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[wxWidgets.git] / src / common / event.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/event.cpp
3 // Purpose: Event classes
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #ifndef WX_PRECOMP
28 #include "wx/app.h"
29 #include "wx/list.h"
30
31 #if wxUSE_GUI
32 #include "wx/control.h"
33 #include "wx/utils.h"
34 #include "wx/dc.h"
35 #include "wx/textctrl.h"
36 #endif // wxUSE_GUI
37 #endif
38
39 #include "wx/event.h"
40 #include "wx/module.h"
41
42 #if wxUSE_GUI
43 #include "wx/validate.h"
44 #if wxUSE_STOPWATCH
45 #include "wx/stopwatch.h"
46 #endif
47 #endif // wxUSE_GUI
48
49 // ----------------------------------------------------------------------------
50 // wxWin macros
51 // ----------------------------------------------------------------------------
52
53 #if wxUSE_BASE
54 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
55 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
56 #endif // wxUSE_BASE
57
58 #if wxUSE_GUI
59 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
60 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
61 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
62 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
63 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
64 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
65 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
66 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
67 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
68 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
69 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
70 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
91 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
92 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
93 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
94 #endif // wxUSE_GUI
95
96 #if wxUSE_BASE
97
98 const wxEventTable *wxEvtHandler::GetEventTable() const
99 { return &wxEvtHandler::sm_eventTable; }
100
101 const wxEventTable wxEvtHandler::sm_eventTable =
102 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
103
104 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
105 { return wxEvtHandler::sm_eventHashTable; }
106
107 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
108
109 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
110 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
111
112
113 #ifdef __WXDEBUG__
114 // Clear up event hash table contents or we can get problems
115 // when C++ is cleaning up the static object
116 class wxEventTableEntryModule: public wxModule
117 {
118 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
119 public:
120 wxEventTableEntryModule() {}
121 bool OnInit() { return true; }
122 void OnExit()
123 {
124 wxEventHashTable::ClearAll();
125 }
126 };
127 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
128 #endif
129
130 // ----------------------------------------------------------------------------
131 // global variables
132 // ----------------------------------------------------------------------------
133
134 // To put pending event handlers
135 wxList *wxPendingEvents = (wxList *)NULL;
136
137 #if wxUSE_THREADS
138 // protects wxPendingEvents list
139 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
140 #endif
141
142 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
143
144 // common event types are defined here, other event types are defined by the
145 // components which use them
146
147 const wxEventType wxEVT_FIRST = 10000;
148 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
149
150 DEFINE_EVENT_TYPE(wxEVT_NULL)
151 DEFINE_EVENT_TYPE(wxEVT_IDLE)
152 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
153
154 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
155
156 #endif // wxUSE_BASE
157
158 #if wxUSE_GUI
159
160 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
161
162 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
163 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
178
179 // Sockets and timers send events, too
180 DEFINE_EVENT_TYPE(wxEVT_TIMER)
181
182 // Mouse event types
183 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
184 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
185 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
186 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
187 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
188 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
189 DEFINE_EVENT_TYPE(wxEVT_MOTION)
190 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
191 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
192 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
193 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
194 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
195 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
196 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
197 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
198 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
199
200 // Non-client mouse events
201 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
202 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
203 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
204 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
205 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
206 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
207 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
208 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
209 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
210 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
211 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
212 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
213
214 // Character input event type
215 DEFINE_EVENT_TYPE(wxEVT_CHAR)
216 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
217 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
218 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
219 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
220 #if wxUSE_HOTKEY
221 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
222 #endif
223
224 // Set cursor event
225 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
226
227 // wxScrollbar and wxSlider event identifiers
228 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
229 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
230 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
231 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
232 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
233 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
234 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
235 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
237
238 // Scroll events from wxWindow
239 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
240 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
241 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
