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 // ----------------------------------------------------------------------------
  47 // wxWin macros
  48 // ----------------------------------------------------------------------------
  49
  50 #if wxUSE_BASE
  51     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  52     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  53     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  54 #endif // wxUSE_BASE
  55
  56 #if wxUSE_GUI
  57     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  58     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  59     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  93 #endif // wxUSE_GUI
  94
  95 #if wxUSE_BASE
  96
  97 const wxEventTable *wxEvtHandler::GetEventTable() const
  98     { return &wxEvtHandler::sm_eventTable; }
  99
 100 const wxEventTable wxEvtHandler::sm_eventTable =
 101     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 102
 103 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 104     { return wxEvtHandler::sm_eventHashTable; }
 105
 106 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 107
 108 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 109     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 110
 111
 112 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 113 // leaked, so we need to manually clean up all event tables before checking for
 114 // the memory leaks when using it, however this breaks re-initializing the
 115 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 116 // event tables won't be rebuilt the next time, so disable this by default
 117 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 118
 119 class wxEventTableEntryModule: public wxModule
 120 {
 121 public:
 122     wxEventTableEntryModule() { }
 123     virtual bool OnInit() { return true; }
 124     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 125
 126     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 127 };
 128
 129 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 130
 131 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 132
 133 // ----------------------------------------------------------------------------
 134 // global variables
 135 // ----------------------------------------------------------------------------
 136
 137 // To put pending event handlers
 138 wxList *wxPendingEvents = (wxList *)NULL;
 139
 140 #if wxUSE_THREADS
 141     // protects wxPendingEvents list
 142     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 143 #endif
 144
 145 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 146
 147 // common event types are defined here, other event types are defined by the
 148 // components which use them
 149
 150 const wxEventType wxEVT_FIRST = 10000;
 151 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 152
 153 DEFINE_EVENT_TYPE(wxEVT_NULL)
 154 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 155 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 156 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 157
 158 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 159
 160 #endif // wxUSE_BASE
 161
 162 #if wxUSE_GUI
 163
 164 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 165
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
 183
 184 // Mouse event types
 185 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 186 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 187 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 188 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 189 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 190 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 191 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 192 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 193 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 194 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 195 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 196 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 197 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 198 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 199 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 200 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 201 DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
 202 DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
 203 DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
 204 DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
 205 DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
 206 DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
 207
 208 // Non-client mouse events
 209 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 210 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 211 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 213 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 220 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 221
 222 // Character input event type
 223 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 224 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 225 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 226 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 227 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 228 #if wxUSE_HOTKEY
 229 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 230 #endif
 231
 232 // Set cursor event
 233 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 234
 235 // wxScrollbar and wxSlider event identifiers
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 237 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 245
 246 // Scroll events from wxWindow
 247 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 248 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 249 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 254 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 255
 256 // System events
 257 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 258 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 259 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 260 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 261 DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
 262 DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
 263 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 264 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 265 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 266 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 267 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 268 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 269 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 270 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 271 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 272 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 273 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 274 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 275 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
 276 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 277 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 278 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 279 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 280 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 281 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 282 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 283 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 284 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 285 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 286 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 287 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 288 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 289 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 290 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 291 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 292 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 293 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 294 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 295 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 296 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 297 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 298 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 299
 300 // Clipboard events
 301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 304
 305 // Generic command events
 306 // Note: a click is a higher-level event than button down/up
 307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 309 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 313 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 314
 315 // Help events
 316 DEFINE_EVENT_TYPE(wxEVT_HELP)
 317 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 318
 319 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 320
 321 #endif // wxUSE_GUI
 322
 323 #if wxUSE_BASE
 324
 325 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 326
 327 // ============================================================================
 328 // implementation
 329 // ============================================================================
 330
 331 // ----------------------------------------------------------------------------
 332 // event initialization
 333 // ----------------------------------------------------------------------------
 334
 335 int wxNewEventType()
 336 {
 337     // MT-FIXME
 338     static int s_lastUsedEventType = wxEVT_FIRST;
 339
 340     return s_lastUsedEventType++;
 341 }
 342
 343 // ----------------------------------------------------------------------------
 344 // wxEvent
 345 // ----------------------------------------------------------------------------
 346
 347 /*
 348  * General wxWidgets events, covering
 349  * all interesting things that might happen (button clicking, resizing,
 350  * setting text in widgets, etc.).
 351  *
 352  * For each completely new event type, derive a new event class.
