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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
35 #if wxUSE_GUI
36 #include "wx/control.h"
37 #include "wx/dc.h"
38 #include "wx/textctrl.h"
39 #include "wx/validate.h"
40 #endif // wxUSE_GUI
41#endif
42
43#include "wx/module.h"
44
45// ----------------------------------------------------------------------------
46// wxWin macros
47// ----------------------------------------------------------------------------
48
49#if wxUSE_BASE
50 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
51 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
52#endif // wxUSE_BASE
53
54#if wxUSE_GUI
55 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
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(wxClipboardTextEvent, wxCommandEvent)
91#endif // wxUSE_GUI
92
93#if wxUSE_BASE
94
95const wxEventTable *wxEvtHandler::GetEventTable() const
96 { return &wxEvtHandler::sm_eventTable; }
97
98const wxEventTable wxEvtHandler::sm_eventTable =
99 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
100
101wxEventHashTable &wxEvtHandler::GetEventHashTable() const
102 { return wxEvtHandler::sm_eventHashTable; }
103
104wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
105
106const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
107 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
108
109
110#ifdef __WXDEBUG__
111// Clear up event hash table contents or we can get problems
112// when C++ is cleaning up the static object
113class wxEventTableEntryModule: public wxModule
114{
115DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
116public:
117 wxEventTableEntryModule() {}
118 bool OnInit() { return true; }
119 void OnExit()
120 {
121 wxEventHashTable::ClearAll();
122 }
123};
124IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
125#endif
126
127// ----------------------------------------------------------------------------
128// global variables
129// ----------------------------------------------------------------------------
130
131// To put pending event handlers
132wxList *wxPendingEvents = (wxList *)NULL;
133
134#if wxUSE_THREADS
135 // protects wxPendingEvents list
136 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
137#endif
138
139#if !WXWIN_COMPATIBILITY_EVENT_TYPES
140
141// common event types are defined here, other event types are defined by the
142// components which use them
143
144const wxEventType wxEVT_FIRST = 10000;
145const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
146
147DEFINE_EVENT_TYPE(wxEVT_NULL)
148DEFINE_EVENT_TYPE(wxEVT_IDLE)
149DEFINE_EVENT_TYPE(wxEVT_SOCKET)
150
151#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
152
153#endif // wxUSE_BASE
154
155#if wxUSE_GUI
156
157#if !WXWIN_COMPATIBILITY_EVENT_TYPES
158
159DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
160DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
161DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
162DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
163DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
164DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
165DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
166DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
167DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
168DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
169DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
170DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
171DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
172DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
173DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
174DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
175
176// Sockets and timers send events, too
177DEFINE_EVENT_TYPE(wxEVT_TIMER)
178
179// Mouse event types
180DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
181DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
182DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
183DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
184DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
185DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
186DEFINE_EVENT_TYPE(wxEVT_MOTION)
187DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
188DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
189DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
190DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
191DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
192DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
193DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
194DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
195DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
196
197// Non-client mouse events
198DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
199DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
200DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
201DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
202DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
203DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
204DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
205DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
206DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
207DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
208DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
209DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
210
211// Character input event type
212DEFINE_EVENT_TYPE(wxEVT_CHAR)
213DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
214DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
215DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
216DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
217#if wxUSE_HOTKEY
218DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
219#endif
220
221// Set cursor event
222DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
223
224// wxScrollbar and wxSlider event identifiers
225DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
226DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
227DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
228DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
229DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
230DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
231DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
232DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
233DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
234
235// Scroll events from wxWindow
236DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
237DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
238DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
239DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
240DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
241DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
242DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
243DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
244
245// System events
246DEFINE_EVENT_TYPE(wxEVT_SIZE)
247DEFINE_EVENT_TYPE(wxEVT_SIZING)
248DEFINE_EVENT_TYPE(wxEVT_MOVE)
249DEFINE_EVENT_TYPE(wxEVT_MOVING)
250DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
251DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
252DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
253DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
254DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
255DEFINE_EVENT_TYPE(wxEVT_POWER)
256DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
257DEFINE_EVENT_TYPE(wxEVT_CREATE)
258DEFINE_EVENT_TYPE(wxEVT_DESTROY)
259DEFINE_EVENT_TYPE(wxEVT_SHOW)
260DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
261DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
262DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
263DEFINE_EVENT_TYPE(wxEVT_PAINT)
264DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
265DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
266DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
267DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
268DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
269DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
270DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
271DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
272DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
273DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
274DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
275DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
276DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
277DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
278DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
279DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
280DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
281DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
282DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
283DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
284DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
285DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
286
287// Clipboard events
288DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
289DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
290DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
291
292// Generic command events
293// Note: a click is a higher-level event than button down/up
294DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
295DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
296DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
297DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
298DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
299DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
300DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
301
302// Help events
303DEFINE_EVENT_TYPE(wxEVT_HELP)
304DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
305
306#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
307
308#endif // wxUSE_GUI
309
310#if wxUSE_BASE
311
312// ============================================================================
313// implementation
314// ============================================================================
315
316// ----------------------------------------------------------------------------
317// event initialization
318// ----------------------------------------------------------------------------
319
320int wxNewEventType()
321{
322 // MT-FIXME
323 static int s_lastUsedEventType = wxEVT_FIRST;
324
325 return s_lastUsedEventType++;
326}
327
328// ----------------------------------------------------------------------------
329// wxEvent
330// ----------------------------------------------------------------------------
331
332/*
333 * General wxWidgets events, covering
334 * all interesting things that might happen (button clicking, resizing,
335 * setting text in widgets, etc.).
