src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/event.cpp
   3 // Purpose:     Event classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/event.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/list.h"
  31     #include "wx/app.h"
  32     #include "wx/utils.h"
  33     #include "wx/stopwatch.h"
  34     #include "wx/module.h"
  35
  36     #if wxUSE_GUI
  37         #include "wx/window.h"
  38         #include "wx/control.h"
  39         #include "wx/dc.h"
  40         #include "wx/textctrl.h"
  41         #include "wx/validate.h"
  42     #endif // wxUSE_GUI
  43 #endif
  44
  45 // ----------------------------------------------------------------------------
  46 // wxWin macros
  47 // ----------------------------------------------------------------------------
  48
  49 #if wxUSE_BASE
  50     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  51     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  52     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  53 #endif // wxUSE_BASE
  54
  55 #if wxUSE_GUI
  56     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  57     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  58     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  59     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  92 #endif // wxUSE_GUI
  93
  94 #if wxUSE_BASE
  95
  96 const wxEventTable *wxEvtHandler::GetEventTable() const
  97     { return &wxEvtHandler::sm_eventTable; }
  98
  99 const wxEventTable wxEvtHandler::sm_eventTable =
 100     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 101
 102 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 103     { return wxEvtHandler::sm_eventHashTable; }
 104
 105 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 106
 107 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 108     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 109
 110
 111 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 112 // leaked, so we need to manually clean up all event tables before checking for
 113 // the memory leaks when using it, however this breaks re-initializing the
 114 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 115 // event tables won't be rebuilt the next time, so disable this by default
 116 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 117
 118 class wxEventTableEntryModule: public wxModule
 119 {
 120 public:
 121     wxEventTableEntryModule() { }
 122     virtual bool OnInit() { return true; }
 123     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 124
 125     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 126 };
 127
 128 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 129
 130 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 131
 132 // ----------------------------------------------------------------------------
 133 // global variables
 134 // ----------------------------------------------------------------------------
 135
 136 // To put pending event handlers
 137 wxList *wxPendingEvents = (wxList *)NULL;
 138
 139 #if wxUSE_THREADS
 140     // protects wxPendingEvents list
 141     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 142 #endif
 143
 144 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 145
 146 // common event types are defined here, other event types are defined by the
 147 // components which use them
 148
 149 const wxEventType wxEVT_FIRST = 10000;
 150 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 151
 152 DEFINE_EVENT_TYPE(wxEVT_NULL)
 153 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 154 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 155 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 156
 157 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 158
 159 #endif // wxUSE_BASE
 160
 161 #if wxUSE_GUI
 162
 163 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 164
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
 182
 183 // Mouse event types
 184 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 185 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 186 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 187 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 188 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 189 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 190 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 191 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 192 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 193 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 194 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 195 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 196 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 197 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 198 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 199 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 200 DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
 201 DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
 202 DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
 203 DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
 204 DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
 205 DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
 206
 207 // Non-client mouse events
 208 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 209 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 210 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 211 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 213 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 220
 221 // Character input event type
 222 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 223 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 224 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 225 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 226 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 227 #if wxUSE_HOTKEY
 228 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 229 #endif
 230
 231 // Set cursor event
 232 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 233
 234 // wxScrollbar and wxSlider event identifiers
 235 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 237 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 244
 245 // Scroll events from wxWindow
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 247 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 248 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 249 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 254
 255 // System events
 256 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 257 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 258 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 259 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 260 DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
 261 DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
 262 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 263 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 264 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 265 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 266 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 267 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 268 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 269 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 270 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 271 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 272 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 273 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 274 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
 275 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 276 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 277 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 278 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 279 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 280 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 281 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 282 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 283 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 284 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 285 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 286 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 287 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 288 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 289 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 290 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 291 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 292 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 293 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 294 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 295 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 296 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 297 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 298
 299 // Clipboard events
 300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 303
 304 // Generic command events
 305 // Note: a click is a higher-level event than button down/up
 306 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 309 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 313
 314 // Help events
 315 DEFINE_EVENT_TYPE(wxEVT_HELP)
 316 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 317
 318 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 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         return m_cmdString;
 415     else
 416     {
 417 #if wxUSE_TEXTCTRL
 418         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 419         if(txt)
 420             return txt->GetValue();
 421         else
 422 #endif // wxUSE_TEXTCTRL
 423             return m_cmdString;
 424     }
 425 }
 426
 427 /*
 428  * UI update events
 429  */
 430
 431 #if wxUSE_LONGLONG
 432 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 433 #endif
 434
 435 long wxUpdateUIEvent::sm_updateInterval = 0;
 436
 437 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 438
 439 // Can we update?
