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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 #include "wx/textctrl.h"
48 #endif // wxUSE_GUI
49 #endif
50
51 #include "wx/event.h"
52 #include "wx/module.h"
53
54 #if wxUSE_GUI
55 #include "wx/validate.h"
56 #if wxUSE_STOPWATCH
57 #include "wx/stopwatch.h"
58 #endif
59 #endif // wxUSE_GUI
60
61 // ----------------------------------------------------------------------------
62 // wxWin macros
63 // ----------------------------------------------------------------------------
64
65 #if wxUSE_BASE
66 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
67 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
68 #endif // wxUSE_BASE
69
70 #if wxUSE_GUI
71 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
91 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
92 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
93 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
94 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
95 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
96 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
97 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
98 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
99 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
100 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
101 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
102 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
103 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
104 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
105 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
106 #endif // wxUSE_GUI
107
108 #if wxUSE_BASE
109
110 const wxEventTable *wxEvtHandler::GetEventTable() const
111 { return &wxEvtHandler::sm_eventTable; }
112
113 const wxEventTable wxEvtHandler::sm_eventTable =
114 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
115
116 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
117 { return wxEvtHandler::sm_eventHashTable; }
118
119 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
120
121 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
122 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
123
124
125 #ifdef __WXDEBUG__
126 // Clear up event hash table contents or we can get problems
127 // when C++ is cleaning up the static object
128 class wxEventTableEntryModule: public wxModule
129 {
130 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
131 public:
132 wxEventTableEntryModule() {}
133 bool OnInit() { return true; }
134 void OnExit()
135 {
136 wxEventHashTable::ClearAll();
137 }
138 };
139 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
140 #endif
141
142 // ----------------------------------------------------------------------------
143 // global variables
144 // ----------------------------------------------------------------------------
145
146 // To put pending event handlers
147 wxList *wxPendingEvents = (wxList *)NULL;
148
149 #if wxUSE_THREADS
150 // protects wxPendingEvents list
151 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
152 #endif
153
154 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
155
156 // common event types are defined here, other event types are defined by the
157 // components which use them
158
159 const wxEventType wxEVT_FIRST = 10000;
160 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
161
162 DEFINE_EVENT_TYPE(wxEVT_NULL)
163 DEFINE_EVENT_TYPE(wxEVT_IDLE)
164 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
165
166 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
167
168 #endif // wxUSE_BASE
169
170 #if wxUSE_GUI
171
172 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
173
174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
182 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
183 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
184 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
185 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
186 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
187 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
188 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
189 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
190
191 // Sockets and timers send events, too
192 DEFINE_EVENT_TYPE(wxEVT_TIMER)
193
194 // Mouse event types
195 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
196 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
197 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
198 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
199 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
200 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
201 DEFINE_EVENT_TYPE(wxEVT_MOTION)
202 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
203 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
204 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
205 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
206 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
207 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
208 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
209 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
210 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
211
212 // Non-client mouse events
213 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
214 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
215 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
216 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
217 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
218 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
219 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
220 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
221 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
222 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
223 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
224 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
225
226 // Character input event type
227 DEFINE_EVENT_TYPE(wxEVT_CHAR)
228 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
229 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
230 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
231 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
232 #if wxUSE_HOTKEY
233 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
234 #endif
235
236 // Set cursor event
237 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
238
239 // wxScrollbar and wxSlider event identifiers
240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
244 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
245 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
246 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
247 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
248 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
