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 and Markus Holzem
   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 #endif // wxUSE_GUI
  48
  49 // ----------------------------------------------------------------------------
  50 // wxWin macros
  51 // ----------------------------------------------------------------------------
  52
  53 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  54 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  55 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  56
  57 #if wxUSE_GUI
  58     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  59     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  86 #endif // wxUSE_GUI
  87
  88 const wxEventTable *wxEvtHandler::GetEventTable() const
  89     { return &wxEvtHandler::sm_eventTable; }
  90
  91 const wxEventTable wxEvtHandler::sm_eventTable =
  92     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
  93
  94 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
  95     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
  96
  97 // ----------------------------------------------------------------------------
  98 // global variables
  99 // ----------------------------------------------------------------------------
 100
 101 // To put pending event handlers
 102 wxList *wxPendingEvents = (wxList *)NULL;
 103
 104 #if wxUSE_THREADS
 105     // protects wxPendingEvents list
 106     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 107 #endif
 108
 109 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 110
 111 // common event types are defined here, other event types are defined by the
 112 // components which use them
 113
 114 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 115 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 116 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 117 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 118 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 119 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 120 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED)
 121 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_ENTER)
 122 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 123 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 124 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 125 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 126 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 127 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 128 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 129 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 130 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 131 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 132
 133 // Sockets and timers send events, too
 134 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 135 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 136
 137 // Mouse event types
 138 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 139 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 140 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 141 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 142 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 143 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 144 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 145 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 146 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 147 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 148 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 149 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 150 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 151 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 152
 153 // Non-client mouse events
 154 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 155 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 156 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 157 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 158 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 159 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 160 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 161 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 162 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 163 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 164 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 165 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 166
 167 // Character input event type
 168 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 169 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 170 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 171 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 172 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 173
 174 // Set cursor event
 175 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 176
 177 // wxScrollbar and wxSlider event identifiers
 178 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 179 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 180 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 181 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 182 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 183 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 184 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 185 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 186
 187 // Scroll events from wxWindow
 188 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 189 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 190 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 191 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 192 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 193 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 194 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 195 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 196
 197 // System events
 198 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 199 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 200 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 201 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 202 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 203 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 204 DEFINE_EVENT_TYPE(wxEVT_POWER)
 205 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 206 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 207 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 208 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 209 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 210 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 211 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 212 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 213 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 214 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 215 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 216 DEFINE_EVENT_TYPE(wxEVT_MENU_CHAR)
 217 DEFINE_EVENT_TYPE(wxEVT_MENU_INIT)
 218 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 219 DEFINE_EVENT_TYPE(wxEVT_POPUP_MENU_INIT)
 220 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 221 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 222 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 223 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 224 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 225 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 226 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 227 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 228 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 229 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 230 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 231 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 232 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 233 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 234 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 235 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 236
 237 // Generic command events
 238 // Note: a click is a higher-level event than button down/up
 239 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 240 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 241 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 242 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 243 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 244 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 245 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 246
 247 // Help events
 248 DEFINE_EVENT_TYPE(wxEVT_HELP)
 249 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 250
 251 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 252
 253 // ============================================================================
 254 // implementation
 255 // ============================================================================
 256
 257 // ----------------------------------------------------------------------------
 258 // event initialization
 259 // ----------------------------------------------------------------------------
 260
 261 int wxNewEventType()
 262 {
 263     // MT-FIXME
 264     static int s_lastUsedEventType = wxEVT_FIRST;
 265
 266 #if WXWIN_COMPATIBILITY_2
 267     // check that we don't overlap with the user-defined types: if it does
 268     // happen, the best solution is probably to update the existing code to
 269     // use wxNewEventType() instead of wxEVT_USER_FIRST
 270     //
 271     // due to the uncertainty
 272     wxASSERT_MSG( s_lastUsedEventType < wxEVT_USER_FIRST - 1,
 273                   _T("possible event type conflict") );
 274 #endif // WXWIN_COMPATIBILITY_2
 275
 276     return s_lastUsedEventType++;
 277 }
 278
 279 // ----------------------------------------------------------------------------
 280 // wxEvent
 281 // ----------------------------------------------------------------------------
 282
 283 /*
 284  * General wxWindows events, covering
 285  * all interesting things that might happen (button clicking, resizing,
 286  * setting text in widgets, etc.).
