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 // ----------------------------------------------------------------------------
 772 // wxHelpEvent
 773 // ----------------------------------------------------------------------------
 774
 775 /* static */
 776 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 777 {
 778     if ( origin == Origin_Unknown )
 779     {
 780         // assume that the event comes from the help button if it's not from
 781         // keyboard and that pressing F1 always results in the help event
 782         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 783     }
 784
 785     return origin;
 786 }
 787
 788 #endif // wxUSE_GUI
 789
 790
 791 #if wxUSE_BASE
 792
 793 // ----------------------------------------------------------------------------
 794 // wxEventHashTable
 795 // ----------------------------------------------------------------------------
 796
 797 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 798
 799 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 800
 801 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 802                 : m_table(table),
 803                   m_rebuildHash(true)
 804 {
 805     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 806
 807     m_next = sm_first;
 808     if (m_next)
 809         m_next->m_previous = this;
 810     sm_first = this;
 811 }
 812
 813 wxEventHashTable::~wxEventHashTable()
 814 {
 815     if (m_next)
 816         m_next->m_previous = m_previous;
 817     if (m_previous)
 818         m_previous->m_next = m_next;
 819     if (sm_first == this)
 820         sm_first = m_next;
 821
 822     Clear();
 823 }
 824
 825 void wxEventHashTable::Clear()
 826 {
 827     size_t i;
 828     for(i = 0; i < m_size; i++)
 829     {
 830         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 831         if (eTTnode)
 832         {
 833             delete eTTnode;
 834         }
 835     }
 836
 837     // Necessary in order to not invoke the
 838     // overloaded delete operator when statics are cleaned up
 839     if (m_eventTypeTable)
 840         delete[] m_eventTypeTable;
 841
 842     m_eventTypeTable = NULL;
 843     m_size = 0;
 844 }
 845
 846 // Clear all tables
 847 void wxEventHashTable::ClearAll()
 848 {
 849     wxEventHashTable* table = sm_first;
 850     while (table)
 851     {
 852         table->Clear();
 853         table = table->m_next;
 854     }
 855 }
 856
 857 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 858 {
 859     if (m_rebuildHash)
 860     {
 861         InitHashTable();
 862         m_rebuildHash = false;
 863     }
 864
 865     if (!m_eventTypeTable)
 866         return false;
 867
 868     // Find all entries for the given event type.
 869     wxEventType eventType = event.GetEventType();
 870     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 871     if (eTTnode && eTTnode->eventType == eventType)
 872     {
 873         // Now start the search for an event handler
 874         // that can handle an event with the given ID.
 875         const wxEventTableEntryPointerArray&
 876             eventEntryTable = eTTnode->eventEntryTable;
 877
 878         const size_t count = eventEntryTable.GetCount();
 879         for (size_t n = 0; n < count; n++)
 880         {
 881             if ( wxEvtHandler::
 882                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 883             {
 884                 return true;
 885             }
 886         }
 887     }
 888
 889     return false;
 890 }
 891
 892 void wxEventHashTable::InitHashTable()
 893 {
 894     // Loop over the event tables and all its base tables.
 895     const wxEventTable *table = &m_table;
 896     while (table)
 897     {
 898         // Retrieve all valid event handler entries
 899         const wxEventTableEntry *entry = table->entries;
 900         while (entry->m_fn != 0)
 901         {
 902             // Add the event entry in the Hash.
 903             AddEntry(*entry);
 904
 905             entry++;
 906         }
 907
 908         table = table->baseTable;
 909     }
 910
 911     // Lets free some memory.
 912     size_t i;
 913     for(i = 0; i < m_size; i++)
 914     {
 915         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 916         if (eTTnode)
 917         {
 918             eTTnode->eventEntryTable.Shrink();
 919         }
 920     }
 921 }
 922
 923 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 924 {
 925     // This might happen 'accidentally' as the app is exiting
 926     if (!m_eventTypeTable)
 927         return;
 928
 929     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 930     EventTypeTablePointer  eTTnode = *peTTnode;
 931
 932     if (eTTnode)
 933     {
 934         if (eTTnode->eventType != entry.m_eventType)
 935         {
 936             // Resize the table!
 937             GrowEventTypeTable();
 938             // Try again to add it.
 939             AddEntry(entry);
 940             return;
 941         }
 942     }
 943     else
 944     {
 945         eTTnode = new EventTypeTable;
 946         eTTnode->eventType = entry.m_eventType;
 947         *peTTnode = eTTnode;
 948     }
 949
 950     // Fill all hash entries between entry.m_id and entry.m_lastId...
