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
  48 #if wxUSE_BASE
  49     #include "wx/ptr_scpd.h"
  50
  51     wxDECLARE_SCOPED_PTR(wxEvent, wxEventPtr)
  52     wxDEFINE_SCOPED_PTR(wxEvent, wxEventPtr)
  53 #endif // wxUSE_BASE
  54
  55 // ----------------------------------------------------------------------------
  56 // wxWin macros
  57 // ----------------------------------------------------------------------------
  58
  59 #if wxUSE_BASE
  60     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  61     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  62     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  63 #endif // wxUSE_BASE
  64
  65 #if wxUSE_GUI
  66     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  96     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  97     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  98     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  99     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
 100     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
 101     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
 102 #endif // wxUSE_GUI
 103
 104 #if wxUSE_BASE
 105
 106 const wxEventTable *wxEvtHandler::GetEventTable() const
 107     { return &wxEvtHandler::sm_eventTable; }
 108
 109 const wxEventTable wxEvtHandler::sm_eventTable =
 110     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 111
 112 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 113     { return wxEvtHandler::sm_eventHashTable; }
 114
 115 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 116
 117 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 118     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 119
 120
 121 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 122 // leaked, so we need to manually clean up all event tables before checking for
 123 // the memory leaks when using it, however this breaks re-initializing the
 124 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 125 // event tables won't be rebuilt the next time, so disable this by default
 126 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 127
 128 class wxEventTableEntryModule: public wxModule
 129 {
 130 public:
 131     wxEventTableEntryModule() { }
 132     virtual bool OnInit() { return true; }
 133     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 134
 135     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 136 };
 137
 138 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 139
 140 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 141
 142 // ----------------------------------------------------------------------------
 143 // global variables
 144 // ----------------------------------------------------------------------------
 145
 146 // List containing event handlers with pending events (each handler can occur
 147 // at most once here)
 148 wxList *wxPendingEvents = NULL;
 149
 150 #if wxUSE_THREADS
 151     // protects wxPendingEvents list
 152     wxCriticalSection *wxPendingEventsLocker = NULL;
 153 #endif
 154
 155 // common event types are defined here, other event types are defined by the
 156 // components which use them
 157
 158 const wxEventType wxEVT_FIRST = 10000;
 159 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 160
 161 DEFINE_EVENT_TYPE(wxEVT_NULL)
 162 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 163 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 164 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 165
 166 #endif // wxUSE_BASE
 167
 168 #if wxUSE_GUI
 169
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 183 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 184 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 185 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 186 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRLDOUBLE_UPDATED)
 187 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
 188
 189 // Mouse event types
 190 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 191 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 192 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 193 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 194 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 195 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 196 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 197 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 198 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 199 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 200 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 201 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 202 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 203 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 204 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 205 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 206 DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
 207 DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
 208 DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
 209 DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
 210 DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
 211 DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
 212
 213 // Non-client mouse events
 214 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 220 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 221 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 222 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 223 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 224 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 225 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 226
 227 // Character input event type
 228 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 229 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 230 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 231 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 232 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 233 #if wxUSE_HOTKEY
 234 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 235 #endif
 236
 237 // Set cursor event
 238 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 239
 240 // wxScrollbar and wxSlider event identifiers
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 247 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 248 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 249 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 250
 251 // Scroll events from wxWindow
 252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 254 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 255 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 256 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 257 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 258 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 259 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 260
 261 // System events
 262 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 263 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 264 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 265 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 266 DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
 267 DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
 268 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 269 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 270 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 271 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 272 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 273 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 274 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 275 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 276 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 277 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 278 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 279 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 280 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
 281 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 282 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 283 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 284 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 285 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 286 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 287 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 288 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 289 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 290 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 291 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 292 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 293 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 294 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 295 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 296 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 297 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 298 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 299 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 300 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 301 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 302 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 303 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 304
 305 // Clipboard events
 306 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 309
 310 // Generic command events
 311 // Note: a click is a higher-level event than button down/up
 312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 313 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 314 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 315 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 316 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 317 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 318 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 319
 320 // Help events
 321 DEFINE_EVENT_TYPE(wxEVT_HELP)
 322 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 323
 324 #endif // wxUSE_GUI
 325
 326 #if wxUSE_BASE
 327
 328 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 329
 330 // ============================================================================
 331 // implementation
 332 // ============================================================================
 333
 334 // ----------------------------------------------------------------------------
 335 // event initialization
 336 // ----------------------------------------------------------------------------
 337
 338 int wxNewEventType()
 339 {
 340     // MT-FIXME
 341     static int s_lastUsedEventType = wxEVT_FIRST;
 342
 343     return s_lastUsedEventType++;
 344 }
 345
 346 // ----------------------------------------------------------------------------
 347 // wxEvent
 348 // ----------------------------------------------------------------------------
 349
 350 /*
 351  * General wxWidgets events, covering
 352  * all interesting things that might happen (button clicking, resizing,
 353  * setting text in widgets, etc.).
 354  *
 355  * For each completely new event type, derive a new event class.
