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use wxString in wxDateTime methods (only partially done)
[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 #include "wx/event.h"
28
29 #ifndef WX_PRECOMP
30 #include "wx/list.h"
31 #include "wx/app.h"
32 #include "wx/utils.h"
33 #include "wx/stopwatch.h"
34 #include "wx/module.h"
35
36 #if wxUSE_GUI
37 #include "wx/control.h"
38 #include "wx/dc.h"
39 #include "wx/textctrl.h"
40 #include "wx/validate.h"
41 #endif // wxUSE_GUI
42 #endif
43
44 // ----------------------------------------------------------------------------
45 // wxWin macros
46 // ----------------------------------------------------------------------------
47
48 #if wxUSE_BASE
49 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
50 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
51 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
52 #endif // wxUSE_BASE
53
54 #if wxUSE_GUI
55 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
56 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
57 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
58 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
59 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
60 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
61 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
62 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
63 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
64 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
65 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
66 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
67 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
68 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
69 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
70 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
91 #endif // wxUSE_GUI
92
93 #if wxUSE_BASE
94
95 const wxEventTable *wxEvtHandler::GetEventTable() const
96 { return &wxEvtHandler::sm_eventTable; }
97
98 const wxEventTable wxEvtHandler::sm_eventTable =
99 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
100
101 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
102 { return wxEvtHandler::sm_eventHashTable; }
103
104 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
105
106 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
107 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
108
109
110 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
111 // leaked, so we need to manually clean up all event tables before checking for
112 // the memory leaks when using it, however this breaks re-initializing the
113 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
114 // event tables won't be rebuilt the next time, so disable this by default
115 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
116
117 class wxEventTableEntryModule: public wxModule
118 {
119 public:
120 wxEventTableEntryModule() { }
121 virtual bool OnInit() { return true; }
122 virtual void OnExit() { wxEventHashTable::ClearAll(); }
123
124 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
125 };
126
127 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
128
129 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
130
131 // ----------------------------------------------------------------------------
132 // global variables
133 // ----------------------------------------------------------------------------
134
135 // To put pending event handlers
136 wxList *wxPendingEvents = (wxList *)NULL;
137
138 #if wxUSE_THREADS
139 // protects wxPendingEvents list
140 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
141 #endif
142
143 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
144
145 // common event types are defined here, other event types are defined by the
146 // components which use them
147
148 const wxEventType wxEVT_FIRST = 10000;
149 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
150
151 DEFINE_EVENT_TYPE(wxEVT_NULL)
152 DEFINE_EVENT_TYPE(wxEVT_IDLE)
153 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
154 DEFINE_EVENT_TYPE(wxEVT_TIMER)
155
156 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
157
158 #endif // wxUSE_BASE
159
160 #if wxUSE_GUI
161
162 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
163
164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
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_MOUSE_CAPTURE_LOST)
267 DEFINE_EVENT_TYPE(wxEVT_PAINT)
268 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
269 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
270 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
271 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
272 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
273 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
274 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
275 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
276 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
277 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
278 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
279 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
280 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
281 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
282 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
283 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
284 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
285 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
286 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
287 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
288 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
289 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
290
291 // Clipboard events
292 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
293 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
294 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
295
296 // Generic command events
297 // Note: a click is a higher-level event than button down/up
298 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
299 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
304 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
305
306 // Help events
307 DEFINE_EVENT_TYPE(wxEVT_HELP)
308 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
309
310 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
311
312 #endif // wxUSE_GUI
313
314 #if wxUSE_BASE
315
316 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
317
318 // ============================================================================
319 // implementation
320 // ============================================================================
321
322 // ----------------------------------------------------------------------------
323 // event initialization
324 // ----------------------------------------------------------------------------
325
326 int wxNewEventType()
327 {
328 // MT-FIXME
329 static int s_lastUsedEventType = wxEVT_FIRST;
330
331 return s_lastUsedEventType++;
332 }
333
334 // ----------------------------------------------------------------------------
335 // wxEvent
336 // ----------------------------------------------------------------------------
337
338 /*
339 * General wxWidgets events, covering
340 * all interesting things that might happen (button clicking, resizing,
341 * setting text in widgets, etc.).
342 *
343 * For each completely new event type, derive a new event class.
