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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
96const wxEventTable *wxEvtHandler::GetEventTable() const
97 { return &wxEvtHandler::sm_eventTable; }
98
99const wxEventTable wxEvtHandler::sm_eventTable =
100 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
101
102wxEventHashTable &wxEvtHandler::GetEventHashTable() const
103 { return wxEvtHandler::sm_eventHashTable; }
104
105wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
106
107const 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
118class wxEventTableEntryModule: public wxModule
119{
120public:
121 wxEventTableEntryModule() { }
122 virtual bool OnInit() { return true; }
123 virtual void OnExit() { wxEventHashTable::ClearAll(); }
124
125 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
126};
127
128IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
129
130#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
131
132// ----------------------------------------------------------------------------
133// global variables
134// ----------------------------------------------------------------------------
135
136// To put pending event handlers
137wxList *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
149const wxEventType wxEVT_FIRST = 10000;
150const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
151
152DEFINE_EVENT_TYPE(wxEVT_NULL)
153DEFINE_EVENT_TYPE(wxEVT_IDLE)
154DEFINE_EVENT_TYPE(wxEVT_SOCKET)
155DEFINE_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
165DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
166DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
167DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
168DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
169DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
170DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
171DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
172DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
173DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
174DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
175DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
176DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
177DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
178DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
179DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
180DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
181DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
182
183// Mouse event types
184DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
185DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
186DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
187DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
188DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
189DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
190DEFINE_EVENT_TYPE(wxEVT_MOTION)
191DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
192DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
193DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
194DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
195DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
196DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
197DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
198DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
199DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
200DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
201DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
202DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
203DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
204DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
205DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
206
207// Non-client mouse events
208DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
209DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
210DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
211DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
212DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
213DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
214DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
215DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
216DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
217DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
218DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
219DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
220
221// Character input event type
222DEFINE_EVENT_TYPE(wxEVT_CHAR)
223DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
224DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
225DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
226DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
227#if wxUSE_HOTKEY
228DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
229#endif
230
231// Set cursor event
232DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
233
234// wxScrollbar and wxSlider event identifiers
235DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
236DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
237DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
238DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
239DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
240DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
241DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
242DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
243DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
244
245// Scroll events from wxWindow
246DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
247DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
248DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
249DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
250DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
251DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
252DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
253DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
254
255// System events
256DEFINE_EVENT_TYPE(wxEVT_SIZE)
257DEFINE_EVENT_TYPE(wxEVT_SIZING)
258DEFINE_EVENT_TYPE(wxEVT_MOVE)
259DEFINE_EVENT_TYPE(wxEVT_MOVING)
260DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
261DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
262DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
263DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
264DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
265DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
266DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
267DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
268DEFINE_EVENT_TYPE(wxEVT_CREATE)
269DEFINE_EVENT_TYPE(wxEVT_DESTROY)
270DEFINE_EVENT_TYPE(wxEVT_SHOW)
271DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
272DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
273DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
274DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
275DEFINE_EVENT_TYPE(wxEVT_PAINT)
276DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
277DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
278DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
279DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
280DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
281DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
282DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
283DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
284DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
285DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
286DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
287DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
288DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
289DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
290DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
291DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
292DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
293DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
294DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
295DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
296DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
297DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
298
299// Clipboard events
300DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
301DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
302DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
303
304// Generic command events
305// Note: a click is a higher-level event than button down/up
306DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
307DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
308DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
309DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
310DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
311DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
312DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
313
314// Help events
315DEFINE_EVENT_TYPE(wxEVT_HELP)
316DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
317
318#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
319
320#endif // wxUSE_GUI
321
322#if wxUSE_BASE
323
324wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
325
326// ============================================================================
327// implementation
328// ============================================================================
329
330// ----------------------------------------------------------------------------
331// event initialization
332// ----------------------------------------------------------------------------
333
334int 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
355wxEvent::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
367wxEvent::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
394wxCommandEvent::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
411wxString 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
432wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
433#endif
434
435long wxUpdateUIEvent::sm_updateInterval = 0;
436
437wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
438
439// Can we update?