 356  *
 357  */
 358
 359 wxEvent::wxEvent(int theId, wxEventType commandType )
 360 {
 361     m_eventType = commandType;
 362     m_eventObject = (wxObject *) NULL;
 363     m_timeStamp = 0;
 364     m_id = theId;
 365     m_skipped = false;
 366     m_callbackUserData = (wxObject *) NULL;
 367     m_isCommandEvent = false;
 368     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 369 }
 370
 371 wxEvent::wxEvent(const wxEvent &src)
 372     : wxObject(src)
 373     , m_eventObject(src.m_eventObject)
 374     , m_eventType(src.m_eventType)
 375     , m_timeStamp(src.m_timeStamp)
 376     , m_id(src.m_id)
 377     , m_callbackUserData(src.m_callbackUserData)
 378     , m_propagationLevel(src.m_propagationLevel)
 379     , m_skipped(src.m_skipped)
 380     , m_isCommandEvent(src.m_isCommandEvent)
 381 {
 382 }
 383
 384 #endif // wxUSE_BASE
 385
 386 #if wxUSE_GUI
 387
 388 /*
 389  * Command events
 390  *
 391  */
 392
 393 #ifdef __VISUALC__
 394     // 'this' : used in base member initializer list (for m_commandString)
 395     #pragma warning(disable:4355)
 396 #endif
 397
 398 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 399               : wxEvent(theId, commandType)
 400 {
 401     m_clientData = (char *) NULL;
 402     m_clientObject = (wxClientData *) NULL;
 403     m_extraLong = 0;
 404     m_commandInt = 0;
 405     m_isCommandEvent = true;
 406
 407     // the command events are propagated upwards by default
 408     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 409 }
 410
 411 #ifdef __VISUALC__
 412     #pragma warning(default:4355)
 413 #endif
 414
 415 wxString wxCommandEvent::GetString() const
 416 {
 417     if (m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 418     {
 419         return m_cmdString;
 420     }
 421     else
 422     {
 423 #if wxUSE_TEXTCTRL
 424         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 425         if ( txt )
 426             return txt->GetValue();
 427         else
 428 #endif // wxUSE_TEXTCTRL
 429             return m_cmdString;
 430     }
 431 }
 432
 433 /*
 434  * UI update events
 435  */
 436
 437 #if wxUSE_LONGLONG
 438 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 439 #endif
 440
 441 long wxUpdateUIEvent::sm_updateInterval = 0;
 442
 443 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 444
 445 // Can we update?
 446 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 447 {
 448     // Don't update if we've switched global updating off
 449     // and this window doesn't support updates.
 450     if (win &&
 451        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 452        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 453         return false;
 454
 455     if (sm_updateInterval == -1)
 456         return false;
 457
 458     if (sm_updateInterval == 0)
 459         return true;
 460
 461 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 462     wxLongLong now = wxGetLocalTimeMillis();
 463     if (now > (sm_lastUpdate + sm_updateInterval))
 464     {
 465         return true;
 466     }
 467
 468     return false;
 469 #else
 470     // If we don't have wxStopWatch or wxLongLong, we
 471     // should err on the safe side and update now anyway.
 472     return true;
 473 #endif
 474 }
 475
 476 // Reset the update time to provide a delay until the next
 477 // time we should update
 478 void wxUpdateUIEvent::ResetUpdateTime()
 479 {
 480 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 481     if (sm_updateInterval > 0)
 482     {
 483         wxLongLong now = wxGetLocalTimeMillis();
 484         if (now > (sm_lastUpdate + sm_updateInterval))
 485         {
 486             sm_lastUpdate = now;
 487         }
 488     }
 489 #endif
 490 }
 491
 492 /*
 493  * Scroll events
 494  */
 495
 496 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 497                              int id,
 498                              int pos,
 499                              int orient)
 500     : wxCommandEvent(commandType, id)
 501 {
 502     m_extraLong = orient;
 503     m_commandInt = pos;
 504 }
 505
 506 /*
 507  * ScrollWin events
 508  */
 509
 510 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 511                                    int pos,
 512                                    int orient)
 513 {
 514     m_eventType = commandType;
 515     m_extraLong = orient;
 516     m_commandInt = pos;
 517 }
 518
 519 /*
 520  * Mouse events
 521  *
 522  */
 523
 524 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 525 {
 526     m_eventType = commandType;
 527
 528     m_x = 0;
 529     m_y = 0;
 530
 531     m_leftDown = false;
 532     m_middleDown = false;
 533     m_rightDown = false;
 534     m_aux1Down = false;
 535     m_aux2Down = false;
 536
 537     m_controlDown = false;
 538     m_shiftDown = false;
 539     m_altDown = false;
 540     m_metaDown = false;
 541
 542     m_clickCount = -1;
 543
 544     m_wheelRotation = 0;
 545     m_wheelDelta = 0;
 546     m_linesPerAction = 0;
 547     m_wheelAxis = 0;
 548 }
 549
 550 void wxMouseEvent::Assign(const wxMouseEvent& event)
 551 {
 552     m_eventType = event.m_eventType;
 553
