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[wxWidgets.git] / 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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__)
21 // Some older compilers (such as EMX) cannot handle
22 // #pragma interface/implementation correctly, iff
23 // #pragma implementation is used in _two_ translation
24 // units (as created by e.g. event.cpp compiled for
25 // libwx_base and event.cpp compiled for libwx_gui_core).
26 // So we must not use those pragmas for those compilers in
27 // such files.
28 #pragma implementation "event.h"
29 #endif
30
31 // For compilers that support precompilation, includes "wx.h".
32 #include "wx/wxprec.h"
33
34 #ifdef __BORLANDC__
35 #pragma hdrstop
36 #endif
37
38 #ifndef WX_PRECOMP
39 #include "wx/defs.h"
40 #include "wx/app.h"
41 #include "wx/list.h"
42
43 #if wxUSE_GUI
44 #include "wx/control.h"
45 #include "wx/utils.h"
46 #include "wx/dc.h"
47 #endif // wxUSE_GUI
48 #endif
49
50 #include "wx/event.h"
51 #include "wx/module.h"
52
53 #if wxUSE_GUI
54 #include "wx/validate.h"
55 #if wxUSE_STOPWATCH
56 #include "wx/stopwatch.h"
57 #endif
58 #endif // wxUSE_GUI
59
60 // ----------------------------------------------------------------------------
61 // wxWin macros
62 // ----------------------------------------------------------------------------
63
64 #if wxUSE_BASE
65 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
66 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
67 #endif // wxUSE_BASE
68
69 #if wxUSE_GUI
70 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
91 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
92 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
93 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
94 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
95 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
96 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
97 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
98 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
99 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
100 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
101 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
102 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
103 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
104 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
105 #endif // wxUSE_GUI
106
107 #if wxUSE_BASE
108
109 const wxEventTable *wxEvtHandler::GetEventTable() const
110 { return &wxEvtHandler::sm_eventTable; }
111
112 const wxEventTable wxEvtHandler::sm_eventTable =
113 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
114
115 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
116 { return wxEvtHandler::sm_eventHashTable; }
117
118 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
119
120 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
121 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
122
123
124 #ifdef __WXDEBUG__
125 // Clear up event hash table contents or we can get problems
126 // when C++ is cleaning up the static object
127 class wxEventTableEntryModule: public wxModule
128 {
129 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
130 public:
131 wxEventTableEntryModule() {}
132 bool OnInit() { return true; }
133 void OnExit()
134 {
135 wxEventHashTable::ClearAll();
136 }
137 };
138 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
139 #endif
140
141 // ----------------------------------------------------------------------------
142 // global variables
143 // ----------------------------------------------------------------------------
144
145 // To put pending event handlers
146 wxList *wxPendingEvents = (wxList *)NULL;
147
148 #if wxUSE_THREADS
149 // protects wxPendingEvents list
150 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
151 #endif
152
153 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
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 DEFINE_EVENT_TYPE(wxEVT_IDLE)
163 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
164
165 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
166
167 #endif // wxUSE_BASE
168
169 #if wxUSE_GUI
170
171 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
172
173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
183 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
184 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
185 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
186 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
187 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
188 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
189
190 // Sockets and timers send events, too
191 DEFINE_EVENT_TYPE(wxEVT_TIMER)
192
193 // Mouse event types
194 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
195 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
196 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
197 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
198 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
199 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
200 DEFINE_EVENT_TYPE(wxEVT_MOTION)
201 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
202 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
203 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
204 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
205 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
206 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
207 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
208 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
209 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
210
211 // Non-client mouse events
212 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
213 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
214 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
215 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
216 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
217 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
218 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
219 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
220 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
221 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
222 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
223 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
224
225 // Character input event type
226 DEFINE_EVENT_TYPE(wxEVT_CHAR)
227 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
228 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
229 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
230 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
231 #if wxUSE_HOTKEY
232 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
233 #endif
234
235 // Set cursor event
236 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
237
238 // wxScrollbar and wxSlider event identifiers
239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