 287  *
 288  * For each completely new event type, derive a new event class.
 289  *
 290  */
 291
 292 wxEvent::wxEvent(int theId)
 293 {
 294     m_eventType = wxEVT_NULL;
 295     m_eventObject = (wxObject *) NULL;
 296     m_timeStamp = 0;
 297     m_id = theId;
 298     m_skipped = FALSE;
 299     m_callbackUserData = (wxObject *) NULL;
 300     m_isCommandEvent = FALSE;
 301 }
 302
 303 void wxEvent::CopyObject(wxObject& object_dest) const
 304 {
 305     wxEvent *obj = (wxEvent *)&object_dest;
 306     wxObject::CopyObject(object_dest);
 307
 308     obj->m_eventType = m_eventType;
 309     obj->m_eventObject = m_eventObject;
 310     obj->m_timeStamp = m_timeStamp;
 311     obj->m_id = m_id;
 312     obj->m_skipped = m_skipped;
 313     obj->m_callbackUserData = m_callbackUserData;
 314     obj->m_isCommandEvent = m_isCommandEvent;
 315 }
 316
 317 #if wxUSE_GUI
 318
 319 /*
 320  * Command events
 321  *
 322  */
 323
 324 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 325 {
 326     m_eventType = commandType;
 327     m_clientData = (char *) NULL;
 328     m_clientObject = (wxClientData *) NULL;
 329     m_extraLong = 0;
 330     m_commandInt = 0;
 331     m_id = theId;
 332     m_commandString = wxEmptyString;
 333     m_isCommandEvent = TRUE;
 334 }
 335
 336 void wxCommandEvent::CopyObject(wxObject& obj_d) const
 337 {
 338     wxCommandEvent *obj = (wxCommandEvent *)&obj_d;
 339
 340     wxEvent::CopyObject(obj_d);
 341
 342     obj->m_clientData    = m_clientData;
 343     obj->m_clientObject  = m_clientObject;
 344     obj->m_extraLong     = m_extraLong;
 345     obj->m_commandInt    = m_commandInt;
 346     obj->m_commandString = m_commandString;
 347 }
 348
 349 /*
 350  * Notify events
 351  */
 352
 353 void wxNotifyEvent::CopyObject(wxObject& obj_d) const
 354 {
 355     wxNotifyEvent *obj = (wxNotifyEvent *)&obj_d;
 356
 357     wxEvent::CopyObject(obj_d);
 358
 359     if (!m_bAllow) obj->Veto();
 360 }
 361
 362 /*
 363  * Scroll events
 364  */
 365
 366 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 367                              int id,
 368                              int pos,
 369                              int orient)
 370              : wxCommandEvent(commandType, id)
 371 {
 372     m_extraLong = orient;
 373     m_commandInt = pos;
 374 }
 375
 376 /*
 377  * ScrollWin events
 378  */
 379
 380 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 381                                    int pos,
 382                                    int orient)
 383 {
 384     m_eventType = commandType;
 385     m_extraLong = orient;
 386     m_commandInt = pos;
 387 }
 388
 389 void wxScrollWinEvent::CopyObject(wxObject& obj_d) const
 390 {
 391     wxScrollWinEvent *obj = (wxScrollWinEvent*)&obj_d;
 392
 393     wxEvent::CopyObject(obj_d);
 394
 395     obj->m_extraLong    = m_extraLong;
 396     obj->m_commandInt   = m_commandInt;
 397 }
 398
 399 /*
 400  * Mouse events
 401  *
 402  */
 403
 404 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 405 {
 406     m_eventType = commandType;
 407     m_metaDown = FALSE;
 408     m_altDown = FALSE;
 409     m_controlDown = FALSE;
 410     m_shiftDown = FALSE;
 411     m_leftDown = FALSE;
 412     m_rightDown = FALSE;
 413     m_middleDown = FALSE;
 414     m_x = 0;
 415     m_y = 0;
 416 }
 417
 418 void wxMouseEvent::CopyObject(wxObject& obj_d) const
 419 {