344 *
345 */
346
347 wxEvent::wxEvent(int theId, wxEventType commandType )
348 {
349 m_eventType = commandType;
350 m_eventObject = (wxObject *) NULL;
351 m_timeStamp = 0;
352 m_id = theId;
353 m_skipped = false;
354 m_callbackUserData = (wxObject *) NULL;
355 m_isCommandEvent = false;
356 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
357 }
358
359 wxEvent::wxEvent(const wxEvent &src)
360 : wxObject(src)
361 , m_eventObject(src.m_eventObject)
362 , m_eventType(src.m_eventType)
363 , m_timeStamp(src.m_timeStamp)
364 , m_id(src.m_id)
365 , m_callbackUserData(src.m_callbackUserData)
366 , m_propagationLevel(src.m_propagationLevel)
367 , m_skipped(src.m_skipped)
368 , m_isCommandEvent(src.m_isCommandEvent)
369 {
370 }
371
372 #endif // wxUSE_BASE
373
374 #if wxUSE_GUI
375
376 /*
377 * Command events
378 *
379 */
380
381 #ifdef __VISUALC__
382 // 'this' : used in base member initializer list (for m_commandString)
383 #pragma warning(disable:4355)
384 #endif
385
386 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
387 : wxEvent(theId, commandType)
388 {
389 m_clientData = (char *) NULL;
390 m_clientObject = (wxClientData *) NULL;
391 m_extraLong = 0;
392 m_commandInt = 0;
393 m_isCommandEvent = true;
394
395 // the command events are propagated upwards by default
396 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
397 }
398
399 #ifdef __VISUALC__
400 #pragma warning(default:4355)
401 #endif
402
403 wxString wxCommandEvent::GetString() const
404 {
405 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
406 return m_cmdString;
407 else
408 {
409 #if wxUSE_TEXTCTRL
410 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
411 if(txt)
412 return txt->GetValue();
413 else
414 #endif // wxUSE_TEXTCTRL
415 return m_cmdString;
416 }
417 }
418
419 /*
420 * UI update events
421 */
422
423 #if wxUSE_LONGLONG
424 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
425 #endif
426
427 long wxUpdateUIEvent::sm_updateInterval = 0;
428
429 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
430
431 // Can we update?
432 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
433 {
434 // Don't update if we've switched global updating off
435 // and this window doesn't support updates.
436 if (win &&
437 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
438 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
439 return false;
440
441 if (sm_updateInterval == -1)
442 return false;
443
444 if (sm_updateInterval == 0)
445 return true;
446
447 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
448 wxLongLong now = wxGetLocalTimeMillis();
449 if (now > (sm_lastUpdate + sm_updateInterval))
450 {
451 return true;
452 }
453
454 return false;
455 #else
456 // If we don't have wxStopWatch or wxLongLong, we
457 // should err on the safe side and update now anyway.
458 return true;
459 #endif
460 }
461
462 // Reset the update time to provide a delay until the next
463 // time we should update
464 void wxUpdateUIEvent::ResetUpdateTime()
465 {
466 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
467 if (sm_updateInterval > 0)
468 {
469 wxLongLong now = wxGetLocalTimeMillis();
470 if (now > (sm_lastUpdate + sm_updateInterval))
471 {
472 sm_lastUpdate = now;
473 }
474 }
475 #endif
476 }
477
478 /*
479 * Scroll events
480 */
481
482 wxScrollEvent::wxScrollEvent(wxEventType commandType,
483 int id,
484 int pos,
485 int orient)
486 : wxCommandEvent(commandType, id)
487 {
488 m_extraLong = orient;
489 m_commandInt = pos;
490 }
491
492 /*
493 * ScrollWin events
494 */
495
496 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
497 int pos,
498 int orient)
499 {
500 m_eventType = commandType;
501 m_extraLong = orient;
502 m_commandInt = pos;
503 }
504
505 /*
506 * Mouse events
507 *
508 */
509
510 wxMouseEvent::wxMouseEvent(wxEventType commandType)
511 {
512 m_eventType = commandType;