245 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
246 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
247 DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL)
248
249 // Scroll events from wxWindow
250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
254 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
255 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
256 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
257 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
258
259 // System events
260 DEFINE_EVENT_TYPE(wxEVT_SIZE)
261 DEFINE_EVENT_TYPE(wxEVT_SIZING)
262 DEFINE_EVENT_TYPE(wxEVT_MOVE)
263 DEFINE_EVENT_TYPE(wxEVT_MOVING)
264 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
265 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
266 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
267 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
268 DEFINE_EVENT_TYPE(wxEVT_POWER)
269 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
270 DEFINE_EVENT_TYPE(wxEVT_CREATE)
271 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
272 DEFINE_EVENT_TYPE(wxEVT_SHOW)
273 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
274 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
275 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
276 DEFINE_EVENT_TYPE(wxEVT_PAINT)
277 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
278 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
279 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
280 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
281 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
282 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
283 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
284 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
285 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
286 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
287 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
288 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
289 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
290 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
291 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
292 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
293 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
294 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
295 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
296 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
297 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
298 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
299
300 // Generic command events
301 // Note: a click is a higher-level event than button down/up
302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
304 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
305 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
306 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
309
310 // Help events
311 DEFINE_EVENT_TYPE(wxEVT_HELP)
312 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
313
314 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
315
316 #endif // wxUSE_GUI
317
318 #if wxUSE_BASE
319
320 // ============================================================================
321 // implementation
322 // ============================================================================
323
324 // ----------------------------------------------------------------------------
325 // event initialization
326 // ----------------------------------------------------------------------------
327
328 int wxNewEventType()
329 {
330 // MT-FIXME
331 static int s_lastUsedEventType = wxEVT_FIRST;
332
333 return s_lastUsedEventType++;
334 }
335
336 // ----------------------------------------------------------------------------
337 // wxEvent
338 // ----------------------------------------------------------------------------
339
340 /*
341 * General wxWindows events, covering
342 * all interesting things that might happen (button clicking, resizing,
343 * setting text in widgets, etc.).
344 *
345 * For each completely new event type, derive a new event class.
346 *
347 */
348
349 wxEvent::wxEvent(int theId, wxEventType commandType )
350 {
351 m_eventType = commandType;
352 m_eventObject = (wxObject *) NULL;
353 m_timeStamp = 0;
354 m_id = theId;
355 m_skipped = false;
356 m_callbackUserData = (wxObject *) NULL;
357 m_isCommandEvent = false;
358 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
359 }
360
361 wxEvent::wxEvent(const wxEvent &src)
362 : wxObject()
363 , m_eventObject(src.m_eventObject)
364 , m_eventType(src.m_eventType)
365 , m_timeStamp(src.m_timeStamp)
366 , m_id(src.m_id)
367 , m_callbackUserData(src.m_callbackUserData)
368 , m_propagationLevel(src.m_propagationLevel)
369 , m_skipped(src.m_skipped)
370 , m_isCommandEvent(src.m_isCommandEvent)
371 {
372 }
373
374 #endif // wxUSE_BASE
375
376 #if wxUSE_GUI
377
378 /*
379 * Command events
380 *
381 */
382
383 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
384 : wxEvent(theId, commandType)
385 {
386 m_clientData = (char *) NULL;
387 m_clientObject = (wxClientData *) NULL;
388 m_extraLong = 0;
389 m_commandInt = 0;
390 m_isCommandEvent = true;
391
392 // the command events are propagated upwards by default
393 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
394 }
395
396 /*
397 * UI update events
398 */
399
400 #if wxUSE_LONGLONG
401 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
402 #endif
403
404 long wxUpdateUIEvent::sm_updateInterval = 0;
405
406 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
407
408 // Can we update?
409 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
410 {
411 // Don't update if we've switched global updating off
412 // and this window doesn't support updates.
413 if (win &&
414 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
415 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
416 return false;
417
418 if (sm_updateInterval == -1)
419 return false;
420 else if (sm_updateInterval == 0)
421 return true;
422 else
423 {
424 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
425 wxLongLong now = wxGetLocalTimeMillis();
426 if (now > (sm_lastUpdate + sm_updateInterval))
427 {
428 return true;
429 }
430 #else
431 // If we don't have wxStopWatch or wxLongLong, we
432 // should err on the safe side and update now anyway.
433 return true;
434 #endif
435 }
436 return false;
437 }
438
439 // Reset the update time to provide a delay until the next
440 // time we should update
441 void wxUpdateUIEvent::ResetUpdateTime()
442 {
443 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
444 if (sm_updateInterval > 0)
445 {
446 wxLongLong now = wxGetLocalTimeMillis();
447 if (now > (sm_lastUpdate + sm_updateInterval))
448 {
449 sm_lastUpdate = now;
450 }
451 }
452 #endif
453 }
454
455 /*
456 * Idle events
457 */
458
459 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
460
461 // Can we send an idle event?