 353  *
 354  */
 355
 356 wxEvent::wxEvent(int theId, wxEventType commandType )
 357 {
 358     m_eventType = commandType;
 359     m_eventObject = (wxObject *) NULL;
 360     m_timeStamp = 0;
 361     m_id = theId;
 362     m_skipped = false;
 363     m_callbackUserData = (wxObject *) NULL;
 364     m_isCommandEvent = false;
 365     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 366 }
 367
 368 wxEvent::wxEvent(const wxEvent &src)
 369     : wxObject(src)
 370     , m_eventObject(src.m_eventObject)
 371     , m_eventType(src.m_eventType)
 372     , m_timeStamp(src.m_timeStamp)
 373     , m_id(src.m_id)
 374     , m_callbackUserData(src.m_callbackUserData)
 375     , m_propagationLevel(src.m_propagationLevel)
 376     , m_skipped(src.m_skipped)
 377     , m_isCommandEvent(src.m_isCommandEvent)
 378 {
 379 }
 380
 381 #endif // wxUSE_BASE
 382
 383 #if wxUSE_GUI
 384
 385 /*
 386  * Command events
 387  *
 388  */
 389
 390 #ifdef __VISUALC__
 391     // 'this' : used in base member initializer list (for m_commandString)
 392     #pragma warning(disable:4355)
 393 #endif
 394
 395 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 396               : wxEvent(theId, commandType)
 397 {
 398     m_clientData = (char *) NULL;
 399     m_clientObject = (wxClientData *) NULL;
 400     m_extraLong = 0;
 401     m_commandInt = 0;
 402     m_isCommandEvent = true;
 403
 404     // the command events are propagated upwards by default
 405     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 406 }
 407
 408 #ifdef __VISUALC__
 409     #pragma warning(default:4355)
 410 #endif
 411
 412 wxString wxCommandEvent::GetString() const
 413 {
 414     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 415         return m_cmdString;
 416     else
 417     {
 418 #if wxUSE_TEXTCTRL
 419         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 420         if(txt)
 421             return txt->GetValue();
 422         else
 423 #endif // wxUSE_TEXTCTRL
 424             return m_cmdString;
 425     }
 426 }
 427
 428 /*
 429  * UI update events
 430  */
 431
 432 #if wxUSE_LONGLONG
 433 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 434 #endif
 435
 436 long wxUpdateUIEvent::sm_updateInterval = 0;
 437
 438 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 439
 440 // Can we update?
 441 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 442 {
 443     // Don't update if we've switched global updating off
 444     // and this window doesn't support updates.
 445     if (win &&
 446        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 447        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 448         return false;
 449
 450     if (sm_updateInterval == -1)
 451         return false;
 452
 453     if (sm_updateInterval == 0)
 454         return true;
 455
 456 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 457     wxLongLong now = wxGetLocalTimeMillis();
 458     if (now > (sm_lastUpdate + sm_updateInterval))
 459     {
 460         return true;
 461     }
 462
 463     return false;
 464 #else
 465     // If we don't have wxStopWatch or wxLongLong, we
 466     // should err on the safe side and update now anyway.
 467     return true;
 468 #endif
 469 }
 470
 471 // Reset the update time to provide a delay until the next
 472 // time we should update
 473 void wxUpdateUIEvent::ResetUpdateTime()
 474 {
 475 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 476     if (sm_updateInterval > 0)
 477     {
 478         wxLongLong now = wxGetLocalTimeMillis();
 479         if (now > (sm_lastUpdate + sm_updateInterval))
 480         {
 481             sm_lastUpdate = now;
 482         }
 483     }
 484 #endif
 485 }
 486
 487 /*
 488  * Scroll events
 489  */
 490
 491 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 492                              int id,
 493                              int pos,
 494                              int orient)
 495     : wxCommandEvent(commandType, id)
 496 {
 497     m_extraLong = orient;
 498     m_commandInt = pos;
 499 }
 500
 501 /*
 502  * ScrollWin events
 503  */
 504
 505 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 506                                    int pos,
 507                                    int orient)
 508 {
 509     m_eventType = commandType;
 510     m_extraLong = orient;
 511     m_commandInt = pos;
 512 }
 513
 514 /*
 515  * Mouse events
 516  *
 517  */
 518
 519 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 520 {
 521     m_eventType = commandType;
 522
 523     m_x = 0;
 524     m_y = 0;
 525
 526     m_leftDown = false;
 527     m_middleDown = false;
 528     m_rightDown = false;
 529     m_aux1Down = false;
 530     m_aux2Down = false;
 531
 532     m_controlDown = false;
 533     m_shiftDown = false;
 534     m_altDown = false;
 535     m_metaDown = false;
 536
 537     m_clickCount = -1;
 538
