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
  35     #if wxUSE_GUI
  36         #include "wx/control.h"
  37         #include "wx/dc.h"
  38         #include "wx/textctrl.h"
  39         #include "wx/validate.h"
  40     #endif // wxUSE_GUI
  41 #endif
  42
  43 #include "wx/module.h"
  44
  45 // ----------------------------------------------------------------------------
  46 // wxWin macros
  47 // ----------------------------------------------------------------------------
  48
  49 #if wxUSE_BASE
  50     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  51     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  52 #endif // wxUSE_BASE
  53
  54 #if wxUSE_GUI
  55     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  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(wxClipboardTextEvent, wxCommandEvent)
  91 #endif // wxUSE_GUI
  92
  93 #if wxUSE_BASE
  94
  95 const wxEventTable *wxEvtHandler::GetEventTable() const
  96     { return &wxEvtHandler::sm_eventTable; }
  97
  98 const wxEventTable wxEvtHandler::sm_eventTable =
  99     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 100
 101 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 102     { return wxEvtHandler::sm_eventHashTable; }
 103
 104 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 105
 106 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 107     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 108
 109
 110 #ifdef __WXDEBUG__
 111 // Clear up event hash table contents or we can get problems
 112 // when C++ is cleaning up the static object
 113 class wxEventTableEntryModule: public wxModule
 114 {
 115 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 116 public:
 117     wxEventTableEntryModule() {}
 118     bool OnInit() { return true; }
 119     void OnExit()
 120     {
 121         wxEventHashTable::ClearAll();
 122     }
 123 };
 124 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 125 #endif
 126
 127 // ----------------------------------------------------------------------------
 128 // global variables
 129 // ----------------------------------------------------------------------------
 130
 131 // To put pending event handlers
 132 wxList *wxPendingEvents = (wxList *)NULL;
 133
 134 #if wxUSE_THREADS
 135     // protects wxPendingEvents list
 136     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 137 #endif
 138
 139 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 140
 141 // common event types are defined here, other event types are defined by the
 142 // components which use them
 143
 144 const wxEventType wxEVT_FIRST = 10000;
 145 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 146
 147 DEFINE_EVENT_TYPE(wxEVT_NULL)
 148 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 149 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 150
 151 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 152
 153 #endif // wxUSE_BASE
 154
 155 #if wxUSE_GUI
 156
 157 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 158
 159 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 160 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 161 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 162 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 163 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 175
 176 // Sockets and timers send events, too
 177 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 178
 179 // Mouse event types
 180 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 181 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 182 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 183 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 184 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 185 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 186 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 187 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 188 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 189 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 190 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 191 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 192 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 193 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 194 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 195 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 196
 197 // Non-client mouse events
 198 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 199 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 200 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 201 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 202 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 203 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 204 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 205 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 206 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 207 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 208 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 209 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 210
 211 // Character input event type
 212 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 213 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 214 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 215 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 216 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 217 #if wxUSE_HOTKEY
 218 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 219 #endif
 220
 221 // Set cursor event
 222 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 223
 224 // wxScrollbar and wxSlider event identifiers
 225 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 226 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 227 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 228 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 229 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 230 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 231 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 232 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 233 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 234
 235 // Scroll events from wxWindow
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 237 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 244
 245 // System events
 246 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 247 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 248 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 249 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 250 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 251 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 252 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 253 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 254 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 255 DEFINE_EVENT_TYPE(wxEVT_POWER)
 256 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 257 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 258 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 259 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 260 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 261 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 262 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 263 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 264 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 265 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 266 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 267 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 268 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 269 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 270 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 271 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 272 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 273 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 274 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 275 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 276 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 277 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 278 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 279 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 280 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 281 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 282 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 283 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 284 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 285 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 286
 287 // Clipboard events
 288 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 289 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 290 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 291
 292 // Generic command events
 293 // Note: a click is a higher-level event than button down/up
 294 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 295 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 296 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 297 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 298 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 299 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 301
 302 // Help events
 303 DEFINE_EVENT_TYPE(wxEVT_HELP)
 304 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 305
 306 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 307
 308 #endif // wxUSE_GUI
 309
 310 #if wxUSE_BASE
 311
 312 // ============================================================================
 313 // implementation
 314 // ============================================================================
 315
 316 // ----------------------------------------------------------------------------
 317 // event initialization
 318 // ----------------------------------------------------------------------------
 319
 320 int wxNewEventType()
 321 {
 322     // MT-FIXME
 323     static int s_lastUsedEventType = wxEVT_FIRST;
 324
 325     return s_lastUsedEventType++;
 326 }
 327
 328 // ----------------------------------------------------------------------------
 329 // wxEvent
 330 // ----------------------------------------------------------------------------
 331
 332 /*
 333  * General wxWidgets events, covering
 334  * all interesting things that might happen (button clicking, resizing,
 335  * setting text in widgets, etc.).