242 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
243 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
244 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
245 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
246 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
247
248 // System events
249 DEFINE_EVENT_TYPE(wxEVT_SIZE)
250 DEFINE_EVENT_TYPE(wxEVT_SIZING)
251 DEFINE_EVENT_TYPE(wxEVT_MOVE)
252 DEFINE_EVENT_TYPE(wxEVT_MOVING)
253 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
254 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
255 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
256 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
257 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
258 DEFINE_EVENT_TYPE(wxEVT_POWER)
259 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
260 DEFINE_EVENT_TYPE(wxEVT_CREATE)
261 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
262 DEFINE_EVENT_TYPE(wxEVT_SHOW)
263 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
264 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
265 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
266 DEFINE_EVENT_TYPE(wxEVT_PAINT)
267 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
268 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
269 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
270 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
271 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
272 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
273 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
274 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
275 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
276 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
277 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
278 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
279 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
280 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
281 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
282 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
283 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
284 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
285 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
286 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
287 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
288 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
289
290 // Generic command events
291 // Note: a click is a higher-level event than button down/up
292 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
293 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
294 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
295 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
296 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
297 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
298 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
299
300 // Help events
301 DEFINE_EVENT_TYPE(wxEVT_HELP)
302 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
303
304 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
305
306 #endif // wxUSE_GUI
307
308 #if wxUSE_BASE
309
310 // ============================================================================
311 // implementation
312 // ============================================================================
313
314 // ----------------------------------------------------------------------------
315 // event initialization
316 // ----------------------------------------------------------------------------
317
318 int wxNewEventType()
319 {
320 // MT-FIXME
321 static int s_lastUsedEventType = wxEVT_FIRST;
322
323 return s_lastUsedEventType++;
324 }
325
326 // ----------------------------------------------------------------------------
327 // wxEvent
328 // ----------------------------------------------------------------------------
329
330 /*
331 * General wxWidgets events, covering
332 * all interesting things that might happen (button clicking, resizing,
333 * setting text in widgets, etc.).
334 *
335 * For each completely new event type, derive a new event class.
336 *
337 */
338
339 wxEvent::wxEvent(int theId, wxEventType commandType )
340 {
341 m_eventType = commandType;
342 m_eventObject = (wxObject *) NULL;
343 m_timeStamp = 0;
344 m_id = theId;
345 m_skipped = false;
346 m_callbackUserData = (wxObject *) NULL;
347 m_isCommandEvent = false;
348 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
349 }
350
351 wxEvent::wxEvent(const wxEvent &src)
352 : wxObject()
353 , m_eventObject(src.m_eventObject)
354 , m_eventType(src.m_eventType)
355 , m_timeStamp(src.m_timeStamp)
356 , m_id(src.m_id)
357 , m_callbackUserData(src.m_callbackUserData)
358 , m_propagationLevel(src.m_propagationLevel)
359 , m_skipped(src.m_skipped)
360 , m_isCommandEvent(src.m_isCommandEvent)
361 {
362 }
363
364 #endif // wxUSE_BASE
365
366 #if wxUSE_GUI
367
368 /*
369 * Command events
370 *
371 */
372
373 #ifdef __VISUALC__
374 // 'this' : used in base member initializer list (for m_commandString)
375 #pragma warning(disable:4355)
376 #endif
377
378 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
379 : wxEvent(theId, commandType)
380 #if WXWIN_COMPATIBILITY_2_4
381 , m_commandString(this)
382 #endif
383 {
384 m_clientData = (char *) NULL;
385 m_clientObject = (wxClientData *) NULL;
386 m_extraLong = 0;
387 m_commandInt = 0;
388 m_isCommandEvent = true;
389
390 // the command events are propagated upwards by default
391 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
392 }
393
394 #ifdef __VISUALC__
395 #pragma warning(default:4355)
396 #endif
397
398 wxString wxCommandEvent::GetString() const
399 {
400 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
401 return m_cmdString;
402 else
403 {
404 #if wxUSE_TEXTCTRL
405 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
406 if(txt)
407 return txt->GetValue();
408 else
409 #endif // wxUSE_TEXTCTRL
410 return m_cmdString;
411 }
412 }
413
414 /*
415 * UI update events
416 */
417
418 #if wxUSE_LONGLONG
419 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
420 #endif
421
422 long wxUpdateUIEvent::sm_updateInterval = 0;
423
424 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
425
426 // Can we update?
427 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
428 {
429 // Don't update if we've switched global updating off
430 // and this window doesn't support updates.
431 if (win &&
432 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
433 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
434 return false;
435
436 if (sm_updateInterval == -1)
437 return false;
438
439 if (sm_updateInterval == 0)
440 return true;
441
442 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
443 wxLongLong now = wxGetLocalTimeMillis();
444 if (now > (sm_lastUpdate + sm_updateInterval))
445 {
446 return true;
447 }
448
449 return false;
450 #else
451 // If we don't have wxStopWatch or wxLongLong, we
452 // should err on the safe side and update now anyway.
