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
  34     #if wxUSE_GUI
  35         #include "wx/control.h"
  36         #include "wx/dc.h"
  37         #include "wx/textctrl.h"
  38     #endif // wxUSE_GUI
  39 #endif
  40
  41 #include "wx/module.h"
  42
  43 #if wxUSE_GUI
  44     #include "wx/validate.h"
  45 #if wxUSE_STOPWATCH
  46     #include "wx/stopwatch.h"
  47 #endif
  48 #endif // wxUSE_GUI
  49
  50 // ----------------------------------------------------------------------------
  51 // wxWin macros
  52 // ----------------------------------------------------------------------------
  53
  54 #if wxUSE_BASE
  55     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  56     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  57 #endif // wxUSE_BASE
  58
  59 #if wxUSE_GUI
  60     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  96 #endif // wxUSE_GUI
  97
  98 #if wxUSE_BASE
  99
 100 const wxEventTable *wxEvtHandler::GetEventTable() const
 101     { return &wxEvtHandler::sm_eventTable; }
 102
 103 const wxEventTable wxEvtHandler::sm_eventTable =
 104     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 105
 106 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 107     { return wxEvtHandler::sm_eventHashTable; }
 108
 109 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 110
 111 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 112     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 113
 114
 115 #ifdef __WXDEBUG__
 116 // Clear up event hash table contents or we can get problems
 117 // when C++ is cleaning up the static object
 118 class wxEventTableEntryModule: public wxModule
 119 {
 120 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 121 public:
 122     wxEventTableEntryModule() {}
 123     bool OnInit() { return true; }
 124     void OnExit()
 125     {
 126         wxEventHashTable::ClearAll();
 127     }
 128 };
 129 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 130 #endif
 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
 156 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 157
 158 #endif // wxUSE_BASE
 159
 160 #if wxUSE_GUI
 161
 162 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 163
 164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 180
 181 // Sockets and timers send events, too
 182 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 183
 184 // Mouse event types
 185 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 186 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 187 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 188 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 189 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 190 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 191 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 192 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 193 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 194 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 195 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 196 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 197 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 198 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 199 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 200 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 201
 202 // Non-client mouse events
 203 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 204 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 205 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 206 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 207 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 208 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 209 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 210 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 211 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 213 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 215
 216 // Character input event type
 217 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 218 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 219 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 220 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 221 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 222 #if wxUSE_HOTKEY
 223 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 224 #endif
 225
 226 // Set cursor event
 227 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 228
 229 // wxScrollbar and wxSlider event identifiers
 230 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 231 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 232 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 233 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 234 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 235 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 237 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 239
 240 // Scroll events from wxWindow
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 247 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 248 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 249
 250 // System events
 251 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 252 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 253 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 254 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 255 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 256 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 257 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 258 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 259 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 260 DEFINE_EVENT_TYPE(wxEVT_POWER)
 261 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 262 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 263 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 264 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 265 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 266 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 267 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 268 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 269 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 270 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 271 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 272 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 273 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 274 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 275 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 276 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 277 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 278 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 279 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 280 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 281 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 282 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 283 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 284 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 285 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 286 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 287 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 288 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 289 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 290 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 291
 292 // Clipboard events
 293 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 294 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 295 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 296
 297 // Generic command events
 298 // Note: a click is a higher-level event than button down/up
 299 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 304 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 305 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 306
 307 // Help events
 308 DEFINE_EVENT_TYPE(wxEVT_HELP)
 309 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 310
 311 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 312
 313 #endif // wxUSE_GUI
 314
 315 #if wxUSE_BASE
 316
 317 // ============================================================================
 318 // implementation
 319 // ============================================================================
 320
 321 // ----------------------------------------------------------------------------
 322 // event initialization
 323 // ----------------------------------------------------------------------------
 324
 325 int wxNewEventType()
 326 {
 327     // MT-FIXME
 328     static int s_lastUsedEventType = wxEVT_FIRST;
 329
 330     return s_lastUsedEventType++;
 331 }
 332
 333 // ----------------------------------------------------------------------------
 334 // wxEvent
 335 // ----------------------------------------------------------------------------
 336
 337 /*
 338  * General wxWidgets events, covering
 339  * all interesting things that might happen (button clicking, resizing,
 340  * setting text in widgets, etc.).