440bool 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
472void 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
490wxScrollEvent::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
504wxScrollWinEvent::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
518wxMouseEvent::wxMouseEvent(wxEventType commandType)
519{
520 m_eventType = commandType;
521 m_metaDown = false;
522 m_altDown = false;
523 m_controlDown = false;
524 m_shiftDown = false;
525 m_leftDown = false;
526 m_rightDown = false;
527 m_middleDown = false;
528 m_aux1Down = false;
529 m_aux2Down = false;
530 m_x = 0;
531 m_y = 0;
532 m_wheelRotation = 0;
533 m_wheelDelta = 0;
534 m_linesPerAction = 0;
535 m_wheelAxis = 0;
536}
537
538void wxMouseEvent::Assign(const wxMouseEvent& event)
539{
540 m_eventType = event.m_eventType;
541
542 m_x = event.m_x;
543 m_y = event.m_y;
544
545 m_leftDown = event.m_leftDown;
546 m_middleDown = event.m_middleDown;
547 m_rightDown = event.m_rightDown;
548 m_aux1Down = event.m_aux1Down;
549 m_aux2Down = event.m_aux2Down;
550
551 m_controlDown = event.m_controlDown;
552 m_shiftDown = event.m_shiftDown;
553 m_altDown = event.m_altDown;
554 m_metaDown = event.m_metaDown;
555
556 m_wheelRotation = event.m_wheelRotation;
557 m_wheelDelta = event.m_wheelDelta;
558 m_linesPerAction = event.m_linesPerAction;
559 m_wheelAxis = event.m_wheelAxis;
560}
561
562// return true if was a button dclick event
563bool wxMouseEvent::ButtonDClick(int but) const
564{
565 switch (but)
566 {
567 default:
568 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
569 // fall through
570
571 case wxMOUSE_BTN_ANY:
572 return (LeftDClick() || MiddleDClick() || RightDClick() ||
573 Aux1DClick() || Aux2DClick());
574
575 case wxMOUSE_BTN_LEFT:
576 return LeftDClick();
577
578 case wxMOUSE_BTN_MIDDLE:
579 return MiddleDClick();
580
581 case wxMOUSE_BTN_RIGHT:
582 return RightDClick();
583
584 case wxMOUSE_BTN_AUX1:
585 return Aux1DClick();
586
587 case wxMOUSE_BTN_AUX2:
588 return Aux2DClick();
589 }
590}
591
592// return true if was a button down event
593bool wxMouseEvent::ButtonDown(int but) const
594{
595 switch (but)
596 {
597 default:
598 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
599 // fall through
600
601 case wxMOUSE_BTN_ANY:
602 return (LeftDown() || MiddleDown() || RightDown() ||
603 Aux1Down() || Aux2Down());
604
605 case wxMOUSE_BTN_LEFT:
606 return LeftDown();
607
608 case wxMOUSE_BTN_MIDDLE:
609 return MiddleDown();
610
611 case wxMOUSE_BTN_RIGHT:
612 return RightDown();
613
614 case wxMOUSE_BTN_AUX1:
615 return Aux1Down();
616
617 case wxMOUSE_BTN_AUX2:
618 return Aux2Down();
619 }
620}
621
622// return true if was a button up event
623bool wxMouseEvent::ButtonUp(int but) const
624{
625 switch (but)
626 {
627 default:
628 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
629 // fall through
630
631 case wxMOUSE_BTN_ANY:
632 return (LeftUp() || MiddleUp() || RightUp() ||
633 Aux1Up() || Aux2Up());
634
635 case wxMOUSE_BTN_LEFT:
636 return LeftUp();
637
638 case wxMOUSE_BTN_MIDDLE:
639 return MiddleUp();
640
641 case wxMOUSE_BTN_RIGHT:
642 return RightUp();
643
644 case wxMOUSE_BTN_AUX1:
645 return Aux1Up();
646
647 case wxMOUSE_BTN_AUX2:
648 return Aux2Up();
649 }
650}
651
652// return true if the given button is currently changing state
653bool wxMouseEvent::Button(int but) const
654{
655 switch (but)
656 {
657 default:
658 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
659 // fall through
660
661 case wxMOUSE_BTN_ANY:
662 return ButtonUp(wxMOUSE_BTN_ANY) ||