453 return true;
454 #endif
455 }
456
457 // Reset the update time to provide a delay until the next
458 // time we should update
459 void wxUpdateUIEvent::ResetUpdateTime()
460 {
461 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
462 if (sm_updateInterval > 0)
463 {
464 wxLongLong now = wxGetLocalTimeMillis();
465 if (now > (sm_lastUpdate + sm_updateInterval))
466 {
467 sm_lastUpdate = now;
468 }
469 }
470 #endif
471 }
472
473 /*
474 * Idle events
475 */
476
477 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
478
479 // Can we send an idle event?
480 bool wxIdleEvent::CanSend(wxWindow* win)
481 {
482 // Don't update if we've switched global updating off
483 // and this window doesn't support updates.
484 if (win &&
485 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
486 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
487 return false;
488
489 return true;
490 }
491
492 /*
493 * Scroll events
494 */
495
496 wxScrollEvent::wxScrollEvent(wxEventType commandType,
497 int id,
498 int pos,
499 int orient)
500 : wxCommandEvent(commandType, id)
501 {
502 m_extraLong = orient;
503 m_commandInt = pos;
504 }
505
506 /*
507 * ScrollWin events
508 */
509
510 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
511 int pos,
512 int orient)
513 {
514 m_eventType = commandType;
515 m_extraLong = orient;
516 m_commandInt = pos;
517 }
518
519 /*
520 * Mouse events
521 *
522 */
523
524 wxMouseEvent::wxMouseEvent(wxEventType commandType)
525 {
526 m_eventType = commandType;
527 m_metaDown = false;
528 m_altDown = false;
529 m_controlDown = false;
530 m_shiftDown = false;
531 m_leftDown = false;
532 m_rightDown = false;
533 m_middleDown = false;
534 m_x = 0;
535 m_y = 0;
536 m_wheelRotation = 0;
537 m_wheelDelta = 0;
538 m_linesPerAction = 0;
539 }
540
541 void wxMouseEvent::Assign(const wxMouseEvent& event)
542 {
543 m_eventType = event.m_eventType;
544
545 m_x = event.m_x;
546 m_y = event.m_y;
547
548 m_leftDown = event.m_leftDown;
549 m_middleDown = event.m_middleDown;
550 m_rightDown = event.m_rightDown;
551
552 m_controlDown = event.m_controlDown;
553 m_shiftDown = event.m_shiftDown;
554 m_altDown = event.m_altDown;
555 m_metaDown = event.m_metaDown;
556
557 m_wheelRotation = event.m_wheelRotation;
558 m_wheelDelta = event.m_wheelDelta;
559 m_linesPerAction = event.m_linesPerAction;
560 }
561
562 // return true if was a button dclick event
563 bool wxMouseEvent::ButtonDClick(int but) const
564 {
565 switch (but)
566 {
567 default:
568 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
569 // fall through
570
571 case wxMOUSE_BTN_ANY:
572 return (LeftDClick() || MiddleDClick() || RightDClick());
573
574 case wxMOUSE_BTN_LEFT:
575 return LeftDClick();
576
577 case wxMOUSE_BTN_MIDDLE:
578 return MiddleDClick();
579
580 case wxMOUSE_BTN_RIGHT:
581 return RightDClick();
582 }
583 }
584
585 // return true if was a button down event
586 bool wxMouseEvent::ButtonDown(int but) const
587 {
588 switch (but)
589 {
590 default:
591 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
592 // fall through
593
594 case wxMOUSE_BTN_ANY:
595 return (LeftDown() || MiddleDown() || RightDown());
596
597 case wxMOUSE_BTN_LEFT:
598 return LeftDown();
599
600 case wxMOUSE_BTN_MIDDLE:
601 return MiddleDown();
602
603 case wxMOUSE_BTN_RIGHT:
604 return RightDown();
605 }
606 }
607
608 // return true if was a button up event
609 bool wxMouseEvent::ButtonUp(int but) const
610 {
611 switch (but)
612 {
613 default:
614 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
615 // fall through
616
617 case wxMOUSE_BTN_ANY:
618 return (LeftUp() || MiddleUp() || RightUp());
619
620 case wxMOUSE_BTN_LEFT:
621 return LeftUp();
622
623 case wxMOUSE_BTN_MIDDLE:
624 return MiddleUp();
625
626 case wxMOUSE_BTN_RIGHT:
627 return RightUp();
628 }
629 }
630
631 // return true if the given button is currently changing state
632 bool wxMouseEvent::Button(int but) const
633 {
634 switch (but)
635 {
636 default:
637 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
638 // fall through
639
640 case wxMOUSE_BTN_ANY:
641 return ButtonUp(wxMOUSE_BTN_ANY) ||
642 ButtonDown(wxMOUSE_BTN_ANY) ||
643 ButtonDClick(wxMOUSE_BTN_ANY);