 341  *
 342  * For each completely new event type, derive a new event class.
 343  *
 344  */
 345
 346 wxEvent::wxEvent(int theId, wxEventType commandType )
 347 {
 348     m_eventType = commandType;
 349     m_eventObject = (wxObject *) NULL;
 350     m_timeStamp = 0;
 351     m_id = theId;
 352     m_skipped = false;
 353     m_callbackUserData = (wxObject *) NULL;
 354     m_isCommandEvent = false;
 355     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 356 }
 357
 358 wxEvent::wxEvent(const wxEvent &src)
 359     : wxObject()
 360     , m_eventObject(src.m_eventObject)
 361     , m_eventType(src.m_eventType)
 362     , m_timeStamp(src.m_timeStamp)
 363     , m_id(src.m_id)
 364     , m_callbackUserData(src.m_callbackUserData)
 365     , m_propagationLevel(src.m_propagationLevel)
 366     , m_skipped(src.m_skipped)
 367     , m_isCommandEvent(src.m_isCommandEvent)
 368 {
 369 }
 370
 371 #endif // wxUSE_BASE
 372
 373 #if wxUSE_GUI
 374
 375 /*
 376  * Command events
 377  *
 378  */
 379
 380 #ifdef __VISUALC__
 381     // 'this' : used in base member initializer list (for m_commandString)
 382     #pragma warning(disable:4355)
 383 #endif
 384
 385 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 386               : wxEvent(theId, commandType)
 387 #if WXWIN_COMPATIBILITY_2_4
 388               , m_commandString(this)
 389 #endif
 390 {
 391     m_clientData = (char *) NULL;
 392     m_clientObject = (wxClientData *) NULL;
 393     m_extraLong = 0;
 394     m_commandInt = 0;
 395     m_isCommandEvent = true;
 396
 397     // the command events are propagated upwards by default
 398     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 399 }
 400
 401 #ifdef __VISUALC__
 402     #pragma warning(default:4355)
 403 #endif
 404
 405 wxString wxCommandEvent::GetString() const
 406 {
 407     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 408         return m_cmdString;
 409     else
 410     {
 411 #if wxUSE_TEXTCTRL
 412         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 413         if(txt)
 414             return txt->GetValue();
 415         else
 416 #endif // wxUSE_TEXTCTRL
 417             return m_cmdString;
 418     }
 419 }
 420
 421 /*
 422  * UI update events
 423  */
 424
 425 #if wxUSE_LONGLONG
 426 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 427 #endif
 428
 429 long wxUpdateUIEvent::sm_updateInterval = 0;
 430
 431 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 432
 433 // Can we update?
 434 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 435 {
 436     // Don't update if we've switched global updating off
 437     // and this window doesn't support updates.
 438     if (win &&
 439        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 440        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 441         return false;
 442
 443     if (sm_updateInterval == -1)
 444         return false;
 445
 446     if (sm_updateInterval == 0)
 447         return true;
 448
 449 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 450     wxLongLong now = wxGetLocalTimeMillis();
 451     if (now > (sm_lastUpdate + sm_updateInterval))
 452     {
 453         return true;
 454     }
 455
 456     return false;
 457 #else
 458     // If we don't have wxStopWatch or wxLongLong, we
 459     // should err on the safe side and update now anyway.
 460     return true;
 461 #endif
 462 }
 463
 464 // Reset the update time to provide a delay until the next
 465 // time we should update
 466 void wxUpdateUIEvent::ResetUpdateTime()
 467 {
 468 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 469     if (sm_updateInterval > 0)
 470     {
 471         wxLongLong now = wxGetLocalTimeMillis();
 472         if (now > (sm_lastUpdate + sm_updateInterval))
 473         {
 474             sm_lastUpdate = now;
 475         }
 476     }
 477 #endif
 478 }
 479
 480 /*
 481  * Idle events
 482  */
 483
 484 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 485
 486 // Can we send an idle event?
 487 bool wxIdleEvent::CanSend(wxWindow* win)
 488 {
 489     // Don't update if we've switched global updating off
 490     // and this window doesn't support updates.