 420     wxMouseEvent *obj = (wxMouseEvent *)&obj_d;
 421
 422     wxEvent::CopyObject(obj_d);
 423
 424     obj->m_metaDown = m_metaDown;
 425     obj->m_altDown = m_altDown;
 426     obj->m_controlDown = m_controlDown;
 427     obj->m_shiftDown = m_shiftDown;
 428     obj->m_leftDown = m_leftDown;
 429     obj->m_rightDown = m_rightDown;
 430     obj->m_middleDown = m_middleDown;
 431     obj->m_x = m_x;
 432     obj->m_y = m_y;
 433 }
 434
 435 // True if was a button dclick event (1 = left, 2 = middle, 3 = right)
 436 // or any button dclick event (but = -1)
 437 bool wxMouseEvent::ButtonDClick(int but) const
 438 {
 439     switch (but)
 440     {
 441         case -1:
 442             return (LeftDClick() || MiddleDClick() || RightDClick());
 443         case 1:
 444             return LeftDClick();
 445         case 2:
 446             return MiddleDClick();
 447         case 3:
 448             return RightDClick();
 449         default:
 450             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 451     }
 452
 453     return FALSE;
 454 }
 455
 456 // True if was a button down event (1 = left, 2 = middle, 3 = right)
 457 // or any button down event (but = -1)
 458 bool wxMouseEvent::ButtonDown(int but) const
 459 {
 460     switch (but)
 461     {
 462         case -1:
 463             return (LeftDown() || MiddleDown() || RightDown());
 464         case 1:
 465             return LeftDown();
 466         case 2:
 467             return MiddleDown();
 468         case 3:
 469             return RightDown();
 470         default:
 471             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 472     }
 473
 474     return FALSE;
 475 }
 476
 477 // True if was a button up event (1 = left, 2 = middle, 3 = right)
 478 // or any button up event (but = -1)
 479 bool wxMouseEvent::ButtonUp(int but) const
 480 {
 481     switch (but) {
 482         case -1:
 483             return (LeftUp() || MiddleUp() || RightUp());
 484         case 1:
 485             return LeftUp();
 486         case 2:
 487             return MiddleUp();
 488         case 3:
 489             return RightUp();
 490         default:
 491             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 492     }
 493
 494     return FALSE;
 495 }
 496
 497 // True if the given button is currently changing state
 498 bool wxMouseEvent::Button(int but) const
 499 {
 500     switch (but) {
 501         case -1:
 502             return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1));
 503         case 1:
 504             return (LeftDown() || LeftUp() || LeftDClick());
 505         case 2:
 506             return (MiddleDown() || MiddleUp() || MiddleDClick());
 507         case 3:
 508             return (RightDown() || RightUp() || RightDClick());
 509         default:
 510             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 511     }
 512
 513     return FALSE;
 514 }
 515
 516 bool wxMouseEvent::ButtonIsDown(int but) const
 517 {
 518     switch (but) {
 519         case -1:
 520             return (LeftIsDown() || MiddleIsDown() || RightIsDown());
 521         case 1:
 522             return LeftIsDown();
 523         case 2:
 524             return MiddleIsDown();
 525         case 3:
 526             return RightIsDown();
 527         default:
 528             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 529     }
