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 // ----------------------------------------------------------------------------
  49 // wxWin macros
  50 // ----------------------------------------------------------------------------
  51
  52 #if wxUSE_BASE
  53     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  54     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  55     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  56 #endif // wxUSE_BASE
  57
  58 #if wxUSE_GUI
  59     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  95 #endif // wxUSE_GUI
  96
  97 #if wxUSE_BASE
  98
  99 const wxEventTable *wxEvtHandler::GetEventTable() const
 100     { return &wxEvtHandler::sm_eventTable; }
 101
 102 const wxEventTable wxEvtHandler::sm_eventTable =
 103     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 104
 105 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 106     { return wxEvtHandler::sm_eventHashTable; }
 107
 108 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 109
 110 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 111     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 112
 113
 114 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 115 // leaked, so we need to manually clean up all event tables before checking for
 116 // the memory leaks when using it, however this breaks re-initializing the
 117 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 118 // event tables won't be rebuilt the next time, so disable this by default
 119 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 120
 121 class wxEventTableEntryModule: public wxModule
 122 {
 123 public:
 124     wxEventTableEntryModule() { }
 125     virtual bool OnInit() { return true; }
 126     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 127
 128     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 129 };
 130
 131 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 132
 133 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 134
 135 // ----------------------------------------------------------------------------
 136 // global variables
 137 // ----------------------------------------------------------------------------
 138
 139 // To put pending event handlers
 140 wxList *wxPendingEvents = (wxList *)NULL;
 141
 142 #if wxUSE_THREADS
 143     // protects wxPendingEvents list
 144     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 145 #endif
 146
 147 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 148
 149 // common event types are defined here, other event types are defined by the
 150 // components which use them
 151
 152 const wxEventType wxEVT_FIRST = 10000;
 153 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 154
 155 DEFINE_EVENT_TYPE(wxEVT_NULL)
 156 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 157 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 158 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 159
 160 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 161
 162 #endif // wxUSE_BASE
 163
 164 #if wxUSE_GUI
 165
 166 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 167
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 183 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 184 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
 185
 186 // Mouse event types
 187 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 188 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 189 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 190 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 191 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 192 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 193 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 194 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 195 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 196 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 197 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 198 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 199 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 200 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 201 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 202 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 203 DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
 204 DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
 205 DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
 206 DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
 207 DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
 208 DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
 209
 210 // Non-client mouse events
 211 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 213 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 220 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 221 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 222 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 223
 224 // Character input event type
 225 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 226 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 227 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 228 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 229 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 230 #if wxUSE_HOTKEY
 231 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 232 #endif
 233
 234 // Set cursor event
 235 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 236
 237 // wxScrollbar and wxSlider event identifiers
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 247
 248 // Scroll events from wxWindow
 249 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 254 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 255 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 256 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 257
 258 // System events
 259 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 260 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 261 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 262 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 263 DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
 264 DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
 265 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 266 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 267 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 268 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 269 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 270 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 271 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 272 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 273 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 274 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 275 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 276 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 277 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
 278 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 279 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 280 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 281 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 282 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 283 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 284 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 285 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 286 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 287 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 288 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 289 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 290 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 291 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 292 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 293 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 294 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 295 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 296 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 297 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 298 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 299 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 300 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 301
 302 // Clipboard events
 303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 304 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 305 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 306
 307 // Generic command events
 308 // Note: a click is a higher-level event than button down/up
 309 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 313 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 314 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 315 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 316
 317 // Help events
 318 DEFINE_EVENT_TYPE(wxEVT_HELP)
 319 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 320
 321 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 322
 323 #endif // wxUSE_GUI
 324
 325 #if wxUSE_BASE
 326
 327 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 328
 329 // ============================================================================
 330 // implementation
 331 // ============================================================================
 332
 333 // ----------------------------------------------------------------------------
 334 // event initialization
 335 // ----------------------------------------------------------------------------
 336
 337 int wxNewEventType()
 338 {
 339     // MT-FIXME
 340     static int s_lastUsedEventType = wxEVT_FIRST;
 341
 342     return s_lastUsedEventType++;
 343 }
 344
 345 // ----------------------------------------------------------------------------
 346 // wxEvent
 347 // ----------------------------------------------------------------------------
 348
 349 /*
 350  * General wxWidgets events, covering
 351  * all interesting things that might happen (button clicking, resizing,
 352  * setting text in widgets, etc.).
