
  38         #include "wx/window.h"
  39         #include "wx/control.h"
  40         #include "wx/dc.h"
  41         #include "wx/textctrl.h"
  42         #include "wx/validate.h"
  43     #endif // wxUSE_GUI
  44 #endif
  45
  46 #include "wx/thread.h"
  47 #include "wx/ptr_scpd.h"
  48
  49 wxDECLARE_SCOPED_PTR(wxEvent, wxEventPtr)
  50 wxDEFINE_SCOPED_PTR(wxEvent, wxEventPtr)
  51
  52 // ----------------------------------------------------------------------------
  53 // wxWin macros
  54 // ----------------------------------------------------------------------------
  55
  56 #if wxUSE_BASE
  57     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  58     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  59     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  60 #endif // wxUSE_BASE
  61
  62 #if wxUSE_GUI
  63     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  96     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  97     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
  98     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  99 #endif // wxUSE_GUI
 100
 101 #if wxUSE_BASE
 102
 103 const wxEventTable *wxEvtHandler::GetEventTable() const
 104     { return &wxEvtHandler::sm_eventTable; }
 105
 106 const wxEventTable wxEvtHandler::sm_eventTable =
 107     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 108
 109 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 110     { return wxEvtHandler::sm_eventHashTable; }
 111
 112 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 113
 114 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 115     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 116
 117
 118 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 119 // leaked, so we need to manually clean up all event tables before checking for
 120 // the memory leaks when using it, however this breaks re-initializing the
 121 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 122 // event tables won't be rebuilt the next time, so disable this by default
 123 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 124
 125 class wxEventTableEntryModule: public wxModule
 126 {
 127 public:
 128     wxEventTableEntryModule() { }
 129     virtual bool OnInit() { return true; }
 130     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 131
 132     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 133 };
 134
 135 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 136
 137 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 138
 139 // ----------------------------------------------------------------------------
 140 // global variables
 141 // ----------------------------------------------------------------------------
 142
 143 // List containing event handlers with pending events (each handler can occur
 144 // at most once here)
 145 wxList *wxPendingEvents = NULL;
 146
 147 #if wxUSE_THREADS
 148     // protects wxPendingEvents list
 149     wxCriticalSection *wxPendingEventsLocker = NULL;
 150 #endif
 151
 152 // common event types are defined here, other event types are defined by the
 153 // components which use them
 154
 155 const wxEventType wxEVT_FIRST = 10000;
 156 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 157
 158 DEFINE_EVENT_TYPE(wxEVT_NULL)
 159 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 160 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 161 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 162
 163 #endif // wxUSE_BASE
 164
 165 #if wxUSE_GUI
 166
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 183 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
 184
 185 // Mouse event types
 186 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 187 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 188 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 189 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 190 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 191 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 192 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 193 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 194 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 195 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 196 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 197 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 198 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 199 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 200 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 201 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 202 DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
 203 DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
 204 DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
 205 DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
 206 DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
 207 DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
 208
 209 // Non-client mouse events
 210 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 211 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 213 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 220 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 221 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 222
 223 // Character input event type
 224 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 225 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 226 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 227 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 228 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 229 #if wxUSE_HOTKEY
 230 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 231 #endif
 232
 233 // Set cursor event
 234 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 235
 236 // wxScrollbar and wxSlider event identifiers
 237 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 246
 247 // Scroll events from wxWindow
 248 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 249 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 254 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 255 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 256
 257 // System events
 258 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 259 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 260 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 261 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 262 DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
 263 DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
 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_HIBERNATE)
 268 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 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_MOUSE_CAPTURE_LOST)
 277 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 278 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 279 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 280 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 281 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 282 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 283 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 284 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 285 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 286 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 287 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 288 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 289 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 290 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 291 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 292 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 293 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 294 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 295 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 296 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 297 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 298 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 299 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 300
 301 // Clipboard events
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 304 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 305
 306 // Generic command events
 307 // Note: a click is a higher-level event than button down/up
 308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 309 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 313 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 314 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 315
 316 // Help events
 317 DEFINE_EVENT_TYPE(wxEVT_HELP)
 318 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 319
 320 #endif // wxUSE_GUI
 321
 322 #if wxUSE_BASE
 323
 324 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 325
 326 // ============================================================================
 327 // implementation
 328 // ============================================================================
 329
 330 // ----------------------------------------------------------------------------
 331 // event initialization
 332 // ----------------------------------------------------------------------------
 333
 334 int wxNewEventType()
 335 {
 336     // MT-FIXME
 337     static int s_lastUsedEventType = wxEVT_FIRST;
 338
 339     return s_lastUsedEventType++;
 340 }
 341
 342 // ----------------------------------------------------------------------------
 343 // wxEvent
 344 // ----------------------------------------------------------------------------
 345
 346 /*
 347  * General wxWidgets events, covering
 348  * all interesting things that might happen (button clicking, resizing,
 349  * setting text in widgets, etc.).