249
250 // see comments in wx/event.h, near wxEVT_SCROLL_ENDSCROLL declaration
251 #if wxCHECK_VERSION(2, 7, 0)
252 #error "Remove the line below, not needed any more"
253 #endif
254 const wxEventType wxEVT_SCROLL_ENDSCROLL = wxEVT_SCROLL_CHANGED;
255
256 // Scroll events from wxWindow
257 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
258 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
259 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
260 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
261 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
262 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
263 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
264 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
265
266 // System events
267 DEFINE_EVENT_TYPE(wxEVT_SIZE)
268 DEFINE_EVENT_TYPE(wxEVT_SIZING)
269 DEFINE_EVENT_TYPE(wxEVT_MOVE)
270 DEFINE_EVENT_TYPE(wxEVT_MOVING)
271 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
272 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
273 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
274 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
275 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
276 DEFINE_EVENT_TYPE(wxEVT_POWER)
277 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
278 DEFINE_EVENT_TYPE(wxEVT_CREATE)
279 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
280 DEFINE_EVENT_TYPE(wxEVT_SHOW)
281 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
282 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
283 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
284 DEFINE_EVENT_TYPE(wxEVT_PAINT)
285 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
286 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
287 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
288 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
289 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
290 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
291 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
292 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
293 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
294 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
295 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
296 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
297 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
298 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
299 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
300 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
301 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
302 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
303 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
304 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
305 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
306 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
307
308 // Generic command events
309 // Note: a click is a higher-level event than button down/up
310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
313 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
314 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
315 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
316 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
317
318 // Help events
319 DEFINE_EVENT_TYPE(wxEVT_HELP)
320 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
321
322 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
323
324 #endif // wxUSE_GUI
325
326 #if wxUSE_BASE
327
328 // ============================================================================
329 // implementation
330 // ============================================================================
331
332 // ----------------------------------------------------------------------------
333 // event initialization
334 // ----------------------------------------------------------------------------
335
336 int wxNewEventType()
337 {
338 // MT-FIXME
339 static int s_lastUsedEventType = wxEVT_FIRST;
340
341 return s_lastUsedEventType++;
342 }
343
344 // ----------------------------------------------------------------------------
345 // wxEvent
346 // ----------------------------------------------------------------------------
347
348 /*
349 * General wxWidgets events, covering
350 * all interesting things that might happen (button clicking, resizing,
351 * setting text in widgets, etc.).
352 *
353 * For each completely new event type, derive a new event class.
354 *
355 */
356
357 wxEvent::wxEvent(int theId, wxEventType commandType )
358 {
359 m_eventType = commandType;
360 m_eventObject = (wxObject *) NULL;
361 m_timeStamp = 0;
362 m_id = theId;
363 m_skipped = false;
364 m_callbackUserData = (wxObject *) NULL;
365 m_isCommandEvent = false;
366 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
367 }
368
369 wxEvent::wxEvent(const wxEvent &src)
370 : wxObject()
371 , m_eventObject(src.m_eventObject)
372 , m_eventType(src.m_eventType)
373 , m_timeStamp(src.m_timeStamp)
374 , m_id(src.m_id)
375 , m_callbackUserData(src.m_callbackUserData)
376 , m_propagationLevel(src.m_propagationLevel)
377 , m_skipped(src.m_skipped)
378 , m_isCommandEvent(src.m_isCommandEvent)
379 {
380 }
381
382 #endif // wxUSE_BASE
383
384 #if wxUSE_GUI
385
386 /*
387 * Command events
388 *
389 */
390
391 #ifdef __VISUALC__
392 // 'this' : used in base member initializer list (for m_commandString)
393 #pragma warning(disable:4355)
394 #endif
395
396 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
397 : wxEvent(theId, commandType)
398 #if WXWIN_COMPATIBILITY_2_4
399 , m_commandString(this)
400 #endif
401 {
402 m_clientData = (char *) NULL;
403 m_clientObject = (wxClientData *) NULL;
404 m_extraLong = 0;
405 m_commandInt = 0;
406 m_isCommandEvent = true;
407
408 // the command events are propagated upwards by default
409 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
410 }
411
412 #ifdef __VISUALC__
413 #pragma warning(default:4355)
414 #endif
415
416 wxString wxCommandEvent::GetString() const
417 {
418 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
419 return m_cmdString;
420 else
421 {
422 #if wxUSE_TEXTCTRL
423 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
424 if(txt)
425 return txt->GetValue();
426 else
427 #endif // wxUSE_TEXTCTRL
428 return m_cmdString;
429 }
430 }
431
432 /*
433 * UI update events
434 */
435
436 #if wxUSE_LONGLONG
437 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
438 #endif
439
440 long wxUpdateUIEvent::sm_updateInterval = 0;
441
442 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
443
444 // Can we update?
445 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
446 {
447 // Don't update if we've switched global updating off
448 // and this window doesn't support updates.