 353  *
 354  * For each completely new event type, derive a new event class.
 355  *
 356  */
 357
 358 wxEvent::wxEvent(int theId, wxEventType commandType )
 359 {
 360     m_eventType = commandType;
 361     m_eventObject = (wxObject *) NULL;
 362     m_timeStamp = 0;
 363     m_id = theId;
 364     m_skipped = false;
 365     m_callbackUserData = (wxObject *) NULL;
 366     m_isCommandEvent = false;
 367     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 368 }
 369
 370 wxEvent::wxEvent(const wxEvent &src)
 371     : wxObject(src)
 372     , m_eventObject(src.m_eventObject)
 373     , m_eventType(src.m_eventType)
 374     , m_timeStamp(src.m_timeStamp)
 375     , m_id(src.m_id)
 376     , m_callbackUserData(src.m_callbackUserData)
 377     , m_propagationLevel(src.m_propagationLevel)
 378     , m_skipped(src.m_skipped)
 379     , m_isCommandEvent(src.m_isCommandEvent)
 380 {
 381 }
 382
 383 #endif // wxUSE_BASE
 384
 385 #if wxUSE_GUI
 386
 387 /*
 388  * Command events
 389  *
 390  */
 391
 392 #ifdef __VISUALC__
 393     // 'this' : used in base member initializer list (for m_commandString)
 394     #pragma warning(disable:4355)
 395 #endif
 396
 397 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 398               : wxEvent(theId, commandType)
 399 {
 400     m_clientData = (char *) NULL;
 401     m_clientObject = (wxClientData *) NULL;
 402     m_extraLong = 0;
 403     m_commandInt = 0;
 404     m_isCommandEvent = true;
 405
 406     // the command events are propagated upwards by default
 407     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 408 }
 409
 410 #ifdef __VISUALC__
 411     #pragma warning(default:4355)
 412 #endif
 413
 414 wxString wxCommandEvent::GetString() const
 415 {
 416     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 417         return m_cmdString;
 418     else
 419     {
 420 #if wxUSE_TEXTCTRL
 421         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 422         if(txt)
 423             return txt->GetValue();
 424         else
 425 #endif // wxUSE_TEXTCTRL
 426             return m_cmdString;
 427     }
 428 }
 429
 430 /*
 431  * UI update events
 432  */
 433
 434 #if wxUSE_LONGLONG
 435 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 436 #endif
 437
 438 long wxUpdateUIEvent::sm_updateInterval = 0;
 439
 440 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 441
 442 // Can we update?
 443 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 444 {
 445     // Don't update if we've switched global updating off
 446     // and this window doesn't support updates.
 447     if (win &&
 448        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 449        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 450         return false;
 451
 452     if (sm_updateInterval == -1)
 453         return false;
 454
 455     if (sm_updateInterval == 0)
 456         return true;
 457
 458 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 459     wxLongLong now = wxGetLocalTimeMillis();
 460     if (now > (sm_lastUpdate + sm_updateInterval))
 461     {
 462         return true;
 463     }
 464
 465     return false;
 466 #else
 467     // If we don't have wxStopWatch or wxLongLong, we
 468     // should err on the safe side and update now anyway.