644
645 case wxMOUSE_BTN_LEFT:
646 return LeftDown() || LeftUp() || LeftDClick();
647
648 case wxMOUSE_BTN_MIDDLE:
649 return MiddleDown() || MiddleUp() || MiddleDClick();
650
651 case wxMOUSE_BTN_RIGHT:
652 return RightDown() || RightUp() || RightDClick();
653 }
654 }
655
656 bool wxMouseEvent::ButtonIsDown(int but) const
657 {
658 switch (but)
659 {
660 default:
661 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
662 // fall through
663
664 case wxMOUSE_BTN_ANY:
665 return LeftIsDown() || MiddleIsDown() || RightIsDown();
666
667 case wxMOUSE_BTN_LEFT:
668 return LeftIsDown();
669
670 case wxMOUSE_BTN_MIDDLE:
671 return MiddleIsDown();
672
673 case wxMOUSE_BTN_RIGHT:
674 return RightIsDown();
675 }
676 }
677
678 int wxMouseEvent::GetButton() const
679 {
680 for ( int i = 1; i <= 3; i++ )
681 {
682 if ( Button(i) )
683 {
684 return i;
685 }
686 }
687
688 return wxMOUSE_BTN_NONE;
689 }
690
691 // Find the logical position of the event given the DC
692 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
693 {
694 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
695 return pt;
696 }
697
698
699 /*
700 * Keyboard event
701 *
702 */
703
704 wxKeyEvent::wxKeyEvent(wxEventType type)
705 {
706 m_eventType = type;
707 m_shiftDown = false;
708 m_controlDown = false;
709 m_metaDown = false;
710 m_altDown = false;
711 m_keyCode = 0;
712 m_scanCode = 0;
713 #if wxUSE_UNICODE
714 m_uniChar = 0;
715 #endif
716 }
717
718 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
719 : wxEvent(evt)
720 {
721 m_x = evt.m_x;
722 m_y = evt.m_y;
723
724 m_keyCode = evt.m_keyCode;
725
726 m_controlDown = evt.m_controlDown;
727 m_shiftDown = evt.m_shiftDown;
728 m_altDown = evt.m_altDown;
729 m_metaDown = evt.m_metaDown;
730 m_scanCode = evt.m_scanCode;
731 m_rawCode = evt.m_rawCode;
732 m_rawFlags = evt.m_rawFlags;
733
734 #if wxUSE_UNICODE
735 m_uniChar = evt.m_uniChar;
736 #endif
737 }
738
739 long wxKeyEvent::KeyCode() const
740 {
741 return m_keyCode;
742 }
743
744 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
745 {
746 SetEventType(wxEVT_CREATE);
747 SetEventObject(win);
748 }
749
750 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
751 {
752 SetEventType(wxEVT_DESTROY);
753 SetEventObject(win);
754 }
755
756 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
757 : wxCommandEvent(wxEVT_CHILD_FOCUS)
758 {
759 SetEventObject(win);
760 }
761
762 #endif // wxUSE_GUI
763
764
765 #if wxUSE_BASE
766
767 // ----------------------------------------------------------------------------
768 // wxEventHashTable
769 // ----------------------------------------------------------------------------
770
771 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
772
773 wxEventHashTable* wxEventHashTable::sm_first = NULL;
774
775 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
776 : m_table(table),
777 m_rebuildHash(true)
778 {
779 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
780
781 m_next = sm_first;
782 if (m_next)
783 m_next->m_previous = this;
784 sm_first = this;
785 }
786
787 wxEventHashTable::~wxEventHashTable()
788 {
789 if (m_next)
790 m_next->m_previous = m_previous;
791 if (m_previous)
792 m_previous->m_next = m_next;
793 if (sm_first == this)
794 sm_first = m_next;
795
796 Clear();
797 }
798
799 void wxEventHashTable::Clear()
800 {
801 size_t i;
802 for(i = 0; i < m_size; i++)
803 {
804 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
805 if (eTTnode)
806 {
807 delete eTTnode;
808 }
809 }
810
811 // Necessary in order to not invoke the
812 // overloaded delete operator when statics are cleaned up
813 if (m_eventTypeTable)
814 delete[] m_eventTypeTable;
815
816 m_eventTypeTable = NULL;
817 m_size = 0;
818 }
819
820 // Clear all tables
821 void wxEventHashTable::ClearAll()
822 {
823 wxEventHashTable* table = sm_first;
824 while (table)
825 {
826 table->Clear();
827 table = table->m_next;
828 }
829 }
830
831 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
832 {
833 if (m_rebuildHash)
834 {
835 InitHashTable();
836 m_rebuildHash = false;
837 }
838
839 if (!m_eventTypeTable)
840 return false;
841
842 // Find all entries for the given event type.
