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/control.h"
  38         #include "wx/dc.h"
  39         #include "wx/textctrl.h"
  40         #include "wx/validate.h"
  41     #endif // wxUSE_GUI
  42 #endif
  43
  44 // ----------------------------------------------------------------------------
  45 // wxWin macros
  46 // ----------------------------------------------------------------------------
  47
  48 #if wxUSE_BASE
  49     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  50     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  51     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  52 #endif // wxUSE_BASE
  53
  54 #if wxUSE_GUI
  55     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  56     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  57     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  58     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  59     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  91 #endif // wxUSE_GUI
  92
  93 #if wxUSE_BASE
  94
  95 const wxEventTable *wxEvtHandler::GetEventTable() const
  96     { return &wxEvtHandler::sm_eventTable; }
  97
  98 const wxEventTable wxEvtHandler::sm_eventTable =
  99     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 100
 101 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 102     { return wxEvtHandler::sm_eventHashTable; }
 103
 104 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 105
 106 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 107     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 108
 109
 110 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 111 // leaked, so we need to manually clean up all event tables before checking for
 112 // the memory leaks when using it, however this breaks re-initializing the
 113 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 114 // event tables won't be rebuilt the next time, so disable this by default
 115 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 116
 117 class wxEventTableEntryModule: public wxModule
 118 {
 119 public:
 120     wxEventTableEntryModule() { }
 121     virtual bool OnInit() { return true; }
 122     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 123
 124     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 125 };
 126
 127 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 128
 129 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 130
 131 // ----------------------------------------------------------------------------
 132 // global variables
 133 // ----------------------------------------------------------------------------
 134
 135 // To put pending event handlers
 136 wxList *wxPendingEvents = (wxList *)NULL;
 137
 138 #if wxUSE_THREADS
 139     // protects wxPendingEvents list
 140     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 141 #endif
 142
 143 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 144
 145 // common event types are defined here, other event types are defined by the
 146 // components which use them
 147
 148 const wxEventType wxEVT_FIRST = 10000;
 149 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 150
 151 DEFINE_EVENT_TYPE(wxEVT_NULL)
 152 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 153 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 154 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 155
 156 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 157
 158 #endif // wxUSE_BASE
 159
 160 #if wxUSE_GUI
 161
 162 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 163
 164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
 181
 182 // Mouse event types
 183 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 184 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 185 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 186 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 187 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 188 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 189 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 190 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 191 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 192 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 193 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 194 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 195 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 196 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 197 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 198 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 199
 200 // Non-client mouse events
 201 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 202 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 203 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 204 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 205 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 206 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 207 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 208 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 209 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 210 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 211 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 213
 214 // Character input event type
 215 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 216 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 217 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 218 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 219 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 220 #if wxUSE_HOTKEY
 221 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 222 #endif
 223
 224 // Set cursor event
 225 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 226
 227 // wxScrollbar and wxSlider event identifiers
 228 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 229 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 230 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 231 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 232 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 233 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 234 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 235 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 237
 238 // Scroll events from wxWindow
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 247
 248 // System events
 249 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 250 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 251 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 252 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 253 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 254 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 255 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 256 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 257 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 258 DEFINE_EVENT_TYPE(wxEVT_POWER)
 259 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 260 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 261 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 262 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 263 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 264 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 265 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 266 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
 267 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 268 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 269 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 270 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 271 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 272 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 273 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 274 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 275 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 276 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 277 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 278 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 279 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 280 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 281 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 282 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 283 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 284 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 285 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 286 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 287 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 288 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 289 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 290
 291 // Clipboard events
 292 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 293 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 294 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 295
 296 // Generic command events
 297 // Note: a click is a higher-level event than button down/up
 298 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 299 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 304 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 305
 306 // Help events
 307 DEFINE_EVENT_TYPE(wxEVT_HELP)
 308 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 309
 310 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 311
 312 #endif // wxUSE_GUI
 313
 314 #if wxUSE_BASE
 315
 316 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 317
 318 // ============================================================================
 319 // implementation
 320 // ============================================================================
 321
 322 // ----------------------------------------------------------------------------
 323 // event initialization
 324 // ----------------------------------------------------------------------------
 325
 326 int wxNewEventType()
 327 {
 328     // MT-FIXME
 329     static int s_lastUsedEventType = wxEVT_FIRST;
 330
 331     return s_lastUsedEventType++;
 332 }
 333
 334 // ----------------------------------------------------------------------------
 335 // wxEvent
 336 // ----------------------------------------------------------------------------
 337
 338 /*
 339  * General wxWidgets events, covering
 340  * all interesting things that might happen (button clicking, resizing,
 341  * setting text in widgets, etc.).
