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 #include "wx/evtloop.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/list.h"
  32     #include "wx/app.h"
  33     #include "wx/utils.h"
  34     #include "wx/stopwatch.h"
  35     #include "wx/module.h"
  36
  37     #if wxUSE_GUI
  38         #include "wx/window.h"
  39         #include "wx/control.h"
  40         #include "wx/dc.h"
  41         #include "wx/textctrl.h"
  42         #include "wx/validate.h"
  43     #endif // wxUSE_GUI
  44 #endif
  45
  46 #include "wx/thread.h"
  47
  48 #if wxUSE_BASE
  49     #include "wx/ptr_scpd.h"
  50
  51     wxDECLARE_SCOPED_PTR(wxEvent, wxEventPtr)
  52     wxDEFINE_SCOPED_PTR(wxEvent, wxEventPtr)
  53 #endif // wxUSE_BASE
  54
  55 // ----------------------------------------------------------------------------
  56 // wxWin macros
  57 // ----------------------------------------------------------------------------
  58
  59 #if wxUSE_BASE
  60     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  61     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  62     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  63 #endif // wxUSE_BASE
  64
  65 #if wxUSE_GUI
  66     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  96     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  97     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  98     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  99     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
 100     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
 101     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
 102 #endif // wxUSE_GUI
 103
 104 #if wxUSE_BASE
 105
 106 const wxEventTable *wxEvtHandler::GetEventTable() const
 107     { return &wxEvtHandler::sm_eventTable; }
 108
 109 const wxEventTable wxEvtHandler::sm_eventTable =
 110     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 111
 112 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 113     { return wxEvtHandler::sm_eventHashTable; }
 114
 115 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 116
 117 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 118     { DECLARE_EVENT_TABLE_TERMINATOR() };
 119
 120
 121 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
 122 // leaked, so we need to manually clean up all event tables before checking for
 123 // the memory leaks when using it, however this breaks re-initializing the
 124 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
 125 // event tables won't be rebuilt the next time, so disable this by default
 126 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 127
 128 class wxEventTableEntryModule: public wxModule
 129 {
 130 public:
 131     wxEventTableEntryModule() { }
 132     virtual bool OnInit() { return true; }
 133     virtual void OnExit() { wxEventHashTable::ClearAll(); }
 134
 135     DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 136 };
 137
 138 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 139
 140 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 141
 142 // ----------------------------------------------------------------------------
 143 // global variables
 144 // ----------------------------------------------------------------------------
 145
 146 // List containing event handlers with pending events (each handler can occur
 147 // at most once here)
 148 wxList *wxHandlersWithPendingEvents = NULL;
 149
 150 #if wxUSE_THREADS
 151     // protects wxHandlersWithPendingEvents list
 152     wxCriticalSection *wxHandlersWithPendingEventsLocker = NULL;
 153 #endif
 154
 155 // common event types are defined here, other event types are defined by the
 156 // components which use them
 157
 158 const wxEventType wxEVT_FIRST = 10000;
 159 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 160
 161 DEFINE_EVENT_TYPE(wxEVT_NULL)
 162 wxDEFINE_EVENT( wxEVT_IDLE, wxIdleEvent )
 163
 164 #endif // wxUSE_BASE
 165
 166 #if wxUSE_GUI
 167
 168 wxDEFINE_EVENT( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEvent )
 169 wxDEFINE_EVENT( wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEvent )
 170 wxDEFINE_EVENT( wxEVT_COMMAND_CHOICE_SELECTED, wxCommandEvent )
 171 wxDEFINE_EVENT( wxEVT_COMMAND_LISTBOX_SELECTED, wxCommandEvent )
 172 wxDEFINE_EVENT( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, wxCommandEvent )
 173 wxDEFINE_EVENT( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, wxCommandEvent )
 174 wxDEFINE_EVENT( wxEVT_COMMAND_MENU_SELECTED, wxCommandEvent )
 175 wxDEFINE_EVENT( wxEVT_COMMAND_SLIDER_UPDATED, wxCommandEvent )
 176 wxDEFINE_EVENT( wxEVT_COMMAND_RADIOBOX_SELECTED, wxCommandEvent )
 177 wxDEFINE_EVENT( wxEVT_COMMAND_RADIOBUTTON_SELECTED, wxCommandEvent )
 178 wxDEFINE_EVENT( wxEVT_COMMAND_SCROLLBAR_UPDATED, wxCommandEvent )
 179 wxDEFINE_EVENT( wxEVT_COMMAND_VLBOX_SELECTED, wxCommandEvent )
 180 wxDEFINE_EVENT( wxEVT_COMMAND_COMBOBOX_SELECTED, wxCommandEvent )
 181 wxDEFINE_EVENT( wxEVT_COMMAND_TOOL_RCLICKED, wxCommandEvent )
 182 wxDEFINE_EVENT( wxEVT_COMMAND_TOOL_ENTER, wxCommandEvent )
 183 wxDEFINE_EVENT( wxEVT_COMMAND_SPINCTRL_UPDATED, wxCommandEvent )