449 if (win &&
450 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
451 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
452 return false;
453
454 if (sm_updateInterval == -1)
455 return false;
456
457 if (sm_updateInterval == 0)
458 return true;
459
460 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
461 wxLongLong now = wxGetLocalTimeMillis();
462 if (now > (sm_lastUpdate + sm_updateInterval))
463 {
464 return true;
465 }
466
467 return false;
468 #else
469 // If we don't have wxStopWatch or wxLongLong, we
470 // should err on the safe side and update now anyway.
471 return true;
472 #endif
473 }
474
475 // Reset the update time to provide a delay until the next
476 // time we should update
477 void wxUpdateUIEvent::ResetUpdateTime()
478 {
479 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
480 if (sm_updateInterval > 0)
481 {
482 wxLongLong now = wxGetLocalTimeMillis();
483 if (now > (sm_lastUpdate + sm_updateInterval))
484 {
485 sm_lastUpdate = now;
486 }
487 }
488 #endif
489 }
490
491 /*
492 * Idle events
493 */
494
495 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
496
497 // Can we send an idle event?
498 bool wxIdleEvent::CanSend(wxWindow* win)
499 {
500 // Don't update if we've switched global updating off
501 // and this window doesn't support updates.
502 if (win &&
503 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
504 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
505 return false;
506
507 return true;
508 }
509
510 /*
511 * Scroll events
512 */
513
514 wxScrollEvent::wxScrollEvent(wxEventType commandType,
515 int id,
516 int pos,
517 int orient)
518 : wxCommandEvent(commandType, id)
519 {
520 m_extraLong = orient;
521 m_commandInt = pos;
522 }
523
524 /*
525 * ScrollWin events
526 */
527
528 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
529 int pos,
530 int orient)
531 {
532 m_eventType = commandType;
533 m_extraLong = orient;
534 m_commandInt = pos;
535 }
536
537 /*
538 * Mouse events
539 *
540 */
541
542 wxMouseEvent::wxMouseEvent(wxEventType commandType)
543 {
544 m_eventType = commandType;
545 m_metaDown = false;
546 m_altDown = false;
547 m_controlDown = false;
548 m_shiftDown = false;
549 m_leftDown = false;
550 m_rightDown = false;
551 m_middleDown = false;
552 m_x = 0;
553 m_y = 0;
554 m_wheelRotation = 0;
555 m_wheelDelta = 0;
556 m_linesPerAction = 0;
557 }
558
559 void wxMouseEvent::Assign(const wxMouseEvent& event)
560 {
561 m_eventType = event.m_eventType;
562
563 m_x = event.m_x;
564 m_y = event.m_y;
565
566 m_leftDown = event.m_leftDown;
567 m_middleDown = event.m_middleDown;
568 m_rightDown = event.m_rightDown;
569
570 m_controlDown = event.m_controlDown;
571 m_shiftDown = event.m_shiftDown;
572 m_altDown = event.m_altDown;
573 m_metaDown = event.m_metaDown;
574
575 m_wheelRotation = event.m_wheelRotation;
576 m_wheelDelta = event.m_wheelDelta;
577 m_linesPerAction = event.m_linesPerAction;
578 }
579
580 // return true if was a button dclick event
581 bool wxMouseEvent::ButtonDClick(int but) const
582 {
583 switch (but)
584 {
585 default:
586 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
587 // fall through
588
589 case wxMOUSE_BTN_ANY:
590 return (LeftDClick() || MiddleDClick() || RightDClick());
591
592 case wxMOUSE_BTN_LEFT:
593 return LeftDClick();
594
595 case wxMOUSE_BTN_MIDDLE:
596 return MiddleDClick();
597
598 case wxMOUSE_BTN_RIGHT:
599 return RightDClick();
600 }
601 }
602
603 // return true if was a button down event
604 bool wxMouseEvent::ButtonDown(int but) const
605 {
606 switch (but)
607 {
608 default:
609 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
610 // fall through
611
612 case wxMOUSE_BTN_ANY:
613 return (LeftDown() || MiddleDown() || RightDown());
614
615 case wxMOUSE_BTN_LEFT:
616 return LeftDown();
617
618 case wxMOUSE_BTN_MIDDLE:
619 return MiddleDown();
620
621 case wxMOUSE_BTN_RIGHT:
622 return RightDown();
623 }
624 }
625
626 // return true if was a button up event