663 ButtonDown(wxMOUSE_BTN_ANY) ||
664 ButtonDClick(wxMOUSE_BTN_ANY);
665
666 case wxMOUSE_BTN_LEFT:
667 return LeftDown() || LeftUp() || LeftDClick();
668
669 case wxMOUSE_BTN_MIDDLE:
670 return MiddleDown() || MiddleUp() || MiddleDClick();
671
672 case wxMOUSE_BTN_RIGHT:
673 return RightDown() || RightUp() || RightDClick();
674
675 case wxMOUSE_BTN_AUX1:
676 return Aux1Down() || Aux1Up() || Aux1DClick();
677
678 case wxMOUSE_BTN_AUX2:
679 return Aux2Down() || Aux2Up() || Aux2DClick();
680 }
681}
682
683bool wxMouseEvent::ButtonIsDown(int but) const
684{
685 switch (but)
686 {
687 default:
688 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
689 // fall through
690
691 case wxMOUSE_BTN_ANY:
692 return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
693
694 case wxMOUSE_BTN_LEFT:
695 return LeftIsDown();
696
697 case wxMOUSE_BTN_MIDDLE:
698 return MiddleIsDown();
699
700 case wxMOUSE_BTN_RIGHT:
701 return RightIsDown();
702
703 case wxMOUSE_BTN_AUX1:
704 return Aux1IsDown();
705
706 case wxMOUSE_BTN_AUX2:
707 return Aux2IsDown();
708 }
709}
710
711int wxMouseEvent::GetButton() const
712{
713 for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
714 {
715 if ( Button(i) )
716 {
717 return i;
718 }
719 }
720
721 return wxMOUSE_BTN_NONE;
722}
723
724// Find the logical position of the event given the DC
725wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
726{
727 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
728 return pt;
729}
730
731
732/*
733 * Keyboard event
734 *
735 */
736
737wxKeyEvent::wxKeyEvent(wxEventType type)
738{
739 m_eventType = type;
740 m_shiftDown = false;
741 m_controlDown = false;
742 m_metaDown = false;
743 m_altDown = false;
744 m_keyCode = 0;
745 m_scanCode = 0;
746#if wxUSE_UNICODE
747 m_uniChar = 0;
748#endif
749}
750
751wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
752 : wxEvent(evt)
753{
754 m_x = evt.m_x;
755 m_y = evt.m_y;
756
757 m_keyCode = evt.m_keyCode;
758
759 m_controlDown = evt.m_controlDown;
760 m_shiftDown = evt.m_shiftDown;
761 m_altDown = evt.m_altDown;
762 m_metaDown = evt.m_metaDown;
763 m_scanCode = evt.m_scanCode;
764 m_rawCode = evt.m_rawCode;
765 m_rawFlags = evt.m_rawFlags;
766
767#if wxUSE_UNICODE
768 m_uniChar = evt.m_uniChar;
769#endif
770}
771
772#if WXWIN_COMPATIBILITY_2_6
773long wxKeyEvent::KeyCode() const
774{
775 return m_keyCode;
776}
777#endif // WXWIN_COMPATIBILITY_2_6
778
779wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
780{
781 SetEventType(wxEVT_CREATE);
782 SetEventObject(win);
783}
784
785wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
786{
787 SetEventType(wxEVT_DESTROY);
788 SetEventObject(win);
789}
790
791wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
792 : wxCommandEvent(wxEVT_CHILD_FOCUS)
793{
794 SetEventObject(win);
795}
796
797// ----------------------------------------------------------------------------
798// wxHelpEvent
799// ----------------------------------------------------------------------------
800
801/* static */
802wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
803{
804 if ( origin == Origin_Unknown )
805 {
806 // assume that the event comes from the help button if it's not from
807 // keyboard and that pressing F1 always results in the help event
808 origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
809 }
810
811 return origin;
812}
813
814#endif // wxUSE_GUI
815
816
817#if wxUSE_BASE
818
819// ----------------------------------------------------------------------------
