src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__)
  21 // Some older compilers (such as EMX) cannot handle
  22 // #pragma interface/implementation correctly, iff
  23 // #pragma implementation is used in _two_ translation
  24 // units (as created by e.g. event.cpp compiled for
  25 // libwx_base and event.cpp compiled for libwx_gui_core).
  26 // So we must not use those pragmas for those compilers in
  27 // such files.
  28     #pragma implementation "event.h"
  29 #endif
  30
  31 // For compilers that support precompilation, includes "wx.h".
  32 #include "wx/wxprec.h"
  33
  34 #ifdef __BORLANDC__
  35     #pragma hdrstop
  36 #endif
  37
  38 #ifndef WX_PRECOMP
  39     #include "wx/defs.h"
  40     #include "wx/app.h"
  41     #include "wx/list.h"
  42
  43     #if wxUSE_GUI
  44         #include "wx/control.h"
  45         #include "wx/utils.h"
  46         #include "wx/dc.h"
  47     #endif // wxUSE_GUI
  48 #endif
  49
  50 #include "wx/event.h"
  51 #include "wx/module.h"
  52
  53 #if wxUSE_GUI
  54     #include "wx/validate.h"
  55 #if wxUSE_STOPWATCH
  56     #include "wx/stopwatch.h"
  57 #endif
  58 #endif // wxUSE_GUI
  59
  60 // ----------------------------------------------------------------------------
  61 // wxWin macros
  62 // ----------------------------------------------------------------------------
  63
  64 #if wxUSE_BASE
  65     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  66     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  67 #endif // wxUSE_BASE
  68
  69 #if wxUSE_GUI
  70     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  96     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  97     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  98     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  99     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
 100     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
 101     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
 102     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
 103     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
 104     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
 105 #endif // wxUSE_GUI
 106
 107 #if wxUSE_BASE
 108
 109 const wxEventTable *wxEvtHandler::GetEventTable() const
 110     { return &wxEvtHandler::sm_eventTable; }
 111
 112 const wxEventTable wxEvtHandler::sm_eventTable =
 113     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 114
 115 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 116     { return wxEvtHandler::sm_eventHashTable; }
 117
 118 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 119
 120 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 121     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 122
 123
 124 #ifdef __WXDEBUG__
 125 // Clear up event hash table contents or we can get problems
 126 // when C++ is cleaning up the static object
 127 class wxEventTableEntryModule: public wxModule
 128 {
 129 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 130 public:
 131     wxEventTableEntryModule() {}
 132     bool OnInit() { return true; }
 133     void OnExit()
 134     {
 135         wxEventHashTable::ClearAll();
 136     }
 137 };
 138 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 139 #endif
 140
 141 // ----------------------------------------------------------------------------
 142 // global variables
 143 // ----------------------------------------------------------------------------
 144
 145 // To put pending event handlers
 146 wxList *wxPendingEvents = (wxList *)NULL;
 147
 148 #if wxUSE_THREADS
 149     // protects wxPendingEvents list
 150     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 151 #endif
 152
 153 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 154
 155 // common event types are defined here, other event types are defined by the
 156 // components which use them
 157
 158 const wxEventType wxEVT_FIRST = 10000;
 159 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 160
 161 DEFINE_EVENT_TYPE(wxEVT_NULL)
 162 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 163 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 164
 165 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 166
 167 #endif // wxUSE_BASE
 168
 169 #if wxUSE_GUI
 170
 171 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 172
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 183 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 184 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 185 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 186 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 187 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 188 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 189
 190 // Sockets and timers send events, too
 191 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 192
 193 // Mouse event types
 194 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 195 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 196 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 197 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 198 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 199 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 200 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 201 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 202 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 203 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 204 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 205 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 206 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 207 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 208 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 209 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 210
 211 // Non-client mouse events
 212 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 213 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 215 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 216 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 217 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 218 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 219 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 220 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 221 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 222 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 223 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 224
 225 // Character input event type
 226 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 227 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 228 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 229 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 230 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 231 #if wxUSE_HOTKEY
 232 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 233 #endif
 234
 235 // Set cursor event
 236 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 237
 238 // wxScrollbar and wxSlider event identifiers
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 247 DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL)
 248
 249 // Scroll events from wxWindow
 250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 254 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 255 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 256 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 257 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 258
 259 // System events
 260 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 261 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 262 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 263 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 264 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 265 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 266 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 267 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 268 DEFINE_EVENT_TYPE(wxEVT_POWER)
 269 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 270 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 271 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 272 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 273 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 274 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 275 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 276 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 277 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 278 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 279 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 280 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 281 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 282 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 283 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 284 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 285 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 286 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 287 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 288 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 289 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 290 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 291 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 292 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 293 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 294 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 295 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 296 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 297 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 298 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 299
 300 // Generic command events
 301 // Note: a click is a higher-level event than button down/up
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 304 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 305 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 306 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 309
 310 // Help events
 311 DEFINE_EVENT_TYPE(wxEVT_HELP)
 312 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 313
 314 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 315
 316 #endif // wxUSE_GUI
 317
 318 #if wxUSE_BASE
 319
 320 // ============================================================================
 321 // implementation
 322 // ============================================================================
 323
 324 // ----------------------------------------------------------------------------
 325 // event initialization
 326 // ----------------------------------------------------------------------------
 327
 328 int wxNewEventType()
 329 {
 330     // MT-FIXME
 331     static int s_lastUsedEventType = wxEVT_FIRST;
 332
 333     return s_lastUsedEventType++;
 334 }
 335
 336 // ----------------------------------------------------------------------------
 337 // wxEvent
 338 // ----------------------------------------------------------------------------
 339
 340 /*
 341  * General wxWidgets events, covering
 342  * all interesting things that might happen (button clicking, resizing,
 343  * setting text in widgets, etc.).
