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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 lines below, not needed any more"
253 #endif
254 #undef wxEVT_SCROLL_ENDSCROLL
255 extern WXDLLIMPEXP_CORE const wxEventType wxEVT_SCROLL_ENDSCROLL;
256 const wxEventType wxEVT_SCROLL_ENDSCROLL = wxEVT_SCROLL_CHANGED;
257
258 // Scroll events from wxWindow
259 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
260 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
261 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
262 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
263 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
264 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
265 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
266 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
267
268 // System events
269 DEFINE_EVENT_TYPE(wxEVT_SIZE)
270 DEFINE_EVENT_TYPE(wxEVT_SIZING)
271 DEFINE_EVENT_TYPE(wxEVT_MOVE)
272 DEFINE_EVENT_TYPE(wxEVT_MOVING)
273 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
274 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
275 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
276 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
277 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
278 DEFINE_EVENT_TYPE(wxEVT_POWER)
279 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
280 DEFINE_EVENT_TYPE(wxEVT_CREATE)
281 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
282 DEFINE_EVENT_TYPE(wxEVT_SHOW)
283 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
284 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
285 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
286 DEFINE_EVENT_TYPE(wxEVT_PAINT)
287 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
288 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
289 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
290 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
291 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
292 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
293 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
294 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
295 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
296 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
297 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
298 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
299 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
300 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
301 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
302 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
303 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
304 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
305 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
306 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
307 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
308 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
309
310 // Generic command events
311 // Note: a click is a higher-level event than button down/up
312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
313 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
314 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
315 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
316 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
317 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
318 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
319
320 // Help events
321 DEFINE_EVENT_TYPE(wxEVT_HELP)
322 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
323
324 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
325
326 #endif // wxUSE_GUI
327
328 #if wxUSE_BASE
329
330 // ============================================================================
331 // implementation
332 // ============================================================================
333
334 // ----------------------------------------------------------------------------
335 // event initialization
336 // ----------------------------------------------------------------------------
337
338 int wxNewEventType()
339 {
340 // MT-FIXME
341 static int s_lastUsedEventType = wxEVT_FIRST;
342
343 return s_lastUsedEventType++;
344 }
345
346 // ----------------------------------------------------------------------------
347 // wxEvent
348 // ----------------------------------------------------------------------------
349
350 /*
351 * General wxWidgets events, covering
352 * all interesting things that might happen (button clicking, resizing,
353 * setting text in widgets, etc.).
354 *
355 * For each completely new event type, derive a new event class.
356 *
357 */
358
359 wxEvent::wxEvent(int theId, wxEventType commandType )
360 {
361 m_eventType = commandType;
362 m_eventObject = (wxObject *) NULL;
363 m_timeStamp = 0;
364 m_id = theId;
365 m_skipped = false;
366 m_callbackUserData = (wxObject *) NULL;
367 m_isCommandEvent = false;
368 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
369 }
370
371 wxEvent::wxEvent(const wxEvent &src)
372 : wxObject()
373 , m_eventObject(src.m_eventObject)
374 , m_eventType(src.m_eventType)
375 , m_timeStamp(src.m_timeStamp)
376 , m_id(src.m_id)
377 , m_callbackUserData(src.m_callbackUserData)
378 , m_propagationLevel(src.m_propagationLevel)
379 , m_skipped(src.m_skipped)
380 , m_isCommandEvent(src.m_isCommandEvent)
381 {
382 }
383
384 #endif // wxUSE_BASE
385
386 #if wxUSE_GUI
387
388 /*
389 * Command events
390 *
391 */
392
393 #ifdef __VISUALC__
394 // 'this' : used in base member initializer list (for m_commandString)
395 #pragma warning(disable:4355)
396 #endif
397
398 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
399 : wxEvent(theId, commandType)
400 #if WXWIN_COMPATIBILITY_2_4
401 , m_commandString(this)
402 #endif
403 {
404 m_clientData = (char *) NULL;
405 m_clientObject = (wxClientData *) NULL;
406 m_extraLong = 0;
407 m_commandInt = 0;
408 m_isCommandEvent = true;
409
410 // the command events are propagated upwards by default
411 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
412 }
413
414 #ifdef __VISUALC__
415 #pragma warning(default:4355)
416 #endif
417
418 wxString wxCommandEvent::GetString() const
419 {
420 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
421 return m_cmdString;
422 else
423 {
424 #if wxUSE_TEXTCTRL
425 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
426 if(txt)
427 return txt->GetValue();
428 else
429 #endif // wxUSE_TEXTCTRL
430 return m_cmdString;
431 }
432 }
433
434 /*
435 * UI update events
436 */
437
438 #if wxUSE_LONGLONG
439 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
440 #endif
441
442 long wxUpdateUIEvent::sm_updateInterval = 0;
443
444 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
445
446 // Can we update?