843 wxEventType eventType = event.GetEventType();
844 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
845 if (eTTnode && eTTnode->eventType == eventType)
846 {
847 // Now start the search for an event handler
848 // that can handle an event with the given ID.
849 const wxEventTableEntryPointerArray&
850 eventEntryTable = eTTnode->eventEntryTable;
851
852 const size_t count = eventEntryTable.GetCount();
853 for (size_t n = 0; n < count; n++)
854 {
855 if ( wxEvtHandler::
856 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
857 {
858 return true;
859 }
860 }
861 }
862
863 return false;
864 }
865
866 void wxEventHashTable::InitHashTable()
867 {
868 // Loop over the event tables and all its base tables.
869 const wxEventTable *table = &m_table;
870 while (table)
871 {
872 // Retrieve all valid event handler entries
873 const wxEventTableEntry *entry = table->entries;
874 while (entry->m_fn != 0)
875 {
876 // Add the event entry in the Hash.
877 AddEntry(*entry);
878
879 entry++;
880 }
881
882 table = table->baseTable;
883 }
884
885 // Lets free some memory.
886 size_t i;
887 for(i = 0; i < m_size; i++)
888 {
889 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
890 if (eTTnode)
891 {
892 eTTnode->eventEntryTable.Shrink();
893 }
894 }
895 }
896
897 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
898 {
899 // This might happen 'accidentally' as the app is exiting
900 if (!m_eventTypeTable)
901 return;
902
903 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
904 EventTypeTablePointer eTTnode = *peTTnode;
905
906 if (eTTnode)
907 {
908 if (eTTnode->eventType != entry.m_eventType)
909 {
910 // Resize the table!
911 GrowEventTypeTable();
912 // Try again to add it.
913 AddEntry(entry);
914 return;
915 }
916 }
917 else
918 {
919 eTTnode = new EventTypeTable;
920 eTTnode->eventType = entry.m_eventType;
921 *peTTnode = eTTnode;
922 }
923
924 // Fill all hash entries between entry.m_id and entry.m_lastId...
925 eTTnode->eventEntryTable.Add(&entry);
926 }
927
928 void wxEventHashTable::AllocEventTypeTable(size_t size)
929 {
930 m_eventTypeTable = new EventTypeTablePointer[size];
931 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
932 m_size = size;
933 }
934
935 void wxEventHashTable::GrowEventTypeTable()
936 {
937 size_t oldSize = m_size;
938 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
939
940 // TODO: Search the most optimal grow sequence
941 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
942
943 for ( size_t i = 0; i < oldSize; /* */ )
944 {
945 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
946 if (eTToldNode)
947 {
948 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
949 EventTypeTablePointer eTTnode = *peTTnode;
950
951 // Check for collision, we don't want any.
952 if (eTTnode)
953 {
954 GrowEventTypeTable();
955 continue; // Don't increment the counter,
956 // as we still need to add this element.
957 }
958 else
959 {
960 // Get the old value and put it in the new table.