 530
 531     return FALSE;
 532 }
 533
 534 // Find the logical position of the event given the DC
 535 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 536 {
 537     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 538     return pt;
 539 }
 540
 541
 542 /*
 543  * Keyboard events
 544  *
 545  */
 546
 547 wxKeyEvent::wxKeyEvent(wxEventType type)
 548 {
 549     m_eventType = type;
 550     m_shiftDown = FALSE;
 551     m_controlDown = FALSE;
 552     m_metaDown = FALSE;
 553     m_altDown = FALSE;
 554     m_keyCode = 0;
 555     m_scanCode = 0;
 556 }
 557
 558 void wxKeyEvent::CopyObject(wxObject& obj_d) const
 559 {
 560     wxKeyEvent *obj = (wxKeyEvent *)&obj_d;
 561     wxEvent::CopyObject(obj_d);
 562
 563     obj->m_x = m_x;
 564     obj->m_y = m_y;
 565     obj->m_keyCode = m_keyCode;
 566
 567     obj->m_shiftDown   = m_shiftDown;
 568     obj->m_controlDown = m_controlDown;
 569     obj->m_metaDown    = m_metaDown;
 570     obj->m_altDown     = m_altDown;
 571     obj->m_keyCode     = m_keyCode;
 572 }
 573
 574
 575 /*
 576  * Misc events
 577  */
 578
 579 void wxSizeEvent::CopyObject(wxObject& obj_d) const
 580 {
 581     wxSizeEvent *obj = (wxSizeEvent *)&obj_d;
 582     wxEvent::CopyObject(obj_d);
 583
 584     obj->m_size = m_size;
 585 }
 586
 587 void wxMoveEvent::CopyObject(wxObject& obj_d) const
 588 {
 589     wxMoveEvent *obj = (wxMoveEvent *)&obj_d;
 590     wxEvent::CopyObject(obj_d);
 591
 592     obj->m_pos = m_pos;
 593 }
 594
 595 void wxEraseEvent::CopyObject(wxObject& obj_d) const
 596 {
 597     wxEraseEvent *obj = (wxEraseEvent *)&obj_d;
 598     wxEvent::CopyObject(obj_d);
 599
 600     obj->m_dc = m_dc;
 601 }
 602
 603 void wxActivateEvent::CopyObject(wxObject& obj_d) const
 604 {
 605     wxActivateEvent *obj = (wxActivateEvent *)&obj_d;
 606     wxEvent::CopyObject(obj_d);
 607
 608     obj->m_active = m_active;
 609 }
 610
 611 void wxMenuEvent::CopyObject(wxObject& obj_d) const
 612 {
 613     wxMenuEvent *obj = (wxMenuEvent *)&obj_d;
 614     wxEvent::CopyObject(obj_d);
 615
 616     obj->m_menuId = m_menuId;
 617 }
 618
 619 void wxCloseEvent::CopyObject(wxObject& obj_d) const
 620 {
 621     wxCloseEvent *obj = (wxCloseEvent *)&obj_d;
 622     wxEvent::CopyObject(obj_d);
 623
 624     obj->m_loggingOff = m_loggingOff;
 625     obj->m_veto = m_veto;
 626 #if WXWIN_COMPATIBILITY
 627     obj->m_force = m_force;
 628 #endif
 629     obj->m_canVeto = m_canVeto;
 630 }
 631
 632 void wxShowEvent::CopyObject(wxObject& obj_d) const
 633 {
 634     wxShowEvent *obj = (wxShowEvent *)&obj_d;
 635     wxEvent::CopyObject(obj_d);
 636
 637     obj->m_show = m_show;
 638 }
 639
 640 void wxJoystickEvent::CopyObject(wxObject& obj_d) const
 641 {
 642     wxJoystickEvent *obj = (wxJoystickEvent *)&obj_d;
 643     wxEvent::CopyObject(obj_d);
 644
 645     obj->m_pos = m_pos;
 646     obj->m_zPosition = m_zPosition;
 647     obj->m_buttonChange = m_buttonChange;
 648     obj->m_buttonState = m_buttonState;
 649     obj->m_joyStick = m_joyStick;
 650 }
 651
 652 void wxDropFilesEvent::CopyObject(wxObject& obj_d) const
 653 {
 654     wxDropFilesEvent *obj = (wxDropFilesEvent *)&obj_d;
 655     wxEvent::CopyObject(obj_d);
 656
 657     obj->m_noFiles = m_noFiles;
 658     obj->m_pos = m_pos;
 659     // TODO: Problem with obj->m_files. It should be deallocated by the
 660     // destructor of the event.