462 bool wxIdleEvent::CanSend(wxWindow* win)
463 {
464 // Don't update if we've switched global updating off
465 // and this window doesn't support updates.
466 if (win &&
467 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
468 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
469 return false;
470
471 return true;
472 }
473
474 /*
475 * Scroll events
476 */
477
478 wxScrollEvent::wxScrollEvent(wxEventType commandType,
479 int id,
480 int pos,
481 int orient)
482 : wxCommandEvent(commandType, id)
483 {
484 m_extraLong = orient;
485 m_commandInt = pos;
486 }
487
488 /*
489 * ScrollWin events
490 */
491
492 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
493 int pos,
494 int orient)
495 {
496 m_eventType = commandType;
497 m_extraLong = orient;
498 m_commandInt = pos;
499 }
500
501 /*
502 * Mouse events
503 *
504 */
505
506 wxMouseEvent::wxMouseEvent(wxEventType commandType)
507 {
508 m_eventType = commandType;
509 m_metaDown = false;
510 m_altDown = false;
511 m_controlDown = false;
512 m_shiftDown = false;
513 m_leftDown = false;
514 m_rightDown = false;
515 m_middleDown = false;
516 m_x = 0;
517 m_y = 0;
518 m_wheelRotation = 0;
519 m_wheelDelta = 0;
520 m_linesPerAction = 0;
521 }
522
523 void wxMouseEvent::Assign(const wxMouseEvent& event)
524 {
525 m_eventType = event.m_eventType;
526
527 m_x = event.m_x;
528 m_y = event.m_y;
529
530 m_leftDown = event.m_leftDown;
531 m_middleDown = event.m_middleDown;
532 m_rightDown = event.m_rightDown;
533
534 m_controlDown = event.m_controlDown;
535 m_shiftDown = event.m_shiftDown;
536 m_altDown = event.m_altDown;
537 m_metaDown = event.m_metaDown;
538
539 m_wheelRotation = event.m_wheelRotation;
540 m_wheelDelta = event.m_wheelDelta;
541 m_linesPerAction = event.m_linesPerAction;
542 }
543
544 // return true if was a button dclick event
545 bool wxMouseEvent::ButtonDClick(int but) const
546 {
547 switch (but)
548 {
549 default:
550 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
551 // fall through
552
553 case wxMOUSE_BTN_ANY:
554 return (LeftDClick() || MiddleDClick() || RightDClick());
555
556 case wxMOUSE_BTN_LEFT:
557 return LeftDClick();
558
559 case wxMOUSE_BTN_MIDDLE:
560 return MiddleDClick();
561
562 case wxMOUSE_BTN_RIGHT:
563 return RightDClick();
564 }
565 }
566
567 // return true if was a button down event
568 bool wxMouseEvent::ButtonDown(int but) const
569 {
570 switch (but)
571 {
572 default:
573 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
574 // fall through
575
576 case wxMOUSE_BTN_ANY:
577 return (LeftDown() || MiddleDown() || RightDown());
578
579 case wxMOUSE_BTN_LEFT:
580 return LeftDown();
581
582 case wxMOUSE_BTN_MIDDLE:
583 return MiddleDown();
584
585 case wxMOUSE_BTN_RIGHT:
586 return RightDown();
587 }
588 }
589
590 // return true if was a button up event
591 bool wxMouseEvent::ButtonUp(int but) const
592 {
593 switch (but)
594 {
595 default:
596 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
597 // fall through
598
599 case wxMOUSE_BTN_ANY:
600 return (LeftUp() || MiddleUp() || RightUp());
601
602 case wxMOUSE_BTN_LEFT:
603 return LeftUp();
604
605 case wxMOUSE_BTN_MIDDLE:
606 return MiddleUp();
607
608 case wxMOUSE_BTN_RIGHT:
609 return RightUp();
610 }
611 }
612
613 // return true if the given button is currently changing state
614 bool wxMouseEvent::Button(int but) const
615 {
616 switch (but)
617 {
618 default:
619 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
620 // fall through
621
622 case wxMOUSE_BTN_ANY:
623 return ButtonUp(wxMOUSE_BTN_ANY) ||
624 ButtonDown(wxMOUSE_BTN_ANY) ||
625 ButtonDClick(wxMOUSE_BTN_ANY);
626
627 case wxMOUSE_BTN_LEFT:
628 return LeftDown() || LeftUp() || LeftDClick();
629
630 case wxMOUSE_BTN_MIDDLE:
631 return MiddleDown() || MiddleUp() || MiddleDClick();
632
633 case wxMOUSE_BTN_RIGHT:
634 return RightDown() || RightUp() || RightDClick();
635 }
636 }