 342  *
 343  * For each completely new event type, derive a new event class.
 344  *
 345  */
 346
 347 wxEvent::wxEvent(int theId, wxEventType commandType )
 348 {
 349     m_eventType = commandType;
 350     m_eventObject = (wxObject *) NULL;
 351     m_timeStamp = 0;
 352     m_id = theId;
 353     m_skipped = false;
 354     m_callbackUserData = (wxObject *) NULL;
 355     m_isCommandEvent = false;
 356     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 357 }
 358
 359 wxEvent::wxEvent(const wxEvent &src)
 360     : wxObject(src)
 361     , m_eventObject(src.m_eventObject)
 362     , m_eventType(src.m_eventType)
 363     , m_timeStamp(src.m_timeStamp)
 364     , m_id(src.m_id)
 365     , m_callbackUserData(src.m_callbackUserData)
 366     , m_propagationLevel(src.m_propagationLevel)
 367     , m_skipped(src.m_skipped)
 368     , m_isCommandEvent(src.m_isCommandEvent)
 369 {
 370 }
 371
 372 #endif // wxUSE_BASE
 373
 374 #if wxUSE_GUI
 375
 376 /*
 377  * Command events
 378  *
 379  */
 380
 381 #ifdef __VISUALC__
 382     // 'this' : used in base member initializer list (for m_commandString)
 383     #pragma warning(disable:4355)
 384 #endif
 385
 386 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 387               : wxEvent(theId, commandType)
 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 #ifdef __VISUALC__
 400     #pragma warning(default:4355)
 401 #endif
 402
 403 wxString wxCommandEvent::GetString() const
 404 {
 405     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 406         return m_cmdString;
 407     else
 408     {
 409 #if wxUSE_TEXTCTRL
 410         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 411         if(txt)
 412             return txt->GetValue();
 413         else
 414 #endif // wxUSE_TEXTCTRL
 415             return m_cmdString;
 416     }
 417 }
 418
 419 /*
 420  * UI update events
 421  */
 422
 423 #if wxUSE_LONGLONG
 424 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 425 #endif
 426
 427 long wxUpdateUIEvent::sm_updateInterval = 0;
 428
 429 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 430
 431 // Can we update?
 432 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 433 {
 434     // Don't update if we've switched global updating off
 435     // and this window doesn't support updates.
 436     if (win &&
 437        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 438        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 439         return false;
 440
 441     if (sm_updateInterval == -1)
 442         return false;
 443
 444     if (sm_updateInterval == 0)
 445         return true;
 446
 447 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 448     wxLongLong now = wxGetLocalTimeMillis();
 449     if (now > (sm_lastUpdate + sm_updateInterval))
 450     {
 451         return true;
 452     }
 453
 454     return false;
 455 #else
 456     // If we don't have wxStopWatch or wxLongLong, we
 457     // should err on the safe side and update now anyway.
 458     return true;
 459 #endif
 460 }
 461
 462 // Reset the update time to provide a delay until the next
 463 // time we should update
 464 void wxUpdateUIEvent::ResetUpdateTime()
 465 {
 466 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 467     if (sm_updateInterval > 0)
 468     {
 469         wxLongLong now = wxGetLocalTimeMillis();
 470         if (now > (sm_lastUpdate + sm_updateInterval))
 471         {
 472             sm_lastUpdate = now;
 473         }
 474     }
 475 #endif
 476 }
 477
 478 /*
 479  * Scroll events
 480  */
 481
 482 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 483                              int id,
 484                              int pos,
 485                              int orient)
 486     : wxCommandEvent(commandType, id)
 487 {
 488     m_extraLong = orient;
 489     m_commandInt = pos;
 490 }
 491
 492 /*
 493  * ScrollWin events
 494  */
 495
 496 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 497                                    int pos,
 498                                    int orient)
 499 {
 500     m_eventType = commandType;
 501     m_extraLong = orient;
 502     m_commandInt = pos;
 503 }
 504
 505 /*
 506  * Mouse events
 507  *
 508  */
 509
 510 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 511 {
 512     m_eventType = commandType;
 513     m_metaDown = false;
 514     m_altDown = false;
 515     m_controlDown = false;