 469     return true;
 470 #endif
 471 }
 472
 473 // Reset the update time to provide a delay until the next
 474 // time we should update
 475 void wxUpdateUIEvent::ResetUpdateTime()
 476 {
 477 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 478     if (sm_updateInterval > 0)
 479     {
 480         wxLongLong now = wxGetLocalTimeMillis();
 481         if (now > (sm_lastUpdate + sm_updateInterval))
 482         {
 483             sm_lastUpdate = now;
 484         }
 485     }
 486 #endif
 487 }
 488
 489 /*
 490  * Scroll events
 491  */
 492
 493 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 494                              int id,
 495                              int pos,
 496                              int orient)
 497     : wxCommandEvent(commandType, id)
 498 {
 499     m_extraLong = orient;
 500     m_commandInt = pos;
 501 }
 502
 503 /*
 504  * ScrollWin events
 505  */
 506
 507 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 508                                    int pos,
 509                                    int orient)
 510 {
 511     m_eventType = commandType;
 512     m_extraLong = orient;
 513     m_commandInt = pos;
 514 }
 515
 516 /*
 517  * Mouse events
 518  *
 519  */
 520
 521 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 522 {
 523     m_eventType = commandType;
 524
 525     m_x = 0;
 526     m_y = 0;
 527
 528     m_leftDown = false;
 529     m_middleDown = false;
 530     m_rightDown = false;
 531     m_aux1Down = false;
 532     m_aux2Down = false;
 533
 534     m_controlDown = false;
 535     m_shiftDown = false;
 536     m_altDown = false;
 537     m_metaDown = false;
 538
 539     m_clickCount = -1;
 540
 541     m_wheelRotation = 0;
 542     m_wheelDelta = 0;
 543     m_linesPerAction = 0;
 544     m_wheelAxis = 0;
 545 }
 546
 547 void wxMouseEvent::Assign(const wxMouseEvent& event)
 548 {
 549     m_eventType = event.m_eventType;
 550
 551     m_x = event.m_x;
 552     m_y = event.m_y;
 553
 554     m_leftDown = event.m_leftDown;
 555     m_middleDown = event.m_middleDown;
 556     m_rightDown = event.m_rightDown;
 557     m_aux1Down = event.m_aux1Down;
 558     m_aux2Down = event.m_aux2Down;
 559
 560     m_controlDown = event.m_controlDown;
 561     m_shiftDown = event.m_shiftDown;
 562     m_altDown = event.m_altDown;
 563     m_metaDown = event.m_metaDown;
 564
 565     m_wheelRotation = event.m_wheelRotation;
 566     m_wheelDelta = event.m_wheelDelta;
 567     m_linesPerAction = event.m_linesPerAction;
 568     m_wheelAxis = event.m_wheelAxis;
 569 }
 570
 571 // return true if was a button dclick event
 572 bool wxMouseEvent::ButtonDClick(int but) const
 573 {
 574     switch (but)
 575     {
 576         default:
 577             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 578             // fall through
 579
 580         case wxMOUSE_BTN_ANY:
 581             return (LeftDClick() || MiddleDClick() || RightDClick() ||
 582                     Aux1DClick() || Aux2DClick());
 583
 584         case wxMOUSE_BTN_LEFT:
 585             return LeftDClick();
 586
 587         case wxMOUSE_BTN_MIDDLE:
 588             return MiddleDClick();
 589
 590         case wxMOUSE_BTN_RIGHT:
 591             return RightDClick();
 592
 593         case wxMOUSE_BTN_AUX1:
 594             return Aux1DClick();
 595
 596         case wxMOUSE_BTN_AUX2:
 597             return Aux2DClick();
 598     }
 599 }
 600
 601 // return true if was a button down event
 602 bool wxMouseEvent::ButtonDown(int but) const
 603 {
 604     switch (but)
 605     {
 606         default:
 607             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 608             // fall through
 609
 610         case wxMOUSE_BTN_ANY:
 611             return (LeftDown() || MiddleDown() || RightDown() ||
 612                     Aux1Down() || Aux2Down());
 613
 614         case wxMOUSE_BTN_LEFT:
 615             return LeftDown();
 616
 617         case wxMOUSE_BTN_MIDDLE:
 618             return MiddleDown();
 619
 620         case wxMOUSE_BTN_RIGHT:
 621             return RightDown();
 622
 623         case wxMOUSE_BTN_AUX1:
 624             return Aux1Down();
 625
 626         case wxMOUSE_BTN_AUX2:
 627             return Aux2Down();
 628     }
 629 }
 630
 631 // return true if was a button up event