637
638 bool wxMouseEvent::ButtonIsDown(int but) const
639 {
640 switch (but)
641 {
642 default:
643 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
644 // fall through
645
646 case wxMOUSE_BTN_ANY:
647 return LeftIsDown() || MiddleIsDown() || RightIsDown();
648
649 case wxMOUSE_BTN_LEFT:
650 return LeftIsDown();
651
652 case wxMOUSE_BTN_MIDDLE:
653 return MiddleIsDown();
654
655 case wxMOUSE_BTN_RIGHT:
656 return RightIsDown();
657 }
658 }
659
660 int wxMouseEvent::GetButton() const
661 {
662 for ( int i = 1; i <= 3; i++ )
663 {
664 if ( Button(i) )
665 {
666 return i;
667 }
668 }
669
670 return wxMOUSE_BTN_NONE;
671 }
672
673 // Find the logical position of the event given the DC
674 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
675 {
676 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
677 return pt;
678 }
679
680
681 /*
682 * Keyboard event
683 *
684 */
685
686 wxKeyEvent::wxKeyEvent(wxEventType type)
687 {
688 m_eventType = type;
689 m_shiftDown = false;
690 m_controlDown = false;
691 m_metaDown = false;
692 m_altDown = false;
693 m_keyCode = 0;
694 m_scanCode = 0;
695 #if wxUSE_UNICODE
696 m_uniChar = 0;
697 #endif
698 }
699
700 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
701 : wxEvent(evt)
702 {
703 m_x = evt.m_x;
704 m_y = evt.m_y;
705
706 m_keyCode = evt.m_keyCode;
707
708 m_controlDown = evt.m_controlDown;
709 m_shiftDown = evt.m_shiftDown;
710 m_altDown = evt.m_altDown;
711 m_metaDown = evt.m_metaDown;
712 m_scanCode = evt.m_scanCode;
713 m_rawCode = evt.m_rawCode;
714 m_rawFlags = evt.m_rawFlags;
715
716 #if wxUSE_UNICODE
717 m_uniChar = evt.m_uniChar;
718 #endif
719 }
720
721 long wxKeyEvent::KeyCode() const
722 {
723 return m_keyCode;
724 }
725
726 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
727 {
728 SetEventType(wxEVT_CREATE);
729 SetEventObject(win);
730 }
731
732 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
733 {
734 SetEventType(wxEVT_DESTROY);
735 SetEventObject(win);
736 }
737
738 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
739 : wxCommandEvent(wxEVT_CHILD_FOCUS)
740 {
741 SetEventObject(win);
742 }
743
744 #endif // wxUSE_GUI
745
746
747 #if wxUSE_BASE
748
749 // ----------------------------------------------------------------------------
750 // wxEventHashTable
751 // ----------------------------------------------------------------------------
752
753 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
754
755 wxEventHashTable* wxEventHashTable::sm_first = NULL;
756
757 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
758 : m_table(table),
759 m_rebuildHash(true)
760 {
761 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
762
763 m_next = sm_first;
764 if (m_next)
765 m_next->m_previous = this;
766 sm_first = this;
767 }
768
769 wxEventHashTable::~wxEventHashTable()
770 {
771 if (m_next)
772 m_next->m_previous = m_previous;
773 if (m_previous)
774 m_previous->m_next = m_next;
775 if (sm_first == this)
776 sm_first = m_next;
777
778 Clear();
779 }
780
781 void wxEventHashTable::Clear()
782 {
783 size_t i;
784 for(i = 0; i < m_size; i++)
785 {
786 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
787 if (eTTnode)
788 {
789 delete eTTnode;
790 }
791 }
792
793 // Necessary in order to not invoke the
794 // overloaded delete operator when statics are cleaned up
795 if (m_eventTypeTable)
796 delete[] m_eventTypeTable;
797
798 m_eventTypeTable = NULL;
799 m_size = 0;
800 }
801
802 // Clear all tables
803 void wxEventHashTable::ClearAll()
804 {
805 wxEventHashTable* table = sm_first;
806 while (table)
807 {
808 table->Clear();
809 table = table->m_next;
810 }
811 }
812
813 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
814 {
815 if (m_rebuildHash)
816 {
817 InitHashTable();
818 m_rebuildHash = false;
819 }
820
821 if (!m_eventTypeTable)
822 return FALSE;
823
824 // Find all entries for the given event type.