627 bool wxMouseEvent::ButtonUp(int but) const
628 {
629 switch (but)
630 {
631 default:
632 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
633 // fall through
634
635 case wxMOUSE_BTN_ANY:
636 return (LeftUp() || MiddleUp() || RightUp());
637
638 case wxMOUSE_BTN_LEFT:
639 return LeftUp();
640
641 case wxMOUSE_BTN_MIDDLE:
642 return MiddleUp();
643
644 case wxMOUSE_BTN_RIGHT:
645 return RightUp();
646 }
647 }
648
649 // return true if the given button is currently changing state
650 bool wxMouseEvent::Button(int but) const
651 {
652 switch (but)
653 {
654 default:
655 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
656 // fall through
657
658 case wxMOUSE_BTN_ANY:
659 return ButtonUp(wxMOUSE_BTN_ANY) ||
660 ButtonDown(wxMOUSE_BTN_ANY) ||
661 ButtonDClick(wxMOUSE_BTN_ANY);
662
663 case wxMOUSE_BTN_LEFT:
664 return LeftDown() || LeftUp() || LeftDClick();
665
666 case wxMOUSE_BTN_MIDDLE:
667 return MiddleDown() || MiddleUp() || MiddleDClick();
668
669 case wxMOUSE_BTN_RIGHT:
670 return RightDown() || RightUp() || RightDClick();
671 }
672 }
673
674 bool wxMouseEvent::ButtonIsDown(int but) const
675 {
676 switch (but)
677 {
678 default:
679 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
680 // fall through
681
682 case wxMOUSE_BTN_ANY:
683 return LeftIsDown() || MiddleIsDown() || RightIsDown();
684
685 case wxMOUSE_BTN_LEFT:
686 return LeftIsDown();
687
688 case wxMOUSE_BTN_MIDDLE:
689 return MiddleIsDown();
690
691 case wxMOUSE_BTN_RIGHT:
692 return RightIsDown();
693 }
694 }
695
696 int wxMouseEvent::GetButton() const
697 {
698 for ( int i = 1; i <= 3; i++ )
699 {
700 if ( Button(i) )
701 {
702 return i;
703 }
704 }
705
706 return wxMOUSE_BTN_NONE;
707 }
708
709 // Find the logical position of the event given the DC
710 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
711 {
712 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
713 return pt;
714 }
715
716
717 /*
718 * Keyboard event
719 *
720 */
721
722 wxKeyEvent::wxKeyEvent(wxEventType type)
723 {
724 m_eventType = type;
725 m_shiftDown = false;
726 m_controlDown = false;
727 m_metaDown = false;
728 m_altDown = false;
729 m_keyCode = 0;
730 m_scanCode = 0;
731 #if wxUSE_UNICODE
732 m_uniChar = 0;
733 #endif
734 }
735
736 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
737 : wxEvent(evt)
738 {
739 m_x = evt.m_x;
740 m_y = evt.m_y;
741
742 m_keyCode = evt.m_keyCode;
743
744 m_controlDown = evt.m_controlDown;
745 m_shiftDown = evt.m_shiftDown;
746 m_altDown = evt.m_altDown;
747 m_metaDown = evt.m_metaDown;
748 m_scanCode = evt.m_scanCode;
749 m_rawCode = evt.m_rawCode;
750 m_rawFlags = evt.m_rawFlags;
751
752 #if wxUSE_UNICODE
753 m_uniChar = evt.m_uniChar;
754 #endif
755 }
756
757 long wxKeyEvent::KeyCode() const
758 {
759 return m_keyCode;
760 }
761
762 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
763 {
764 SetEventType(wxEVT_CREATE);
765 SetEventObject(win);
766 }
767
768 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
769 {
770 SetEventType(wxEVT_DESTROY);
771 SetEventObject(win);
772 }
773
774 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
775 : wxCommandEvent(wxEVT_CHILD_FOCUS)
776 {
777 SetEventObject(win);
778 }
779
780 #endif // wxUSE_GUI
781
782
783 #if wxUSE_BASE
784
785 // ----------------------------------------------------------------------------
786 // wxEventHashTable
787 // ----------------------------------------------------------------------------
788
789 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
790
791 wxEventHashTable* wxEventHashTable::sm_first = NULL;
792
793 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
794 : m_table(table),
795 m_rebuildHash(true)
796 {
797 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
798
799 m_next = sm_first;
800 if (m_next)
801 m_next->m_previous = this;
802 sm_first = this;
803 }
804
805 wxEventHashTable::~wxEventHashTable()
806 {
807 if (m_next)
808 m_next->m_previous = m_previous;
809 if (m_previous)