 539     m_wheelRotation = 0;
 540     m_wheelDelta = 0;
 541     m_linesPerAction = 0;
 542     m_wheelAxis = 0;
 543 }
 544
 545 void wxMouseEvent::Assign(const wxMouseEvent& event)
 546 {
 547     m_eventType = event.m_eventType;
 548
 549     m_x = event.m_x;
 550     m_y = event.m_y;
 551
 552     m_leftDown = event.m_leftDown;
 553     m_middleDown = event.m_middleDown;
 554     m_rightDown = event.m_rightDown;
 555     m_aux1Down = event.m_aux1Down;
 556     m_aux2Down = event.m_aux2Down;
 557
 558     m_controlDown = event.m_controlDown;
 559     m_shiftDown = event.m_shiftDown;
 560     m_altDown = event.m_altDown;
 561     m_metaDown = event.m_metaDown;
 562
 563     m_wheelRotation = event.m_wheelRotation;
 564     m_wheelDelta = event.m_wheelDelta;
 565     m_linesPerAction = event.m_linesPerAction;
 566     m_wheelAxis = event.m_wheelAxis;
 567 }
 568
 569 // return true if was a button dclick event
 570 bool wxMouseEvent::ButtonDClick(int but) const
 571 {
 572     switch (but)
 573     {
 574         default:
 575             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 576             // fall through
 577
 578         case wxMOUSE_BTN_ANY:
 579             return (LeftDClick() || MiddleDClick() || RightDClick() ||
 580                     Aux1DClick() || Aux2DClick());
 581
 582         case wxMOUSE_BTN_LEFT:
 583             return LeftDClick();
 584
 585         case wxMOUSE_BTN_MIDDLE:
 586             return MiddleDClick();
 587
 588         case wxMOUSE_BTN_RIGHT:
 589             return RightDClick();
 590
 591         case wxMOUSE_BTN_AUX1:
 592             return Aux1DClick();
 593
 594         case wxMOUSE_BTN_AUX2:
 595             return Aux2DClick();
 596     }
 597 }
 598
 599 // return true if was a button down event
 600 bool wxMouseEvent::ButtonDown(int but) const
 601 {
 602     switch (but)
 603     {
 604         default:
 605             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 606             // fall through
 607
 608         case wxMOUSE_BTN_ANY:
 609             return (LeftDown() || MiddleDown() || RightDown() ||
 610                     Aux1Down() || Aux2Down());
 611
 612         case wxMOUSE_BTN_LEFT:
 613             return LeftDown();
 614
 615         case wxMOUSE_BTN_MIDDLE:
 616             return MiddleDown();
 617
 618         case wxMOUSE_BTN_RIGHT:
 619             return RightDown();
 620
 621         case wxMOUSE_BTN_AUX1:
 622             return Aux1Down();
 623
 624         case wxMOUSE_BTN_AUX2:
 625             return Aux2Down();
 626     }
 627 }
 628
 629 // return true if was a button up event
 630 bool wxMouseEvent::ButtonUp(int but) const
 631 {
 632     switch (but)
 633     {
 634         default:
 635             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 636             // fall through
 637
 638         case wxMOUSE_BTN_ANY:
 639             return (LeftUp() || MiddleUp() || RightUp() ||
 640                     Aux1Up() || Aux2Up());
 641
 642         case wxMOUSE_BTN_LEFT:
 643             return LeftUp();
 644
 645         case wxMOUSE_BTN_MIDDLE:
 646             return MiddleUp();
 647
 648         case wxMOUSE_BTN_RIGHT:
 649             return RightUp();
 650
 651         case wxMOUSE_BTN_AUX1:
 652             return Aux1Up();
 653
 654         case wxMOUSE_BTN_AUX2:
 655             return Aux2Up();
 656     }
 657 }
 658
 659 // return true if the given button is currently changing state
 660 bool wxMouseEvent::Button(int but) const
 661 {
 662     switch (but)
 663     {
 664         default:
 665             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 666             // fall through
 667
 668         case wxMOUSE_BTN_ANY:
 669             return ButtonUp(wxMOUSE_BTN_ANY) ||
 670                     ButtonDown(wxMOUSE_BTN_ANY) ||
 671                         ButtonDClick(wxMOUSE_BTN_ANY);
 672
 673         case wxMOUSE_BTN_LEFT:
 674             return LeftDown() || LeftUp() || LeftDClick();
 675
 676         case wxMOUSE_BTN_MIDDLE:
 677             return MiddleDown() || MiddleUp() || MiddleDClick();
 678
 679         case wxMOUSE_BTN_RIGHT:
 680             return RightDown() || RightUp() || RightDClick();
 681
 682         case wxMOUSE_BTN_AUX1:
 683            return Aux1Down() || Aux1Up() || Aux1DClick();
 684
 685         case wxMOUSE_BTN_AUX2:
 686            return Aux2Down() || Aux2Up() || Aux2DClick();
 687     }
 688 }
 689
 690 bool wxMouseEvent::ButtonIsDown(int but) const
 691 {
 692     switch (but)
 693     {
 694         default:
 695             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 696             // fall through
 697
 698         case wxMOUSE_BTN_ANY:
 699             return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
 700
 701         case wxMOUSE_BTN_LEFT:
 702             return LeftIsDown();
 703
 704         case wxMOUSE_BTN_MIDDLE:
 705             return MiddleIsDown();
