src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        event.cpp
   3 // Purpose:     Event classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "event.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/defs.h"
  33     #include "wx/app.h"
  34     #include "wx/list.h"
  35
  36     #if wxUSE_GUI
  37         #include "wx/control.h"
  38         #include "wx/utils.h"
  39         #include "wx/dc.h"
  40     #endif // wxUSE_GUI
  41 #endif
  42
  43 #include "wx/event.h"
  44
  45 #if wxUSE_GUI
  46     #include "wx/validate.h"
  47 #if wxUSE_STOPWATCH
  48     #include "wx/stopwatch.h"
  49 #endif
  50 #endif // wxUSE_GUI
  51
  52 // ----------------------------------------------------------------------------
  53 // wxWin macros
  54 // ----------------------------------------------------------------------------
  55
  56 #if wxUSE_BASE
  57     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  58     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  59 #endif // wxUSE_BASE
  60
  61 #if wxUSE_GUI
  62     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  94     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  95     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  96     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  97 #endif // wxUSE_GUI
  98
  99 #if wxUSE_BASE
 100
 101 const wxEventTable *wxEvtHandler::GetEventTable() const
 102     { return &wxEvtHandler::sm_eventTable; }
 103
 104 const wxEventTable wxEvtHandler::sm_eventTable =
 105     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 106
 107 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 108     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 109
 110 // ----------------------------------------------------------------------------
 111 // global variables
 112 // ----------------------------------------------------------------------------
 113
 114 // To put pending event handlers
 115 wxList *wxPendingEvents = (wxList *)NULL;
 116
 117 #if wxUSE_THREADS
 118     // protects wxPendingEvents list
 119     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 120 #endif
 121
 122 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 123
 124 // common event types are defined here, other event types are defined by the
 125 // components which use them
 126
 127 const wxEventType wxEVT_FIRST = 10000;
 128 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 129
 130 DEFINE_EVENT_TYPE(wxEVT_NULL)
 131 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 132 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 133
 134 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 135
 136 #endif // wxUSE_BASE
 137
 138 #if wxUSE_GUI
 139
 140 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 141
 142 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 143 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 144 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 145 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 146 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 147 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 148 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 149 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 150 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 151 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 152 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 153 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 154 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 155 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 156 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 157 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 158
 159 // Sockets and timers send events, too
 160 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 161
 162 // Mouse event types
 163 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 164 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 165 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 166 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 167 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 168 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 169 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 170 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 171 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 172 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 173 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 174 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 175 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 176 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 177 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 178 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 179
 180 // Non-client mouse events
 181 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 182 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 183 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 184 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 185 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 186 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 187 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 188 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 189 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 190 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 191 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 192 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 193
 194 // Character input event type
 195 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 196 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 197 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 198 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 199 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 200
 201 // Set cursor event
 202 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 203
 204 // wxScrollbar and wxSlider event identifiers
 205 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 206 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 207 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 208 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 209 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 210 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 211 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 212 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 213 DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL)
 214
 215 // Scroll events from wxWindow
 216 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 217 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 218 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 219 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 220 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 221 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 222 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 223 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 224
 225 // System events
 226 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 227 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 228 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 229 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 230 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 231 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 232 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 233 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 234 DEFINE_EVENT_TYPE(wxEVT_POWER)
 235 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 236 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 237 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 238 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 239 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 240 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 241 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 242 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 243 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 244 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 245 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 246 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 247 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 248 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 249 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 250 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 251 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 252 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 253 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 254 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 255 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 256 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 257 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 258 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 259 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 260 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 261 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 262 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 263 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 264 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 265
 266 // Generic command events
 267 // Note: a click is a higher-level event than button down/up
 268 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 269 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 270 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 271 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 272 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 273 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 274 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 275
 276 // Help events
 277 DEFINE_EVENT_TYPE(wxEVT_HELP)
 278 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 279
 280 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 281
 282 #endif // wxUSE_GUI
 283
 284 #if wxUSE_BASE
 285
 286 // ============================================================================
 287 // implementation
 288 // ============================================================================
 289
 290 // ----------------------------------------------------------------------------
 291 // event initialization
 292 // ----------------------------------------------------------------------------
 293
 294 int wxNewEventType()
 295 {
 296     // MT-FIXME
 297     static int s_lastUsedEventType = wxEVT_FIRST;
 298
 299 #if WXWIN_COMPATIBILITY_2
 300     // check that we don't overlap with the user-defined types: if it does
 301     // happen, the best solution is probably to update the existing code to
 302     // use wxNewEventType() instead of wxEVT_USER_FIRST
 303     //
 304     // due to the uncertainty
 305     wxASSERT_MSG( s_lastUsedEventType < wxEVT_USER_FIRST - 1,
 306                   _T("possible event type conflict") );
 307 #endif // WXWIN_COMPATIBILITY_2
 308
 309     return s_lastUsedEventType++;
 310 }
 311
 312 // ----------------------------------------------------------------------------
 313 // wxEvent
 314 // ----------------------------------------------------------------------------
 315
 316 /*
 317  * General wxWindows events, covering
 318  * all interesting things that might happen (button clicking, resizing,
 319  * setting text in widgets, etc.).
