src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/event.cpp
   3 // Purpose:     Event classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/event.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/list.h"
  31     #include "wx/app.h"
  32     #include "wx/utils.h"
  33     #include "wx/stopwatch.h"
  34     #include "wx/module.h"
  35
  36     #if wxUSE_GUI
  37         #include "wx/window.h"
  38         #include "wx/control.h"
  39         #include "wx/dc.h"
  40         #include "wx/textctrl.h"
  41         #include "wx/validate.h"
  42     #endif // wxUSE_GUI
  43 #endif
  44
  45 // ----------------------------------------------------------------------------
  46 // wxWin macros
  47 // ----------------------------------------------------------------------------
  48
  49 #if wxUSE_BASE
  50     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  51     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  52     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  53 #endif // wxUSE_BASE
  54
  55 #if wxUSE_GUI
  56     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  57     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  58     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  59     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  92 #endif // wxUSE_GUI
  93
  94 #if wxUSE_BASE
  95
  96 const wxEventTable *wxEvtHandler::GetEventTable() const
  97     { return &wxEvtHandler::sm_eventTable; }
  98
  99 const wxEventTable wxEvtHandler::sm_eventTable =
 100     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 101
 102 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 103     { return wxEvtHandler::sm_eventHashTable; }
 104
 105 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 106
 107 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 108     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 109
 110
 111 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 112 // leaked, so we need to manually clean up all event tables before checking for
 113 // the memory leaks when using it, however this breaks re-initializing the
 114 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 115 // event tables won't be rebuilt the next time, so disable this by default
 116 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 117
 118 class wxEventTableEntryModule: public wxModule
 119 {
 120 public:
 121     wxEventTableEntryModule() { }
 122     virtual bool OnInit() { return true; }
 123     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 124
 125     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 126 };
 127
 128 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 129
 130 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 131
 132 // ----------------------------------------------------------------------------
 133 // global variables
 134 // ----------------------------------------------------------------------------
 135
 136 // To put pending event handlers
 137 wxList *wxPendingEvents = (wxList *)NULL;
 138
 139 #if wxUSE_THREADS
 140     // protects wxPendingEvents list
 141     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 142 #endif
 143
 144 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 145
 146 // common event types are defined here, other event types are defined by the
 147 // components which use them
 148
 149 const wxEventType wxEVT_FIRST = 10000;
 150 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 151
 152 DEFINE_EVENT_TYPE(wxEVT_NULL)
 153 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 154 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 155 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 156
 157 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 158
 159 #endif // wxUSE_BASE
 160
 161 #if wxUSE_GUI
 162
 163 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 164
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
 182
 183 // Mouse event types
 184 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 185 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 186 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 187 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 188 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 189 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 190 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 191 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 192 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 193 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 194 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 195 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 196 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 197 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 198 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 199 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 200 DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
 201 DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
 202 DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
 203 DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
 204 DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
 205 DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
 206
 207 // Non-client mouse events
 208 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 209 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 210 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 211 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 213 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 220
 221 // Character input event type
 222 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 223 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 224 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 225 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 226 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 227 #if wxUSE_HOTKEY
 228 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 229 #endif
 230
 231 // Set cursor event
 232 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 233
 234 // wxScrollbar and wxSlider event identifiers
 235 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 237 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 244
 245 // Scroll events from wxWindow
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 247 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 248 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 249 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 254
 255 // System events
 256 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 257 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 258 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 259 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 260 DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
 261 DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
 262 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 263 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 264 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 265 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 266 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 267 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 268 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 269 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 270 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 271 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 272 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 273 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 274 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
 275 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 276 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 277 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 278 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 279 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 280 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 281 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 282 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 283 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 284 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 285 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 286 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 287 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 288 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 289 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 290 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 291 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 292 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 293 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 294 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 295 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 296 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 297 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 298
 299 // Clipboard events
 300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 303
 304 // Generic command events
 305 // Note: a click is a higher-level event than button down/up
 306 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 309 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 313
 314 // Help events
 315 DEFINE_EVENT_TYPE(wxEVT_HELP)
 316 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 317
 318 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 319
 320 #endif // wxUSE_GUI
 321
 322 #if wxUSE_BASE
 323
 324 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 325
 326 // ============================================================================
 327 // implementation
 328 // ============================================================================
 329
 330 // ----------------------------------------------------------------------------
 331 // event initialization
 332 // ----------------------------------------------------------------------------
 333
 334 int wxNewEventType()
 335 {
 336     // MT-FIXME
 337     static int s_lastUsedEventType = wxEVT_FIRST;
 338
 339     return s_lastUsedEventType++;
 340 }
 341
 342 // ----------------------------------------------------------------------------
 343 // wxEvent
 344 // ----------------------------------------------------------------------------
 345
 346 /*
 347  * General wxWidgets events, covering
 348  * all interesting things that might happen (button clicking, resizing,
 349  * setting text in widgets, etc.).
