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Added EVT_MOVE_START, EVT_MOVE_END (wxMSW only for now)
[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/window.h"
38 #include "wx/control.h"
39 #include "wx/dc.h"
40 #include "wx/textctrl.h"
41 #include "wx/validate.h"
42 #endif // wxUSE_GUI
43 #endif
44
45 // ----------------------------------------------------------------------------
46 // wxWin macros
47 // ----------------------------------------------------------------------------
48
49 #if wxUSE_BASE
50 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
51 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
52 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
53 #endif // wxUSE_BASE
54
55 #if wxUSE_GUI
56 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
57 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
58 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
59 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
60 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
61 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
62 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
63 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
64 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
65 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
66 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
67 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
68 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
69 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
70 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
91 IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
92 #endif // wxUSE_GUI
93
94 #if wxUSE_BASE
95
96 const wxEventTable *wxEvtHandler::GetEventTable() const
97 { return &wxEvtHandler::sm_eventTable; }
98
99 const wxEventTable wxEvtHandler::sm_eventTable =
100 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
101
102 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
103 { return wxEvtHandler::sm_eventHashTable; }
104
105 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
106
107 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
108 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
109
110
111 // wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
112 // leaked, so we need to manually clean up all event tables before checking for
113 // the memory leaks when using it, however this breaks re-initializing the
114 // library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
115 // event tables won't be rebuilt the next time, so disable this by default
116 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
117
118 class wxEventTableEntryModule: public wxModule
119 {
120 public:
121 wxEventTableEntryModule() { }
122 virtual bool OnInit() { return true; }
123 virtual void OnExit() { wxEventHashTable::ClearAll(); }
124
125 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
126 };
127
128 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
129
130 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
131
132 // ----------------------------------------------------------------------------
133 // global variables
134 // ----------------------------------------------------------------------------
135
136 // To put pending event handlers
137 wxList *wxPendingEvents = (wxList *)NULL;
138
139 #if wxUSE_THREADS
140 // protects wxPendingEvents list
141 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
142 #endif
143
144 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
145
146 // common event types are defined here, other event types are defined by the
147 // components which use them
148
149 const wxEventType wxEVT_FIRST = 10000;
150 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
151
152 DEFINE_EVENT_TYPE(wxEVT_NULL)
153 DEFINE_EVENT_TYPE(wxEVT_IDLE)
154 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
155 DEFINE_EVENT_TYPE(wxEVT_TIMER)
156
157 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
158
159 #endif // wxUSE_BASE
160
161 #if wxUSE_GUI
162
163 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
164
165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
178 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
179 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
180 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
181 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
182
183 // Mouse event types
184 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
185 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
186 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
187 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
188 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
189 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
190 DEFINE_EVENT_TYPE(wxEVT_MOTION)
191 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
192 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
193 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
194 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
195 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
196 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
197 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
198 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
199 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
200 DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
201 DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
202 DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
203 DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
204 DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
205 DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
206
207 // Non-client mouse events
208 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
209 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
210 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
211 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
212 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
213 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
214 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
215 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
216 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
217 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
218 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
219 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
220
221 // Character input event type
222 DEFINE_EVENT_TYPE(wxEVT_CHAR)
223 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
224 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
225 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
226 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
227 #if wxUSE_HOTKEY
228 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
229 #endif
230
231 // Set cursor event
232 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
233
234 // wxScrollbar and wxSlider event identifiers
235 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
237 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
238 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
239 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
240 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
241 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
242 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
243 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
244
245 // Scroll events from wxWindow
246 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
247 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
248 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
249 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
250 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
251 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
252 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
253 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
254
255 // System events
256 DEFINE_EVENT_TYPE(wxEVT_SIZE)
257 DEFINE_EVENT_TYPE(wxEVT_SIZING)
258 DEFINE_EVENT_TYPE(wxEVT_MOVE)
259 DEFINE_EVENT_TYPE(wxEVT_MOVING)
260 DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
261 DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
262 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
263 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
264 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
265 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
266 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
267 DEFINE_EVENT_TYPE(wxEVT_POWER)
268 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
269 DEFINE_EVENT_TYPE(wxEVT_CREATE)
270 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
271 DEFINE_EVENT_TYPE(wxEVT_SHOW)
272 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
273 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
274 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
275 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
276 DEFINE_EVENT_TYPE(wxEVT_PAINT)
277 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
278 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
279 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
280 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
281 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
282 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
283 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
284 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
285 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
286 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
287 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
288 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
289 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
290 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
291 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
292 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
293 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
294 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
295 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
296 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
297 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
298 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
299
300 // Clipboard events
301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
303 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
304
305 // Generic command events
306 // Note: a click is a higher-level event than button down/up
307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
309 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
313 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
314
315 // Help events
316 DEFINE_EVENT_TYPE(wxEVT_HELP)
317 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
318
319 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
320
321 #endif // wxUSE_GUI
322
323 #if wxUSE_BASE
324
325 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
326
327 // ============================================================================
328 // implementation
329 // ============================================================================
330
331 // ----------------------------------------------------------------------------
332 // event initialization
333 // ----------------------------------------------------------------------------
334
335 int wxNewEventType()
336 {
337 // MT-FIXME
338 static int s_lastUsedEventType = wxEVT_FIRST;
339
340 return s_lastUsedEventType++;
341 }
342
343 // ----------------------------------------------------------------------------
344 // wxEvent
345 // ----------------------------------------------------------------------------
346
347 /*
348 * General wxWidgets events, covering
349 * all interesting things that might happen (button clicking, resizing,
350 * setting text in widgets, etc.).