 320  *
 321  * For each completely new event type, derive a new event class.
 322  *
 323  */
 324
 325 wxEvent::wxEvent(int theId, wxEventType commandType )
 326 {
 327     m_eventType = commandType;
 328     m_eventObject = (wxObject *) NULL;
 329     m_timeStamp = 0;
 330     m_id = theId;
 331     m_skipped = FALSE;
 332     m_callbackUserData = (wxObject *) NULL;
 333     m_isCommandEvent = FALSE;
 334 }
 335
 336 wxEvent::wxEvent(const wxEvent &src)
 337     : wxObject()
 338     , m_eventObject(src.m_eventObject)
 339     , m_eventType(src.m_eventType)
 340     , m_timeStamp(src.m_timeStamp)
 341     , m_id(src.m_id)
 342     , m_callbackUserData(src.m_callbackUserData)
 343     , m_skipped(src.m_skipped)
 344     , m_isCommandEvent(src.m_isCommandEvent)
 345 {
 346 }
 347
 348 #endif // wxUSE_BASE
 349
 350 #if wxUSE_GUI
 351
 352 /*
 353  * Command events
 354  *
 355  */
 356
 357 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 358   : wxEvent(theId, commandType)
 359 {
 360     m_clientData = (char *) NULL;
 361     m_clientObject = (wxClientData *) NULL;
 362     m_extraLong = 0;
 363     m_commandInt = 0;
 364     m_commandString = wxEmptyString;
 365     m_isCommandEvent = TRUE;
 366 }
 367
 368 /*
 369  * UI update events
 370  */
 371
 372 #if wxUSE_LONGLONG
 373 wxLongLong wxUpdateUIEvent::m_lastUpdate = 0;
 374 #endif
 375
 376 long wxUpdateUIEvent::m_updateInterval = 0;
 377
 378 // Can we update?
 379 bool wxUpdateUIEvent::CanUpdate()
 380 {
 381     if (m_updateInterval == -1)
 382         return FALSE;
 383     else if (m_updateInterval == 0)
 384         return TRUE;
 385     else
 386     {
 387 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 388         wxLongLong now = wxGetLocalTimeMillis();
 389         if (now > (m_lastUpdate + m_updateInterval))
 390         {
 391             return TRUE;
 392         }
 393 #else
 394         // If we don't have wxStopWatch or wxLongLong, we
 395         // should err on the safe side and update now anyway.