 350  *
 351  * For each completely new event type, derive a new event class.
 352  *
 353  */
 354
 355 wxEvent::wxEvent(int theId, wxEventType commandType )
 356 {
 357     m_eventType = commandType;
 358     m_eventObject = (wxObject *) NULL;
 359     m_timeStamp = 0;
 360     m_id = theId;
 361     m_skipped = false;
 362     m_callbackUserData = (wxObject *) NULL;
 363     m_isCommandEvent = false;
 364     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 365 }
 366
 367 wxEvent::wxEvent(const wxEvent &src)
 368     : wxObject(src)
 369     , m_eventObject(src.m_eventObject)
 370     , m_eventType(src.m_eventType)
 371     , m_timeStamp(src.m_timeStamp)
 372     , m_id(src.m_id)
 373     , m_callbackUserData(src.m_callbackUserData)
 374     , m_propagationLevel(src.m_propagationLevel)
 375     , m_skipped(src.m_skipped)
 376     , m_isCommandEvent(src.m_isCommandEvent)
 377 {
 378 }
 379
 380 #endif // wxUSE_BASE
 381
 382 #if wxUSE_GUI
 383
 384 /*
 385  * Command events
 386  *
 387  */
 388
 389 #ifdef __VISUALC__
 390     // 'this' : used in base member initializer list (for m_commandString)
 391     #pragma warning(disable:4355)
 392 #endif
 393
 394 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 395               : wxEvent(theId, commandType)
 396 {
 397     m_clientData = (char *) NULL;
 398     m_clientObject = (wxClientData *) NULL;
 399     m_extraLong = 0;
 400     m_commandInt = 0;
 401     m_isCommandEvent = true;
 402
 403     // the command events are propagated upwards by default
 404     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 405 }
 406
 407 #ifdef __VISUALC__
 408     #pragma warning(default:4355)
 409 #endif
 410
 411 wxString wxCommandEvent::GetString() const
 412 {
 413     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 414         return m_cmdString;
 415     else
 416     {
 417 #if wxUSE_TEXTCTRL
 418         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 419         if(txt)
 420             return txt->GetValue();
 421         else
 422 #endif // wxUSE_TEXTCTRL
 423             return m_cmdString;
 424     }
 425 }
 426
 427 /*
 428  * UI update events
 429  */
 430
 431 #if wxUSE_LONGLONG
 432 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 433 #endif
 434
 435 long wxUpdateUIEvent::sm_updateInterval = 0;
 436
 437 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 438
 439 // Can we update?
 440 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 441 {
 442     // Don't update if we've switched global updating off
 443     // and this window doesn't support updates.
 444     if (win &&
 445        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 446        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 447         return false;
 448
 449     if (sm_updateInterval == -1)
 450         return false;
 451
 452     if (sm_updateInterval == 0)
 453         return true;
 454
 455 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 456     wxLongLong now = wxGetLocalTimeMillis();
 457     if (now > (sm_lastUpdate + sm_updateInterval))
 458     {
 459         return true;
 460     }
 461
 462     return false;
 463 #else
 464     // If we don't have wxStopWatch or wxLongLong, we
 465     // should err on the safe side and update now anyway.
