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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_ACTIVATE)
268 DEFINE_EVENT_TYPE(wxEVT_CREATE)
269 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
270 DEFINE_EVENT_TYPE(wxEVT_SHOW)
271 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
272 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
273 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
274 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
275 DEFINE_EVENT_TYPE(wxEVT_PAINT)
276 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
277 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
278 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
279 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
280 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
281 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
282 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
283 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
284 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
285 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
286 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
287 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
288 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
289 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
290 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
291 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
292 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
293 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
294 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
295 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
296 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
297 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
298
299 // Clipboard events
300 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
301 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
302 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
303
304 // Generic command events
305 // Note: a click is a higher-level event than button down/up
306 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
307 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
308 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
309 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
310 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
311 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
312 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
313
314 // Help events
315 DEFINE_EVENT_TYPE(wxEVT_HELP)
316 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
317
318 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
319
320 #endif // wxUSE_GUI
321
322 #if wxUSE_BASE
323
324 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
325
326 // ============================================================================
327 // implementation
328 // ============================================================================
329
330 // ----------------------------------------------------------------------------
331 // event initialization
332 // ----------------------------------------------------------------------------
333
334 int wxNewEventType()
335 {
336 // MT-FIXME
337 static int s_lastUsedEventType = wxEVT_FIRST;
338
339 return s_lastUsedEventType++;
340 }
341
342 // ----------------------------------------------------------------------------
343 // wxEvent
344 // ----------------------------------------------------------------------------
345
346 /*
347 * General wxWidgets events, covering
348 * all interesting things that might happen (button clicking, resizing,
349 * setting text in widgets, etc.).
350 *
351 * For each completely new event type, derive a new event class.
352 *
353 */
354
355 wxEvent::wxEvent(int theId, wxEventType commandType )
356 {
357 m_eventType = commandType;
358 m_eventObject = (wxObject *) NULL;
359 m_timeStamp = 0;
360 m_id = theId;
361 m_skipped = false;
362 m_callbackUserData = (wxObject *) NULL;
363 m_isCommandEvent = false;
364 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
365 }
366
367 wxEvent::wxEvent(const wxEvent &src)
368 : wxObject(src)
369 , m_eventObject(src.m_eventObject)
370 , m_eventType(src.m_eventType)
371 , m_timeStamp(src.m_timeStamp)
372 , m_id(src.m_id)
373 , m_callbackUserData(src.m_callbackUserData)
374 , m_propagationLevel(src.m_propagationLevel)
375 , m_skipped(src.m_skipped)
376 , m_isCommandEvent(src.m_isCommandEvent)
377 {
378 }
379
380 #endif // wxUSE_BASE
381
382 #if wxUSE_GUI
383
384 /*
385 * Command events
386 *
387 */
388
389 #ifdef __VISUALC__
390 // 'this' : used in base member initializer list (for m_commandString)
391 #pragma warning(disable:4355)
392 #endif
393
394 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
395 : wxEvent(theId, commandType)
396 {
397 m_clientData = (char *) NULL;
398 m_clientObject = (wxClientData *) NULL;
399 m_extraLong = 0;
400 m_commandInt = 0;
401 m_isCommandEvent = true;
402
403 // the command events are propagated upwards by default
404 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
405 }
406
407 #ifdef __VISUALC__
408 #pragma warning(default:4355)
409 #endif
410
411 wxString wxCommandEvent::GetString() const
412 {
413 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
414 return m_cmdString;
415 else
416 {
417 #if wxUSE_TEXTCTRL
418 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
419 if(txt)
420 return txt->GetValue();
421 else
422 #endif // wxUSE_TEXTCTRL
423 return m_cmdString;
424 }
425 }
426
427 /*
428 * UI update events
429 */
430
431 #if wxUSE_LONGLONG
432 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
433 #endif
434
435 long wxUpdateUIEvent::sm_updateInterval = 0;
436
437 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
438
439 // Can we update?
440 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
441 {
442 // Don't update if we've switched global updating off
443 // and this window doesn't support updates.