 951     eTTnode->eventEntryTable.Add(&entry);
 952 }
 953
 954 void wxEventHashTable::AllocEventTypeTable(size_t size)
 955 {
 956     m_eventTypeTable = new EventTypeTablePointer[size];
 957     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 958     m_size = size;
 959 }
 960
 961 void wxEventHashTable::GrowEventTypeTable()
 962 {
 963     size_t oldSize = m_size;
 964     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 965
 966     // TODO: Search the most optimal grow sequence
 967     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 968
 969     for ( size_t i = 0; i < oldSize; /* */ )
 970     {
 971         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 972         if (eTToldNode)
 973         {
 974             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 975             EventTypeTablePointer  eTTnode = *peTTnode;
 976
 977             // Check for collision, we don't want any.
 978             if (eTTnode)
 979             {
 980                 GrowEventTypeTable();
 981                 continue; // Don't increment the counter,
 982                           // as we still need to add this element.
 983             }
 984             else
 985             {
 986                 // Get the old value and put it in the new table.
 987                 *peTTnode = oldEventTypeTable[i];
 988             }
 989         }
 990
 991         i++;
 992     }
 993
 994     delete[] oldEventTypeTable;
 995 }
 996
 997
 998 // ----------------------------------------------------------------------------
 999 // wxEvtHandler
1000 // ----------------------------------------------------------------------------
1001
1002 /*
1003  * Event handler
1004  */
1005
1006 wxEvtHandler::wxEvtHandler()
1007 {
1008     m_nextHandler = (wxEvtHandler *) NULL;
1009     m_previousHandler = (wxEvtHandler *) NULL;
1010     m_enabled = true;
1011     m_dynamicEvents = (wxList *) NULL;
1012     m_pendingEvents = (wxList *) NULL;
1013 #if wxUSE_THREADS
1014 #  if !defined(__VISAGECPP__)
1015     m_eventsLocker = new wxCriticalSection;
1016 #  endif
1017 #endif
1018     // no client data (yet)
1019     m_clientData = NULL;
1020     m_clientDataType = wxClientData_None;
1021 }
1022
1023 wxEvtHandler::~wxEvtHandler()
1024 {
1025     // Takes itself out of the list of handlers
1026     if (m_previousHandler)
1027         m_previousHandler->m_nextHandler = m_nextHandler;
1028
1029     if (m_nextHandler)
1030         m_nextHandler->m_previousHandler = m_previousHandler;
1031
1032     if (m_dynamicEvents)
1033     {
1034         wxList::iterator it = m_dynamicEvents->begin(),
1035                          en = m_dynamicEvents->end();
1036         for (;it != en; ++it)
1037         {
1038 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1039             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1040 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1041             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1042 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1043
1044             if (entry->m_callbackUserData)
1045                 delete entry->m_callbackUserData;
1046             delete entry;
1047         }
1048         delete m_dynamicEvents;
1049     };
1050
1051     if (m_pendingEvents)
1052         m_pendingEvents->DeleteContents(true);
1053     delete m_pendingEvents;
1054
1055 #if wxUSE_THREADS
1056 #  if !defined(__VISAGECPP__)
1057     delete m_eventsLocker;
1058 #  endif
1059
1060     // Remove us from wxPendingEvents if necessary.
1061     if(wxPendingEventsLocker)
1062         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1063     if ( wxPendingEvents )
1064     {
1065         // Delete all occurences of this from the list of pending events
1066         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1067     }
1068     if(wxPendingEventsLocker)
1069         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1070 #endif
1071
1072     // we only delete object data, not untyped
1073     if ( m_clientDataType == wxClientData_Object )
1074         delete m_clientObject;
1075 }
1076
1077 #if wxUSE_THREADS
1078
1079 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1080 {
1081     // check that we are really in a child thread
1082     wxASSERT_MSG( !wxThread::IsMain(),
1083                   wxT("use ProcessEvent() in main thread") );
1084
1085     AddPendingEvent(event);
1086
1087     return true;
1088 }
1089
1090 void wxEvtHandler::ClearEventLocker()
1091 {
1092 #if !defined(__VISAGECPP__)
1093     delete m_eventsLocker;
1094     m_eventsLocker = NULL;
1095 #endif
1096 }
1097
1098 #endif // wxUSE_THREADS
1099
1100 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1101 {
1102     // 1) Add event to list of pending events of this event handler
1103
1104     wxEvent *eventCopy = event.Clone();
1105
1106     // we must be able to copy the events here so the event class must
1107     // implement Clone() properly instead of just providing a NULL stab for it
1108     wxCHECK_RET( eventCopy,
1109                  _T("events of this type aren't supposed to be posted") );
1110
1111     wxENTER_CRIT_SECT( Lock() );
1112
1113     if ( !m_pendingEvents )
1114       m_pendingEvents = new wxList;
1115
1116     m_pendingEvents->Append(eventCopy);
1117
1118     wxLEAVE_CRIT_SECT( Lock() );
1119
1120     // 2) Add this event handler to list of event handlers that
1121     //    have pending events.