513 m_metaDown = false;
514 m_altDown = false;
515 m_controlDown = false;
516 m_shiftDown = false;
517 m_leftDown = false;
518 m_rightDown = false;
519 m_middleDown = false;
520 m_x = 0;
521 m_y = 0;
522 m_wheelRotation = 0;
523 m_wheelDelta = 0;
524 m_linesPerAction = 0;
525 m_wheelAxis = 0;
526 }
527
528 void wxMouseEvent::Assign(const wxMouseEvent& event)
529 {
530 m_eventType = event.m_eventType;
531
532 m_x = event.m_x;
533 m_y = event.m_y;
534
535 m_leftDown = event.m_leftDown;
536 m_middleDown = event.m_middleDown;
537 m_rightDown = event.m_rightDown;
538
539 m_controlDown = event.m_controlDown;
540 m_shiftDown = event.m_shiftDown;
541 m_altDown = event.m_altDown;
542 m_metaDown = event.m_metaDown;
543
544 m_wheelRotation = event.m_wheelRotation;
545 m_wheelDelta = event.m_wheelDelta;
546 m_linesPerAction = event.m_linesPerAction;
547 m_wheelAxis = event.m_wheelAxis;
548 }
549
550 // return true if was a button dclick event
551 bool wxMouseEvent::ButtonDClick(int but) const
552 {
553 switch (but)
554 {
555 default:
556 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
557 // fall through
558
559 case wxMOUSE_BTN_ANY:
560 return (LeftDClick() || MiddleDClick() || RightDClick());
561
562 case wxMOUSE_BTN_LEFT:
563 return LeftDClick();
564
565 case wxMOUSE_BTN_MIDDLE:
566 return MiddleDClick();
567
568 case wxMOUSE_BTN_RIGHT:
569 return RightDClick();
570 }
571 }
572
573 // return true if was a button down event
574 bool wxMouseEvent::ButtonDown(int but) const
575 {
576 switch (but)
577 {
578 default:
579 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
580 // fall through
581
582 case wxMOUSE_BTN_ANY:
583 return (LeftDown() || MiddleDown() || RightDown());
584
585 case wxMOUSE_BTN_LEFT:
586 return LeftDown();
587
588 case wxMOUSE_BTN_MIDDLE:
589 return MiddleDown();
590
591 case wxMOUSE_BTN_RIGHT:
592 return RightDown();
593 }
594 }
595
596 // return true if was a button up event
597 bool wxMouseEvent::ButtonUp(int but) const
598 {
599 switch (but)
600 {
601 default:
602 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
603 // fall through
604
605 case wxMOUSE_BTN_ANY:
606 return (LeftUp() || MiddleUp() || RightUp());
607
608 case wxMOUSE_BTN_LEFT:
609 return LeftUp();
610
611 case wxMOUSE_BTN_MIDDLE:
612 return MiddleUp();
613
614 case wxMOUSE_BTN_RIGHT:
615 return RightUp();
616 }
617 }
618
619 // return true if the given button is currently changing state
620 bool wxMouseEvent::Button(int but) const
621 {
622 switch (but)
623 {
624 default:
625 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
626 // fall through
627
628 case wxMOUSE_BTN_ANY:
629 return ButtonUp(wxMOUSE_BTN_ANY) ||
630 ButtonDown(wxMOUSE_BTN_ANY) ||
631 ButtonDClick(wxMOUSE_BTN_ANY);
632
633 case wxMOUSE_BTN_LEFT:
634 return LeftDown() || LeftUp() || LeftDClick();
635
636 case wxMOUSE_BTN_MIDDLE:
637 return MiddleDown() || MiddleUp() || MiddleDClick();
638
639 case wxMOUSE_BTN_RIGHT:
640 return RightDown() || RightUp() || RightDClick();
641 }
642 }
643
644 bool wxMouseEvent::ButtonIsDown(int but) const
645 {
646 switch (but)
647 {
648 default:
649 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
650 // fall through
651
652 case wxMOUSE_BTN_ANY:
653 return LeftIsDown() || MiddleIsDown() || RightIsDown();
654
655 case wxMOUSE_BTN_LEFT:
656 return LeftIsDown();
657
658 case wxMOUSE_BTN_MIDDLE:
659 return MiddleIsDown();
660
661 case wxMOUSE_BTN_RIGHT:
662 return RightIsDown();
663 }
664 }
665
666 int wxMouseEvent::GetButton() const
667 {
668 for ( int i = 1; i <= 3; i++ )
669 {
670 if ( Button(i) )
671 {
672 return i;
673 }
674 }
675
676 return wxMOUSE_BTN_NONE;
677 }
678
679 // Find the logical position of the event given the DC
680 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
681 {
682 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
683 return pt;
684 }
685
686
687 /*
688 * Keyboard event