825 wxEventType eventType = event.GetEventType();
826 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
827 if (eTTnode && eTTnode->eventType == eventType)
828 {
829 // Now start the search for an event handler
830 // that can handle an event with the given ID.
831 const wxEventTableEntryPointerArray&
832 eventEntryTable = eTTnode->eventEntryTable;
833
834 const size_t count = eventEntryTable.GetCount();
835 for (size_t n = 0; n < count; n++)
836 {
837 if ( wxEvtHandler::
838 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
839 {
840 return true;
841 }
842 }
843 }
844
845 return false;
846 }
847
848 void wxEventHashTable::InitHashTable()
849 {
850 // Loop over the event tables and all its base tables.
851 const wxEventTable *table = &m_table;
852 while (table)
853 {
854 // Retrieve all valid event handler entries
855 const wxEventTableEntry *entry = table->entries;
856 while (entry->m_fn != 0)
857 {
858 // Add the event entry in the Hash.
859 AddEntry(*entry);
860
861 entry++;
862 }
863
864 table = table->baseTable;
865 }
866
867 // Lets free some memory.
868 size_t i;
869 for(i = 0; i < m_size; i++)
870 {
871 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
872 if (eTTnode)
873 {
874 eTTnode->eventEntryTable.Shrink();
875 }
876 }
877 }
878
879 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
880 {
881 // This might happen 'accidentally' as the app is exiting
882 if (!m_eventTypeTable)
883 return;
884
885 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
886 EventTypeTablePointer eTTnode = *peTTnode;
887
888 if (eTTnode)
889 {
890 if (eTTnode->eventType != entry.m_eventType)
891 {
892 // Resize the table!
893 GrowEventTypeTable();
894 // Try again to add it.
895 AddEntry(entry);
896 return;
897 }
898 }
899 else
900 {
901 eTTnode = new EventTypeTable;
902 eTTnode->eventType = entry.m_eventType;
903 *peTTnode = eTTnode;
904 }
905
906 // Fill all hash entries between entry.m_id and entry.m_lastId...
907 eTTnode->eventEntryTable.Add(&entry);
908 }
909
910 void wxEventHashTable::AllocEventTypeTable(size_t size)
911 {
912 m_eventTypeTable = new EventTypeTablePointer[size];
913 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
914 m_size = size;
915 }
916
917 void wxEventHashTable::GrowEventTypeTable()
918 {
919 size_t oldSize = m_size;
920 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
921
922 // TODO: Search the most optimal grow sequence
923 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
924
925 for ( size_t i = 0; i < oldSize; /* */ )
926 {
927 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
928 if (eTToldNode)
929 {
930 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
931 EventTypeTablePointer eTTnode = *peTTnode;
932
933 // Check for collision, we don't want any.
934 if (eTTnode)
935 {
936 GrowEventTypeTable();
937 continue; // Don't increment the counter,
938 // as we still need to add this element.
939 }
940 else
941 {
942 // Get the old value and put it in the new table.