 396         return TRUE;
 397 #endif
 398     }
 399     return FALSE;
 400 }
 401
 402 // Reset the update time to provide a delay until the next
 403 // time we should update
 404 void wxUpdateUIEvent::ResetUpdateTime()
 405 {
 406 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 407     if (m_updateInterval > 0)
 408     {
 409         wxLongLong now = wxGetLocalTimeMillis();
 410         if (now > (m_lastUpdate + m_updateInterval))
 411         {
 412             m_lastUpdate = now;
 413         }
 414     }
 415 #endif
 416 }
 417
 418
 419 /*
 420  * Scroll events
 421  */
 422
 423 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 424                              int id,
 425                              int pos,
 426                              int orient)
 427     : wxCommandEvent(commandType, id)
 428 {
 429     m_extraLong = orient;
 430     m_commandInt = pos;
 431 }
 432
 433 /*
 434  * ScrollWin events
 435  */
 436
 437 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 438                                    int pos,
 439                                    int orient)
 440 {
 441     m_eventType = commandType;
 442     m_extraLong = orient;
 443     m_commandInt = pos;
 444 }
 445
 446 /*
 447  * Mouse events
 448  *
 449  */
 450
 451 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 452 {
 453     m_eventType = commandType;
 454     m_metaDown = FALSE;
 455     m_altDown = FALSE;
 456     m_controlDown = FALSE;
 457     m_shiftDown = FALSE;
 458     m_leftDown = FALSE;
 459     m_rightDown = FALSE;
 460     m_middleDown = FALSE;
 461     m_x = 0;
 462     m_y = 0;
 463     m_wheelRotation = 0;
 464     m_wheelDelta = 0;
 465     m_linesPerAction = 0;
 466 }
 467
 468 void wxMouseEvent::Assign(const wxMouseEvent& event)
 469 {
 470     m_eventType = event.m_eventType;
 471
 472     m_x = event.m_x;
 473     m_y = event.m_y;
 474
 475     m_leftDown = event.m_leftDown;
 476     m_middleDown = event.m_middleDown;
 477     m_rightDown = event.m_rightDown;
 478
 479     m_controlDown = event.m_controlDown;
 480     m_shiftDown = event.m_shiftDown;
 481     m_altDown = event.m_altDown;
 482     m_metaDown = event.m_metaDown;
 483
 484     m_wheelRotation = event.m_wheelRotation;
 485     m_wheelDelta = event.m_wheelDelta;
 486     m_linesPerAction = event.m_linesPerAction;
 487 }
 488
 489 // True if was a button dclick event (1 = left, 2 = middle, 3 = right)
 490 // or any button dclick event (but = -1)
 491 bool wxMouseEvent::ButtonDClick(int but) const
 492 {
 493     switch (but)
 494     {
 495         case -1:
 496             return (LeftDClick() || MiddleDClick() || RightDClick());
 497         case 1:
 498             return LeftDClick();
 499         case 2:
 500             return MiddleDClick();
 501         case 3:
 502             return RightDClick();
 503         default:
 504             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 505     }
 506
 507     return FALSE;
 508 }
 509
 510 // True if was a button down event (1 = left, 2 = middle, 3 = right)
 511 // or any button down event (but = -1)
 512 bool wxMouseEvent::ButtonDown(int but) const
 513 {
 514     switch (but)
 515     {
 516         case -1:
 517             return (LeftDown() || MiddleDown() || RightDown());
 518         case 1:
 519             return LeftDown();
 520         case 2:
 521             return MiddleDown();
 522         case 3:
 523             return RightDown();
 524         default:
 525             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 526     }
 527
 528     return FALSE;
 529 }
 530
 531 // True if was a button up event (1 = left, 2 = middle, 3 = right)
 532 // or any button up event (but = -1)
 533 bool wxMouseEvent::ButtonUp(int but) const
 534 {
 535     switch (but)
 536     {
 537         case -1:
 538             return (LeftUp() || MiddleUp() || RightUp());
 539         case 1:
 540             return LeftUp();
 541         case 2:
 542             return MiddleUp();
 543         case 3:
 544             return RightUp();
 545         default:
 546             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 547     }
 548
 549     return FALSE;
 550 }
 551
 552 // True if the given button is currently changing state
 553 bool wxMouseEvent::Button(int but) const
 554 {
 555     switch (but)
 556     {
 557         case -1:
 558             return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1));
 559         case 1:
 560             return (LeftDown() || LeftUp() || LeftDClick());
 561         case 2:
 562             return (MiddleDown() || MiddleUp() || MiddleDClick());
 563         case 3:
 564             return (RightDown() || RightUp() || RightDClick());
 565         default:
 566             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 567     }
 568
 569     return FALSE;
 570 }
 571
 572 bool wxMouseEvent::ButtonIsDown(int but) const
 573 {
 574     switch (but)
 575     {
 576         case -1:
 577             return (LeftIsDown() || MiddleIsDown() || RightIsDown());
 578         case 1:
 579             return LeftIsDown();
 580         case 2:
 581             return MiddleIsDown();
 582         case 3:
 583             return RightIsDown();
 584         default:
 585             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 586     }
 587
 588     return FALSE;
 589 }
 590
 591 int wxMouseEvent::GetButton() const
 592 {
 593     for ( int i = 1; i <= 3; i++ )
 594     {
 595         if ( Button(i) )
 596         {
 597             return i;
 598         }
 599     }
 600
 601     return -1;
 602 }
 603
 604 // Find the logical position of the event given the DC
 605 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 606 {
 607     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 608     return pt;
 609 }
 610
 611
 612 /*
 613  * Keyboard event
 614  *
 615  */
 616
 617 wxKeyEvent::wxKeyEvent(wxEventType type)
 618 {
 619     m_eventType = type;
 620     m_shiftDown = FALSE;
 621     m_controlDown = FALSE;
 622     m_metaDown = FALSE;
 623     m_altDown = FALSE;
 624     m_keyCode = 0;
 625     m_scanCode = 0;
 626 #if wxUSE_UNICODE
 627     m_uniChar = 0;
 628 #endif
 629 }
 630
 631 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 632     : wxEvent(evt)
 633 {
 634     m_x = evt.m_x;
 635     m_y = evt.m_y;
 636
 637     m_keyCode = evt.m_keyCode;
 638
 639     m_controlDown = evt.m_controlDown;
 640     m_shiftDown = evt.m_shiftDown;
 641     m_altDown = evt.m_altDown;
 642     m_metaDown = evt.m_metaDown;
 643     m_scanCode = evt.m_scanCode;
 644     m_rawCode = evt.m_rawCode;
 645     m_rawFlags = evt.m_rawFlags;
 646
 647 #if wxUSE_UNICODE
 648     m_uniChar = evt.m_uniChar;
 649 #endif
 650 }
 651
 652 long wxKeyEvent::KeyCode() const
 653 {
 654     return m_keyCode;
 655 }
 656
 657 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 658 {
 659     SetEventType(wxEVT_CREATE);
 660     SetEventObject(win);
 661 }
 662
 663 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 664 {
 665     SetEventType(wxEVT_DESTROY);
 666     SetEventObject(win);
 667 }
 668
 669 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 670                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 671 {
 672     SetEventObject(win);
 673 }
 674
 675 #endif // wxUSE_GUI
 676
 677 // ----------------------------------------------------------------------------
 678 // wxEvtHandler
 679 // ----------------------------------------------------------------------------
 680
 681 #if wxUSE_BASE
 682
 683 /*
 684  * Event handler
 685  */
 686
 687 wxEvtHandler::wxEvtHandler()
 688 {
 689     m_nextHandler = (wxEvtHandler *) NULL;
 690     m_previousHandler = (wxEvtHandler *) NULL;
 691     m_enabled = TRUE;
 692     m_dynamicEvents = (wxList *) NULL;
 693     m_pendingEvents = (wxList *) NULL;
 694 #if wxUSE_THREADS
 695 #  if !defined(__VISAGECPP__)
 696     m_eventsLocker = new wxCriticalSection;
 697 #  endif
 698 #endif
 699     // no client data (yet)
 700     m_clientData = NULL;
 701     m_clientDataType = wxClientData_None;
 702 }
 703
 704 wxEvtHandler::~wxEvtHandler()
 705 {
 706     // Takes itself out of the list of handlers
 707     if (m_previousHandler)
 708         m_previousHandler->m_nextHandler = m_nextHandler;
 709
 710     if (m_nextHandler)
 711         m_nextHandler->m_previousHandler = m_previousHandler;
 712
 713     if (m_dynamicEvents)
 714     {
 715         wxNode *node = m_dynamicEvents->GetFirst();
 716         while (node)
 717         {
 718 #if WXWIN_COMPATIBILITY_EVENT_TYPES
 719             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
 720 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
 721             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
 722 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
 723
 724             if (entry->m_callbackUserData)
 725                 delete entry->m_callbackUserData;
 726             delete entry;
 727             node = node->GetNext();
 728         }
 729         delete m_dynamicEvents;
 730     };
 731
 732     delete m_pendingEvents;
 733
 734 #if wxUSE_THREADS
 735 #  if !defined(__VISAGECPP__)
 736     delete m_eventsLocker;
 737 #  endif
 738
 739     // Remove us from wxPendingEvents if necessary.