444 if (win &&
445 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
446 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
447 return false;
448
449 if (sm_updateInterval == -1)
450 return false;
451
452 if (sm_updateInterval == 0)
453 return true;
454
455 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
456 wxLongLong now = wxGetLocalTimeMillis();
457 if (now > (sm_lastUpdate + sm_updateInterval))
458 {
459 return true;
460 }
461
462 return false;
463 #else
464 // If we don't have wxStopWatch or wxLongLong, we
465 // should err on the safe side and update now anyway.
466 return true;
467 #endif
468 }
469
470 // Reset the update time to provide a delay until the next
471 // time we should update
472 void wxUpdateUIEvent::ResetUpdateTime()
473 {
474 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
475 if (sm_updateInterval > 0)
476 {
477 wxLongLong now = wxGetLocalTimeMillis();
478 if (now > (sm_lastUpdate + sm_updateInterval))
479 {
480 sm_lastUpdate = now;
481 }
482 }
483 #endif
484 }
485
486 /*
487 * Scroll events
488 */
489
490 wxScrollEvent::wxScrollEvent(wxEventType commandType,
491 int id,
492 int pos,
493 int orient)
494 : wxCommandEvent(commandType, id)
495 {
496 m_extraLong = orient;
497 m_commandInt = pos;
498 }
499
500 /*
501 * ScrollWin events
502 */
503
504 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
505 int pos,
506 int orient)
507 {
508 m_eventType = commandType;
509 m_extraLong = orient;
510 m_commandInt = pos;
511 }
512
513 /*
514 * Mouse events
515 *
516 */
517
518 wxMouseEvent::wxMouseEvent(wxEventType commandType)
519 {
520 m_eventType = commandType;
521
522 m_x = 0;
523 m_y = 0;
524
525 m_leftDown = false;
526 m_middleDown = false;
527 m_rightDown = false;
528 m_aux1Down = false;
529 m_aux2Down = false;
530
531 m_controlDown = false;
532 m_shiftDown = false;
533 m_altDown = false;
534 m_metaDown = false;
535
536 m_clickCount = -1;
537
538 m_wheelRotation = 0;
539 m_wheelDelta = 0;
540 m_linesPerAction = 0;
541 m_wheelAxis = 0;
542 }
543
544 void wxMouseEvent::Assign(const wxMouseEvent& event)
545 {
546 m_eventType = event.m_eventType;
547
548 m_x = event.m_x;
549 m_y = event.m_y;
550
551 m_leftDown = event.m_leftDown;
552 m_middleDown = event.m_middleDown;
553 m_rightDown = event.m_rightDown;
554 m_aux1Down = event.m_aux1Down;
555 m_aux2Down = event.m_aux2Down;
556
557 m_controlDown = event.m_controlDown;
558 m_shiftDown = event.m_shiftDown;
559 m_altDown = event.m_altDown;
560 m_metaDown = event.m_metaDown;
561
562 m_wheelRotation = event.m_wheelRotation;
563 m_wheelDelta = event.m_wheelDelta;
564 m_linesPerAction = event.m_linesPerAction;
565 m_wheelAxis = event.m_wheelAxis;
566 }
567
568 // return true if was a button dclick event
569 bool wxMouseEvent::ButtonDClick(int but) const
570 {
571 switch (but)
572 {
573 default:
574 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
575 // fall through
576
577 case wxMOUSE_BTN_ANY:
578 return (LeftDClick() || MiddleDClick() || RightDClick() ||
579 Aux1DClick() || Aux2DClick());
580
581 case wxMOUSE_BTN_LEFT:
582 return LeftDClick();
583
584 case wxMOUSE_BTN_MIDDLE:
585 return MiddleDClick();
586
587 case wxMOUSE_BTN_RIGHT:
588 return RightDClick();
589
590 case wxMOUSE_BTN_AUX1:
591 return Aux1DClick();
592
593 case wxMOUSE_BTN_AUX2:
594 return Aux2DClick();
595 }
596 }
597
598 // return true if was a button down event
599 bool wxMouseEvent::ButtonDown(int but) const
600 {
601 switch (but)
602 {
603 default:
604 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
605 // fall through
606
607 case wxMOUSE_BTN_ANY:
608 return (LeftDown() || MiddleDown() || RightDown() ||
609 Aux1Down() || Aux2Down());
610
611 case wxMOUSE_BTN_LEFT:
612 return LeftDown();
613
614 case wxMOUSE_BTN_MIDDLE:
615 return MiddleDown();
616
617 case wxMOUSE_BTN_RIGHT:
618 return RightDown();
619
620 case wxMOUSE_BTN_AUX1:
621 return Aux1Down();
622
623 case wxMOUSE_BTN_AUX2:
624 return Aux2Down();
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 Aux1Up() || Aux2Up());
640
641 case wxMOUSE_BTN_LEFT:
642 return LeftUp();
643
644 case wxMOUSE_BTN_MIDDLE:
645 return MiddleUp();
646
647 case wxMOUSE_BTN_RIGHT:
648 return RightUp();
649
650 case wxMOUSE_BTN_AUX1:
651 return Aux1Up();
652
653 case wxMOUSE_BTN_AUX2:
654 return Aux2Up();
655 }
656 }
657
658 // return true if the given button is currently changing state
659 bool wxMouseEvent::Button(int but) const
660 {
661 switch (but)
662 {
663 default:
664 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
665 // fall through
666
667 case wxMOUSE_BTN_ANY:
668 return ButtonUp(wxMOUSE_BTN_ANY) ||
669 ButtonDown(wxMOUSE_BTN_ANY) ||
670 ButtonDClick(wxMOUSE_BTN_ANY);
671
672 case wxMOUSE_BTN_LEFT:
673 return LeftDown() || LeftUp() || LeftDClick();
674
675 case wxMOUSE_BTN_MIDDLE:
676 return MiddleDown() || MiddleUp() || MiddleDClick();
677
678 case wxMOUSE_BTN_RIGHT:
679 return RightDown() || RightUp() || RightDClick();
680
681 case wxMOUSE_BTN_AUX1:
682 return Aux1Down() || Aux1Up() || Aux1DClick();
683
684 case wxMOUSE_BTN_AUX2:
685 return Aux2Down() || Aux2Up() || Aux2DClick();
686 }
687 }
688
689 bool wxMouseEvent::ButtonIsDown(int but) const
690 {
691 switch (but)
692 {
693 default:
694 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
695 // fall through
696
697 case wxMOUSE_BTN_ANY:
698 return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
699
700 case wxMOUSE_BTN_LEFT:
701 return LeftIsDown();
702
703 case wxMOUSE_BTN_MIDDLE:
704 return MiddleIsDown();
705
706 case wxMOUSE_BTN_RIGHT:
707 return RightIsDown();
708
709 case wxMOUSE_BTN_AUX1:
710 return Aux1IsDown();
711
712 case wxMOUSE_BTN_AUX2:
713 return Aux2IsDown();
714 }
715 }
716
717 int wxMouseEvent::GetButton() const
718 {
719 for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
720 {
721 if ( Button(i) )
722 {
723 return i;
724 }
725 }
726
727 return wxMOUSE_BTN_NONE;
728 }
729
730 // Find the logical position of the event given the DC
731 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
732 {
733 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
734 return pt;
735 }
736
737
738 /*
739 * Keyboard event
740 *
741 */
742
743 wxKeyEvent::wxKeyEvent(wxEventType type)
744 {
745 m_eventType = type;
746 m_shiftDown = false;
747 m_controlDown = false;
748 m_metaDown = false;
749 m_altDown = false;
750 m_keyCode = 0;
751 m_scanCode = 0;
752 #if wxUSE_UNICODE
753 m_uniChar = 0;
754 #endif
755 }
756
757 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
758 : wxEvent(evt)
759 {
760 m_x = evt.m_x;
761 m_y = evt.m_y;
762
763 m_keyCode = evt.m_keyCode;
764
765 m_controlDown = evt.m_controlDown;
766 m_shiftDown = evt.m_shiftDown;
767 m_altDown = evt.m_altDown;
768 m_metaDown = evt.m_metaDown;
769 m_scanCode = evt.m_scanCode;
770 m_rawCode = evt.m_rawCode;
771 m_rawFlags = evt.m_rawFlags;
772
773 #if wxUSE_UNICODE
774 m_uniChar = evt.m_uniChar;
775 #endif
776 }
777
778 #if WXWIN_COMPATIBILITY_2_6
779 long wxKeyEvent::KeyCode() const
780 {
781 return m_keyCode;
782 }
783 #endif // WXWIN_COMPATIBILITY_2_6
784
785 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
786 {
787 SetEventType(wxEVT_CREATE);
788 SetEventObject(win);
789 }
790