 516     m_shiftDown = false;
 517     m_leftDown = false;
 518     m_rightDown = false;
 519     m_middleDown = false;
 520     m_x = 0;
 521     m_y = 0;
 522     m_wheelRotation = 0;
 523     m_wheelDelta = 0;
 524     m_linesPerAction = 0;
 525     m_wheelAxis = 0;
 526 }
 527
 528 void wxMouseEvent::Assign(const wxMouseEvent& event)
 529 {
 530     m_eventType = event.m_eventType;
 531
 532     m_x = event.m_x;
 533     m_y = event.m_y;
 534
 535     m_leftDown = event.m_leftDown;
 536     m_middleDown = event.m_middleDown;
 537     m_rightDown = event.m_rightDown;
 538
 539     m_controlDown = event.m_controlDown;
 540     m_shiftDown = event.m_shiftDown;
 541     m_altDown = event.m_altDown;
 542     m_metaDown = event.m_metaDown;
 543
 544     m_wheelRotation = event.m_wheelRotation;
 545     m_wheelDelta = event.m_wheelDelta;
 546     m_linesPerAction = event.m_linesPerAction;
 547     m_wheelAxis = event.m_wheelAxis;
 548 }
 549
 550 // return true if was a button dclick event
 551 bool wxMouseEvent::ButtonDClick(int but) const
 552 {
 553     switch (but)
 554     {
 555         default:
 556             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 557             // fall through
 558
 559         case wxMOUSE_BTN_ANY:
 560             return (LeftDClick() || MiddleDClick() || RightDClick());
 561
 562         case wxMOUSE_BTN_LEFT:
 563             return LeftDClick();
 564
 565         case wxMOUSE_BTN_MIDDLE:
 566             return MiddleDClick();
 567
 568         case wxMOUSE_BTN_RIGHT:
 569             return RightDClick();
 570     }
 571 }
 572
 573 // return true if was a button down event
 574 bool wxMouseEvent::ButtonDown(int but) const
 575 {
 576     switch (but)
 577     {
 578         default:
 579             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 580             // fall through
 581
 582         case wxMOUSE_BTN_ANY:
 583             return (LeftDown() || MiddleDown() || RightDown());
 584
 585         case wxMOUSE_BTN_LEFT:
 586             return LeftDown();
 587
 588         case wxMOUSE_BTN_MIDDLE:
 589             return MiddleDown();
 590
 591         case wxMOUSE_BTN_RIGHT:
 592             return RightDown();
 593     }
 594 }
 595
 596 // return true if was a button up event
 597 bool wxMouseEvent::ButtonUp(int but) const
 598 {
 599     switch (but)
 600     {
 601         default:
 602             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 603             // fall through
 604
 605         case wxMOUSE_BTN_ANY:
 606             return (LeftUp() || MiddleUp() || RightUp());
 607
 608         case wxMOUSE_BTN_LEFT:
 609             return LeftUp();
 610
 611         case wxMOUSE_BTN_MIDDLE:
 612             return MiddleUp();
 613
 614         case wxMOUSE_BTN_RIGHT:
 615             return RightUp();
 616     }
 617 }
 618
 619 // return true if the given button is currently changing state
 620 bool wxMouseEvent::Button(int but) const
 621 {
 622     switch (but)
 623     {
 624         default:
 625             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 626             // fall through
 627
 628         case wxMOUSE_BTN_ANY:
 629             return ButtonUp(wxMOUSE_BTN_ANY) ||
 630                     ButtonDown(wxMOUSE_BTN_ANY) ||
 631                         ButtonDClick(wxMOUSE_BTN_ANY);
 632
 633         case wxMOUSE_BTN_LEFT:
 634             return LeftDown() || LeftUp() || LeftDClick();
 635
 636         case wxMOUSE_BTN_MIDDLE:
 637             return MiddleDown() || MiddleUp() || MiddleDClick();
 638
 639         case wxMOUSE_BTN_RIGHT:
 640             return RightDown() || RightUp() || RightDClick();
 641     }
 642 }
 643
 644 bool wxMouseEvent::ButtonIsDown(int but) const
 645 {
 646     switch (but)
 647     {
 648         default:
 649             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 650             // fall through
 651
 652         case wxMOUSE_BTN_ANY:
 653             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 654
 655         case wxMOUSE_BTN_LEFT:
 656             return LeftIsDown();
 657
 658         case wxMOUSE_BTN_MIDDLE:
 659             return MiddleIsDown();
 660
 661         case wxMOUSE_BTN_RIGHT:
 662             return RightIsDown();
 663     }
 664 }
 665
 666 int wxMouseEvent::GetButton() const
 667 {
 668     for ( int i = 1; i <= 3; i++ )
 669     {
 670         if ( Button(i) )
 671         {
 672             return i;