 740     if(wxPendingEventsLocker)
 741         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
 742     if ( wxPendingEvents ) {
 743         wxPendingEvents->DeleteObject(this);
 744     }
 745     if(wxPendingEventsLocker)
 746         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
 747 #endif
 748
 749     // we only delete object data, not untyped
 750     if ( m_clientDataType == wxClientData_Object )
 751         delete m_clientObject;
 752 }
 753
 754 #if wxUSE_THREADS
 755
 756 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
 757 {
 758     // check that we are really in a child thread
 759     wxASSERT_MSG( !wxThread::IsMain(),
 760                   wxT("use ProcessEvent() in main thread") );
 761
 762     AddPendingEvent(event);
 763
 764     return TRUE;
 765 }
 766
 767 #endif // wxUSE_THREADS
 768
 769 void wxEvtHandler::AddPendingEvent(wxEvent& event)
 770 {
 771     // 1) Add event to list of pending events of this event handler
 772
 773     wxEvent *eventCopy = event.Clone();
 774
 775     // we must be able to copy the events here so the event class must
 776     // implement Clone() properly instead of just providing a NULL stab for it
 777     wxCHECK_RET( eventCopy,
 778                  _T("events of this type aren't supposed to be posted") );
 779
 780 #if defined(__VISAGECPP__)
 781     wxENTER_CRIT_SECT( m_eventsLocker);
 782 #else
 783     wxENTER_CRIT_SECT( *m_eventsLocker);
 784 #endif
 785
 786     if ( !m_pendingEvents )
 787       m_pendingEvents = new wxList;
 788
 789     m_pendingEvents->Append(eventCopy);
 790
 791 #if defined(__VISAGECPP__)
 792     wxLEAVE_CRIT_SECT( m_eventsLocker);
 793 #else
 794     wxLEAVE_CRIT_SECT( *m_eventsLocker);
 795 #endif
 796
 797     // 2) Add this event handler to list of event handlers that
 798     //    have pending events.
 799
 800     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
 801
 802     if ( !wxPendingEvents )
 803         wxPendingEvents = new wxList;
 804     wxPendingEvents->Append(this);
 805
 806     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
 807
 808     // 3) Inform the system that new pending events are somwehere,
 809     //    and that these should be processed in idle time.
 810     wxWakeUpIdle();
 811 }
 812
 813 void wxEvtHandler::ProcessPendingEvents()
 814 {
 815 #if defined(__VISAGECPP__)
 816     wxENTER_CRIT_SECT( m_eventsLocker);
 817 #else
 818     wxENTER_CRIT_SECT( *m_eventsLocker);
 819 #endif
 820
 821     wxNode *node = m_pendingEvents->GetFirst();
 822     while ( node )
 823     {
 824         wxEvent *event = (wxEvent *)node->GetData();
 825         delete node;
 826
 827         // In ProcessEvent, new events might get added and
 828         // we can safely leave the crtical section here.
 829 #if defined(__VISAGECPP__)
 830         wxLEAVE_CRIT_SECT( m_eventsLocker);
 831 #else
 832         wxLEAVE_CRIT_SECT( *m_eventsLocker);
 833 #endif
 834         ProcessEvent(*event);
 835         delete event;
 836 #if defined(__VISAGECPP__)
 837         wxENTER_CRIT_SECT( m_eventsLocker);
 838 #else
 839         wxENTER_CRIT_SECT( *m_eventsLocker);
 840 #endif
 841
 842         node = m_pendingEvents->GetFirst();
 843     }
 844
 845 #if defined(__VISAGECPP__)
 846     wxLEAVE_CRIT_SECT( m_eventsLocker);
 847 #else
 848     wxLEAVE_CRIT_SECT( *m_eventsLocker);
 849 #endif
 850 }
 851
 852 /*
 853  * Event table stuff
 854  */
 855
 856 bool wxEvtHandler::TryParent(wxEvent& event)
 857 {
 858     if ( wxTheApp && (this != wxTheApp) )
 859     {
 860         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
 861         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
 862         // processed appropriately via SearchEventTable.