791 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
792 {
793 SetEventType(wxEVT_DESTROY);
794 SetEventObject(win);
795 }
796
797 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
798 : wxCommandEvent(wxEVT_CHILD_FOCUS)
799 {
800 SetEventObject(win);
801 }
802
803 // ----------------------------------------------------------------------------
804 // wxHelpEvent
805 // ----------------------------------------------------------------------------
806
807 /* static */
808 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
809 {
810 if ( origin == Origin_Unknown )
811 {
812 // assume that the event comes from the help button if it's not from
813 // keyboard and that pressing F1 always results in the help event
814 origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
815 }
816
817 return origin;
818 }
819
820 #endif // wxUSE_GUI
821
822
823 #if wxUSE_BASE
824
825 // ----------------------------------------------------------------------------
826 // wxEventHashTable
827 // ----------------------------------------------------------------------------
828
829 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
830
831 wxEventHashTable* wxEventHashTable::sm_first = NULL;
832
833 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
834 : m_table(table),
835 m_rebuildHash(true)
836 {
837 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
838
839 m_next = sm_first;
840 if (m_next)
841 m_next->m_previous = this;
842 sm_first = this;
843 }
844
845 wxEventHashTable::~wxEventHashTable()
846 {
847 if (m_next)
848 m_next->m_previous = m_previous;
849 if (m_previous)
850 m_previous->m_next = m_next;
851 if (sm_first == this)
852 sm_first = m_next;
853
854 Clear();
855 }
856
857 void wxEventHashTable::Clear()
858 {
859 for ( size_t i = 0; i < m_size; i++ )
860 {
861 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
862 delete eTTnode;
863 }
864
865 delete[] m_eventTypeTable;
866 m_eventTypeTable = NULL;
867
868 m_size = 0;
869 }
870
871 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
872
873 // Clear all tables
874 void wxEventHashTable::ClearAll()
875 {
876 wxEventHashTable* table = sm_first;
877 while (table)
878 {
879 table->Clear();
880 table = table->m_next;
881 }
882 }
883
884 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
885
886 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
887 {
888 if (m_rebuildHash)
889 {
890 InitHashTable();
891 m_rebuildHash = false;
892 }
893
894 if (!m_eventTypeTable)
895 return false;
896
897 // Find all entries for the given event type.
898 wxEventType eventType = event.GetEventType();
899 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
900 if (eTTnode && eTTnode->eventType == eventType)
901 {
902 // Now start the search for an event handler
903 // that can handle an event with the given ID.
904 const wxEventTableEntryPointerArray&
905 eventEntryTable = eTTnode->eventEntryTable;
906
907 const size_t count = eventEntryTable.GetCount();
908 for (size_t n = 0; n < count; n++)
909 {
910 if ( wxEvtHandler::
911 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
912 {
913 return true;
914 }
915 }
916 }
917
918 return false;
919 }
920
921 void wxEventHashTable::InitHashTable()
922 {
923 // Loop over the event tables and all its base tables.
924 const wxEventTable *table = &m_table;
925 while (table)
926 {
927 // Retrieve all valid event handler entries
928 const wxEventTableEntry *entry = table->entries;
929 while (entry->m_fn != 0)
930 {
931 // Add the event entry in the Hash.
932 AddEntry(*entry);
933
934 entry++;
935 }
936
937 table = table->baseTable;
938 }
939
940 // Lets free some memory.