 706
 707         case wxMOUSE_BTN_RIGHT:
 708             return RightIsDown();
 709
 710         case wxMOUSE_BTN_AUX1:
 711             return Aux1IsDown();
 712
 713         case wxMOUSE_BTN_AUX2:
 714             return Aux2IsDown();
 715     }
 716 }
 717
 718 int wxMouseEvent::GetButton() const
 719 {
 720     for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
 721     {
 722         if ( Button(i) )
 723         {
 724             return i;
 725         }
 726     }
 727
 728     return wxMOUSE_BTN_NONE;
 729 }
 730
 731 // Find the logical position of the event given the DC
 732 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 733 {
 734     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 735     return pt;
 736 }
 737
 738
 739 /*
 740  * Keyboard event
 741  *
 742  */
 743
 744 wxKeyEvent::wxKeyEvent(wxEventType type)
 745 {
 746     m_eventType = type;
 747     m_shiftDown = false;
 748     m_controlDown = false;
 749     m_metaDown = false;
 750     m_altDown = false;
 751     m_keyCode = 0;
 752     m_scanCode = 0;
 753 #if wxUSE_UNICODE
 754     m_uniChar = 0;
 755 #endif
 756 }
 757
 758 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 759     : wxEvent(evt)
 760 {
 761     m_x = evt.m_x;
 762     m_y = evt.m_y;
 763
 764     m_keyCode = evt.m_keyCode;
 765
 766     m_controlDown = evt.m_controlDown;
 767     m_shiftDown = evt.m_shiftDown;
 768     m_altDown = evt.m_altDown;
 769     m_metaDown = evt.m_metaDown;
 770     m_scanCode = evt.m_scanCode;
 771     m_rawCode = evt.m_rawCode;
 772     m_rawFlags = evt.m_rawFlags;
 773
 774 #if wxUSE_UNICODE
 775     m_uniChar = evt.m_uniChar;
 776 #endif
 777 }
 778
 779 #if WXWIN_COMPATIBILITY_2_6
 780 long wxKeyEvent::KeyCode() const
 781 {
 782     return m_keyCode;
 783 }
 784 #endif // WXWIN_COMPATIBILITY_2_6
 785
 786 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 787 {
 788     SetEventType(wxEVT_CREATE);
 789     SetEventObject(win);
 790 }
 791
 792 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 793 {
 794     SetEventType(wxEVT_DESTROY);
 795     SetEventObject(win);
 796 }
 797
 798 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 799                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 800 {
 801     SetEventObject(win);
 802 }
 803
 804 // ----------------------------------------------------------------------------
 805 // wxHelpEvent
 806 // ----------------------------------------------------------------------------
 807
 808 /* static */
 809 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 810 {
 811     if ( origin == Origin_Unknown )
 812     {
 813         // assume that the event comes from the help button if it's not from
 814         // keyboard and that pressing F1 always results in the help event
 815         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 816     }
 817
 818     return origin;
 819 }
 820
 821 #endif // wxUSE_GUI
 822
 823
 824 #if wxUSE_BASE
 825
 826 // ----------------------------------------------------------------------------
 827 // wxEventHashTable
 828 // ----------------------------------------------------------------------------
 829
 830 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 831
 832 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 833
 834 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 835                 : m_table(table),
 836                   m_rebuildHash(true)
 837 {
 838     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 839
 840     m_next = sm_first;
 841     if (m_next)
 842         m_next->m_previous = this;
 843     sm_first = this;
 844 }
 845
 846 wxEventHashTable::~wxEventHashTable()
 847 {
 848     if (m_next)
 849         m_next->m_previous = m_previous;
 850     if (m_previous)
 851         m_previous->m_next = m_next;
 852     if (sm_first == this)
 853         sm_first = m_next;
 854
 855     Clear();
 856 }
 857
 858 void wxEventHashTable::Clear()
 859 {
 860     for ( size_t i = 0; i < m_size; i++ )
 861     {
 862         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 863         delete eTTnode;
 864     }
 865
 866     delete[] m_eventTypeTable;
 867     m_eventTypeTable = NULL;
 868
 869     m_size = 0;
 870 }
 871
 872 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 873
 874 // Clear all tables
 875 void wxEventHashTable::ClearAll()
 876 {
 877     wxEventHashTable* table = sm_first;
 878     while (table)
 879     {
 880         table->Clear();
 881         table = table->m_next;
 882     }
 883 }
 884
 885 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 886
 887 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 888 {
 889     if (m_rebuildHash)
 890     {
 891         InitHashTable();
 892         m_rebuildHash = false;
 893     }
 894
 895     if (!m_eventTypeTable)
 896         return false;
 897
 898     // Find all entries for the given event type.