 336  *
 337  * For each completely new event type, derive a new event class.
 338  *
 339  */
 340
 341 wxEvent::wxEvent(int theId, wxEventType commandType )
 342 {
 343     m_eventType = commandType;
 344     m_eventObject = (wxObject *) NULL;
 345     m_timeStamp = 0;
 346     m_id = theId;
 347     m_skipped = false;
 348     m_callbackUserData = (wxObject *) NULL;
 349     m_isCommandEvent = false;
 350     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 351 }
 352
 353 wxEvent::wxEvent(const wxEvent &src)
 354     : wxObject()
 355     , m_eventObject(src.m_eventObject)
 356     , m_eventType(src.m_eventType)
 357     , m_timeStamp(src.m_timeStamp)
 358     , m_id(src.m_id)
 359     , m_callbackUserData(src.m_callbackUserData)
 360     , m_propagationLevel(src.m_propagationLevel)
 361     , m_skipped(src.m_skipped)
 362     , m_isCommandEvent(src.m_isCommandEvent)
 363 {
 364 }
 365
 366 #endif // wxUSE_BASE
 367
 368 #if wxUSE_GUI
 369
 370 /*
 371  * Command events
 372  *
 373  */
 374
 375 #ifdef __VISUALC__
 376     // 'this' : used in base member initializer list (for m_commandString)
 377     #pragma warning(disable:4355)
 378 #endif
 379
 380 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 381               : wxEvent(theId, commandType)
 382 #if WXWIN_COMPATIBILITY_2_4
 383               , m_commandString(this)
 384 #endif
 385 {
 386     m_clientData = (char *) NULL;
 387     m_clientObject = (wxClientData *) NULL;
 388     m_extraLong = 0;
 389     m_commandInt = 0;
 390     m_isCommandEvent = true;
 391
 392     // the command events are propagated upwards by default
 393     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 394 }
 395
 396 #ifdef __VISUALC__
 397     #pragma warning(default:4355)
 398 #endif
 399
 400 wxString wxCommandEvent::GetString() const
 401 {
 402     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 403         return m_cmdString;
 404     else
 405     {
 406 #if wxUSE_TEXTCTRL
 407         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 408         if(txt)
 409             return txt->GetValue();
 410         else
 411 #endif // wxUSE_TEXTCTRL
 412             return m_cmdString;
 413     }
 414 }
 415
 416 /*
 417  * UI update events
 418  */
 419
 420 #if wxUSE_LONGLONG
 421 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 422 #endif
 423
 424 long wxUpdateUIEvent::sm_updateInterval = 0;
 425
 426 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 427
 428 // Can we update?
 429 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 430 {
 431     // Don't update if we've switched global updating off
 432     // and this window doesn't support updates.
 433     if (win &&
 434        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 435        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 436         return false;
 437
 438     if (sm_updateInterval == -1)
 439         return false;
 440
 441     if (sm_updateInterval == 0)
 442         return true;
 443
 444 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 445     wxLongLong now = wxGetLocalTimeMillis();
 446     if (now > (sm_lastUpdate + sm_updateInterval))
 447     {
 448         return true;
 449     }
 450
 451     return false;
 452 #else
 453     // If we don't have wxStopWatch or wxLongLong, we
 454     // should err on the safe side and update now anyway.
 455     return true;
 456 #endif
 457 }
 458
 459 // Reset the update time to provide a delay until the next
 460 // time we should update
 461 void wxUpdateUIEvent::ResetUpdateTime()
 462 {
 463 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 464     if (sm_updateInterval > 0)
 465     {
 466         wxLongLong now = wxGetLocalTimeMillis();
 467         if (now > (sm_lastUpdate + sm_updateInterval))
 468         {
 469             sm_lastUpdate = now;
 470         }
 471     }
 472 #endif
 473 }
 474
 475 /*
 476  * Idle events
 477  */
 478
 479 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 480
 481 // Can we send an idle event?
 482 bool wxIdleEvent::CanSend(wxWindow* win)
 483 {
 484     // Don't update if we've switched global updating off
 485     // and this window doesn't support updates.