 440 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 441 {
 442     // Don't update if we've switched global updating off
 443     // and this window doesn't support updates.
 444     if (win &&
 445        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 446        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 447         return false;
 448
 449     if (sm_updateInterval == -1)
 450         return false;
 451
 452     if (sm_updateInterval == 0)
 453         return true;
 454
 455 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 456     wxLongLong now = wxGetLocalTimeMillis();
 457     if (now > (sm_lastUpdate + sm_updateInterval))
 458     {
 459         return true;
 460     }
 461
 462     return false;
 463 #else
 464     // If we don't have wxStopWatch or wxLongLong, we
 465     // should err on the safe side and update now anyway.
 466     return true;
 467 #endif
 468 }
 469
 470 // Reset the update time to provide a delay until the next
 471 // time we should update
 472 void wxUpdateUIEvent::ResetUpdateTime()
 473 {
 474 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 475     if (sm_updateInterval > 0)
 476     {
 477         wxLongLong now = wxGetLocalTimeMillis();
 478         if (now > (sm_lastUpdate + sm_updateInterval))
 479         {
 480             sm_lastUpdate = now;
 481         }
 482     }
 483 #endif
 484 }
 485
 486 /*
 487  * Scroll events
 488  */
 489
 490 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 491                              int id,
 492                              int pos,
 493                              int orient)
 494     : wxCommandEvent(commandType, id)
 495 {
 496     m_extraLong = orient;
 497     m_commandInt = pos;
 498 }
 499
 500 /*
 501  * ScrollWin events
 502  */
 503
 504 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 505                                    int pos,
 506                                    int orient)
 507 {
 508     m_eventType = commandType;
 509     m_extraLong = orient;
 510     m_commandInt = pos;
 511 }
 512
 513 /*
 514  * Mouse events
 515  *
 516  */
 517
 518 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 519 {
 520     m_eventType = commandType;
 521     m_metaDown = false;
 522     m_altDown = false;
 523     m_controlDown = false;
 524     m_shiftDown = false;
 525     m_leftDown = false;
 526     m_rightDown = false;
 527     m_middleDown = false;
 528     m_aux1Down = false;
 529     m_aux2Down = false;
 530     m_x = 0;
 531     m_y = 0;
 532     m_wheelRotation = 0;
 533     m_wheelDelta = 0;
 534     m_linesPerAction = 0;
 535     m_wheelAxis = 0;
 536 }
 537
 538 void wxMouseEvent::Assign(const wxMouseEvent& event)
 539 {
 540     m_eventType = event.m_eventType;
 541
 542     m_x = event.m_x;
 543     m_y = event.m_y;
 544
 545     m_leftDown = event.m_leftDown;
 546     m_middleDown = event.m_middleDown;
 547     m_rightDown = event.m_rightDown;
 548     m_aux1Down = event.m_aux1Down;
 549     m_aux2Down = event.m_aux2Down;
 550
 551     m_controlDown = event.m_controlDown;
 552     m_shiftDown = event.m_shiftDown;
 553     m_altDown = event.m_altDown;
 554     m_metaDown = event.m_metaDown;
 555
 556     m_wheelRotation = event.m_wheelRotation;
 557     m_wheelDelta = event.m_wheelDelta;
 558     m_linesPerAction = event.m_linesPerAction;
 559     m_wheelAxis = event.m_wheelAxis;
 560 }
 561
 562 // return true if was a button dclick event
 563 bool wxMouseEvent::ButtonDClick(int but) const
 564 {
 565     switch (but)
 566     {
 567         default:
 568             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 569             // fall through
 570
 571         case wxMOUSE_BTN_ANY:
 572             return (LeftDClick() || MiddleDClick() || RightDClick() ||
 573                     Aux1DClick() || Aux2DClick());
 574
 575         case wxMOUSE_BTN_LEFT:
 576             return LeftDClick();
 577
 578         case wxMOUSE_BTN_MIDDLE:
 579             return MiddleDClick();
 580
 581         case wxMOUSE_BTN_RIGHT:
 582             return RightDClick();
 583
 584         case wxMOUSE_BTN_AUX1:
 585             return Aux1DClick();
 586
 587         case wxMOUSE_BTN_AUX2:
 588             return Aux2DClick();
 589     }
 590 }
 591
 592 // return true if was a button down event
 593 bool wxMouseEvent::ButtonDown(int but) const
 594 {
 595     switch (but)
 596     {
 597         default:
 598             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 599             // fall through
 600
 601         case wxMOUSE_BTN_ANY:
 602             return (LeftDown() || MiddleDown() || RightDown() ||
 603                     Aux1Down() || Aux2Down());
 604
 605         case wxMOUSE_BTN_LEFT:
 606             return LeftDown();
 607
 608         case wxMOUSE_BTN_MIDDLE:
 609             return MiddleDown();
 610
 611         case wxMOUSE_BTN_RIGHT:
 612             return RightDown();
 613
 614         case wxMOUSE_BTN_AUX1:
 615             return Aux1Down();
 616
 617         case wxMOUSE_BTN_AUX2:
 618             return Aux2Down();
 619     }
 620 }
 621
 622 // return true if was a button up event
 623 bool wxMouseEvent::ButtonUp(int but) const
 624 {
 625     switch (but)
 626     {
 627         default:
 628             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 629             // fall through
 630
 631         case wxMOUSE_BTN_ANY:
 632             return (LeftUp() || MiddleUp() || RightUp() ||
 633                     Aux1Up() || Aux2Up());
 634
 635         case wxMOUSE_BTN_LEFT:
 636             return LeftUp();
 637
 638         case wxMOUSE_BTN_MIDDLE:
 639             return MiddleUp();
 640
 641         case wxMOUSE_BTN_RIGHT:
 642             return RightUp();
 643
 644         case wxMOUSE_BTN_AUX1:
 645             return Aux1Up();
 646
 647         case wxMOUSE_BTN_AUX2:
 648             return Aux2Up();
 649     }
 650 }
 651
 652 // return true if the given button is currently changing state
 653 bool wxMouseEvent::Button(int but) const
 654 {
 655     switch (but)
 656     {
 657         default:
 658             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 659             // fall through
 660
 661         case wxMOUSE_BTN_ANY:
 662             return ButtonUp(wxMOUSE_BTN_ANY) ||
 663                     ButtonDown(wxMOUSE_BTN_ANY) ||
 664                         ButtonDClick(wxMOUSE_BTN_ANY);
 665
 666         case wxMOUSE_BTN_LEFT:
 667             return LeftDown() || LeftUp() || LeftDClick();
 668
 669         case wxMOUSE_BTN_MIDDLE:
 670             return MiddleDown() || MiddleUp() || MiddleDClick();
 671
 672         case wxMOUSE_BTN_RIGHT:
 673             return RightDown() || RightUp() || RightDClick();
 674
 675         case wxMOUSE_BTN_AUX1:
 676            return Aux1Down() || Aux1Up() || Aux1DClick();
 677
 678         case wxMOUSE_BTN_AUX2:
 679            return Aux2Down() || Aux2Up() || Aux2DClick();
 680     }
 681 }
 682
 683 bool wxMouseEvent::ButtonIsDown(int but) const
 684 {
 685     switch (but)
 686     {
 687         default:
 688             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 689             // fall through
 690
 691         case wxMOUSE_BTN_ANY:
 692             return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
 693
 694         case wxMOUSE_BTN_LEFT:
 695             return LeftIsDown();
 696
 697         case wxMOUSE_BTN_MIDDLE:
 698             return MiddleIsDown();
 699
 700         case wxMOUSE_BTN_RIGHT:
 701             return RightIsDown();
 702
 703         case wxMOUSE_BTN_AUX1:
 704             return Aux1IsDown();
 705
 706         case wxMOUSE_BTN_AUX2:
 707             return Aux2IsDown();
 708     }
 709 }
 710
 711 int wxMouseEvent::GetButton() const
 712 {
 713     for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
 714     {
 715         if ( Button(i) )
 716         {
 717             return i;
 718         }
 719     }
 720
 721     return wxMOUSE_BTN_NONE;
 722 }
 723
 724 // Find the logical position of the event given the DC
 725 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 726 {
 727     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 728     return pt;
 729 }
 730
 731
 732 /*
 733  * Keyboard event