 344  *
 345  * For each completely new event type, derive a new event class.
 346  *
 347  */
 348
 349 wxEvent::wxEvent(int theId, wxEventType commandType )
 350 {
 351     m_eventType = commandType;
 352     m_eventObject = (wxObject *) NULL;
 353     m_timeStamp = 0;
 354     m_id = theId;
 355     m_skipped = false;
 356     m_callbackUserData = (wxObject *) NULL;
 357     m_isCommandEvent = false;
 358     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 359 }
 360
 361 wxEvent::wxEvent(const wxEvent &src)
 362     : wxObject()
 363     , m_eventObject(src.m_eventObject)
 364     , m_eventType(src.m_eventType)
 365     , m_timeStamp(src.m_timeStamp)
 366     , m_id(src.m_id)
 367     , m_callbackUserData(src.m_callbackUserData)
 368     , m_propagationLevel(src.m_propagationLevel)
 369     , m_skipped(src.m_skipped)
 370     , m_isCommandEvent(src.m_isCommandEvent)
 371 {
 372 }
 373
 374 #endif // wxUSE_BASE
 375
 376 #if wxUSE_GUI
 377
 378 /*
 379  * Command events
 380  *
 381  */
 382
 383 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 384               : wxEvent(theId, commandType)
 385 #if WXWIN_COMPATIBILITY_2_4
 386               , m_commandString(this)
 387 #endif
 388 {
 389     m_clientData = (char *) NULL;
 390     m_clientObject = (wxClientData *) NULL;
 391     m_extraLong = 0;
 392     m_commandInt = 0;
 393     m_isCommandEvent = true;
 394
 395     // the command events are propagated upwards by default
 396     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 397 }
 398
 399 wxString wxCommandEvent::GetString() const
 400 {
 401     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 402         return m_cmdString;
 403     else
 404     {
 405         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 406         if(txt)
 407             return txt->GetValue();
 408         else
 409             return m_cmdString;
 410     }
 411 }
 412
 413 /*
 414  * UI update events
 415  */
 416
 417 #if wxUSE_LONGLONG
 418 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 419 #endif
 420
 421 long wxUpdateUIEvent::sm_updateInterval = 0;
 422
 423 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 424
 425 // Can we update?
 426 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 427 {
 428     // Don't update if we've switched global updating off
 429     // and this window doesn't support updates.
 430     if (win &&
 431        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 432        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 433         return false;
 434
 435     if (sm_updateInterval == -1)
 436         return false;
 437
 438     if (sm_updateInterval == 0)
 439         return true;
 440
 441 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 442     wxLongLong now = wxGetLocalTimeMillis();
 443     if (now > (sm_lastUpdate + sm_updateInterval))
 444     {
 445         return true;
 446     }
 447
 448     return false;
 449 #else
 450     // If we don't have wxStopWatch or wxLongLong, we
 451     // should err on the safe side and update now anyway.
 452     return true;
 453 #endif
 454 }
 455
 456 // Reset the update time to provide a delay until the next
 457 // time we should update
 458 void wxUpdateUIEvent::ResetUpdateTime()
 459 {
 460 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 461     if (sm_updateInterval > 0)
 462     {
 463         wxLongLong now = wxGetLocalTimeMillis();
 464         if (now > (sm_lastUpdate + sm_updateInterval))
 465         {
 466             sm_lastUpdate = now;
 467         }
 468     }
 469 #endif
 470 }
 471
 472 /*
 473  * Idle events
 474  */
 475
 476 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 477
 478 // Can we send an idle event?