810 m_previous->m_next = m_next;
811 if (sm_first == this)
812 sm_first = m_next;
813
814 Clear();
815 }
816
817 void wxEventHashTable::Clear()
818 {
819 size_t i;
820 for(i = 0; i < m_size; i++)
821 {
822 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
823 if (eTTnode)
824 {
825 delete eTTnode;
826 }
827 }
828
829 // Necessary in order to not invoke the
830 // overloaded delete operator when statics are cleaned up
831 if (m_eventTypeTable)
832 delete[] m_eventTypeTable;
833
834 m_eventTypeTable = NULL;
835 m_size = 0;
836 }
837
838 // Clear all tables
839 void wxEventHashTable::ClearAll()
840 {
841 wxEventHashTable* table = sm_first;
842 while (table)
843 {
844 table->Clear();
845 table = table->m_next;
846 }
847 }
848
849 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
850 {
851 if (m_rebuildHash)
852 {
853 InitHashTable();
854 m_rebuildHash = false;
855 }
856
857 if (!m_eventTypeTable)
858 return false;
859
860 // Find all entries for the given event type.
861 wxEventType eventType = event.GetEventType();
862 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
863 if (eTTnode && eTTnode->eventType == eventType)
864 {
865 // Now start the search for an event handler
866 // that can handle an event with the given ID.
867 const wxEventTableEntryPointerArray&
868 eventEntryTable = eTTnode->eventEntryTable;
869
870 const size_t count = eventEntryTable.GetCount();
871 for (size_t n = 0; n < count; n++)
872 {
873 if ( wxEvtHandler::
874 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
875 {
876 return true;
877 }
878 }
879 }
880
881 return false;
882 }
883
884 void wxEventHashTable::InitHashTable()
885 {
886 // Loop over the event tables and all its base tables.
887 const wxEventTable *table = &m_table;
888 while (table)
889 {
890 // Retrieve all valid event handler entries
891 const wxEventTableEntry *entry = table->entries;
892 while (entry->m_fn != 0)
893 {
894 // Add the event entry in the Hash.
895 AddEntry(*entry);
896
897 entry++;
898 }
899
900 table = table->baseTable;
901 }
902
903 // Lets free some memory.
904 size_t i;
905 for(i = 0; i < m_size; i++)
906 {
907 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
908 if (eTTnode)
909 {
910 eTTnode->eventEntryTable.Shrink();
911 }
912 }
913 }
914
915 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
916 {
917 // This might happen 'accidentally' as the app is exiting
918 if (!m_eventTypeTable)
919 return;
920
921 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
922 EventTypeTablePointer eTTnode = *peTTnode;
923
924 if (eTTnode)
925 {
926 if (eTTnode->eventType != entry.m_eventType)
927 {
928 // Resize the table!
929 GrowEventTypeTable();
930 // Try again to add it.
931 AddEntry(entry);
932 return;
933 }
934 }
935 else
936 {
937 eTTnode = new EventTypeTable;
938 eTTnode->eventType = entry.m_eventType;
939 *peTTnode = eTTnode;
940 }
941
942 // Fill all hash entries between entry.m_id and entry.m_lastId...
943 eTTnode->eventEntryTable.Add(&entry);
944 }
945
946 void wxEventHashTable::AllocEventTypeTable(size_t size)
947 {
948 m_eventTypeTable = new EventTypeTablePointer[size];
949 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
950 m_size = size;
951 }
952
953 void wxEventHashTable::GrowEventTypeTable()
954 {
955 size_t oldSize = m_size;
956 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
957
958 // TODO: Search the most optimal grow sequence
959 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
960
961 for ( size_t i = 0; i < oldSize; /* */ )
962 {
963 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
964 if (eTToldNode)
965 {
966 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
967 EventTypeTablePointer eTTnode = *peTTnode;
968
969 // Check for collision, we don't want any.
970 if (eTTnode)
971 {
972 GrowEventTypeTable();
973 continue; // Don't increment the counter,
974 // as we still need to add this element.
975 }
976 else
977 {
978 // Get the old value and put it in the new table.