 184 wxDEFINE_EVENT( wxEVT_COMMAND_SPINCTRLDOUBLE_UPDATED, wxCommandEvent )
 185 wxDEFINE_EVENT( wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED, wxCommandEvent )
 186
 187 // Mouse event types
 188 wxDEFINE_EVENT( wxEVT_LEFT_DOWN, wxMouseEvent )
 189 wxDEFINE_EVENT( wxEVT_LEFT_UP, wxMouseEvent )
 190 wxDEFINE_EVENT( wxEVT_MIDDLE_DOWN, wxMouseEvent )
 191 wxDEFINE_EVENT( wxEVT_MIDDLE_UP, wxMouseEvent )
 192 wxDEFINE_EVENT( wxEVT_RIGHT_DOWN, wxMouseEvent )
 193 wxDEFINE_EVENT( wxEVT_RIGHT_UP, wxMouseEvent )
 194 wxDEFINE_EVENT( wxEVT_MOTION, wxMouseEvent )
 195 wxDEFINE_EVENT( wxEVT_ENTER_WINDOW, wxMouseEvent )
 196 wxDEFINE_EVENT( wxEVT_LEAVE_WINDOW, wxMouseEvent )
 197 wxDEFINE_EVENT( wxEVT_LEFT_DCLICK, wxMouseEvent )
 198 wxDEFINE_EVENT( wxEVT_MIDDLE_DCLICK, wxMouseEvent )
 199 wxDEFINE_EVENT( wxEVT_RIGHT_DCLICK, wxMouseEvent )
 200 wxDEFINE_EVENT( wxEVT_SET_FOCUS, wxFocusEvent )
 201 wxDEFINE_EVENT( wxEVT_KILL_FOCUS, wxFocusEvent )
 202 wxDEFINE_EVENT( wxEVT_CHILD_FOCUS, wxChildFocusEvent )
 203 wxDEFINE_EVENT( wxEVT_MOUSEWHEEL, wxMouseEvent )
 204 wxDEFINE_EVENT( wxEVT_AUX1_DOWN, wxMouseEvent )
 205 wxDEFINE_EVENT( wxEVT_AUX1_UP, wxMouseEvent )
 206 wxDEFINE_EVENT( wxEVT_AUX1_DCLICK, wxMouseEvent )
 207 wxDEFINE_EVENT( wxEVT_AUX2_DOWN, wxMouseEvent )
 208 wxDEFINE_EVENT( wxEVT_AUX2_UP, wxMouseEvent )
 209 wxDEFINE_EVENT( wxEVT_AUX2_DCLICK, wxMouseEvent )
 210
 211 // Character input event type
 212 wxDEFINE_EVENT( wxEVT_CHAR, wxKeyEvent )
 213 wxDEFINE_EVENT( wxEVT_CHAR_HOOK, wxKeyEvent )
 214 wxDEFINE_EVENT( wxEVT_NAVIGATION_KEY, wxNavigationKeyEvent )
 215 wxDEFINE_EVENT( wxEVT_KEY_DOWN, wxKeyEvent )
 216 wxDEFINE_EVENT( wxEVT_KEY_UP, wxKeyEvent )
 217 #if wxUSE_HOTKEY
 218 wxDEFINE_EVENT( wxEVT_HOTKEY, wxKeyEvent )
 219 #endif
 220
 221 // Set cursor event
 222 wxDEFINE_EVENT( wxEVT_SET_CURSOR, wxSetCursorEvent )
 223
 224 // wxScrollbar and wxSlider event identifiers
 225 wxDEFINE_EVENT( wxEVT_SCROLL_TOP, wxScrollEvent )
 226 wxDEFINE_EVENT( wxEVT_SCROLL_BOTTOM, wxScrollEvent )
 227 wxDEFINE_EVENT( wxEVT_SCROLL_LINEUP, wxScrollEvent )
 228 wxDEFINE_EVENT( wxEVT_SCROLL_LINEDOWN, wxScrollEvent )
 229 wxDEFINE_EVENT( wxEVT_SCROLL_PAGEUP, wxScrollEvent )
 230 wxDEFINE_EVENT( wxEVT_SCROLL_PAGEDOWN, wxScrollEvent )
 231 wxDEFINE_EVENT( wxEVT_SCROLL_THUMBTRACK, wxScrollEvent )
 232 wxDEFINE_EVENT( wxEVT_SCROLL_THUMBRELEASE, wxScrollEvent )
 233 wxDEFINE_EVENT( wxEVT_SCROLL_CHANGED, wxScrollEvent )
 234
 235 // Scroll events from wxWindow
 236 wxDEFINE_EVENT( wxEVT_SCROLLWIN_TOP, wxScrollWinEvent )
 237 wxDEFINE_EVENT( wxEVT_SCROLLWIN_BOTTOM, wxScrollWinEvent )
 238 wxDEFINE_EVENT( wxEVT_SCROLLWIN_LINEUP, wxScrollWinEvent )
 239 wxDEFINE_EVENT( wxEVT_SCROLLWIN_LINEDOWN, wxScrollWinEvent )
 240 wxDEFINE_EVENT( wxEVT_SCROLLWIN_PAGEUP, wxScrollWinEvent )
 241 wxDEFINE_EVENT( wxEVT_SCROLLWIN_PAGEDOWN, wxScrollWinEvent )
 242 wxDEFINE_EVENT( wxEVT_SCROLLWIN_THUMBTRACK, wxScrollWinEvent )
 243 wxDEFINE_EVENT( wxEVT_SCROLLWIN_THUMBRELEASE, wxScrollWinEvent )
 244
 245 // System events
 246 wxDEFINE_EVENT( wxEVT_SIZE, wxSizeEvent )
 247 wxDEFINE_EVENT( wxEVT_SIZING, wxSizeEvent )
 248 wxDEFINE_EVENT( wxEVT_MOVE, wxMoveEvent )
 249 wxDEFINE_EVENT( wxEVT_MOVING, wxMoveEvent )
 250 wxDEFINE_EVENT( wxEVT_MOVE_START, wxMoveEvent )
 251 wxDEFINE_EVENT( wxEVT_MOVE_END, wxMoveEvent )
 252 wxDEFINE_EVENT( wxEVT_CLOSE_WINDOW, wxCloseEvent )
 253 wxDEFINE_EVENT( wxEVT_END_SESSION, wxCloseEvent )
 254 wxDEFINE_EVENT( wxEVT_QUERY_END_SESSION, wxCloseEvent )
 255 wxDEFINE_EVENT( wxEVT_HIBERNATE, wxActivateEvent )
 256 wxDEFINE_EVENT( wxEVT_ACTIVATE_APP, wxActivateEvent )
 257 wxDEFINE_EVENT( wxEVT_ACTIVATE, wxActivateEvent )
 258 wxDEFINE_EVENT( wxEVT_CREATE, wxWindowCreateEvent )
 259 wxDEFINE_EVENT( wxEVT_DESTROY, wxWindowDestroyEvent )
 260 wxDEFINE_EVENT( wxEVT_SHOW, wxShowEvent )
 261 wxDEFINE_EVENT( wxEVT_ICONIZE, wxIconizeEvent )
 262 wxDEFINE_EVENT( wxEVT_MAXIMIZE, wxMaximizeEvent )
 263 wxDEFINE_EVENT( wxEVT_MOUSE_CAPTURE_CHANGED, wxMouseCaptureChangedEvent )
 264 wxDEFINE_EVENT( wxEVT_MOUSE_CAPTURE_LOST, wxMouseCaptureLostEvent )
 265 wxDEFINE_EVENT( wxEVT_PAINT, wxPaintEvent )
 266 wxDEFINE_EVENT( wxEVT_ERASE_BACKGROUND, wxEraseEvent )
 267 wxDEFINE_EVENT( wxEVT_NC_PAINT, wxNcPaintEvent )
 268 wxDEFINE_EVENT( wxEVT_MENU_OPEN, wxMenuEvent )
 269 wxDEFINE_EVENT( wxEVT_MENU_CLOSE, wxMenuEvent )
 270 wxDEFINE_EVENT( wxEVT_MENU_HIGHLIGHT, wxMenuEvent )
 271 wxDEFINE_EVENT( wxEVT_CONTEXT_MENU, wxContextMenuEvent )
 272 wxDEFINE_EVENT( wxEVT_SYS_COLOUR_CHANGED, wxSysColourChangedEvent )
 273 wxDEFINE_EVENT( wxEVT_DISPLAY_CHANGED, wxDisplayChangedEvent )
 274 wxDEFINE_EVENT( wxEVT_QUERY_NEW_PALETTE, wxQueryNewPaletteEvent )
 275 wxDEFINE_EVENT( wxEVT_PALETTE_CHANGED, wxPaletteChangedEvent )
 276 wxDEFINE_EVENT( wxEVT_JOY_BUTTON_DOWN, wxJoystickEvent )
 277 wxDEFINE_EVENT( wxEVT_JOY_BUTTON_UP, wxJoystickEvent )
 278 wxDEFINE_EVENT( wxEVT_JOY_MOVE, wxJoystickEvent )
 279 wxDEFINE_EVENT( wxEVT_JOY_ZMOVE, wxJoystickEvent )
 280 wxDEFINE_EVENT( wxEVT_DROP_FILES, wxDropFilesEvent )
 281 wxDEFINE_EVENT( wxEVT_INIT_DIALOG, wxInitDialogEvent )
 282 wxDEFINE_EVENT( wxEVT_UPDATE_UI, wxUpdateUIEvent )