351 *
352 * For each completely new event type, derive a new event class.
353 *
354 */
355
356 wxEvent::wxEvent(int theId, wxEventType commandType )
357 {
358 m_eventType = commandType;
359 m_eventObject = (wxObject *) NULL;
360 m_timeStamp = 0;
361 m_id = theId;
362 m_skipped = false;
363 m_callbackUserData = (wxObject *) NULL;
364 m_isCommandEvent = false;
365 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
366 }
367
368 wxEvent::wxEvent(const wxEvent &src)
369 : wxObject(src)
370 , m_eventObject(src.m_eventObject)
371 , m_eventType(src.m_eventType)
372 , m_timeStamp(src.m_timeStamp)
373 , m_id(src.m_id)
374 , m_callbackUserData(src.m_callbackUserData)
375 , m_propagationLevel(src.m_propagationLevel)
376 , m_skipped(src.m_skipped)
377 , m_isCommandEvent(src.m_isCommandEvent)
378 {
379 }
380
381 #endif // wxUSE_BASE
382
383 #if wxUSE_GUI
384
385 /*
386 * Command events
387 *
388 */
389
390 #ifdef __VISUALC__
391 // 'this' : used in base member initializer list (for m_commandString)
392 #pragma warning(disable:4355)
393 #endif
394
395 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
396 : wxEvent(theId, commandType)
397 {
398 m_clientData = (char *) NULL;
399 m_clientObject = (wxClientData *) NULL;
400 m_extraLong = 0;
401 m_commandInt = 0;
402 m_isCommandEvent = true;
403
404 // the command events are propagated upwards by default
405 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
406 }
407
408 #ifdef __VISUALC__
409 #pragma warning(default:4355)
410 #endif
411
412 wxString wxCommandEvent::GetString() const
413 {
414 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
415 return m_cmdString;
416 else
417 {
418 #if wxUSE_TEXTCTRL
419 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
420 if(txt)
421 return txt->GetValue();
422 else
423 #endif // wxUSE_TEXTCTRL
424 return m_cmdString;
425 }
426 }
427
428 /*
429 * UI update events
430 */
431
432 #if wxUSE_LONGLONG
433 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
434 #endif
435
436 long wxUpdateUIEvent::sm_updateInterval = 0;
437
438 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
439
440 // Can we update?
441 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
442 {
443 // Don't update if we've switched global updating off
444 // and this window doesn't support updates.
445 if (win &&
446 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
447 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
448 return false;
449
450 if (sm_updateInterval == -1)
451 return false;
452
453 if (sm_updateInterval == 0)
454 return true;
455
456 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
457 wxLongLong now = wxGetLocalTimeMillis();
458 if (now > (sm_lastUpdate + sm_updateInterval))
459 {
460 return true;
461 }
462
463 return false;
464 #else
465 // If we don't have wxStopWatch or wxLongLong, we
466 // should err on the safe side and update now anyway.