 734  *
 735  */
 736
 737 wxKeyEvent::wxKeyEvent(wxEventType type)
 738 {
 739     m_eventType = type;
 740     m_shiftDown = false;
 741     m_controlDown = false;
 742     m_metaDown = false;
 743     m_altDown = false;
 744     m_keyCode = 0;
 745     m_scanCode = 0;
 746 #if wxUSE_UNICODE
 747     m_uniChar = 0;
 748 #endif
 749 }
 750
 751 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 752     : wxEvent(evt)
 753 {
 754     m_x = evt.m_x;
 755     m_y = evt.m_y;
 756
 757     m_keyCode = evt.m_keyCode;
 758
 759     m_controlDown = evt.m_controlDown;
 760     m_shiftDown = evt.m_shiftDown;
 761     m_altDown = evt.m_altDown;
 762     m_metaDown = evt.m_metaDown;
 763     m_scanCode = evt.m_scanCode;
 764     m_rawCode = evt.m_rawCode;
 765     m_rawFlags = evt.m_rawFlags;
 766
 767 #if wxUSE_UNICODE
 768     m_uniChar = evt.m_uniChar;
 769 #endif
 770 }
 771
 772 #if WXWIN_COMPATIBILITY_2_6
 773 long wxKeyEvent::KeyCode() const
 774 {
 775     return m_keyCode;
 776 }
 777 #endif // WXWIN_COMPATIBILITY_2_6
 778
 779 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 780 {
 781     SetEventType(wxEVT_CREATE);
 782     SetEventObject(win);
 783 }
 784
 785 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 786 {
 787     SetEventType(wxEVT_DESTROY);
 788     SetEventObject(win);
 789 }
 790
 791 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 792                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 793 {
 794     SetEventObject(win);
 795 }
 796
 797 // ----------------------------------------------------------------------------
 798 // wxHelpEvent
 799 // ----------------------------------------------------------------------------
 800
 801 /* static */
 802 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 803 {
 804     if ( origin == Origin_Unknown )
 805     {
 806         // assume that the event comes from the help button if it's not from
 807         // keyboard and that pressing F1 always results in the help event
 808         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 809     }
 810
 811     return origin;
 812 }
 813
 814 #endif // wxUSE_GUI
 815
 816
 817 #if wxUSE_BASE
 818
 819 // ----------------------------------------------------------------------------
 820 // wxEventHashTable
 821 // ----------------------------------------------------------------------------
 822
 823 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 824
 825 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 826
 827 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 828                 : m_table(table),
 829                   m_rebuildHash(true)
 830 {
 831     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 832
 833     m_next = sm_first;
 834     if (m_next)
 835         m_next->m_previous = this;
 836     sm_first = this;
 837 }
 838
 839 wxEventHashTable::~wxEventHashTable()
 840 {
 841     if (m_next)
 842         m_next->m_previous = m_previous;
 843     if (m_previous)
 844         m_previous->m_next = m_next;
 845     if (sm_first == this)
 846         sm_first = m_next;
 847
 848     Clear();
 849 }
 850
 851 void wxEventHashTable::Clear()
 852 {
 853     for ( size_t i = 0; i < m_size; i++ )
 854     {
 855         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 856         delete eTTnode;
 857     }
 858
 859     delete[] m_eventTypeTable;
 860     m_eventTypeTable = NULL;
 861
 862     m_size = 0;
 863 }
 864
 865 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 866
 867 // Clear all tables
 868 void wxEventHashTable::ClearAll()
 869 {
 870     wxEventHashTable* table = sm_first;
 871     while (table)
 872     {
 873         table->Clear();
 874         table = table->m_next;
 875     }
 876 }
 877
 878 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 879
 880 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 881 {
 882     if (m_rebuildHash)
 883     {
 884         InitHashTable();
 885         m_rebuildHash = false;
 886     }
 887
 888     if (!m_eventTypeTable)
 889         return false;
 890
 891     // Find all entries for the given event type.