979 *peTTnode = oldEventTypeTable[i];
980 }
981 }
982
983 i++;
984 }
985
986 delete[] oldEventTypeTable;
987 }
988
989
990 // ----------------------------------------------------------------------------
991 // wxEvtHandler
992 // ----------------------------------------------------------------------------
993
994 /*
995 * Event handler
996 */
997
998 wxEvtHandler::wxEvtHandler()
999 {
1000 m_nextHandler = (wxEvtHandler *) NULL;
1001 m_previousHandler = (wxEvtHandler *) NULL;
1002 m_enabled = true;
1003 m_dynamicEvents = (wxList *) NULL;
1004 m_pendingEvents = (wxList *) NULL;
1005 #if wxUSE_THREADS
1006 # if !defined(__VISAGECPP__)
1007 m_eventsLocker = new wxCriticalSection;
1008 # endif
1009 #endif
1010 // no client data (yet)
1011 m_clientData = NULL;
1012 m_clientDataType = wxClientData_None;
1013 }
1014
1015 wxEvtHandler::~wxEvtHandler()
1016 {
1017 // Takes itself out of the list of handlers
1018 if (m_previousHandler)
1019 m_previousHandler->m_nextHandler = m_nextHandler;
1020
1021 if (m_nextHandler)
1022 m_nextHandler->m_previousHandler = m_previousHandler;
1023
1024 if (m_dynamicEvents)
1025 {
1026 wxList::iterator it = m_dynamicEvents->begin(),
1027 en = m_dynamicEvents->end();
1028 for (;it != en; ++it)
1029 {
1030 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1031 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1032 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1033 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1034 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1035
1036 if (entry->m_callbackUserData)
1037 delete entry->m_callbackUserData;
1038 delete entry;
1039 }
1040 delete m_dynamicEvents;
1041 };
1042
1043 delete m_pendingEvents;
1044
1045 #if wxUSE_THREADS
1046 # if !defined(__VISAGECPP__)
1047 delete m_eventsLocker;
1048 # endif
1049
1050 // Remove us from wxPendingEvents if necessary.
1051 if(wxPendingEventsLocker)
1052 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1053 if ( wxPendingEvents )
1054 {
1055 // Delete all occurences of this from the list of pending events
1056 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1057 }
1058 if(wxPendingEventsLocker)
1059 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1060 #endif
1061
1062 // we only delete object data, not untyped
1063 if ( m_clientDataType == wxClientData_Object )
1064 delete m_clientObject;
1065 }
1066
1067 #if wxUSE_THREADS
1068
1069 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1070 {
1071 // check that we are really in a child thread
1072 wxASSERT_MSG( !wxThread::IsMain(),
1073 wxT("use ProcessEvent() in main thread") );
1074
1075 AddPendingEvent(event);
1076
1077 return true;
1078 }
1079
1080 void wxEvtHandler::ClearEventLocker()
1081 {
1082 #if !defined(__VISAGECPP__)
1083 delete m_eventsLocker;
1084 m_eventsLocker = NULL;
1085 #endif
1086 };
1087
1088 #endif // wxUSE_THREADS
1089
1090 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1091 {
1092 // 1) Add event to list of pending events of this event handler
1093
1094 wxEvent *eventCopy = event.Clone();
1095
1096 // we must be able to copy the events here so the event class must
1097 // implement Clone() properly instead of just providing a NULL stab for it
1098 wxCHECK_RET( eventCopy,
1099 _T("events of this type aren't supposed to be posted") );
1100
1101 wxENTER_CRIT_SECT( Lock() );
1102
1103 if ( !m_pendingEvents )
1104 m_pendingEvents = new wxList;
1105
1106 m_pendingEvents->Append(eventCopy);
1107
1108 wxLEAVE_CRIT_SECT( Lock() );
1109
1110 // 2) Add this event handler to list of event handlers that
1111 // have pending events.
1112
1113 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1114
1115 if ( !wxPendingEvents )
1116 wxPendingEvents = new wxList;
1117 wxPendingEvents->Append(this);
1118
1119 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1120
1121 // 3) Inform the system that new pending events are somwehere,
1122 // and that these should be processed in idle time.