941 size_t i;
942 for(i = 0; i < m_size; i++)
943 {
944 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
945 if (eTTnode)
946 {
947 eTTnode->eventEntryTable.Shrink();
948 }
949 }
950 }
951
952 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
953 {
954 // This might happen 'accidentally' as the app is exiting
955 if (!m_eventTypeTable)
956 return;
957
958 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
959 EventTypeTablePointer eTTnode = *peTTnode;
960
961 if (eTTnode)
962 {
963 if (eTTnode->eventType != entry.m_eventType)
964 {
965 // Resize the table!
966 GrowEventTypeTable();
967 // Try again to add it.
968 AddEntry(entry);
969 return;
970 }
971 }
972 else
973 {
974 eTTnode = new EventTypeTable;
975 eTTnode->eventType = entry.m_eventType;
976 *peTTnode = eTTnode;
977 }
978
979 // Fill all hash entries between entry.m_id and entry.m_lastId...
980 eTTnode->eventEntryTable.Add(&entry);
981 }
982
983 void wxEventHashTable::AllocEventTypeTable(size_t size)
984 {
985 m_eventTypeTable = new EventTypeTablePointer[size];
986 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
987 m_size = size;
988 }
989
990 void wxEventHashTable::GrowEventTypeTable()
991 {
992 size_t oldSize = m_size;
993 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
994
995 // TODO: Search the most optimal grow sequence
996 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
997
998 for ( size_t i = 0; i < oldSize; /* */ )
999 {
1000 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
1001 if (eTToldNode)
1002 {
1003 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
1004 EventTypeTablePointer eTTnode = *peTTnode;
1005
1006 // Check for collision, we don't want any.
1007 if (eTTnode)
1008 {
1009 GrowEventTypeTable();
1010 continue; // Don't increment the counter,
1011 // as we still need to add this element.
1012 }
1013 else
1014 {
1015 // Get the old value and put it in the new table.
1016 *peTTnode = oldEventTypeTable[i];
1017 }
1018 }
1019
1020 i++;
1021 }
1022
1023 delete[] oldEventTypeTable;
1024 }
1025
1026
1027 // ----------------------------------------------------------------------------
1028 // wxEvtHandler
1029 // ----------------------------------------------------------------------------
1030
1031 /*
1032 * Event handler
1033 */
1034
1035 wxEvtHandler::wxEvtHandler()
1036 {
1037 m_nextHandler = (wxEvtHandler *) NULL;
1038 m_previousHandler = (wxEvtHandler *) NULL;
1039 m_enabled = true;
1040 m_dynamicEvents = (wxList *) NULL;
1041 m_pendingEvents = (wxList *) NULL;
1042 #if wxUSE_THREADS
1043 # if !defined(__VISAGECPP__)
1044 m_eventsLocker = new wxCriticalSection;
1045 # endif
1046 #endif
1047
1048 // no client data (yet)
1049 m_clientData = NULL;
1050 m_clientDataType = wxClientData_None;
1051 }
1052
1053 wxEvtHandler::~wxEvtHandler()
1054 {
1055 // Takes itself out of the list of handlers
1056 if (m_previousHandler)
1057 m_previousHandler->m_nextHandler = m_nextHandler;
1058
1059 if (m_nextHandler)
1060 m_nextHandler->m_previousHandler = m_previousHandler;
1061
1062 if (m_dynamicEvents)
1063 {
1064 for ( wxList::iterator it = m_dynamicEvents->begin(),
1065 end = m_dynamicEvents->end();
1066 it != end;
1067 ++it )
1068 {
1069 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1070 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1071 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1072 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1073 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1074
1075 if (entry->m_callbackUserData)
1076 delete entry->m_callbackUserData;
1077 delete entry;
1078 }
1079 delete m_dynamicEvents;
1080 };
1081
1082 if (m_pendingEvents)
1083 m_pendingEvents->DeleteContents(true);
1084 delete m_pendingEvents;
1085
1086 #if wxUSE_THREADS
1087 # if !defined(__VISAGECPP__)
1088 delete m_eventsLocker;
1089 # endif
1090
1091 // Remove us from wxPendingEvents if necessary.