961 *peTTnode = oldEventTypeTable[i];
962 }
963 }
964
965 i++;
966 }
967
968 delete[] oldEventTypeTable;
969 }
970
971
972 // ----------------------------------------------------------------------------
973 // wxEvtHandler
974 // ----------------------------------------------------------------------------
975
976 /*
977 * Event handler
978 */
979
980 wxEvtHandler::wxEvtHandler()
981 {
982 m_nextHandler = (wxEvtHandler *) NULL;
983 m_previousHandler = (wxEvtHandler *) NULL;
984 m_enabled = true;
985 m_dynamicEvents = (wxList *) NULL;
986 m_pendingEvents = (wxList *) NULL;
987 #if wxUSE_THREADS
988 # if !defined(__VISAGECPP__)
989 m_eventsLocker = new wxCriticalSection;
990 # endif
991 #endif
992 // no client data (yet)
993 m_clientData = NULL;
994 m_clientDataType = wxClientData_None;
995 }
996
997 wxEvtHandler::~wxEvtHandler()
998 {
999 // Takes itself out of the list of handlers
1000 if (m_previousHandler)
1001 m_previousHandler->m_nextHandler = m_nextHandler;
1002
1003 if (m_nextHandler)
1004 m_nextHandler->m_previousHandler = m_previousHandler;
1005
1006 if (m_dynamicEvents)
1007 {
1008 wxList::iterator it = m_dynamicEvents->begin(),
1009 en = m_dynamicEvents->end();
1010 for (;it != en; ++it)
1011 {
1012 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1013 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1014 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1015 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1016 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1017
1018 if (entry->m_callbackUserData)
1019 delete entry->m_callbackUserData;
1020 delete entry;
1021 }
1022 delete m_dynamicEvents;
1023 };
1024
1025 if (m_pendingEvents)
1026 m_pendingEvents->DeleteContents(true);
1027 delete m_pendingEvents;
1028
1029 #if wxUSE_THREADS
1030 # if !defined(__VISAGECPP__)
1031 delete m_eventsLocker;
1032 # endif
1033
1034 // Remove us from wxPendingEvents if necessary.
1035 if(wxPendingEventsLocker)
1036 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1037 if ( wxPendingEvents )
1038 {
1039 // Delete all occurences of this from the list of pending events
1040 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1041 }
1042 if(wxPendingEventsLocker)
1043 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1044 #endif
1045
1046 // we only delete object data, not untyped
1047 if ( m_clientDataType == wxClientData_Object )
1048 delete m_clientObject;
1049 }
1050
1051 #if wxUSE_THREADS
1052
1053 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1054 {
1055 // check that we are really in a child thread
1056 wxASSERT_MSG( !wxThread::IsMain(),
1057 wxT("use ProcessEvent() in main thread") );
1058
1059 AddPendingEvent(event);
1060
1061 return true;
1062 }
1063
1064 void wxEvtHandler::ClearEventLocker()
1065 {
1066 #if !defined(__VISAGECPP__)
1067 delete m_eventsLocker;
1068 m_eventsLocker = NULL;
1069 #endif
1070 }
1071
1072 #endif // wxUSE_THREADS
1073
1074 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1075 {
1076 // 1) Add event to list of pending events of this event handler
1077
1078 wxEvent *eventCopy = event.Clone();
1079
1080 // we must be able to copy the events here so the event class must
1081 // implement Clone() properly instead of just providing a NULL stab for it
1082 wxCHECK_RET( eventCopy,
1083 _T("events of this type aren't supposed to be posted") );
1084
1085 wxENTER_CRIT_SECT( Lock() );
1086
1087 if ( !m_pendingEvents )
1088 m_pendingEvents = new wxList;
1089
1090 m_pendingEvents->Append(eventCopy);
1091
1092 wxLEAVE_CRIT_SECT( Lock() );
1093
1094 // 2) Add this event handler to list of event handlers that
1095 // have pending events.
1096
1097 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1098
1099 if ( !wxPendingEvents )
1100 wxPendingEvents = new wxList;
1101 wxPendingEvents->Append(this);
1102
1103 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1104
1105 // 3) Inform the system that new pending events are somewhere,
1106 // and that these should be processed in idle time.