 350  *
 351  * For each completely new event type, derive a new event class.
 352  *
 353  */
 354
 355 wxEvent::wxEvent(int theId, wxEventType commandType )
 356 {
 357     m_eventType = commandType;
 358     m_eventObject = (wxObject *) NULL;
 359     m_timeStamp = 0;
 360     m_id = theId;
 361     m_skipped = false;
 362     m_callbackUserData = (wxObject *) NULL;
 363     m_isCommandEvent = false;
 364     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 365 }
 366
 367 wxEvent::wxEvent(const wxEvent &src)
 368     : wxObject(src)
 369     , m_eventObject(src.m_eventObject)
 370     , m_eventType(src.m_eventType)
 371     , m_timeStamp(src.m_timeStamp)
 372     , m_id(src.m_id)
 373     , m_callbackUserData(src.m_callbackUserData)
 374     , m_propagationLevel(src.m_propagationLevel)
 375     , m_skipped(src.m_skipped)
 376     , m_isCommandEvent(src.m_isCommandEvent)
 377 {
 378 }
 379
 380 #endif // wxUSE_BASE
 381
 382 #if wxUSE_GUI
 383
 384 /*
 385  * Command events
 386  *
 387  */
 388
 389 #ifdef __VISUALC__
 390     // 'this' : used in base member initializer list (for m_commandString)
 391     #pragma warning(disable:4355)
 392 #endif
 393
 394 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 395               : wxEvent(theId, commandType)
 396 {
 397     m_clientData = (char *) NULL;
 398     m_clientObject = (wxClientData *) NULL;
 399     m_extraLong = 0;
 400     m_commandInt = 0;
 401     m_isCommandEvent = true;
 402
 403     // the command events are propagated upwards by default
 404     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 405 }
 406
 407 #ifdef __VISUALC__
 408     #pragma warning(default:4355)
 409 #endif
 410
 411 wxString wxCommandEvent::GetString() const
 412 {
 413     if (m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 414     {
 415         return m_cmdString;
 416     }
 417     else
 418     {
 419 #if wxUSE_TEXTCTRL
 420         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 421         if ( txt )
 422             return txt->GetValue();
 423         else
 424 #endif // wxUSE_TEXTCTRL
 425             return m_cmdString;
 426     }
 427 }
 428
 429 /*
 430  * UI update events
 431  */
 432
 433 #if wxUSE_LONGLONG
 434 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 435 #endif
 436
 437 long wxUpdateUIEvent::sm_updateInterval = 0;
 438
 439 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 440
 441 // Can we update?
 442 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 443 {
 444     // Don't update if we've switched global updating off
 445     // and this window doesn't support updates.
 446     if (win &&
 447        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 448        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 449         return false;
 450
 451     if (sm_updateInterval == -1)
 452         return false;
 453
 454     if (sm_updateInterval == 0)
 455         return true;
 456
 457 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 458     wxLongLong now = wxGetLocalTimeMillis();
 459     if (now > (sm_lastUpdate + sm_updateInterval))
 460     {
 461         return true;
 462     }
 463
 464     return false;
 465 #else
 466     // If we don't have wxStopWatch or wxLongLong, we
 467     // should err on the safe side and update now anyway.
 468     return true;
 469 #endif
 470 }
 471
 472 // Reset the update time to provide a delay until the next
 473 // time we should update
 474 void wxUpdateUIEvent::ResetUpdateTime()
 475 {
 476 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 477     if (sm_updateInterval > 0)
 478     {
 479         wxLongLong now = wxGetLocalTimeMillis();
 480         if (now > (sm_lastUpdate + sm_updateInterval))
 481         {
 482             sm_lastUpdate = now;
 483         }
 484     }
 485 #endif
 486 }
 487
 488 /*
 489  * Scroll events
 490  */
 491
 492 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 493                              int id,
 494                              int pos,
 495                              int orient)
 496     : wxCommandEvent(commandType, id)
 497 {
 498     m_extraLong = orient;
 499     m_commandInt = pos;
 500 }
 501
 502 /*
 503  * ScrollWin events
 504  */
 505
 506 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 507                                    int pos,
 508                                    int orient)
 509 {
 510     m_eventType = commandType;
 511     m_extraLong = orient;
 512     m_commandInt = pos;
 513 }
 514
 515 /*
 516  * Mouse events
 517  *
 518  */
 519
 520 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 521 {
 522     m_eventType = commandType;
 523
 524     m_x = 0;
 525     m_y = 0;
 526
 527     m_leftDown = false;
 528     m_middleDown = false;
 529     m_rightDown = false;
 530     m_aux1Down = false;
 531     m_aux2Down = false;
 532
 533     m_controlDown = false;
 534     m_shiftDown = false;
 535     m_altDown = false;
 536     m_metaDown = false;
 537
 538     m_clickCount = -1;