 491     if (win &&
 492        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 493        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 494         return false;
 495
 496     return true;
 497 }
 498
 499 /*
 500  * Scroll events
 501  */
 502
 503 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 504                              int id,
 505                              int pos,
 506                              int orient)
 507     : wxCommandEvent(commandType, id)
 508 {
 509     m_extraLong = orient;
 510     m_commandInt = pos;
 511 }
 512
 513 /*
 514  * ScrollWin events
 515  */
 516
 517 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 518                                    int pos,
 519                                    int orient)
 520 {
 521     m_eventType = commandType;
 522     m_extraLong = orient;
 523     m_commandInt = pos;
 524 }
 525
 526 /*
 527  * Mouse events
 528  *
 529  */
 530
 531 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 532 {
 533     m_eventType = commandType;
 534     m_metaDown = false;
 535     m_altDown = false;
 536     m_controlDown = false;
 537     m_shiftDown = false;
 538     m_leftDown = false;
 539     m_rightDown = false;
 540     m_middleDown = false;
 541     m_x = 0;
 542     m_y = 0;
 543     m_wheelRotation = 0;
 544     m_wheelDelta = 0;
 545     m_linesPerAction = 0;
 546 }
 547
 548 void wxMouseEvent::Assign(const wxMouseEvent& event)
 549 {
 550     m_eventType = event.m_eventType;
 551
 552     m_x = event.m_x;
 553     m_y = event.m_y;
 554
 555     m_leftDown = event.m_leftDown;
 556     m_middleDown = event.m_middleDown;
 557     m_rightDown = event.m_rightDown;
 558
 559     m_controlDown = event.m_controlDown;
 560     m_shiftDown = event.m_shiftDown;
 561     m_altDown = event.m_altDown;
 562     m_metaDown = event.m_metaDown;
 563
 564     m_wheelRotation = event.m_wheelRotation;
 565     m_wheelDelta = event.m_wheelDelta;
 566     m_linesPerAction = event.m_linesPerAction;
 567 }
 568
 569 // return true if was a button dclick event
 570 bool wxMouseEvent::ButtonDClick(int but) const
 571 {
 572     switch (but)
 573     {
 574         default:
 575             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 576             // fall through
 577
 578         case wxMOUSE_BTN_ANY:
 579             return (LeftDClick() || MiddleDClick() || RightDClick());
 580
 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 }
 591
 592 // return true if was a button down event
 593 bool wxMouseEvent::ButtonDown(int but) const
 594 {
 595     switch (but)
 596     {
 597         default:
 598             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 599             // fall through
 600
 601         case wxMOUSE_BTN_ANY:
 602             return (LeftDown() || MiddleDown() || RightDown());
 603
 604         case wxMOUSE_BTN_LEFT:
 605             return LeftDown();
 606
 607         case wxMOUSE_BTN_MIDDLE:
 608             return MiddleDown();
 609
 610         case wxMOUSE_BTN_RIGHT:
 611             return RightDown();
 612     }
 613 }
 614
 615 // return true if was a button up event
 616 bool wxMouseEvent::ButtonUp(int but) const
 617 {
 618     switch (but)
 619     {
 620         default:
 621             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 622             // fall through
 623
 624         case wxMOUSE_BTN_ANY:
 625             return (LeftUp() || MiddleUp() || RightUp());
 626
 627         case wxMOUSE_BTN_LEFT:
 628             return LeftUp();
 629
 630         case wxMOUSE_BTN_MIDDLE:
 631             return MiddleUp();
 632
 633         case wxMOUSE_BTN_RIGHT:
 634             return RightUp();
 635     }
 636 }
 637
 638 // return true if the given button is currently changing state
 639 bool wxMouseEvent::Button(int but) const
 640 {
 641     switch (but)
 642     {
 643         default:
 644             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 645             // fall through
 646
 647         case wxMOUSE_BTN_ANY:
 648             return ButtonUp(wxMOUSE_BTN_ANY) ||
 649                     ButtonDown(wxMOUSE_BTN_ANY) ||
 650                         ButtonDClick(wxMOUSE_BTN_ANY);
 651
 652         case wxMOUSE_BTN_LEFT:
 653             return LeftDown() || LeftUp() || LeftDClick();
 654
 655         case wxMOUSE_BTN_MIDDLE:
 656             return MiddleDown() || MiddleUp() || MiddleDClick();
 657
 658         case wxMOUSE_BTN_RIGHT:
 659             return RightDown() || RightUp() || RightDClick();
 660     }
 661 }
 662
 663 bool wxMouseEvent::ButtonIsDown(int but) const
 664 {
 665     switch (but)