820// wxEventHashTable
821// ----------------------------------------------------------------------------
822
823static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
824
825wxEventHashTable* wxEventHashTable::sm_first = NULL;
826
827wxEventHashTable::wxEventHashTable(const wxEventTable &table)
828 : m_table(table),
829 m_rebuildHash(true)
830{
831 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
832
833 m_next = sm_first;
834 if (m_next)
835 m_next->m_previous = this;
836 sm_first = this;
837}
838
839wxEventHashTable::~wxEventHashTable()
840{
841 if (m_next)
842 m_next->m_previous = m_previous;
843 if (m_previous)
844 m_previous->m_next = m_next;
845 if (sm_first == this)
846 sm_first = m_next;
847
848 Clear();
849}
850
851void wxEventHashTable::Clear()
852{
853 for ( size_t i = 0; i < m_size; i++ )
854 {
855 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
856 delete eTTnode;
857 }
858
859 delete[] m_eventTypeTable;
860 m_eventTypeTable = NULL;
861
862 m_size = 0;
863}
864
865#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
866
867// Clear all tables
868void wxEventHashTable::ClearAll()
869{
870 wxEventHashTable* table = sm_first;
871 while (table)
872 {
873 table->Clear();
874 table = table->m_next;
875 }
876}
877
878#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
879
880bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
881{
882 if (m_rebuildHash)
883 {
884 InitHashTable();
885 m_rebuildHash = false;
886 }
887
888 if (!m_eventTypeTable)
889 return false;
890
891 // Find all entries for the given event type.
892 wxEventType eventType = event.GetEventType();
893 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
894 if (eTTnode && eTTnode->eventType == eventType)
895 {
896 // Now start the search for an event handler
897 // that can handle an event with the given ID.
898 const wxEventTableEntryPointerArray&
899 eventEntryTable = eTTnode->eventEntryTable;
900
901 const size_t count = eventEntryTable.GetCount();
902 for (size_t n = 0; n < count; n++)
903 {
904 if ( wxEvtHandler::
905 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
906 {
907 return true;
908 }
909 }
910 }
911
912 return false;
913}
914
915void wxEventHashTable::InitHashTable()
916{
917 // Loop over the event tables and all its base tables.
918 const wxEventTable *table = &m_table;
919 while (table)
920 {
921 // Retrieve all valid event handler entries
922 const wxEventTableEntry *entry = table->entries;
923 while (entry->m_fn != 0)
924 {
925 // Add the event entry in the Hash.
926 AddEntry(*entry);
927
928 entry++;
929 }
930
931 table = table->baseTable;
932 }
933
934 // Lets free some memory.
935 size_t i;
936 for(i = 0; i < m_size; i++)
937 {
938 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
939 if (eTTnode)
940 {
941 eTTnode->eventEntryTable.Shrink();
942 }
943 }
944}
945
946void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
947{
948 // This might happen 'accidentally' as the app is exiting
949 if (!m_eventTypeTable)
950 return;
951
952 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
953 EventTypeTablePointer eTTnode = *peTTnode;
954
955 if (eTTnode)
956 {
957 if (eTTnode->eventType != entry.m_eventType)
958 {
959 // Resize the table!
960 GrowEventTypeTable();
961 // Try again to add it.
962 AddEntry(entry);
963 return;
964 }
965 }
966 else
967 {
968 eTTnode = new EventTypeTable;
969 eTTnode->eventType = entry.m_eventType;
970 *peTTnode = eTTnode;
971 }
972
973 // Fill all hash entries between entry.m_id and entry.m_lastId...