689 *
690 */
691
692 wxKeyEvent::wxKeyEvent(wxEventType type)
693 {
694 m_eventType = type;
695 m_shiftDown = false;
696 m_controlDown = false;
697 m_metaDown = false;
698 m_altDown = false;
699 m_keyCode = 0;
700 m_scanCode = 0;
701 #if wxUSE_UNICODE
702 m_uniChar = 0;
703 #endif
704 }
705
706 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
707 : wxEvent(evt)
708 {
709 m_x = evt.m_x;
710 m_y = evt.m_y;
711
712 m_keyCode = evt.m_keyCode;
713
714 m_controlDown = evt.m_controlDown;
715 m_shiftDown = evt.m_shiftDown;
716 m_altDown = evt.m_altDown;
717 m_metaDown = evt.m_metaDown;
718 m_scanCode = evt.m_scanCode;
719 m_rawCode = evt.m_rawCode;
720 m_rawFlags = evt.m_rawFlags;
721
722 #if wxUSE_UNICODE
723 m_uniChar = evt.m_uniChar;
724 #endif
725 }
726
727 #if WXWIN_COMPATIBILITY_2_6
728 long wxKeyEvent::KeyCode() const
729 {
730 return m_keyCode;
731 }
732 #endif // WXWIN_COMPATIBILITY_2_6
733
734 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
735 {
736 SetEventType(wxEVT_CREATE);
737 SetEventObject(win);
738 }
739
740 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
741 {
742 SetEventType(wxEVT_DESTROY);
743 SetEventObject(win);
744 }
745
746 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
747 : wxCommandEvent(wxEVT_CHILD_FOCUS)
748 {
749 SetEventObject(win);
750 }
751
752 // ----------------------------------------------------------------------------
753 // wxHelpEvent
754 // ----------------------------------------------------------------------------
755
756 /* static */
757 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
758 {
759 if ( origin == Origin_Unknown )
760 {
761 // assume that the event comes from the help button if it's not from
762 // keyboard and that pressing F1 always results in the help event
763 origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
764 }
765
766 return origin;
767 }
768
769 #endif // wxUSE_GUI
770
771
772 #if wxUSE_BASE
773
774 // ----------------------------------------------------------------------------
775 // wxEventHashTable
776 // ----------------------------------------------------------------------------
777
778 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
779
780 wxEventHashTable* wxEventHashTable::sm_first = NULL;
781
782 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
783 : m_table(table),
784 m_rebuildHash(true)
785 {
786 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
787
788 m_next = sm_first;
789 if (m_next)
790 m_next->m_previous = this;
791 sm_first = this;
792 }
793
794 wxEventHashTable::~wxEventHashTable()
795 {
796 if (m_next)
797 m_next->m_previous = m_previous;
798 if (m_previous)
799 m_previous->m_next = m_next;
800 if (sm_first == this)
801 sm_first = m_next;
802
803 Clear();
804 }
805
806 void wxEventHashTable::Clear()
807 {
808 for ( size_t i = 0; i < m_size; i++ )
809 {
810 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
811 delete eTTnode;
812 }
813
814 delete[] m_eventTypeTable;
815 m_eventTypeTable = NULL;
816
817 m_size = 0;
818 }
819
820 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
821
822 // Clear all tables
823 void wxEventHashTable::ClearAll()
824 {
825 wxEventHashTable* table = sm_first;
826 while (table)
827 {
828 table->Clear();
829 table = table->m_next;
830 }
831 }
832
833 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
834
835 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
836 {
837 if (m_rebuildHash)
838 {
839 InitHashTable();
840 m_rebuildHash = false;
841 }
842
843 if (!m_eventTypeTable)
844 return false;
845
846 // Find all entries for the given event type.
847 wxEventType eventType = event.GetEventType();
848 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
849 if (eTTnode && eTTnode->eventType == eventType)
850 {
851 // Now start the search for an event handler
852 // that can handle an event with the given ID.