 283
 284 // Clipboard events
 285 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_COPY, wxClipboardTextEvent )
 286 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_CUT, wxClipboardTextEvent )
 287 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_PASTE, wxClipboardTextEvent )
 288
 289 // Generic command events
 290 // Note: a click is a higher-level event than button down/up
 291 wxDEFINE_EVENT( wxEVT_COMMAND_LEFT_CLICK, wxCommandEvent )
 292 wxDEFINE_EVENT( wxEVT_COMMAND_LEFT_DCLICK, wxCommandEvent )
 293 wxDEFINE_EVENT( wxEVT_COMMAND_RIGHT_CLICK, wxCommandEvent )
 294 wxDEFINE_EVENT( wxEVT_COMMAND_RIGHT_DCLICK, wxCommandEvent )
 295 wxDEFINE_EVENT( wxEVT_COMMAND_SET_FOCUS, wxCommandEvent )
 296 wxDEFINE_EVENT( wxEVT_COMMAND_KILL_FOCUS, wxCommandEvent )
 297 wxDEFINE_EVENT( wxEVT_COMMAND_ENTER, wxCommandEvent )
 298
 299 // Help events
 300 wxDEFINE_EVENT( wxEVT_HELP, wxHelpEvent )
 301 wxDEFINE_EVENT( wxEVT_DETAILED_HELP, wxHelpEvent )
 302
 303 #endif // wxUSE_GUI
 304
 305 #if wxUSE_BASE
 306
 307 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 308
 309 // ============================================================================
 310 // implementation
 311 // ============================================================================
 312
 313 // ----------------------------------------------------------------------------
 314 // event initialization
 315 // ----------------------------------------------------------------------------
 316
 317 int wxNewEventType()
 318 {
 319     // MT-FIXME
 320     static int s_lastUsedEventType = wxEVT_FIRST;
 321
 322     return s_lastUsedEventType++;
 323 }
 324 // ----------------------------------------------------------------------------
 325 // wxEventFunctor
 326 // ----------------------------------------------------------------------------
 327
 328 wxEventFunctor::~wxEventFunctor()
 329 {
 330 }
 331
 332 // ----------------------------------------------------------------------------
 333 // wxEvent
 334 // ----------------------------------------------------------------------------
 335
 336 /*
 337  * General wxWidgets events, covering
 338  * all interesting things that might happen (button clicking, resizing,
 339  * setting text in widgets, etc.).
 340  *
 341  * For each completely new event type, derive a new event class.
 342  *
 343  */
 344
 345 wxEvent::wxEvent(int theId, wxEventType commandType )
 346 {
 347     m_eventType = commandType;
 348     m_eventObject = NULL;
 349     m_timeStamp = 0;
 350     m_id = theId;
 351     m_skipped = false;
 352     m_callbackUserData = NULL;
 353     m_isCommandEvent = false;
 354     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 355 }
 356
 357 wxEvent::wxEvent(const wxEvent& src)
 358     : wxObject(src)
 359     , m_eventObject(src.m_eventObject)
 360     , m_eventType(src.m_eventType)
 361     , m_timeStamp(src.m_timeStamp)
 362     , m_id(src.m_id)
 363     , m_callbackUserData(src.m_callbackUserData)
 364     , m_propagationLevel(src.m_propagationLevel)
 365     , m_skipped(src.m_skipped)
 366     , m_isCommandEvent(src.m_isCommandEvent)
 367 {
 368 }
 369
 370 wxEvent& wxEvent::operator=(const wxEvent& src)
 371 {
 372     wxObject::operator=(src);
 373
 374     m_eventObject = src.m_eventObject;
 375     m_eventType = src.m_eventType;
 376     m_timeStamp = src.m_timeStamp;
 377     m_id = src.m_id;
 378     m_callbackUserData = src.m_callbackUserData;
 379     m_propagationLevel = src.m_propagationLevel;
 380     m_skipped = src.m_skipped;
 381     m_isCommandEvent = src.m_isCommandEvent;
 382
 383     return *this;
 384 }
 385
 386 #endif // wxUSE_BASE
 387
 388 #if wxUSE_GUI
 389
 390 /*
 391  * Command events
 392  *
 393  */
 394
 395 #ifdef __VISUALC__
 396     // 'this' : used in base member initializer list (for m_commandString)
 397     #pragma warning(disable:4355)
 398 #endif
 399
 400 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 401               : wxEvent(theId, commandType)
 402 {
 403     m_clientData = NULL;
 404     m_clientObject = NULL;
 405     m_extraLong = 0;
 406     m_commandInt = 0;
 407     m_isCommandEvent = true;
 408
 409     // the command events are propagated upwards by default
 410     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 411 }
 412
 413 #ifdef __VISUALC__
 414     #pragma warning(default:4355)
 415 #endif
 416
 417 wxString wxCommandEvent::GetString() const
 418 {
 419     if (m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 420     {
 421         return m_cmdString;
 422     }
 423     else
 424     {
 425 #if wxUSE_TEXTCTRL
 426         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 427         if ( txt )
 428             return txt->GetValue();
 429         else
 430 #endif // wxUSE_TEXTCTRL
 431             return m_cmdString;
 432     }
 433 }
 434
 435 /*
 436  * UI update events
 437  */
 438
 439 #if wxUSE_LONGLONG
 440 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 441 #endif
 442
 443 long wxUpdateUIEvent::sm_updateInterval = 0;
 444
 445 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 446
 447 // Can we update?