 632 bool wxMouseEvent::ButtonUp(int but) const
 633 {
 634     switch (but)
 635     {
 636         default:
 637             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 638             // fall through
 639
 640         case wxMOUSE_BTN_ANY:
 641             return (LeftUp() || MiddleUp() || RightUp() ||
 642                     Aux1Up() || Aux2Up());
 643
 644         case wxMOUSE_BTN_LEFT:
 645             return LeftUp();
 646
 647         case wxMOUSE_BTN_MIDDLE:
 648             return MiddleUp();
 649
 650         case wxMOUSE_BTN_RIGHT:
 651             return RightUp();
 652
 653         case wxMOUSE_BTN_AUX1:
 654             return Aux1Up();
 655
 656         case wxMOUSE_BTN_AUX2:
 657             return Aux2Up();
 658     }
 659 }
 660
 661 // return true if the given button is currently changing state
 662 bool wxMouseEvent::Button(int but) const
 663 {
 664     switch (but)
 665     {
 666         default:
 667             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 668             // fall through
 669
 670         case wxMOUSE_BTN_ANY:
 671             return ButtonUp(wxMOUSE_BTN_ANY) ||
 672                     ButtonDown(wxMOUSE_BTN_ANY) ||
 673                         ButtonDClick(wxMOUSE_BTN_ANY);
 674
 675         case wxMOUSE_BTN_LEFT:
 676             return LeftDown() || LeftUp() || LeftDClick();
 677
 678         case wxMOUSE_BTN_MIDDLE:
 679             return MiddleDown() || MiddleUp() || MiddleDClick();
 680
 681         case wxMOUSE_BTN_RIGHT:
 682             return RightDown() || RightUp() || RightDClick();
 683
 684         case wxMOUSE_BTN_AUX1:
 685            return Aux1Down() || Aux1Up() || Aux1DClick();
 686
 687         case wxMOUSE_BTN_AUX2:
 688            return Aux2Down() || Aux2Up() || Aux2DClick();
 689     }
 690 }
 691
 692 bool wxMouseEvent::ButtonIsDown(int but) const
 693 {
 694     switch (but)
 695     {
 696         default:
 697             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 698             // fall through
 699
 700         case wxMOUSE_BTN_ANY:
 701             return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
 702
 703         case wxMOUSE_BTN_LEFT:
 704             return LeftIsDown();
 705
 706         case wxMOUSE_BTN_MIDDLE:
 707             return MiddleIsDown();
 708
 709         case wxMOUSE_BTN_RIGHT:
 710             return RightIsDown();
 711
 712         case wxMOUSE_BTN_AUX1:
 713             return Aux1IsDown();
 714
 715         case wxMOUSE_BTN_AUX2:
 716             return Aux2IsDown();
 717     }
 718 }
 719
 720 int wxMouseEvent::GetButton() const
 721 {
 722     for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
 723     {
 724         if ( Button(i) )
 725         {
 726             return i;
 727         }
 728     }
 729
 730     return wxMOUSE_BTN_NONE;
 731 }
 732
 733 // Find the logical position of the event given the DC
 734 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 735 {
 736     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 737     return pt;
 738 }
 739
 740
 741 /*
 742  * Keyboard event
 743  *
 744  */
 745
 746 wxKeyEvent::wxKeyEvent(wxEventType type)
 747 {
 748     m_eventType = type;
 749     m_shiftDown = false;
 750     m_controlDown = false;
 751     m_metaDown = false;
 752     m_altDown = false;
 753     m_keyCode = 0;
 754     m_scanCode = 0;
 755 #if wxUSE_UNICODE
 756     m_uniChar = 0;
 757 #endif
 758 }
 759
 760 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 761     : wxEvent(evt)
 762 {
 763     m_x = evt.m_x;
 764     m_y = evt.m_y;
 765
 766     m_keyCode = evt.m_keyCode;
 767
 768     m_controlDown = evt.m_controlDown;
 769     m_shiftDown = evt.m_shiftDown;
 770     m_altDown = evt.m_altDown;
 771     m_metaDown = evt.m_metaDown;
 772     m_scanCode = evt.m_scanCode;
 773     m_rawCode = evt.m_rawCode;
 774     m_rawFlags = evt.m_rawFlags;
 775
 776 #if wxUSE_UNICODE
 777     m_uniChar = evt.m_uniChar;
 778 #endif
 779 }
 780
 781 #if WXWIN_COMPATIBILITY_2_6
 782 long wxKeyEvent::KeyCode() const
 783 {
 784     return m_keyCode;
 785 }
 786 #endif // WXWIN_COMPATIBILITY_2_6
 787
 788 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 789 {
 790     SetEventType(wxEVT_CREATE);
 791     SetEventObject(win);
 792 }
 793