 486     if (win &&
 487        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 488        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 489         return false;
 490
 491     return true;
 492 }
 493
 494 /*
 495  * Scroll events
 496  */
 497
 498 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 499                              int id,
 500                              int pos,
 501                              int orient)
 502     : wxCommandEvent(commandType, id)
 503 {
 504     m_extraLong = orient;
 505     m_commandInt = pos;
 506 }
 507
 508 /*
 509  * ScrollWin events
 510  */
 511
 512 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 513                                    int pos,
 514                                    int orient)
 515 {
 516     m_eventType = commandType;
 517     m_extraLong = orient;
 518     m_commandInt = pos;
 519 }
 520
 521 /*
 522  * Mouse events
 523  *
 524  */
 525
 526 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 527 {
 528     m_eventType = commandType;
 529     m_metaDown = false;
 530     m_altDown = false;
 531     m_controlDown = false;
 532     m_shiftDown = false;
 533     m_leftDown = false;
 534     m_rightDown = false;
 535     m_middleDown = false;
 536     m_x = 0;
 537     m_y = 0;
 538     m_wheelRotation = 0;
 539     m_wheelDelta = 0;
 540     m_linesPerAction = 0;
 541 }
 542
 543 void wxMouseEvent::Assign(const wxMouseEvent& event)
 544 {
 545     m_eventType = event.m_eventType;
 546
 547     m_x = event.m_x;
 548     m_y = event.m_y;
 549
 550     m_leftDown = event.m_leftDown;
 551     m_middleDown = event.m_middleDown;
 552     m_rightDown = event.m_rightDown;
 553
 554     m_controlDown = event.m_controlDown;
 555     m_shiftDown = event.m_shiftDown;
 556     m_altDown = event.m_altDown;
 557     m_metaDown = event.m_metaDown;
 558
 559     m_wheelRotation = event.m_wheelRotation;
 560     m_wheelDelta = event.m_wheelDelta;
 561     m_linesPerAction = event.m_linesPerAction;
 562 }
 563
 564 // return true if was a button dclick event
 565 bool wxMouseEvent::ButtonDClick(int but) const
 566 {
 567     switch (but)
 568     {
 569         default:
 570             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 571             // fall through
 572
 573         case wxMOUSE_BTN_ANY:
 574             return (LeftDClick() || MiddleDClick() || RightDClick());
 575
 576         case wxMOUSE_BTN_LEFT:
 577             return LeftDClick();
 578
 579         case wxMOUSE_BTN_MIDDLE:
 580             return MiddleDClick();
 581
 582         case wxMOUSE_BTN_RIGHT:
 583             return RightDClick();
 584     }
 585 }
 586
 587 // return true if was a button down event
 588 bool wxMouseEvent::ButtonDown(int but) const
 589 {
 590     switch (but)
 591     {
 592         default:
 593             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 594             // fall through
 595
 596         case wxMOUSE_BTN_ANY:
 597             return (LeftDown() || MiddleDown() || RightDown());
 598
 599         case wxMOUSE_BTN_LEFT:
 600             return LeftDown();
 601
 602         case wxMOUSE_BTN_MIDDLE:
 603             return MiddleDown();
 604
 605         case wxMOUSE_BTN_RIGHT:
 606             return RightDown();
 607     }
 608 }
 609
 610 // return true if was a button up event
 611 bool wxMouseEvent::ButtonUp(int but) const
 612 {
 613     switch (but)
 614     {
 615         default:
 616             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 617             // fall through
 618
 619         case wxMOUSE_BTN_ANY:
 620             return (LeftUp() || MiddleUp() || RightUp());
 621
 622         case wxMOUSE_BTN_LEFT:
 623             return LeftUp();
 624
 625         case wxMOUSE_BTN_MIDDLE:
 626             return MiddleUp();
 627
 628         case wxMOUSE_BTN_RIGHT:
 629             return RightUp();
 630     }
 631 }
 632
 633 // return true if the given button is currently changing state
 634 bool wxMouseEvent::Button(int but) const
 635 {
 636     switch (but)
 637     {
 638         default:
 639             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 640             // fall through
 641
 642         case wxMOUSE_BTN_ANY:
 643             return ButtonUp(wxMOUSE_BTN_ANY) ||
 644                     ButtonDown(wxMOUSE_BTN_ANY) ||
 645                         ButtonDClick(wxMOUSE_BTN_ANY);
 646
 647         case wxMOUSE_BTN_LEFT:
 648             return LeftDown() || LeftUp() || LeftDClick();
 649
 650         case wxMOUSE_BTN_MIDDLE:
 651             return MiddleDown() || MiddleUp() || MiddleDClick();
 652
 653         case wxMOUSE_BTN_RIGHT:
 654             return RightDown() || RightUp() || RightDClick();
 655     }
 656 }
 657
 658 bool wxMouseEvent::ButtonIsDown(int but) const
 659 {
 660     switch (but)
 661     {
 662         default:
 663             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 664             // fall through
 665
 666         case wxMOUSE_BTN_ANY:
 667             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 668
 669         case wxMOUSE_BTN_LEFT:
 670             return LeftIsDown();
 671
 672         case wxMOUSE_BTN_MIDDLE:
 673             return MiddleIsDown();
 674
 675         case wxMOUSE_BTN_RIGHT:
 676             return RightIsDown();
 677     }
 678 }
 679
 680 int wxMouseEvent::GetButton() const
 681 {
 682     for ( int i = 1; i <= 3; i++ )
 683     {
 684         if ( Button(i) )
 685         {
 686             return i;
 687         }
 688     }
 689
 690     return wxMOUSE_BTN_NONE;
 691 }
 692
 693 // Find the logical position of the event given the DC
 694 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 695 {
 696     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 697     return pt;
 698 }
 699
 700
 701 /*
 702  * Keyboard event
 703  *
 704  */
 705
 706 wxKeyEvent::wxKeyEvent(wxEventType type)
 707 {
 708     m_eventType = type;
 709     m_shiftDown = false;
 710     m_controlDown = false;
 711     m_metaDown = false;
 712     m_altDown = false;
 713     m_keyCode = 0;
 714     m_scanCode = 0;
 715 #if wxUSE_UNICODE
 716     m_uniChar = 0;
 717 #endif
 718 }
 719
 720 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 721     : wxEvent(evt)
 722 {
 723     m_x = evt.m_x;
 724     m_y = evt.m_y;
 725
 726     m_keyCode = evt.m_keyCode;
 727
 728     m_controlDown = evt.m_controlDown;
 729     m_shiftDown = evt.m_shiftDown;
 730     m_altDown = evt.m_altDown;
 731     m_metaDown = evt.m_metaDown;
 732     m_scanCode = evt.m_scanCode;
 733     m_rawCode = evt.m_rawCode;
 734     m_rawFlags = evt.m_rawFlags;
 735
 736 #if wxUSE_UNICODE
 737     m_uniChar = evt.m_uniChar;
 738 #endif
 739 }
 740
 741 #if WXWIN_COMPATIBILITY_2_6
 742 long wxKeyEvent::KeyCode() const
 743 {
 744     return m_keyCode;
 745 }
 746 #endif // WXWIN_COMPATIBILITY_2_6
 747
 748 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 749 {
 750     SetEventType(wxEVT_CREATE);
 751     SetEventObject(win);
 752 }
 753
 754 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 755 {
 756     SetEventType(wxEVT_DESTROY);
 757     SetEventObject(win);
 758 }
 759
 760 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 761                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 762 {
 763     SetEventObject(win);
 764 }
 765
 766 // ----------------------------------------------------------------------------
 767 // wxHelpEvent
 768 // ----------------------------------------------------------------------------
 769
 770 /* static */
 771 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 772 {
 773     if ( origin == Origin_Unknown )
 774     {
 775         // assume that the event comes from the help button if it's not from
 776         // keyboard and that pressing F1 always results in the help event
 777         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 778     }
 779
 780     return origin;
 781 }
 782
 783 #endif // wxUSE_GUI
 784
 785
 786 #if wxUSE_BASE
 787
 788 // ----------------------------------------------------------------------------
 789 // wxEventHashTable
 790 // ----------------------------------------------------------------------------
 791
 792 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 793
 794 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 795
 796 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 797                 : m_table(table),
 798                   m_rebuildHash(true)
 799 {
 800     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 801
 802     m_next = sm_first;
 803     if (m_next)
 804         m_next->m_previous = this;
 805     sm_first = this;
 806 }
 807
 808 wxEventHashTable::~wxEventHashTable()
 809 {
 810     if (m_next)
 811         m_next->m_previous = m_previous;
 812     if (m_previous)
 813         m_previous->m_next = m_next;
 814     if (sm_first == this)
 815         sm_first = m_next;
 816
 817     Clear();
 818 }
 819
 820 void wxEventHashTable::Clear()
 821 {
 822     size_t i;
 823     for(i = 0; i < m_size; i++)
 824     {
 825         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 826         if (eTTnode)
 827         {
 828             delete eTTnode;
 829         }
 830     }
 831
 832     // Necessary in order to not invoke the
 833     // overloaded delete operator when statics are cleaned up
 834     if (m_eventTypeTable)
 835         delete[] m_eventTypeTable;
 836
 837     m_eventTypeTable = NULL;
 838     m_size = 0;
 839 }
 840
 841 // Clear all tables
 842 void wxEventHashTable::ClearAll()
 843 {
 844     wxEventHashTable* table = sm_first;
 845     while (table)
 846     {
 847         table->Clear();
 848         table = table->m_next;
 849     }
 850 }
 851
 852 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 853 {
 854     if (m_rebuildHash)
 855     {
 856         InitHashTable();
 857         m_rebuildHash = false;
 858     }
 859
 860     if (!m_eventTypeTable)
 861         return false;
 862
 863     // Find all entries for the given event type.