336 *
337 * For each completely new event type, derive a new event class.
338 *
339 */
340
341wxEvent::wxEvent(int theId, wxEventType commandType )
342{
343 m_eventType = commandType;
344 m_eventObject = (wxObject *) NULL;
345 m_timeStamp = 0;
346 m_id = theId;
347 m_skipped = false;
348 m_callbackUserData = (wxObject *) NULL;
349 m_isCommandEvent = false;
350 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
351}
352
353wxEvent::wxEvent(const wxEvent &src)
354 : wxObject()
355 , m_eventObject(src.m_eventObject)
356 , m_eventType(src.m_eventType)
357 , m_timeStamp(src.m_timeStamp)
358 , m_id(src.m_id)
359 , m_callbackUserData(src.m_callbackUserData)
360 , m_propagationLevel(src.m_propagationLevel)
361 , m_skipped(src.m_skipped)
362 , m_isCommandEvent(src.m_isCommandEvent)
363{
364}
365
366#endif // wxUSE_BASE
367
368#if wxUSE_GUI
369
370/*
371 * Command events
372 *
373 */
374
375#ifdef __VISUALC__
376 // 'this' : used in base member initializer list (for m_commandString)
377 #pragma warning(disable:4355)
378#endif
379
380wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
381 : wxEvent(theId, commandType)
382#if WXWIN_COMPATIBILITY_2_4
383 , m_commandString(this)
384#endif
385{
386 m_clientData = (char *) NULL;
387 m_clientObject = (wxClientData *) NULL;
388 m_extraLong = 0;
389 m_commandInt = 0;
390 m_isCommandEvent = true;
391
392 // the command events are propagated upwards by default
393 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
394}
395
396#ifdef __VISUALC__
397 #pragma warning(default:4355)
398#endif
399
400wxString wxCommandEvent::GetString() const
401{
402 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
403 return m_cmdString;
404 else
405 {
406#if wxUSE_TEXTCTRL
407 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
408 if(txt)
409 return txt->GetValue();
410 else
411#endif // wxUSE_TEXTCTRL
412 return m_cmdString;
413 }
414}
415
416/*
417 * UI update events
418 */
419
420#if wxUSE_LONGLONG
421wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
422#endif
423
424long wxUpdateUIEvent::sm_updateInterval = 0;
425
426wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
427
428// Can we update?
429bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
430{
431 // Don't update if we've switched global updating off
432 // and this window doesn't support updates.
433 if (win &&
434 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
435 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
436 return false;
437
438 if (sm_updateInterval == -1)
439 return false;
440
441 if (sm_updateInterval == 0)
442 return true;
443
444#if wxUSE_STOPWATCH && wxUSE_LONGLONG
445 wxLongLong now = wxGetLocalTimeMillis();
446 if (now > (sm_lastUpdate + sm_updateInterval))
447 {
448 return true;
449 }
450
451 return false;
452#else
453 // If we don't have wxStopWatch or wxLongLong, we
454 // should err on the safe side and update now anyway.
455 return true;
456#endif
457}
458
459// Reset the update time to provide a delay until the next
460// time we should update
461void wxUpdateUIEvent::ResetUpdateTime()
462{
463#if wxUSE_STOPWATCH && wxUSE_LONGLONG
464 if (sm_updateInterval > 0)
465 {
466 wxLongLong now = wxGetLocalTimeMillis();
467 if (now > (sm_lastUpdate + sm_updateInterval))
468 {
469 sm_lastUpdate = now;
470 }
471 }
472#endif
473}
474
475/*
476 * Idle events
477 */
478
479wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
480
481// Can we send an idle event?