 899     wxEventType eventType = event.GetEventType();
 900     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 901     if (eTTnode && eTTnode->eventType == eventType)
 902     {
 903         // Now start the search for an event handler
 904         // that can handle an event with the given ID.
 905         const wxEventTableEntryPointerArray&
 906             eventEntryTable = eTTnode->eventEntryTable;
 907
 908         const size_t count = eventEntryTable.GetCount();
 909         for (size_t n = 0; n < count; n++)
 910         {
 911             if ( wxEvtHandler::
 912                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 913             {
 914                 return true;
 915             }
 916         }
 917     }
 918
 919     return false;
 920 }
 921
 922 void wxEventHashTable::InitHashTable()
 923 {
 924     // Loop over the event tables and all its base tables.
 925     const wxEventTable *table = &m_table;
 926     while (table)
 927     {
 928         // Retrieve all valid event handler entries
 929         const wxEventTableEntry *entry = table->entries;
 930         while (entry->m_fn != 0)
 931         {
 932             // Add the event entry in the Hash.
 933             AddEntry(*entry);
 934
 935             entry++;
 936         }
 937
 938         table = table->baseTable;
 939     }
 940
 941     // Lets free some memory.
 942     size_t i;
 943     for(i = 0; i < m_size; i++)
 944     {
 945         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 946         if (eTTnode)
 947         {
 948             eTTnode->eventEntryTable.Shrink();
 949         }
 950     }
 951 }
 952
 953 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 954 {
 955     // This might happen 'accidentally' as the app is exiting
 956     if (!m_eventTypeTable)
 957         return;
 958
 959     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 960     EventTypeTablePointer  eTTnode = *peTTnode;
 961
 962     if (eTTnode)
 963     {
 964         if (eTTnode->eventType != entry.m_eventType)
 965         {
 966             // Resize the table!
 967             GrowEventTypeTable();
 968             // Try again to add it.
 969             AddEntry(entry);
 970             return;
 971         }
 972     }
 973     else
 974     {
 975         eTTnode = new EventTypeTable;
 976         eTTnode->eventType = entry.m_eventType;
 977         *peTTnode = eTTnode;
 978     }
 979
 980     // Fill all hash entries between entry.m_id and entry.m_lastId...
 981     eTTnode->eventEntryTable.Add(&entry);
 982 }
 983
 984 void wxEventHashTable::AllocEventTypeTable(size_t size)
 985 {
 986     m_eventTypeTable = new EventTypeTablePointer[size];
 987     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 988     m_size = size;
 989 }
 990
 991 void wxEventHashTable::GrowEventTypeTable()
 992 {
 993     size_t oldSize = m_size;
 994     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 995
 996     // TODO: Search the most optimal grow sequence
 997     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 998
 999     for ( size_t i = 0; i < oldSize; /* */ )
1000     {
1001         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
1002         if (eTToldNode)
1003         {
1004             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
1005             EventTypeTablePointer  eTTnode = *peTTnode;
1006
1007             // Check for collision, we don't want any.
1008             if (eTTnode)
1009             {
1010                 GrowEventTypeTable();
1011                 continue; // Don't increment the counter,
1012                           // as we still need to add this element.
1013             }
1014             else
1015             {
1016                 // Get the old value and put it in the new table.
1017                 *peTTnode = oldEventTypeTable[i];
1018             }
1019         }
1020
1021         i++;
1022     }
1023
1024     delete[] oldEventTypeTable;
1025 }
1026
1027
1028 // ----------------------------------------------------------------------------
1029 // wxEvtHandler
1030 // ----------------------------------------------------------------------------
1031
1032 /*
1033  * Event handler
1034  */
1035
1036 wxEvtHandler::wxEvtHandler()
1037 {
1038     m_nextHandler = (wxEvtHandler *) NULL;
1039     m_previousHandler = (wxEvtHandler *) NULL;
1040     m_enabled = true;
1041     m_dynamicEvents = (wxList *) NULL;
1042     m_pendingEvents = (wxList *) NULL;
1043 #if wxUSE_THREADS
1044 #  if !defined(__VISAGECPP__)
1045     m_eventsLocker = new wxCriticalSection;
1046 #  endif
1047 #endif
1048
1049     // no client data (yet)
1050     m_clientData = NULL;
1051     m_clientDataType = wxClientData_None;
1052 }
1053
1054 wxEvtHandler::~wxEvtHandler()
1055 {
1056     // Takes itself out of the list of handlers
1057     if (m_previousHandler)
1058         m_previousHandler->m_nextHandler = m_nextHandler;
1059
1060     if (m_nextHandler)
1061         m_nextHandler->m_previousHandler = m_previousHandler;
1062
1063     if (m_dynamicEvents)
1064     {
1065         for ( wxList::iterator it = m_dynamicEvents->begin(),
1066                                end = m_dynamicEvents->end();
1067               it != end;
1068               ++it )
1069         {
1070 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1071             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1072 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1073             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1074 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1075
1076             if (entry->m_callbackUserData)
1077                 delete entry->m_callbackUserData;
1078             delete entry;
1079         }
1080         delete m_dynamicEvents;
1081     };
1082
1083     if (m_pendingEvents)
1084         m_pendingEvents->DeleteContents(true);
1085     delete m_pendingEvents;
1086
1087 #if wxUSE_THREADS
1088 #  if !defined(__VISAGECPP__)
1089     delete m_eventsLocker;
1090 #  endif
1091
1092     // Remove us from wxPendingEvents if necessary.