 554     m_x = event.m_x;
 555     m_y = event.m_y;
 556
 557     m_leftDown = event.m_leftDown;
 558     m_middleDown = event.m_middleDown;
 559     m_rightDown = event.m_rightDown;
 560     m_aux1Down = event.m_aux1Down;
 561     m_aux2Down = event.m_aux2Down;
 562
 563     m_controlDown = event.m_controlDown;
 564     m_shiftDown = event.m_shiftDown;
 565     m_altDown = event.m_altDown;
 566     m_metaDown = event.m_metaDown;
 567
 568     m_wheelRotation = event.m_wheelRotation;
 569     m_wheelDelta = event.m_wheelDelta;
 570     m_linesPerAction = event.m_linesPerAction;
 571     m_wheelAxis = event.m_wheelAxis;
 572 }
 573
 574 // return true if was a button dclick event
 575 bool wxMouseEvent::ButtonDClick(int but) const
 576 {
 577     switch (but)
 578     {
 579         default:
 580             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 581             // fall through
 582
 583         case wxMOUSE_BTN_ANY:
 584             return (LeftDClick() || MiddleDClick() || RightDClick() ||
 585                     Aux1DClick() || Aux2DClick());
 586
 587         case wxMOUSE_BTN_LEFT:
 588             return LeftDClick();
 589
 590         case wxMOUSE_BTN_MIDDLE:
 591             return MiddleDClick();
 592
 593         case wxMOUSE_BTN_RIGHT:
 594             return RightDClick();
 595
 596         case wxMOUSE_BTN_AUX1:
 597             return Aux1DClick();
 598
 599         case wxMOUSE_BTN_AUX2:
 600             return Aux2DClick();
 601     }
 602 }
 603
 604 // return true if was a button down event
 605 bool wxMouseEvent::ButtonDown(int but) const
 606 {
 607     switch (but)
 608     {
 609         default:
 610             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 611             // fall through
 612
 613         case wxMOUSE_BTN_ANY:
 614             return (LeftDown() || MiddleDown() || RightDown() ||
 615                     Aux1Down() || Aux2Down());
 616
 617         case wxMOUSE_BTN_LEFT:
 618             return LeftDown();
 619
 620         case wxMOUSE_BTN_MIDDLE:
 621             return MiddleDown();
 622
 623         case wxMOUSE_BTN_RIGHT:
 624             return RightDown();
 625
 626         case wxMOUSE_BTN_AUX1:
 627             return Aux1Down();
 628
 629         case wxMOUSE_BTN_AUX2:
 630             return Aux2Down();
 631     }
 632 }
 633
 634 // return true if was a button up event
 635 bool wxMouseEvent::ButtonUp(int but) const
 636 {
 637     switch (but)
 638     {
 639         default:
 640             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 641             // fall through
 642
 643         case wxMOUSE_BTN_ANY:
 644             return (LeftUp() || MiddleUp() || RightUp() ||
 645                     Aux1Up() || Aux2Up());
 646
 647         case wxMOUSE_BTN_LEFT:
 648             return LeftUp();
 649
 650         case wxMOUSE_BTN_MIDDLE:
 651             return MiddleUp();
 652
 653         case wxMOUSE_BTN_RIGHT:
 654             return RightUp();
 655
 656         case wxMOUSE_BTN_AUX1:
 657             return Aux1Up();
 658
 659         case wxMOUSE_BTN_AUX2:
 660             return Aux2Up();
 661     }
 662 }
 663
 664 // return true if the given button is currently changing state
 665 bool wxMouseEvent::Button(int but) const
 666 {
 667     switch (but)
 668     {
 669         default:
 670             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 671             // fall through
 672
 673         case wxMOUSE_BTN_ANY:
 674             return ButtonUp(wxMOUSE_BTN_ANY) ||
 675                     ButtonDown(wxMOUSE_BTN_ANY) ||
 676                         ButtonDClick(wxMOUSE_BTN_ANY);
 677
 678         case wxMOUSE_BTN_LEFT:
 679             return LeftDown() || LeftUp() || LeftDClick();
 680
 681         case wxMOUSE_BTN_MIDDLE:
 682             return MiddleDown() || MiddleUp() || MiddleDClick();
 683
 684         case wxMOUSE_BTN_RIGHT:
 685             return RightDown() || RightUp() || RightDClick();
 686
 687         case wxMOUSE_BTN_AUX1:
 688            return Aux1Down() || Aux1Up() || Aux1DClick();
 689
 690         case wxMOUSE_BTN_AUX2:
 691            return Aux2Down() || Aux2Up() || Aux2DClick();
 692     }
 693 }
 694
 695 bool wxMouseEvent::ButtonIsDown(int but) const
 696 {
 697     switch (but)
 698     {
 699         default:
 700             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 701             // fall through
 702
 703         case wxMOUSE_BTN_ANY:
 704             return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
 705
 706         case wxMOUSE_BTN_LEFT:
 707             return LeftIsDown();
 708
 709         case wxMOUSE_BTN_MIDDLE:
 710             return MiddleIsDown();
 711
 712         case wxMOUSE_BTN_RIGHT:
 713             return RightIsDown();
 714
 715         case wxMOUSE_BTN_AUX1:
 716             return Aux1IsDown();
 717
 718         case wxMOUSE_BTN_AUX2:
 719             return Aux2IsDown();
 720     }
 721 }
 722
 723 int wxMouseEvent::GetButton() const
 724 {
 725     for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
 726     {
 727         if ( Button(i) )
 728         {
 729             return i;
 730         }
 731     }