 466     return true;
 467 #endif
 468 }
 469
 470 // Reset the update time to provide a delay until the next
 471 // time we should update
 472 void wxUpdateUIEvent::ResetUpdateTime()
 473 {
 474 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 475     if (sm_updateInterval > 0)
 476     {
 477         wxLongLong now = wxGetLocalTimeMillis();
 478         if (now > (sm_lastUpdate + sm_updateInterval))
 479         {
 480             sm_lastUpdate = now;
 481         }
 482     }
 483 #endif
 484 }
 485
 486 /*
 487  * Scroll events
 488  */
 489
 490 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 491                              int id,
 492                              int pos,
 493                              int orient)
 494     : wxCommandEvent(commandType, id)
 495 {
 496     m_extraLong = orient;
 497     m_commandInt = pos;
 498 }
 499
 500 /*
 501  * ScrollWin events
 502  */
 503
 504 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 505                                    int pos,
 506                                    int orient)
 507 {
 508     m_eventType = commandType;
 509     m_extraLong = orient;
 510     m_commandInt = pos;
 511 }
 512
 513 /*
 514  * Mouse events
 515  *
 516  */
 517
 518 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 519 {
 520     m_eventType = commandType;
 521
 522     m_x = 0;
 523     m_y = 0;
 524
 525     m_leftDown = false;
 526     m_middleDown = false;
 527     m_rightDown = false;
 528     m_aux1Down = false;
 529     m_aux2Down = false;
 530
 531     m_controlDown = false;
 532     m_shiftDown = false;
 533     m_altDown = false;
 534     m_metaDown = false;
 535
 536     m_clickCount = -1;
 537
 538     m_wheelRotation = 0;
 539     m_wheelDelta = 0;
 540     m_linesPerAction = 0;
 541     m_wheelAxis = 0;
 542 }
 543
 544 void wxMouseEvent::Assign(const wxMouseEvent& event)
 545 {
 546     m_eventType = event.m_eventType;
 547
 548     m_x = event.m_x;
 549     m_y = event.m_y;
 550
 551     m_leftDown = event.m_leftDown;
 552     m_middleDown = event.m_middleDown;
 553     m_rightDown = event.m_rightDown;
 554     m_aux1Down = event.m_aux1Down;
 555     m_aux2Down = event.m_aux2Down;
 556
 557     m_controlDown = event.m_controlDown;
 558     m_shiftDown = event.m_shiftDown;
 559     m_altDown = event.m_altDown;
 560     m_metaDown = event.m_metaDown;
 561
 562     m_wheelRotation = event.m_wheelRotation;
 563     m_wheelDelta = event.m_wheelDelta;
 564     m_linesPerAction = event.m_linesPerAction;
 565     m_wheelAxis = event.m_wheelAxis;
 566 }
 567
 568 // return true if was a button dclick event
 569 bool wxMouseEvent::ButtonDClick(int but) const
 570 {
 571     switch (but)
 572     {
 573         default:
 574             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 575             // fall through
 576
 577         case wxMOUSE_BTN_ANY:
 578             return (LeftDClick() || MiddleDClick() || RightDClick() ||
 579                     Aux1DClick() || Aux2DClick());
 580
 581         case wxMOUSE_BTN_LEFT:
 582             return LeftDClick();
 583
 584         case wxMOUSE_BTN_MIDDLE:
 585             return MiddleDClick();
 586
 587         case wxMOUSE_BTN_RIGHT:
 588             return RightDClick();
 589
 590         case wxMOUSE_BTN_AUX1:
 591             return Aux1DClick();
 592
 593         case wxMOUSE_BTN_AUX2:
 594             return Aux2DClick();
 595     }
 596 }
 597
 598 // return true if was a button down event
 599 bool wxMouseEvent::ButtonDown(int but) const
 600 {
 601     switch (but)
 602     {
 603         default:
 604             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 605             // fall through
 606
 607         case wxMOUSE_BTN_ANY:
 608             return (LeftDown() || MiddleDown() || RightDown() ||
 609                     Aux1Down() || Aux2Down());
 610
 611         case wxMOUSE_BTN_LEFT:
 612             return LeftDown();
 613
 614         case wxMOUSE_BTN_MIDDLE:
 615             return MiddleDown();
 616
 617         case wxMOUSE_BTN_RIGHT:
 618             return RightDown();
 619
 620         case wxMOUSE_BTN_AUX1:
 621             return Aux1Down();
 622
 623         case wxMOUSE_BTN_AUX2:
 624             return Aux2Down();
 625     }
 626 }
 627
 628 // return true if was a button up event
 629 bool wxMouseEvent::ButtonUp(int but) const
 630 {
 631     switch (but)
 632     {
 633         default:
 634             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 635             // fall through
 636
 637         case wxMOUSE_BTN_ANY:
 638             return (LeftUp() || MiddleUp() || RightUp() ||
 639                     Aux1Up() || Aux2Up());
 640
 641         case wxMOUSE_BTN_LEFT:
 642             return LeftUp();
 643
 644         case wxMOUSE_BTN_MIDDLE:
 645             return MiddleUp();
 646
 647         case wxMOUSE_BTN_RIGHT:
 648             return RightUp();
 649
 650         case wxMOUSE_BTN_AUX1:
 651             return Aux1Up();
 652
 653         case wxMOUSE_BTN_AUX2:
 654             return Aux2Up();
 655     }
 656 }
 657
 658 // return true if the given button is currently changing state
 659 bool wxMouseEvent::Button(int but) const
 660 {
 661     switch (but)
 662     {
 663         default:
 664             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 665             // fall through
 666
 667         case wxMOUSE_BTN_ANY:
 668             return ButtonUp(wxMOUSE_BTN_ANY) ||
 669                     ButtonDown(wxMOUSE_BTN_ANY) ||
 670                         ButtonDClick(wxMOUSE_BTN_ANY);
 671
 672         case wxMOUSE_BTN_LEFT:
 673             return LeftDown() || LeftUp() || LeftDClick();
 674
 675         case wxMOUSE_BTN_MIDDLE:
 676             return MiddleDown() || MiddleUp() || MiddleDClick();