974 eTTnode->eventEntryTable.Add(&entry);
975}
976
977void wxEventHashTable::AllocEventTypeTable(size_t size)
978{
979 m_eventTypeTable = new EventTypeTablePointer[size];
980 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
981 m_size = size;
982}
983
984void wxEventHashTable::GrowEventTypeTable()
985{
986 size_t oldSize = m_size;
987 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
988
989 // TODO: Search the most optimal grow sequence
990 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
991
992 for ( size_t i = 0; i < oldSize; /* */ )
993 {
994 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
995 if (eTToldNode)
996 {
997 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
998 EventTypeTablePointer eTTnode = *peTTnode;
999
1000 // Check for collision, we don't want any.
1001 if (eTTnode)
1002 {
1003 GrowEventTypeTable();
1004 continue; // Don't increment the counter,
1005 // as we still need to add this element.
1006 }
1007 else
1008 {
1009 // Get the old value and put it in the new table.
1010 *peTTnode = oldEventTypeTable[i];
1011 }
1012 }
1013
1014 i++;
1015 }
1016
1017 delete[] oldEventTypeTable;
1018}
1019
1020
1021// ----------------------------------------------------------------------------
1022// wxEvtHandler
1023// ----------------------------------------------------------------------------
1024
1025/*
1026 * Event handler
1027 */
1028
1029wxEvtHandler::wxEvtHandler()
1030{
1031 m_nextHandler = (wxEvtHandler *) NULL;
1032 m_previousHandler = (wxEvtHandler *) NULL;
1033 m_enabled = true;
1034 m_dynamicEvents = (wxList *) NULL;
1035 m_pendingEvents = (wxList *) NULL;
1036#if wxUSE_THREADS
1037# if !defined(__VISAGECPP__)
1038 m_eventsLocker = new wxCriticalSection;
1039# endif
1040#endif
1041
1042 // no client data (yet)
1043 m_clientData = NULL;
1044 m_clientDataType = wxClientData_None;
1045}
1046
1047wxEvtHandler::~wxEvtHandler()
1048{
1049 // Takes itself out of the list of handlers
1050 if (m_previousHandler)
1051 m_previousHandler->m_nextHandler = m_nextHandler;
1052
1053 if (m_nextHandler)
1054 m_nextHandler->m_previousHandler = m_previousHandler;
1055
1056 if (m_dynamicEvents)
1057 {
1058 for ( wxList::iterator it = m_dynamicEvents->begin(),
1059 end = m_dynamicEvents->end();
1060 it != end;
1061 ++it )
1062 {
1063#if WXWIN_COMPATIBILITY_EVENT_TYPES
1064 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1065#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1066 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1067#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1068
1069 if (entry->m_callbackUserData)
1070 delete entry->m_callbackUserData;
1071 delete entry;
1072 }
1073 delete m_dynamicEvents;
1074 };
1075
1076 if (m_pendingEvents)
1077 m_pendingEvents->DeleteContents(true);
1078 delete m_pendingEvents;
1079
1080#if wxUSE_THREADS
1081# if !defined(__VISAGECPP__)
1082 delete m_eventsLocker;
1083# endif
1084
1085 // Remove us from wxPendingEvents if necessary.