467 return true;
468 #endif
469 }
470
471 // Reset the update time to provide a delay until the next
472 // time we should update
473 void wxUpdateUIEvent::ResetUpdateTime()
474 {
475 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
476 if (sm_updateInterval > 0)
477 {
478 wxLongLong now = wxGetLocalTimeMillis();
479 if (now > (sm_lastUpdate + sm_updateInterval))
480 {
481 sm_lastUpdate = now;
482 }
483 }
484 #endif
485 }
486
487 /*
488 * Scroll events
489 */
490
491 wxScrollEvent::wxScrollEvent(wxEventType commandType,
492 int id,
493 int pos,
494 int orient)
495 : wxCommandEvent(commandType, id)
496 {
497 m_extraLong = orient;
498 m_commandInt = pos;
499 }
500
501 /*
502 * ScrollWin events
503 */
504
505 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
506 int pos,
507 int orient)
508 {
509 m_eventType = commandType;
510 m_extraLong = orient;
511 m_commandInt = pos;
512 }
513
514 /*
515 * Mouse events
516 *
517 */
518
519 wxMouseEvent::wxMouseEvent(wxEventType commandType)
520 {
521 m_eventType = commandType;
522 m_metaDown = false;
523 m_altDown = false;
524 m_controlDown = false;
525 m_shiftDown = false;
526 m_leftDown = false;
527 m_rightDown = false;
528 m_middleDown = false;
529 m_aux1Down = false;
530 m_aux2Down = false;
531 m_x = 0;
532 m_y = 0;
533 m_wheelRotation = 0;
534 m_wheelDelta = 0;
535 m_linesPerAction = 0;
536 m_wheelAxis = 0;
537 }
538
539 void wxMouseEvent::Assign(const wxMouseEvent& event)
540 {
541 m_eventType = event.m_eventType;
542
543 m_x = event.m_x;
544 m_y = event.m_y;
545
546 m_leftDown = event.m_leftDown;
547 m_middleDown = event.m_middleDown;
548 m_rightDown = event.m_rightDown;
549 m_aux1Down = event.m_aux1Down;
550 m_aux2Down = event.m_aux2Down;
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 m_wheelAxis = event.m_wheelAxis;
561 }
562
563 // return true if was a button dclick event
564 bool wxMouseEvent::ButtonDClick(int but) const
565 {
566 switch (but)
567 {
568 default:
569 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
570 // fall through
571
572 case wxMOUSE_BTN_ANY:
573 return (LeftDClick() || MiddleDClick() || RightDClick() ||
574 Aux1DClick() || Aux2DClick());
575
576 case wxMOUSE_BTN_LEFT:
577 return LeftDClick();
578
579 case wxMOUSE_BTN_MIDDLE:
580 return MiddleDClick();
581
582 case wxMOUSE_BTN_RIGHT:
583 return RightDClick();
584
585 case wxMOUSE_BTN_AUX1:
586 return Aux1DClick();
587
588 case wxMOUSE_BTN_AUX2:
589 return Aux2DClick();
590 }
591 }
592
593 // return true if was a button down event
594 bool wxMouseEvent::ButtonDown(int but) const
595 {
596 switch (but)
597 {
598 default:
599 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
600 // fall through
601
602 case wxMOUSE_BTN_ANY:
603 return (LeftDown() || MiddleDown() || RightDown() ||
604 Aux1Down() || Aux2Down());
605
606 case wxMOUSE_BTN_LEFT:
607 return LeftDown();
608
609 case wxMOUSE_BTN_MIDDLE:
610 return MiddleDown();
611
612 case wxMOUSE_BTN_RIGHT:
613 return RightDown();
614
615 case wxMOUSE_BTN_AUX1:
616 return Aux1Down();
617
618 case wxMOUSE_BTN_AUX2:
619 return Aux2Down();
620 }
621 }
622
623 // return true if was a button up event
624 bool wxMouseEvent::ButtonUp(int but) const
625 {
626 switch (but)
627 {
628 default:
629 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
630 // fall through
631
632 case wxMOUSE_BTN_ANY:
633 return (LeftUp() || MiddleUp() || RightUp() ||
634 Aux1Up() || Aux2Up());
635
636 case wxMOUSE_BTN_LEFT:
637 return LeftUp();
638
639 case wxMOUSE_BTN_MIDDLE:
640 return MiddleUp();
641
642 case wxMOUSE_BTN_RIGHT:
643 return RightUp();
644
645 case wxMOUSE_BTN_AUX1:
646 return Aux1Up();
647
648 case wxMOUSE_BTN_AUX2:
649 return Aux2Up();
650 }
651 }
652
653 // return true if the given button is currently changing state
654 bool wxMouseEvent::Button(int but) const
655 {
656 switch (but)
657 {
658 default:
659 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
660 // fall through
661
662 case wxMOUSE_BTN_ANY:
663 return ButtonUp(wxMOUSE_BTN_ANY) ||
664 ButtonDown(wxMOUSE_BTN_ANY) ||
665 ButtonDClick(wxMOUSE_BTN_ANY);
666
667 case wxMOUSE_BTN_LEFT:
668 return LeftDown() || LeftUp() || LeftDClick();
669
670 case wxMOUSE_BTN_MIDDLE:
671 return MiddleDown() || MiddleUp() || MiddleDClick();
672
673 case wxMOUSE_BTN_RIGHT:
674 return RightDown() || RightUp() || RightDClick();
675
676 case wxMOUSE_BTN_AUX1:
677 return Aux1Down() || Aux1Up() || Aux1DClick();
678
679 case wxMOUSE_BTN_AUX2:
680 return Aux2Down() || Aux2Up() || Aux2DClick();
681 }
682 }
683
684 bool wxMouseEvent::ButtonIsDown(int but) const