 677
 678         case wxMOUSE_BTN_RIGHT:
 679             return RightDown() || RightUp() || RightDClick();
 680
 681         case wxMOUSE_BTN_AUX1:
 682            return Aux1Down() || Aux1Up() || Aux1DClick();
 683
 684         case wxMOUSE_BTN_AUX2:
 685            return Aux2Down() || Aux2Up() || Aux2DClick();
 686     }
 687 }
 688
 689 bool wxMouseEvent::ButtonIsDown(int but) const
 690 {
 691     switch (but)
 692     {
 693         default:
 694             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 695             // fall through
 696
 697         case wxMOUSE_BTN_ANY:
 698             return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
 699
 700         case wxMOUSE_BTN_LEFT:
 701             return LeftIsDown();
 702
 703         case wxMOUSE_BTN_MIDDLE:
 704             return MiddleIsDown();
 705
 706         case wxMOUSE_BTN_RIGHT:
 707             return RightIsDown();
 708
 709         case wxMOUSE_BTN_AUX1:
 710             return Aux1IsDown();
 711
 712         case wxMOUSE_BTN_AUX2:
 713             return Aux2IsDown();
 714     }
 715 }
 716
 717 int wxMouseEvent::GetButton() const
 718 {
 719     for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
 720     {
 721         if ( Button(i) )
 722         {
 723             return i;
 724         }
 725     }
 726
 727     return wxMOUSE_BTN_NONE;
 728 }
 729
 730 // Find the logical position of the event given the DC
 731 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 732 {
 733     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 734     return pt;
 735 }
 736
 737
 738 /*
 739  * Keyboard event
 740  *
 741  */
 742
 743 wxKeyEvent::wxKeyEvent(wxEventType type)
 744 {
 745     m_eventType = type;
 746     m_shiftDown = false;
 747     m_controlDown = false;
 748     m_metaDown = false;
 749     m_altDown = false;
 750     m_keyCode = 0;
 751     m_scanCode = 0;
 752 #if wxUSE_UNICODE
 753     m_uniChar = 0;
 754 #endif
 755 }
 756
 757 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 758     : wxEvent(evt)
 759 {
 760     m_x = evt.m_x;
 761     m_y = evt.m_y;
 762
 763     m_keyCode = evt.m_keyCode;
 764
 765     m_controlDown = evt.m_controlDown;
 766     m_shiftDown = evt.m_shiftDown;
 767     m_altDown = evt.m_altDown;
 768     m_metaDown = evt.m_metaDown;
 769     m_scanCode = evt.m_scanCode;
 770     m_rawCode = evt.m_rawCode;
 771     m_rawFlags = evt.m_rawFlags;
 772
 773 #if wxUSE_UNICODE
 774     m_uniChar = evt.m_uniChar;
 775 #endif
 776 }
 777
 778 #if WXWIN_COMPATIBILITY_2_6
 779 long wxKeyEvent::KeyCode() const
 780 {
 781     return m_keyCode;
 782 }
 783 #endif // WXWIN_COMPATIBILITY_2_6
 784
 785 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 786 {
 787     SetEventType(wxEVT_CREATE);
 788     SetEventObject(win);
 789 }
 790
 791 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 792 {
 793     SetEventType(wxEVT_DESTROY);
 794     SetEventObject(win);
 795 }
 796
 797 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 798                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 799 {
 800     SetEventObject(win);
 801 }
 802
 803 // ----------------------------------------------------------------------------
 804 // wxHelpEvent
 805 // ----------------------------------------------------------------------------
 806
 807 /* static */
 808 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 809 {
 810     if ( origin == Origin_Unknown )
 811     {
 812         // assume that the event comes from the help button if it's not from
 813         // keyboard and that pressing F1 always results in the help event
 814         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 815     }
 816
 817     return origin;
 818 }
 819
 820 #endif // wxUSE_GUI
 821
 822
 823 #if wxUSE_BASE
 824
 825 // ----------------------------------------------------------------------------
 826 // wxEventHashTable
 827 // ----------------------------------------------------------------------------
 828
 829 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 830
 831 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 832
 833 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 834                 : m_table(table),
 835                   m_rebuildHash(true)
 836 {
 837     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 838
 839     m_next = sm_first;
 840     if (m_next)
 841         m_next->m_previous = this;
 842     sm_first = this;
 843 }
 844
 845 wxEventHashTable::~wxEventHashTable()
 846 {
 847     if (m_next)
 848         m_next->m_previous = m_previous;
 849     if (m_previous)
 850         m_previous->m_next = m_next;
 851     if (sm_first == this)
 852         sm_first = m_next;
 853
 854     Clear();
 855 }
 856
 857 void wxEventHashTable::Clear()
 858 {
 859     for ( size_t i = 0; i < m_size; i++ )
 860     {
 861         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 862         delete eTTnode;
 863     }
 864
 865     delete[] m_eventTypeTable;
 866     m_eventTypeTable = NULL;
 867
 868     m_size = 0;
 869 }
 870
 871 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 872
 873 // Clear all tables
 874 void wxEventHashTable::ClearAll()
 875 {
 876     wxEventHashTable* table = sm_first;
 877     while (table)
 878     {
 879         table->Clear();
 880         table = table->m_next;
 881     }
 882 }
 883
 884 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 885
 886 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 887 {
 888     if (m_rebuildHash)
 889     {
 890         InitHashTable();
 891         m_rebuildHash = false;
 892     }
 893
 894     if (!m_eventTypeTable)
 895         return false;
 896
 897     // Find all entries for the given event type.
