src/common/event.cpp

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