 539
 540     m_wheelRotation = 0;
 541     m_wheelDelta = 0;
 542     m_linesPerAction = 0;
 543     m_wheelAxis = 0;
 544 }
 545
 546 void wxMouseEvent::Assign(const wxMouseEvent& event)
 547 {
 548     m_eventType = event.m_eventType;
 549
 550     m_x = event.m_x;
 551     m_y = event.m_y;
 552
 553     m_leftDown = event.m_leftDown;
 554     m_middleDown = event.m_middleDown;
 555     m_rightDown = event.m_rightDown;
 556     m_aux1Down = event.m_aux1Down;
 557     m_aux2Down = event.m_aux2Down;
 558
 559     m_controlDown = event.m_controlDown;
 560     m_shiftDown = event.m_shiftDown;
 561     m_altDown = event.m_altDown;
 562     m_metaDown = event.m_metaDown;
 563
 564     m_wheelRotation = event.m_wheelRotation;
 565     m_wheelDelta = event.m_wheelDelta;
 566     m_linesPerAction = event.m_linesPerAction;
 567     m_wheelAxis = event.m_wheelAxis;
 568 }
 569
 570 // return true if was a button dclick event
 571 bool wxMouseEvent::ButtonDClick(int but) const
 572 {
 573     switch (but)
 574     {
 575         default:
 576             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 577             // fall through
 578
 579         case wxMOUSE_BTN_ANY:
 580             return (LeftDClick() || MiddleDClick() || RightDClick() ||
 581                     Aux1DClick() || Aux2DClick());
 582
 583         case wxMOUSE_BTN_LEFT:
 584             return LeftDClick();
 585
 586         case wxMOUSE_BTN_MIDDLE:
 587             return MiddleDClick();
 588
 589         case wxMOUSE_BTN_RIGHT:
 590             return RightDClick();
 591
 592         case wxMOUSE_BTN_AUX1:
 593             return Aux1DClick();
 594
 595         case wxMOUSE_BTN_AUX2:
 596             return Aux2DClick();
 597     }
 598 }
 599
 600 // return true if was a button down event
 601 bool wxMouseEvent::ButtonDown(int but) const
 602 {
 603     switch (but)
 604     {
 605         default:
 606             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 607             // fall through
 608
 609         case wxMOUSE_BTN_ANY:
 610             return (LeftDown() || MiddleDown() || RightDown() ||
 611                     Aux1Down() || Aux2Down());
 612
 613         case wxMOUSE_BTN_LEFT:
 614             return LeftDown();
 615
 616         case wxMOUSE_BTN_MIDDLE:
 617             return MiddleDown();
 618
 619         case wxMOUSE_BTN_RIGHT:
 620             return RightDown();
 621
 622         case wxMOUSE_BTN_AUX1:
 623             return Aux1Down();
 624
 625         case wxMOUSE_BTN_AUX2:
 626             return Aux2Down();
 627     }
 628 }
 629
 630 // return true if was a button up event
 631 bool wxMouseEvent::ButtonUp(int but) const
 632 {
 633     switch (but)
 634     {
 635         default:
 636             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 637             // fall through
 638
 639         case wxMOUSE_BTN_ANY:
 640             return (LeftUp() || MiddleUp() || RightUp() ||
 641                     Aux1Up() || Aux2Up());
 642
 643         case wxMOUSE_BTN_LEFT:
 644             return LeftUp();
 645
 646         case wxMOUSE_BTN_MIDDLE:
 647             return MiddleUp();
 648
 649         case wxMOUSE_BTN_RIGHT:
 650             return RightUp();
 651
 652         case wxMOUSE_BTN_AUX1:
 653             return Aux1Up();
 654
 655         case wxMOUSE_BTN_AUX2:
 656             return Aux2Up();
 657     }
 658 }
 659
 660 // return true if the given button is currently changing state
 661 bool wxMouseEvent::Button(int but) const
 662 {
 663     switch (but)
 664     {
 665         default:
 666             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 667             // fall through
 668
 669         case wxMOUSE_BTN_ANY:
 670             return ButtonUp(wxMOUSE_BTN_ANY) ||
 671                     ButtonDown(wxMOUSE_BTN_ANY) ||
 672                         ButtonDClick(wxMOUSE_BTN_ANY);
 673
 674         case wxMOUSE_BTN_LEFT:
 675             return LeftDown() || LeftUp() || LeftDClick();
 676
 677         case wxMOUSE_BTN_MIDDLE:
 678             return MiddleDown() || MiddleUp() || MiddleDClick();
 679
 680         case wxMOUSE_BTN_RIGHT:
 681             return RightDown() || RightUp() || RightDClick();
 682
 683         case wxMOUSE_BTN_AUX1:
 684            return Aux1Down() || Aux1Up() || Aux1DClick();
 685
 686         case wxMOUSE_BTN_AUX2:
 687            return Aux2Down() || Aux2Up() || Aux2DClick();
 688     }
 689 }
 690
 691 bool wxMouseEvent::ButtonIsDown(int but) const
 692 {
 693     switch (but)
 694     {
 695         default:
 696             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 697             // fall through
 698
 699         case wxMOUSE_BTN_ANY:
 700             return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
 701
 702         case wxMOUSE_BTN_LEFT:
 703             return LeftIsDown();
 704
 705         case wxMOUSE_BTN_MIDDLE:
 706             return MiddleIsDown();
 707
 708         case wxMOUSE_BTN_RIGHT:
 709             return RightIsDown();
 710
 711         case wxMOUSE_BTN_AUX1:
 712             return Aux1IsDown();
 713
 714         case wxMOUSE_BTN_AUX2:
 715             return Aux2IsDown();
 716     }
 717 }
 718
 719 int wxMouseEvent::GetButton() const
 720 {
 721     for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
 722     {
 723         if ( Button(i) )
 724         {
 725             return i;
 726         }
 727     }
 728
 729     return wxMOUSE_BTN_NONE;
 730 }
 731
 732 // Find the logical position of the event given the DC
 733 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 734 {
 735     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 736     return pt;
 737 }
 738
 739
 740 /*
 741  * Keyboard event
 742  *
 743  */
 744
 745 wxKeyEvent::wxKeyEvent(wxEventType type)
 746 {
 747     m_eventType = type;
 748     m_shiftDown = false;
 749     m_controlDown = false;
 750     m_metaDown = false;
 751     m_altDown = false;
 752     m_keyCode = 0;
 753     m_scanCode = 0;
 754 #if wxUSE_UNICODE
 755     m_uniChar = 0;
 756 #endif
 757 }
 758
 759 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 760     : wxEvent(evt)
 761 {
 762     m_x = evt.m_x;
 763     m_y = evt.m_y;
 764
 765     m_keyCode = evt.m_keyCode;
 766
 767     m_controlDown = evt.m_controlDown;
 768     m_shiftDown = evt.m_shiftDown;
 769     m_altDown = evt.m_altDown;
 770     m_metaDown = evt.m_metaDown;
 771     m_scanCode = evt.m_scanCode;
 772     m_rawCode = evt.m_rawCode;
 773     m_rawFlags = evt.m_rawFlags;
 774
 775 #if wxUSE_UNICODE
 776     m_uniChar = evt.m_uniChar;
 777 #endif
 778 }
 779
 780 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 781 {
 782     SetEventType(wxEVT_CREATE);
 783     SetEventObject(win);
 784 }
 785
 786 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 787 {
 788     SetEventType(wxEVT_DESTROY);
 789     SetEventObject(win);
 790 }
 791
 792 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 793                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 794 {
 795     SetEventObject(win);
 796 }
 797
 798 // ----------------------------------------------------------------------------
 799 // wxHelpEvent
 800 // ----------------------------------------------------------------------------
 801
 802 /* static */
 803 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 804 {
 805     if ( origin == Origin_Unknown )
 806     {
 807         // assume that the event comes from the help button if it's not from
 808         // keyboard and that pressing F1 always results in the help event
 809         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 810     }
 811
 812     return origin;
 813 }
 814
 815 #endif // wxUSE_GUI
 816
 817
 818 #if wxUSE_BASE
 819
 820 // ----------------------------------------------------------------------------
 821 // wxEventHashTable
 822 // ----------------------------------------------------------------------------
 823
 824 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 825
 826 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 827
 828 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 829                 : m_table(table),
 830                   m_rebuildHash(true)
 831 {
 832     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 833
 834     m_next = sm_first;
 835     if (m_next)
 836         m_next->m_previous = this;
 837     sm_first = this;
 838 }
 839
 840 wxEventHashTable::~wxEventHashTable()
 841 {
 842     if (m_next)
 843         m_next->m_previous = m_previous;
 844     if (m_previous)
 845         m_previous->m_next = m_next;
 846     if (sm_first == this)
 847         sm_first = m_next;
 848
 849     Clear();
 850 }
 851
 852 void wxEventHashTable::Clear()
 853 {
 854     for ( size_t i = 0; i < m_size; i++ )
 855     {
 856         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 857         delete eTTnode;
 858     }
 859
 860     delete[] m_eventTypeTable;
 861     m_eventTypeTable = NULL;
 862
 863     m_size = 0;
 864 }
 865
 866 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 867
 868 // Clear all tables
 869 void wxEventHashTable::ClearAll()
 870 {
 871     wxEventHashTable* table = sm_first;
 872     while (table)
 873     {
 874         table->Clear();
 875         table = table->m_next;
 876     }
 877 }
 878
 879 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 880
 881 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 882 {
 883     if (m_rebuildHash)
 884     {
 885         InitHashTable();
 886         m_rebuildHash = false;
 887     }
 888
 889     if (!m_eventTypeTable)
 890         return false;
 891
 892     // Find all entries for the given event type.
 893     wxEventType eventType = event.GetEventType();
 894     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 895     if (eTTnode && eTTnode->eventType == eventType)
 896     {
 897         // Now start the search for an event handler
 898         // that can handle an event with the given ID.