 479 bool wxIdleEvent::CanSend(wxWindow* win)
 480 {
 481     // Don't update if we've switched global updating off
 482     // and this window doesn't support updates.
 483     if (win &&
 484        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 485        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 486         return false;
 487
 488     return true;
 489 }
 490
 491 /*
 492  * Scroll events
 493  */
 494
 495 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 496                              int id,
 497                              int pos,
 498                              int orient)
 499     : wxCommandEvent(commandType, id)
 500 {
 501     m_extraLong = orient;
 502     m_commandInt = pos;
 503 }
 504
 505 /*
 506  * ScrollWin events
 507  */
 508
 509 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 510                                    int pos,
 511                                    int orient)
 512 {
 513     m_eventType = commandType;
 514     m_extraLong = orient;
 515     m_commandInt = pos;
 516 }
 517
 518 /*
 519  * Mouse events
 520  *
 521  */
 522
 523 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 524 {
 525     m_eventType = commandType;
 526     m_metaDown = false;
 527     m_altDown = false;
 528     m_controlDown = false;
 529     m_shiftDown = false;
 530     m_leftDown = false;
 531     m_rightDown = false;
 532     m_middleDown = false;
 533     m_x = 0;
 534     m_y = 0;
 535     m_wheelRotation = 0;
 536     m_wheelDelta = 0;
 537     m_linesPerAction = 0;
 538 }
 539
 540 void wxMouseEvent::Assign(const wxMouseEvent& event)
 541 {
 542     m_eventType = event.m_eventType;
 543
 544     m_x = event.m_x;
 545     m_y = event.m_y;
 546
 547     m_leftDown = event.m_leftDown;
 548     m_middleDown = event.m_middleDown;
 549     m_rightDown = event.m_rightDown;
 550
 551     m_controlDown = event.m_controlDown;
 552     m_shiftDown = event.m_shiftDown;
 553     m_altDown = event.m_altDown;
 554     m_metaDown = event.m_metaDown;
 555
 556     m_wheelRotation = event.m_wheelRotation;
 557     m_wheelDelta = event.m_wheelDelta;
 558     m_linesPerAction = event.m_linesPerAction;
 559 }
 560
 561 // return true if was a button dclick event
 562 bool wxMouseEvent::ButtonDClick(int but) const
 563 {
 564     switch (but)
 565     {
 566         default:
 567             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 568             // fall through
 569
 570         case wxMOUSE_BTN_ANY:
 571             return (LeftDClick() || MiddleDClick() || RightDClick());
 572
 573         case wxMOUSE_BTN_LEFT:
 574             return LeftDClick();
 575
 576         case wxMOUSE_BTN_MIDDLE:
 577             return MiddleDClick();
 578
 579         case wxMOUSE_BTN_RIGHT:
 580             return RightDClick();
 581     }
 582 }
 583
 584 // return true if was a button down event
 585 bool wxMouseEvent::ButtonDown(int but) const
 586 {
 587     switch (but)
 588     {
 589         default:
 590             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 591             // fall through
 592
 593         case wxMOUSE_BTN_ANY:
 594             return (LeftDown() || MiddleDown() || RightDown());
 595
 596         case wxMOUSE_BTN_LEFT:
 597             return LeftDown();
 598
 599         case wxMOUSE_BTN_MIDDLE:
 600             return MiddleDown();
 601
 602         case wxMOUSE_BTN_RIGHT:
 603             return RightDown();
 604     }
 605 }
 606
 607 // return true if was a button up event
 608 bool wxMouseEvent::ButtonUp(int but) const
 609 {
 610     switch (but)
 611     {
 612         default:
 613             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 614             // fall through
 615
 616         case wxMOUSE_BTN_ANY:
 617             return (LeftUp() || MiddleUp() || RightUp());
 618
 619         case wxMOUSE_BTN_LEFT:
 620             return LeftUp();
 621
 622         case wxMOUSE_BTN_MIDDLE:
 623             return MiddleUp();
 624
 625         case wxMOUSE_BTN_RIGHT:
 626             return RightUp();
 627     }
 628 }
 629
 630 // return true if the given button is currently changing state
 631 bool wxMouseEvent::Button(int but) const
 632 {
 633     switch (but)
 634     {
 635         default:
 636             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 637             // fall through
 638
 639         case wxMOUSE_BTN_ANY:
 640             return ButtonUp(wxMOUSE_BTN_ANY) ||
 641                     ButtonDown(wxMOUSE_BTN_ANY) ||
 642                         ButtonDClick(wxMOUSE_BTN_ANY);
 643
 644         case wxMOUSE_BTN_LEFT:
 645             return LeftDown() || LeftUp() || LeftDClick();
 646
 647         case wxMOUSE_BTN_MIDDLE:
 648             return MiddleDown() || MiddleUp() || MiddleDClick();