 864     wxEventType eventType = event.GetEventType();
 865     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 866     if (eTTnode && eTTnode->eventType == eventType)
 867     {
 868         // Now start the search for an event handler
 869         // that can handle an event with the given ID.
 870         const wxEventTableEntryPointerArray&
 871             eventEntryTable = eTTnode->eventEntryTable;
 872
 873         const size_t count = eventEntryTable.GetCount();
 874         for (size_t n = 0; n < count; n++)
 875         {
 876             if ( wxEvtHandler::
 877                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 878             {
 879                 return true;
 880             }
 881         }
 882     }
 883
 884     return false;
 885 }
 886
 887 void wxEventHashTable::InitHashTable()
 888 {
 889     // Loop over the event tables and all its base tables.
 890     const wxEventTable *table = &m_table;
 891     while (table)
 892     {
 893         // Retrieve all valid event handler entries
 894         const wxEventTableEntry *entry = table->entries;
 895         while (entry->m_fn != 0)
 896         {
 897             // Add the event entry in the Hash.
 898             AddEntry(*entry);
 899
 900             entry++;
 901         }
 902
 903         table = table->baseTable;
 904     }
 905
 906     // Lets free some memory.
 907     size_t i;
 908     for(i = 0; i < m_size; i++)
 909     {
 910         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 911         if (eTTnode)
 912         {
 913             eTTnode->eventEntryTable.Shrink();
 914         }
 915     }
 916 }
 917
 918 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 919 {
 920     // This might happen 'accidentally' as the app is exiting
 921     if (!m_eventTypeTable)
 922         return;
 923
 924     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 925     EventTypeTablePointer  eTTnode = *peTTnode;
 926
 927     if (eTTnode)
 928     {
 929         if (eTTnode->eventType != entry.m_eventType)
 930         {
 931             // Resize the table!
 932             GrowEventTypeTable();
 933             // Try again to add it.
 934             AddEntry(entry);
 935             return;
 936         }
 937     }
 938     else
 939     {
 940         eTTnode = new EventTypeTable;
 941         eTTnode->eventType = entry.m_eventType;
 942         *peTTnode = eTTnode;
 943     }
 944
 945     // Fill all hash entries between entry.m_id and entry.m_lastId...
 946     eTTnode->eventEntryTable.Add(&entry);
 947 }
 948
 949 void wxEventHashTable::AllocEventTypeTable(size_t size)
 950 {
 951     m_eventTypeTable = new EventTypeTablePointer[size];
 952     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 953     m_size = size;
 954 }
 955
 956 void wxEventHashTable::GrowEventTypeTable()
 957 {
 958     size_t oldSize = m_size;
 959     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 960
 961     // TODO: Search the most optimal grow sequence
 962     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 963
 964     for ( size_t i = 0; i < oldSize; /* */ )
 965     {
 966         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 967         if (eTToldNode)
 968         {
 969             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 970             EventTypeTablePointer  eTTnode = *peTTnode;
 971
 972             // Check for collision, we don't want any.
 973             if (eTTnode)
 974             {
 975                 GrowEventTypeTable();
 976                 continue; // Don't increment the counter,
 977                           // as we still need to add this element.
 978             }
 979             else
 980             {
 981                 // Get the old value and put it in the new table.