 448 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 449 {
 450     // Don't update if we've switched global updating off
 451     // and this window doesn't support updates.
 452     if (win &&
 453        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 454        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 455         return false;
 456
 457     if (sm_updateInterval == -1)
 458         return false;
 459
 460     if (sm_updateInterval == 0)
 461         return true;
 462
 463 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 464     wxLongLong now = wxGetLocalTimeMillis();
 465     if (now > (sm_lastUpdate + sm_updateInterval))
 466     {
 467         return true;
 468     }
 469
 470     return false;
 471 #else
 472     // If we don't have wxStopWatch or wxLongLong, we
 473     // should err on the safe side and update now anyway.
 474     return true;
 475 #endif
 476 }
 477
 478 // Reset the update time to provide a delay until the next
 479 // time we should update
 480 void wxUpdateUIEvent::ResetUpdateTime()
 481 {
 482 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 483     if (sm_updateInterval > 0)
 484     {
 485         wxLongLong now = wxGetLocalTimeMillis();
 486         if (now > (sm_lastUpdate + sm_updateInterval))
 487         {
 488             sm_lastUpdate = now;
 489         }
 490     }
 491 #endif
 492 }
 493
 494 /*
 495  * Scroll events
 496  */
 497
 498 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 499                              int id,
 500                              int pos,
 501                              int orient)
 502     : wxCommandEvent(commandType, id)
 503 {
 504     m_extraLong = orient;
 505     m_commandInt = pos;
 506 }
 507
 508 /*
 509  * ScrollWin events
 510  */
 511
 512 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 513                                    int pos,
 514                                    int orient)
 515 {
 516     m_eventType = commandType;
 517     m_extraLong = orient;
 518     m_commandInt = pos;
 519 }
 520
 521 /*
 522  * Mouse events
 523  *
 524  */
 525
 526 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 527 {
 528     m_eventType = commandType;
 529
 530     m_x = 0;
 531     m_y = 0;
 532
 533     m_leftDown = false;
 534     m_middleDown = false;
 535     m_rightDown = false;
 536     m_aux1Down = false;
 537     m_aux2Down = false;
 538
 539     m_clickCount = -1;
 540
 541     m_wheelRotation = 0;
 542     m_wheelDelta = 0;
 543     m_linesPerAction = 0;
 544     m_wheelAxis = 0;
 545 }
 546
 547 void wxMouseEvent::Assign(const wxMouseEvent& event)
 548 {
 549     wxEvent::operator=(event);
 550
 551     // Borland C++ 5.82 doesn't compile an explicit call to an implicitly
 552     // defined operator=() so need to do it this way:
 553     *static_cast<wxMouseState *>(this) = event;
 554
 555     m_x = event.m_x;
 556     m_y = event.m_y;
 557
 558     m_leftDown = event.m_leftDown;
 559     m_middleDown = event.m_middleDown;
 560     m_rightDown = event.m_rightDown;
 561     m_aux1Down = event.m_aux1Down;
 562     m_aux2Down = event.m_aux2Down;
 563
 564     m_wheelRotation = event.m_wheelRotation;
 565     m_wheelDelta = event.m_wheelDelta;
 566     m_linesPerAction = event.m_linesPerAction;
 567     m_wheelAxis = event.m_wheelAxis;
 568 }
 569
 570 // return true if was a button dclick event
 571 bool wxMouseEvent::ButtonDClick(int but) const
 572 {
 573     switch (but)
 574     {
 575         default:
 576             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 577             // fall through
 578
 579         case wxMOUSE_BTN_ANY:
 580             return (LeftDClick() || MiddleDClick() || RightDClick() ||
 581                     Aux1DClick() || Aux2DClick());
 582
 583         case wxMOUSE_BTN_LEFT:
 584             return LeftDClick();
 585
 586         case wxMOUSE_BTN_MIDDLE:
 587             return MiddleDClick();
 588
 589         case wxMOUSE_BTN_RIGHT:
 590             return RightDClick();
 591
 592         case wxMOUSE_BTN_AUX1:
 593             return Aux1DClick();
 594
 595         case wxMOUSE_BTN_AUX2:
 596             return Aux2DClick();
 597     }
 598 }
 599
 600 // return true if was a button down event
 601 bool wxMouseEvent::ButtonDown(int but) const
 602 {
 603     switch (but)
 604     {
 605         default:
 606             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 607             // fall through
 608
 609         case wxMOUSE_BTN_ANY:
 610             return (LeftDown() || MiddleDown() || RightDown() ||
 611                     Aux1Down() || Aux2Down());
 612
 613         case wxMOUSE_BTN_LEFT:
 614             return LeftDown();
 615
 616         case wxMOUSE_BTN_MIDDLE:
 617             return MiddleDown();
 618
 619         case wxMOUSE_BTN_RIGHT:
 620             return RightDown();
 621
 622         case wxMOUSE_BTN_AUX1:
 623             return Aux1Down();
 624
 625         case wxMOUSE_BTN_AUX2:
 626             return Aux2Down();
 627     }
 628 }
 629
 630 // return true if was a button up event
 631 bool wxMouseEvent::ButtonUp(int but) const
 632 {
 633     switch (but)
 634     {
 635         default:
 636             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 637             // fall through
 638
 639         case wxMOUSE_BTN_ANY:
 640             return (LeftUp() || MiddleUp() || RightUp() ||
 641                     Aux1Up() || Aux2Up());
 642
 643         case wxMOUSE_BTN_LEFT:
 644             return LeftUp();
 645
 646         case wxMOUSE_BTN_MIDDLE:
 647             return MiddleUp();
 648
 649         case wxMOUSE_BTN_RIGHT:
 650             return RightUp();
 651
 652         case wxMOUSE_BTN_AUX1:
 653             return Aux1Up();
 654
 655         case wxMOUSE_BTN_AUX2:
 656             return Aux2Up();
 657     }
 658 }
 659
 660 // return true if the given button is currently changing state
 661 bool wxMouseEvent::Button(int but) const
 662 {
 663     switch (but)
 664     {
 665         default:
 666             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 667             // fall through
 668
 669         case wxMOUSE_BTN_ANY:
 670             return ButtonUp(wxMOUSE_BTN_ANY) ||
 671                     ButtonDown(wxMOUSE_BTN_ANY) ||
 672                         ButtonDClick(wxMOUSE_BTN_ANY);
 673
 674         case wxMOUSE_BTN_LEFT:
 675             return LeftDown() || LeftUp() || LeftDClick();
 676
 677         case wxMOUSE_BTN_MIDDLE:
 678             return MiddleDown() || MiddleUp() || MiddleDClick();
 679
 680         case wxMOUSE_BTN_RIGHT:
 681             return RightDown() || RightUp() || RightDClick();
 682
 683         case wxMOUSE_BTN_AUX1:
 684            return Aux1Down() || Aux1Up() || Aux1DClick();
 685
 686         case wxMOUSE_BTN_AUX2:
 687            return Aux2Down() || Aux2Up() || Aux2DClick();
 688     }
 689 }
 690
 691 bool wxMouseEvent::ButtonIsDown(int but) const