685 {
686 switch (but)
687 {
688 default:
689 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
690 // fall through
691
692 case wxMOUSE_BTN_ANY:
693 return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
694
695 case wxMOUSE_BTN_LEFT:
696 return LeftIsDown();
697
698 case wxMOUSE_BTN_MIDDLE:
699 return MiddleIsDown();
700
701 case wxMOUSE_BTN_RIGHT:
702 return RightIsDown();
703
704 case wxMOUSE_BTN_AUX1:
705 return Aux1IsDown();
706
707 case wxMOUSE_BTN_AUX2:
708 return Aux2IsDown();
709 }
710 }
711
712 int wxMouseEvent::GetButton() const
713 {
714 for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
715 {
716 if ( Button(i) )
717 {
718 return i;
719 }
720 }
721
722 return wxMOUSE_BTN_NONE;
723 }
724
725 // Find the logical position of the event given the DC
726 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
727 {
728 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
729 return pt;
730 }
731
732
733 /*
734 * Keyboard event
735 *
736 */
737
738 wxKeyEvent::wxKeyEvent(wxEventType type)
739 {
740 m_eventType = type;
741 m_shiftDown = false;
742 m_controlDown = false;
743 m_metaDown = false;
744 m_altDown = false;
745 m_keyCode = 0;
746 m_scanCode = 0;
747 #if wxUSE_UNICODE
748 m_uniChar = 0;
749 #endif
750 }
751
752 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
753 : wxEvent(evt)
754 {
755 m_x = evt.m_x;
756 m_y = evt.m_y;
757
758 m_keyCode = evt.m_keyCode;
759
760 m_controlDown = evt.m_controlDown;
761 m_shiftDown = evt.m_shiftDown;
762 m_altDown = evt.m_altDown;
763 m_metaDown = evt.m_metaDown;
764 m_scanCode = evt.m_scanCode;
765 m_rawCode = evt.m_rawCode;
766 m_rawFlags = evt.m_rawFlags;
767
768 #if wxUSE_UNICODE
769 m_uniChar = evt.m_uniChar;
770 #endif
771 }
772
773 #if WXWIN_COMPATIBILITY_2_6
774 long wxKeyEvent::KeyCode() const
775 {
776 return m_keyCode;
777 }
778 #endif // WXWIN_COMPATIBILITY_2_6
779
780 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
781 {
782 SetEventType(wxEVT_CREATE);
783 SetEventObject(win);
784 }
785
786 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
787 {
788 SetEventType(wxEVT_DESTROY);
789 SetEventObject(win);
790 }
791
792 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
793 : wxCommandEvent(wxEVT_CHILD_FOCUS)
794 {
795 SetEventObject(win);
796 }
797
798 // ----------------------------------------------------------------------------
799 // wxHelpEvent
800 // ----------------------------------------------------------------------------
801
802 /* static */
803 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
804 {
805 if ( origin == Origin_Unknown )
806 {
807 // assume that the event comes from the help button if it's not from
808 // keyboard and that pressing F1 always results in the help event
809 origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
810 }
811
812 return origin;
813 }
814
815 #endif // wxUSE_GUI
816
817
818 #if wxUSE_BASE
819
820 // ----------------------------------------------------------------------------
821 // wxEventHashTable
822 // ----------------------------------------------------------------------------
823
824 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
825
826 wxEventHashTable* wxEventHashTable::sm_first = NULL;
827
828 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
829 : m_table(table),
830 m_rebuildHash(true)
831 {
832 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
833
834 m_next = sm_first;
835 if (m_next)
836 m_next->m_previous = this;
837 sm_first = this;
838 }
839
840 wxEventHashTable::~wxEventHashTable()
841 {
842 if (m_next)
843 m_next->m_previous = m_previous;
844 if (m_previous)
845 m_previous->m_next = m_next;
846 if (sm_first == this)
847 sm_first = m_next;
848
849 Clear();
850 }
851
852 void wxEventHashTable::Clear()
853 {
854 for ( size_t i = 0; i < m_size; i++ )
855 {
856 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
857 delete eTTnode;
858 }
859
860 delete[] m_eventTypeTable;
861 m_eventTypeTable = NULL;
862
863 m_size = 0;
864 }
865
866 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
867
868 // Clear all tables
869 void wxEventHashTable::ClearAll()
870 {
871 wxEventHashTable* table = sm_first;
872 while (table)
873 {
874 table->Clear();
875 table = table->m_next;
876 }
877 }
878
879 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
880
881 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
882 {
883 if (m_rebuildHash)
884 {
885 InitHashTable();
886 m_rebuildHash = false;
887 }
888
889 if (!m_eventTypeTable)
890 return false;
891
892 // Find all entries for the given event type.