 666     {
 667         default:
 668             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 669             // fall through
 670
 671         case wxMOUSE_BTN_ANY:
 672             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 673
 674         case wxMOUSE_BTN_LEFT:
 675             return LeftIsDown();
 676
 677         case wxMOUSE_BTN_MIDDLE:
 678             return MiddleIsDown();
 679
 680         case wxMOUSE_BTN_RIGHT:
 681             return RightIsDown();
 682     }
 683 }
 684
 685 int wxMouseEvent::GetButton() const
 686 {
 687     for ( int i = 1; i <= 3; i++ )
 688     {
 689         if ( Button(i) )
 690         {
 691             return i;
 692         }
 693     }
 694
 695     return wxMOUSE_BTN_NONE;
 696 }
 697
 698 // Find the logical position of the event given the DC
 699 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 700 {
 701     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 702     return pt;
 703 }
 704
 705
 706 /*
 707  * Keyboard event
 708  *
 709  */
 710
 711 wxKeyEvent::wxKeyEvent(wxEventType type)
 712 {
 713     m_eventType = type;
 714     m_shiftDown = false;
 715     m_controlDown = false;
 716     m_metaDown = false;
 717     m_altDown = false;
 718     m_keyCode = 0;
 719     m_scanCode = 0;
 720 #if wxUSE_UNICODE
 721     m_uniChar = 0;
 722 #endif
 723 }
 724
 725 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 726     : wxEvent(evt)
 727 {
 728     m_x = evt.m_x;
 729     m_y = evt.m_y;
 730
 731     m_keyCode = evt.m_keyCode;
 732
 733     m_controlDown = evt.m_controlDown;
 734     m_shiftDown = evt.m_shiftDown;
 735     m_altDown = evt.m_altDown;
 736     m_metaDown = evt.m_metaDown;
 737     m_scanCode = evt.m_scanCode;
 738     m_rawCode = evt.m_rawCode;
 739     m_rawFlags = evt.m_rawFlags;
 740
 741 #if wxUSE_UNICODE
 742     m_uniChar = evt.m_uniChar;
 743 #endif
 744 }
 745
 746 #if WXWIN_COMPATIBILITY_2_6
 747 long wxKeyEvent::KeyCode() const
 748 {
 749     return m_keyCode;
 750 }
 751 #endif // WXWIN_COMPATIBILITY_2_6
 752
 753 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 754 {
 755     SetEventType(wxEVT_CREATE);
 756     SetEventObject(win);
 757 }
 758
 759 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 760 {
 761     SetEventType(wxEVT_DESTROY);
 762     SetEventObject(win);
 763 }
 764
 765 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 766                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 767 {
 768     SetEventObject(win);
 769 }
 770
 771 #endif // wxUSE_GUI
 772
 773
 774 #if wxUSE_BASE
 775
 776 // ----------------------------------------------------------------------------
 777 // wxEventHashTable
 778 // ----------------------------------------------------------------------------
 779
 780 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 781
 782 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 783
 784 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 785                 : m_table(table),
 786                   m_rebuildHash(true)
 787 {
 788     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 789
 790     m_next = sm_first;
 791     if (m_next)
 792         m_next->m_previous = this;
 793     sm_first = this;
 794 }
 795
 796 wxEventHashTable::~wxEventHashTable()
 797 {
 798     if (m_next)
 799         m_next->m_previous = m_previous;
 800     if (m_previous)
 801         m_previous->m_next = m_next;
 802     if (sm_first == this)
 803         sm_first = m_next;
 804
 805     Clear();
 806 }
 807
 808 void wxEventHashTable::Clear()
 809 {
 810     size_t i;
 811     for(i = 0; i < m_size; i++)
 812     {
 813         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 814         if (eTTnode)
 815         {
 816             delete eTTnode;
 817         }
 818     }
 819
 820     // Necessary in order to not invoke the
 821     // overloaded delete operator when statics are cleaned up
 822     if (m_eventTypeTable)
 823         delete[] m_eventTypeTable;
 824
 825     m_eventTypeTable = NULL;
 826     m_size = 0;
 827 }
 828
 829 // Clear all tables
 830 void wxEventHashTable::ClearAll()
 831 {
 832     wxEventHashTable* table = sm_first;
 833     while (table)
 834     {
 835         table->Clear();
 836         table = table->m_next;
 837     }
 838 }
 839
 840 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 841 {
 842     if (m_rebuildHash)
 843     {
 844         InitHashTable();
 845         m_rebuildHash = false;
 846     }
 847
 848     if (!m_eventTypeTable)
 849         return false;
 850
 851     // Find all entries for the given event type.