1093     if(wxPendingEventsLocker)
1094         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1095     if ( wxPendingEvents )
1096     {
1097         // Delete all occurences of this from the list of pending events
1098         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1099     }
1100     if(wxPendingEventsLocker)
1101         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1102 #endif
1103
1104     // we only delete object data, not untyped
1105     if ( m_clientDataType == wxClientData_Object )
1106         delete m_clientObject;
1107 }
1108
1109 #if wxUSE_THREADS
1110
1111 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1112 {
1113     // check that we are really in a child thread
1114     wxASSERT_MSG( !wxThread::IsMain(),
1115                   wxT("use ProcessEvent() in main thread") );
1116
1117     AddPendingEvent(event);
1118
1119     return true;
1120 }
1121
1122 void wxEvtHandler::ClearEventLocker()
1123 {
1124 #if !defined(__VISAGECPP__)
1125     delete m_eventsLocker;
1126     m_eventsLocker = NULL;
1127 #endif
1128 }
1129
1130 #endif // wxUSE_THREADS
1131
1132 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1133 {
1134     // 1) Add event to list of pending events of this event handler
1135
1136     wxEvent *eventCopy = event.Clone();
1137
1138     // we must be able to copy the events here so the event class must
1139     // implement Clone() properly instead of just providing a NULL stab for it
1140     wxCHECK_RET( eventCopy,
1141                  _T("events of this type aren't supposed to be posted") );
1142
1143     wxENTER_CRIT_SECT( Lock() );
1144
1145     if ( !m_pendingEvents )
1146       m_pendingEvents = new wxList;
1147
1148     m_pendingEvents->Append(eventCopy);
1149
1150     wxLEAVE_CRIT_SECT( Lock() );
1151
1152     // 2) Add this event handler to list of event handlers that
1153     //    have pending events.
1154
1155     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1156
1157     if ( !wxPendingEvents )
1158         wxPendingEvents = new wxList;
1159     wxPendingEvents->Append(this);
1160
1161     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1162
1163     // 3) Inform the system that new pending events are somewhere,
1164     //    and that these should be processed in idle time.
1165     wxWakeUpIdle();
1166 }
1167
1168 void wxEvtHandler::ProcessPendingEvents()
1169 {
1170     // this method is only called by wxApp if this handler does have
1171     // pending events
1172     wxCHECK_RET( m_pendingEvents,
1173                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1174
1175     wxENTER_CRIT_SECT( Lock() );
1176
1177     // we leave the loop once we have processed all events that were present at
1178     // the start of ProcessPendingEvents because otherwise we could get into
1179     // infinite loop if the pending event handler execution resulted in another
1180     // event being posted
1181     size_t n = m_pendingEvents->size();
1182     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1183           node;
1184           node = m_pendingEvents->GetFirst() )
1185     {
1186         wxEvent *event = (wxEvent *)node->GetData();
1187
1188         // It's importan we remove event from list before processing it.
1189         // Else a nested event loop, for example from a modal dialog, might
1190         // process the same event again.