 692 {
 693     switch (but)
 694     {
 695         default:
 696             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 697             // fall through
 698
 699         case wxMOUSE_BTN_ANY:
 700             return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
 701
 702         case wxMOUSE_BTN_LEFT:
 703             return LeftIsDown();
 704
 705         case wxMOUSE_BTN_MIDDLE:
 706             return MiddleIsDown();
 707
 708         case wxMOUSE_BTN_RIGHT:
 709             return RightIsDown();
 710
 711         case wxMOUSE_BTN_AUX1:
 712             return Aux1IsDown();
 713
 714         case wxMOUSE_BTN_AUX2:
 715             return Aux2IsDown();
 716     }
 717 }
 718
 719 int wxMouseEvent::GetButton() const
 720 {
 721     for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
 722     {
 723         if ( Button(i) )
 724         {
 725             return i;
 726         }
 727     }
 728
 729     return wxMOUSE_BTN_NONE;
 730 }
 731
 732 // Find the logical position of the event given the DC
 733 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 734 {
 735     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 736     return pt;
 737 }
 738
 739
 740 /*
 741  * Keyboard event
 742  *
 743  */
 744
 745 wxKeyEvent::wxKeyEvent(wxEventType type)
 746 {
 747     m_eventType = type;
 748     m_keyCode = 0;
 749     m_scanCode = 0;
 750 #if wxUSE_UNICODE
 751     m_uniChar = 0;
 752 #endif
 753 }
 754
 755 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 756           : wxEvent(evt),
 757             wxKeyboardState(evt)
 758 {
 759     m_x = evt.m_x;
 760     m_y = evt.m_y;
 761
 762     m_keyCode = evt.m_keyCode;
 763
 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 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 774 {
 775     SetEventType(wxEVT_CREATE);
 776     SetEventObject(win);
 777 }
 778
 779 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 780 {
 781     SetEventType(wxEVT_DESTROY);
 782     SetEventObject(win);
 783 }
 784
 785 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 786                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 787 {
 788     SetEventObject(win);
 789 }
 790
 791 // ----------------------------------------------------------------------------
 792 // wxHelpEvent
 793 // ----------------------------------------------------------------------------
 794
 795 /* static */
 796 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 797 {
 798     if ( origin == Origin_Unknown )
 799     {
 800         // assume that the event comes from the help button if it's not from
 801         // keyboard and that pressing F1 always results in the help event
 802         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 803     }
 804
 805     return origin;
 806 }
 807
 808 #endif // wxUSE_GUI
 809
 810
 811 #if wxUSE_BASE
 812
 813 // ----------------------------------------------------------------------------
 814 // wxEventHashTable
 815 // ----------------------------------------------------------------------------
 816
 817 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 818
 819 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 820
 821 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 822                 : m_table(table),
 823                   m_rebuildHash(true)
 824 {
 825     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 826
 827     m_next = sm_first;
 828     if (m_next)
 829         m_next->m_previous = this;
 830     sm_first = this;
 831 }
 832
 833 wxEventHashTable::~wxEventHashTable()
 834 {
 835     if (m_next)
 836         m_next->m_previous = m_previous;
 837     if (m_previous)
 838         m_previous->m_next = m_next;
 839     if (sm_first == this)
 840         sm_first = m_next;
 841
 842     Clear();
 843 }
 844
 845 void wxEventHashTable::Clear()
 846 {
 847     for ( size_t i = 0; i < m_size; i++ )
 848     {
 849         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 850         delete eTTnode;
 851     }
 852
 853     delete[] m_eventTypeTable;
 854     m_eventTypeTable = NULL;
 855
 856     m_size = 0;
 857 }
 858
 859 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 860
 861 // Clear all tables
 862 void wxEventHashTable::ClearAll()
 863 {
 864     wxEventHashTable* table = sm_first;
 865     while (table)
 866     {
 867         table->Clear();
 868         table = table->m_next;
 869     }
 870 }
 871
 872 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 873
 874 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 875 {
 876     if (m_rebuildHash)
 877     {
 878         InitHashTable();
 879         m_rebuildHash = false;
 880     }
 881
 882     if (!m_eventTypeTable)
 883         return false;
 884
 885     // Find all entries for the given event type.
 886     wxEventType eventType = event.GetEventType();
 887     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 888     if (eTTnode && eTTnode->eventType == eventType)
 889     {
 890         // Now start the search for an event handler
 891         // that can handle an event with the given ID.
 892         const wxEventTableEntryPointerArray&
 893             eventEntryTable = eTTnode->eventEntryTable;
 894
 895         const size_t count = eventEntryTable.GetCount();
 896         for (size_t n = 0; n < count; n++)
 897         {
 898             const wxEventTableEntry& entry = *eventEntryTable[n];
 899             if ( wxEvtHandler::ProcessEventIfMatchesId(entry, self, event) )
 900                 return true;
 901         }
 902     }
 903
 904     return false;
 905 }
 906
 907 void wxEventHashTable::InitHashTable()
 908 {
 909     // Loop over the event tables and all its base tables.
 910     const wxEventTable *table = &m_table;
 911     while (table)
 912     {
 913         // Retrieve all valid event handler entries
 914         const wxEventTableEntry *entry = table->entries;
 915         while (entry->m_fn != 0)
 916         {
 917             // Add the event entry in the Hash.
 918             AddEntry(*entry);
 919
 920             entry++;
 921         }
 922
 923         table = table->baseTable;
 924     }
 925
 926     // Lets free some memory.
 927     size_t i;
 928     for(i = 0; i < m_size; i++)
 929     {
 930         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 931         if (eTTnode)
 932         {
 933             eTTnode->eventEntryTable.Shrink();
 934         }
 935     }
 936 }
 937
 938 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 939 {
 940     // This might happen 'accidentally' as the app is exiting
 941     if (!m_eventTypeTable)
 942         return;
 943
 944     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 945     EventTypeTablePointer  eTTnode = *peTTnode;
 946
 947     if (eTTnode)
 948     {
 949         if (eTTnode->eventType != entry.m_eventType)
 950         {
 951             // Resize the table!