 852     wxEventType eventType = event.GetEventType();
 853     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 854     if (eTTnode && eTTnode->eventType == eventType)
 855     {
 856         // Now start the search for an event handler
 857         // that can handle an event with the given ID.
 858         const wxEventTableEntryPointerArray&
 859             eventEntryTable = eTTnode->eventEntryTable;
 860
 861         const size_t count = eventEntryTable.GetCount();
 862         for (size_t n = 0; n < count; n++)
 863         {
 864             if ( wxEvtHandler::
 865                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 866             {
 867                 return true;
 868             }
 869         }
 870     }
 871
 872     return false;
 873 }
 874
 875 void wxEventHashTable::InitHashTable()
 876 {
 877     // Loop over the event tables and all its base tables.
 878     const wxEventTable *table = &m_table;
 879     while (table)
 880     {
 881         // Retrieve all valid event handler entries
 882         const wxEventTableEntry *entry = table->entries;
 883         while (entry->m_fn != 0)
 884         {
 885             // Add the event entry in the Hash.
 886             AddEntry(*entry);
 887
 888             entry++;
 889         }
 890
 891         table = table->baseTable;
 892     }
 893
 894     // Lets free some memory.
 895     size_t i;
 896     for(i = 0; i < m_size; i++)
 897     {
 898         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 899         if (eTTnode)
 900         {
 901             eTTnode->eventEntryTable.Shrink();
 902         }
 903     }
 904 }
 905
 906 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 907 {
 908     // This might happen 'accidentally' as the app is exiting
 909     if (!m_eventTypeTable)
 910         return;
 911
 912     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 913     EventTypeTablePointer  eTTnode = *peTTnode;
 914
 915     if (eTTnode)
 916     {
 917         if (eTTnode->eventType != entry.m_eventType)
 918         {
 919             // Resize the table!
 920             GrowEventTypeTable();
 921             // Try again to add it.
 922             AddEntry(entry);
 923             return;
 924         }
 925     }
 926     else
 927     {
 928         eTTnode = new EventTypeTable;
 929         eTTnode->eventType = entry.m_eventType;
 930         *peTTnode = eTTnode;
 931     }
 932
 933     // Fill all hash entries between entry.m_id and entry.m_lastId...
 934     eTTnode->eventEntryTable.Add(&entry);
 935 }
 936
 937 void wxEventHashTable::AllocEventTypeTable(size_t size)
 938 {
 939     m_eventTypeTable = new EventTypeTablePointer[size];
 940     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 941     m_size = size;
 942 }
 943
 944 void wxEventHashTable::GrowEventTypeTable()
 945 {
 946     size_t oldSize = m_size;
 947     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 948
 949     // TODO: Search the most optimal grow sequence
 950     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 951
 952     for ( size_t i = 0; i < oldSize; /* */ )
 953     {
 954         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 955         if (eTToldNode)
 956         {
 957             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 958             EventTypeTablePointer  eTTnode = *peTTnode;
 959
 960             // Check for collision, we don't want any.
 961             if (eTTnode)
 962             {
 963                 GrowEventTypeTable();
 964                 continue; // Don't increment the counter,
 965                           // as we still need to add this element.
 966             }
 967             else
 968             {
 969                 // Get the old value and put it in the new table.