1086 if(wxPendingEventsLocker)
1087 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1088 if ( wxPendingEvents )
1089 {
1090 // Delete all occurences of this from the list of pending events
1091 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1092 }
1093 if(wxPendingEventsLocker)
1094 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1095#endif
1096
1097 // we only delete object data, not untyped
1098 if ( m_clientDataType == wxClientData_Object )
1099 delete m_clientObject;
1100}
1101
1102#if wxUSE_THREADS
1103
1104bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
1105{
1106 // check that we are really in a child thread
1107 wxASSERT_MSG( !wxThread::IsMain(),
1108 wxT("use ProcessEvent() in main thread") );
1109
1110 AddPendingEvent(event);
1111
1112 return true;
1113}
1114
1115void wxEvtHandler::ClearEventLocker()
1116{
1117#if !defined(__VISAGECPP__)
1118 delete m_eventsLocker;
1119 m_eventsLocker = NULL;
1120#endif
1121}
1122
1123#endif // wxUSE_THREADS
1124
1125void wxEvtHandler::AddPendingEvent(const wxEvent& event)
1126{
1127 // 1) Add event to list of pending events of this event handler
1128
1129 wxEvent *eventCopy = event.Clone();
1130
1131 // we must be able to copy the events here so the event class must
1132 // implement Clone() properly instead of just providing a NULL stab for it
1133 wxCHECK_RET( eventCopy,
1134 _T("events of this type aren't supposed to be posted") );
1135
1136 wxENTER_CRIT_SECT( Lock() );
1137
1138 if ( !m_pendingEvents )
1139 m_pendingEvents = new wxList;
1140
1141 m_pendingEvents->Append(eventCopy);
1142
1143 wxLEAVE_CRIT_SECT( Lock() );
1144
1145 // 2) Add this event handler to list of event handlers that
1146 // have pending events.
1147
1148 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1149
1150 if ( !wxPendingEvents )
1151 wxPendingEvents = new wxList;
1152 wxPendingEvents->Append(this);
1153
1154 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1155
1156 // 3) Inform the system that new pending events are somewhere,
1157 // and that these should be processed in idle time.
1158 wxWakeUpIdle();
1159}
1160
1161void wxEvtHandler::ProcessPendingEvents()
1162{
1163 // this method is only called by wxApp if this handler does have
1164 // pending events
1165 wxCHECK_RET( m_pendingEvents,
1166 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1167
1168 wxENTER_CRIT_SECT( Lock() );
1169
1170 // we leave the loop once we have processed all events that were present at
1171 // the start of ProcessPendingEvents because otherwise we could get into
1172 // infinite loop if the pending event handler execution resulted in another
1173 // event being posted
1174 size_t n = m_pendingEvents->size();
1175 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1176 node;
1177 node = m_pendingEvents->GetFirst() )
1178 {
1179 wxEvent *event = (wxEvent *)node->GetData();
1180
1181 // It's importan we remove event from list before processing it.
1182 // Else a nested event loop, for example from a modal dialog, might
1183 // process the same event again.
1184
1185 m_pendingEvents->Erase(node);
1186
1187 wxLEAVE_CRIT_SECT( Lock() );
1188
1189 ProcessEvent(*event);
1190
1191 delete event;
1192
1193 wxENTER_CRIT_SECT( Lock() );
1194
1195 if ( --n == 0 )
1196 break;
1197 }
1198
1199 wxLEAVE_CRIT_SECT( Lock() );
1200}
1201
1202/*
1203 * Event table stuff
1204 */
1205/* static */ bool
1206wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1207 wxEvtHandler *handler,
1208 wxEvent& event)
1209{
1210 int tableId1 = entry.m_id,
1211 tableId2 = entry.m_lastId;
1212
1213 // match only if the event type is the same and the id is either -1 in
1214 // the event table (meaning "any") or the event id matches the id
1215 // specified in the event table either exactly or by falling into
1216 // range between first and last
1217 if ((tableId1 == wxID_ANY) ||
1218 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1219 (tableId2 != wxID_ANY &&
1220 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1221 {
1222 event.Skip(false);
1223 event.m_callbackUserData = entry.m_callbackUserData;
1224
1225#if wxUSE_EXCEPTIONS
1226 if ( wxTheApp )
1227 {
1228 // call the handler via wxApp method which allows the user to catch
1229 // any exceptions which may be thrown by any handler in the program
1230 // in one place
1231 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1232 }
1233 else
1234#endif // wxUSE_EXCEPTIONS
1235 {
1236 // no need for an extra virtual function call
1237 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1238 }
1239
1240 if (!event.GetSkipped())
1241 return true;
1242 }
1243
1244 return false;
1245}
1246
1247bool wxEvtHandler::TryParent(wxEvent& event)
1248{
1249 if ( wxTheApp && (this != wxTheApp) )
1250 {
1251 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1252 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1253 // processed appropriately via SearchEventTable.