1092 if(wxPendingEventsLocker)
1093 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1094 if ( wxPendingEvents )
1095 {
1096 // Delete all occurences of this from the list of pending events
1097 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1098 }
1099 if(wxPendingEventsLocker)
1100 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1101 #endif
1102
1103 // we only delete object data, not untyped
1104 if ( m_clientDataType == wxClientData_Object )
1105 delete m_clientObject;
1106 }
1107
1108 #if wxUSE_THREADS
1109
1110 bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1111 {
1112 // check that we are really in a child thread
1113 wxASSERT_MSG( !wxThread::IsMain(),
1114 wxT("use ProcessEvent() in main thread") );
1115
1116 AddPendingEvent(event);
1117
1118 return true;
1119 }
1120
1121 void wxEvtHandler::ClearEventLocker()
1122 {
1123 #if !defined(__VISAGECPP__)
1124 delete m_eventsLocker;
1125 m_eventsLocker = NULL;
1126 #endif
1127 }
1128
1129 #endif // wxUSE_THREADS
1130
1131 void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1132 {
1133 // 1) Add event to list of pending events of this event handler
1134
1135 wxEvent *eventCopy = event.Clone();
1136
1137 // we must be able to copy the events here so the event class must
1138 // implement Clone() properly instead of just providing a NULL stab for it
1139 wxCHECK_RET( eventCopy,
1140 _T("events of this type aren't supposed to be posted") );
1141
1142 wxENTER_CRIT_SECT( Lock() );
1143
1144 if ( !m_pendingEvents )
1145 m_pendingEvents = new wxList;
1146
1147 m_pendingEvents->Append(eventCopy);
1148
1149 wxLEAVE_CRIT_SECT( Lock() );
1150
1151 // 2) Add this event handler to list of event handlers that
1152 // have pending events.
1153
1154 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1155
1156 if ( !wxPendingEvents )
1157 wxPendingEvents = new wxList;
1158 wxPendingEvents->Append(this);
1159
1160 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1161
1162 // 3) Inform the system that new pending events are somewhere,
1163 // and that these should be processed in idle time.
1164 wxWakeUpIdle();
1165 }
1166
1167 void wxEvtHandler::ProcessPendingEvents()
1168 {
1169 // this method is only called by wxApp if this handler does have
1170 // pending events
1171 wxCHECK_RET( m_pendingEvents,
1172 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1173
1174 wxENTER_CRIT_SECT( Lock() );
1175
1176 // we leave the loop once we have processed all events that were present at
1177 // the start of ProcessPendingEvents because otherwise we could get into
1178 // infinite loop if the pending event handler execution resulted in another
1179 // event being posted
1180 size_t n = m_pendingEvents->size();
1181 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1182 node;
1183 node = m_pendingEvents->GetFirst() )
1184 {
1185 wxEvent *event = (wxEvent *)node->GetData();
1186
1187 // It's importan we remove event from list before processing it.
1188 // Else a nested event loop, for example from a modal dialog, might
1189 // process the same event again.
1190
1191 m_pendingEvents->Erase(node);
1192
1193 wxLEAVE_CRIT_SECT( Lock() );
1194
1195 ProcessEvent(*event);
1196
1197 delete event;
1198
1199 wxENTER_CRIT_SECT( Lock() );
1200
1201 if ( --n == 0 )
1202 break;
1203 }
1204
1205 wxLEAVE_CRIT_SECT( Lock() );
1206 }
1207
1208 /*
1209 * Event table stuff
1210 */
1211 /* static */ bool
1212 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1213 wxEvtHandler *handler,
1214 wxEvent& event)
1215 {
1216 int tableId1 = entry.m_id,
1217 tableId2 = entry.m_lastId;
1218
1219 // match only if the event type is the same and the id is either -1 in
1220 // the event table (meaning "any") or the event id matches the id
1221 // specified in the event table either exactly or by falling into
1222 // range between first and last
1223 if ((tableId1 == wxID_ANY) ||
1224 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1225 (tableId2 != wxID_ANY &&
1226 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1227 {
1228 event.Skip(false);
1229 event.m_callbackUserData = entry.m_callbackUserData;
1230
1231 #if wxUSE_EXCEPTIONS
1232 if ( wxTheApp )
1233 {
1234 // call the handler via wxApp method which allows the user to catch
1235 // any exceptions which may be thrown by any handler in the program
1236 // in one place
1237 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1238 }
1239 else
1240 #endif // wxUSE_EXCEPTIONS
1241 {
1242 // no need for an extra virtual function call
1243 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1244 }
1245
1246 if (!event.GetSkipped())
1247 return true;
1248 }
1249
1250 return false;
1251 }
1252
1253 bool wxEvtHandler::TryParent(wxEvent& event)
1254 {
1255 if ( wxTheApp && (this != wxTheApp) )
1256 {
1257 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1258 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1259 // processed appropriately via SearchEventTable.