 952             GrowEventTypeTable();
 953             // Try again to add it.
 954             AddEntry(entry);
 955             return;
 956         }
 957     }
 958     else
 959     {
 960         eTTnode = new EventTypeTable;
 961         eTTnode->eventType = entry.m_eventType;
 962         *peTTnode = eTTnode;
 963     }
 964
 965     // Fill all hash entries between entry.m_id and entry.m_lastId...
 966     eTTnode->eventEntryTable.Add(&entry);
 967 }
 968
 969 void wxEventHashTable::AllocEventTypeTable(size_t size)
 970 {
 971     m_eventTypeTable = new EventTypeTablePointer[size];
 972     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 973     m_size = size;
 974 }
 975
 976 void wxEventHashTable::GrowEventTypeTable()
 977 {
 978     size_t oldSize = m_size;
 979     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 980
 981     // TODO: Search the most optimal grow sequence
 982     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 983
 984     for ( size_t i = 0; i < oldSize; /* */ )
 985     {
 986         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 987         if (eTToldNode)
 988         {
 989             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 990             EventTypeTablePointer  eTTnode = *peTTnode;
 991
 992             // Check for collision, we don't want any.
 993             if (eTTnode)
 994             {
 995                 GrowEventTypeTable();
 996                 continue; // Don't increment the counter,
 997                           // as we still need to add this element.
 998             }
 999             else
1000             {
1001                 // Get the old value and put it in the new table.
1002                 *peTTnode = oldEventTypeTable[i];
1003             }
1004         }
1005
1006         i++;
1007     }
1008
1009     delete[] oldEventTypeTable;
1010 }
1011
1012 // ----------------------------------------------------------------------------
1013 // wxEvtHandler
1014 // ----------------------------------------------------------------------------
1015
1016 /*
1017  * Event handler
1018  */
1019
1020 wxEvtHandler::wxEvtHandler()
1021 {
1022     m_nextHandler = NULL;
1023     m_previousHandler = NULL;
1024     m_enabled = true;
1025     m_dynamicEvents = NULL;
1026     m_pendingEvents = NULL;
1027
1028     // no client data (yet)
1029     m_clientData = NULL;
1030     m_clientDataType = wxClientData_None;
1031 }
1032
1033 wxEvtHandler::~wxEvtHandler()
1034 {
1035     // Takes itself out of the list of handlers
1036     if (m_previousHandler)
1037         m_previousHandler->m_nextHandler = m_nextHandler;
1038
1039     if (m_nextHandler)
1040         m_nextHandler->m_previousHandler = m_previousHandler;
1041
1042     if (m_dynamicEvents)
1043     {
1044         for ( wxList::iterator it = m_dynamicEvents->begin(),
1045                                end = m_dynamicEvents->end();
1046               it != end;
1047               ++it )
1048         {
1049             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1050
1051             // Remove ourselves from sink destructor notifications
1052             // (this has usually been done, in wxTrackable destructor)
1053             wxEvtHandler *eventSink = entry->m_fn->GetHandler();
1054             if ( eventSink )
1055             {
1056                 wxEventConnectionRef * const
1057                     evtConnRef = FindRefInTrackerList(eventSink);
1058                 if ( evtConnRef )
1059                 {
1060                     eventSink->RemoveNode(evtConnRef);
1061                     delete evtConnRef;
1062                 }
1063             }
1064
1065             delete entry->m_callbackUserData;
1066             delete entry;
1067         }
1068         delete m_dynamicEvents;
1069     };
1070
1071     if (m_pendingEvents)
1072         m_pendingEvents->DeleteContents(true);
1073     delete m_pendingEvents;
1074
1075     // Remove us from wxHandlersWithPendingEvents if necessary.
1076     if ( wxHandlersWithPendingEvents )
1077     {
1078 #if wxUSE_THREADS
1079         if (wxHandlersWithPendingEventsLocker)
1080             wxENTER_CRIT_SECT(*wxHandlersWithPendingEventsLocker);
1081 #endif
1082
1083         if ( wxHandlersWithPendingEvents->DeleteObject(this) )
1084         {
1085             // check that we were present only once in the list
1086             wxASSERT_MSG( !wxHandlersWithPendingEvents->Find(this),
1087                           "Handler occurs twice in wxHandlersWithPendingEvents list" );
1088         }
1089         //else: we weren't in this list at all, it's ok
1090
1091 #if wxUSE_THREADS
1092         if (wxHandlersWithPendingEventsLocker)
1093             wxLEAVE_CRIT_SECT(*wxHandlersWithPendingEventsLocker);
1094 #endif
1095     }
1096
1097     // we only delete object data, not untyped
1098     if ( m_clientDataType == wxClientData_Object )
1099         delete m_clientObject;
1100 }
1101
1102 #if wxUSE_THREADS
1103
1104 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1105 {
1106     // check that we are really in a child thread
1107     wxASSERT_MSG( !wxThread::IsMain(),
1108                   wxT("use ProcessEvent() in main thread") );
1109
1110     AddPendingEvent(event);
1111
1112     return true;
1113 }
1114
1115 #endif // wxUSE_THREADS
1116
1117 void wxEvtHandler::QueueEvent(wxEvent *event)
1118 {
1119     wxCHECK_RET( event, "NULL event can't be posted" );
1120
1121     // 1) Add this event to our list of pending events
1122     wxENTER_CRIT_SECT( m_pendingEventsLock );
1123
1124     if ( !m_pendingEvents )
1125       m_pendingEvents = new wxList;
1126
1127     m_pendingEvents->Append(event);
1128
1129     // 2) Add this event handler to list of event handlers that
1130     //    have pending events.
1131
1132     wxENTER_CRIT_SECT(*wxHandlersWithPendingEventsLocker);
1133
1134     if ( !wxHandlersWithPendingEvents )
1135         wxHandlersWithPendingEvents = new wxList;
1136     if ( !wxHandlersWithPendingEvents->Find(this) )
1137         wxHandlersWithPendingEvents->Append(this);
1138
1139     wxLEAVE_CRIT_SECT(*wxHandlersWithPendingEventsLocker);
1140
1141     // only release m_pendingEventsLock now because otherwise there is a race
1142     // condition as described in the ticket #9093: we could process the event
1143     // just added to m_pendingEvents in our ProcessPendingEvents() below before
1144     // we had time to append this pointer to wxHandlersWithPendingEvents list; thus
1145     // breaking the invariant that a handler should be in the list iff it has
1146     // any pending events to process
1147     wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1148
1149     // 3) Inform the system that new pending events are somewhere,
1150     //    and that these should be processed in idle time.