1107 wxWakeUpIdle();
1108 }
1109
1110 void wxEvtHandler::ProcessPendingEvents()
1111 {
1112 // this method is only called by wxApp if this handler does have pending
1113 // events
1114 wxCHECK_RET( m_pendingEvents,
1115 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1116
1117 wxENTER_CRIT_SECT( Lock() );
1118
1119 // we leave the loop once we have processed all events that were present at
1120 // the start of ProcessPendingEvents because otherwise we could get into
1121 // infinite loop if the pending event handler execution resulted in another
1122 // event being posted
1123 size_t n = m_pendingEvents->size();
1124 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1125 node;
1126 node = m_pendingEvents->GetFirst() )
1127 {
1128 wxEvent *event = (wxEvent *)node->GetData();
1129
1130 // It's importan we remove event from list before processing it.
1131 // Else a nested event loop, for example from a modal dialog, might
1132 // process the same event again.
1133 m_pendingEvents->Erase(node);
1134
1135 wxLEAVE_CRIT_SECT( Lock() );
1136
1137 ProcessEvent(*event);
1138 delete event;
1139
1140 wxENTER_CRIT_SECT( Lock() );
1141
1142 if ( --n == 0 )
1143 break;
1144 }
1145
1146 wxLEAVE_CRIT_SECT( Lock() );
1147 }
1148
1149 /*
1150 * Event table stuff
1151 */
1152 /* static */ bool
1153 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1154 wxEvtHandler *handler,
1155 wxEvent& event)
1156 {
1157 int tableId1 = entry.m_id,
1158 tableId2 = entry.m_lastId;
1159
1160 // match only if the event type is the same and the id is either -1 in
1161 // the event table (meaning "any") or the event id matches the id
1162 // specified in the event table either exactly or by falling into
1163 // range between first and last
1164 if ((tableId1 == wxID_ANY) ||
1165 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1166 (tableId2 != wxID_ANY &&
1167 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1168 {
1169 event.Skip(false);
1170 event.m_callbackUserData = entry.m_callbackUserData;
1171
1172 #if wxUSE_EXCEPTIONS
1173 if ( wxTheApp )
1174 {
1175 // call the handler via wxApp method which allows the user to catch
1176 // any exceptions which may be thrown by any handler in the program
1177 // in one place
1178 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1179 }
1180 else
1181 #endif // wxUSE_EXCEPTIONS
1182 {
1183 // no need for an extra virtual function call
1184 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1185 }
1186
1187 if (!event.GetSkipped())
1188 return true;
1189 }
1190
1191 return false;
1192 }
1193
1194 bool wxEvtHandler::TryParent(wxEvent& event)
1195 {
1196 if ( wxTheApp && (this != wxTheApp) )
1197 {
1198 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1199 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1200 // processed appropriately via SearchEventTable.
1201 if ( event.GetEventType() != wxEVT_IDLE )
1202 {
1203 if ( wxTheApp->ProcessEvent(event) )
1204 return true;
1205 }
1206 }
1207
1208 return false;
1209 }
1210
1211 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1212 {
1213 // allow the application to hook into event processing
1214 if ( wxTheApp )
1215 {
1216 int rc = wxTheApp->FilterEvent(event);
1217 if ( rc != -1 )
1218 {
1219 wxASSERT_MSG( rc == 1 || rc == 0,
1220 _T("unexpected wxApp::FilterEvent return value") );
1221
1222 return rc != 0;
1223 }
1224 //else: proceed normally
1225 }
1226
1227 // An event handler can be enabled or disabled
1228 if ( GetEvtHandlerEnabled() )
1229 {
1230 // if we have a validator, it has higher priority than our own event
1231 // table
1232 if ( TryValidator(event) )
1233 return true;
1234
1235 // Handle per-instance dynamic event tables first
1236 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1237 return true;
1238
1239 // Then static per-class event tables
1240 if ( GetEventHashTable().HandleEvent(event, this) )
1241 return true;
1242 }
1243
1244 // Try going down the event handler chain
1245 if ( GetNextHandler() )
1246 {
1247 if ( GetNextHandler()->ProcessEvent(event) )
1248 return true;
1249 }
1250
1251 // Finally propagate the event upwards the window chain and/or to the
1252 // application object as necessary
1253 return TryParent(event);
1254 }
1255
1256
1257 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1258 {
1259 const wxEventType eventType = event.GetEventType();
1260 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1261 {
1262 const wxEventTableEntry& entry = table.entries[i];
1263 if ( eventType == entry.m_eventType )
1264 {
1265 if ( ProcessEventIfMatches(entry, this, event) )
1266 return true;
1267 }
1268 }
1269
1270 return false;
1271 }
1272
1273 void wxEvtHandler::Connect( int id, int lastId,
1274 int eventType,
1275 wxObjectEventFunction func,
1276 wxObject *userData,
1277 wxEvtHandler* eventSink )
1278 {
1279 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1280 wxEventTableEntry *entry = new wxEventTableEntry;