1123 wxWakeUpIdle();
1124 }
1125
1126 void wxEvtHandler::ProcessPendingEvents()
1127 {
1128 // this method is only called by wxApp if this handler does have pending
1129 // events
1130 wxCHECK_RET( m_pendingEvents,
1131 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1132
1133 wxENTER_CRIT_SECT( Lock() );
1134
1135 // we leave the loop once we have processed all events that were present at
1136 // the start of ProcessPendingEvents because otherwise we could get into
1137 // infinite loop if the pending event handler execution resulted in another
1138 // event being posted
1139 size_t n = m_pendingEvents->size();
1140 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1141 node;
1142 node = m_pendingEvents->GetFirst() )
1143 {
1144 wxEvent *event = (wxEvent *)node->GetData();
1145
1146 m_pendingEvents->Erase(node);
1147
1148 wxLEAVE_CRIT_SECT( Lock() );
1149
1150 ProcessEvent(*event);
1151 delete event;
1152
1153 wxENTER_CRIT_SECT( Lock() );
1154
1155 if ( !--n )
1156 break;
1157 }
1158
1159 wxLEAVE_CRIT_SECT( Lock() );
1160 }
1161
1162 /*
1163 * Event table stuff
1164 */
1165 /* static */ bool
1166 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1167 wxEvtHandler *handler,
1168 wxEvent& event)
1169 {
1170 int tableId1 = entry.m_id,
1171 tableId2 = entry.m_lastId;
1172
1173 // match only if the event type is the same and the id is either -1 in
1174 // the event table (meaning "any") or the event id matches the id
1175 // specified in the event table either exactly or by falling into
1176 // range between first and last
1177 if ((tableId1 == wxID_ANY) ||
1178 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1179 (tableId2 != wxID_ANY &&
1180 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1181 {
1182 event.Skip(false);
1183 event.m_callbackUserData = entry.m_callbackUserData;
1184
1185 #if wxUSE_EXCEPTIONS
1186 if ( wxTheApp )
1187 {
1188 // call the handler via wxApp method which allows the user to catch
1189 // any exceptions which may be thrown by any handler in the program
1190 // in one place
1191 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1192 }
1193 else
1194 #endif // wxUSE_EXCEPTIONS
1195 {
1196 // no need for an extra virtual function call
1197 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1198 }
1199
1200 if (!event.GetSkipped())
1201 return true;
1202 }
1203
1204 return false;
1205 }
1206
1207 bool wxEvtHandler::TryParent(wxEvent& event)
1208 {
1209 if ( wxTheApp && (this != wxTheApp) )
1210 {
1211 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1212 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1213 // processed appropriately via SearchEventTable.
1214 if ( event.GetEventType() != wxEVT_IDLE )
1215 {
1216 if ( wxTheApp->ProcessEvent(event) )
1217 return true;
1218 }
1219 }
1220
1221 return false;
1222 }
1223
1224 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1225 {
1226 // allow the application to hook into event processing
1227 if ( wxTheApp )
1228 {
1229 int rc = wxTheApp->FilterEvent(event);
1230 if ( rc != -1 )
1231 {
1232 wxASSERT_MSG( rc == 1 || rc == 0,
1233 _T("unexpected wxApp::FilterEvent return value") );
1234
1235 return rc != 0;
1236 }
1237 //else: proceed normally
1238 }
1239
1240 // An event handler can be enabled or disabled
1241 if ( GetEvtHandlerEnabled() )
1242 {
1243 // if we have a validator, it has higher priority than our own event
1244 // table
1245 if ( TryValidator(event) )
1246 return true;
1247
1248 // Handle per-instance dynamic event tables first
1249 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1250 return true;
1251
1252 // Then static per-class event tables
1253 if ( GetEventHashTable().HandleEvent(event, this) )
1254 return true;
1255 }
1256
1257 // Try going down the event handler chain
1258 if ( GetNextHandler() )
1259 {
1260 if ( GetNextHandler()->ProcessEvent(event) )
1261 return true;
1262 }
1263
1264 // Finally propagate the event upwards the window chain and/or to the
1265 // application object as necessary
1266 return TryParent(event);
1267 }
1268
1269
1270 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1271 {
1272 const wxEventType eventType = event.GetEventType();
1273 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1274 {
1275 const wxEventTableEntry& entry = table.entries[i];
1276 if ( eventType == entry.m_eventType )
1277 {
1278 if ( ProcessEventIfMatches(entry, this, event) )
1279 return true;
1280 }
1281 }
1282
1283 return false;
1284 }
1285
1286 void wxEvtHandler::Connect( int id, int lastId,
1287 int eventType,
1288 wxObjectEventFunction func,
1289 wxObject *userData,
1290 wxEvtHandler* eventSink )
1291 {
1292 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1293 wxEventTableEntry *entry = new wxEventTableEntry;
1294 entry->m_eventType = eventType;