 982                 *peTTnode = oldEventTypeTable[i];
 983             }
 984         }
 985
 986         i++;
 987     }
 988
 989     delete[] oldEventTypeTable;
 990 }
 991
 992
 993 // ----------------------------------------------------------------------------
 994 // wxEvtHandler
 995 // ----------------------------------------------------------------------------
 996
 997 /*
 998  * Event handler
 999  */
1000
1001 wxEvtHandler::wxEvtHandler()
1002 {
1003     m_nextHandler = (wxEvtHandler *) NULL;
1004     m_previousHandler = (wxEvtHandler *) NULL;
1005     m_enabled = true;
1006     m_dynamicEvents = (wxList *) NULL;
1007     m_pendingEvents = (wxList *) NULL;
1008 #if wxUSE_THREADS
1009 #  if !defined(__VISAGECPP__)
1010     m_eventsLocker = new wxCriticalSection;
1011 #  endif
1012 #endif
1013     // no client data (yet)
1014     m_clientData = NULL;
1015     m_clientDataType = wxClientData_None;
1016 }
1017
1018 wxEvtHandler::~wxEvtHandler()
1019 {
1020     // Takes itself out of the list of handlers
1021     if (m_previousHandler)
1022         m_previousHandler->m_nextHandler = m_nextHandler;
1023
1024     if (m_nextHandler)
1025         m_nextHandler->m_previousHandler = m_previousHandler;
1026
1027     if (m_dynamicEvents)
1028     {
1029         wxList::iterator it = m_dynamicEvents->begin(),
1030                          en = m_dynamicEvents->end();
1031         for (;it != en; ++it)
1032         {
1033 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1034             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1035 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1036             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1037 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1038
1039             if (entry->m_callbackUserData)
1040                 delete entry->m_callbackUserData;
1041             delete entry;
1042         }
1043         delete m_dynamicEvents;
1044     };
1045
1046     if (m_pendingEvents)
1047         m_pendingEvents->DeleteContents(true);
1048     delete m_pendingEvents;
1049
1050 #if wxUSE_THREADS
1051 #  if !defined(__VISAGECPP__)
1052     delete m_eventsLocker;
1053 #  endif
1054
1055     // Remove us from wxPendingEvents if necessary.
1056     if(wxPendingEventsLocker)
1057         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1058     if ( wxPendingEvents )
1059     {
1060         // Delete all occurences of this from the list of pending events
1061         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1062     }
1063     if(wxPendingEventsLocker)
1064         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1065 #endif
1066
1067     // we only delete object data, not untyped
1068     if ( m_clientDataType == wxClientData_Object )
1069         delete m_clientObject;
1070 }
1071
1072 #if wxUSE_THREADS
1073
1074 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1075 {
1076     // check that we are really in a child thread
1077     wxASSERT_MSG( !wxThread::IsMain(),
1078                   wxT("use ProcessEvent() in main thread") );
1079
1080     AddPendingEvent(event);
1081
1082     return true;
1083 }
1084
1085 void wxEvtHandler::ClearEventLocker()
1086 {
1087 #if !defined(__VISAGECPP__)
1088     delete m_eventsLocker;
1089     m_eventsLocker = NULL;
1090 #endif
1091 }
1092
1093 #endif // wxUSE_THREADS
1094
1095 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1096 {
1097     // 1) Add event to list of pending events of this event handler
1098
1099     wxEvent *eventCopy = event.Clone();
1100
1101     // we must be able to copy the events here so the event class must
1102     // implement Clone() properly instead of just providing a NULL stab for it
1103     wxCHECK_RET( eventCopy,
1104                  _T("events of this type aren't supposed to be posted") );
1105
1106     wxENTER_CRIT_SECT( Lock() );
1107
1108     if ( !m_pendingEvents )
1109       m_pendingEvents = new wxList;
1110
1111     m_pendingEvents->Append(eventCopy);
1112
1113     wxLEAVE_CRIT_SECT( Lock() );
1114
1115     // 2) Add this event handler to list of event handlers that
1116     //    have pending events.
1117
1118     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1119
1120     if ( !wxPendingEvents )
1121         wxPendingEvents = new wxList;
1122     wxPendingEvents->Append(this);
1123
1124     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1125
1126     // 3) Inform the system that new pending events are somewhere,
1127     //    and that these should be processed in idle time.