 673         }
 674     }
 675
 676     return wxMOUSE_BTN_NONE;
 677 }
 678
 679 // Find the logical position of the event given the DC
 680 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 681 {
 682     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 683     return pt;
 684 }
 685
 686
 687 /*
 688  * Keyboard event
 689  *
 690  */
 691
 692 wxKeyEvent::wxKeyEvent(wxEventType type)
 693 {
 694     m_eventType = type;
 695     m_shiftDown = false;
 696     m_controlDown = false;
 697     m_metaDown = false;
 698     m_altDown = false;
 699     m_keyCode = 0;
 700     m_scanCode = 0;
 701 #if wxUSE_UNICODE
 702     m_uniChar = 0;
 703 #endif
 704 }
 705
 706 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 707     : wxEvent(evt)
 708 {
 709     m_x = evt.m_x;
 710     m_y = evt.m_y;
 711
 712     m_keyCode = evt.m_keyCode;
 713
 714     m_controlDown = evt.m_controlDown;
 715     m_shiftDown = evt.m_shiftDown;
 716     m_altDown = evt.m_altDown;
 717     m_metaDown = evt.m_metaDown;
 718     m_scanCode = evt.m_scanCode;
 719     m_rawCode = evt.m_rawCode;
 720     m_rawFlags = evt.m_rawFlags;
 721
 722 #if wxUSE_UNICODE
 723     m_uniChar = evt.m_uniChar;
 724 #endif
 725 }
 726
 727 #if WXWIN_COMPATIBILITY_2_6
 728 long wxKeyEvent::KeyCode() const
 729 {
 730     return m_keyCode;
 731 }
 732 #endif // WXWIN_COMPATIBILITY_2_6
 733
 734 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 735 {
 736     SetEventType(wxEVT_CREATE);
 737     SetEventObject(win);
 738 }
 739
 740 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 741 {
 742     SetEventType(wxEVT_DESTROY);
 743     SetEventObject(win);
 744 }
 745
 746 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 747                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 748 {
 749     SetEventObject(win);
 750 }
 751
 752 // ----------------------------------------------------------------------------
 753 // wxHelpEvent
 754 // ----------------------------------------------------------------------------
 755
 756 /* static */
 757 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 758 {
 759     if ( origin == Origin_Unknown )
 760     {
 761         // assume that the event comes from the help button if it's not from
 762         // keyboard and that pressing F1 always results in the help event
 763         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 764     }
 765
 766     return origin;
 767 }
 768
 769 #endif // wxUSE_GUI
 770
 771
 772 #if wxUSE_BASE
 773
 774 // ----------------------------------------------------------------------------
 775 // wxEventHashTable
 776 // ----------------------------------------------------------------------------
 777
 778 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 779
 780 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 781
 782 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 783                 : m_table(table),
 784                   m_rebuildHash(true)
 785 {
 786     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 787
 788     m_next = sm_first;
 789     if (m_next)
 790         m_next->m_previous = this;
 791     sm_first = this;
 792 }
 793
 794 wxEventHashTable::~wxEventHashTable()
 795 {
 796     if (m_next)
 797         m_next->m_previous = m_previous;
 798     if (m_previous)
 799         m_previous->m_next = m_next;
 800     if (sm_first == this)
 801         sm_first = m_next;
 802
 803     Clear();
 804 }
 805
 806 void wxEventHashTable::Clear()
 807 {
 808     for ( size_t i = 0; i < m_size; i++ )
 809     {
 810         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 811         delete eTTnode;
 812     }
 813
 814     delete[] m_eventTypeTable;
 815     m_eventTypeTable = NULL;
 816
 817     m_size = 0;
 818 }
 819
 820 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 821
 822 // Clear all tables
 823 void wxEventHashTable::ClearAll()
 824 {
 825     wxEventHashTable* table = sm_first;
 826     while (table)
 827     {
 828         table->Clear();
 829         table = table->m_next;
 830     }
 831 }
 832
 833 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 834
 835 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 836 {
 837     if (m_rebuildHash)
 838     {
 839         InitHashTable();
 840         m_rebuildHash = false;
 841     }
 842
 843     if (!m_eventTypeTable)
 844         return false;
 845
 846     // Find all entries for the given event type.