1254 if ( event.GetEventType() != wxEVT_IDLE )
1255 {
1256 if ( wxTheApp->ProcessEvent(event) )
1257 return true;
1258 }
1259 }
1260
1261 return false;
1262}
1263
1264bool wxEvtHandler::ProcessEvent(wxEvent& event)
1265{
1266 // allow the application to hook into event processing
1267 if ( wxTheApp )
1268 {
1269 int rc = wxTheApp->FilterEvent(event);
1270 if ( rc != -1 )
1271 {
1272 wxASSERT_MSG( rc == 1 || rc == 0,
1273 _T("unexpected wxApp::FilterEvent return value") );
1274
1275 return rc != 0;
1276 }
1277 //else: proceed normally
1278 }
1279
1280 // An event handler can be enabled or disabled
1281 if ( GetEvtHandlerEnabled() )
1282 {
1283 // if we have a validator, it has higher priority than our own event
1284 // table
1285 if ( TryValidator(event) )
1286 return true;
1287
1288 // Handle per-instance dynamic event tables first
1289 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1290 return true;
1291
1292 // Then static per-class event tables
1293 if ( GetEventHashTable().HandleEvent(event, this) )
1294 return true;
1295 }
1296
1297 // Try going down the event handler chain
1298 if ( GetNextHandler() )
1299 {
1300 // notice that we shouldn't let the parent have the event even if the
1301 // next handler does not process it because it will have already passed
1302 // it to the parent in this case
1303 return GetNextHandler()->ProcessEvent(event);
1304 }
1305
1306 // Finally propagate the event upwards the window chain and/or to the
1307 // application object as necessary
1308 return TryParent(event);
1309}
1310
1311
1312bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1313{
1314 const wxEventType eventType = event.GetEventType();
1315 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1316 {
1317 const wxEventTableEntry& entry = table.entries[i];
1318 if ( eventType == entry.m_eventType )
1319 {
1320 if ( ProcessEventIfMatches(entry, this, event) )
1321 return true;
1322 }
1323 }
1324
1325 return false;
1326}
1327
1328void wxEvtHandler::Connect( int id, int lastId,
1329 int eventType,
1330 wxObjectEventFunction func,
1331 wxObject *userData,
1332 wxEvtHandler* eventSink )
1333{
1334#if WXWIN_COMPATIBILITY_EVENT_TYPES
1335 wxEventTableEntry *entry = new wxEventTableEntry;
1336 entry->m_eventType = eventType;
1337 entry->m_id = id;
1338 entry->m_lastId = lastId;
1339 entry->m_fn = func;
1340 entry->m_callbackUserData = userData;
1341#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1342 wxDynamicEventTableEntry *entry =
1343 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1344#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1345
1346 if (!m_dynamicEvents)
1347 m_dynamicEvents = new wxList;
1348
1349 // Insert at the front of the list so most recent additions are found first
1350 m_dynamicEvents->Insert( (wxObject*) entry );
1351}
1352
1353bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1354 wxObjectEventFunction func,
1355 wxObject *userData,
1356 wxEvtHandler* eventSink )
1357{
1358 if (!m_dynamicEvents)
1359 return false;
1360
1361 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1362 while (node)
1363 {
1364#if WXWIN_COMPATIBILITY_EVENT_TYPES
1365 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1366#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1367 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1368#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1369
1370 if ((entry->m_id == id) &&
1371 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1372 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1373 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1374 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1375 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1376 {
1377 if (entry->m_callbackUserData)
1378 delete entry->m_callbackUserData;
1379 m_dynamicEvents->Erase( node );
1380 delete entry;
1381 return true;
1382 }
1383 node = node->GetNext();
1384 }
1385 return false;
1386}
1387
1388bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1389{
1390 wxCHECK_MSG( m_dynamicEvents, false,