447 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
448 {
449 // Don't update if we've switched global updating off
450 // and this window doesn't support updates.
451 if (win &&
452 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
453 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
454 return false;
455
456 if (sm_updateInterval == -1)
457 return false;
458
459 if (sm_updateInterval == 0)
460 return true;
461
462 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
463 wxLongLong now = wxGetLocalTimeMillis();
464 if (now > (sm_lastUpdate + sm_updateInterval))
465 {
466 return true;
467 }
468
469 return false;
470 #else
471 // If we don't have wxStopWatch or wxLongLong, we
472 // should err on the safe side and update now anyway.
473 return true;
474 #endif
475 }
476
477 // Reset the update time to provide a delay until the next
478 // time we should update
479 void wxUpdateUIEvent::ResetUpdateTime()
480 {
481 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
482 if (sm_updateInterval > 0)
483 {
484 wxLongLong now = wxGetLocalTimeMillis();
485 if (now > (sm_lastUpdate + sm_updateInterval))
486 {
487 sm_lastUpdate = now;
488 }
489 }
490 #endif
491 }
492
493 /*
494 * Idle events
495 */
496
497 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
498
499 // Can we send an idle event?
500 bool wxIdleEvent::CanSend(wxWindow* win)
501 {
502 // Don't update if we've switched global updating off
503 // and this window doesn't support updates.
504 if (win &&
505 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
506 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
507 return false;
508
509 return true;
510 }
511
512 /*
513 * Scroll events
514 */
515
516 wxScrollEvent::wxScrollEvent(wxEventType commandType,
517 int id,
518 int pos,
519 int orient)
520 : wxCommandEvent(commandType, id)
521 {
522 m_extraLong = orient;
523 m_commandInt = pos;
524 }
525
526 /*
527 * ScrollWin events
528 */
529
530 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
531 int pos,
532 int orient)
533 {
534 m_eventType = commandType;
535 m_extraLong = orient;
536 m_commandInt = pos;
537 }
538
539 /*
540 * Mouse events
541 *
542 */
543
544 wxMouseEvent::wxMouseEvent(wxEventType commandType)
545 {
546 m_eventType = commandType;
547 m_metaDown = false;
548 m_altDown = false;
549 m_controlDown = false;
550 m_shiftDown = false;
551 m_leftDown = false;
552 m_rightDown = false;
553 m_middleDown = false;
554 m_x = 0;
555 m_y = 0;
556 m_wheelRotation = 0;
557 m_wheelDelta = 0;
558 m_linesPerAction = 0;
559 }
560
561 void wxMouseEvent::Assign(const wxMouseEvent& event)
562 {
563 m_eventType = event.m_eventType;
564
565 m_x = event.m_x;
566 m_y = event.m_y;
567
568 m_leftDown = event.m_leftDown;
569 m_middleDown = event.m_middleDown;
570 m_rightDown = event.m_rightDown;
571
572 m_controlDown = event.m_controlDown;
573 m_shiftDown = event.m_shiftDown;
574 m_altDown = event.m_altDown;
575 m_metaDown = event.m_metaDown;
576
577 m_wheelRotation = event.m_wheelRotation;
578 m_wheelDelta = event.m_wheelDelta;
579 m_linesPerAction = event.m_linesPerAction;
580 }
581
582 // return true if was a button dclick event
583 bool wxMouseEvent::ButtonDClick(int but) const
584 {
585 switch (but)
586 {
587 default:
588 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
589 // fall through
590
591 case wxMOUSE_BTN_ANY:
592 return (LeftDClick() || MiddleDClick() || RightDClick());
593
594 case wxMOUSE_BTN_LEFT:
595 return LeftDClick();
596
597 case wxMOUSE_BTN_MIDDLE:
598 return MiddleDClick();
599
600 case wxMOUSE_BTN_RIGHT:
601 return RightDClick();
602 }
603 }
604
605 // return true if was a button down event
606 bool wxMouseEvent::ButtonDown(int but) const
607 {
608 switch (but)
609 {
610 default:
611 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
612 // fall through
613
614 case wxMOUSE_BTN_ANY:
615 return (LeftDown() || MiddleDown() || RightDown());
616
617 case wxMOUSE_BTN_LEFT:
618 return LeftDown();
619
620 case wxMOUSE_BTN_MIDDLE:
621 return MiddleDown();
622
623 case wxMOUSE_BTN_RIGHT:
624 return RightDown();
625 }
626 }
627
628 // return true if was a button up event
629 bool wxMouseEvent::ButtonUp(int but) const
630 {
631 switch (but)
632 {
633 default:
634 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
635 // fall through
636
637 case wxMOUSE_BTN_ANY:
638 return (LeftUp() || MiddleUp() || RightUp());
639
640 case wxMOUSE_BTN_LEFT:
641 return LeftUp();
642
643 case wxMOUSE_BTN_MIDDLE:
644 return MiddleUp();
645
646 case wxMOUSE_BTN_RIGHT:
647 return RightUp();
648 }
649 }
650
651 // return true if the given button is currently changing state
652 bool wxMouseEvent::Button(int but) const
653 {
654 switch (but)
655 {
656 default:
657 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
658 // fall through
659
660 case wxMOUSE_BTN_ANY:
661 return ButtonUp(wxMOUSE_BTN_ANY) ||
662 ButtonDown(wxMOUSE_BTN_ANY) ||
663 ButtonDClick(wxMOUSE_BTN_ANY);
664
665 case wxMOUSE_BTN_LEFT:
666 return LeftDown() || LeftUp() || LeftDClick();
667
668 case wxMOUSE_BTN_MIDDLE:
669 return MiddleDown() || MiddleUp() || MiddleDClick();
670
671 case wxMOUSE_BTN_RIGHT:
672 return RightDown() || RightUp() || RightDClick();
673 }
674 }
675
676 bool wxMouseEvent::ButtonIsDown(int but) const
677 {
678 switch (but)
679 {
680 default:
681 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
682 // fall through
683
684 case wxMOUSE_BTN_ANY:
685 return LeftIsDown() || MiddleIsDown() || RightIsDown();
686
687 case wxMOUSE_BTN_LEFT:
688 return LeftIsDown();
689
690 case wxMOUSE_BTN_MIDDLE:
691 return MiddleIsDown();
692
693 case wxMOUSE_BTN_RIGHT:
694 return RightIsDown();
695 }
696 }
697
698 int wxMouseEvent::GetButton() const
699 {
700 for ( int i = 1; i <= 3; i++ )
701 {
702 if ( Button(i) )
703 {
704 return i;
705 }
706 }
707
708 return wxMOUSE_BTN_NONE;
709 }
710
711 // Find the logical position of the event given the DC
712 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
713 {
714 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
715 return pt;
716 }
717
718
719 /*
720 * Keyboard event
721 *
722 */
723
724 wxKeyEvent::wxKeyEvent(wxEventType type)
725 {
726 m_eventType = type;
727 m_shiftDown = false;
728 m_controlDown = false;
729 m_metaDown = false;
730 m_altDown = false;
731 m_keyCode = 0;
732 m_scanCode = 0;
733 #if wxUSE_UNICODE
734 m_uniChar = 0;
735 #endif
736 }
737
738 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
739 : wxEvent(evt)
740 {
741 m_x = evt.m_x;
742 m_y = evt.m_y;
743
744 m_keyCode = evt.m_keyCode;
745
746 m_controlDown = evt.m_controlDown;
747 m_shiftDown = evt.m_shiftDown;
748 m_altDown = evt.m_altDown;
749 m_metaDown = evt.m_metaDown;
750 m_scanCode = evt.m_scanCode;
751 m_rawCode = evt.m_rawCode;
752 m_rawFlags = evt.m_rawFlags;
753
754 #if wxUSE_UNICODE
755 m_uniChar = evt.m_uniChar;
756 #endif
757 }
758
759 long wxKeyEvent::KeyCode() const
760 {
761 return m_keyCode;
762 }
763
764 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
765 {
766 SetEventType(wxEVT_CREATE);
767 SetEventObject(win);
768 }
769
770 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
771 {
772 SetEventType(wxEVT_DESTROY);
773 SetEventObject(win);
774 }
775
776 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
777 : wxCommandEvent(wxEVT_CHILD_FOCUS)
778 {
779 SetEventObject(win);
780 }
781
782 #endif // wxUSE_GUI
783
784
785 #if wxUSE_BASE
786
787 // ----------------------------------------------------------------------------
788 // wxEventHashTable
789 // ----------------------------------------------------------------------------
790
791 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
792
793 wxEventHashTable* wxEventHashTable::sm_first = NULL;
794
795 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
796 : m_table(table),
797 m_rebuildHash(true)
798 {
799 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
800
801 m_next = sm_first;