 847     wxEventType eventType = event.GetEventType();
 848     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 849     if (eTTnode && eTTnode->eventType == eventType)
 850     {
 851         // Now start the search for an event handler
 852         // that can handle an event with the given ID.
 853         const wxEventTableEntryPointerArray&
 854             eventEntryTable = eTTnode->eventEntryTable;
 855
 856         const size_t count = eventEntryTable.GetCount();
 857         for (size_t n = 0; n < count; n++)
 858         {
 859             if ( wxEvtHandler::
 860                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 861             {
 862                 return true;
 863             }
 864         }
 865     }
 866
 867     return false;
 868 }
 869
 870 void wxEventHashTable::InitHashTable()
 871 {
 872     // Loop over the event tables and all its base tables.
 873     const wxEventTable *table = &m_table;
 874     while (table)
 875     {
 876         // Retrieve all valid event handler entries
 877         const wxEventTableEntry *entry = table->entries;
 878         while (entry->m_fn != 0)
 879         {
 880             // Add the event entry in the Hash.
 881             AddEntry(*entry);
 882
 883             entry++;
 884         }
 885
 886         table = table->baseTable;
 887     }
 888
 889     // Lets free some memory.
 890     size_t i;
 891     for(i = 0; i < m_size; i++)
 892     {
 893         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 894         if (eTTnode)
 895         {
 896             eTTnode->eventEntryTable.Shrink();
 897         }
 898     }
 899 }
 900
 901 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 902 {
 903     // This might happen 'accidentally' as the app is exiting
 904     if (!m_eventTypeTable)
 905         return;
 906
 907     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 908     EventTypeTablePointer  eTTnode = *peTTnode;
 909
 910     if (eTTnode)
 911     {
 912         if (eTTnode->eventType != entry.m_eventType)
 913         {
 914             // Resize the table!
 915             GrowEventTypeTable();
 916             // Try again to add it.
 917             AddEntry(entry);
 918             return;
 919         }
 920     }
 921     else
 922     {
 923         eTTnode = new EventTypeTable;
 924         eTTnode->eventType = entry.m_eventType;
 925         *peTTnode = eTTnode;
 926     }
 927
 928     // Fill all hash entries between entry.m_id and entry.m_lastId...
 929     eTTnode->eventEntryTable.Add(&entry);
 930 }
 931
 932 void wxEventHashTable::AllocEventTypeTable(size_t size)
 933 {
 934     m_eventTypeTable = new EventTypeTablePointer[size];
 935     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 936     m_size = size;
 937 }
 938
 939 void wxEventHashTable::GrowEventTypeTable()
 940 {
 941     size_t oldSize = m_size;
 942     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 943
 944     // TODO: Search the most optimal grow sequence
 945     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 946
 947     for ( size_t i = 0; i < oldSize; /* */ )
 948     {
 949         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 950         if (eTToldNode)
 951         {
 952             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 953             EventTypeTablePointer  eTTnode = *peTTnode;
 954
 955             // Check for collision, we don't want any.
 956             if (eTTnode)
 957             {
 958                 GrowEventTypeTable();
 959                 continue; // Don't increment the counter,
 960                           // as we still need to add this element.
 961             }
 962             else
 963             {
 964                 // Get the old value and put it in the new table.