893 wxEventType eventType = event.GetEventType();
894 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
895 if (eTTnode && eTTnode->eventType == eventType)
896 {
897 // Now start the search for an event handler
898 // that can handle an event with the given ID.
899 const wxEventTableEntryPointerArray&
900 eventEntryTable = eTTnode->eventEntryTable;
901
902 const size_t count = eventEntryTable.GetCount();
903 for (size_t n = 0; n < count; n++)
904 {
905 if ( wxEvtHandler::
906 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
907 {
908 return true;
909 }
910 }
911 }
912
913 return false;
914 }
915
916 void wxEventHashTable::InitHashTable()
917 {
918 // Loop over the event tables and all its base tables.
919 const wxEventTable *table = &m_table;
920 while (table)
921 {
922 // Retrieve all valid event handler entries
923 const wxEventTableEntry *entry = table->entries;
924 while (entry->m_fn != 0)
925 {
926 // Add the event entry in the Hash.
927 AddEntry(*entry);
928
929 entry++;
930 }
931
932 table = table->baseTable;
933 }
934
935 // Lets free some memory.
936 size_t i;
937 for(i = 0; i < m_size; i++)
938 {
939 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
940 if (eTTnode)
941 {
942 eTTnode->eventEntryTable.Shrink();
943 }
944 }
945 }
946
947 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
948 {
949 // This might happen 'accidentally' as the app is exiting
950 if (!m_eventTypeTable)
951 return;
952
953 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
954 EventTypeTablePointer eTTnode = *peTTnode;
955
956 if (eTTnode)
957 {
958 if (eTTnode->eventType != entry.m_eventType)
959 {
960 // Resize the table!
961 GrowEventTypeTable();
962 // Try again to add it.
963 AddEntry(entry);
964 return;
965 }
966 }
967 else
968 {
969 eTTnode = new EventTypeTable;
970 eTTnode->eventType = entry.m_eventType;
971 *peTTnode = eTTnode;
972 }
973
974 // Fill all hash entries between entry.m_id and entry.m_lastId...
975 eTTnode->eventEntryTable.Add(&entry);
976 }
977
978 void wxEventHashTable::AllocEventTypeTable(size_t size)
979 {
980 m_eventTypeTable = new EventTypeTablePointer[size];
981 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
982 m_size = size;
983 }
984
985 void wxEventHashTable::GrowEventTypeTable()
986 {
987 size_t oldSize = m_size;
988 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
989
990 // TODO: Search the most optimal grow sequence
991 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
992
993 for ( size_t i = 0; i < oldSize; /* */ )
994 {
995 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
996 if (eTToldNode)
997 {
998 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
999 EventTypeTablePointer eTTnode = *peTTnode;
1000
1001 // Check for collision, we don't want any.
1002 if (eTTnode)
1003 {
1004 GrowEventTypeTable();
1005 continue; // Don't increment the counter,
1006 // as we still need to add this element.
1007 }
1008 else
1009 {
1010 // Get the old value and put it in the new table.