 732
 733     return wxMOUSE_BTN_NONE;
 734 }
 735
 736 // Find the logical position of the event given the DC
 737 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 738 {
 739     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 740     return pt;
 741 }
 742
 743
 744 /*
 745  * Keyboard event
 746  *
 747  */
 748
 749 wxKeyEvent::wxKeyEvent(wxEventType type)
 750 {
 751     m_eventType = type;
 752     m_shiftDown = false;
 753     m_controlDown = false;
 754     m_metaDown = false;
 755     m_altDown = false;
 756     m_keyCode = 0;
 757     m_scanCode = 0;
 758 #if wxUSE_UNICODE
 759     m_uniChar = 0;
 760 #endif
 761 }
 762
 763 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 764     : wxEvent(evt)
 765 {
 766     m_x = evt.m_x;
 767     m_y = evt.m_y;
 768
 769     m_keyCode = evt.m_keyCode;
 770
 771     m_controlDown = evt.m_controlDown;
 772     m_shiftDown = evt.m_shiftDown;
 773     m_altDown = evt.m_altDown;
 774     m_metaDown = evt.m_metaDown;
 775     m_scanCode = evt.m_scanCode;
 776     m_rawCode = evt.m_rawCode;
 777     m_rawFlags = evt.m_rawFlags;
 778
 779 #if wxUSE_UNICODE
 780     m_uniChar = evt.m_uniChar;
 781 #endif
 782 }
 783
 784 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 785 {
 786     SetEventType(wxEVT_CREATE);
 787     SetEventObject(win);
 788 }
 789
 790 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 791 {
 792     SetEventType(wxEVT_DESTROY);
 793     SetEventObject(win);
 794 }
 795
 796 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 797                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 798 {
 799     SetEventObject(win);
 800 }
 801
 802 // ----------------------------------------------------------------------------
 803 // wxHelpEvent
 804 // ----------------------------------------------------------------------------
 805
 806 /* static */
 807 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 808 {
 809     if ( origin == Origin_Unknown )
 810     {
 811         // assume that the event comes from the help button if it's not from
 812         // keyboard and that pressing F1 always results in the help event
 813         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 814     }
 815
 816     return origin;
 817 }
 818
 819 #endif // wxUSE_GUI
 820
 821
 822 #if wxUSE_BASE
 823
 824 // ----------------------------------------------------------------------------
 825 // wxEventHashTable
 826 // ----------------------------------------------------------------------------
 827
 828 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 829
 830 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 831
 832 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 833                 : m_table(table),
 834                   m_rebuildHash(true)
 835 {
 836     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 837
 838     m_next = sm_first;
 839     if (m_next)
 840         m_next->m_previous = this;
 841     sm_first = this;
 842 }
 843
 844 wxEventHashTable::~wxEventHashTable()
 845 {
 846     if (m_next)
 847         m_next->m_previous = m_previous;
 848     if (m_previous)
 849         m_previous->m_next = m_next;
 850     if (sm_first == this)
 851         sm_first = m_next;
 852
 853     Clear();
 854 }
 855
 856 void wxEventHashTable::Clear()
 857 {
 858     for ( size_t i = 0; i < m_size; i++ )
 859     {
 860         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 861         delete eTTnode;
 862     }
 863
 864     delete[] m_eventTypeTable;
 865     m_eventTypeTable = NULL;
 866
 867     m_size = 0;
 868 }
 869
 870 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 871
 872 // Clear all tables
 873 void wxEventHashTable::ClearAll()
 874 {
 875     wxEventHashTable* table = sm_first;
 876     while (table)
 877     {
 878         table->Clear();
 879         table = table->m_next;
 880     }
 881 }
 882
 883 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 884
 885 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 886 {
 887     if (m_rebuildHash)
 888     {
 889         InitHashTable();
 890         m_rebuildHash = false;
 891     }
 892
 893     if (!m_eventTypeTable)
 894         return false;
 895
 896     // Find all entries for the given event type.
 897     wxEventType eventType = event.GetEventType();
 898     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 899     if (eTTnode && eTTnode->eventType == eventType)
 900     {
 901         // Now start the search for an event handler
 902         // that can handle an event with the given ID.
 903         const wxEventTableEntryPointerArray&
 904             eventEntryTable = eTTnode->eventEntryTable;
 905
 906         const size_t count = eventEntryTable.GetCount();
 907         for (size_t n = 0; n < count; n++)
 908         {
 909             if ( wxEvtHandler::
 910                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 911             {
 912                 return true;
 913             }
 914         }
 915     }
 916
 917     return false;
 918 }
 919
 920 void wxEventHashTable::InitHashTable()
 921 {
 922     // Loop over the event tables and all its base tables.