 892     wxEventType eventType = event.GetEventType();
 893     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 894     if (eTTnode && eTTnode->eventType == eventType)
 895     {
 896         // Now start the search for an event handler
 897         // that can handle an event with the given ID.
 898         const wxEventTableEntryPointerArray&
 899             eventEntryTable = eTTnode->eventEntryTable;
 900
 901         const size_t count = eventEntryTable.GetCount();
 902         for (size_t n = 0; n < count; n++)
 903         {
 904             if ( wxEvtHandler::
 905                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 906             {
 907                 return true;
 908             }
 909         }
 910     }
 911
 912     return false;
 913 }
 914
 915 void wxEventHashTable::InitHashTable()
 916 {
 917     // Loop over the event tables and all its base tables.
 918     const wxEventTable *table = &m_table;
 919     while (table)
 920     {
 921         // Retrieve all valid event handler entries
 922         const wxEventTableEntry *entry = table->entries;
 923         while (entry->m_fn != 0)
 924         {
 925             // Add the event entry in the Hash.
 926             AddEntry(*entry);
 927
 928             entry++;
 929         }
 930
 931         table = table->baseTable;
 932     }
 933
 934     // Lets free some memory.
 935     size_t i;
 936     for(i = 0; i < m_size; i++)
 937     {
 938         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 939         if (eTTnode)
 940         {
 941             eTTnode->eventEntryTable.Shrink();
 942         }
 943     }
 944 }
 945
 946 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 947 {
 948     // This might happen 'accidentally' as the app is exiting
 949     if (!m_eventTypeTable)
 950         return;
 951
 952     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 953     EventTypeTablePointer  eTTnode = *peTTnode;
 954
 955     if (eTTnode)
 956     {
 957         if (eTTnode->eventType != entry.m_eventType)
 958         {
 959             // Resize the table!
 960             GrowEventTypeTable();
 961             // Try again to add it.
 962             AddEntry(entry);
 963             return;
 964         }
 965     }
 966     else
 967     {
 968         eTTnode = new EventTypeTable;
 969         eTTnode->eventType = entry.m_eventType;
 970         *peTTnode = eTTnode;
 971     }
 972
 973     // Fill all hash entries between entry.m_id and entry.m_lastId...
 974     eTTnode->eventEntryTable.Add(&entry);
 975 }
 976
 977 void wxEventHashTable::AllocEventTypeTable(size_t size)
 978 {
 979     m_eventTypeTable = new EventTypeTablePointer[size];
 980     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 981     m_size = size;
 982 }
 983
 984 void wxEventHashTable::GrowEventTypeTable()
 985 {
 986     size_t oldSize = m_size;
 987     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 988
 989     // TODO: Search the most optimal grow sequence
 990     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 991
 992     for ( size_t i = 0; i < oldSize; /* */ )
 993     {
 994         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 995         if (eTToldNode)
 996         {
 997             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 998             EventTypeTablePointer  eTTnode = *peTTnode;
 999
1000             // Check for collision, we don't want any.
1001             if (eTTnode)
1002             {
1003                 GrowEventTypeTable();
1004                 continue; // Don't increment the counter,
1005                           // as we still need to add this element.
1006             }
1007             else
1008             {
1009                 // Get the old value and put it in the new table.
1010                 *peTTnode = oldEventTypeTable[i];
1011             }
1012         }
1013
1014         i++;
1015     }
1016
1017     delete[] oldEventTypeTable;
1018 }
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 #if wxUSE_THREADS
1037 #  if !defined(__VISAGECPP__)
1038     m_eventsLocker = new wxCriticalSection;
1039 #  endif
1040 #endif
1041
1042     // no client data (yet)
1043     m_clientData = NULL;
1044     m_clientDataType = wxClientData_None;
1045 }
1046
1047 wxEvtHandler::~wxEvtHandler()
1048 {
1049     // Takes itself out of the list of handlers
1050     if (m_previousHandler)
1051         m_previousHandler->m_nextHandler = m_nextHandler;
1052
1053     if (m_nextHandler)
1054         m_nextHandler->m_previousHandler = m_previousHandler;
1055
1056     if (m_dynamicEvents)
1057     {
1058         for ( wxList::iterator it = m_dynamicEvents->begin(),
1059                                end = m_dynamicEvents->end();
1060               it != end;
1061               ++it )
1062         {
1063 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1064             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1065 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1066             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1067 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1068
1069             if (entry->m_callbackUserData)
1070                 delete entry->m_callbackUserData;
1071             delete entry;
1072         }
1073         delete m_dynamicEvents;
1074     };
1075
1076     if (m_pendingEvents)
1077         m_pendingEvents->DeleteContents(true);
1078     delete m_pendingEvents;
1079
1080 #if wxUSE_THREADS
1081 #  if !defined(__VISAGECPP__)
1082     delete m_eventsLocker;
1083 #  endif
1084
1085     // Remove us from wxPendingEvents if necessary.