 649
 650         case wxMOUSE_BTN_RIGHT:
 651             return RightDown() || RightUp() || RightDClick();
 652     }
 653 }
 654
 655 bool wxMouseEvent::ButtonIsDown(int but) const
 656 {
 657     switch (but)
 658     {
 659         default:
 660             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 661             // fall through
 662
 663         case wxMOUSE_BTN_ANY:
 664             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 665
 666         case wxMOUSE_BTN_LEFT:
 667             return LeftIsDown();
 668
 669         case wxMOUSE_BTN_MIDDLE:
 670             return MiddleIsDown();
 671
 672         case wxMOUSE_BTN_RIGHT:
 673             return RightIsDown();
 674     }
 675 }
 676
 677 int wxMouseEvent::GetButton() const
 678 {
 679     for ( int i = 1; i <= 3; i++ )
 680     {
 681         if ( Button(i) )
 682         {
 683             return i;
 684         }
 685     }
 686
 687     return wxMOUSE_BTN_NONE;
 688 }
 689
 690 // Find the logical position of the event given the DC
 691 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 692 {
 693     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 694     return pt;
 695 }
 696
 697
 698 /*
 699  * Keyboard event
 700  *
 701  */
 702
 703 wxKeyEvent::wxKeyEvent(wxEventType type)
 704 {
 705     m_eventType = type;
 706     m_shiftDown = false;
 707     m_controlDown = false;
 708     m_metaDown = false;
 709     m_altDown = false;
 710     m_keyCode = 0;
 711     m_scanCode = 0;
 712 #if wxUSE_UNICODE
 713     m_uniChar = 0;
 714 #endif
 715 }
 716
 717 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 718     : wxEvent(evt)
 719 {
 720     m_x = evt.m_x;
 721     m_y = evt.m_y;
 722
 723     m_keyCode = evt.m_keyCode;
 724
 725     m_controlDown = evt.m_controlDown;
 726     m_shiftDown = evt.m_shiftDown;
 727     m_altDown = evt.m_altDown;
 728     m_metaDown = evt.m_metaDown;
 729     m_scanCode = evt.m_scanCode;
 730     m_rawCode = evt.m_rawCode;
 731     m_rawFlags = evt.m_rawFlags;
 732
 733 #if wxUSE_UNICODE
 734     m_uniChar = evt.m_uniChar;
 735 #endif
 736 }
 737
 738 long wxKeyEvent::KeyCode() const
 739 {
 740     return m_keyCode;
 741 }
 742
 743 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 744 {
 745     SetEventType(wxEVT_CREATE);
 746     SetEventObject(win);
 747 }
 748
 749 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 750 {
 751     SetEventType(wxEVT_DESTROY);
 752     SetEventObject(win);
 753 }
 754
 755 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 756                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 757 {
 758     SetEventObject(win);
 759 }
 760
 761 #endif // wxUSE_GUI
 762
 763
 764 #if wxUSE_BASE
 765
 766 // ----------------------------------------------------------------------------
 767 // wxEventHashTable
 768 // ----------------------------------------------------------------------------
 769
 770 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 771
 772 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 773
 774 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 775                 : m_table(table),
 776                   m_rebuildHash(true)
 777 {
 778     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 779
 780     m_next = sm_first;
 781     if (m_next)
 782         m_next->m_previous = this;
 783     sm_first = this;
 784 }
 785
 786 wxEventHashTable::~wxEventHashTable()
 787 {
 788     if (m_next)
 789         m_next->m_previous = m_previous;
 790     if (m_previous)
 791         m_previous->m_next = m_next;
 792     if (sm_first == this)
 793         sm_first = m_next;
 794
 795     Clear();
 796 }
 797
 798 void wxEventHashTable::Clear()
 799 {
 800     size_t i;
 801     for(i = 0; i < m_size; i++)
 802     {
 803         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 804         if (eTTnode)
 805         {
 806             delete eTTnode;
 807         }
 808     }
 809
 810     // Necessary in order to not invoke the
 811     // overloaded delete operator when statics are cleaned up
 812     if (m_eventTypeTable)
 813         delete[] m_eventTypeTable;
 814
 815     m_eventTypeTable = NULL;
 816     m_size = 0;
 817 }
 818
 819 // Clear all tables
 820 void wxEventHashTable::ClearAll()
 821 {
 822     wxEventHashTable* table = sm_first;
 823     while (table)
 824     {
 825         table->Clear();
 826         table = table->m_next;
 827     }
 828 }
 829
 830 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 831 {
 832     if (m_rebuildHash)
 833     {
 834         InitHashTable();
 835         m_rebuildHash = false;
 836     }
 837
 838     if (!m_eventTypeTable)
 839         return false;
 840
 841     // Find all entries for the given event type.