 970                 *peTTnode = oldEventTypeTable[i];
 971             }
 972         }
 973
 974         i++;
 975     }
 976
 977     delete[] oldEventTypeTable;
 978 }
 979
 980
 981 // ----------------------------------------------------------------------------
 982 // wxEvtHandler
 983 // ----------------------------------------------------------------------------
 984
 985 /*
 986  * Event handler
 987  */
 988
 989 wxEvtHandler::wxEvtHandler()
 990 {
 991     m_nextHandler = (wxEvtHandler *) NULL;
 992     m_previousHandler = (wxEvtHandler *) NULL;
 993     m_enabled = true;
 994     m_dynamicEvents = (wxList *) NULL;
 995     m_pendingEvents = (wxList *) NULL;
 996 #if wxUSE_THREADS
 997 #  if !defined(__VISAGECPP__)
 998     m_eventsLocker = new wxCriticalSection;
 999 #  endif
1000 #endif
1001     // no client data (yet)
1002     m_clientData = NULL;
1003     m_clientDataType = wxClientData_None;
1004 }
1005
1006 wxEvtHandler::~wxEvtHandler()
1007 {
1008     // Takes itself out of the list of handlers
1009     if (m_previousHandler)
1010         m_previousHandler->m_nextHandler = m_nextHandler;
1011
1012     if (m_nextHandler)
1013         m_nextHandler->m_previousHandler = m_previousHandler;
1014
1015     if (m_dynamicEvents)
1016     {
1017         wxList::iterator it = m_dynamicEvents->begin(),
1018                          en = m_dynamicEvents->end();
1019         for (;it != en; ++it)
1020         {
1021 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1022             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1023 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1024             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1025 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1026
1027             if (entry->m_callbackUserData)
1028                 delete entry->m_callbackUserData;
1029             delete entry;
1030         }
1031         delete m_dynamicEvents;
1032     };
1033
1034     if (m_pendingEvents)
1035         m_pendingEvents->DeleteContents(true);
1036     delete m_pendingEvents;
1037
1038 #if wxUSE_THREADS
1039 #  if !defined(__VISAGECPP__)
1040     delete m_eventsLocker;
1041 #  endif
1042
1043     // Remove us from wxPendingEvents if necessary.
1044     if(wxPendingEventsLocker)
1045         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1046     if ( wxPendingEvents )
1047     {
1048         // Delete all occurences of this from the list of pending events
1049         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1050     }
1051     if(wxPendingEventsLocker)
1052         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1053 #endif
1054
1055     // we only delete object data, not untyped
1056     if ( m_clientDataType == wxClientData_Object )
1057         delete m_clientObject;
1058 }
1059
1060 #if wxUSE_THREADS
1061
1062 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1063 {
1064     // check that we are really in a child thread
1065     wxASSERT_MSG( !wxThread::IsMain(),
1066                   wxT("use ProcessEvent() in main thread") );
1067
1068     AddPendingEvent(event);
1069
1070     return true;
1071 }
1072
1073 void wxEvtHandler::ClearEventLocker()
1074 {
1075 #if !defined(__VISAGECPP__)
1076     delete m_eventsLocker;
1077     m_eventsLocker = NULL;
1078 #endif
1079 }
1080
1081 #endif // wxUSE_THREADS
1082
1083 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1084 {
1085     // 1) Add event to list of pending events of this event handler
1086
1087     wxEvent *eventCopy = event.Clone();
1088
1089     // we must be able to copy the events here so the event class must
1090     // implement Clone() properly instead of just providing a NULL stab for it
1091     wxCHECK_RET( eventCopy,
1092                  _T("events of this type aren't supposed to be posted") );
1093
1094     wxENTER_CRIT_SECT( Lock() );
1095
1096     if ( !m_pendingEvents )
1097       m_pendingEvents = new wxList;
1098
1099     m_pendingEvents->Append(eventCopy);
1100
1101     wxLEAVE_CRIT_SECT( Lock() );
1102
1103     // 2) Add this event handler to list of event handlers that
1104     //    have pending events.
1105
1106     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1107
1108     if ( !wxPendingEvents )
1109         wxPendingEvents = new wxList;
1110     wxPendingEvents->Append(this);
1111
1112     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1113
1114     // 3) Inform the system that new pending events are somewhere,
1115     //    and that these should be processed in idle time.
1116     wxWakeUpIdle();
1117 }
1118
1119 void wxEvtHandler::ProcessPendingEvents()
1120 {
1121     // this method is only called by wxApp if this handler does have pending
1122     // events
1123     wxCHECK_RET( m_pendingEvents,
1124                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1125
1126     wxENTER_CRIT_SECT( Lock() );
1127
1128     // we leave the loop once we have processed all events that were present at
1129     // the start of ProcessPendingEvents because otherwise we could get into
1130     // infinite loop if the pending event handler execution resulted in another
1131     // event being posted
1132     size_t n = m_pendingEvents->size();
1133     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1134           node;
1135           node = m_pendingEvents->GetFirst() )
1136     {
1137         wxEvent *event = (wxEvent *)node->GetData();
1138
1139         // It's importan we remove event from list before processing it.