802 if (m_next)
803 m_next->m_previous = this;
804 sm_first = this;
805 }
806
807 wxEventHashTable::~wxEventHashTable()
808 {
809 if (m_next)
810 m_next->m_previous = m_previous;
811 if (m_previous)
812 m_previous->m_next = m_next;
813 if (sm_first == this)
814 sm_first = m_next;
815
816 Clear();
817 }
818
819 void wxEventHashTable::Clear()
820 {
821 size_t i;
822 for(i = 0; i < m_size; i++)
823 {
824 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
825 if (eTTnode)
826 {
827 delete eTTnode;
828 }
829 }
830
831 // Necessary in order to not invoke the
832 // overloaded delete operator when statics are cleaned up
833 if (m_eventTypeTable)
834 delete[] m_eventTypeTable;
835
836 m_eventTypeTable = NULL;
837 m_size = 0;
838 }
839
840 // Clear all tables
841 void wxEventHashTable::ClearAll()
842 {
843 wxEventHashTable* table = sm_first;
844 while (table)
845 {
846 table->Clear();
847 table = table->m_next;
848 }
849 }
850
851 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
852 {
853 if (m_rebuildHash)
854 {
855 InitHashTable();
856 m_rebuildHash = false;
857 }
858
859 if (!m_eventTypeTable)
860 return false;
861
862 // Find all entries for the given event type.
863 wxEventType eventType = event.GetEventType();
864 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
865 if (eTTnode && eTTnode->eventType == eventType)
866 {
867 // Now start the search for an event handler
868 // that can handle an event with the given ID.
869 const wxEventTableEntryPointerArray&
870 eventEntryTable = eTTnode->eventEntryTable;
871
872 const size_t count = eventEntryTable.GetCount();
873 for (size_t n = 0; n < count; n++)
874 {
875 if ( wxEvtHandler::
876 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
877 {
878 return true;
879 }
880 }
881 }
882
883 return false;
884 }
885
886 void wxEventHashTable::InitHashTable()
887 {
888 // Loop over the event tables and all its base tables.
889 const wxEventTable *table = &m_table;
890 while (table)
891 {
892 // Retrieve all valid event handler entries
893 const wxEventTableEntry *entry = table->entries;
894 while (entry->m_fn != 0)
895 {
896 // Add the event entry in the Hash.
897 AddEntry(*entry);
898
899 entry++;
900 }
901
902 table = table->baseTable;
903 }
904
905 // Lets free some memory.
906 size_t i;
907 for(i = 0; i < m_size; i++)
908 {
909 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
910 if (eTTnode)
911 {
912 eTTnode->eventEntryTable.Shrink();
913 }
914 }
915 }
916
917 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
918 {
919 // This might happen 'accidentally' as the app is exiting
920 if (!m_eventTypeTable)
921 return;
922
923 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
924 EventTypeTablePointer eTTnode = *peTTnode;
925
926 if (eTTnode)
927 {
928 if (eTTnode->eventType != entry.m_eventType)
929 {
930 // Resize the table!
931 GrowEventTypeTable();
932 // Try again to add it.
933 AddEntry(entry);
934 return;
935 }
936 }
937 else
938 {
939 eTTnode = new EventTypeTable;
940 eTTnode->eventType = entry.m_eventType;
941 *peTTnode = eTTnode;
942 }
943
944 // Fill all hash entries between entry.m_id and entry.m_lastId...
945 eTTnode->eventEntryTable.Add(&entry);
946 }
947
948 void wxEventHashTable::AllocEventTypeTable(size_t size)
949 {
950 m_eventTypeTable = new EventTypeTablePointer[size];
951 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
952 m_size = size;
953 }
954
955 void wxEventHashTable::GrowEventTypeTable()
956 {
957 size_t oldSize = m_size;
958 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
959
960 // TODO: Search the most optimal grow sequence
961 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
962
963 for ( size_t i = 0; i < oldSize; /* */ )
964 {
965 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
966 if (eTToldNode)
967 {
968 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
969 EventTypeTablePointer eTTnode = *peTTnode;
970
971 // Check for collision, we don't want any.