1191
1192         m_pendingEvents->Erase(node);
1193
1194         wxLEAVE_CRIT_SECT( Lock() );
1195
1196         ProcessEvent(*event);
1197
1198         delete event;
1199
1200         wxENTER_CRIT_SECT( Lock() );
1201
1202         if ( --n == 0 )
1203             break;
1204     }
1205
1206     wxLEAVE_CRIT_SECT( Lock() );
1207 }
1208
1209 /*
1210  * Event table stuff
1211  */
1212 /* static */ bool
1213 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1214                                     wxEvtHandler *handler,
1215                                     wxEvent& event)
1216 {
1217     int tableId1 = entry.m_id,
1218         tableId2 = entry.m_lastId;
1219
1220     // match only if the event type is the same and the id is either -1 in
1221     // the event table (meaning "any") or the event id matches the id
1222     // specified in the event table either exactly or by falling into
1223     // range between first and last
1224     if ((tableId1 == wxID_ANY) ||
1225         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1226         (tableId2 != wxID_ANY &&
1227          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1228     {
1229         event.Skip(false);
1230         event.m_callbackUserData = entry.m_callbackUserData;
1231
1232 #if wxUSE_EXCEPTIONS
1233         if ( wxTheApp )
1234         {
1235             // call the handler via wxApp method which allows the user to catch
1236             // any exceptions which may be thrown by any handler in the program
1237             // in one place
1238             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1239         }
1240         else
1241 #endif // wxUSE_EXCEPTIONS
1242         {
1243             // no need for an extra virtual function call
1244             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1245         }
1246
1247         if (!event.GetSkipped())
1248             return true;
1249     }
1250
1251     return false;
1252 }
1253
1254 bool wxEvtHandler::TryParent(wxEvent& event)
1255 {
1256     if ( wxTheApp && (this != wxTheApp) )
1257     {
1258         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1259         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1260         // processed appropriately via SearchEventTable.
1261         if ( event.GetEventType() != wxEVT_IDLE )
1262         {
1263             if ( wxTheApp->ProcessEvent(event) )
1264                 return true;
1265         }
1266     }
1267
1268     return false;
1269 }
1270
1271 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1272 {
1273     // allow the application to hook into event processing
1274     if ( wxTheApp )
1275     {
1276         int rc = wxTheApp->FilterEvent(event);
1277         if ( rc != -1 )
1278         {
1279             wxASSERT_MSG( rc == 1 || rc == 0,
1280                           _T("unexpected wxApp::FilterEvent return value") );
1281
1282             return rc != 0;
1283         }
1284         //else: proceed normally
1285     }
1286
1287     // An event handler can be enabled or disabled
1288     if ( GetEvtHandlerEnabled() )
1289     {
1290         // if we have a validator, it has higher priority than our own event
1291         // table
1292         if ( TryValidator(event) )
1293             return true;
1294
1295         // Handle per-instance dynamic event tables first
1296         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1297             return true;
1298
1299         // Then static per-class event tables
1300         if ( GetEventHashTable().HandleEvent(event, this) )
1301             return true;
1302     }
1303
1304     // Try going down the event handler chain
1305     if ( GetNextHandler() )
1306     {
1307         // notice that we shouldn't let the parent have the event even if the
1308         // next handler does not process it because it will have already passed
1309         // it to the parent in this case
1310         return GetNextHandler()->ProcessEvent(event);
1311     }
1312
1313     // Finally propagate the event upwards the window chain and/or to the
1314     // application object as necessary
1315     return TryParent(event);
1316 }
1317
1318 bool wxEvtHandler::SafelyProcessEvent(wxEvent& event)
1319 {
1320 #if wxUSE_EXCEPTIONS
1321     try
1322     {
1323 #endif
1324         return ProcessEvent(event);
1325 #if wxUSE_EXCEPTIONS
1326     }
1327     catch ( ... )
1328     {
1329         wxEventLoopBase *loop = wxEventLoopBase::GetActive();
1330         try
1331         {
1332             if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() )
1333             {
1334                 if ( loop )
1335                     loop->Exit();
1336             }
1337             //else: continue running current event loop
1338
1339             return false;
1340         }
1341         catch ( ... )
1342         {
1343             // OnExceptionInMainLoop() threw, possibly rethrowing the same
1344             // exception again: very good, but we still need Exit() to
1345             // be called
1346             if ( loop )
1347                 loop->Exit();
1348             throw;
1349         }
1350     }
1351 #endif // wxUSE_EXCEPTIONS
1352 }
1353
1354
1355 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1356 {
1357     const wxEventType eventType = event.GetEventType();
1358     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1359     {
1360         const wxEventTableEntry& entry = table.entries[i];
1361         if ( eventType == entry.m_eventType )
1362         {
1363             if ( ProcessEventIfMatches(entry, this, event) )
1364                 return true;
1365         }
1366     }
1367
1368     return false;
1369 }
1370
1371 void wxEvtHandler::Connect( int id, int lastId,
1372                             int eventType,
1373                             wxObjectEventFunction func,
1374                             wxObject *userData,
1375                             wxEvtHandler* eventSink )
1376 {
1377 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1378     wxEventTableEntry *entry = new wxEventTableEntry;
1379     entry->m_eventType = eventType;
1380     entry->m_id = id;
1381     entry->m_lastId = lastId;
1382     entry->m_fn = func;
1383     entry->m_callbackUserData = userData;
1384 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1385     wxDynamicEventTableEntry *entry =
1386         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1387 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1388