 923     const wxEventTable *table = &m_table;
 924     while (table)
 925     {
 926         // Retrieve all valid event handler entries
 927         const wxEventTableEntry *entry = table->entries;
 928         while (entry->m_fn != 0)
 929         {
 930             // Add the event entry in the Hash.
 931             AddEntry(*entry);
 932
 933             entry++;
 934         }
 935
 936         table = table->baseTable;
 937     }
 938
 939     // Lets free some memory.
 940     size_t i;
 941     for(i = 0; i < m_size; i++)
 942     {
 943         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 944         if (eTTnode)
 945         {
 946             eTTnode->eventEntryTable.Shrink();
 947         }
 948     }
 949 }
 950
 951 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 952 {
 953     // This might happen 'accidentally' as the app is exiting
 954     if (!m_eventTypeTable)
 955         return;
 956
 957     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 958     EventTypeTablePointer  eTTnode = *peTTnode;
 959
 960     if (eTTnode)
 961     {
 962         if (eTTnode->eventType != entry.m_eventType)
 963         {
 964             // Resize the table!
 965             GrowEventTypeTable();
 966             // Try again to add it.
 967             AddEntry(entry);
 968             return;
 969         }
 970     }
 971     else
 972     {
 973         eTTnode = new EventTypeTable;
 974         eTTnode->eventType = entry.m_eventType;
 975         *peTTnode = eTTnode;
 976     }
 977
 978     // Fill all hash entries between entry.m_id and entry.m_lastId...
 979     eTTnode->eventEntryTable.Add(&entry);
 980 }
 981
 982 void wxEventHashTable::AllocEventTypeTable(size_t size)
 983 {
 984     m_eventTypeTable = new EventTypeTablePointer[size];
 985     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 986     m_size = size;
 987 }
 988
 989 void wxEventHashTable::GrowEventTypeTable()
 990 {
 991     size_t oldSize = m_size;
 992     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 993
 994     // TODO: Search the most optimal grow sequence
 995     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 996
 997     for ( size_t i = 0; i < oldSize; /* */ )
 998     {
 999         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
1000         if (eTToldNode)
1001         {
1002             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
1003             EventTypeTablePointer  eTTnode = *peTTnode;
1004
1005             // Check for collision, we don't want any.
1006             if (eTTnode)
1007             {
1008                 GrowEventTypeTable();
1009                 continue; // Don't increment the counter,
1010                           // as we still need to add this element.
1011             }
1012             else
1013             {
1014                 // Get the old value and put it in the new table.
1015                 *peTTnode = oldEventTypeTable[i];
1016             }
1017         }
1018
1019         i++;
1020     }
1021
1022     delete[] oldEventTypeTable;
1023 }
1024
1025 // ----------------------------------------------------------------------------
1026 // wxEvtHandler
1027 // ----------------------------------------------------------------------------
1028
1029 /*
1030  * Event handler
1031  */
1032
1033 wxEvtHandler::wxEvtHandler()
1034 {
1035     m_nextHandler = (wxEvtHandler *) NULL;
1036     m_previousHandler = (wxEvtHandler *) NULL;
1037     m_enabled = true;
1038     m_dynamicEvents = (wxList *) NULL;
1039     m_pendingEvents = (wxList *) NULL;
1040
1041     // no client data (yet)
1042     m_clientData = NULL;
1043     m_clientDataType = wxClientData_None;
1044 }
1045
1046 wxEvtHandler::~wxEvtHandler()
1047 {
1048     // Takes itself out of the list of handlers
1049     if (m_previousHandler)
1050         m_previousHandler->m_nextHandler = m_nextHandler;
1051
1052     if (m_nextHandler)
1053         m_nextHandler->m_previousHandler = m_previousHandler;
1054
1055     if (m_dynamicEvents)
1056     {
1057         for ( wxList::iterator it = m_dynamicEvents->begin(),
1058                                end = m_dynamicEvents->end();
1059               it != end;
1060               ++it )
1061         {
1062             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1063
1064 #if wxUSE_WEAKREF
1065             // Remove ourselves from sink destructor notifications
1066             // (this has usually been been done, in wxTrackable destructor)
1067             wxEvtHandler *eventSink = entry->m_eventSink;
1068             if ( eventSink )
1069             {
1070                 wxEventConnectionRef * const
1071                     evtConnRef = FindRefInTrackerList(eventSink);
1072                 if ( evtConnRef )
1073                 {
1074                     eventSink->RemoveNode(evtConnRef);
1075                     delete evtConnRef;
1076                 }
1077             }
1078 #endif // wxUSE_WEAKREF
1079
1080             if (entry->m_callbackUserData)
1081                 delete entry->m_callbackUserData;
1082             delete entry;
1083         }
1084         delete m_dynamicEvents;
1085     };
1086
1087     if (m_pendingEvents)
1088         m_pendingEvents->DeleteContents(true);
1089     delete m_pendingEvents;
1090
1091     // Remove us from wxPendingEvents if necessary.