 842     wxEventType eventType = event.GetEventType();
 843     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 844     if (eTTnode && eTTnode->eventType == eventType)
 845     {
 846         // Now start the search for an event handler
 847         // that can handle an event with the given ID.
 848         const wxEventTableEntryPointerArray&
 849             eventEntryTable = eTTnode->eventEntryTable;
 850
 851         const size_t count = eventEntryTable.GetCount();
 852         for (size_t n = 0; n < count; n++)
 853         {
 854             if ( wxEvtHandler::
 855                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 856             {
 857                 return true;
 858             }
 859         }
 860     }
 861
 862     return false;
 863 }
 864
 865 void wxEventHashTable::InitHashTable()
 866 {
 867     // Loop over the event tables and all its base tables.
 868     const wxEventTable *table = &m_table;
 869     while (table)
 870     {
 871         // Retrieve all valid event handler entries
 872         const wxEventTableEntry *entry = table->entries;
 873         while (entry->m_fn != 0)
 874         {
 875             // Add the event entry in the Hash.
 876             AddEntry(*entry);
 877
 878             entry++;
 879         }
 880
 881         table = table->baseTable;
 882     }
 883
 884     // Lets free some memory.
 885     size_t i;
 886     for(i = 0; i < m_size; i++)
 887     {
 888         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 889         if (eTTnode)
 890         {
 891             eTTnode->eventEntryTable.Shrink();
 892         }
 893     }
 894 }
 895
 896 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 897 {
 898     // This might happen 'accidentally' as the app is exiting
 899     if (!m_eventTypeTable)
 900         return;
 901
 902     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 903     EventTypeTablePointer  eTTnode = *peTTnode;
 904
 905     if (eTTnode)
 906     {
 907         if (eTTnode->eventType != entry.m_eventType)
 908         {
 909             // Resize the table!
 910             GrowEventTypeTable();
 911             // Try again to add it.
 912             AddEntry(entry);
 913             return;
 914         }
 915     }
 916     else
 917     {
 918         eTTnode = new EventTypeTable;
 919         eTTnode->eventType = entry.m_eventType;
 920         *peTTnode = eTTnode;
 921     }
 922
 923     // Fill all hash entries between entry.m_id and entry.m_lastId...
 924     eTTnode->eventEntryTable.Add(&entry);
 925 }
 926
 927 void wxEventHashTable::AllocEventTypeTable(size_t size)
 928 {
 929     m_eventTypeTable = new EventTypeTablePointer[size];
 930     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 931     m_size = size;
 932 }
 933
 934 void wxEventHashTable::GrowEventTypeTable()
 935 {
 936     size_t oldSize = m_size;
 937     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 938
 939     // TODO: Search the most optimal grow sequence
 940     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 941
 942     for ( size_t i = 0; i < oldSize; /* */ )
 943     {
 944         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 945         if (eTToldNode)
 946         {
 947             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 948             EventTypeTablePointer  eTTnode = *peTTnode;
 949
 950             // Check for collision, we don't want any.
 951             if (eTTnode)
 952             {
 953                 GrowEventTypeTable();
 954                 continue; // Don't increment the counter,
 955                           // as we still need to add this element.
 956             }
 957             else
 958             {
 959                 // Get the old value and put it in the new table.