1086     if(wxPendingEventsLocker)
1087         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1088     if ( wxPendingEvents )
1089     {
1090         // Delete all occurences of this from the list of pending events
1091         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1092     }
1093     if(wxPendingEventsLocker)
1094         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1095 #endif
1096
1097     // we only delete object data, not untyped
1098     if ( m_clientDataType == wxClientData_Object )
1099         delete m_clientObject;
1100 }
1101
1102 #if wxUSE_THREADS
1103
1104 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1105 {
1106     // check that we are really in a child thread
1107     wxASSERT_MSG( !wxThread::IsMain(),
1108                   wxT("use ProcessEvent() in main thread") );
1109
1110     AddPendingEvent(event);
1111
1112     return true;
1113 }
1114
1115 void wxEvtHandler::ClearEventLocker()
1116 {
1117 #if !defined(__VISAGECPP__)
1118     delete m_eventsLocker;
1119     m_eventsLocker = NULL;
1120 #endif
1121 }
1122
1123 #endif // wxUSE_THREADS
1124
1125 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1126 {
1127     // 1) Add event to list of pending events of this event handler
1128
1129     wxEvent *eventCopy = event.Clone();
1130
1131     // we must be able to copy the events here so the event class must
1132     // implement Clone() properly instead of just providing a NULL stab for it
1133     wxCHECK_RET( eventCopy,
1134                  _T("events of this type aren't supposed to be posted") );
1135
1136     wxENTER_CRIT_SECT( Lock() );
1137
1138     if ( !m_pendingEvents )
1139       m_pendingEvents = new wxList;
1140
1141     m_pendingEvents->Append(eventCopy);
1142
1143     wxLEAVE_CRIT_SECT( Lock() );
1144
1145     // 2) Add this event handler to list of event handlers that
1146     //    have pending events.
1147
1148     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1149
1150     if ( !wxPendingEvents )
1151         wxPendingEvents = new wxList;
1152     wxPendingEvents->Append(this);
1153
1154     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1155
1156     // 3) Inform the system that new pending events are somewhere,
1157     //    and that these should be processed in idle time.
1158     wxWakeUpIdle();
1159 }
1160
1161 void wxEvtHandler::ProcessPendingEvents()
1162 {
1163     // this method is only called by wxApp if this handler does have
1164     // pending events
1165     wxCHECK_RET( m_pendingEvents,
1166                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1167
1168     wxENTER_CRIT_SECT( Lock() );
1169
1170     // we leave the loop once we have processed all events that were present at
1171     // the start of ProcessPendingEvents because otherwise we could get into
1172     // infinite loop if the pending event handler execution resulted in another
1173     // event being posted
1174     size_t n = m_pendingEvents->size();
1175     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1176           node;
1177           node = m_pendingEvents->GetFirst() )
1178     {
1179         wxEvent *event = (wxEvent *)node->GetData();
1180
1181         // It's importan we remove event from list before processing it.
1182         // Else a nested event loop, for example from a modal dialog, might
1183         // process the same event again.