1260 if ( event.GetEventType() != wxEVT_IDLE )
1261 {
1262 if ( wxTheApp->ProcessEvent(event) )
1263 return true;
1264 }
1265 }
1266
1267 return false;
1268 }
1269
1270 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1271 {
1272 // allow the application to hook into event processing
1273 if ( wxTheApp )
1274 {
1275 int rc = wxTheApp->FilterEvent(event);
1276 if ( rc != -1 )
1277 {
1278 wxASSERT_MSG( rc == 1 || rc == 0,
1279 _T("unexpected wxApp::FilterEvent return value") );
1280
1281 return rc != 0;
1282 }
1283 //else: proceed normally
1284 }
1285
1286 // An event handler can be enabled or disabled
1287 if ( GetEvtHandlerEnabled() )
1288 {
1289 // if we have a validator, it has higher priority than our own event
1290 // table
1291 if ( TryValidator(event) )
1292 return true;
1293
1294 // Handle per-instance dynamic event tables first
1295 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1296 return true;
1297
1298 // Then static per-class event tables
1299 if ( GetEventHashTable().HandleEvent(event, this) )
1300 return true;
1301 }
1302
1303 // Try going down the event handler chain
1304 if ( GetNextHandler() )
1305 {
1306 // notice that we shouldn't let the parent have the event even if the
1307 // next handler does not process it because it will have already passed
1308 // it to the parent in this case
1309 return GetNextHandler()->ProcessEvent(event);
1310 }
1311
1312 // Finally propagate the event upwards the window chain and/or to the
1313 // application object as necessary
1314 return TryParent(event);
1315 }
1316
1317
1318 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1319 {
1320 const wxEventType eventType = event.GetEventType();
1321 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1322 {
1323 const wxEventTableEntry& entry = table.entries[i];
1324 if ( eventType == entry.m_eventType )
1325 {
1326 if ( ProcessEventIfMatches(entry, this, event) )
1327 return true;
1328 }
1329 }
1330
1331 return false;
1332 }
1333
1334 void wxEvtHandler::Connect( int id, int lastId,
1335 int eventType,
1336 wxObjectEventFunction func,
1337 wxObject *userData,
1338 wxEvtHandler* eventSink )
1339 {
1340 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1341 wxEventTableEntry *entry = new wxEventTableEntry;
1342 entry->m_eventType = eventType;
1343 entry->m_id = id;
1344 entry->m_lastId = lastId;
1345 entry->m_fn = func;
1346 entry->m_callbackUserData = userData;
1347 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1348 wxDynamicEventTableEntry *entry =
1349 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1350 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1351
1352 if (!m_dynamicEvents)
1353 m_dynamicEvents = new wxList;
1354
1355 // Insert at the front of the list so most recent additions are found first
1356 m_dynamicEvents->Insert( (wxObject*) entry );
1357 }
1358
1359 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1360 wxObjectEventFunction func,
1361 wxObject *userData,
1362 wxEvtHandler* eventSink )
1363 {
1364 if (!m_dynamicEvents)
1365 return false;
1366
1367 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1368 while (node)
1369 {
1370 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1371 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1372 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1373 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1374 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1375
1376 if ((entry->m_id == id) &&
1377 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1378 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1379 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1380 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1381 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1382 {
1383 if (entry->m_callbackUserData)
1384 delete entry->m_callbackUserData;
1385 m_dynamicEvents->Erase( node );
1386 delete entry;
1387 return true;
1388 }
1389 node = node->GetNext();
1390 }
1391 return false;
1392 }
1393
1394 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1395 {
1396 wxCHECK_MSG( m_dynamicEvents, false,