 661 }
 662
 663 void wxUpdateUIEvent::CopyObject(wxObject &obj_d) const
 664 {
 665     wxUpdateUIEvent *obj = (wxUpdateUIEvent *)&obj_d;
 666     wxEvent::CopyObject(obj_d);
 667
 668     obj->m_checked = m_checked;
 669     obj->m_enabled = m_enabled;
 670     obj->m_text = m_text;
 671     obj->m_setText = m_setText;
 672     obj->m_setChecked = m_setChecked;
 673     obj->m_setEnabled = m_setEnabled;
 674 }
 675
 676 void wxPaletteChangedEvent::CopyObject(wxObject &obj_d) const
 677 {
 678     wxPaletteChangedEvent *obj = (wxPaletteChangedEvent *)&obj_d;
 679     wxEvent::CopyObject(obj_d);
 680
 681     obj->m_changedWindow = m_changedWindow;
 682 }
 683
 684 void wxQueryNewPaletteEvent::CopyObject(wxObject& obj_d) const
 685 {
 686     wxQueryNewPaletteEvent *obj = (wxQueryNewPaletteEvent *)&obj_d;
 687     wxEvent::CopyObject(obj_d);
 688
 689     obj->m_paletteRealized = m_paletteRealized;
 690 }
 691
 692 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 693 {
 694     SetEventType(wxEVT_CREATE);
 695     SetEventObject(win);
 696 }
 697
 698 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 699 {
 700     SetEventType(wxEVT_DESTROY);
 701     SetEventObject(win);
 702 }
 703
 704 #endif // wxUSE_GUI
 705
 706 void wxIdleEvent::CopyObject(wxObject& obj_d) const
 707 {
 708     wxIdleEvent *obj = (wxIdleEvent *)&obj_d;
 709     wxEvent::CopyObject(obj_d);
 710
 711     obj->m_requestMore = m_requestMore;
 712 }
 713
 714 /*
 715  * Event handler
 716  */
 717
 718 wxEvtHandler::wxEvtHandler()
 719 {
 720     m_nextHandler = (wxEvtHandler *) NULL;
 721     m_previousHandler = (wxEvtHandler *) NULL;
 722     m_enabled = TRUE;
 723     m_dynamicEvents = (wxList *) NULL;
 724     m_isWindow = FALSE;
 725     m_pendingEvents = (wxList *) NULL;
 726 #if wxUSE_THREADS
 727 #  if !defined(__VISAGECPP__)
 728     m_eventsLocker = new wxCriticalSection;
 729 #  endif
 730 #endif
 731 }
 732
 733 wxEvtHandler::~wxEvtHandler()
 734 {
 735     // Takes itself out of the list of handlers
 736     if (m_previousHandler)
 737         m_previousHandler->m_nextHandler = m_nextHandler;
 738
 739     if (m_nextHandler)
 740         m_nextHandler->m_previousHandler = m_previousHandler;
 741
 742     if (m_dynamicEvents)
 743     {
 744         wxNode *node = m_dynamicEvents->First();
 745         while (node)
 746         {
 747 #if WXWIN_COMPATIBILITY_EVENT_TYPES
 748             wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
 749 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
 750             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
 751 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
 752
 753             if (entry->m_callbackUserData)
 754                 delete entry->m_callbackUserData;
 755             delete entry;
 756             node = node->Next();
 757         }
 758         delete m_dynamicEvents;
 759     };
 760
 761     delete m_pendingEvents;
 762
 763 #if wxUSE_THREADS
 764 #  if !defined(__VISAGECPP__)
 765     delete m_eventsLocker;
 766 #  endif
 767 #endif
 768 }
 769
 770 #if wxUSE_THREADS
 771
 772 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
 773 {