853 const wxEventTableEntryPointerArray&
854 eventEntryTable = eTTnode->eventEntryTable;
855
856 const size_t count = eventEntryTable.GetCount();
857 for (size_t n = 0; n < count; n++)
858 {
859 if ( wxEvtHandler::
860 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
861 {
862 return true;
863 }
864 }
865 }
866
867 return false;
868 }
869
870 void wxEventHashTable::InitHashTable()
871 {
872 // Loop over the event tables and all its base tables.
873 const wxEventTable *table = &m_table;
874 while (table)
875 {
876 // Retrieve all valid event handler entries
877 const wxEventTableEntry *entry = table->entries;
878 while (entry->m_fn != 0)
879 {
880 // Add the event entry in the Hash.
881 AddEntry(*entry);
882
883 entry++;
884 }
885
886 table = table->baseTable;
887 }
888
889 // Lets free some memory.
890 size_t i;
891 for(i = 0; i < m_size; i++)
892 {
893 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
894 if (eTTnode)
895 {
896 eTTnode->eventEntryTable.Shrink();
897 }
898 }
899 }
900
901 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
902 {
903 // This might happen 'accidentally' as the app is exiting
904 if (!m_eventTypeTable)
905 return;
906
907 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
908 EventTypeTablePointer eTTnode = *peTTnode;
909
910 if (eTTnode)
911 {
912 if (eTTnode->eventType != entry.m_eventType)
913 {
914 // Resize the table!
915 GrowEventTypeTable();
916 // Try again to add it.
917 AddEntry(entry);
918 return;
919 }
920 }
921 else
922 {
923 eTTnode = new EventTypeTable;
924 eTTnode->eventType = entry.m_eventType;
925 *peTTnode = eTTnode;
926 }
927
928 // Fill all hash entries between entry.m_id and entry.m_lastId...
929 eTTnode->eventEntryTable.Add(&entry);
930 }
931
932 void wxEventHashTable::AllocEventTypeTable(size_t size)
933 {
934 m_eventTypeTable = new EventTypeTablePointer[size];
935 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
936 m_size = size;
937 }
938
939 void wxEventHashTable::GrowEventTypeTable()
940 {
941 size_t oldSize = m_size;
942 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
943
944 // TODO: Search the most optimal grow sequence
945 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
946
947 for ( size_t i = 0; i < oldSize; /* */ )
948 {
949 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
950 if (eTToldNode)
951 {
952 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
953 EventTypeTablePointer eTTnode = *peTTnode;
954
955 // Check for collision, we don't want any.
956 if (eTTnode)
957 {
958 GrowEventTypeTable();
959 continue; // Don't increment the counter,
960 // as we still need to add this element.
961 }
962 else
963 {
964 // Get the old value and put it in the new table.
965 *peTTnode = oldEventTypeTable[i];
966 }
967 }
968
969 i++;
970 }
971
972 delete[] oldEventTypeTable;
973 }
974
975
976 // ----------------------------------------------------------------------------
977 // wxEvtHandler
978 // ----------------------------------------------------------------------------
979
980 /*
981 * Event handler
982 */
983
984 wxEvtHandler::wxEvtHandler()
985 {
986 m_nextHandler = (wxEvtHandler *) NULL;
987 m_previousHandler = (wxEvtHandler *) NULL;
988 m_enabled = true;
989 m_dynamicEvents = (wxList *) NULL;
990 m_pendingEvents = (wxList *) NULL;
991 #if wxUSE_THREADS
992 # if !defined(__VISAGECPP__)
993 m_eventsLocker = new wxCriticalSection;
994 # endif
995 #endif
996
997 // no client data (yet)
998 m_clientData = NULL;
999 m_clientDataType = wxClientData_None;
1000 }
1001
1002 wxEvtHandler::~wxEvtHandler()
1003 {
1004 // Takes itself out of the list of handlers
1005 if (m_previousHandler)
1006 m_previousHandler->m_nextHandler = m_nextHandler;
1007
1008 if (m_nextHandler)
1009 m_nextHandler->m_previousHandler = m_previousHandler;
1010
1011 if (m_dynamicEvents)
1012 {
1013 for ( wxList::iterator it = m_dynamicEvents->begin(),
1014 end = m_dynamicEvents->end();
1015 it != end;
1016 ++it )
1017 {
1018 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1019 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1020 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1021 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1022 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1023
1024 if (entry->m_callbackUserData)
1025 delete entry->m_callbackUserData;
1026 delete entry;
1027 }
1028 delete m_dynamicEvents;
1029 };
1030
1031 if (m_pendingEvents)
1032 m_pendingEvents->DeleteContents(true);
1033 delete m_pendingEvents;
1034
1035 #if wxUSE_THREADS
1036 # if !defined(__VISAGECPP__)
1037 delete m_eventsLocker;
1038 # endif
1039
1040 // Remove us from wxPendingEvents if necessary.