943 *peTTnode = oldEventTypeTable[i];
944 }
945 }
946
947 i++;
948 }
949
950 delete[] oldEventTypeTable;
951 }
952
953
954 // ----------------------------------------------------------------------------
955 // wxEvtHandler
956 // ----------------------------------------------------------------------------
957
958 /*
959 * Event handler
960 */
961
962 wxEvtHandler::wxEvtHandler()
963 {
964 m_nextHandler = (wxEvtHandler *) NULL;
965 m_previousHandler = (wxEvtHandler *) NULL;
966 m_enabled = true;
967 m_dynamicEvents = (wxList *) NULL;
968 m_pendingEvents = (wxList *) NULL;
969 #if wxUSE_THREADS
970 # if !defined(__VISAGECPP__)
971 m_eventsLocker = new wxCriticalSection;
972 # endif
973 #endif
974 // no client data (yet)
975 m_clientData = NULL;
976 m_clientDataType = wxClientData_None;
977 }
978
979 wxEvtHandler::~wxEvtHandler()
980 {
981 // Takes itself out of the list of handlers
982 if (m_previousHandler)
983 m_previousHandler->m_nextHandler = m_nextHandler;
984
985 if (m_nextHandler)
986 m_nextHandler->m_previousHandler = m_previousHandler;
987
988 if (m_dynamicEvents)
989 {
990 wxList::iterator it = m_dynamicEvents->begin(),
991 en = m_dynamicEvents->end();
992 for (;it != en; ++it)
993 {
994 #if WXWIN_COMPATIBILITY_EVENT_TYPES
995 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
996 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
997 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
998 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
999
1000 if (entry->m_callbackUserData)
1001 delete entry->m_callbackUserData;
1002 delete entry;
1003 }
1004 delete m_dynamicEvents;
1005 };
1006
1007 delete m_pendingEvents;
1008
1009 #if wxUSE_THREADS
1010 # if !defined(__VISAGECPP__)
1011 delete m_eventsLocker;
1012 # endif
1013
1014 // Remove us from wxPendingEvents if necessary.
1015 if(wxPendingEventsLocker)
1016 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1017 if ( wxPendingEvents ) {
1018 wxPendingEvents->DeleteObject(this);
1019 }
1020 if(wxPendingEventsLocker)
1021 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1022 #endif
1023
1024 // we only delete object data, not untyped
1025 if ( m_clientDataType == wxClientData_Object )
1026 delete m_clientObject;
1027 }
1028
1029 #if wxUSE_THREADS
1030
1031 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1032 {
1033 // check that we are really in a child thread
1034 wxASSERT_MSG( !wxThread::IsMain(),
1035 wxT("use ProcessEvent() in main thread") );
1036
1037 AddPendingEvent(event);
1038
1039 return true;
1040 }
1041
1042 void wxEvtHandler::ClearEventLocker()
1043 {
1044 #if !defined(__VISAGECPP__)
1045 delete m_eventsLocker;
1046 m_eventsLocker = NULL;
1047 #endif
1048 };
1049
1050 #endif // wxUSE_THREADS
1051
1052 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1053 {
1054 // 1) Add event to list of pending events of this event handler
1055
1056 wxEvent *eventCopy = event.Clone();
1057
1058 // we must be able to copy the events here so the event class must
1059 // implement Clone() properly instead of just providing a NULL stab for it
1060 wxCHECK_RET( eventCopy,
1061 _T("events of this type aren't supposed to be posted") );
1062
1063 #if defined(__VISAGECPP__)
1064 wxENTER_CRIT_SECT( m_eventsLocker);
1065 #else
1066 wxENTER_CRIT_SECT( *m_eventsLocker);
1067 #endif
1068
1069 if ( !m_pendingEvents )
1070 m_pendingEvents = new wxList;
1071
1072 m_pendingEvents->Append(eventCopy);
1073
1074 #if defined(__VISAGECPP__)
1075 wxLEAVE_CRIT_SECT( m_eventsLocker);
1076 #else
1077 wxLEAVE_CRIT_SECT( *m_eventsLocker);
1078 #endif
1079
1080 // 2) Add this event handler to list of event handlers that
1081 // have pending events.
1082
1083 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1084
1085 if ( !wxPendingEvents )
1086 wxPendingEvents = new wxList;
1087 wxPendingEvents->Append(this);
1088
1089 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1090
1091 // 3) Inform the system that new pending events are somwehere,
1092 // and that these should be processed in idle time.
1093 wxWakeUpIdle();
1094 }
1095
1096 void wxEvtHandler::ProcessPendingEvents()
1097 {
1098 // this method is only called by wxApp if this handler does have pending
1099 // events
1100 wxCHECK_RET( m_pendingEvents,
1101 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1102
1103 #if defined(__VISAGECPP__)
1104 wxENTER_CRIT_SECT( m_eventsLocker);
1105 #else
1106 wxENTER_CRIT_SECT( *m_eventsLocker);
1107 #endif
1108
1109 wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1110 while ( node )
1111 {
1112 wxEvent *event = (wxEvent *)node->GetData();
1113 m_pendingEvents->Erase(node);
1114
1115 // In ProcessEvent, new events might get added and
1116 // we can safely leave the crtical section here.