 965                 *peTTnode = oldEventTypeTable[i];
 966             }
 967         }
 968
 969         i++;
 970     }
 971
 972     delete[] oldEventTypeTable;
 973 }
 974
 975
 976 // ----------------------------------------------------------------------------
 977 // wxEvtHandler
 978 // ----------------------------------------------------------------------------
 979
 980 /*
 981  * Event handler
 982  */
 983
 984 wxEvtHandler::wxEvtHandler()
 985 {
 986     m_nextHandler = (wxEvtHandler *) NULL;
 987     m_previousHandler = (wxEvtHandler *) NULL;
 988     m_enabled = true;
 989     m_dynamicEvents = (wxList *) NULL;
 990     m_pendingEvents = (wxList *) NULL;
 991 #if wxUSE_THREADS
 992 #  if !defined(__VISAGECPP__)
 993     m_eventsLocker = new wxCriticalSection;
 994 #  endif
 995 #endif
 996
 997     // no client data (yet)
 998     m_clientData = NULL;
 999     m_clientDataType = wxClientData_None;
1000 }
1001
1002 wxEvtHandler::~wxEvtHandler()
1003 {
1004     // Takes itself out of the list of handlers
1005     if (m_previousHandler)
1006         m_previousHandler->m_nextHandler = m_nextHandler;
1007
1008     if (m_nextHandler)
1009         m_nextHandler->m_previousHandler = m_previousHandler;
1010
1011     if (m_dynamicEvents)
1012     {
1013         for ( wxList::iterator it = m_dynamicEvents->begin(),
1014                                end = m_dynamicEvents->end();
1015               it != end;
1016               ++it )
1017         {
1018 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1019             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1020 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1021             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1022 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1023
1024             if (entry->m_callbackUserData)
1025                 delete entry->m_callbackUserData;
1026             delete entry;
1027         }
1028         delete m_dynamicEvents;
1029     };
1030
1031     if (m_pendingEvents)
1032         m_pendingEvents->DeleteContents(true);
1033     delete m_pendingEvents;
1034
1035 #if wxUSE_THREADS
1036 #  if !defined(__VISAGECPP__)
1037     delete m_eventsLocker;
1038 #  endif
1039
1040     // Remove us from wxPendingEvents if necessary.
1041     if(wxPendingEventsLocker)
1042         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1043     if ( wxPendingEvents )
1044     {
1045         // Delete all occurences of this from the list of pending events
1046         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1047     }
1048     if(wxPendingEventsLocker)
1049         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1050 #endif
1051
1052     // we only delete object data, not untyped
1053     if ( m_clientDataType == wxClientData_Object )
1054         delete m_clientObject;
1055 }
1056
1057 #if wxUSE_THREADS
1058
1059 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1060 {
1061     // check that we are really in a child thread
1062     wxASSERT_MSG( !wxThread::IsMain(),
1063                   wxT("use ProcessEvent() in main thread") );
1064
1065     AddPendingEvent(event);
1066
1067     return true;
1068 }
1069
1070 void wxEvtHandler::ClearEventLocker()
1071 {
1072 #if !defined(__VISAGECPP__)
1073     delete m_eventsLocker;
1074     m_eventsLocker = NULL;
1075 #endif
1076 }
1077
1078 #endif // wxUSE_THREADS
1079
1080 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1081 {
1082     // 1) Add event to list of pending events of this event handler
1083
1084     wxEvent *eventCopy = event.Clone();
1085
1086     // we must be able to copy the events here so the event class must
1087     // implement Clone() properly instead of just providing a NULL stab for it
1088     wxCHECK_RET( eventCopy,
1089                  _T("events of this type aren't supposed to be posted") );
1090
1091     wxENTER_CRIT_SECT( Lock() );
1092
1093     if ( !m_pendingEvents )
1094       m_pendingEvents = new wxList;
1095
1096     m_pendingEvents->Append(eventCopy);
1097
1098     wxLEAVE_CRIT_SECT( Lock() );
1099
1100     // 2) Add this event handler to list of event handlers that
1101     //    have pending events.
1102
1103     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1104
1105     if ( !wxPendingEvents )
1106         wxPendingEvents = new wxList;
1107     wxPendingEvents->Append(this);
1108
1109     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1110
1111     // 3) Inform the system that new pending events are somewhere,
1112     //    and that these should be processed in idle time.
1113     wxWakeUpIdle();
1114 }
1115
1116 void wxEvtHandler::ProcessPendingEvents()
1117 {
1118     // this method is only called by wxApp if this handler does have
1119     // pending events
1120     wxCHECK_RET( m_pendingEvents,
1121                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1122
1123     wxENTER_CRIT_SECT( Lock() );
1124
1125     // we leave the loop once we have processed all events that were present at
1126     // the start of ProcessPendingEvents because otherwise we could get into
1127     // infinite loop if the pending event handler execution resulted in another
1128     // event being posted
1129     size_t n = m_pendingEvents->size();
1130     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1131           node;
1132           node = m_pendingEvents->GetFirst() )
1133     {
1134         wxEvent *event = (wxEvent *)node->GetData();
1135
1136         // It's importan we remove event from list before processing it.
1137         // Else a nested event loop, for example from a modal dialog, might
1138         // process the same event again.