 960                 *peTTnode = oldEventTypeTable[i];
 961             }
 962         }
 963
 964         i++;
 965     }
 966
 967     delete[] oldEventTypeTable;
 968 }
 969
 970
 971 // ----------------------------------------------------------------------------
 972 // wxEvtHandler
 973 // ----------------------------------------------------------------------------
 974
 975 /*
 976  * Event handler
 977  */
 978
 979 wxEvtHandler::wxEvtHandler()
 980 {
 981     m_nextHandler = (wxEvtHandler *) NULL;
 982     m_previousHandler = (wxEvtHandler *) NULL;
 983     m_enabled = true;
 984     m_dynamicEvents = (wxList *) NULL;
 985     m_pendingEvents = (wxList *) NULL;
 986 #if wxUSE_THREADS
 987 #  if !defined(__VISAGECPP__)
 988     m_eventsLocker = new wxCriticalSection;
 989 #  endif
 990 #endif
 991     // no client data (yet)
 992     m_clientData = NULL;
 993     m_clientDataType = wxClientData_None;
 994 }
 995
 996 wxEvtHandler::~wxEvtHandler()
 997 {
 998     // Takes itself out of the list of handlers
 999     if (m_previousHandler)
1000         m_previousHandler->m_nextHandler = m_nextHandler;
1001
1002     if (m_nextHandler)
1003         m_nextHandler->m_previousHandler = m_previousHandler;
1004
1005     if (m_dynamicEvents)
1006     {
1007         wxList::iterator it = m_dynamicEvents->begin(),
1008                          en = m_dynamicEvents->end();
1009         for (;it != en; ++it)
1010         {
1011 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1012             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1013 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1014             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1015 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1016
1017             if (entry->m_callbackUserData)
1018                 delete entry->m_callbackUserData;
1019             delete entry;
1020         }
1021         delete m_dynamicEvents;
1022     };
1023
1024     delete m_pendingEvents;
1025
1026 #if wxUSE_THREADS
1027 #  if !defined(__VISAGECPP__)
1028     delete m_eventsLocker;
1029 #  endif
1030
1031     // Remove us from wxPendingEvents if necessary.
1032     if(wxPendingEventsLocker)
1033         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1034     if ( wxPendingEvents ) {
1035         wxPendingEvents->DeleteObject(this);
1036     }
1037     if(wxPendingEventsLocker)
1038         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1039 #endif
1040
1041     // we only delete object data, not untyped
1042     if ( m_clientDataType == wxClientData_Object )
1043         delete m_clientObject;
1044 }
1045
1046 #if wxUSE_THREADS
1047
1048 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1049 {
1050     // check that we are really in a child thread
1051     wxASSERT_MSG( !wxThread::IsMain(),
1052                   wxT("use ProcessEvent() in main thread") );
1053
1054     AddPendingEvent(event);
1055
1056     return true;
1057 }
1058
1059 void wxEvtHandler::ClearEventLocker()
1060 {
1061 #if !defined(__VISAGECPP__)
1062     delete m_eventsLocker;
1063     m_eventsLocker = NULL;
1064 #endif
1065 };
1066
1067 #endif // wxUSE_THREADS
1068
1069 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1070 {
1071     // 1) Add event to list of pending events of this event handler
1072
1073     wxEvent *eventCopy = event.Clone();
1074
1075     // we must be able to copy the events here so the event class must
1076     // implement Clone() properly instead of just providing a NULL stab for it
1077     wxCHECK_RET( eventCopy,
1078                  _T("events of this type aren't supposed to be posted") );
1079
1080 #if defined(__VISAGECPP__)
1081     wxENTER_CRIT_SECT( m_eventsLocker);
1082 #else
1083     wxENTER_CRIT_SECT( *m_eventsLocker);
1084 #endif
1085
1086     if ( !m_pendingEvents )
1087       m_pendingEvents = new wxList;
1088
1089     m_pendingEvents->Append(eventCopy);
1090
1091 #if defined(__VISAGECPP__)
1092     wxLEAVE_CRIT_SECT( m_eventsLocker);
1093 #else
1094     wxLEAVE_CRIT_SECT( *m_eventsLocker);
1095 #endif
1096
1097     // 2) Add this event handler to list of event handlers that
1098     //    have pending events.
1099
1100     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1101
1102     if ( !wxPendingEvents )
1103         wxPendingEvents = new wxList;
1104     wxPendingEvents->Append(this);
1105
1106     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1107
1108     // 3) Inform the system that new pending events are somwehere,
1109     //    and that these should be processed in idle time.
1110     wxWakeUpIdle();
1111 }
1112
1113 void wxEvtHandler::ProcessPendingEvents()
1114 {
1115     // this method is only called by wxApp if this handler does have pending
1116     // events
1117     wxCHECK_RET( m_pendingEvents,
1118                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1119
1120 #if defined(__VISAGECPP__)
1121     wxENTER_CRIT_SECT( m_eventsLocker);
1122 #else
1123     wxENTER_CRIT_SECT( *m_eventsLocker);
1124 #endif
1125
1126     // remember last event to process during this iteration
1127     wxList::compatibility_iterator lastPendingNode = m_pendingEvents->GetLast();
1128
1129     wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1130     while ( node )
1131     {
1132         wxEvent *event = (wxEvent *)node->GetData();
1133         m_pendingEvents->Erase(node);
1134
1135         // In ProcessEvent, new events might get added and
1136         // we can safely leave the crtical section here.