 794 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 795 {
 796     SetEventType(wxEVT_DESTROY);
 797     SetEventObject(win);
 798 }
 799
 800 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 801                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 802 {
 803     SetEventObject(win);
 804 }
 805
 806 // ----------------------------------------------------------------------------
 807 // wxHelpEvent
 808 // ----------------------------------------------------------------------------
 809
 810 /* static */
 811 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 812 {
 813     if ( origin == Origin_Unknown )
 814     {
 815         // assume that the event comes from the help button if it's not from
 816         // keyboard and that pressing F1 always results in the help event
 817         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 818     }
 819
 820     return origin;
 821 }
 822
 823 #endif // wxUSE_GUI
 824
 825
 826 #if wxUSE_BASE
 827
 828 // ----------------------------------------------------------------------------
 829 // wxEventHashTable
 830 // ----------------------------------------------------------------------------
 831
 832 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 833
 834 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 835
 836 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 837                 : m_table(table),
 838                   m_rebuildHash(true)
 839 {
 840     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 841
 842     m_next = sm_first;
 843     if (m_next)
 844         m_next->m_previous = this;
 845     sm_first = this;
 846 }
 847
 848 wxEventHashTable::~wxEventHashTable()
 849 {
 850     if (m_next)
 851         m_next->m_previous = m_previous;
 852     if (m_previous)
 853         m_previous->m_next = m_next;
 854     if (sm_first == this)
 855         sm_first = m_next;
 856
 857     Clear();
 858 }
 859
 860 void wxEventHashTable::Clear()
 861 {
 862     for ( size_t i = 0; i < m_size; i++ )
 863     {
 864         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 865         delete eTTnode;
 866     }
 867
 868     delete[] m_eventTypeTable;
 869     m_eventTypeTable = NULL;
 870
 871     m_size = 0;
 872 }
 873
 874 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 875
 876 // Clear all tables
 877 void wxEventHashTable::ClearAll()
 878 {
 879     wxEventHashTable* table = sm_first;
 880     while (table)
 881     {
 882         table->Clear();
 883         table = table->m_next;
 884     }
 885 }
 886
 887 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 888
 889 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 890 {
 891     if (m_rebuildHash)
 892     {
 893         InitHashTable();
 894         m_rebuildHash = false;
 895     }
 896
 897     if (!m_eventTypeTable)
 898         return false;
 899
 900     // Find all entries for the given event type.
 901     wxEventType eventType = event.GetEventType();
 902     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 903     if (eTTnode && eTTnode->eventType == eventType)
 904     {
 905         // Now start the search for an event handler
 906         // that can handle an event with the given ID.
 907         const wxEventTableEntryPointerArray&
 908             eventEntryTable = eTTnode->eventEntryTable;
 909
 910         const size_t count = eventEntryTable.GetCount();
 911         for (size_t n = 0; n < count; n++)
 912         {
 913             if ( wxEvtHandler::
 914                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 915             {
 916                 return true;
 917             }
 918         }
 919     }
 920
 921     return false;
 922 }
 923
 924 void wxEventHashTable::InitHashTable()
 925 {
 926     // Loop over the event tables and all its base tables.
 927     const wxEventTable *table = &m_table;
 928     while (table)
 929     {
 930         // Retrieve all valid event handler entries
 931         const wxEventTableEntry *entry = table->entries;
 932         while (entry->m_fn != 0)
 933         {
 934             // Add the event entry in the Hash.
 935             AddEntry(*entry);
 936
 937             entry++;
 938         }
 939
 940         table = table->baseTable;
 941     }
 942
 943     // Lets free some memory.