1041 if(wxPendingEventsLocker)
1042 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1043 if ( wxPendingEvents )
1044 {
1045 // Delete all occurences of this from the list of pending events
1046 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1047 }
1048 if(wxPendingEventsLocker)
1049 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1050 #endif
1051
1052 // we only delete object data, not untyped
1053 if ( m_clientDataType == wxClientData_Object )
1054 delete m_clientObject;
1055 }
1056
1057 #if wxUSE_THREADS
1058
1059 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1060 {
1061 // check that we are really in a child thread
1062 wxASSERT_MSG( !wxThread::IsMain(),
1063 wxT("use ProcessEvent() in main thread") );
1064
1065 AddPendingEvent(event);
1066
1067 return true;
1068 }
1069
1070 void wxEvtHandler::ClearEventLocker()
1071 {
1072 #if !defined(__VISAGECPP__)
1073 delete m_eventsLocker;
1074 m_eventsLocker = NULL;
1075 #endif
1076 }
1077
1078 #endif // wxUSE_THREADS
1079
1080 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1081 {
1082 // 1) Add event to list of pending events of this event handler
1083
1084 wxEvent *eventCopy = event.Clone();
1085
1086 // we must be able to copy the events here so the event class must
1087 // implement Clone() properly instead of just providing a NULL stab for it
1088 wxCHECK_RET( eventCopy,
1089 _T("events of this type aren't supposed to be posted") );
1090
1091 wxENTER_CRIT_SECT( Lock() );
1092
1093 if ( !m_pendingEvents )
1094 m_pendingEvents = new wxList;
1095
1096 m_pendingEvents->Append(eventCopy);
1097
1098 wxLEAVE_CRIT_SECT( Lock() );
1099
1100 // 2) Add this event handler to list of event handlers that
1101 // have pending events.
1102
1103 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1104
1105 if ( !wxPendingEvents )
1106 wxPendingEvents = new wxList;
1107 wxPendingEvents->Append(this);
1108
1109 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1110
1111 // 3) Inform the system that new pending events are somewhere,
1112 // and that these should be processed in idle time.
1113 wxWakeUpIdle();
1114 }
1115
1116 void wxEvtHandler::ProcessPendingEvents()
1117 {
1118 // this method is only called by wxApp if this handler does have
1119 // pending events
1120 wxCHECK_RET( m_pendingEvents,
1121 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1122
1123 wxENTER_CRIT_SECT( Lock() );
1124
1125 // we leave the loop once we have processed all events that were present at
1126 // the start of ProcessPendingEvents because otherwise we could get into
1127 // infinite loop if the pending event handler execution resulted in another
1128 // event being posted
1129 size_t n = m_pendingEvents->size();
1130 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1131 node;
1132 node = m_pendingEvents->GetFirst() )
1133 {
1134 wxEvent *event = (wxEvent *)node->GetData();
1135
1136 // It's importan we remove event from list before processing it.
1137 // Else a nested event loop, for example from a modal dialog, might
1138 // process the same event again.