1011 *peTTnode = oldEventTypeTable[i];
1012 }
1013 }
1014
1015 i++;
1016 }
1017
1018 delete[] oldEventTypeTable;
1019 }
1020
1021
1022 // ----------------------------------------------------------------------------
1023 // wxEvtHandler
1024 // ----------------------------------------------------------------------------
1025
1026 /*
1027 * Event handler
1028 */
1029
1030 wxEvtHandler::wxEvtHandler()
1031 {
1032 m_nextHandler = (wxEvtHandler *) NULL;
1033 m_previousHandler = (wxEvtHandler *) NULL;
1034 m_enabled = true;
1035 m_dynamicEvents = (wxList *) NULL;
1036 m_pendingEvents = (wxList *) NULL;
1037 #if wxUSE_THREADS
1038 # if !defined(__VISAGECPP__)
1039 m_eventsLocker = new wxCriticalSection;
1040 # endif
1041 #endif
1042
1043 // no client data (yet)
1044 m_clientData = NULL;
1045 m_clientDataType = wxClientData_None;
1046 }
1047
1048 wxEvtHandler::~wxEvtHandler()
1049 {
1050 // Takes itself out of the list of handlers
1051 if (m_previousHandler)
1052 m_previousHandler->m_nextHandler = m_nextHandler;
1053
1054 if (m_nextHandler)
1055 m_nextHandler->m_previousHandler = m_previousHandler;
1056
1057 if (m_dynamicEvents)
1058 {
1059 for ( wxList::iterator it = m_dynamicEvents->begin(),
1060 end = m_dynamicEvents->end();
1061 it != end;
1062 ++it )
1063 {
1064 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1065 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1066 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1067 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1068 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1069
1070 if (entry->m_callbackUserData)
1071 delete entry->m_callbackUserData;
1072 delete entry;
1073 }
1074 delete m_dynamicEvents;
1075 };
1076
1077 if (m_pendingEvents)
1078 m_pendingEvents->DeleteContents(true);
1079 delete m_pendingEvents;
1080
1081 #if wxUSE_THREADS
1082 # if !defined(__VISAGECPP__)
1083 delete m_eventsLocker;
1084 # endif
1085
1086 // Remove us from wxPendingEvents if necessary.
1087 if(wxPendingEventsLocker)
1088 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1089 if ( wxPendingEvents )
1090 {
1091 // Delete all occurences of this from the list of pending events
1092 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1093 }
1094 if(wxPendingEventsLocker)
1095 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1096 #endif
1097
1098 // we only delete object data, not untyped
1099 if ( m_clientDataType == wxClientData_Object )
1100 delete m_clientObject;
1101 }
1102
1103 #if wxUSE_THREADS
1104
1105 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1106 {
1107 // check that we are really in a child thread
1108 wxASSERT_MSG( !wxThread::IsMain(),
1109 wxT("use ProcessEvent() in main thread") );
1110
1111 AddPendingEvent(event);
1112
1113 return true;
1114 }
1115
1116 void wxEvtHandler::ClearEventLocker()
1117 {
1118 #if !defined(__VISAGECPP__)
1119 delete m_eventsLocker;
1120 m_eventsLocker = NULL;
1121 #endif
1122 }
1123
1124 #endif // wxUSE_THREADS
1125
1126 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1127 {
1128 // 1) Add event to list of pending events of this event handler
1129
1130 wxEvent *eventCopy = event.Clone();
1131
1132 // we must be able to copy the events here so the event class must
1133 // implement Clone() properly instead of just providing a NULL stab for it
1134 wxCHECK_RET( eventCopy,
1135 _T("events of this type aren't supposed to be posted") );
1136
1137 wxENTER_CRIT_SECT( Lock() );
1138
1139 if ( !m_pendingEvents )
1140 m_pendingEvents = new wxList;
1141
1142 m_pendingEvents->Append(eventCopy);
1143
1144 wxLEAVE_CRIT_SECT( Lock() );
1145
1146 // 2) Add this event handler to list of event handlers that
1147 // have pending events.
1148
1149 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1150
1151 if ( !wxPendingEvents )
1152 wxPendingEvents = new wxList;
1153 wxPendingEvents->Append(this);
1154
1155 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1156
1157 // 3) Inform the system that new pending events are somewhere,
1158 // and that these should be processed in idle time.
1159 wxWakeUpIdle();
1160 }
1161
1162 void wxEvtHandler::ProcessPendingEvents()
1163 {
1164 // this method is only called by wxApp if this handler does have
1165 // pending events
1166 wxCHECK_RET( m_pendingEvents,
1167 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1168
1169 wxENTER_CRIT_SECT( Lock() );
1170
1171 // we leave the loop once we have processed all events that were present at
1172 // the start of ProcessPendingEvents because otherwise we could get into
1173 // infinite loop if the pending event handler execution resulted in another
1174 // event being posted
1175 size_t n = m_pendingEvents->size();
1176 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1177 node;
1178 node = m_pendingEvents->GetFirst() )
1179 {
1180 wxEvent *event = (wxEvent *)node->GetData();
1181
1182 // It's importan we remove event from list before processing it.
1183 // Else a nested event loop, for example from a modal dialog, might
1184 // process the same event again.