1092     if ( wxPendingEvents )
1093     {
1094 #if wxUSE_THREADS
1095         if (wxPendingEventsLocker)
1096             wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1097 #endif
1098
1099         if ( wxPendingEvents->DeleteObject(this) )
1100         {
1101             // check that we were present only once in the list
1102             wxASSERT_MSG( !wxPendingEvents->Find(this),
1103                           "Handler occurs twice in wxPendingEvents list" );
1104         }
1105         //else: we weren't in this list at all, it's ok
1106
1107 #if wxUSE_THREADS
1108         if (wxPendingEventsLocker)
1109             wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1110 #endif
1111     }
1112
1113     // we only delete object data, not untyped
1114     if ( m_clientDataType == wxClientData_Object )
1115         delete m_clientObject;
1116 }
1117
1118 #if wxUSE_THREADS
1119
1120 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1121 {
1122     // check that we are really in a child thread
1123     wxASSERT_MSG( !wxThread::IsMain(),
1124                   wxT("use ProcessEvent() in main thread") );
1125
1126     AddPendingEvent(event);
1127
1128     return true;
1129 }
1130
1131 #endif // wxUSE_THREADS
1132
1133 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1134 {
1135     // 1) Add event to list of pending events of this event handler
1136
1137     wxEvent *eventCopy = event.Clone();
1138
1139     // we must be able to copy the events here so the event class must
1140     // implement Clone() properly instead of just providing a NULL stab for it
1141     wxCHECK_RET( eventCopy,
1142                  _T("events of this type aren't supposed to be posted") );
1143
1144     wxENTER_CRIT_SECT( m_pendingEventsLock );
1145
1146     if ( !m_pendingEvents )
1147       m_pendingEvents = new wxList;
1148
1149     m_pendingEvents->Append(eventCopy);
1150
1151     wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1152
1153     // 2) Add this event handler to list of event handlers that
1154     //    have pending events.
1155
1156     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1157
1158     if ( !wxPendingEvents )
1159         wxPendingEvents = new wxList;
1160     if ( !wxPendingEvents->Find(this) )
1161         wxPendingEvents->Append(this);
1162
1163     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1164
1165     // 3) Inform the system that new pending events are somewhere,
1166     //    and that these should be processed in idle time.
1167     wxWakeUpIdle();
1168 }
1169
1170 void wxEvtHandler::ProcessPendingEvents()
1171 {
1172     wxENTER_CRIT_SECT( m_pendingEventsLock );
1173
1174     // this method is only called by wxApp if this handler does have
1175     // pending events
1176     wxCHECK_RET( m_pendingEvents && !m_pendingEvents->IsEmpty(),
1177                  "should have pending events if called" );
1178
1179     wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1180     wxEventPtr event(wx_static_cast(wxEvent *, node->GetData()));
1181
1182     // it's important we remove event from list before processing it, else a
1183     // nested event loop, for example from a modal dialog, might process the
1184     // same event again.
1185     m_pendingEvents->Erase(node);
1186
1187     // if there are no more pending events left, we don't need to stay in this
1188     // list
1189     if ( m_pendingEvents->IsEmpty() )
1190     {
1191 #if wxUSE_THREADS
1192         if (wxPendingEventsLocker)
1193             wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1194 #endif
1195         wxPendingEvents->DeleteObject(this);
1196 #if wxUSE_THREADS
1197         if (wxPendingEventsLocker)
1198             wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1199 #endif
1200     }
1201
1202     wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1203
1204     ProcessEvent(*event);
1205
1206     // careful: this object could have been deleted by the event handler
1207     // executed by the above ProcessEvent() call, so we can't access any fields
1208     // of this object any more
1209 }
1210
1211 /*
1212  * Event table stuff
1213  */
1214 /* static */ bool
1215 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1216                                     wxEvtHandler *handler,
1217                                     wxEvent& event)
1218 {
1219     int tableId1 = entry.m_id,
1220         tableId2 = entry.m_lastId;
1221
1222     // match only if the event type is the same and the id is either -1 in
1223     // the event table (meaning "any") or the event id matches the id
1224     // specified in the event table either exactly or by falling into
1225     // range between first and last
1226     if ((tableId1 == wxID_ANY) ||
1227         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1228         (tableId2 != wxID_ANY &&
1229          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1230     {
1231         event.Skip(false);
1232         event.m_callbackUserData = entry.m_callbackUserData;
1233
1234 #if wxUSE_EXCEPTIONS
1235         if ( wxTheApp )
1236         {
1237             // call the handler via wxApp method which allows the user to catch
1238             // any exceptions which may be thrown by any handler in the program
1239             // in one place
1240             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1241         }
1242         else
1243 #endif // wxUSE_EXCEPTIONS
1244         {
1245             // no need for an extra virtual function call
1246             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1247         }
1248
1249         if (!event.GetSkipped())
1250             return true;
1251     }
1252
1253     return false;
1254 }
1255
1256 bool wxEvtHandler::TryParent(wxEvent& event)
1257 {
1258     if ( wxTheApp && (this != wxTheApp) )
1259     {
1260         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1261         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1262         // processed appropriately via SearchEventTable.