 899         const wxEventTableEntryPointerArray&
 900             eventEntryTable = eTTnode->eventEntryTable;
 901
 902         const size_t count = eventEntryTable.GetCount();
 903         for (size_t n = 0; n < count; n++)
 904         {
 905             if ( wxEvtHandler::
 906                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 907             {
 908                 return true;
 909             }
 910         }
 911     }
 912
 913     return false;
 914 }
 915
 916 void wxEventHashTable::InitHashTable()
 917 {
 918     // Loop over the event tables and all its base tables.
 919     const wxEventTable *table = &m_table;
 920     while (table)
 921     {
 922         // Retrieve all valid event handler entries
 923         const wxEventTableEntry *entry = table->entries;
 924         while (entry->m_fn != 0)
 925         {
 926             // Add the event entry in the Hash.
 927             AddEntry(*entry);
 928
 929             entry++;
 930         }
 931
 932         table = table->baseTable;
 933     }
 934
 935     // Lets free some memory.
 936     size_t i;
 937     for(i = 0; i < m_size; i++)
 938     {
 939         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 940         if (eTTnode)
 941         {
 942             eTTnode->eventEntryTable.Shrink();
 943         }
 944     }
 945 }
 946
 947 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 948 {
 949     // This might happen 'accidentally' as the app is exiting
 950     if (!m_eventTypeTable)
 951         return;
 952
 953     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 954     EventTypeTablePointer  eTTnode = *peTTnode;
 955
 956     if (eTTnode)
 957     {
 958         if (eTTnode->eventType != entry.m_eventType)
 959         {
 960             // Resize the table!
 961             GrowEventTypeTable();
 962             // Try again to add it.
 963             AddEntry(entry);
 964             return;
 965         }
 966     }
 967     else
 968     {
 969         eTTnode = new EventTypeTable;
 970         eTTnode->eventType = entry.m_eventType;
 971         *peTTnode = eTTnode;
 972     }
 973
 974     // Fill all hash entries between entry.m_id and entry.m_lastId...
 975     eTTnode->eventEntryTable.Add(&entry);
 976 }
 977
 978 void wxEventHashTable::AllocEventTypeTable(size_t size)
 979 {
 980     m_eventTypeTable = new EventTypeTablePointer[size];
 981     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 982     m_size = size;
 983 }
 984
 985 void wxEventHashTable::GrowEventTypeTable()
 986 {
 987     size_t oldSize = m_size;
 988     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 989
 990     // TODO: Search the most optimal grow sequence
 991     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 992
 993     for ( size_t i = 0; i < oldSize; /* */ )
 994     {
 995         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 996         if (eTToldNode)
 997         {
 998             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 999             EventTypeTablePointer  eTTnode = *peTTnode;
1000
1001             // Check for collision, we don't want any.
1002             if (eTTnode)
1003             {
1004                 GrowEventTypeTable();
1005                 continue; // Don't increment the counter,
1006                           // as we still need to add this element.
1007             }
1008             else
1009             {
1010                 // Get the old value and put it in the new table.
1011                 *peTTnode = oldEventTypeTable[i];
1012             }
1013         }
1014
1015         i++;
1016     }
1017
1018     delete[] oldEventTypeTable;
1019 }
1020
1021 // ----------------------------------------------------------------------------
1022 // wxEvtHandler
1023 // ----------------------------------------------------------------------------
1024
1025 /*
1026  * Event handler
1027  */
1028
1029 wxEvtHandler::wxEvtHandler()
1030 {
1031     m_nextHandler = (wxEvtHandler *) NULL;
1032     m_previousHandler = (wxEvtHandler *) NULL;
1033     m_enabled = true;
1034     m_dynamicEvents = (wxList *) NULL;
1035     m_pendingEvents = (wxList *) NULL;
1036
1037     // no client data (yet)
1038     m_clientData = NULL;
1039     m_clientDataType = wxClientData_None;
1040 }
1041
1042 wxEvtHandler::~wxEvtHandler()
1043 {
1044     // Takes itself out of the list of handlers
1045     if (m_previousHandler)
1046         m_previousHandler->m_nextHandler = m_nextHandler;
1047
1048     if (m_nextHandler)
1049         m_nextHandler->m_previousHandler = m_previousHandler;
1050
1051     if (m_dynamicEvents)
1052     {
1053         for ( wxList::iterator it = m_dynamicEvents->begin(),
1054                                end = m_dynamicEvents->end();
1055               it != end;
1056               ++it )
1057         {
1058             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1059
1060             // Remove ourselves from sink destructor notifications
1061             // (this has usually been been done, in wxTrackable destructor)
1062             wxEvtHandler *eventSink = entry->m_eventSink;
1063             if ( eventSink )
1064             {
1065                 wxEventConnectionRef * const
1066                     evtConnRef = FindRefInTrackerList(eventSink);
1067                 if ( evtConnRef )
1068                 {
1069                     eventSink->RemoveNode(evtConnRef);
1070                     delete evtConnRef;
1071                 }
1072             }
1073
1074             if (entry->m_callbackUserData)
1075                 delete entry->m_callbackUserData;
1076             delete entry;
1077         }
1078         delete m_dynamicEvents;
1079     };
1080
1081     if (m_pendingEvents)
1082         m_pendingEvents->DeleteContents(true);
1083     delete m_pendingEvents;
1084
1085     // Remove us from wxPendingEvents if necessary.