1391 wxT("caller should check that we have dynamic events") );
1392
1393 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1394 while (node)
1395 {
1396#if WXWIN_COMPATIBILITY_EVENT_TYPES
1397 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1398#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1399 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1400#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1401
1402 // get next node before (maybe) calling the event handler as it could
1403 // call Disconnect() invalidating the current node
1404 node = node->GetNext();
1405
1406 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1407 {
1408 wxEvtHandler *handler =
1409#if !WXWIN_COMPATIBILITY_EVENT_TYPES
1410 entry->m_eventSink ? entry->m_eventSink
1411 :
1412#endif
1413 this;
1414
1415 if ( ProcessEventIfMatches(*entry, handler, event) )
1416 {
1417 return true;
1418 }
1419 }
1420 }
1421
1422 return false;
1423}
1424
1425void wxEvtHandler::DoSetClientObject( wxClientData *data )
1426{
1427 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1428 wxT("can't have both object and void client data") );
1429
1430 if ( m_clientObject )
1431 delete m_clientObject;
1432
1433 m_clientObject = data;
1434 m_clientDataType = wxClientData_Object;
1435}
1436
1437wxClientData *wxEvtHandler::DoGetClientObject() const
1438{
1439 // it's not an error to call GetClientObject() on a window which doesn't
1440 // have client data at all - NULL will be returned
1441 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1442 wxT("this window doesn't have object client data") );
1443
1444 return m_clientObject;
1445}
1446
1447void wxEvtHandler::DoSetClientData( void *data )
1448{
1449 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1450 wxT("can't have both object and void client data") );
1451
1452 m_clientData = data;
1453 m_clientDataType = wxClientData_Void;
1454}
1455
1456void *wxEvtHandler::DoGetClientData() const
1457{
1458 // it's not an error to call GetClientData() on a window which doesn't have
1459 // client data at all - NULL will be returned
1460 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1461 wxT("this window doesn't have void client data") );
1462
1463 return m_clientData;
1464}
1465
1466#endif // wxUSE_BASE
1467
1468#if wxUSE_GUI
1469
1470// Find a window with the focus, that is also a descendant of the given window.
1471// This is used to determine the window to initially send commands to.
1472wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1473{
1474 // Process events starting with the window with the focus, if any.
1475 wxWindow* focusWin = wxWindow::FindFocus();
1476 wxWindow* win = focusWin;
1477
1478 // Check if this is a descendant of this frame.
1479 // If not, win will be set to NULL.
1480 while (win)
1481 {
1482 if (win == ancestor)
1483 break;
1484 else
1485 win = win->GetParent();
1486 }
1487 if (win == (wxWindow*) NULL)
1488 focusWin = (wxWindow*) NULL;
1489
1490 return focusWin;
1491}
1492
1493// ----------------------------------------------------------------------------
1494// wxEventBlocker
1495// ----------------------------------------------------------------------------
1496
1497wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1498{
1499 wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1500
1501 m_window = win;
1502
1503 Block(type);
1504 m_window->PushEventHandler(this);
1505}
1506
1507wxEventBlocker::~wxEventBlocker()
1508{
1509 wxEvtHandler *popped = m_window->PopEventHandler(false);
1510 wxCHECK_RET(popped == this,
1511 wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1512}
1513
1514bool wxEventBlocker::ProcessEvent(wxEvent& event)
1515{
1516 // should this event be blocked?
1517 for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1518 {
1519 wxEventType t = (wxEventType)m_eventsToBlock[i];
1520 if ( t == wxEVT_ANY || t == event.GetEventType() )
1521 return true; // yes, it should: mark this event as processed
1522 }
1523
1524 return false;
1525}
1526
1527#endif // wxUSE_GUI
wxWidgets (Impactor)