1137 #if defined(__VISAGECPP__)
1138         wxLEAVE_CRIT_SECT( m_eventsLocker);
1139 #else
1140         wxLEAVE_CRIT_SECT( *m_eventsLocker);
1141 #endif
1142         ProcessEvent(*event);
1143         delete event;
1144 #if defined(__VISAGECPP__)
1145         wxENTER_CRIT_SECT( m_eventsLocker);
1146 #else
1147         wxENTER_CRIT_SECT( *m_eventsLocker);
1148 #endif
1149
1150         // leave the loop once we have processed all events that were present
1151         // at the start of ProcessPendingEvents because otherwise we could get
1152         // into infinite loop if the pending event handler execution resulted
1153         // in another event being posted
1154         if ( node == lastPendingNode )
1155             break;
1156
1157         node = m_pendingEvents->GetFirst();
1158     }
1159
1160 #if defined(__VISAGECPP__)
1161     wxLEAVE_CRIT_SECT( m_eventsLocker);
1162 #else
1163     wxLEAVE_CRIT_SECT( *m_eventsLocker);
1164 #endif
1165 }
1166
1167 /*
1168  * Event table stuff
1169  */
1170 /* static */ bool
1171 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1172                                     wxEvtHandler *handler,
1173                                     wxEvent& event)
1174 {
1175     int tableId1 = entry.m_id,
1176         tableId2 = entry.m_lastId;
1177
1178     // match only if the event type is the same and the id is either -1 in
1179     // the event table (meaning "any") or the event id matches the id
1180     // specified in the event table either exactly or by falling into
1181     // range between first and last
1182     if ((tableId1 == wxID_ANY) ||
1183         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1184         (tableId2 != wxID_ANY &&
1185          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1186     {
1187         event.Skip(false);
1188         event.m_callbackUserData = entry.m_callbackUserData;
1189
1190 #if wxUSE_EXCEPTIONS
1191         if ( wxTheApp )
1192         {
1193             // call the handler via wxApp method which allows the user to catch
1194             // any exceptions which may be thrown by any handler in the program
1195             // in one place
1196             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1197         }
1198         else
1199 #endif // wxUSE_EXCEPTIONS
1200         {
1201             // no need for an extra virtual function call
1202             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1203         }
1204
1205         if (!event.GetSkipped())
1206             return true;
1207     }
1208
1209     return false;
1210 }
1211
1212 bool wxEvtHandler::TryParent(wxEvent& event)
1213 {
1214     if ( wxTheApp && (this != wxTheApp) )
1215     {
1216         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1217         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1218         // processed appropriately via SearchEventTable.
1219         if ( event.GetEventType() != wxEVT_IDLE )
1220         {
1221             if ( wxTheApp->ProcessEvent(event) )
1222                 return true;
1223         }
1224     }
1225
1226     return false;
1227 }
1228
1229 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1230 {
1231     // allow the application to hook into event processing
1232     if ( wxTheApp )
1233     {
1234         int rc = wxTheApp->FilterEvent(event);
1235         if ( rc != -1 )
1236         {
1237             wxASSERT_MSG( rc == 1 || rc == 0,
1238                           _T("unexpected wxApp::FilterEvent return value") );
1239
1240             return rc != 0;
1241         }
1242         //else: proceed normally
1243     }
1244
1245     // An event handler can be enabled or disabled
1246     if ( GetEvtHandlerEnabled() )
1247     {
1248         // if we have a validator, it has higher priority than our own event
1249         // table
1250         if ( TryValidator(event) )
1251             return true;
1252
1253         // Handle per-instance dynamic event tables first
1254         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1255             return true;
1256
1257         // Then static per-class event tables
1258         if ( GetEventHashTable().HandleEvent(event, this) )
1259             return true;
1260     }
1261
1262     // Try going down the event handler chain
1263     if ( GetNextHandler() )
1264     {
1265         if ( GetNextHandler()->ProcessEvent(event) )
1266             return true;
1267     }
1268
1269     // Finally propagate the event upwards the window chain and/or to the
1270     // application object as necessary
1271     return TryParent(event);
1272 }
1273
1274
1275 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1276 {
1277     const wxEventType eventType = event.GetEventType();
1278     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1279     {
1280         const wxEventTableEntry& entry = table.entries[i];
1281         if ( eventType == entry.m_eventType )
1282         {
1283             if ( ProcessEventIfMatches(entry, this, event) )
1284                 return true;
1285         }
1286     }
1287
1288     return false;
1289 }
1290
1291 void wxEvtHandler::Connect( int id, int lastId,
1292                             int eventType,
1293                             wxObjectEventFunction func,
1294                             wxObject *userData,
1295                             wxEvtHandler* eventSink )
1296 {
1297 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1298     wxEventTableEntry *entry = new wxEventTableEntry;
1299     entry->m_eventType = eventType;