1117 #if defined(__VISAGECPP__)
1118 wxLEAVE_CRIT_SECT( m_eventsLocker);
1119 #else
1120 wxLEAVE_CRIT_SECT( *m_eventsLocker);
1121 #endif
1122 ProcessEvent(*event);
1123 delete event;
1124 #if defined(__VISAGECPP__)
1125 wxENTER_CRIT_SECT( m_eventsLocker);
1126 #else
1127 wxENTER_CRIT_SECT( *m_eventsLocker);
1128 #endif
1129
1130 node = m_pendingEvents->GetFirst();
1131 }
1132
1133 #if defined(__VISAGECPP__)
1134 wxLEAVE_CRIT_SECT( m_eventsLocker);
1135 #else
1136 wxLEAVE_CRIT_SECT( *m_eventsLocker);
1137 #endif
1138 }
1139
1140 /*
1141 * Event table stuff
1142 */
1143 /* static */ bool
1144 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1145 wxEvtHandler *handler,
1146 wxEvent& event)
1147 {
1148 int tableId1 = entry.m_id,
1149 tableId2 = entry.m_lastId;
1150
1151 // match only if the event type is the same and the id is either -1 in
1152 // the event table (meaning "any") or the event id matches the id
1153 // specified in the event table either exactly or by falling into
1154 // range between first and last
1155 if ((tableId1 == -1) ||
1156 (tableId2 == -1 && tableId1 == event.GetId()) ||
1157 (tableId2 != -1 &&
1158 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1159 {
1160 event.Skip(false);
1161 event.m_callbackUserData = entry.m_callbackUserData;
1162
1163 #if wxUSE_EXCEPTIONS
1164 if ( wxTheApp )
1165 {
1166 // call the handler via wxApp method which allows the user to catch
1167 // any exceptions which may be thrown by any handler in the program
1168 // in one place
1169 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1170 }
1171 else
1172 #endif // wxUSE_EXCEPTIONS
1173 {
1174 // no need for an extra virtual function call
1175 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1176 }
1177
1178 if (!event.GetSkipped())
1179 return true;
1180 }
1181
1182 return false;
1183 }
1184
1185 bool wxEvtHandler::TryParent(wxEvent& event)
1186 {
1187 if ( wxTheApp && (this != wxTheApp) )
1188 {
1189 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1190 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1191 // processed appropriately via SearchEventTable.
1192 if ( event.GetEventType() != wxEVT_IDLE )
1193 {
1194 if ( wxTheApp->ProcessEvent(event) )
1195 return true;
1196 }
1197 }
1198
1199 return false;
1200 }
1201
1202 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1203 {
1204 // allow the application to hook into event processing
1205 if ( wxTheApp )
1206 {
1207 int rc = wxTheApp->FilterEvent(event);
1208 if ( rc != -1 )
1209 {
1210 wxASSERT_MSG( rc == 1 || rc == 0,
1211 _T("unexpected wxApp::FilterEvent return value") );
1212
1213 return rc != 0;
1214 }
1215 //else: proceed normally
1216 }
1217
1218 // An event handler can be enabled or disabled
1219 if ( GetEvtHandlerEnabled() )
1220 {
1221 // if we have a validator, it has higher priority than our own event
1222 // table
1223 if ( TryValidator(event) )
1224 return true;
1225
1226 // Handle per-instance dynamic event tables first
1227 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1228 return true;
1229
1230 // Then static per-class event tables
1231 if ( GetEventHashTable().HandleEvent(event, this) )
1232 return true;
1233 }
1234
1235 // Try going down the event handler chain
1236 if ( GetNextHandler() )
1237 {
1238 if ( GetNextHandler()->ProcessEvent(event) )
1239 return true;
1240 }
1241
1242 // Finally propagate the event upwards the window chain and/or to the
1243 // application object as necessary
1244 return TryParent(event);
1245 }
1246
1247
1248 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1249 {
1250 const wxEventType eventType = event.GetEventType();
1251 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1252 {
1253 const wxEventTableEntry& entry = table.entries[i];
1254 if ( eventType == entry.m_eventType )
1255 {
1256 if ( ProcessEventIfMatches(entry, this, event) )
1257 return true;
1258 }
1259 }
1260
1261 return false;
1262 }
1263
1264 void wxEvtHandler::Connect( int id, int lastId,
1265 int eventType,
1266 wxObjectEventFunction func,
1267 wxObject *userData,
1268 wxEvtHandler* eventSink )
1269 {
1270 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1271 wxEventTableEntry *entry = new wxEventTableEntry;
1272 entry->m_eventType = eventType;
1273 entry->m_id = id;
1274 entry->m_lastId = lastId;
1275 entry->m_fn = func;
1276 entry->m_callbackUserData = userData;
1277 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1278 wxDynamicEventTableEntry *entry =