 898     wxEventType eventType = event.GetEventType();
 899     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 900     if (eTTnode && eTTnode->eventType == eventType)
 901     {
 902         // Now start the search for an event handler
 903         // that can handle an event with the given ID.
 904         const wxEventTableEntryPointerArray&
 905             eventEntryTable = eTTnode->eventEntryTable;
 906
 907         const size_t count = eventEntryTable.GetCount();
 908         for (size_t n = 0; n < count; n++)
 909         {
 910             if ( wxEvtHandler::
 911                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 912             {
 913                 return true;
 914             }
 915         }
 916     }
 917
 918     return false;
 919 }
 920
 921 void wxEventHashTable::InitHashTable()
 922 {
 923     // Loop over the event tables and all its base tables.
 924     const wxEventTable *table = &m_table;
 925     while (table)
 926     {
 927         // Retrieve all valid event handler entries
 928         const wxEventTableEntry *entry = table->entries;
 929         while (entry->m_fn != 0)
 930         {
 931             // Add the event entry in the Hash.
 932             AddEntry(*entry);
 933
 934             entry++;
 935         }
 936
 937         table = table->baseTable;
 938     }
 939
 940     // Lets free some memory.
 941     size_t i;
 942     for(i = 0; i < m_size; i++)
 943     {
 944         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 945         if (eTTnode)
 946         {
 947             eTTnode->eventEntryTable.Shrink();
 948         }
 949     }
 950 }
 951
 952 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 953 {
 954     // This might happen 'accidentally' as the app is exiting
 955     if (!m_eventTypeTable)
 956         return;
 957
 958     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 959     EventTypeTablePointer  eTTnode = *peTTnode;
 960
 961     if (eTTnode)
 962     {
 963         if (eTTnode->eventType != entry.m_eventType)
 964         {
 965             // Resize the table!
 966             GrowEventTypeTable();
 967             // Try again to add it.
 968             AddEntry(entry);
 969             return;
 970         }
 971     }
 972     else
 973     {
 974         eTTnode = new EventTypeTable;
 975         eTTnode->eventType = entry.m_eventType;
 976         *peTTnode = eTTnode;
 977     }
 978
 979     // Fill all hash entries between entry.m_id and entry.m_lastId...
 980     eTTnode->eventEntryTable.Add(&entry);
 981 }
 982
 983 void wxEventHashTable::AllocEventTypeTable(size_t size)
 984 {
 985     m_eventTypeTable = new EventTypeTablePointer[size];
 986     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 987     m_size = size;
 988 }
 989
 990 void wxEventHashTable::GrowEventTypeTable()
 991 {
 992     size_t oldSize = m_size;
 993     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 994
 995     // TODO: Search the most optimal grow sequence
 996     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 997
 998     for ( size_t i = 0; i < oldSize; /* */ )
 999     {
1000         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
1001         if (eTToldNode)
1002         {
1003             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
1004             EventTypeTablePointer  eTTnode = *peTTnode;
1005
1006             // Check for collision, we don't want any.
1007             if (eTTnode)
1008             {
1009                 GrowEventTypeTable();
1010                 continue; // Don't increment the counter,
1011                           // as we still need to add this element.
1012             }
1013             else
1014             {
1015                 // Get the old value and put it in the new table.