972 if (eTTnode)
973 {
974 GrowEventTypeTable();
975 continue; // Don't increment the counter,
976 // as we still need to add this element.
977 }
978 else
979 {
980 // Get the old value and put it in the new table.
981 *peTTnode = oldEventTypeTable[i];
982 }
983 }
984
985 i++;
986 }
987
988 delete[] oldEventTypeTable;
989 }
990
991
992 // ----------------------------------------------------------------------------
993 // wxEvtHandler
994 // ----------------------------------------------------------------------------
995
996 /*
997 * Event handler
998 */
999
1000 wxEvtHandler::wxEvtHandler()
1001 {
1002 m_nextHandler = (wxEvtHandler *) NULL;
1003 m_previousHandler = (wxEvtHandler *) NULL;
1004 m_enabled = true;
1005 m_dynamicEvents = (wxList *) NULL;
1006 m_pendingEvents = (wxList *) NULL;
1007 #if wxUSE_THREADS
1008 # if !defined(__VISAGECPP__)
1009 m_eventsLocker = new wxCriticalSection;
1010 # endif
1011 #endif
1012 // no client data (yet)
1013 m_clientData = NULL;
1014 m_clientDataType = wxClientData_None;
1015 }
1016
1017 wxEvtHandler::~wxEvtHandler()
1018 {
1019 // Takes itself out of the list of handlers
1020 if (m_previousHandler)
1021 m_previousHandler->m_nextHandler = m_nextHandler;
1022
1023 if (m_nextHandler)
1024 m_nextHandler->m_previousHandler = m_previousHandler;
1025
1026 if (m_dynamicEvents)
1027 {
1028 wxList::iterator it = m_dynamicEvents->begin(),
1029 en = m_dynamicEvents->end();
1030 for (;it != en; ++it)
1031 {
1032 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1033 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1034 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1035 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1036 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1037
1038 if (entry->m_callbackUserData)
1039 delete entry->m_callbackUserData;
1040 delete entry;
1041 }
1042 delete m_dynamicEvents;
1043 };
1044
1045 delete m_pendingEvents;
1046
1047 #if wxUSE_THREADS
1048 # if !defined(__VISAGECPP__)
1049 delete m_eventsLocker;
1050 # endif
1051
1052 // Remove us from wxPendingEvents if necessary.
1053 if(wxPendingEventsLocker)
1054 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1055 if ( wxPendingEvents )
1056 {
1057 // Delete all occurences of this from the list of pending events
1058 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1059 }
1060 if(wxPendingEventsLocker)
1061 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1062 #endif
1063
1064 // we only delete object data, not untyped
1065 if ( m_clientDataType == wxClientData_Object )
1066 delete m_clientObject;
1067 }
1068
1069 #if wxUSE_THREADS
1070
1071 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1072 {
1073 // check that we are really in a child thread
1074 wxASSERT_MSG( !wxThread::IsMain(),
1075 wxT("use ProcessEvent() in main thread") );
1076
1077 AddPendingEvent(event);
1078
1079 return true;
1080 }
1081
1082 void wxEvtHandler::ClearEventLocker()
1083 {
1084 #if !defined(__VISAGECPP__)
1085 delete m_eventsLocker;
1086 m_eventsLocker = NULL;
1087 #endif
1088 };
1089
1090 #endif // wxUSE_THREADS
1091
1092 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1093 {
1094 // 1) Add event to list of pending events of this event handler
1095
1096 wxEvent *eventCopy = event.Clone();
1097
1098 // we must be able to copy the events here so the event class must
1099 // implement Clone() properly instead of just providing a NULL stab for it
1100 wxCHECK_RET( eventCopy,
1101 _T("events of this type aren't supposed to be posted") );
1102
1103 wxENTER_CRIT_SECT( Lock() );
1104
1105 if ( !m_pendingEvents )
1106 m_pendingEvents = new wxList;
1107
1108 m_pendingEvents->Append(eventCopy);
1109
1110 wxLEAVE_CRIT_SECT( Lock() );
1111
1112 // 2) Add this event handler to list of event handlers that
1113 // have pending events.
1114
1115 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1116
1117 if ( !wxPendingEvents )
1118 wxPendingEvents = new wxList;
1119 wxPendingEvents->Append(this);
1120
1121 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1122
1123 // 3) Inform the system that new pending events are somwehere,
1124 // and that these should be processed in idle time.