1122
1123     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1124
1125     if ( !wxPendingEvents )
1126         wxPendingEvents = new wxList;
1127     wxPendingEvents->Append(this);
1128
1129     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1130
1131     // 3) Inform the system that new pending events are somewhere,
1132     //    and that these should be processed in idle time.
1133     wxWakeUpIdle();
1134 }
1135
1136 void wxEvtHandler::ProcessPendingEvents()
1137 {
1138     // this method is only called by wxApp if this handler does have pending
1139     // events
1140     wxCHECK_RET( m_pendingEvents,
1141                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1142
1143     wxENTER_CRIT_SECT( Lock() );
1144
1145     // we leave the loop once we have processed all events that were present at
1146     // the start of ProcessPendingEvents because otherwise we could get into
1147     // infinite loop if the pending event handler execution resulted in another
1148     // event being posted
1149     size_t n = m_pendingEvents->size();
1150     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1151           node;
1152           node = m_pendingEvents->GetFirst() )
1153     {
1154         wxEvent *event = (wxEvent *)node->GetData();
1155
1156         // It's importan we remove event from list before processing it.
1157         // Else a nested event loop, for example from a modal dialog, might
1158         // process the same event again.
1159         m_pendingEvents->Erase(node);
1160
1161         wxLEAVE_CRIT_SECT( Lock() );
1162
1163         ProcessEvent(*event);
1164         delete event;
1165
1166         wxENTER_CRIT_SECT( Lock() );
1167
1168         if ( --n == 0 )
1169             break;
1170     }
1171
1172     wxLEAVE_CRIT_SECT( Lock() );
1173 }
1174
1175 /*
1176  * Event table stuff
1177  */
1178 /* static */ bool
1179 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1180                                     wxEvtHandler *handler,
1181                                     wxEvent& event)
1182 {
1183     int tableId1 = entry.m_id,
1184         tableId2 = entry.m_lastId;
1185
1186     // match only if the event type is the same and the id is either -1 in
1187     // the event table (meaning "any") or the event id matches the id
1188     // specified in the event table either exactly or by falling into
1189     // range between first and last
1190     if ((tableId1 == wxID_ANY) ||
1191         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1192         (tableId2 != wxID_ANY &&
1193          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1194     {
1195         event.Skip(false);
1196         event.m_callbackUserData = entry.m_callbackUserData;
1197
1198 #if wxUSE_EXCEPTIONS
1199         if ( wxTheApp )
1200         {
1201             // call the handler via wxApp method which allows the user to catch
1202             // any exceptions which may be thrown by any handler in the program
1203             // in one place
1204             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1205         }
1206         else
1207 #endif // wxUSE_EXCEPTIONS
1208         {
1209             // no need for an extra virtual function call
1210             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1211         }
1212
1213         if (!event.GetSkipped())
1214             return true;
1215     }
1216
1217     return false;
1218 }
1219
1220 bool wxEvtHandler::TryParent(wxEvent& event)
1221 {
1222     if ( wxTheApp && (this != wxTheApp) )
1223     {
1224         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1225         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1226         // processed appropriately via SearchEventTable.
1227         if ( event.GetEventType() != wxEVT_IDLE )
1228         {
1229             if ( wxTheApp->ProcessEvent(event) )
1230                 return true;
1231         }
1232     }
1233
1234     return false;
1235 }
1236
1237 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1238 {
1239     // allow the application to hook into event processing
1240     if ( wxTheApp )
1241     {
1242         int rc = wxTheApp->FilterEvent(event);
1243         if ( rc != -1 )
1244         {
1245             wxASSERT_MSG( rc == 1 || rc == 0,
1246                           _T("unexpected wxApp::FilterEvent return value") );
1247
1248             return rc != 0;
1249         }
1250         //else: proceed normally
1251     }
1252
1253     // An event handler can be enabled or disabled
1254     if ( GetEvtHandlerEnabled() )
1255     {
1256         // if we have a validator, it has higher priority than our own event
1257         // table
1258         if ( TryValidator(event) )
1259             return true;
1260
1261         // Handle per-instance dynamic event tables first
1262         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1263             return true;
1264
1265         // Then static per-class event tables
1266         if ( GetEventHashTable().HandleEvent(event, this) )
1267             return true;
1268     }
1269
1270     // Try going down the event handler chain
1271     if ( GetNextHandler() )
1272     {
1273         if ( GetNextHandler()->ProcessEvent(event) )
1274             return true;
1275     }
1276
1277     // Finally propagate the event upwards the window chain and/or to the
1278     // application object as necessary
1279     return TryParent(event);
1280 }
1281
1282
1283 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1284 {
1285     const wxEventType eventType = event.GetEventType();
1286     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1287     {
1288         const wxEventTableEntry& entry = table.entries[i];
1289         if ( eventType == entry.m_eventType )
1290         {
1291             if ( ProcessEventIfMatches(entry, this, event) )
1292                 return true;
1293         }
1294     }
1295
1296     return false;
1297 }
1298
1299 void wxEvtHandler::Connect( int id, int lastId,
1300                             int eventType,