1281 entry->m_eventType = eventType;
1282 entry->m_id = id;
1283 entry->m_lastId = lastId;
1284 entry->m_fn = func;
1285 entry->m_callbackUserData = userData;
1286 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1287 wxDynamicEventTableEntry *entry =
1288 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1289 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1290
1291 if (!m_dynamicEvents)
1292 m_dynamicEvents = new wxList;
1293
1294 // Insert at the front of the list so most recent additions are found first
1295 m_dynamicEvents->Insert( (wxObject*) entry );
1296 }
1297
1298 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1299 wxObjectEventFunction func,
1300 wxObject *userData,
1301 wxEvtHandler* eventSink )
1302 {
1303 if (!m_dynamicEvents)
1304 return false;
1305
1306 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1307 while (node)
1308 {
1309 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1310 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1311 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1312 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1313 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1314
1315 if ((entry->m_id == id) &&
1316 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1317 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1318 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1319 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1320 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1321 {
1322 if (entry->m_callbackUserData)
1323 delete entry->m_callbackUserData;
1324 m_dynamicEvents->Erase( node );
1325 delete entry;
1326 return true;
1327 }
1328 node = node->GetNext();
1329 }
1330 return false;
1331 }
1332
1333 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1334 {
1335 wxCHECK_MSG( m_dynamicEvents, false,
1336 wxT("caller should check that we have dynamic events") );
1337
1338 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1339 while (node)
1340 {
1341 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1342 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1343 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1344 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1345 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1346
1347 // get next node before (maybe) calling the event handler as it could
1348 // call Disconnect() invalidating the current node
1349 node = node->GetNext();
1350
1351 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1352 {
1353 wxEvtHandler *handler =
1354 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1355 entry->m_eventSink ? entry->m_eventSink
1356 :
1357 #endif
1358 this;
1359
1360 if ( ProcessEventIfMatches(*entry, handler, event) )
1361 {
1362 return true;
1363 }
1364 }
1365 }
1366
1367 return false;
1368 }
1369
1370 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1371 {
1372 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1373 wxT("can't have both object and void client data") );
1374
1375 if ( m_clientObject )
1376 delete m_clientObject;
1377
1378 m_clientObject = data;
1379 m_clientDataType = wxClientData_Object;
1380 }
1381
1382 wxClientData *wxEvtHandler::DoGetClientObject() const
1383 {
1384 // it's not an error to call GetClientObject() on a window which doesn't
1385 // have client data at all - NULL will be returned
1386 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1387 wxT("this window doesn't have object client data") );
1388
1389 return m_clientObject;
1390 }
1391
1392 void wxEvtHandler::DoSetClientData( void *data )
1393 {
1394 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1395 wxT("can't have both object and void client data") );
1396
1397 m_clientData = data;
1398 m_clientDataType = wxClientData_Void;
1399 }
1400
1401 void *wxEvtHandler::DoGetClientData() const
1402 {
1403 // it's not an error to call GetClientData() on a window which doesn't have
1404 // client data at all - NULL will be returned
1405 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1406 wxT("this window doesn't have void client data") );
1407
1408 return m_clientData;
1409 }
1410
1411 #endif // wxUSE_BASE
1412
1413 #if wxUSE_GUI
1414
1415 // Find a window with the focus, that is also a descendant of the given window.
1416 // This is used to determine the window to initially send commands to.
1417 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1418 {
1419 // Process events starting with the window with the focus, if any.
1420 wxWindow* focusWin = wxWindow::FindFocus();
1421 wxWindow* win = focusWin;
1422
1423 // Check if this is a descendant of this frame.
1424 // If not, win will be set to NULL.
1425 while (win)
1426 {
1427 if (win == ancestor)
1428 break;
1429 else
1430 win = win->GetParent();
1431 }
1432 if (win == (wxWindow*) NULL)
1433 focusWin = (wxWindow*) NULL;
1434
1435 return focusWin;
1436 }
1437
1438 #endif // wxUSE_GUI
wxWidgets (Impactor)