1140         // Else a nested event loop, for example from a modal dialog, might
1141         // process the same event again.
1142         m_pendingEvents->Erase(node);
1143
1144         wxLEAVE_CRIT_SECT( Lock() );
1145
1146         ProcessEvent(*event);
1147         delete event;
1148
1149         wxENTER_CRIT_SECT( Lock() );
1150
1151         if ( --n == 0 )
1152             break;
1153     }
1154
1155     wxLEAVE_CRIT_SECT( Lock() );
1156 }
1157
1158 /*
1159  * Event table stuff
1160  */
1161 /* static */ bool
1162 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1163                                     wxEvtHandler *handler,
1164                                     wxEvent& event)
1165 {
1166     int tableId1 = entry.m_id,
1167         tableId2 = entry.m_lastId;
1168
1169     // match only if the event type is the same and the id is either -1 in
1170     // the event table (meaning "any") or the event id matches the id
1171     // specified in the event table either exactly or by falling into
1172     // range between first and last
1173     if ((tableId1 == wxID_ANY) ||
1174         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1175         (tableId2 != wxID_ANY &&
1176          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1177     {
1178         event.Skip(false);
1179         event.m_callbackUserData = entry.m_callbackUserData;
1180
1181 #if wxUSE_EXCEPTIONS
1182         if ( wxTheApp )
1183         {
1184             // call the handler via wxApp method which allows the user to catch
1185             // any exceptions which may be thrown by any handler in the program
1186             // in one place
1187             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1188         }
1189         else
1190 #endif // wxUSE_EXCEPTIONS
1191         {
1192             // no need for an extra virtual function call
1193             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1194         }
1195
1196         if (!event.GetSkipped())
1197             return true;
1198     }
1199
1200     return false;
1201 }
1202
1203 bool wxEvtHandler::TryParent(wxEvent& event)
1204 {
1205     if ( wxTheApp && (this != wxTheApp) )
1206     {
1207         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1208         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1209         // processed appropriately via SearchEventTable.
1210         if ( event.GetEventType() != wxEVT_IDLE )
1211         {
1212             if ( wxTheApp->ProcessEvent(event) )
1213                 return true;
1214         }
1215     }
1216
1217     return false;
1218 }
1219
1220 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1221 {
1222     // allow the application to hook into event processing
1223     if ( wxTheApp )
1224     {
1225         int rc = wxTheApp->FilterEvent(event);
1226         if ( rc != -1 )
1227         {
1228             wxASSERT_MSG( rc == 1 || rc == 0,
1229                           _T("unexpected wxApp::FilterEvent return value") );
1230
1231             return rc != 0;
1232         }
1233         //else: proceed normally
1234     }
1235
1236     // An event handler can be enabled or disabled
1237     if ( GetEvtHandlerEnabled() )
1238     {
1239         // if we have a validator, it has higher priority than our own event
1240         // table
1241         if ( TryValidator(event) )
1242             return true;
1243
1244         // Handle per-instance dynamic event tables first
1245         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1246             return true;
1247
1248         // Then static per-class event tables
1249         if ( GetEventHashTable().HandleEvent(event, this) )
1250             return true;
1251     }
1252
1253     // Try going down the event handler chain
1254     if ( GetNextHandler() )
1255     {
1256         if ( GetNextHandler()->ProcessEvent(event) )
1257             return true;
1258     }
1259
1260     // Finally propagate the event upwards the window chain and/or to the
1261     // application object as necessary
1262     return TryParent(event);
1263 }
1264
1265
1266 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1267 {
1268     const wxEventType eventType = event.GetEventType();
1269     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1270     {
1271         const wxEventTableEntry& entry = table.entries[i];
1272         if ( eventType == entry.m_eventType )
1273         {
1274             if ( ProcessEventIfMatches(entry, this, event) )
1275                 return true;
1276         }
1277     }
1278
1279     return false;
1280 }
1281
1282 void wxEvtHandler::Connect( int id, int lastId,
1283                             int eventType,
1284                             wxObjectEventFunction func,
1285                             wxObject *userData,
1286                             wxEvtHandler* eventSink )
1287 {
1288 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1289     wxEventTableEntry *entry = new wxEventTableEntry;
1290     entry->m_eventType = eventType;
1291     entry->m_id = id;
1292     entry->m_lastId = lastId;
1293     entry->m_fn = func;
1294     entry->m_callbackUserData = userData;
1295 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1296     wxDynamicEventTableEntry *entry =
1297         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1298 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1299