 774     // check that we are really in a child thread
 775     wxASSERT_MSG( !wxThread::IsMain(),
 776                   wxT("use ProcessEvent() in main thread") );
 777
 778     AddPendingEvent(event);
 779
 780     return TRUE;
 781 }
 782
 783 #endif // wxUSE_THREADS
 784
 785 void wxEvtHandler::AddPendingEvent(wxEvent& event)
 786 {
 787     // 1) Add event to list of pending events of this event handler
 788
 789 #if defined(__VISAGECPP__)
 790     wxENTER_CRIT_SECT( m_eventsLocker);
 791 #else
 792     wxENTER_CRIT_SECT( *m_eventsLocker);
 793 #endif
 794
 795     if ( !m_pendingEvents )
 796       m_pendingEvents = new wxList;
 797
 798     wxEvent *event2 = (wxEvent *)event.Clone();
 799
 800     m_pendingEvents->Append(event2);
 801
 802 #if defined(__VISAGECPP__)
 803     wxLEAVE_CRIT_SECT( m_eventsLocker);
 804 #else
 805     wxLEAVE_CRIT_SECT( *m_eventsLocker);
 806 #endif
 807
 808     // 2) Add this event handler to list of event handlers that
 809     //    have pending events.
 810
 811     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
 812
 813     if ( !wxPendingEvents )
 814         wxPendingEvents = new wxList;
 815     wxPendingEvents->Append(this);
 816
 817     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
 818
 819     // 3) Inform the system that new pending events are somwehere,
 820     //    and that these should be processed in idle time.
 821     wxWakeUpIdle();
 822 }
 823
 824 void wxEvtHandler::ProcessPendingEvents()
 825 {
 826 #if defined(__VISAGECPP__)
 827     wxENTER_CRIT_SECT( m_eventsLocker);
 828 #else
 829     wxENTER_CRIT_SECT( *m_eventsLocker);
 830 #endif
 831
 832     wxNode *node = m_pendingEvents->First();
 833     while ( node )
 834     {
 835         wxEvent *event = (wxEvent *)node->Data();
 836         delete node;
 837
 838         // In ProcessEvent, new events might get added and
 839         // we can safely leave the crtical section here.
 840 #if defined(__VISAGECPP__)
 841         wxLEAVE_CRIT_SECT( m_eventsLocker);
 842 #else
 843         wxLEAVE_CRIT_SECT( *m_eventsLocker);
 844 #endif
 845         ProcessEvent(*event);
 846         delete event;
 847 #if defined(__VISAGECPP__)
 848         wxENTER_CRIT_SECT( m_eventsLocker);
 849 #else
 850         wxENTER_CRIT_SECT( *m_eventsLocker);
 851 #endif
 852
 853         node = m_pendingEvents->First();
 854     }
 855
 856 #if defined(__VISAGECPP__)
 857     wxLEAVE_CRIT_SECT( m_eventsLocker);
 858 #else
 859     wxLEAVE_CRIT_SECT( *m_eventsLocker);
 860 #endif
 861 }
 862
 863 /*
 864  * Event table stuff
 865  */
 866
 867 bool wxEvtHandler::ProcessEvent(wxEvent& event)
 868 {
 869 #if wxUSE_GUI
 870     // check that our flag corresponds to reality
 871     wxASSERT( m_isWindow == IsKindOf(CLASSINFO(wxWindow)) );
 872 #endif // wxUSE_GUI
 873
 874     // An event handler can be enabled or disabled
 875     if ( GetEvtHandlerEnabled() )
 876     {
 877
 878 #if 0
 879 /*
 880         What is this? When using GUI threads, a non main
 881         threads can send an event and process it itself.
 882         This breaks GTK's GUI threads, so please explain.
 883 */
 884
 885         // Check whether we are in a child thread.