1139
1140         m_pendingEvents->Erase(node);
1141
1142         wxLEAVE_CRIT_SECT( Lock() );
1143
1144         ProcessEvent(*event);
1145
1146         delete event;
1147
1148         wxENTER_CRIT_SECT( Lock() );
1149
1150         if ( --n == 0 )
1151             break;
1152     }
1153
1154     wxLEAVE_CRIT_SECT( Lock() );
1155 }
1156
1157 /*
1158  * Event table stuff
1159  */
1160 /* static */ bool
1161 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1162                                     wxEvtHandler *handler,
1163                                     wxEvent& event)
1164 {
1165     int tableId1 = entry.m_id,
1166         tableId2 = entry.m_lastId;
1167
1168     // match only if the event type is the same and the id is either -1 in
1169     // the event table (meaning "any") or the event id matches the id
1170     // specified in the event table either exactly or by falling into
1171     // range between first and last
1172     if ((tableId1 == wxID_ANY) ||
1173         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1174         (tableId2 != wxID_ANY &&
1175          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1176     {
1177         event.Skip(false);
1178         event.m_callbackUserData = entry.m_callbackUserData;
1179
1180 #if wxUSE_EXCEPTIONS
1181         if ( wxTheApp )
1182         {
1183             // call the handler via wxApp method which allows the user to catch
1184             // any exceptions which may be thrown by any handler in the program
1185             // in one place
1186             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1187         }
1188         else
1189 #endif // wxUSE_EXCEPTIONS
1190         {
1191             // no need for an extra virtual function call
1192             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1193         }
1194
1195         if (!event.GetSkipped())
1196             return true;
1197     }
1198
1199     return false;
1200 }
1201
1202 bool wxEvtHandler::TryParent(wxEvent& event)
1203 {
1204     if ( wxTheApp && (this != wxTheApp) )
1205     {
1206         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1207         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1208         // processed appropriately via SearchEventTable.
1209         if ( event.GetEventType() != wxEVT_IDLE )
1210         {
1211             if ( wxTheApp->ProcessEvent(event) )
1212                 return true;
1213         }
1214     }
1215
1216     return false;
1217 }
1218
1219 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1220 {
1221     // allow the application to hook into event processing
1222     if ( wxTheApp )
1223     {
1224         int rc = wxTheApp->FilterEvent(event);
1225         if ( rc != -1 )
1226         {
1227             wxASSERT_MSG( rc == 1 || rc == 0,
1228                           _T("unexpected wxApp::FilterEvent return value") );
1229
1230             return rc != 0;
1231         }
1232         //else: proceed normally
1233     }
1234
1235     // An event handler can be enabled or disabled
1236     if ( GetEvtHandlerEnabled() )
1237     {
1238         // if we have a validator, it has higher priority than our own event
1239         // table
1240         if ( TryValidator(event) )
1241             return true;
1242
1243         // Handle per-instance dynamic event tables first
1244         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1245             return true;
1246
1247         // Then static per-class event tables
1248         if ( GetEventHashTable().HandleEvent(event, this) )
1249             return true;
1250     }
1251
1252     // Try going down the event handler chain
1253     if ( GetNextHandler() )
1254     {
1255         // notice that we shouldn't let the parent have the event even if the
1256         // next handler does not process it because it will have already passed
1257         // it to the parent in this case
1258         return GetNextHandler()->ProcessEvent(event);
1259     }
1260
1261     // Finally propagate the event upwards the window chain and/or to the
1262     // application object as necessary
1263     return TryParent(event);
1264 }
1265
1266
1267 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1268 {
1269     const wxEventType eventType = event.GetEventType();
1270     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1271     {
1272         const wxEventTableEntry& entry = table.entries[i];
1273         if ( eventType == entry.m_eventType )
1274         {
1275             if ( ProcessEventIfMatches(entry, this, event) )
1276                 return true;
1277         }
1278     }
1279
1280     return false;
1281 }
1282
1283 void wxEvtHandler::Connect( int id, int lastId,
1284                             int eventType,
1285                             wxObjectEventFunction func,
1286                             wxObject *userData,
1287                             wxEvtHandler* eventSink )
1288 {
1289 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1290     wxEventTableEntry *entry = new wxEventTableEntry;
1291     entry->m_eventType = eventType;
1292     entry->m_id = id;
1293     entry->m_lastId = lastId;
1294     entry->m_fn = func;
1295     entry->m_callbackUserData = userData;
1296 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1297     wxDynamicEventTableEntry *entry =
1298         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1299 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1300
1301     if (!m_dynamicEvents)
1302         m_dynamicEvents = new wxList;
1303
1304     // Insert at the front of the list so most recent additions are found first
1305     m_dynamicEvents->Insert( (wxObject*) entry );
1306 }
1307
1308 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1309                   wxObjectEventFunction func,
1310                   wxObject *userData,
1311                   wxEvtHandler* eventSink )
1312 {
1313     if (!m_dynamicEvents)
1314         return false;