1263         if ( event.GetEventType() != wxEVT_IDLE )
1264         {
1265             if ( wxTheApp->ProcessEvent(event) )
1266                 return true;
1267         }
1268     }
1269
1270     return false;
1271 }
1272
1273 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1274 {
1275     // allow the application to hook into event processing
1276     if ( wxTheApp )
1277     {
1278         int rc = wxTheApp->FilterEvent(event);
1279         if ( rc != -1 )
1280         {
1281             wxASSERT_MSG( rc == 1 || rc == 0,
1282                           _T("unexpected wxApp::FilterEvent return value") );
1283
1284             return rc != 0;
1285         }
1286         //else: proceed normally
1287     }
1288
1289     // An event handler can be enabled or disabled
1290     if ( GetEvtHandlerEnabled() )
1291     {
1292         // if we have a validator, it has higher priority than our own event
1293         // table
1294         if ( TryValidator(event) )
1295             return true;
1296
1297         // Handle per-instance dynamic event tables first
1298         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1299             return true;
1300
1301         // Then static per-class event tables
1302         if ( GetEventHashTable().HandleEvent(event, this) )
1303             return true;
1304     }
1305
1306     // Try going down the event handler chain
1307     if ( GetNextHandler() )
1308     {
1309         // notice that we shouldn't let the parent have the event even if the
1310         // next handler does not process it because it will have already passed
1311         // it to the parent in this case
1312         return GetNextHandler()->ProcessEvent(event);
1313     }
1314
1315     // Finally propagate the event upwards the window chain and/or to the
1316     // application object as necessary
1317     return TryParent(event);
1318 }
1319
1320 bool wxEvtHandler::SafelyProcessEvent(wxEvent& event)
1321 {
1322 #if wxUSE_EXCEPTIONS
1323     try
1324     {
1325 #endif
1326         return ProcessEvent(event);
1327 #if wxUSE_EXCEPTIONS
1328     }
1329     catch ( ... )
1330     {
1331         wxEventLoopBase *loop = wxEventLoopBase::GetActive();
1332         try
1333         {
1334             if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() )
1335             {
1336                 if ( loop )
1337                     loop->Exit();
1338             }
1339             //else: continue running current event loop
1340
1341             return false;
1342         }
1343         catch ( ... )
1344         {
1345             // OnExceptionInMainLoop() threw, possibly rethrowing the same
1346             // exception again: very good, but we still need Exit() to
1347             // be called
1348             if ( loop )
1349                 loop->Exit();
1350             throw;
1351         }
1352     }
1353 #endif // wxUSE_EXCEPTIONS
1354 }
1355
1356
1357 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1358 {
1359     const wxEventType eventType = event.GetEventType();
1360     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1361     {
1362         const wxEventTableEntry& entry = table.entries[i];
1363         if ( eventType == entry.m_eventType )
1364         {
1365             if ( ProcessEventIfMatches(entry, this, event) )
1366                 return true;
1367         }
1368     }
1369
1370     return false;
1371 }
1372
1373 void wxEvtHandler::Connect( int id, int lastId,
1374                             int eventType,
1375                             wxObjectEventFunction func,
1376                             wxObject *userData,
1377                             wxEvtHandler* eventSink )
1378 {
1379     wxDynamicEventTableEntry *entry =
1380         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1381
1382     if (!m_dynamicEvents)
1383         m_dynamicEvents = new wxList;
1384
1385     // Insert at the front of the list so most recent additions are found first
1386     m_dynamicEvents->Insert( (wxObject*) entry );
1387
1388 #if wxUSE_WEAKREF
1389     // Make sure we get to know when a sink is destroyed
1390     if ( eventSink && eventSink != this )
1391     {
1392         wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1393         if ( evtConnRef )
1394             evtConnRef->IncRef( );
1395         else
1396             evtConnRef = new wxEventConnectionRef(this, eventSink);
1397     }
1398 #endif // wxUSE_WEAKREF
1399 }
1400
1401 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1402                   wxObjectEventFunction func,
1403                   wxObject *userData,
1404                   wxEvtHandler* eventSink )
1405 {
1406     if (!m_dynamicEvents)
1407         return false;
1408
1409 #if wxUSE_WEAKREF
1410     // Remove connection from tracker node (wxEventConnectionRef)
1411     if ( eventSink && eventSink != this )
1412     {
1413         wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1414         if ( evtConnRef )
1415             evtConnRef->DecRef();
1416     }
1417 #endif // wxUSE_WEAKREF
1418
1419     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1420     while (node)
1421     {
1422         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1423
1424         if ((entry->m_id == id) &&
1425             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1426             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1427             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1428             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1429             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1430         {
1431             if (entry->m_callbackUserData)
1432                 delete entry->m_callbackUserData;
1433             m_dynamicEvents->Erase( node );
1434             delete entry;
1435             return true;