1301                             wxObjectEventFunction func,
1302                             wxObject *userData,
1303                             wxEvtHandler* eventSink )
1304 {
1305 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1306     wxEventTableEntry *entry = new wxEventTableEntry;
1307     entry->m_eventType = eventType;
1308     entry->m_id = id;
1309     entry->m_lastId = lastId;
1310     entry->m_fn = func;
1311     entry->m_callbackUserData = userData;
1312 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1313     wxDynamicEventTableEntry *entry =
1314         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1315 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1316
1317     if (!m_dynamicEvents)
1318         m_dynamicEvents = new wxList;
1319
1320     // Insert at the front of the list so most recent additions are found first
1321     m_dynamicEvents->Insert( (wxObject*) entry );
1322 }
1323
1324 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1325                   wxObjectEventFunction func,
1326                   wxObject *userData,
1327                   wxEvtHandler* eventSink )
1328 {
1329     if (!m_dynamicEvents)
1330         return false;
1331
1332     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1333     while (node)
1334     {
1335 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1336             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1337 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1338             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1339 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1340
1341         if ((entry->m_id == id) &&
1342             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1343             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1344             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1345             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1346             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1347         {
1348             if (entry->m_callbackUserData)
1349                 delete entry->m_callbackUserData;
1350             m_dynamicEvents->Erase( node );
1351             delete entry;
1352             return true;
1353         }
1354         node = node->GetNext();
1355     }
1356     return false;
1357 }
1358
1359 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1360 {
1361     wxCHECK_MSG( m_dynamicEvents, false,
1362                  wxT("caller should check that we have dynamic events") );
1363
1364     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1365     while (node)
1366     {
1367 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1368         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1369 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1370         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1371 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1372
1373         // get next node before (maybe) calling the event handler as it could
1374         // call Disconnect() invalidating the current node
1375         node = node->GetNext();
1376
1377         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1378         {
1379             wxEvtHandler *handler =
1380 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1381                                     entry->m_eventSink ? entry->m_eventSink
1382                                                        :
1383 #endif
1384                                                          this;
1385
1386             if ( ProcessEventIfMatches(*entry, handler, event) )
1387             {
1388                 return true;
1389             }
1390         }
1391     }
1392
1393     return false;
1394 }
1395
1396 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1397 {
1398     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1399                   wxT("can't have both object and void client data") );
1400
1401     if ( m_clientObject )
1402         delete m_clientObject;
1403
1404     m_clientObject = data;
1405     m_clientDataType = wxClientData_Object;
1406 }
1407
1408 wxClientData *wxEvtHandler::DoGetClientObject() const
1409 {
1410     // it's not an error to call GetClientObject() on a window which doesn't
1411     // have client data at all - NULL will be returned
1412     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1413                   wxT("this window doesn't have object client data") );
1414
1415     return m_clientObject;
1416 }
1417
1418 void wxEvtHandler::DoSetClientData( void *data )
1419 {
1420     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1421                   wxT("can't have both object and void client data") );
1422
1423     m_clientData = data;
1424     m_clientDataType = wxClientData_Void;
1425 }
1426
1427 void *wxEvtHandler::DoGetClientData() const
1428 {
1429     // it's not an error to call GetClientData() on a window which doesn't have
1430     // client data at all - NULL will be returned
1431     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1432                   wxT("this window doesn't have void client data") );
1433
1434     return m_clientData;
1435 }
1436
1437 #endif // wxUSE_BASE
1438
1439 #if wxUSE_GUI
1440
1441 // Find a window with the focus, that is also a descendant of the given window.
1442 // This is used to determine the window to initially send commands to.
1443 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1444 {
1445     // Process events starting with the window with the focus, if any.
1446     wxWindow* focusWin = wxWindow::FindFocus();
1447     wxWindow* win = focusWin;
1448
1449     // Check if this is a descendant of this frame.
1450     // If not, win will be set to NULL.
1451     while (win)
1452     {
1453         if (win == ancestor)
1454             break;
1455         else
1456             win = win->GetParent();
1457     }
1458     if (win == (wxWindow*) NULL)
1459         focusWin = (wxWindow*) NULL;
1460
1461     return focusWin;
1462 }
1463
1464 #endif // wxUSE_GUI