1279 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1280 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1281
1282 if (!m_dynamicEvents)
1283 m_dynamicEvents = new wxList;
1284
1285 // Insert at the front of the list so most recent additions are found first
1286 m_dynamicEvents->Insert( (wxObject*) entry );
1287 }
1288
1289 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1290 wxObjectEventFunction func,
1291 wxObject *userData,
1292 wxEvtHandler* eventSink )
1293 {
1294 if (!m_dynamicEvents)
1295 return false;
1296
1297 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1298 while (node)
1299 {
1300 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1301 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1302 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1303 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1304 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1305
1306 if ((entry->m_id == id) &&
1307 ((entry->m_lastId == lastId) || (lastId == -1)) &&
1308 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1309 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1310 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1311 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1312 {
1313 if (entry->m_callbackUserData)
1314 delete entry->m_callbackUserData;
1315 m_dynamicEvents->Erase( node );
1316 delete entry;
1317 return true;
1318 }
1319 node = node->GetNext();
1320 }
1321 return false;
1322 }
1323
1324 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1325 {
1326 wxCHECK_MSG( m_dynamicEvents, false,
1327 wxT("caller should check that we have dynamic events") );
1328
1329 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1330 while (node)
1331 {
1332 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1333 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1334 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1335 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1336 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1337
1338 if ((event.m_eventType == entry->m_eventType) && (entry->m_fn != 0))
1339 {
1340 wxEvtHandler *handler =
1341 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1342 entry->m_eventSink ? entry->m_eventSink
1343 :
1344 #endif
1345 this;
1346
1347 if ( ProcessEventIfMatches(*entry, handler, event) )
1348 {
1349 return true;
1350 }
1351 }
1352
1353 node = node->GetNext();
1354 }
1355
1356 return false;
1357 };
1358
1359 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1360 {
1361 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1362 wxT("can't have both object and void client data") );
1363
1364 if ( m_clientObject )
1365 delete m_clientObject;
1366
1367 m_clientObject = data;
1368 m_clientDataType = wxClientData_Object;
1369 }
1370
1371 wxClientData *wxEvtHandler::DoGetClientObject() const
1372 {
1373 // it's not an error to call GetClientObject() on a window which doesn't
1374 // have client data at all - NULL will be returned
1375 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1376 wxT("this window doesn't have object client data") );
1377
1378 return m_clientObject;
1379 }
1380
1381 void wxEvtHandler::DoSetClientData( void *data )
1382 {
1383 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1384 wxT("can't have both object and void client data") );
1385
1386 m_clientData = data;
1387 m_clientDataType = wxClientData_Void;
1388 }
1389
1390 void *wxEvtHandler::DoGetClientData() const
1391 {
1392 // it's not an error to call GetClientData() on a window which doesn't have
1393 // client data at all - NULL will be returned
1394 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1395 wxT("this window doesn't have void client data") );
1396
1397 return m_clientData;
1398 }
1399
1400 #endif // wxUSE_BASE
1401
1402 #if wxUSE_GUI
1403
1404 // Find a window with the focus, that is also a descendant of the given window.
1405 // This is used to determine the window to initially send commands to.
1406 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1407 {
1408 // Process events starting with the window with the focus, if any.
1409 wxWindow* focusWin = wxWindow::FindFocus();
1410 wxWindow* win = focusWin;
1411
1412 // Check if this is a descendant of this frame.
1413 // If not, win will be set to NULL.
1414 while (win)
1415 {
1416 if (win == ancestor)
1417 break;
1418 else
1419 win = win->GetParent();
1420 }
1421 if (win == (wxWindow*) NULL)
1422 focusWin = (wxWindow*) NULL;
1423
1424 return focusWin;
1425 }
1426
1427 #endif // wxUSE_GUI
wxWidgets (Impactor)