1300     if (!m_dynamicEvents)
1301         m_dynamicEvents = new wxList;
1302
1303     // Insert at the front of the list so most recent additions are found first
1304     m_dynamicEvents->Insert( (wxObject*) entry );
1305 }
1306
1307 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1308                   wxObjectEventFunction func,
1309                   wxObject *userData,
1310                   wxEvtHandler* eventSink )
1311 {
1312     if (!m_dynamicEvents)
1313         return false;
1314
1315     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1316     while (node)
1317     {
1318 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1319             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1320 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1321             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1322 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1323
1324         if ((entry->m_id == id) &&
1325             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1326             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1327             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1328             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1329             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1330         {
1331             if (entry->m_callbackUserData)
1332                 delete entry->m_callbackUserData;
1333             m_dynamicEvents->Erase( node );
1334             delete entry;
1335             return true;
1336         }
1337         node = node->GetNext();
1338     }
1339     return false;
1340 }
1341
1342 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1343 {
1344     wxCHECK_MSG( m_dynamicEvents, false,
1345                  wxT("caller should check that we have dynamic events") );
1346
1347     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1348     while (node)
1349     {
1350 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1351         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1352 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1353         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1354 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1355
1356         // get next node before (maybe) calling the event handler as it could
1357         // call Disconnect() invalidating the current node
1358         node = node->GetNext();
1359
1360         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1361         {
1362             wxEvtHandler *handler =
1363 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1364                                     entry->m_eventSink ? entry->m_eventSink
1365                                                        :
1366 #endif
1367                                                          this;
1368
1369             if ( ProcessEventIfMatches(*entry, handler, event) )
1370             {
1371                 return true;
1372             }
1373         }
1374     }
1375
1376     return false;
1377 }
1378
1379 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1380 {
1381     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1382                   wxT("can't have both object and void client data") );
1383
1384     if ( m_clientObject )
1385         delete m_clientObject;
1386
1387     m_clientObject = data;
1388     m_clientDataType = wxClientData_Object;
1389 }
1390
1391 wxClientData *wxEvtHandler::DoGetClientObject() const
1392 {
1393     // it's not an error to call GetClientObject() on a window which doesn't
1394     // have client data at all - NULL will be returned
1395     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1396                   wxT("this window doesn't have object client data") );
1397
1398     return m_clientObject;
1399 }
1400
1401 void wxEvtHandler::DoSetClientData( void *data )
1402 {
1403     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1404                   wxT("can't have both object and void client data") );
1405
1406     m_clientData = data;
1407     m_clientDataType = wxClientData_Void;
1408 }
1409
1410 void *wxEvtHandler::DoGetClientData() const
1411 {
1412     // it's not an error to call GetClientData() on a window which doesn't have
1413     // client data at all - NULL will be returned
1414     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1415                   wxT("this window doesn't have void client data") );
1416
1417     return m_clientData;
1418 }
1419
1420 #endif // wxUSE_BASE
1421
1422 #if wxUSE_GUI
1423
1424 // Find a window with the focus, that is also a descendant of the given window.
1425 // This is used to determine the window to initially send commands to.
1426 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1427 {
1428     // Process events starting with the window with the focus, if any.
1429     wxWindow* focusWin = wxWindow::FindFocus();
1430     wxWindow* win = focusWin;
1431
1432     // Check if this is a descendant of this frame.
1433     // If not, win will be set to NULL.
1434     while (win)
1435     {
1436         if (win == ancestor)
1437             break;
1438         else
1439             win = win->GetParent();
1440     }
1441     if (win == (wxWindow*) NULL)
1442         focusWin = (wxWindow*) NULL;
1443
1444     return focusWin;
1445 }
1446
1447 #endif // wxUSE_GUI