1125 wxWakeUpIdle();
1126 }
1127
1128 void wxEvtHandler::ProcessPendingEvents()
1129 {
1130 // this method is only called by wxApp if this handler does have pending
1131 // events
1132 wxCHECK_RET( m_pendingEvents,
1133 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1134
1135 wxENTER_CRIT_SECT( Lock() );
1136
1137 // we leave the loop once we have processed all events that were present at
1138 // the start of ProcessPendingEvents because otherwise we could get into
1139 // infinite loop if the pending event handler execution resulted in another
1140 // event being posted
1141 size_t n = m_pendingEvents->size();
1142 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1143 node;
1144 node = m_pendingEvents->GetFirst() )
1145 {
1146 wxEvent *event = (wxEvent *)node->GetData();
1147
1148 m_pendingEvents->Erase(node);
1149
1150 wxLEAVE_CRIT_SECT( Lock() );
1151
1152 ProcessEvent(*event);
1153 delete event;
1154
1155 wxENTER_CRIT_SECT( Lock() );
1156
1157 if ( !--n )
1158 break;
1159 }
1160
1161 wxLEAVE_CRIT_SECT( Lock() );
1162 }
1163
1164 /*
1165 * Event table stuff
1166 */
1167 /* static */ bool
1168 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1169 wxEvtHandler *handler,
1170 wxEvent& event)
1171 {
1172 int tableId1 = entry.m_id,
1173 tableId2 = entry.m_lastId;
1174
1175 // match only if the event type is the same and the id is either -1 in
1176 // the event table (meaning "any") or the event id matches the id
1177 // specified in the event table either exactly or by falling into
1178 // range between first and last
1179 if ((tableId1 == wxID_ANY) ||
1180 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1181 (tableId2 != wxID_ANY &&
1182 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1183 {
1184 event.Skip(false);
1185 event.m_callbackUserData = entry.m_callbackUserData;
1186
1187 #if wxUSE_EXCEPTIONS
1188 if ( wxTheApp )
1189 {
1190 // call the handler via wxApp method which allows the user to catch
1191 // any exceptions which may be thrown by any handler in the program
1192 // in one place
1193 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1194 }
1195 else
1196 #endif // wxUSE_EXCEPTIONS
1197 {
1198 // no need for an extra virtual function call
1199 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1200 }
1201
1202 if (!event.GetSkipped())
1203 return true;
1204 }
1205
1206 return false;
1207 }
1208
1209 bool wxEvtHandler::TryParent(wxEvent& event)
1210 {
1211 if ( wxTheApp && (this != wxTheApp) )
1212 {
1213 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1214 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1215 // processed appropriately via SearchEventTable.
1216 if ( event.GetEventType() != wxEVT_IDLE )
1217 {
1218 if ( wxTheApp->ProcessEvent(event) )
1219 return true;
1220 }
1221 }
1222
1223 return false;
1224 }
1225
1226 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1227 {
1228 // allow the application to hook into event processing
1229 if ( wxTheApp )
1230 {
1231 int rc = wxTheApp->FilterEvent(event);
1232 if ( rc != -1 )
1233 {
1234 wxASSERT_MSG( rc == 1 || rc == 0,
1235 _T("unexpected wxApp::FilterEvent return value") );
1236
1237 return rc != 0;
1238 }
1239 //else: proceed normally
1240 }
1241
1242 // An event handler can be enabled or disabled
1243 if ( GetEvtHandlerEnabled() )
1244 {
1245 // if we have a validator, it has higher priority than our own event
1246 // table
1247 if ( TryValidator(event) )
1248 return true;
1249
1250 // Handle per-instance dynamic event tables first
1251 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1252 return true;
1253
1254 // Then static per-class event tables
1255 if ( GetEventHashTable().HandleEvent(event, this) )
1256 return true;
1257 }
1258
1259 // Try going down the event handler chain
1260 if ( GetNextHandler() )
1261 {
1262 if ( GetNextHandler()->ProcessEvent(event) )
1263 return true;
1264 }
1265
1266 // Finally propagate the event upwards the window chain and/or to the
1267 // application object as necessary
1268 return TryParent(event);
1269 }
1270
1271
1272 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1273 {
1274 const wxEventType eventType = event.GetEventType();
1275 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1276 {
1277 const wxEventTableEntry& entry = table.entries[i];
1278 if ( eventType == entry.m_eventType )
1279 {
1280 if ( ProcessEventIfMatches(entry, this, event) )
1281 return true;
1282 }
1283 }
1284
1285 return false;
1286 }
1287
1288 void wxEvtHandler::Connect( int id, int lastId,
1289 int eventType,
1290 wxObjectEventFunction func,
1291 wxObject *userData,
1292 wxEvtHandler* eventSink )
1293 {
1294 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1295 wxEventTableEntry *entry = new wxEventTableEntry;
1296 entry->m_eventType = eventType;