1295 entry->m_id = id;
1296 entry->m_lastId = lastId;
1297 entry->m_fn = func;
1298 entry->m_callbackUserData = userData;
1299 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1300 wxDynamicEventTableEntry *entry =
1301 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1302 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1303
1304 if (!m_dynamicEvents)
1305 m_dynamicEvents = new wxList;
1306
1307 // Insert at the front of the list so most recent additions are found first
1308 m_dynamicEvents->Insert( (wxObject*) entry );
1309 }
1310
1311 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1312 wxObjectEventFunction func,
1313 wxObject *userData,
1314 wxEvtHandler* eventSink )
1315 {
1316 if (!m_dynamicEvents)
1317 return false;
1318
1319 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1320 while (node)
1321 {
1322 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1323 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1324 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1325 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1326 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1327
1328 if ((entry->m_id == id) &&
1329 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1330 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1331 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1332 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1333 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1334 {
1335 if (entry->m_callbackUserData)
1336 delete entry->m_callbackUserData;
1337 m_dynamicEvents->Erase( node );
1338 delete entry;
1339 return true;
1340 }
1341 node = node->GetNext();
1342 }
1343 return false;
1344 }
1345
1346 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1347 {
1348 wxCHECK_MSG( m_dynamicEvents, false,
1349 wxT("caller should check that we have dynamic events") );
1350
1351 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1352 while (node)
1353 {
1354 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1355 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1356 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1357 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1358 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1359
1360 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1361 {
1362 wxEvtHandler *handler =
1363 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1364 entry->m_eventSink ? entry->m_eventSink
1365 :
1366 #endif
1367 this;
1368
1369 if ( ProcessEventIfMatches(*entry, handler, event) )
1370 {
1371 return true;
1372 }
1373 }
1374
1375 node = node->GetNext();
1376 }
1377
1378 return false;
1379 };
1380
1381 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1382 {
1383 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1384 wxT("can't have both object and void client data") );
1385
1386 if ( m_clientObject )
1387 delete m_clientObject;
1388
1389 m_clientObject = data;
1390 m_clientDataType = wxClientData_Object;
1391 }
1392
1393 wxClientData *wxEvtHandler::DoGetClientObject() const
1394 {
1395 // it's not an error to call GetClientObject() on a window which doesn't
1396 // have client data at all - NULL will be returned
1397 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1398 wxT("this window doesn't have object client data") );
1399
1400 return m_clientObject;
1401 }
1402
1403 void wxEvtHandler::DoSetClientData( void *data )
1404 {
1405 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1406 wxT("can't have both object and void client data") );
1407
1408 m_clientData = data;
1409 m_clientDataType = wxClientData_Void;
1410 }
1411
1412 void *wxEvtHandler::DoGetClientData() const
1413 {
1414 // it's not an error to call GetClientData() on a window which doesn't have
1415 // client data at all - NULL will be returned
1416 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1417 wxT("this window doesn't have void client data") );
1418
1419 return m_clientData;
1420 }
1421
1422 #endif // wxUSE_BASE
1423
1424 #if wxUSE_GUI
1425
1426 // Find a window with the focus, that is also a descendant of the given window.
1427 // This is used to determine the window to initially send commands to.
1428 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1429 {
1430 // Process events starting with the window with the focus, if any.
1431 wxWindow* focusWin = wxWindow::FindFocus();
1432 wxWindow* win = focusWin;
1433
1434 // Check if this is a descendant of this frame.
1435 // If not, win will be set to NULL.
1436 while (win)
1437 {
1438 if (win == ancestor)
1439 break;
1440 else
1441 win = win->GetParent();
1442 }
1443 if (win == (wxWindow*) NULL)
1444 focusWin = (wxWindow*) NULL;
1445
1446 return focusWin;
1447 }
1448
1449 #endif // wxUSE_GUI
wxWidgets (Impactor)