1016                 *peTTnode = oldEventTypeTable[i];
1017             }
1018         }
1019
1020         i++;
1021     }
1022
1023     delete[] oldEventTypeTable;
1024 }
1025
1026
1027 // ----------------------------------------------------------------------------
1028 // wxEvtHandler
1029 // ----------------------------------------------------------------------------
1030
1031 /*
1032  * Event handler
1033  */
1034
1035 wxEvtHandler::wxEvtHandler()
1036 {
1037     m_nextHandler = (wxEvtHandler *) NULL;
1038     m_previousHandler = (wxEvtHandler *) NULL;
1039     m_enabled = true;
1040     m_dynamicEvents = (wxList *) NULL;
1041     m_pendingEvents = (wxList *) NULL;
1042 #if wxUSE_THREADS
1043 #  if !defined(__VISAGECPP__)
1044     m_eventsLocker = new wxCriticalSection;
1045 #  endif
1046 #endif
1047
1048     // no client data (yet)
1049     m_clientData = NULL;
1050     m_clientDataType = wxClientData_None;
1051 }
1052
1053 wxEvtHandler::~wxEvtHandler()
1054 {
1055     // Takes itself out of the list of handlers
1056     if (m_previousHandler)
1057         m_previousHandler->m_nextHandler = m_nextHandler;
1058
1059     if (m_nextHandler)
1060         m_nextHandler->m_previousHandler = m_previousHandler;
1061
1062     if (m_dynamicEvents)
1063     {
1064         for ( wxList::iterator it = m_dynamicEvents->begin(),
1065                                end = m_dynamicEvents->end();
1066               it != end;
1067               ++it )
1068         {
1069 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1070             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1071 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1072             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1073 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1074
1075             if (entry->m_callbackUserData)
1076                 delete entry->m_callbackUserData;
1077             delete entry;
1078         }
1079         delete m_dynamicEvents;
1080     };
1081
1082     if (m_pendingEvents)
1083         m_pendingEvents->DeleteContents(true);
1084     delete m_pendingEvents;
1085
1086 #if wxUSE_THREADS
1087 #  if !defined(__VISAGECPP__)
1088     delete m_eventsLocker;
1089 #  endif
1090
1091     // Remove us from wxPendingEvents if necessary.
1092     if(wxPendingEventsLocker)
1093         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1094     if ( wxPendingEvents )
1095     {
1096         // Delete all occurences of this from the list of pending events
1097         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1098     }
1099     if(wxPendingEventsLocker)
1100         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1101 #endif
1102
1103     // we only delete object data, not untyped
1104     if ( m_clientDataType == wxClientData_Object )
1105         delete m_clientObject;
1106 }
1107
1108 #if wxUSE_THREADS
1109
1110 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1111 {
1112     // check that we are really in a child thread
1113     wxASSERT_MSG( !wxThread::IsMain(),
1114                   wxT("use ProcessEvent() in main thread") );
1115
1116     AddPendingEvent(event);
1117
1118     return true;
1119 }
1120
1121 void wxEvtHandler::ClearEventLocker()
1122 {
1123 #if !defined(__VISAGECPP__)
1124     delete m_eventsLocker;
1125     m_eventsLocker = NULL;
1126 #endif
1127 }
1128
1129 #endif // wxUSE_THREADS
1130
1131 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1132 {
1133     // 1) Add event to list of pending events of this event handler
1134
1135     wxEvent *eventCopy = event.Clone();
1136
1137     // we must be able to copy the events here so the event class must
1138     // implement Clone() properly instead of just providing a NULL stab for it
1139     wxCHECK_RET( eventCopy,
1140                  _T("events of this type aren't supposed to be posted") );
1141
1142     wxENTER_CRIT_SECT( Lock() );
1143
1144     if ( !m_pendingEvents )
1145       m_pendingEvents = new wxList;
1146
1147     m_pendingEvents->Append(eventCopy);
1148
1149     wxLEAVE_CRIT_SECT( Lock() );
1150
1151     // 2) Add this event handler to list of event handlers that
1152     //    have pending events.
1153
1154     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1155
1156     if ( !wxPendingEvents )
1157         wxPendingEvents = new wxList;
1158     wxPendingEvents->Append(this);
1159
1160     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1161
1162     // 3) Inform the system that new pending events are somewhere,
1163     //    and that these should be processed in idle time.
1164     wxWakeUpIdle();
1165 }
1166
1167 void wxEvtHandler::ProcessPendingEvents()
1168 {
1169     // this method is only called by wxApp if this handler does have
1170     // pending events
1171     wxCHECK_RET( m_pendingEvents,
1172                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1173
1174     wxENTER_CRIT_SECT( Lock() );
1175
1176     // we leave the loop once we have processed all events that were present at
1177     // the start of ProcessPendingEvents because otherwise we could get into
1178     // infinite loop if the pending event handler execution resulted in another
1179     // event being posted
1180     size_t n = m_pendingEvents->size();
1181     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1182           node;
1183           node = m_pendingEvents->GetFirst() )
1184     {
1185         wxEvent *event = (wxEvent *)node->GetData();
1186
1187         // It's importan we remove event from list before processing it.