 863         if ( event.GetEventType() != wxEVT_IDLE )
 864         {
 865             if ( wxTheApp->ProcessEvent(event) )
 866                 return TRUE;
 867         }
 868     }
 869
 870     return FALSE;
 871 }
 872
 873 bool wxEvtHandler::ProcessEvent(wxEvent& event)
 874 {
 875     // allow the application to hook into event processing
 876     if ( wxTheApp )
 877     {
 878         int rc = wxTheApp->FilterEvent(event);
 879         if ( rc != -1 )
 880         {
 881             wxASSERT_MSG( rc == 1 || rc == 0,
 882                           _T("unexpected wxApp::FilterEvent return value") );
 883
 884             return rc != 0;
 885         }
 886         //else: proceed normally
 887     }
 888
 889     // An event handler can be enabled or disabled
 890     if ( GetEvtHandlerEnabled() )
 891     {
 892         // if we have a validator, it has higher priority than our own event
 893         // table
 894 #if wxUSE_VALIDATORS
 895         if ( TryValidator(event) )
 896             return TRUE;
 897 #endif // wxUSE_VALIDATORS
 898
 899         // Handle per-instance dynamic event tables first
 900         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
 901             return TRUE;
 902
 903         // Then static per-class event tables (and search upwards through the
 904         // inheritance hierarchy)
 905         for ( const wxEventTable *table = GetEventTable();
 906               table;
 907               table = table->baseTable )
 908         {
 909             if ( SearchEventTable((wxEventTable&)*table, event) )
 910                 return TRUE;
 911         }
 912     }
 913
 914     // Try going down the event handler chain
 915     if ( GetNextHandler() )
 916     {
 917         if ( GetNextHandler()->ProcessEvent(event) )
 918             return TRUE;
 919     }
 920
 921     // Finally propagate the event upwards the window chain and/or to the
 922     // application object as necessary
 923     return TryParent(event);
 924 }
 925
 926 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
 927 {
 928     wxEventType eventType = event.GetEventType();
 929     int eventId = event.GetId();
 930
 931     // BC++ doesn't like testing for m_fn without != 0
 932     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
 933     {
 934         // the line using reference exposes a bug in gcc: although it _seems_
 935         // to work, it leads to weird crashes later on during program
 936         // execution
 937 #ifdef __GNUG__
 938         wxEventTableEntry entry = table.entries[i];
 939 #else
 940         const wxEventTableEntry& entry = table.entries[i];
 941 #endif
 942
 943         // match only if the event type is the same and the id is either -1 in
 944         // the event table (meaning "any") or the event id matches the id
 945         // specified in the event table either exactly or by falling into
 946         // range between first and last
 947         if ( eventType == entry.m_eventType )
 948         {
 949             int tableId1 = entry.m_id,
 950                 tableId2 = entry.m_lastId;
 951
 952             if ( (tableId1 == -1) ||
 953                  (tableId2 == -1 && eventId == tableId1) ||
 954                  (tableId2 != -1 &&
 955                     (eventId >= tableId1 && eventId <= tableId2)) )
 956             {
 957                 event.Skip(FALSE);
 958                 event.m_callbackUserData = entry.m_callbackUserData;
 959
 960                 (this->*((wxEventFunction) (entry.m_fn)))(event);
 961
 962                 return !event.GetSkipped();
 963             }
 964         }
 965     }
 966
 967     return FALSE;
 968 }
 969
 970 void wxEvtHandler::Connect( int id, int lastId,
 971                             int eventType,
 972                             wxObjectEventFunction func,
 973                             wxObject *userData,
 974                             wxEvtHandler* eventSink )
 975 {
 976 #if WXWIN_COMPATIBILITY_EVENT_TYPES
 977     wxEventTableEntry *entry = new wxEventTableEntry;
 978     entry->m_eventType = eventType;
 979     entry->m_id = id;
 980     entry->m_lastId = lastId;
 981     entry->m_fn = func;
 982     entry->m_callbackUserData = userData;
 983 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
 984     wxDynamicEventTableEntry *entry =
 985         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
 986 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
 987
 988     if (!m_dynamicEvents)
 989         m_dynamicEvents = new wxList;
 990
 991     // Insert at the front of the list so most recent additions are found first
 992     m_dynamicEvents->Insert( (wxObject*) entry );
 993 }
 994
 995 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
 996                   wxObjectEventFunction func,
 997                   wxObject *userData,
 998                   wxEvtHandler* eventSink )
 999 {
1000     if (!m_dynamicEvents)
1001         return FALSE;
1002
1003     wxNode *node = m_dynamicEvents->GetFirst();
1004     while (node)
1005     {