1397 wxT("caller should check that we have dynamic events") );
1398
1399 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1400 while (node)
1401 {
1402 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1403 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1404 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1405 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1406 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1407
1408 // get next node before (maybe) calling the event handler as it could
1409 // call Disconnect() invalidating the current node
1410 node = node->GetNext();
1411
1412 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1413 {
1414 wxEvtHandler *handler =
1415 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1416 entry->m_eventSink ? entry->m_eventSink
1417 :
1418 #endif
1419 this;
1420
1421 if ( ProcessEventIfMatches(*entry, handler, event) )
1422 {
1423 return true;
1424 }
1425 }
1426 }
1427
1428 return false;
1429 }
1430
1431 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1432 {
1433 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1434 wxT("can't have both object and void client data") );
1435
1436 if ( m_clientObject )
1437 delete m_clientObject;
1438
1439 m_clientObject = data;
1440 m_clientDataType = wxClientData_Object;
1441 }
1442
1443 wxClientData *wxEvtHandler::DoGetClientObject() const
1444 {
1445 // it's not an error to call GetClientObject() on a window which doesn't
1446 // have client data at all - NULL will be returned
1447 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1448 wxT("this window doesn't have object client data") );
1449
1450 return m_clientObject;
1451 }
1452
1453 void wxEvtHandler::DoSetClientData( void *data )
1454 {
1455 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1456 wxT("can't have both object and void client data") );
1457
1458 m_clientData = data;
1459 m_clientDataType = wxClientData_Void;
1460 }
1461
1462 void *wxEvtHandler::DoGetClientData() const
1463 {
1464 // it's not an error to call GetClientData() on a window which doesn't have
1465 // client data at all - NULL will be returned
1466 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1467 wxT("this window doesn't have void client data") );
1468
1469 return m_clientData;
1470 }
1471
1472 #endif // wxUSE_BASE
1473
1474 #if wxUSE_GUI
1475
1476 // Find a window with the focus, that is also a descendant of the given window.
1477 // This is used to determine the window to initially send commands to.
1478 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1479 {
1480 // Process events starting with the window with the focus, if any.
1481 wxWindow* focusWin = wxWindow::FindFocus();
1482 wxWindow* win = focusWin;
1483
1484 // Check if this is a descendant of this frame.
1485 // If not, win will be set to NULL.
1486 while (win)
1487 {
1488 if (win == ancestor)
1489 break;
1490 else
1491 win = win->GetParent();
1492 }
1493 if (win == (wxWindow*) NULL)
1494 focusWin = (wxWindow*) NULL;
1495
1496 return focusWin;
1497 }
1498
1499 // ----------------------------------------------------------------------------
1500 // wxEventBlocker
1501 // ----------------------------------------------------------------------------
1502
1503 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1504 {
1505 wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1506
1507 m_window = win;
1508
1509 Block(type);
1510 m_window->PushEventHandler(this);
1511 }
1512
1513 wxEventBlocker::~wxEventBlocker()
1514 {
1515 wxEvtHandler *popped = m_window->PopEventHandler(false);
1516 wxCHECK_RET(popped == this,
1517 wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1518 }
1519
1520 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1521 {
1522 // should this event be blocked?
1523 for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1524 {
1525 wxEventType t = (wxEventType)m_eventsToBlock[i];
1526 if ( t == wxEVT_ANY || t == event.GetEventType() )
1527 return true; // yes, it should: mark this event as processed
1528 }
1529
1530 return false;
1531 }
1532
1533 #endif // wxUSE_GUI
wxWidgets (Impactor)