1086     if ( wxPendingEvents )
1087     {
1088 #if wxUSE_THREADS
1089         if (wxPendingEventsLocker)
1090             wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1091 #endif
1092
1093         if ( wxPendingEvents->DeleteObject(this) )
1094         {
1095             // check that we were present only once in the list
1096             wxASSERT_MSG( !wxPendingEvents->Find(this),
1097                           "Handler occurs twice in wxPendingEvents list" );
1098         }
1099         //else: we weren't in this list at all, it's ok
1100
1101 #if wxUSE_THREADS
1102         if (wxPendingEventsLocker)
1103             wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1104 #endif
1105     }
1106
1107     // we only delete object data, not untyped
1108     if ( m_clientDataType == wxClientData_Object )
1109         delete m_clientObject;
1110 }
1111
1112 #if wxUSE_THREADS
1113
1114 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1115 {
1116     // check that we are really in a child thread
1117     wxASSERT_MSG( !wxThread::IsMain(),
1118                   wxT("use ProcessEvent() in main thread") );
1119
1120     AddPendingEvent(event);
1121
1122     return true;
1123 }
1124
1125 #endif // wxUSE_THREADS
1126
1127 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1128 {
1129     // 1) Add event to list of pending events of this event handler
1130
1131     wxEvent *eventCopy = event.Clone();
1132
1133     // we must be able to copy the events here so the event class must
1134     // implement Clone() properly instead of just providing a NULL stab for it
1135     wxCHECK_RET( eventCopy,
1136                  _T("events of this type aren't supposed to be posted") );
1137
1138     wxENTER_CRIT_SECT( m_pendingEventsLock );
1139
1140     if ( !m_pendingEvents )
1141       m_pendingEvents = new wxList;
1142
1143     m_pendingEvents->Append(eventCopy);
1144
1145     wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1146
1147     // 2) Add this event handler to list of event handlers that
1148     //    have pending events.
1149
1150     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1151
1152     if ( !wxPendingEvents )
1153         wxPendingEvents = new wxList;
1154     if ( !wxPendingEvents->Find(this) )
1155         wxPendingEvents->Append(this);
1156
1157     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1158
1159     // 3) Inform the system that new pending events are somewhere,
1160     //    and that these should be processed in idle time.
1161     wxWakeUpIdle();
1162 }
1163
1164 void wxEvtHandler::ProcessPendingEvents()
1165 {
1166     wxENTER_CRIT_SECT( m_pendingEventsLock );
1167
1168     // this method is only called by wxApp if this handler does have
1169     // pending events
1170     wxCHECK_RET( m_pendingEvents && !m_pendingEvents->IsEmpty(),
1171                  "should have pending events if called" );
1172
1173     wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1174     wxEventPtr event(wx_static_cast(wxEvent *, node->GetData()));
1175
1176     // it's important we remove event from list before processing it, else a
1177     // nested event loop, for example from a modal dialog, might process the
1178     // same event again.
1179     m_pendingEvents->Erase(node);
1180
1181     // if there are no more pending events left, we don't need to stay in this
1182     // list
1183     if ( m_pendingEvents->IsEmpty() )
1184         wxPendingEvents->DeleteObject(this);
1185
1186     wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1187
1188     ProcessEvent(*event);
1189
1190     // careful: this object could have been deleted by the event handler
1191     // executed by the above ProcessEvent() call, so we can't access any fields
1192     // of this object any more
1193 }
1194
1195 /*
1196  * Event table stuff
1197  */
1198 /* static */ bool
1199 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1200                                     wxEvtHandler *handler,
1201                                     wxEvent& event)
1202 {
1203     int tableId1 = entry.m_id,
1204         tableId2 = entry.m_lastId;
1205
1206     // match only if the event type is the same and the id is either -1 in
1207     // the event table (meaning "any") or the event id matches the id
1208     // specified in the event table either exactly or by falling into
1209     // range between first and last
1210     if ((tableId1 == wxID_ANY) ||
1211         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1212         (tableId2 != wxID_ANY &&
1213          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1214     {
1215         event.Skip(false);
1216         event.m_callbackUserData = entry.m_callbackUserData;
1217
1218 #if wxUSE_EXCEPTIONS
1219         if ( wxTheApp )
1220         {
1221             // call the handler via wxApp method which allows the user to catch
1222             // any exceptions which may be thrown by any handler in the program
1223             // in one place
1224             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1225         }
1226         else
1227 #endif // wxUSE_EXCEPTIONS
1228         {
1229             // no need for an extra virtual function call
1230             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1231         }
1232
1233         if (!event.GetSkipped())
1234             return true;
1235     }
1236
1237     return false;
1238 }
1239
1240 bool wxEvtHandler::TryParent(wxEvent& event)
1241 {
1242     if ( wxTheApp && (this != wxTheApp) )
1243     {
1244         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1245         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1246         // processed appropriately via SearchEventTable.