1315
1316     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1317     while (node)
1318     {
1319 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1320             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1321 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1322             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1323 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1324
1325         if ((entry->m_id == id) &&
1326             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1327             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1328             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1329             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1330             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1331         {
1332             if (entry->m_callbackUserData)
1333                 delete entry->m_callbackUserData;
1334             m_dynamicEvents->Erase( node );
1335             delete entry;
1336             return true;
1337         }
1338         node = node->GetNext();
1339     }
1340     return false;
1341 }
1342
1343 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1344 {
1345     wxCHECK_MSG( m_dynamicEvents, false,
1346                  wxT("caller should check that we have dynamic events") );
1347
1348     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1349     while (node)
1350     {
1351 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1352         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1353 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1354         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1355 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1356
1357         // get next node before (maybe) calling the event handler as it could
1358         // call Disconnect() invalidating the current node
1359         node = node->GetNext();
1360
1361         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1362         {
1363             wxEvtHandler *handler =
1364 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1365                                     entry->m_eventSink ? entry->m_eventSink
1366                                                        :
1367 #endif
1368                                                          this;
1369
1370             if ( ProcessEventIfMatches(*entry, handler, event) )
1371             {
1372                 return true;
1373             }
1374         }
1375     }
1376
1377     return false;
1378 }
1379
1380 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1381 {
1382     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1383                   wxT("can't have both object and void client data") );
1384
1385     if ( m_clientObject )
1386         delete m_clientObject;
1387
1388     m_clientObject = data;
1389     m_clientDataType = wxClientData_Object;
1390 }
1391
1392 wxClientData *wxEvtHandler::DoGetClientObject() const
1393 {
1394     // it's not an error to call GetClientObject() on a window which doesn't
1395     // have client data at all - NULL will be returned
1396     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1397                   wxT("this window doesn't have object client data") );
1398
1399     return m_clientObject;
1400 }
1401
1402 void wxEvtHandler::DoSetClientData( void *data )
1403 {
1404     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1405                   wxT("can't have both object and void client data") );
1406
1407     m_clientData = data;
1408     m_clientDataType = wxClientData_Void;
1409 }
1410
1411 void *wxEvtHandler::DoGetClientData() const
1412 {
1413     // it's not an error to call GetClientData() on a window which doesn't have
1414     // client data at all - NULL will be returned
1415     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1416                   wxT("this window doesn't have void client data") );
1417
1418     return m_clientData;
1419 }
1420
1421 #endif // wxUSE_BASE
1422
1423 #if wxUSE_GUI
1424
1425 // Find a window with the focus, that is also a descendant of the given window.
1426 // This is used to determine the window to initially send commands to.
1427 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1428 {
1429     // Process events starting with the window with the focus, if any.
1430     wxWindow* focusWin = wxWindow::FindFocus();
1431     wxWindow* win = focusWin;
1432
1433     // Check if this is a descendant of this frame.
1434     // If not, win will be set to NULL.
1435     while (win)
1436     {
1437         if (win == ancestor)
1438             break;
1439         else
1440             win = win->GetParent();
1441     }
1442     if (win == (wxWindow*) NULL)
1443         focusWin = (wxWindow*) NULL;
1444
1445     return focusWin;
1446 }
1447
1448 // ----------------------------------------------------------------------------
1449 // wxEventBlocker
1450 // ----------------------------------------------------------------------------
1451
1452 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1453 {
1454     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1455
1456     m_window = win;
1457
1458     Block(type);
1459     m_window->PushEventHandler(this);
1460 }
1461
1462 wxEventBlocker::~wxEventBlocker()
1463 {
1464     wxEvtHandler *popped = m_window->PopEventHandler(false);
1465     wxCHECK_RET(popped == this,
1466         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1467 }
1468
1469 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1470 {
1471     // should this event be blocked?
1472     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1473     {
1474         wxEventType t = (wxEventType)m_eventsToBlock[i];
1475         if ( t == wxEVT_ANY || t == event.GetEventType() )
1476             return true;   // yes, it should: mark this event as processed
1477     }
1478
1479     return false;
1480 }
1481
1482 #endif // wxUSE_GUI