1185
1186 m_pendingEvents->Erase(node);
1187
1188 wxLEAVE_CRIT_SECT( Lock() );
1189
1190 ProcessEvent(*event);
1191
1192 delete event;
1193
1194 wxENTER_CRIT_SECT( Lock() );
1195
1196 if ( --n == 0 )
1197 break;
1198 }
1199
1200 wxLEAVE_CRIT_SECT( Lock() );
1201 }
1202
1203 /*
1204 * Event table stuff
1205 */
1206 /* static */ bool
1207 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1208 wxEvtHandler *handler,
1209 wxEvent& event)
1210 {
1211 int tableId1 = entry.m_id,
1212 tableId2 = entry.m_lastId;
1213
1214 // match only if the event type is the same and the id is either -1 in
1215 // the event table (meaning "any") or the event id matches the id
1216 // specified in the event table either exactly or by falling into
1217 // range between first and last
1218 if ((tableId1 == wxID_ANY) ||
1219 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1220 (tableId2 != wxID_ANY &&
1221 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1222 {
1223 event.Skip(false);
1224 event.m_callbackUserData = entry.m_callbackUserData;
1225
1226 #if wxUSE_EXCEPTIONS
1227 if ( wxTheApp )
1228 {
1229 // call the handler via wxApp method which allows the user to catch
1230 // any exceptions which may be thrown by any handler in the program
1231 // in one place
1232 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1233 }
1234 else
1235 #endif // wxUSE_EXCEPTIONS
1236 {
1237 // no need for an extra virtual function call
1238 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1239 }
1240
1241 if (!event.GetSkipped())
1242 return true;
1243 }
1244
1245 return false;
1246 }
1247
1248 bool wxEvtHandler::TryParent(wxEvent& event)
1249 {
1250 if ( wxTheApp && (this != wxTheApp) )
1251 {
1252 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1253 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1254 // processed appropriately via SearchEventTable.
1255 if ( event.GetEventType() != wxEVT_IDLE )
1256 {
1257 if ( wxTheApp->ProcessEvent(event) )
1258 return true;
1259 }
1260 }
1261
1262 return false;
1263 }
1264
1265 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1266 {
1267 // allow the application to hook into event processing
1268 if ( wxTheApp )
1269 {
1270 int rc = wxTheApp->FilterEvent(event);
1271 if ( rc != -1 )
1272 {
1273 wxASSERT_MSG( rc == 1 || rc == 0,
1274 _T("unexpected wxApp::FilterEvent return value") );
1275
1276 return rc != 0;
1277 }
1278 //else: proceed normally
1279 }
1280
1281 // An event handler can be enabled or disabled
1282 if ( GetEvtHandlerEnabled() )
1283 {
1284 // if we have a validator, it has higher priority than our own event
1285 // table
1286 if ( TryValidator(event) )
1287 return true;
1288
1289 // Handle per-instance dynamic event tables first
1290 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1291 return true;
1292
1293 // Then static per-class event tables
1294 if ( GetEventHashTable().HandleEvent(event, this) )
1295 return true;
1296 }
1297
1298 // Try going down the event handler chain
1299 if ( GetNextHandler() )
1300 {
1301 // notice that we shouldn't let the parent have the event even if the
1302 // next handler does not process it because it will have already passed
1303 // it to the parent in this case
1304 return GetNextHandler()->ProcessEvent(event);
1305 }
1306
1307 // Finally propagate the event upwards the window chain and/or to the
1308 // application object as necessary
1309 return TryParent(event);
1310 }
1311
1312
1313 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1314 {
1315 const wxEventType eventType = event.GetEventType();
1316 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1317 {
1318 const wxEventTableEntry& entry = table.entries[i];
1319 if ( eventType == entry.m_eventType )
1320 {
1321 if ( ProcessEventIfMatches(entry, this, event) )
1322 return true;
1323 }
1324 }
1325
1326 return false;
1327 }
1328
1329 void wxEvtHandler::Connect( int id, int lastId,
1330 int eventType,
1331 wxObjectEventFunction func,
1332 wxObject *userData,
1333 wxEvtHandler* eventSink )
1334 {
1335 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1336 wxEventTableEntry *entry = new wxEventTableEntry;
1337 entry->m_eventType = eventType;
1338 entry->m_id = id;
1339 entry->m_lastId = lastId;
1340 entry->m_fn = func;
1341 entry->m_callbackUserData = userData;
1342 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1343 wxDynamicEventTableEntry *entry =
1344 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1345 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1346
1347 if (!m_dynamicEvents)
1348 m_dynamicEvents = new wxList;
1349
1350 // Insert at the front of the list so most recent additions are found first
1351 m_dynamicEvents->Insert( (wxObject*) entry );
1352 }
1353
1354 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1355 wxObjectEventFunction func,
1356 wxObject *userData,
1357 wxEvtHandler* eventSink )
1358 {
1359 if (!m_dynamicEvents)
1360 return false;
1361
1362 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1363 while (node)
1364 {