1139
1140 m_pendingEvents->Erase(node);
1141
1142 wxLEAVE_CRIT_SECT( Lock() );
1143
1144 ProcessEvent(*event);
1145
1146 delete event;
1147
1148 wxENTER_CRIT_SECT( Lock() );
1149
1150 if ( --n == 0 )
1151 break;
1152 }
1153
1154 wxLEAVE_CRIT_SECT( Lock() );
1155 }
1156
1157 /*
1158 * Event table stuff
1159 */
1160 /* static */ bool
1161 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1162 wxEvtHandler *handler,
1163 wxEvent& event)
1164 {
1165 int tableId1 = entry.m_id,
1166 tableId2 = entry.m_lastId;
1167
1168 // match only if the event type is the same and the id is either -1 in
1169 // the event table (meaning "any") or the event id matches the id
1170 // specified in the event table either exactly or by falling into
1171 // range between first and last
1172 if ((tableId1 == wxID_ANY) ||
1173 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1174 (tableId2 != wxID_ANY &&
1175 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1176 {
1177 event.Skip(false);
1178 event.m_callbackUserData = entry.m_callbackUserData;
1179
1180 #if wxUSE_EXCEPTIONS
1181 if ( wxTheApp )
1182 {
1183 // call the handler via wxApp method which allows the user to catch
1184 // any exceptions which may be thrown by any handler in the program
1185 // in one place
1186 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1187 }
1188 else
1189 #endif // wxUSE_EXCEPTIONS
1190 {
1191 // no need for an extra virtual function call
1192 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1193 }
1194
1195 if (!event.GetSkipped())
1196 return true;
1197 }
1198
1199 return false;
1200 }
1201
1202 bool wxEvtHandler::TryParent(wxEvent& event)
1203 {
1204 if ( wxTheApp && (this != wxTheApp) )
1205 {
1206 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1207 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1208 // processed appropriately via SearchEventTable.
1209 if ( event.GetEventType() != wxEVT_IDLE )
1210 {
1211 if ( wxTheApp->ProcessEvent(event) )
1212 return true;
1213 }
1214 }
1215
1216 return false;
1217 }
1218
1219 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1220 {
1221 // allow the application to hook into event processing
1222 if ( wxTheApp )
1223 {
1224 int rc = wxTheApp->FilterEvent(event);
1225 if ( rc != -1 )
1226 {
1227 wxASSERT_MSG( rc == 1 || rc == 0,
1228 _T("unexpected wxApp::FilterEvent return value") );
1229
1230 return rc != 0;
1231 }
1232 //else: proceed normally
1233 }
1234
1235 // An event handler can be enabled or disabled
1236 if ( GetEvtHandlerEnabled() )
1237 {
1238 // if we have a validator, it has higher priority than our own event
1239 // table
1240 if ( TryValidator(event) )
1241 return true;
1242
1243 // Handle per-instance dynamic event tables first
1244 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1245 return true;
1246
1247 // Then static per-class event tables
1248 if ( GetEventHashTable().HandleEvent(event, this) )
1249 return true;
1250 }
1251
1252 // Try going down the event handler chain
1253 if ( GetNextHandler() )
1254 {
1255 if ( GetNextHandler()->ProcessEvent(event) )
1256 return true;
1257 }
1258
1259 // Finally propagate the event upwards the window chain and/or to the
1260 // application object as necessary
1261 return TryParent(event);
1262 }
1263
1264
1265 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1266 {
1267 const wxEventType eventType = event.GetEventType();
1268 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1269 {
1270 const wxEventTableEntry& entry = table.entries[i];
1271 if ( eventType == entry.m_eventType )
1272 {
1273 if ( ProcessEventIfMatches(entry, this, event) )
1274 return true;
1275 }
1276 }
1277
1278 return false;
1279 }
1280
1281 void wxEvtHandler::Connect( int id, int lastId,
1282 int eventType,
1283 wxObjectEventFunction func,
1284 wxObject *userData,
1285 wxEvtHandler* eventSink )
1286 {
1287 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1288 wxEventTableEntry *entry = new wxEventTableEntry;
1289 entry->m_eventType = eventType;
1290 entry->m_id = id;
1291 entry->m_lastId = lastId;
1292 entry->m_fn = func;
1293 entry->m_callbackUserData = userData;
1294 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1295 wxDynamicEventTableEntry *entry =
1296 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1297 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1298
1299 if (!m_dynamicEvents)
1300 m_dynamicEvents = new wxList;
1301
1302 // Insert at the front of the list so most recent additions are found first
1303 m_dynamicEvents->Insert( (wxObject*) entry );
1304 }
1305
1306 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1307 wxObjectEventFunction func,
1308 wxObject *userData,
1309 wxEvtHandler* eventSink )
1310 {
1311 if (!m_dynamicEvents)
1312 return false;
1313
1314 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1315 while (node)
1316 {