1247         if ( event.GetEventType() != wxEVT_IDLE )
1248         {
1249             if ( wxTheApp->ProcessEvent(event) )
1250                 return true;
1251         }
1252     }
1253
1254     return false;
1255 }
1256
1257 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1258 {
1259     // allow the application to hook into event processing
1260     if ( wxTheApp )
1261     {
1262         int rc = wxTheApp->FilterEvent(event);
1263         if ( rc != -1 )
1264         {
1265             wxASSERT_MSG( rc == 1 || rc == 0,
1266                           _T("unexpected wxApp::FilterEvent return value") );
1267
1268             return rc != 0;
1269         }
1270         //else: proceed normally
1271     }
1272
1273     // An event handler can be enabled or disabled
1274     if ( GetEvtHandlerEnabled() )
1275     {
1276         // if we have a validator, it has higher priority than our own event
1277         // table
1278         if ( TryValidator(event) )
1279             return true;
1280
1281         // Handle per-instance dynamic event tables first
1282         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1283             return true;
1284
1285         // Then static per-class event tables
1286         if ( GetEventHashTable().HandleEvent(event, this) )
1287             return true;
1288     }
1289
1290     // Try going down the event handler chain
1291     if ( GetNextHandler() )
1292     {
1293         // notice that we shouldn't let the parent have the event even if the
1294         // next handler does not process it because it will have already passed
1295         // it to the parent in this case
1296         return GetNextHandler()->ProcessEvent(event);
1297     }
1298
1299     // Finally propagate the event upwards the window chain and/or to the
1300     // application object as necessary
1301     return TryParent(event);
1302 }
1303
1304 bool wxEvtHandler::SafelyProcessEvent(wxEvent& event)
1305 {
1306 #if wxUSE_EXCEPTIONS
1307     try
1308     {
1309 #endif
1310         return ProcessEvent(event);
1311 #if wxUSE_EXCEPTIONS
1312     }
1313     catch ( ... )
1314     {
1315         wxEventLoopBase *loop = wxEventLoopBase::GetActive();
1316         try
1317         {
1318             if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() )
1319             {
1320                 if ( loop )
1321                     loop->Exit();
1322             }
1323             //else: continue running current event loop
1324
1325             return false;
1326         }
1327         catch ( ... )
1328         {
1329             // OnExceptionInMainLoop() threw, possibly rethrowing the same
1330             // exception again: very good, but we still need Exit() to
1331             // be called
1332             if ( loop )
1333                 loop->Exit();
1334             throw;
1335         }
1336     }
1337 #endif // wxUSE_EXCEPTIONS
1338 }
1339
1340
1341 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1342 {
1343     const wxEventType eventType = event.GetEventType();
1344     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1345     {
1346         const wxEventTableEntry& entry = table.entries[i];
1347         if ( eventType == entry.m_eventType )
1348         {
1349             if ( ProcessEventIfMatches(entry, this, event) )
1350                 return true;
1351         }
1352     }
1353
1354     return false;
1355 }
1356
1357 void wxEvtHandler::Connect( int id, int lastId,
1358                             int eventType,
1359                             wxObjectEventFunction func,
1360                             wxObject *userData,
1361                             wxEvtHandler* eventSink )
1362 {
1363     wxDynamicEventTableEntry *entry =
1364         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1365
1366     if (!m_dynamicEvents)
1367         m_dynamicEvents = new wxList;
1368
1369     // Insert at the front of the list so most recent additions are found first
1370     m_dynamicEvents->Insert( (wxObject*) entry );
1371
1372     // Make sure we get to know when a sink is destroyed
1373     if ( eventSink )
1374     {
1375         wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1376         if ( evtConnRef )
1377             evtConnRef->IncRef( );
1378         else
1379             evtConnRef = new wxEventConnectionRef(this, eventSink);
1380     }
1381 }
1382
1383 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1384                   wxObjectEventFunction func,
1385                   wxObject *userData,
1386                   wxEvtHandler* eventSink )
1387 {
1388     if (!m_dynamicEvents)
1389         return false;
1390
1391     // Remove connection from tracker node (wxEventConnectionRef)
1392     if ( eventSink )
1393     {
1394         wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1395         if ( evtConnRef )
1396             evtConnRef->DecRef();
1397     }
1398
1399     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1400     while (node)
1401     {
1402         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1403
1404         if ((entry->m_id == id) &&
1405             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1406             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1407             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1408             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1409             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1410         {
1411             if (entry->m_callbackUserData)
1412                 delete entry->m_callbackUserData;
1413             m_dynamicEvents->Erase( node );
1414             delete entry;
1415             return true;
1416         }
1417         node = node->GetNext();