1128     wxWakeUpIdle();
1129 }
1130
1131 void wxEvtHandler::ProcessPendingEvents()
1132 {
1133     // this method is only called by wxApp if this handler does have pending
1134     // events
1135     wxCHECK_RET( m_pendingEvents,
1136                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1137
1138     wxENTER_CRIT_SECT( Lock() );
1139
1140     // we leave the loop once we have processed all events that were present at
1141     // the start of ProcessPendingEvents because otherwise we could get into
1142     // infinite loop if the pending event handler execution resulted in another
1143     // event being posted
1144     size_t n = m_pendingEvents->size();
1145     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1146           node;
1147           node = m_pendingEvents->GetFirst() )
1148     {
1149         wxEvent *event = (wxEvent *)node->GetData();
1150
1151         // It's importan we remove event from list before processing it.
1152         // Else a nested event loop, for example from a modal dialog, might
1153         // process the same event again.
1154         m_pendingEvents->Erase(node);
1155
1156         wxLEAVE_CRIT_SECT( Lock() );
1157
1158         ProcessEvent(*event);
1159         delete event;
1160
1161         wxENTER_CRIT_SECT( Lock() );
1162
1163         if ( --n == 0 )
1164             break;
1165     }
1166
1167     wxLEAVE_CRIT_SECT( Lock() );
1168 }
1169
1170 /*
1171  * Event table stuff
1172  */
1173 /* static */ bool
1174 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1175                                     wxEvtHandler *handler,
1176                                     wxEvent& event)
1177 {
1178     int tableId1 = entry.m_id,
1179         tableId2 = entry.m_lastId;
1180
1181     // match only if the event type is the same and the id is either -1 in
1182     // the event table (meaning "any") or the event id matches the id
1183     // specified in the event table either exactly or by falling into
1184     // range between first and last
1185     if ((tableId1 == wxID_ANY) ||
1186         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1187         (tableId2 != wxID_ANY &&
1188          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1189     {
1190         event.Skip(false);
1191         event.m_callbackUserData = entry.m_callbackUserData;
1192
1193 #if wxUSE_EXCEPTIONS
1194         if ( wxTheApp )
1195         {
1196             // call the handler via wxApp method which allows the user to catch
1197             // any exceptions which may be thrown by any handler in the program
1198             // in one place
1199             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1200         }
1201         else
1202 #endif // wxUSE_EXCEPTIONS
1203         {
1204             // no need for an extra virtual function call
1205             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1206         }
1207
1208         if (!event.GetSkipped())
1209             return true;
1210     }
1211
1212     return false;
1213 }
1214
1215 bool wxEvtHandler::TryParent(wxEvent& event)
1216 {
1217     if ( wxTheApp && (this != wxTheApp) )
1218     {
1219         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1220         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1221         // processed appropriately via SearchEventTable.
1222         if ( event.GetEventType() != wxEVT_IDLE )
1223         {
1224             if ( wxTheApp->ProcessEvent(event) )
1225                 return true;
1226         }
1227     }
1228
1229     return false;
1230 }
1231
1232 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1233 {
1234     // allow the application to hook into event processing
1235     if ( wxTheApp )
1236     {
1237         int rc = wxTheApp->FilterEvent(event);
1238         if ( rc != -1 )
1239         {
1240             wxASSERT_MSG( rc == 1 || rc == 0,
1241                           _T("unexpected wxApp::FilterEvent return value") );
1242
1243             return rc != 0;
1244         }
1245         //else: proceed normally
1246     }
1247
1248     // An event handler can be enabled or disabled
1249     if ( GetEvtHandlerEnabled() )
1250     {
1251         // if we have a validator, it has higher priority than our own event
1252         // table
1253         if ( TryValidator(event) )
1254             return true;
1255
1256         // Handle per-instance dynamic event tables first
1257         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1258             return true;
1259
1260         // Then static per-class event tables
1261         if ( GetEventHashTable().HandleEvent(event, this) )
1262             return true;
1263     }
1264
1265     // Try going down the event handler chain
1266     if ( GetNextHandler() )
1267     {
1268         if ( GetNextHandler()->ProcessEvent(event) )
1269             return true;
1270     }
1271
1272     // Finally propagate the event upwards the window chain and/or to the
1273     // application object as necessary
1274     return TryParent(event);
1275 }
1276
1277
1278 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1279 {
1280     const wxEventType eventType = event.GetEventType();
1281     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1282     {
1283         const wxEventTableEntry& entry = table.entries[i];
1284         if ( eventType == entry.m_eventType )
1285         {
1286             if ( ProcessEventIfMatches(entry, this, event) )
1287                 return true;
1288         }
1289     }
1290
1291     return false;
1292 }
1293
1294 void wxEvtHandler::Connect( int id, int lastId,
1295                             int eventType,
1296                             wxObjectEventFunction func,
1297                             wxObject *userData,
1298                             wxEvtHandler* eventSink )
1299 {