1300     entry->m_id = id;
1301     entry->m_lastId = lastId;
1302     entry->m_fn = func;
1303     entry->m_callbackUserData = userData;
1304 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1305     wxDynamicEventTableEntry *entry =
1306         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1307 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1308
1309     if (!m_dynamicEvents)
1310         m_dynamicEvents = new wxList;
1311
1312     // Insert at the front of the list so most recent additions are found first
1313     m_dynamicEvents->Insert( (wxObject*) entry );
1314 }
1315
1316 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1317                   wxObjectEventFunction func,
1318                   wxObject *userData,
1319                   wxEvtHandler* eventSink )
1320 {
1321     if (!m_dynamicEvents)
1322         return false;
1323
1324     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1325     while (node)
1326     {
1327 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1328             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1329 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1330             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1331 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1332
1333         if ((entry->m_id == id) &&
1334             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1335             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1336             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1337             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1338             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1339         {
1340             if (entry->m_callbackUserData)
1341                 delete entry->m_callbackUserData;
1342             m_dynamicEvents->Erase( node );
1343             delete entry;
1344             return true;
1345         }
1346         node = node->GetNext();
1347     }
1348     return false;
1349 }
1350
1351 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1352 {
1353     wxCHECK_MSG( m_dynamicEvents, false,
1354                  wxT("caller should check that we have dynamic events") );
1355
1356     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1357     while (node)
1358     {
1359 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1360         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1361 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1362         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1363 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1364
1365         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1366         {
1367             wxEvtHandler *handler =
1368 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1369                                     entry->m_eventSink ? entry->m_eventSink
1370                                                        :
1371 #endif
1372                                                          this;
1373
1374             if ( ProcessEventIfMatches(*entry, handler, event) )
1375             {
1376                 return true;
1377             }
1378         }
1379
1380         node = node->GetNext();
1381     }
1382
1383     return false;
1384 };
1385
1386 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1387 {
1388     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1389                   wxT("can't have both object and void client data") );
1390
1391     if ( m_clientObject )
1392         delete m_clientObject;
1393
1394     m_clientObject = data;
1395     m_clientDataType = wxClientData_Object;
1396 }
1397
1398 wxClientData *wxEvtHandler::DoGetClientObject() const
1399 {
1400     // it's not an error to call GetClientObject() on a window which doesn't
1401     // have client data at all - NULL will be returned
1402     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1403                   wxT("this window doesn't have object client data") );
1404
1405     return m_clientObject;
1406 }
1407
1408 void wxEvtHandler::DoSetClientData( void *data )
1409 {
1410     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1411                   wxT("can't have both object and void client data") );
1412
1413     m_clientData = data;
1414     m_clientDataType = wxClientData_Void;
1415 }
1416
1417 void *wxEvtHandler::DoGetClientData() const
1418 {
1419     // it's not an error to call GetClientData() on a window which doesn't have
1420     // client data at all - NULL will be returned
1421     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1422                   wxT("this window doesn't have void client data") );
1423
1424     return m_clientData;
1425 }
1426
1427 #endif // wxUSE_BASE
1428
1429 #if wxUSE_GUI
1430
1431 // Find a window with the focus, that is also a descendant of the given window.
1432 // This is used to determine the window to initially send commands to.
1433 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1434 {
1435     // Process events starting with the window with the focus, if any.
1436     wxWindow* focusWin = wxWindow::FindFocus();
1437     wxWindow* win = focusWin;
1438
1439     // Check if this is a descendant of this frame.
1440     // If not, win will be set to NULL.
1441     while (win)
1442     {
1443         if (win == ancestor)
1444             break;
1445         else
1446             win = win->GetParent();
1447     }
1448     if (win == (wxWindow*) NULL)
1449         focusWin = (wxWindow*) NULL;
1450
1451     return focusWin;
1452 }
1453
1454 #endif // wxUSE_GUI