1188         // Else a nested event loop, for example from a modal dialog, might
1189         // process the same event again.
1190
1191         m_pendingEvents->Erase(node);
1192
1193         wxLEAVE_CRIT_SECT( Lock() );
1194
1195         ProcessEvent(*event);
1196
1197         delete event;
1198
1199         wxENTER_CRIT_SECT( Lock() );
1200
1201         if ( --n == 0 )
1202             break;
1203     }
1204
1205     wxLEAVE_CRIT_SECT( Lock() );
1206 }
1207
1208 /*
1209  * Event table stuff
1210  */
1211 /* static */ bool
1212 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1213                                     wxEvtHandler *handler,
1214                                     wxEvent& event)
1215 {
1216     int tableId1 = entry.m_id,
1217         tableId2 = entry.m_lastId;
1218
1219     // match only if the event type is the same and the id is either -1 in
1220     // the event table (meaning "any") or the event id matches the id
1221     // specified in the event table either exactly or by falling into
1222     // range between first and last
1223     if ((tableId1 == wxID_ANY) ||
1224         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1225         (tableId2 != wxID_ANY &&
1226          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1227     {
1228         event.Skip(false);
1229         event.m_callbackUserData = entry.m_callbackUserData;
1230
1231 #if wxUSE_EXCEPTIONS
1232         if ( wxTheApp )
1233         {
1234             // call the handler via wxApp method which allows the user to catch
1235             // any exceptions which may be thrown by any handler in the program
1236             // in one place
1237             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1238         }
1239         else
1240 #endif // wxUSE_EXCEPTIONS
1241         {
1242             // no need for an extra virtual function call
1243             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1244         }
1245
1246         if (!event.GetSkipped())
1247             return true;
1248     }
1249
1250     return false;
1251 }
1252
1253 bool wxEvtHandler::TryParent(wxEvent& event)
1254 {
1255     if ( wxTheApp && (this != wxTheApp) )
1256     {
1257         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1258         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1259         // processed appropriately via SearchEventTable.
1260         if ( event.GetEventType() != wxEVT_IDLE )
1261         {
1262             if ( wxTheApp->ProcessEvent(event) )
1263                 return true;
1264         }
1265     }
1266
1267     return false;
1268 }
1269
1270 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1271 {
1272     // allow the application to hook into event processing
1273     if ( wxTheApp )
1274     {
1275         int rc = wxTheApp->FilterEvent(event);
1276         if ( rc != -1 )
1277         {
1278             wxASSERT_MSG( rc == 1 || rc == 0,
1279                           _T("unexpected wxApp::FilterEvent return value") );
1280
1281             return rc != 0;
1282         }
1283         //else: proceed normally
1284     }
1285
1286     // An event handler can be enabled or disabled
1287     if ( GetEvtHandlerEnabled() )
1288     {
1289         // if we have a validator, it has higher priority than our own event
1290         // table
1291         if ( TryValidator(event) )
1292             return true;
1293
1294         // Handle per-instance dynamic event tables first
1295         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1296             return true;
1297
1298         // Then static per-class event tables
1299         if ( GetEventHashTable().HandleEvent(event, this) )
1300             return true;
1301     }
1302
1303     // Try going down the event handler chain
1304     if ( GetNextHandler() )
1305     {
1306         // notice that we shouldn't let the parent have the event even if the
1307         // next handler does not process it because it will have already passed
1308         // it to the parent in this case
1309         return GetNextHandler()->ProcessEvent(event);
1310     }
1311
1312     // Finally propagate the event upwards the window chain and/or to the
1313     // application object as necessary
1314     return TryParent(event);
1315 }
1316
1317
1318 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1319 {
1320     const wxEventType eventType = event.GetEventType();
1321     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1322     {
1323         const wxEventTableEntry& entry = table.entries[i];
1324         if ( eventType == entry.m_eventType )
1325         {
1326             if ( ProcessEventIfMatches(entry, this, event) )
1327                 return true;
1328         }
1329     }
1330
1331     return false;
1332 }
1333
1334 void wxEvtHandler::Connect( int id, int lastId,
1335                             int eventType,
1336                             wxObjectEventFunction func,
1337                             wxObject *userData,
1338                             wxEvtHandler* eventSink )
1339 {
1340 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1341     wxEventTableEntry *entry = new wxEventTableEntry;
1342     entry->m_eventType = eventType;
1343     entry->m_id = id;
1344     entry->m_lastId = lastId;
1345     entry->m_fn = func;
1346     entry->m_callbackUserData = userData;
1347 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1348     wxDynamicEventTableEntry *entry =
1349         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1350 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1351
1352     if (!m_dynamicEvents)
1353         m_dynamicEvents = new wxList;
1354
1355     // Insert at the front of the list so most recent additions are found first
1356     m_dynamicEvents->Insert( (wxObject*) entry );
1357 }
1358
1359 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1360                   wxObjectEventFunction func,
1361                   wxObject *userData,
1362                   wxEvtHandler* eventSink )