1389     if (!m_dynamicEvents)
1390         m_dynamicEvents = new wxList;
1391
1392     // Insert at the front of the list so most recent additions are found first
1393     m_dynamicEvents->Insert( (wxObject*) entry );
1394 }
1395
1396 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1397                   wxObjectEventFunction func,
1398                   wxObject *userData,
1399                   wxEvtHandler* eventSink )
1400 {
1401     if (!m_dynamicEvents)
1402         return false;
1403
1404     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1405     while (node)
1406     {
1407 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1408             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1409 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1410             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1411 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1412
1413         if ((entry->m_id == id) &&
1414             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1415             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1416             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1417             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1418             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1419         {
1420             if (entry->m_callbackUserData)
1421                 delete entry->m_callbackUserData;
1422             m_dynamicEvents->Erase( node );
1423             delete entry;
1424             return true;
1425         }
1426         node = node->GetNext();
1427     }
1428     return false;
1429 }
1430
1431 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1432 {
1433     wxCHECK_MSG( m_dynamicEvents, false,
1434                  wxT("caller should check that we have dynamic events") );
1435
1436     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1437     while (node)
1438     {
1439 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1440         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1441 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1442         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1443 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1444
1445         // get next node before (maybe) calling the event handler as it could
1446         // call Disconnect() invalidating the current node
1447         node = node->GetNext();
1448
1449         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1450         {
1451             wxEvtHandler *handler =
1452 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1453                                     entry->m_eventSink ? entry->m_eventSink
1454                                                        :
1455 #endif
1456                                                          this;
1457
1458             if ( ProcessEventIfMatches(*entry, handler, event) )
1459             {
1460                 return true;
1461             }
1462         }
1463     }
1464
1465     return false;
1466 }
1467
1468 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1469 {
1470     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1471                   wxT("can't have both object and void client data") );
1472
1473     if ( m_clientObject )
1474         delete m_clientObject;
1475
1476     m_clientObject = data;
1477     m_clientDataType = wxClientData_Object;
1478 }
1479
1480 wxClientData *wxEvtHandler::DoGetClientObject() const
1481 {
1482     // it's not an error to call GetClientObject() on a window which doesn't
1483     // have client data at all - NULL will be returned
1484     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1485                   wxT("this window doesn't have object client data") );
1486
1487     return m_clientObject;
1488 }
1489
1490 void wxEvtHandler::DoSetClientData( void *data )
1491 {
1492     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1493                   wxT("can't have both object and void client data") );
1494
1495     m_clientData = data;
1496     m_clientDataType = wxClientData_Void;
1497 }
1498
1499 void *wxEvtHandler::DoGetClientData() const
1500 {
1501     // it's not an error to call GetClientData() on a window which doesn't have
1502     // client data at all - NULL will be returned
1503     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1504                   wxT("this window doesn't have void client data") );
1505
1506     return m_clientData;
1507 }
1508
1509 #endif // wxUSE_BASE
1510
1511 #if wxUSE_GUI
1512
1513 // Find a window with the focus, that is also a descendant of the given window.
1514 // This is used to determine the window to initially send commands to.
1515 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1516 {
1517     // Process events starting with the window with the focus, if any.
1518     wxWindow* focusWin = wxWindow::FindFocus();
1519     wxWindow* win = focusWin;
1520
1521     // Check if this is a descendant of this frame.
1522     // If not, win will be set to NULL.
1523     while (win)
1524     {
1525         if (win == ancestor)
1526             break;
1527         else
1528             win = win->GetParent();
1529     }
1530     if (win == (wxWindow*) NULL)
1531         focusWin = (wxWindow*) NULL;
1532
1533     return focusWin;
1534 }
1535
1536 // ----------------------------------------------------------------------------
1537 // wxEventBlocker
1538 // ----------------------------------------------------------------------------
1539
1540 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1541 {
1542     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1543
1544     m_window = win;
1545
1546     Block(type);
1547     m_window->PushEventHandler(this);
1548 }
1549
1550 wxEventBlocker::~wxEventBlocker()
1551 {
1552     wxEvtHandler *popped = m_window->PopEventHandler(false);
1553     wxCHECK_RET(popped == this,
1554         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1555 }
1556
1557 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1558 {
1559     // should this event be blocked?
1560     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1561     {
1562         wxEventType t = (wxEventType)m_eventsToBlock[i];
1563         if ( t == wxEVT_ANY || t == event.GetEventType() )
1564             return true;   // yes, it should: mark this event as processed
1565     }
1566
1567     return false;
1568 }
1569
1570 #endif // wxUSE_GUI