 886         if ( !wxThread::IsMain() )
 887           return ProcessThreadEvent(event);
 888 #endif
 889
 890         // Handle per-instance dynamic event tables first
 891         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
 892             return TRUE;
 893
 894         // Then static per-class event tables
 895         const wxEventTable *table = GetEventTable();
 896
 897 #if wxUSE_GUI && wxUSE_VALIDATORS
 898         // Try the associated validator first, if this is a window.
 899         // Problem: if the event handler of the window has been replaced,
 900         // this wxEvtHandler may no longer be a window.
 901         // Therefore validators won't be processed if the handler
 902         // has been replaced with SetEventHandler.
 903         // THIS CAN BE CURED if PushEventHandler is used instead of
 904         // SetEventHandler, and then processing will be passed down the
 905         // chain of event handlers.
 906         if (m_isWindow)
 907         {
 908             wxWindow *win = (wxWindow *)this;
 909
 910             // Can only use the validator of the window which
 911             // is receiving the event
 912             if ( win == event.GetEventObject() )
 913             {
 914                 wxValidator *validator = win->GetValidator();
 915                 if ( validator && validator->ProcessEvent(event) )
 916                 {
 917                     return TRUE;
 918                 }
 919             }
 920         }
 921 #endif
 922
 923         // Search upwards through the inheritance hierarchy
 924         while (table)
 925         {
 926             if ( SearchEventTable((wxEventTable&)*table, event) )
 927                 return TRUE;
 928             table = table->baseTable;
 929         }
 930     }
 931
 932     // Try going down the event handler chain
 933     if ( GetNextHandler() )
 934     {
 935         if ( GetNextHandler()->ProcessEvent(event) )
 936             return TRUE;
 937     }
 938
 939 #if wxUSE_GUI
 940     // Carry on up the parent-child hierarchy,
 941     // but only if event is a command event: it wouldn't
 942     // make sense for a parent to receive a child's size event, for example
 943     if ( m_isWindow && event.IsCommandEvent() )
 944     {
 945         wxWindow *win = (wxWindow *)this;
 946         wxWindow *parent = win->GetParent();
 947         if (parent && !parent->IsBeingDeleted())
 948             return parent->GetEventHandler()->ProcessEvent(event);
 949     }
 950 #endif // wxUSE_GUI
 951
 952     // Last try - application object.
 953     if ( wxTheApp && (this != wxTheApp) )
 954     {
 955         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
 956         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
 957         // processed appropriately via SearchEventTable.
 958         if ( event.GetEventType() != wxEVT_IDLE )
 959         {
 960             if ( wxTheApp->ProcessEvent(event) )
 961                 return TRUE;
 962         }
 963     }
 964
 965     return FALSE;
 966 }
 967
 968 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
 969 {
 970     wxEventType eventType = event.GetEventType();
 971     int eventId = event.GetId();
 972
 973     // BC++ doesn't like testing for m_fn without != 0
 974     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
 975     {
 976         // the line using reference exposes a bug in gcc: although it _seems_
 977         // to work, it leads to weird crashes later on during program
 978         // execution
 979 #ifdef __GNUG__
 980         wxEventTableEntry entry = table.entries[i];
 981 #else
 982         const wxEventTableEntry& entry = table.entries[i];
 983 #endif
 984
 985         // match only if the event type is the same and the id is either -1 in
 986         // the event table (meaning "any") or the event id matches the id
 987         // specified in the event table either exactly or by falling into
 988         // range between first and last
 989         if ( eventType == entry.m_eventType )
 990         {
 991             int tableId1 = entry.m_id,
 992                 tableId2 = entry.m_lastId;
 993
 994             if ( (tableId1 == -1) ||
 995                  (tableId2 == -1 && eventId == tableId1) ||
 996                  (tableId2 != -1 &&
 997                     (eventId >= tableId1 && eventId <= tableId2)) )
 998             {
 999                 event.Skip(FALSE);
1000                 event.m_callbackUserData = entry.m_callbackUserData;
1001
1002                 (this->*((wxEventFunction) (entry.m_fn)))(event);
1003
1004                 return !event.GetSkipped();
1005             }
1006         }
1007     }
1008
1009     return FALSE;
1010 }
1011
1012 void wxEvtHandler::Connect( int id, int lastId,