1363 {
1364     if (!m_dynamicEvents)
1365         return false;
1366
1367     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1368     while (node)
1369     {
1370 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1371             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1372 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1373             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1374 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1375
1376         if ((entry->m_id == id) &&
1377             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1378             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1379             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1380             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1381             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1382         {
1383             if (entry->m_callbackUserData)
1384                 delete entry->m_callbackUserData;
1385             m_dynamicEvents->Erase( node );
1386             delete entry;
1387             return true;
1388         }
1389         node = node->GetNext();
1390     }
1391     return false;
1392 }
1393
1394 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1395 {
1396     wxCHECK_MSG( m_dynamicEvents, false,
1397                  wxT("caller should check that we have dynamic events") );
1398
1399     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1400     while (node)
1401     {
1402 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1403         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1404 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1405         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1406 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1407
1408         // get next node before (maybe) calling the event handler as it could
1409         // call Disconnect() invalidating the current node
1410         node = node->GetNext();
1411
1412         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1413         {
1414             wxEvtHandler *handler =
1415 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1416                                     entry->m_eventSink ? entry->m_eventSink
1417                                                        :
1418 #endif
1419                                                          this;
1420
1421             if ( ProcessEventIfMatches(*entry, handler, event) )
1422             {
1423                 return true;
1424             }
1425         }
1426     }
1427
1428     return false;
1429 }
1430
1431 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1432 {
1433     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1434                   wxT("can't have both object and void client data") );
1435
1436     if ( m_clientObject )
1437         delete m_clientObject;
1438
1439     m_clientObject = data;
1440     m_clientDataType = wxClientData_Object;
1441 }
1442
1443 wxClientData *wxEvtHandler::DoGetClientObject() const
1444 {
1445     // it's not an error to call GetClientObject() on a window which doesn't
1446     // have client data at all - NULL will be returned
1447     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1448                   wxT("this window doesn't have object client data") );
1449
1450     return m_clientObject;
1451 }
1452
1453 void wxEvtHandler::DoSetClientData( void *data )
1454 {
1455     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1456                   wxT("can't have both object and void client data") );
1457
1458     m_clientData = data;
1459     m_clientDataType = wxClientData_Void;
1460 }
1461
1462 void *wxEvtHandler::DoGetClientData() const
1463 {
1464     // it's not an error to call GetClientData() on a window which doesn't have
1465     // client data at all - NULL will be returned
1466     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1467                   wxT("this window doesn't have void client data") );
1468
1469     return m_clientData;
1470 }
1471
1472 #endif // wxUSE_BASE
1473
1474 #if wxUSE_GUI
1475
1476 // Find a window with the focus, that is also a descendant of the given window.
1477 // This is used to determine the window to initially send commands to.
1478 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1479 {
1480     // Process events starting with the window with the focus, if any.
1481     wxWindow* focusWin = wxWindow::FindFocus();
1482     wxWindow* win = focusWin;
1483
1484     // Check if this is a descendant of this frame.
1485     // If not, win will be set to NULL.
1486     while (win)
1487     {
1488         if (win == ancestor)
1489             break;
1490         else
1491             win = win->GetParent();
1492     }
1493     if (win == (wxWindow*) NULL)
1494         focusWin = (wxWindow*) NULL;
1495
1496     return focusWin;
1497 }
1498
1499 // ----------------------------------------------------------------------------
1500 // wxEventBlocker
1501 // ----------------------------------------------------------------------------
1502
1503 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1504 {
1505     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1506
1507     m_window = win;
1508
1509     Block(type);
1510     m_window->PushEventHandler(this);
1511 }
1512
1513 wxEventBlocker::~wxEventBlocker()
1514 {
1515     wxEvtHandler *popped = m_window->PopEventHandler(false);
1516     wxCHECK_RET(popped == this,
1517         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1518 }
1519
1520 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1521 {
1522     // should this event be blocked?
1523     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1524     {
1525         wxEventType t = (wxEventType)m_eventsToBlock[i];
1526         if ( t == wxEVT_ANY || t == event.GetEventType() )
1527             return true;   // yes, it should: mark this event as processed
1528     }
1529
1530     return false;
1531 }
1532
1533 #endif // wxUSE_GUI