1297 entry->m_id = id;
1298 entry->m_lastId = lastId;
1299 entry->m_fn = func;
1300 entry->m_callbackUserData = userData;
1301 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1302 wxDynamicEventTableEntry *entry =
1303 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1304 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1305
1306 if (!m_dynamicEvents)
1307 m_dynamicEvents = new wxList;
1308
1309 // Insert at the front of the list so most recent additions are found first
1310 m_dynamicEvents->Insert( (wxObject*) entry );
1311 }
1312
1313 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1314 wxObjectEventFunction func,
1315 wxObject *userData,
1316 wxEvtHandler* eventSink )
1317 {
1318 if (!m_dynamicEvents)
1319 return false;
1320
1321 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1322 while (node)
1323 {
1324 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1325 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1326 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1327 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1328 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1329
1330 if ((entry->m_id == id) &&
1331 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1332 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1333 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1334 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1335 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1336 {
1337 if (entry->m_callbackUserData)
1338 delete entry->m_callbackUserData;
1339 m_dynamicEvents->Erase( node );
1340 delete entry;
1341 return true;
1342 }
1343 node = node->GetNext();
1344 }
1345 return false;
1346 }
1347
1348 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1349 {
1350 wxCHECK_MSG( m_dynamicEvents, false,
1351 wxT("caller should check that we have dynamic events") );
1352
1353 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1354 while (node)
1355 {
1356 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1357 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1358 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1359 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1360 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1361
1362 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1363 {
1364 wxEvtHandler *handler =
1365 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1366 entry->m_eventSink ? entry->m_eventSink
1367 :
1368 #endif
1369 this;
1370
1371 if ( ProcessEventIfMatches(*entry, handler, event) )
1372 {
1373 return true;
1374 }
1375 }
1376
1377 node = node->GetNext();
1378 }
1379
1380 return false;
1381 };
1382
1383 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1384 {
1385 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1386 wxT("can't have both object and void client data") );
1387
1388 if ( m_clientObject )
1389 delete m_clientObject;
1390
1391 m_clientObject = data;
1392 m_clientDataType = wxClientData_Object;
1393 }
1394
1395 wxClientData *wxEvtHandler::DoGetClientObject() const
1396 {
1397 // it's not an error to call GetClientObject() on a window which doesn't
1398 // have client data at all - NULL will be returned
1399 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1400 wxT("this window doesn't have object client data") );
1401
1402 return m_clientObject;
1403 }
1404
1405 void wxEvtHandler::DoSetClientData( void *data )
1406 {
1407 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1408 wxT("can't have both object and void client data") );
1409
1410 m_clientData = data;
1411 m_clientDataType = wxClientData_Void;
1412 }
1413
1414 void *wxEvtHandler::DoGetClientData() const
1415 {
1416 // it's not an error to call GetClientData() on a window which doesn't have
1417 // client data at all - NULL will be returned
1418 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1419 wxT("this window doesn't have void client data") );
1420
1421 return m_clientData;
1422 }
1423
1424 #endif // wxUSE_BASE
1425
1426 #if wxUSE_GUI
1427
1428 // Find a window with the focus, that is also a descendant of the given window.
1429 // This is used to determine the window to initially send commands to.
1430 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1431 {
1432 // Process events starting with the window with the focus, if any.
1433 wxWindow* focusWin = wxWindow::FindFocus();
1434 wxWindow* win = focusWin;
1435
1436 // Check if this is a descendant of this frame.
1437 // If not, win will be set to NULL.
1438 while (win)
1439 {
1440 if (win == ancestor)
1441 break;
1442 else
1443 win = win->GetParent();
1444 }
1445 if (win == (wxWindow*) NULL)
1446 focusWin = (wxWindow*) NULL;
1447
1448 return focusWin;
1449 }
1450
1451 #endif // wxUSE_GUI
wxWidgets (Impactor)