1151     wxWakeUpIdle();
1152 }
1153
1154 void wxEvtHandler::ProcessPendingEvents()
1155 {
1156     wxENTER_CRIT_SECT( m_pendingEventsLock );
1157
1158     // this method is only called by wxApp if this handler does have
1159     // pending events
1160     wxCHECK_RET( m_pendingEvents && !m_pendingEvents->IsEmpty(),
1161                  "should have pending events if called" );
1162
1163     wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1164     wxEventPtr event(static_cast<wxEvent *>(node->GetData()));
1165
1166     // it's important we remove event from list before processing it, else a
1167     // nested event loop, for example from a modal dialog, might process the
1168     // same event again.
1169     m_pendingEvents->Erase(node);
1170
1171     // if there are no more pending events left, we don't need to stay in this
1172     // list
1173     if ( m_pendingEvents->IsEmpty() )
1174     {
1175 #if wxUSE_THREADS
1176         if (wxHandlersWithPendingEventsLocker)
1177             wxENTER_CRIT_SECT(*wxHandlersWithPendingEventsLocker);
1178 #endif
1179         wxHandlersWithPendingEvents->DeleteObject(this);
1180 #if wxUSE_THREADS
1181         if (wxHandlersWithPendingEventsLocker)
1182             wxLEAVE_CRIT_SECT(*wxHandlersWithPendingEventsLocker);
1183 #endif
1184     }
1185
1186     wxLEAVE_CRIT_SECT( m_pendingEventsLock );
1187
1188     ProcessEvent(*event);
1189
1190     // careful: this object could have been deleted by the event handler
1191     // executed by the above ProcessEvent() call, so we can't access any fields
1192     // of this object any more
1193 }
1194
1195 /*
1196  * Event table stuff
1197  */
1198 /* static */ bool
1199 wxEvtHandler::ProcessEventIfMatchesId(const wxEventTableEntryBase& entry,
1200                                       wxEvtHandler *handler,
1201                                       wxEvent& event)
1202 {
1203     int tableId1 = entry.m_id,
1204         tableId2 = entry.m_lastId;
1205
1206     // match only if the event type is the same and the id is either -1 in
1207     // the event table (meaning "any") or the event id matches the id
1208     // specified in the event table either exactly or by falling into
1209     // range between first and last
1210     if ((tableId1 == wxID_ANY) ||
1211         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1212         (tableId2 != wxID_ANY &&
1213          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1214     {
1215         event.Skip(false);
1216         event.m_callbackUserData = entry.m_callbackUserData;
1217
1218 #if wxUSE_EXCEPTIONS
1219         if ( wxTheApp )
1220         {
1221             // call the handler via wxApp method which allows the user to catch
1222             // any exceptions which may be thrown by any handler in the program
1223             // in one place
1224             wxTheApp->CallEventHandler(handler, *entry.m_fn, event);
1225         }
1226         else
1227 #endif // wxUSE_EXCEPTIONS
1228         {
1229             (*entry.m_fn)(handler, event);
1230         }
1231
1232         if (!event.GetSkipped())
1233             return true;
1234     }
1235
1236     return false;
1237 }
1238
1239 bool wxEvtHandler::TryParent(wxEvent& event)
1240 {
1241     if ( GetNextHandler() )
1242     {
1243         // the next handler will pass it to wxTheApp if it doesn't process it,
1244         // so return from here to avoid doing it again
1245         return GetNextHandler()->TryParent(event);
1246     }
1247
1248     if ( wxTheApp && (this != wxTheApp) )
1249     {
1250         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1251         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1252         // processed appropriately via SearchEventTable.
1253         if ( event.GetEventType() != wxEVT_IDLE )
1254         {
1255             if ( wxTheApp->ProcessEvent(event) )
1256                 return true;
1257         }
1258     }
1259
1260     return false;
1261 }
1262
1263 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1264 {
1265     // allow the application to hook into event processing
1266     if ( wxTheApp )
1267     {
1268         int rc = wxTheApp->FilterEvent(event);
1269         if ( rc != -1 )
1270         {
1271             wxASSERT_MSG( rc == 1 || rc == 0,
1272                           _T("unexpected wxApp::FilterEvent return value") );
1273
1274             return rc != 0;
1275         }
1276         //else: proceed normally
1277     }
1278
1279     if ( ProcessEventHere(event) )
1280         return true;
1281
1282     // propagate the event upwards the window chain and/or to the application
1283     // object if it wasn't processed at this level
1284     return TryParent(event);
1285 }
1286
1287 bool wxEvtHandler::ProcessEventHere(wxEvent& event)
1288 {
1289     // An event handler can be enabled or disabled
1290     if ( GetEvtHandlerEnabled() )
1291     {
1292         // if we have a validator, it has higher priority than our own event
1293         // table
1294         if ( TryValidator(event) )
1295             return true;
1296
1297         // Handle per-instance dynamic event tables first
1298         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1299             return true;
1300
1301         // Then static per-class event tables
1302         if ( GetEventHashTable().HandleEvent(event, this) )
1303             return true;
1304     }
1305
1306     // Try going down the event handler chain
1307     if ( GetNextHandler() && GetNextHandler()->ProcessEventHere(event) )
1308         return true;
1309
1310     // We don't have a handler for this event.