1436         }
1437         node = node->GetNext();
1438     }
1439     return false;
1440 }
1441
1442 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1443 {
1444     wxCHECK_MSG( m_dynamicEvents, false,
1445                  wxT("caller should check that we have dynamic events") );
1446
1447     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1448     while (node)
1449     {
1450         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1451
1452         // get next node before (maybe) calling the event handler as it could
1453         // call Disconnect() invalidating the current node
1454         node = node->GetNext();
1455
1456         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1457         {
1458             wxEvtHandler *handler = entry->m_eventSink ? entry->m_eventSink
1459                                                        : this;
1460             if ( ProcessEventIfMatches(*entry, handler, event) )
1461                 return true;
1462         }
1463     }
1464
1465     return false;
1466 }
1467
1468 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1469 {
1470     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1471                   wxT("can't have both object and void client data") );
1472
1473     if ( m_clientObject )
1474         delete m_clientObject;
1475
1476     m_clientObject = data;
1477     m_clientDataType = wxClientData_Object;
1478 }
1479
1480 wxClientData *wxEvtHandler::DoGetClientObject() const
1481 {
1482     // it's not an error to call GetClientObject() on a window which doesn't
1483     // have client data at all - NULL will be returned
1484     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1485                   wxT("this window doesn't have object client data") );
1486
1487     return m_clientObject;
1488 }
1489
1490 void wxEvtHandler::DoSetClientData( void *data )
1491 {
1492     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1493                   wxT("can't have both object and void client data") );
1494
1495     m_clientData = data;
1496     m_clientDataType = wxClientData_Void;
1497 }
1498
1499 void *wxEvtHandler::DoGetClientData() const
1500 {
1501     // it's not an error to call GetClientData() on a window which doesn't have
1502     // client data at all - NULL will be returned
1503     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1504                   wxT("this window doesn't have void client data") );
1505
1506     return m_clientData;
1507 }
1508
1509 #if wxUSE_WEAKREF
1510 // A helper to find an wxEventConnectionRef object
1511 wxEventConnectionRef *
1512 wxEvtHandler::FindRefInTrackerList(wxEvtHandler *eventSink)
1513 {
1514     for ( wxTrackerNode *node = eventSink->GetFirst(); node; node = node->m_nxt )
1515     {
1516         // we only want wxEventConnectionRef nodes here
1517         wxEventConnectionRef *evtConnRef = node->ToEventConnection();
1518         if ( evtConnRef && evtConnRef->m_src == this )
1519         {
1520             wxASSERT( evtConnRef->m_sink==eventSink );
1521             return evtConnRef;
1522         }
1523     }
1524
1525     return NULL;
1526 }
1527
1528 void wxEvtHandler::OnSinkDestroyed( wxEvtHandler *sink )
1529 {
1530     wxASSERT(m_dynamicEvents);
1531
1532     // remove all connections with this sink
1533     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(), node_nxt;
1534     while (node)
1535     {
1536         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1537         node_nxt = node->GetNext();
1538
1539         if ( entry->m_eventSink==sink )
1540         {
1541             if (entry->m_callbackUserData)
1542                 delete entry->m_callbackUserData;
1543             m_dynamicEvents->Erase( node );
1544             delete entry;
1545         }
1546         node = node_nxt;
1547     }
1548 }
1549 #endif // wxUSE_WEAKREF
1550
1551 #endif // wxUSE_BASE
1552
1553 #if wxUSE_GUI
1554
1555 // Find a window with the focus, that is also a descendant of the given window.
1556 // This is used to determine the window to initially send commands to.
1557 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1558 {
1559     // Process events starting with the window with the focus, if any.
1560     wxWindow* focusWin = wxWindow::FindFocus();
1561     wxWindow* win = focusWin;
1562
1563     // Check if this is a descendant of this frame.
1564     // If not, win will be set to NULL.
1565     while (win)
1566     {
1567         if (win == ancestor)
1568             break;
1569         else
1570             win = win->GetParent();
1571     }
1572     if (win == (wxWindow*) NULL)
1573         focusWin = (wxWindow*) NULL;
1574
1575     return focusWin;
1576 }
1577
1578 // ----------------------------------------------------------------------------
1579 // wxEventBlocker
1580 // ----------------------------------------------------------------------------
1581
1582 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1583 {
1584     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1585
1586     m_window = win;
1587
1588     Block(type);
1589     m_window->PushEventHandler(this);
1590 }
1591
1592 wxEventBlocker::~wxEventBlocker()
1593 {
1594     wxEvtHandler *popped = m_window->PopEventHandler(false);
1595     wxCHECK_RET(popped == this,
1596         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1597 }
1598
1599 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1600 {
1601     // should this event be blocked?
1602     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1603     {
1604         wxEventType t = (wxEventType)m_eventsToBlock[i];
1605         if ( t == wxEVT_ANY || t == event.GetEventType() )
1606             return true;   // yes, it should: mark this event as processed
1607     }
1608
1609     return false;
1610 }
1611
1612 #endif // wxUSE_GUI