1184
1185         m_pendingEvents->Erase(node);
1186
1187         wxLEAVE_CRIT_SECT( Lock() );
1188
1189         ProcessEvent(*event);
1190
1191         delete event;
1192
1193         wxENTER_CRIT_SECT( Lock() );
1194
1195         if ( --n == 0 )
1196             break;
1197     }
1198
1199     wxLEAVE_CRIT_SECT( Lock() );
1200 }
1201
1202 /*
1203  * Event table stuff
1204  */
1205 /* static */ bool
1206 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1207                                     wxEvtHandler *handler,
1208                                     wxEvent& event)
1209 {
1210     int tableId1 = entry.m_id,
1211         tableId2 = entry.m_lastId;
1212
1213     // match only if the event type is the same and the id is either -1 in
1214     // the event table (meaning "any") or the event id matches the id
1215     // specified in the event table either exactly or by falling into
1216     // range between first and last
1217     if ((tableId1 == wxID_ANY) ||
1218         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1219         (tableId2 != wxID_ANY &&
1220          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1221     {
1222         event.Skip(false);
1223         event.m_callbackUserData = entry.m_callbackUserData;
1224
1225 #if wxUSE_EXCEPTIONS
1226         if ( wxTheApp )
1227         {
1228             // call the handler via wxApp method which allows the user to catch
1229             // any exceptions which may be thrown by any handler in the program
1230             // in one place
1231             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1232         }
1233         else
1234 #endif // wxUSE_EXCEPTIONS
1235         {
1236             // no need for an extra virtual function call
1237             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1238         }
1239
1240         if (!event.GetSkipped())
1241             return true;
1242     }
1243
1244     return false;
1245 }
1246
1247 bool wxEvtHandler::TryParent(wxEvent& event)
1248 {
1249     if ( wxTheApp && (this != wxTheApp) )
1250     {
1251         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1252         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1253         // processed appropriately via SearchEventTable.
1254         if ( event.GetEventType() != wxEVT_IDLE )
1255         {
1256             if ( wxTheApp->ProcessEvent(event) )
1257                 return true;
1258         }
1259     }
1260
1261     return false;
1262 }
1263
1264 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1265 {
1266     // allow the application to hook into event processing
1267     if ( wxTheApp )
1268     {
1269         int rc = wxTheApp->FilterEvent(event);
1270         if ( rc != -1 )
1271         {
1272             wxASSERT_MSG( rc == 1 || rc == 0,
1273                           _T("unexpected wxApp::FilterEvent return value") );
1274
1275             return rc != 0;
1276         }
1277         //else: proceed normally
1278     }
1279
1280     // An event handler can be enabled or disabled
1281     if ( GetEvtHandlerEnabled() )
1282     {
1283         // if we have a validator, it has higher priority than our own event
1284         // table
1285         if ( TryValidator(event) )
1286             return true;
1287
1288         // Handle per-instance dynamic event tables first
1289         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1290             return true;
1291
1292         // Then static per-class event tables
1293         if ( GetEventHashTable().HandleEvent(event, this) )
1294             return true;
1295     }
1296
1297     // Try going down the event handler chain
1298     if ( GetNextHandler() )
1299     {
1300         // notice that we shouldn't let the parent have the event even if the
1301         // next handler does not process it because it will have already passed
1302         // it to the parent in this case
1303         return GetNextHandler()->ProcessEvent(event);
1304     }
1305
1306     // Finally propagate the event upwards the window chain and/or to the
1307     // application object as necessary
1308     return TryParent(event);
1309 }
1310
1311
1312 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1313 {
1314     const wxEventType eventType = event.GetEventType();
1315     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1316     {
1317         const wxEventTableEntry& entry = table.entries[i];
1318         if ( eventType == entry.m_eventType )
1319         {
1320             if ( ProcessEventIfMatches(entry, this, event) )
1321                 return true;
1322         }
1323     }
1324
1325     return false;
1326 }
1327
1328 void wxEvtHandler::Connect( int id, int lastId,
1329                             int eventType,
1330                             wxObjectEventFunction func,
1331                             wxObject *userData,
1332                             wxEvtHandler* eventSink )
1333 {
1334 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1335     wxEventTableEntry *entry = new wxEventTableEntry;
1336     entry->m_eventType = eventType;
1337     entry->m_id = id;
1338     entry->m_lastId = lastId;
1339     entry->m_fn = func;
1340     entry->m_callbackUserData = userData;
1341 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1342     wxDynamicEventTableEntry *entry =
1343         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1344 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1345
1346     if (!m_dynamicEvents)
1347         m_dynamicEvents = new wxList;
1348
1349     // Insert at the front of the list so most recent additions are found first
1350     m_dynamicEvents->Insert( (wxObject*) entry );
1351 }
1352
1353 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1354                   wxObjectEventFunction func,
1355                   wxObject *userData,
1356                   wxEvtHandler* eventSink )
1357 {
1358     if (!m_dynamicEvents)
1359         return false;