1311     return false;
1312 }
1313
1314 bool wxEvtHandler::SafelyProcessEvent(wxEvent& event)
1315 {
1316 #if wxUSE_EXCEPTIONS
1317     try
1318     {
1319 #endif
1320         return ProcessEvent(event);
1321 #if wxUSE_EXCEPTIONS
1322     }
1323     catch ( ... )
1324     {
1325         wxEventLoopBase *loop = wxEventLoopBase::GetActive();
1326         try
1327         {
1328             if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() )
1329             {
1330                 if ( loop )
1331                     loop->Exit();
1332             }
1333             //else: continue running current event loop
1334
1335             return false;
1336         }
1337         catch ( ... )
1338         {
1339             // OnExceptionInMainLoop() threw, possibly rethrowing the same
1340             // exception again: very good, but we still need Exit() to
1341             // be called
1342             if ( loop )
1343                 loop->Exit();
1344             throw;
1345         }
1346     }
1347 #endif // wxUSE_EXCEPTIONS
1348 }
1349
1350
1351 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1352 {
1353     const wxEventType eventType = event.GetEventType();
1354     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1355     {
1356         const wxEventTableEntry& entry = table.entries[i];
1357         if ( eventType == entry.m_eventType )
1358         {
1359             if ( ProcessEventIfMatchesId(entry, this, event) )
1360                 return true;
1361         }
1362     }
1363
1364     return false;
1365 }
1366
1367 void wxEvtHandler::Subscribe( int id, int lastId,
1368                             wxEventType eventType,
1369                             wxEventFunctor *func,
1370                             wxObject *userData )
1371 {
1372     wxDynamicEventTableEntry *entry =
1373         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
1374
1375     if (!m_dynamicEvents)
1376         m_dynamicEvents = new wxList;
1377
1378     // Insert at the front of the list so most recent additions are found first
1379     m_dynamicEvents->Insert( (wxObject*) entry );
1380
1381     // Make sure we get to know when a sink is destroyed
1382     wxEvtHandler *eventSink = func->GetHandler();
1383     if ( eventSink && eventSink != this )
1384     {
1385         wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1386         if ( evtConnRef )
1387             evtConnRef->IncRef( );
1388         else
1389             new wxEventConnectionRef(this, eventSink);
1390     }
1391 }
1392
1393 bool
1394 wxEvtHandler::Unsubscribe(int id,
1395                           int lastId,
1396                           wxEventType eventType,
1397                           const wxEventFunctor& func,
1398                           wxObject *userData)
1399 {
1400     if (!m_dynamicEvents)
1401         return false;
1402
1403     // Remove connection from tracker node (wxEventConnectionRef)
1404     wxEvtHandler *eventSink = func.GetHandler();
1405     if ( eventSink && eventSink != this )
1406     {
1407         wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1408         if ( evtConnRef )
1409             evtConnRef->DecRef();
1410     }
1411
1412     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1413     while (node)
1414     {
1415         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1416
1417         if ((entry->m_id == id) &&
1418             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1419             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1420             entry->m_fn->Matches(func) &&
1421             ((entry->m_callbackUserData == userData) || !userData))
1422         {
1423             delete entry->m_callbackUserData;
1424             m_dynamicEvents->Erase( node );
1425             delete entry;
1426             return true;
1427         }
1428         node = node->GetNext();
1429     }
1430     return false;
1431 }
1432
1433 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1434 {
1435     wxCHECK_MSG( m_dynamicEvents, false,
1436                  wxT("caller should check that we have dynamic events") );
1437
1438     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1439     while (node)
1440     {
1441         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1442
1443         // get next node before (maybe) calling the event handler as it could
1444         // call Disconnect() invalidating the current node
1445         node = node->GetNext();
1446
1447         if ( event.GetEventType() == entry->m_eventType )
1448         {
1449             wxEvtHandler *handler = entry->m_fn->GetHandler();
1450             if ( !handler )
1451                handler = this;
1452             if ( ProcessEventIfMatchesId(*entry, handler, event) )
1453                 return true;
1454         }
1455     }
1456
1457     return false;
1458 }
1459
1460 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1461 {
1462     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1463                   wxT("can't have both object and void client data") );
1464
1465     if ( m_clientObject )
1466         delete m_clientObject;
1467
1468     m_clientObject = data;
1469     m_clientDataType = wxClientData_Object;
1470 }
1471
1472 wxClientData *wxEvtHandler::DoGetClientObject() const
1473 {
1474     // it's not an error to call GetClientObject() on a window which doesn't
1475     // have client data at all - NULL will be returned
1476     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1477                   wxT("this window doesn't have object client data") );
1478
1479     return m_clientObject;
1480 }
1481
1482 void wxEvtHandler::DoSetClientData( void *data )
1483 {
1484     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1485                   wxT("can't have both object and void client data") );
1486
1487     m_clientData = data;
1488     m_clientDataType = wxClientData_Void;
1489 }
1490
1491 void *wxEvtHandler::DoGetClientData() const
1492 {
1493     // it's not an error to call GetClientData() on a window which doesn't have
1494     // client data at all - NULL will be returned
1495     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1496                   wxT("this window doesn't have void client data") );
1497
1498     return m_clientData;
1499 }
1500
1501 // A helper to find an wxEventConnectionRef object
1502 wxEventConnectionRef *
1503 wxEvtHandler::FindRefInTrackerList(wxEvtHandler *eventSink)
1504 {
1505     for ( wxTrackerNode *node = eventSink->GetFirst(); node; node = node->m_nxt )
1506     {
1507         // we only want wxEventConnectionRef nodes here
1508         wxEventConnectionRef *evtConnRef = node->ToEventConnection();
1509         if ( evtConnRef && evtConnRef->m_src == this )
1510         {
1511             wxASSERT( evtConnRef->m_sink==eventSink );
1512             return evtConnRef;
1513         }
1514     }
1515
1516     return NULL;
1517 }
1518
1519 void wxEvtHandler::OnSinkDestroyed( wxEvtHandler *sink )
1520 {
1521     wxASSERT(m_dynamicEvents);
1522
1523     // remove all connections with this sink
1524     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(), node_nxt;
1525     while (node)
1526     {
1527         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1528         node_nxt = node->GetNext();
1529
1530         if ( entry->m_fn->GetHandler() == sink )
1531         {
1532             delete entry->m_callbackUserData;
1533             m_dynamicEvents->Erase( node );
1534             delete entry;
1535         }
1536         node = node_nxt;
1537     }
1538 }
1539
1540 #endif // wxUSE_BASE
1541
1542 #if wxUSE_GUI
1543
1544 // Find a window with the focus, that is also a descendant of the given window.
1545 // This is used to determine the window to initially send commands to.
1546 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1547 {
1548     // Process events starting with the window with the focus, if any.
1549     wxWindow* focusWin = wxWindow::FindFocus();
1550     wxWindow* win = focusWin;
1551
1552     // Check if this is a descendant of this frame.
1553     // If not, win will be set to NULL.
1554     while (win)
1555     {
1556         if (win == ancestor)
1557             break;
1558         else
1559             win = win->GetParent();
1560     }
1561     if (win == NULL)
1562         focusWin = NULL;
1563
1564     return focusWin;
1565 }
1566
1567 // ----------------------------------------------------------------------------
1568 // wxEventBlocker
1569 // ----------------------------------------------------------------------------
1570
1571 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1572 {
1573     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1574
1575     m_window = win;
1576
1577     Block(type);
1578     m_window->PushEventHandler(this);
1579 }
1580
1581 wxEventBlocker::~wxEventBlocker()
1582 {
1583     wxEvtHandler *popped = m_window->PopEventHandler(false);
1584     wxCHECK_RET(popped == this,
1585         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1586 }
1587
1588 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1589 {
1590     // should this event be blocked?
1591     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1592     {
1593         wxEventType t = (wxEventType)m_eventsToBlock[i];
1594         if ( t == wxEVT_ANY || t == event.GetEventType() )
1595             return true;   // yes, it should: mark this event as processed
1596     }
1597
1598     return false;
1599 }
1600
1601 #endif // wxUSE_GUI
1602