1317 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1318 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1319 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1320 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1321 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1322
1323 if ((entry->m_id == id) &&
1324 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1325 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1326 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1327 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1328 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1329 {
1330 if (entry->m_callbackUserData)
1331 delete entry->m_callbackUserData;
1332 m_dynamicEvents->Erase( node );
1333 delete entry;
1334 return true;
1335 }
1336 node = node->GetNext();
1337 }
1338 return false;
1339 }
1340
1341 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1342 {
1343 wxCHECK_MSG( m_dynamicEvents, false,
1344 wxT("caller should check that we have dynamic events") );
1345
1346 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1347 while (node)
1348 {
1349 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1350 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1351 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1352 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1353 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1354
1355 // get next node before (maybe) calling the event handler as it could
1356 // call Disconnect() invalidating the current node
1357 node = node->GetNext();
1358
1359 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1360 {
1361 wxEvtHandler *handler =
1362 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1363 entry->m_eventSink ? entry->m_eventSink
1364 :
1365 #endif
1366 this;
1367
1368 if ( ProcessEventIfMatches(*entry, handler, event) )
1369 {
1370 return true;
1371 }
1372 }
1373 }
1374
1375 return false;
1376 }
1377
1378 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1379 {
1380 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1381 wxT("can't have both object and void client data") );
1382
1383 if ( m_clientObject )
1384 delete m_clientObject;
1385
1386 m_clientObject = data;
1387 m_clientDataType = wxClientData_Object;
1388 }
1389
1390 wxClientData *wxEvtHandler::DoGetClientObject() const
1391 {
1392 // it's not an error to call GetClientObject() on a window which doesn't
1393 // have client data at all - NULL will be returned
1394 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1395 wxT("this window doesn't have object client data") );
1396
1397 return m_clientObject;
1398 }
1399
1400 void wxEvtHandler::DoSetClientData( void *data )
1401 {
1402 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1403 wxT("can't have both object and void client data") );
1404
1405 m_clientData = data;
1406 m_clientDataType = wxClientData_Void;
1407 }
1408
1409 void *wxEvtHandler::DoGetClientData() const
1410 {
1411 // it's not an error to call GetClientData() on a window which doesn't have
1412 // client data at all - NULL will be returned
1413 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1414 wxT("this window doesn't have void client data") );
1415
1416 return m_clientData;
1417 }
1418
1419 #endif // wxUSE_BASE
1420
1421 #if wxUSE_GUI
1422
1423 // Find a window with the focus, that is also a descendant of the given window.
1424 // This is used to determine the window to initially send commands to.
1425 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1426 {
1427 // Process events starting with the window with the focus, if any.
1428 wxWindow* focusWin = wxWindow::FindFocus();
1429 wxWindow* win = focusWin;
1430
1431 // Check if this is a descendant of this frame.
1432 // If not, win will be set to NULL.
1433 while (win)
1434 {
1435 if (win == ancestor)
1436 break;
1437 else
1438 win = win->GetParent();
1439 }
1440 if (win == (wxWindow*) NULL)
1441 focusWin = (wxWindow*) NULL;
1442
1443 return focusWin;
1444 }
1445
1446 // ----------------------------------------------------------------------------
1447 // wxEventBlocker
1448 // ----------------------------------------------------------------------------
1449
1450 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1451 {
1452 wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1453
1454 m_window = win;
1455
1456 Block(type);
1457 m_window->PushEventHandler(this);
1458 }
1459
1460 wxEventBlocker::~wxEventBlocker()
1461 {
1462 wxEvtHandler *popped = m_window->PopEventHandler(false);
1463 wxCHECK_RET(popped == this,
1464 wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1465 }
1466
1467 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1468 {
1469 // should this event be blocked?
1470 for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1471 {
1472 wxEventType t = (wxEventType)m_eventsToBlock[i];
1473 if ( t == wxEVT_ANY || t == event.GetEventType() )
1474 return true; // yes, it should: mark this event as processed
1475 }
1476
1477 return false;
1478 }
1479
1480 #endif // wxUSE_GUI
wxWidgets (Impactor)