 944     size_t i;
 945     for(i = 0; i < m_size; i++)
 946     {
 947         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 948         if (eTTnode)
 949         {
 950             eTTnode->eventEntryTable.Shrink();
 951         }
 952     }
 953 }
 954
 955 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 956 {
 957     // This might happen 'accidentally' as the app is exiting
 958     if (!m_eventTypeTable)
 959         return;
 960
 961     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 962     EventTypeTablePointer  eTTnode = *peTTnode;
 963
 964     if (eTTnode)
 965     {
 966         if (eTTnode->eventType != entry.m_eventType)
 967         {
 968             // Resize the table!
 969             GrowEventTypeTable();
 970             // Try again to add it.
 971             AddEntry(entry);
 972             return;
 973         }
 974     }
 975     else
 976     {
 977         eTTnode = new EventTypeTable;
 978         eTTnode->eventType = entry.m_eventType;
 979         *peTTnode = eTTnode;
 980     }
 981
 982     // Fill all hash entries between entry.m_id and entry.m_lastId...
 983     eTTnode->eventEntryTable.Add(&entry);
 984 }
 985
 986 void wxEventHashTable::AllocEventTypeTable(size_t size)
 987 {
 988     m_eventTypeTable = new EventTypeTablePointer[size];
 989     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 990     m_size = size;
 991 }
 992
 993 void wxEventHashTable::GrowEventTypeTable()
 994 {
 995     size_t oldSize = m_size;
 996     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 997
 998     // TODO: Search the most optimal grow sequence
 999     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
1000
1001     for ( size_t i = 0; i < oldSize; /* */ )
1002     {
1003         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
1004         if (eTToldNode)
1005         {
1006             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
1007             EventTypeTablePointer  eTTnode = *peTTnode;
1008
1009             // Check for collision, we don't want any.
1010             if (eTTnode)
1011             {
1012                 GrowEventTypeTable();
1013                 continue; // Don't increment the counter,
1014                           // as we still need to add this element.
1015             }
1016             else
1017             {
1018                 // Get the old value and put it in the new table.
1019                 *peTTnode = oldEventTypeTable[i];
1020             }
1021         }
1022
1023         i++;
1024     }
1025
1026     delete[] oldEventTypeTable;
1027 }
1028
1029
1030 // ----------------------------------------------------------------------------
1031 // wxEvtHandler
1032 // ----------------------------------------------------------------------------
1033
1034 /*
1035  * Event handler
1036  */
1037
1038 wxEvtHandler::wxEvtHandler()
1039 {
1040     m_nextHandler = (wxEvtHandler *) NULL;
1041     m_previousHandler = (wxEvtHandler *) NULL;
1042     m_enabled = true;
1043     m_dynamicEvents = (wxList *) NULL;
1044     m_pendingEvents = (wxList *) NULL;
1045 #if wxUSE_THREADS
1046 #  if !defined(__VISAGECPP__)
1047     m_eventsLocker = new wxCriticalSection;
1048 #  endif
1049 #endif
1050
1051     // no client data (yet)
1052     m_clientData = NULL;
1053     m_clientDataType = wxClientData_None;
1054 }
1055
1056 wxEvtHandler::~wxEvtHandler()
1057 {
1058     // Takes itself out of the list of handlers
1059     if (m_previousHandler)
1060         m_previousHandler->m_nextHandler = m_nextHandler;
1061
1062     if (m_nextHandler)
1063         m_nextHandler->m_previousHandler = m_previousHandler;
1064
1065     if (m_dynamicEvents)
1066     {
1067         for ( wxList::iterator it = m_dynamicEvents->begin(),
1068                                end = m_dynamicEvents->end();
1069               it != end;
1070               ++it )
1071         {
1072 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1073             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1074 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1075             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1076 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1077
1078             if (entry->m_callbackUserData)
1079                 delete entry->m_callbackUserData;
1080             delete entry;
1081         }
1082         delete m_dynamicEvents;
1083     };
1084
1085     if (m_pendingEvents)
1086         m_pendingEvents->DeleteContents(true);
1087     delete m_pendingEvents;
1088
1089 #if wxUSE_THREADS
1090 #  if !defined(__VISAGECPP__)
1091     delete m_eventsLocker;
1092 #  endif
1093
1094     // Remove us from wxPendingEvents if necessary.