1418     }
1419     return false;
1420 }
1421
1422 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1423 {
1424     wxCHECK_MSG( m_dynamicEvents, false,
1425                  wxT("caller should check that we have dynamic events") );
1426
1427     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1428     while (node)
1429     {
1430         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1431
1432         // get next node before (maybe) calling the event handler as it could
1433         // call Disconnect() invalidating the current node
1434         node = node->GetNext();
1435
1436         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1437         {
1438             wxEvtHandler *handler = entry->m_eventSink ? entry->m_eventSink
1439                                                        : this;
1440             if ( ProcessEventIfMatches(*entry, handler, event) )
1441                 return true;
1442         }
1443     }
1444
1445     return false;
1446 }
1447
1448 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1449 {
1450     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1451                   wxT("can't have both object and void client data") );
1452
1453     if ( m_clientObject )
1454         delete m_clientObject;
1455
1456     m_clientObject = data;
1457     m_clientDataType = wxClientData_Object;
1458 }
1459
1460 wxClientData *wxEvtHandler::DoGetClientObject() const
1461 {
1462     // it's not an error to call GetClientObject() on a window which doesn't
1463     // have client data at all - NULL will be returned
1464     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1465                   wxT("this window doesn't have object client data") );
1466
1467     return m_clientObject;
1468 }
1469
1470 void wxEvtHandler::DoSetClientData( void *data )
1471 {
1472     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1473                   wxT("can't have both object and void client data") );
1474
1475     m_clientData = data;
1476     m_clientDataType = wxClientData_Void;
1477 }
1478
1479 void *wxEvtHandler::DoGetClientData() const
1480 {
1481     // it's not an error to call GetClientData() on a window which doesn't have
1482     // client data at all - NULL will be returned
1483     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1484                   wxT("this window doesn't have void client data") );
1485
1486     return m_clientData;
1487 }
1488
1489 // A helper to find an wxEventConnectionRef object
1490 wxEventConnectionRef *
1491 wxEvtHandler::FindRefInTrackerList(wxEvtHandler *eventSink)
1492 {
1493     for ( wxTrackerNode *node = eventSink->GetFirst(); node; node = node->m_nxt )
1494     {
1495         // we only want wxEventConnectionRef nodes here
1496         wxEventConnectionRef *evtConnRef = node->ToEventConnection();
1497         if ( evtConnRef && evtConnRef->m_src == this )
1498         {
1499             wxASSERT( evtConnRef->m_sink==eventSink );
1500             return evtConnRef;
1501         }
1502     }
1503
1504     return NULL;
1505 }
1506
1507 void wxEvtHandler::OnSinkDestroyed( wxEvtHandler *sink )
1508 {
1509     wxASSERT(m_dynamicEvents);
1510
1511     // remove all connections with this sink
1512     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(), node_nxt;
1513     while (node)
1514     {
1515         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1516         node_nxt = node->GetNext();
1517
1518         if ( entry->m_eventSink==sink )
1519         {
1520             if (entry->m_callbackUserData)
1521                 delete entry->m_callbackUserData;
1522             m_dynamicEvents->Erase( node );
1523             delete entry;
1524         }
1525         node = node_nxt;
1526     }
1527 }
1528
1529 #endif // wxUSE_BASE
1530
1531 #if wxUSE_GUI
1532
1533 // Find a window with the focus, that is also a descendant of the given window.
1534 // This is used to determine the window to initially send commands to.
1535 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1536 {
1537     // Process events starting with the window with the focus, if any.
1538     wxWindow* focusWin = wxWindow::FindFocus();
1539     wxWindow* win = focusWin;
1540
1541     // Check if this is a descendant of this frame.
1542     // If not, win will be set to NULL.
1543     while (win)
1544     {
1545         if (win == ancestor)
1546             break;
1547         else
1548             win = win->GetParent();
1549     }
1550     if (win == (wxWindow*) NULL)
1551         focusWin = (wxWindow*) NULL;
1552
1553     return focusWin;
1554 }
1555
1556 // ----------------------------------------------------------------------------
1557 // wxEventBlocker
1558 // ----------------------------------------------------------------------------
1559
1560 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1561 {
1562     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1563
1564     m_window = win;
1565
1566     Block(type);
1567     m_window->PushEventHandler(this);
1568 }
1569
1570 wxEventBlocker::~wxEventBlocker()
1571 {
1572     wxEvtHandler *popped = m_window->PopEventHandler(false);
1573     wxCHECK_RET(popped == this,
1574         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1575 }
1576
1577 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1578 {
1579     // should this event be blocked?
1580     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1581     {
1582         wxEventType t = (wxEventType)m_eventsToBlock[i];
1583         if ( t == wxEVT_ANY || t == event.GetEventType() )
1584             return true;   // yes, it should: mark this event as processed
1585     }
1586
1587     return false;
1588 }
1589
1590 #endif // wxUSE_GUI