1013                             int eventType,
1014                             wxObjectEventFunction func,
1015                             wxObject *userData )
1016 {
1017 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1018     wxEventTableEntry *entry = new wxEventTableEntry;
1019     entry->m_eventType = eventType;
1020     entry->m_id = id;
1021     entry->m_lastId = lastId;
1022     entry->m_fn = func;
1023     entry->m_callbackUserData = userData;
1024 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1025     wxDynamicEventTableEntry *entry =
1026         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
1027 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1028
1029     if (!m_dynamicEvents)
1030         m_dynamicEvents = new wxList;
1031
1032     m_dynamicEvents->Append( (wxObject*) entry );
1033 }
1034
1035 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1036                   wxObjectEventFunction func,
1037                   wxObject *userData )
1038 {
1039     if (!m_dynamicEvents)
1040         return FALSE;
1041
1042     wxNode *node = m_dynamicEvents->First();
1043     while (node)
1044     {
1045 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1046             wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
1047 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1048             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
1049 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1050
1051         if ((entry->m_id == id) &&
1052             ((entry->m_lastId == lastId) || (lastId == -1)) &&
1053             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1054             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1055             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1056         {
1057             if (entry->m_callbackUserData)
1058                 delete entry->m_callbackUserData;
1059             m_dynamicEvents->DeleteNode( node );
1060             delete entry;
1061             return TRUE;
1062         }
1063         node = node->Next();
1064     }
1065     return FALSE;
1066 }
1067
1068 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1069 {
1070     wxCHECK_MSG( m_dynamicEvents, FALSE,
1071                  wxT("caller should check that we have dynamic events") );
1072
1073     int commandId = event.GetId();
1074
1075     wxNode *node = m_dynamicEvents->First();
1076     while (node)
1077     {
1078 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1079             wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
1080 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1081             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
1082 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1083
1084         if (entry->m_fn)
1085         {
1086             // Match, if event spec says any id will do (id == -1)
1087             if ( (event.GetEventType() == entry->m_eventType) &&
1088                  (entry->m_id == -1 ||
1089                   (entry->m_lastId == -1 && commandId == entry->m_id) ||
1090                   (entry->m_lastId != -1 &&
1091                   (commandId >= entry->m_id && commandId <= entry->m_lastId))) )
1092             {
1093                 event.Skip(FALSE);
1094                 event.m_callbackUserData = entry->m_callbackUserData;
1095
1096                 (this->*((wxEventFunction) (entry->m_fn)))(event);
1097
1098                 if (event.GetSkipped())
1099                     return FALSE;
1100                 else
1101                     return TRUE;
1102             }
1103         }
1104         node = node->Next();
1105     }
1106     return FALSE;
1107 };
1108
1109 #if WXWIN_COMPATIBILITY
1110 bool wxEvtHandler::OnClose()
1111 {
1112     if (GetNextHandler())
1113         return GetNextHandler()->OnClose();
1114     else
1115         return FALSE;
1116 }
1117 #endif // WXWIN_COMPATIBILITY
1118
1119 #if wxUSE_GUI
1120
1121 // Find a window with the focus, that is also a descendant of the given window.
1122 // This is used to determine the window to initially send commands to.
1123 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1124 {
1125     // Process events starting with the window with the focus, if any.
1126     wxWindow* focusWin = wxWindow::FindFocus();
1127     wxWindow* win = focusWin;
1128
1129     // Check if this is a descendant of this frame.
1130     // If not, win will be set to NULL.
1131     while (win)
1132     {
1133         if (win == ancestor)
1134             break;
1135         else
1136             win = win->GetParent();
1137     }
1138     if (win == (wxWindow*) NULL)
1139         focusWin = (wxWindow*) NULL;
1140
1141     return focusWin;
1142 }
1143
1144 #endif // wxUSE_GUI