1095     if(wxPendingEventsLocker)
1096         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1097     if ( wxPendingEvents )
1098     {
1099         // Delete all occurences of this from the list of pending events
1100         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1101     }
1102     if(wxPendingEventsLocker)
1103         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1104 #endif
1105
1106     // we only delete object data, not untyped
1107     if ( m_clientDataType == wxClientData_Object )
1108         delete m_clientObject;
1109 }
1110
1111 #if wxUSE_THREADS
1112
1113 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1114 {
1115     // check that we are really in a child thread
1116     wxASSERT_MSG( !wxThread::IsMain(),
1117                   wxT("use ProcessEvent() in main thread") );
1118
1119     AddPendingEvent(event);
1120
1121     return true;
1122 }
1123
1124 void wxEvtHandler::ClearEventLocker()
1125 {
1126 #if !defined(__VISAGECPP__)
1127     delete m_eventsLocker;
1128     m_eventsLocker = NULL;
1129 #endif
1130 }
1131
1132 #endif // wxUSE_THREADS
1133
1134 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1135 {
1136     // 1) Add event to list of pending events of this event handler
1137
1138     wxEvent *eventCopy = event.Clone();
1139
1140     // we must be able to copy the events here so the event class must
1141     // implement Clone() properly instead of just providing a NULL stab for it
1142     wxCHECK_RET( eventCopy,
1143                  _T("events of this type aren't supposed to be posted") );
1144
1145     wxENTER_CRIT_SECT( Lock() );
1146
1147     if ( !m_pendingEvents )
1148       m_pendingEvents = new wxList;
1149
1150     m_pendingEvents->Append(eventCopy);
1151
1152     wxLEAVE_CRIT_SECT( Lock() );
1153
1154     // 2) Add this event handler to list of event handlers that
1155     //    have pending events.
1156
1157     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1158
1159     if ( !wxPendingEvents )
1160         wxPendingEvents = new wxList;
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     // this method is only called by wxApp if this handler does have
1173     // pending events
1174     wxCHECK_RET( m_pendingEvents,
1175                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1176
1177     wxENTER_CRIT_SECT( Lock() );
1178
1179     // we leave the loop once we have processed all events that were present at
1180     // the start of ProcessPendingEvents because otherwise we could get into
1181     // infinite loop if the pending event handler execution resulted in another
1182     // event being posted
1183     size_t n = m_pendingEvents->size();
1184     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1185           node;
1186           node = m_pendingEvents->GetFirst() )
1187     {
1188         wxEvent *event = (wxEvent *)node->GetData();
1189
1190         // It's importan we remove event from list before processing it.
1191         // Else a nested event loop, for example from a modal dialog, might
1192         // process the same event again.
1193
1194         m_pendingEvents->Erase(node);
1195
1196         wxLEAVE_CRIT_SECT( Lock() );
1197
1198         ProcessEvent(*event);
1199
1200         delete event;
1201
1202         wxENTER_CRIT_SECT( Lock() );
1203
1204         if ( --n == 0 )
1205             break;
1206     }
1207
1208     wxLEAVE_CRIT_SECT( Lock() );
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 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1380     wxEventTableEntry *entry = new wxEventTableEntry;
1381     entry->m_eventType = eventType;
1382     entry->m_id = id;
1383     entry->m_lastId = lastId;
1384     entry->m_fn = func;
1385     entry->m_callbackUserData = userData;
1386 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1387     wxDynamicEventTableEntry *entry =
1388         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1389 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1390
1391     if (!m_dynamicEvents)
1392         m_dynamicEvents = new wxList;
1393
1394     // Insert at the front of the list so most recent additions are found first
1395     m_dynamicEvents->Insert( (wxObject*) entry );
1396 }
1397
1398 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1399                   wxObjectEventFunction func,
1400                   wxObject *userData,
1401                   wxEvtHandler* eventSink )
1402 {
1403     if (!m_dynamicEvents)
1404         return false;
1405
1406     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1407     while (node)
1408     {
1409 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1410             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1411 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1412             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1413 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1414
1415         if ((entry->m_id == id) &&
1416             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1417             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1418             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1419             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1420             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1421         {