1006 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1007             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1008 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1009             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1010 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1011
1012         if ((entry->m_id == id) &&
1013             ((entry->m_lastId == lastId) || (lastId == -1)) &&
1014             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1015             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1016             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1017             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1018         {
1019             if (entry->m_callbackUserData)
1020                 delete entry->m_callbackUserData;
1021             m_dynamicEvents->DeleteNode( node );
1022             delete entry;
1023             return TRUE;
1024         }
1025         node = node->GetNext();
1026     }
1027     return FALSE;
1028 }
1029
1030 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1031 {
1032     wxCHECK_MSG( m_dynamicEvents, FALSE,
1033                  wxT("caller should check that we have dynamic events") );
1034
1035     int commandId = event.GetId();
1036
1037     wxNode *node = m_dynamicEvents->GetFirst();
1038     while (node)
1039     {
1040 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1041             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1042 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1043             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1044 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1045
1046         if (entry->m_fn)
1047         {
1048             // Match, if event spec says any id will do (id == -1)
1049             if ( (event.GetEventType() == entry->m_eventType) &&
1050                  (entry->m_id == -1 ||
1051                   (entry->m_lastId == -1 && commandId == entry->m_id) ||
1052                   (entry->m_lastId != -1 &&
1053                   (commandId >= entry->m_id && commandId <= entry->m_lastId))) )
1054             {
1055                 event.Skip(FALSE);
1056                 event.m_callbackUserData = entry->m_callbackUserData;
1057
1058 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1059                 if (entry->m_eventSink)
1060                     ((entry->m_eventSink)->*((wxEventFunction) (entry->m_fn)))(event);
1061                 else
1062 #endif
1063                     (this->*((wxEventFunction) (entry->m_fn)))(event);
1064
1065                 if ( ! event.GetSkipped() )
1066                     return TRUE;
1067             }
1068         }
1069         node = node->GetNext();
1070     }
1071     return FALSE;
1072 };
1073
1074 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1075 {
1076     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1077                   wxT("can't have both object and void client data") );
1078
1079     if ( m_clientObject )
1080         delete m_clientObject;
1081
1082     m_clientObject = data;
1083     m_clientDataType = wxClientData_Object;
1084 }
1085
1086 wxClientData *wxEvtHandler::DoGetClientObject() const
1087 {
1088     // it's not an error to call GetClientObject() on a window which doesn't
1089     // have client data at all - NULL will be returned
1090     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1091                   wxT("this window doesn't have object client data") );
1092
1093     return m_clientObject;
1094 }
1095
1096 void wxEvtHandler::DoSetClientData( void *data )
1097 {
1098     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1099                   wxT("can't have both object and void client data") );
1100
1101     m_clientData = data;
1102     m_clientDataType = wxClientData_Void;
1103 }
1104
1105 void *wxEvtHandler::DoGetClientData() const
1106 {
1107     // it's not an error to call GetClientData() on a window which doesn't have
1108     // client data at all - NULL will be returned
1109     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1110                   wxT("this window doesn't have void client data") );
1111
1112     return m_clientData;
1113 }
1114
1115
1116 #if WXWIN_COMPATIBILITY
1117 bool wxEvtHandler::OnClose()
1118 {
1119     if (GetNextHandler())
1120         return GetNextHandler()->OnClose();
1121     else
1122         return FALSE;
1123 }
1124 #endif // WXWIN_COMPATIBILITY
1125
1126 #endif // wxUSE_BASE
1127
1128 #if wxUSE_GUI
1129
1130 // Find a window with the focus, that is also a descendant of the given window.
1131 // This is used to determine the window to initially send commands to.
1132 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1133 {
1134     // Process events starting with the window with the focus, if any.
1135     wxWindow* focusWin = wxWindow::FindFocus();
1136     wxWindow* win = focusWin;
1137
1138     // Check if this is a descendant of this frame.
1139     // If not, win will be set to NULL.
1140     while (win)
1141     {
1142         if (win == ancestor)
1143             break;
1144         else
1145             win = win->GetParent();
1146     }
1147     if (win == (wxWindow*) NULL)
1148         focusWin = (wxWindow*) NULL;
1149
1150     return focusWin;
1151 }
1152
1153 #endif // wxUSE_GUI