1300 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1301     wxEventTableEntry *entry = new wxEventTableEntry;
1302     entry->m_eventType = eventType;
1303     entry->m_id = id;
1304     entry->m_lastId = lastId;
1305     entry->m_fn = func;
1306     entry->m_callbackUserData = userData;
1307 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1308     wxDynamicEventTableEntry *entry =
1309         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1310 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1311
1312     if (!m_dynamicEvents)
1313         m_dynamicEvents = new wxList;
1314
1315     // Insert at the front of the list so most recent additions are found first
1316     m_dynamicEvents->Insert( (wxObject*) entry );
1317 }
1318
1319 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1320                   wxObjectEventFunction func,
1321                   wxObject *userData,
1322                   wxEvtHandler* eventSink )
1323 {
1324     if (!m_dynamicEvents)
1325         return false;
1326
1327     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1328     while (node)
1329     {
1330 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1331             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1332 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1333             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1334 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1335
1336         if ((entry->m_id == id) &&
1337             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1338             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1339             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1340             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1341             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1342         {
1343             if (entry->m_callbackUserData)
1344                 delete entry->m_callbackUserData;
1345             m_dynamicEvents->Erase( node );
1346             delete entry;
1347             return true;
1348         }
1349         node = node->GetNext();
1350     }
1351     return false;
1352 }
1353
1354 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1355 {
1356     wxCHECK_MSG( m_dynamicEvents, false,
1357                  wxT("caller should check that we have dynamic events") );
1358
1359     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1360     while (node)
1361     {
1362 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1363         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1364 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1365         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1366 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1367
1368         // get next node before (maybe) calling the event handler as it could
1369         // call Disconnect() invalidating the current node
1370         node = node->GetNext();
1371
1372         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1373         {
1374             wxEvtHandler *handler =
1375 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1376                                     entry->m_eventSink ? entry->m_eventSink
1377                                                        :
1378 #endif
1379                                                          this;
1380
1381             if ( ProcessEventIfMatches(*entry, handler, event) )
1382             {
1383                 return true;
1384             }
1385         }
1386     }
1387
1388     return false;
1389 }
1390
1391 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1392 {
1393     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1394                   wxT("can't have both object and void client data") );
1395
1396     if ( m_clientObject )
1397         delete m_clientObject;
1398
1399     m_clientObject = data;
1400     m_clientDataType = wxClientData_Object;
1401 }
1402
1403 wxClientData *wxEvtHandler::DoGetClientObject() const
1404 {
1405     // it's not an error to call GetClientObject() on a window which doesn't
1406     // have client data at all - NULL will be returned
1407     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1408                   wxT("this window doesn't have object client data") );
1409
1410     return m_clientObject;
1411 }
1412
1413 void wxEvtHandler::DoSetClientData( void *data )
1414 {
1415     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1416                   wxT("can't have both object and void client data") );
1417
1418     m_clientData = data;
1419     m_clientDataType = wxClientData_Void;
1420 }
1421
1422 void *wxEvtHandler::DoGetClientData() const
1423 {
1424     // it's not an error to call GetClientData() on a window which doesn't have
1425     // client data at all - NULL will be returned
1426     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1427                   wxT("this window doesn't have void client data") );
1428
1429     return m_clientData;
1430 }
1431
1432 #endif // wxUSE_BASE
1433
1434 #if wxUSE_GUI
1435
1436 // Find a window with the focus, that is also a descendant of the given window.
1437 // This is used to determine the window to initially send commands to.
1438 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1439 {
1440     // Process events starting with the window with the focus, if any.
1441     wxWindow* focusWin = wxWindow::FindFocus();
1442     wxWindow* win = focusWin;
1443
1444     // Check if this is a descendant of this frame.
1445     // If not, win will be set to NULL.
1446     while (win)
1447     {
1448         if (win == ancestor)
1449             break;
1450         else
1451             win = win->GetParent();
1452     }
1453     if (win == (wxWindow*) NULL)
1454         focusWin = (wxWindow*) NULL;
1455
1456     return focusWin;
1457 }
1458
1459 #endif // wxUSE_GUI