1422             if (entry->m_callbackUserData)
1423                 delete entry->m_callbackUserData;
1424             m_dynamicEvents->Erase( node );
1425             delete entry;
1426             return true;
1427         }
1428         node = node->GetNext();
1429     }
1430     return false;
1431 }
1432
1433 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1434 {
1435     wxCHECK_MSG( m_dynamicEvents, false,
1436                  wxT("caller should check that we have dynamic events") );
1437
1438     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1439     while (node)
1440     {
1441 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1442         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1443 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1444         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1445 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1446
1447         // get next node before (maybe) calling the event handler as it could
1448         // call Disconnect() invalidating the current node
1449         node = node->GetNext();
1450
1451         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1452         {
1453             wxEvtHandler *handler =
1454 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1455                                     entry->m_eventSink ? entry->m_eventSink
1456                                                        :
1457 #endif
1458                                                          this;
1459
1460             if ( ProcessEventIfMatches(*entry, handler, event) )
1461             {
1462                 return true;
1463             }
1464         }
1465     }
1466
1467     return false;
1468 }
1469
1470 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1471 {
1472     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1473                   wxT("can't have both object and void client data") );
1474
1475     if ( m_clientObject )
1476         delete m_clientObject;
1477
1478     m_clientObject = data;
1479     m_clientDataType = wxClientData_Object;
1480 }
1481
1482 wxClientData *wxEvtHandler::DoGetClientObject() const
1483 {
1484     // it's not an error to call GetClientObject() on a window which doesn't
1485     // have client data at all - NULL will be returned
1486     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1487                   wxT("this window doesn't have object client data") );
1488
1489     return m_clientObject;
1490 }
1491
1492 void wxEvtHandler::DoSetClientData( void *data )
1493 {
1494     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1495                   wxT("can't have both object and void client data") );
1496
1497     m_clientData = data;
1498     m_clientDataType = wxClientData_Void;
1499 }
1500
1501 void *wxEvtHandler::DoGetClientData() const
1502 {
1503     // it's not an error to call GetClientData() on a window which doesn't have
1504     // client data at all - NULL will be returned
1505     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1506                   wxT("this window doesn't have void client data") );
1507
1508     return m_clientData;
1509 }
1510
1511 #endif // wxUSE_BASE
1512
1513 #if wxUSE_GUI
1514
1515 // Find a window with the focus, that is also a descendant of the given window.
1516 // This is used to determine the window to initially send commands to.
1517 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1518 {
1519     // Process events starting with the window with the focus, if any.
1520     wxWindow* focusWin = wxWindow::FindFocus();
1521     wxWindow* win = focusWin;
1522
1523     // Check if this is a descendant of this frame.
1524     // If not, win will be set to NULL.
1525     while (win)
1526     {
1527         if (win == ancestor)
1528             break;
1529         else
1530             win = win->GetParent();
1531     }
1532     if (win == (wxWindow*) NULL)
1533         focusWin = (wxWindow*) NULL;
1534
1535     return focusWin;
1536 }
1537
1538 // ----------------------------------------------------------------------------
1539 // wxEventBlocker
1540 // ----------------------------------------------------------------------------
1541
1542 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1543 {
1544     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1545
1546     m_window = win;
1547
1548     Block(type);
1549     m_window->PushEventHandler(this);
1550 }
1551
1552 wxEventBlocker::~wxEventBlocker()
1553 {
1554     wxEvtHandler *popped = m_window->PopEventHandler(false);
1555     wxCHECK_RET(popped == this,
1556         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1557 }
1558
1559 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1560 {
1561     // should this event be blocked?
1562     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1563     {
1564         wxEventType t = (wxEventType)m_eventsToBlock[i];
1565         if ( t == wxEVT_ANY || t == event.GetEventType() )
1566             return true;   // yes, it should: mark this event as processed
1567     }
1568
1569     return false;
1570 }
1571
1572 #endif // wxUSE_GUI