1360
1361     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1362     while (node)
1363     {
1364 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1365             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1366 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1367             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1368 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1369
1370         if ((entry->m_id == id) &&
1371             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1372             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1373             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1374             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1375             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1376         {
1377             if (entry->m_callbackUserData)
1378                 delete entry->m_callbackUserData;
1379             m_dynamicEvents->Erase( node );
1380             delete entry;
1381             return true;
1382         }
1383         node = node->GetNext();
1384     }
1385     return false;
1386 }
1387
1388 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1389 {
1390     wxCHECK_MSG( m_dynamicEvents, false,
1391                  wxT("caller should check that we have dynamic events") );
1392
1393     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1394     while (node)
1395     {
1396 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1397         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1398 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1399         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1400 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1401
1402         // get next node before (maybe) calling the event handler as it could
1403         // call Disconnect() invalidating the current node
1404         node = node->GetNext();
1405
1406         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1407         {
1408             wxEvtHandler *handler =
1409 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1410                                     entry->m_eventSink ? entry->m_eventSink
1411                                                        :
1412 #endif
1413                                                          this;
1414
1415             if ( ProcessEventIfMatches(*entry, handler, event) )
1416             {
1417                 return true;
1418             }
1419         }
1420     }
1421
1422     return false;
1423 }
1424
1425 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1426 {
1427     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1428                   wxT("can't have both object and void client data") );
1429
1430     if ( m_clientObject )
1431         delete m_clientObject;
1432
1433     m_clientObject = data;
1434     m_clientDataType = wxClientData_Object;
1435 }
1436
1437 wxClientData *wxEvtHandler::DoGetClientObject() const
1438 {
1439     // it's not an error to call GetClientObject() on a window which doesn't
1440     // have client data at all - NULL will be returned
1441     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1442                   wxT("this window doesn't have object client data") );
1443
1444     return m_clientObject;
1445 }
1446
1447 void wxEvtHandler::DoSetClientData( void *data )
1448 {
1449     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1450                   wxT("can't have both object and void client data") );
1451
1452     m_clientData = data;
1453     m_clientDataType = wxClientData_Void;
1454 }
1455
1456 void *wxEvtHandler::DoGetClientData() const
1457 {
1458     // it's not an error to call GetClientData() on a window which doesn't have
1459     // client data at all - NULL will be returned
1460     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1461                   wxT("this window doesn't have void client data") );
1462
1463     return m_clientData;
1464 }
1465
1466 #endif // wxUSE_BASE
1467
1468 #if wxUSE_GUI
1469
1470 // Find a window with the focus, that is also a descendant of the given window.
1471 // This is used to determine the window to initially send commands to.
1472 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1473 {
1474     // Process events starting with the window with the focus, if any.
1475     wxWindow* focusWin = wxWindow::FindFocus();
1476     wxWindow* win = focusWin;
1477
1478     // Check if this is a descendant of this frame.
1479     // If not, win will be set to NULL.
1480     while (win)
1481     {
1482         if (win == ancestor)
1483             break;
1484         else
1485             win = win->GetParent();
1486     }
1487     if (win == (wxWindow*) NULL)
1488         focusWin = (wxWindow*) NULL;
1489
1490     return focusWin;
1491 }
1492
1493 // ----------------------------------------------------------------------------
1494 // wxEventBlocker
1495 // ----------------------------------------------------------------------------
1496
1497 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1498 {
1499     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1500
1501     m_window = win;
1502
1503     Block(type);
1504     m_window->PushEventHandler(this);
1505 }
1506
1507 wxEventBlocker::~wxEventBlocker()
1508 {
1509     wxEvtHandler *popped = m_window->PopEventHandler(false);
1510     wxCHECK_RET(popped == this,
1511         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1512 }
1513
1514 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1515 {
1516     // should this event be blocked?
1517     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1518     {
1519         wxEventType t = (wxEventType)m_eventsToBlock[i];
1520         if ( t == wxEVT_ANY || t == event.GetEventType() )
1521             return true;   // yes, it should: mark this event as processed
1522     }
1523
1524     return false;
1525 }
1526
1527 #endif // wxUSE_GUI