1365 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1366 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1367 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1368 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1369 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1370
1371 if ((entry->m_id == id) &&
1372 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1373 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1374 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1375 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1376 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1377 {
1378 if (entry->m_callbackUserData)
1379 delete entry->m_callbackUserData;
1380 m_dynamicEvents->Erase( node );
1381 delete entry;
1382 return true;
1383 }
1384 node = node->GetNext();
1385 }
1386 return false;
1387 }
1388
1389 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1390 {
1391 wxCHECK_MSG( m_dynamicEvents, false,
1392 wxT("caller should check that we have dynamic events") );
1393
1394 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1395 while (node)
1396 {
1397 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1398 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1399 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1400 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1401 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1402
1403 // get next node before (maybe) calling the event handler as it could
1404 // call Disconnect() invalidating the current node
1405 node = node->GetNext();
1406
1407 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1408 {
1409 wxEvtHandler *handler =
1410 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1411 entry->m_eventSink ? entry->m_eventSink
1412 :
1413 #endif
1414 this;
1415
1416 if ( ProcessEventIfMatches(*entry, handler, event) )
1417 {
1418 return true;
1419 }
1420 }
1421 }
1422
1423 return false;
1424 }
1425
1426 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1427 {
1428 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1429 wxT("can't have both object and void client data") );
1430
1431 if ( m_clientObject )
1432 delete m_clientObject;
1433
1434 m_clientObject = data;
1435 m_clientDataType = wxClientData_Object;
1436 }
1437
1438 wxClientData *wxEvtHandler::DoGetClientObject() const
1439 {
1440 // it's not an error to call GetClientObject() on a window which doesn't
1441 // have client data at all - NULL will be returned
1442 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1443 wxT("this window doesn't have object client data") );
1444
1445 return m_clientObject;
1446 }
1447
1448 void wxEvtHandler::DoSetClientData( void *data )
1449 {
1450 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1451 wxT("can't have both object and void client data") );
1452
1453 m_clientData = data;
1454 m_clientDataType = wxClientData_Void;
1455 }
1456
1457 void *wxEvtHandler::DoGetClientData() const
1458 {
1459 // it's not an error to call GetClientData() on a window which doesn't have
1460 // client data at all - NULL will be returned
1461 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1462 wxT("this window doesn't have void client data") );
1463
1464 return m_clientData;
1465 }
1466
1467 #endif // wxUSE_BASE
1468
1469 #if wxUSE_GUI
1470
1471 // Find a window with the focus, that is also a descendant of the given window.
1472 // This is used to determine the window to initially send commands to.
1473 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1474 {
1475 // Process events starting with the window with the focus, if any.
1476 wxWindow* focusWin = wxWindow::FindFocus();
1477 wxWindow* win = focusWin;
1478
1479 // Check if this is a descendant of this frame.
1480 // If not, win will be set to NULL.
1481 while (win)
1482 {
1483 if (win == ancestor)
1484 break;
1485 else
1486 win = win->GetParent();
1487 }
1488 if (win == (wxWindow*) NULL)
1489 focusWin = (wxWindow*) NULL;
1490
1491 return focusWin;
1492 }
1493
1494 // ----------------------------------------------------------------------------
1495 // wxEventBlocker
1496 // ----------------------------------------------------------------------------
1497
1498 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1499 {
1500 wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1501
1502 m_window = win;
1503
1504 Block(type);
1505 m_window->PushEventHandler(this);
1506 }
1507
1508 wxEventBlocker::~wxEventBlocker()
1509 {
1510 wxEvtHandler *popped = m_window->PopEventHandler(false);
1511 wxCHECK_RET(popped == this,
1512 wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1513 }
1514
1515 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1516 {
1517 // should this event be blocked?
1518 for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1519 {
1520 wxEventType t = (wxEventType)m_eventsToBlock[i];
1521 if ( t == wxEVT_ANY || t == event.GetEventType() )
1522 return true; // yes, it should: mark this event as processed
1523 }
1524
1525 return false;
1526 }
1527
1528 #endif // wxUSE_GUI
wxWidgets (Impactor)