482bool wxIdleEvent::CanSend(wxWindow* win)
483{
484 // Don't update if we've switched global updating off
485 // and this window doesn't support updates.
486 if (win &&
487 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
488 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
489 return false;
490
491 return true;
492}
493
494/*
495 * Scroll events
496 */
497
498wxScrollEvent::wxScrollEvent(wxEventType commandType,
499 int id,
500 int pos,
501 int orient)
502 : wxCommandEvent(commandType, id)
503{
504 m_extraLong = orient;
505 m_commandInt = pos;
506}
507
508/*
509 * ScrollWin events
510 */
511
512wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
513 int pos,
514 int orient)
515{
516 m_eventType = commandType;
517 m_extraLong = orient;
518 m_commandInt = pos;
519}
520
521/*
522 * Mouse events
523 *
524 */
525
526wxMouseEvent::wxMouseEvent(wxEventType commandType)
527{
528 m_eventType = commandType;
529 m_metaDown = false;
530 m_altDown = false;
531 m_controlDown = false;
532 m_shiftDown = false;
533 m_leftDown = false;
534 m_rightDown = false;
535 m_middleDown = false;
536 m_x = 0;
537 m_y = 0;
538 m_wheelRotation = 0;
539 m_wheelDelta = 0;
540 m_linesPerAction = 0;
541}
542
543void wxMouseEvent::Assign(const wxMouseEvent& event)
544{
545 m_eventType = event.m_eventType;
546
547 m_x = event.m_x;
548 m_y = event.m_y;
549
550 m_leftDown = event.m_leftDown;
551 m_middleDown = event.m_middleDown;
552 m_rightDown = event.m_rightDown;
553
554 m_controlDown = event.m_controlDown;
555 m_shiftDown = event.m_shiftDown;
556 m_altDown = event.m_altDown;
557 m_metaDown = event.m_metaDown;
558
559 m_wheelRotation = event.m_wheelRotation;
560 m_wheelDelta = event.m_wheelDelta;
561 m_linesPerAction = event.m_linesPerAction;
562}
563
564// return true if was a button dclick event
565bool wxMouseEvent::ButtonDClick(int but) const
566{
567 switch (but)
568 {
569 default:
570 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
571 // fall through
572
573 case wxMOUSE_BTN_ANY:
574 return (LeftDClick() || MiddleDClick() || RightDClick());
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}
586
587// return true if was a button down event
588bool wxMouseEvent::ButtonDown(int but) const
589{
590 switch (but)
591 {
592 default:
593 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
594 // fall through
595
596 case wxMOUSE_BTN_ANY:
597 return (LeftDown() || MiddleDown() || RightDown());
598
599 case wxMOUSE_BTN_LEFT:
600 return LeftDown();
601
602 case wxMOUSE_BTN_MIDDLE:
603 return MiddleDown();
604
605 case wxMOUSE_BTN_RIGHT:
606 return RightDown();
607 }
608}
609
610// return true if was a button up event
611bool wxMouseEvent::ButtonUp(int but) const
612{
613 switch (but)
614 {
615 default:
616 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
617 // fall through
618
619 case wxMOUSE_BTN_ANY:
620 return (LeftUp() || MiddleUp() || RightUp());
621
622 case wxMOUSE_BTN_LEFT:
623 return LeftUp();
624
625 case wxMOUSE_BTN_MIDDLE:
626 return MiddleUp();
627
628 case wxMOUSE_BTN_RIGHT:
629 return RightUp();
630 }
631}
632
633// return true if the given button is currently changing state
634bool wxMouseEvent::Button(int but) const
635{
636 switch (but)
637 {
638 default:
639 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
640 // fall through
641
642 case wxMOUSE_BTN_ANY:
643 return ButtonUp(wxMOUSE_BTN_ANY) ||
644 ButtonDown(wxMOUSE_BTN_ANY) ||
645 ButtonDClick(wxMOUSE_BTN_ANY);
646
647 case wxMOUSE_BTN_LEFT:
648 return LeftDown() || LeftUp() || LeftDClick();
649
650 case wxMOUSE_BTN_MIDDLE:
651 return MiddleDown() || MiddleUp() || MiddleDClick();
652
653 case wxMOUSE_BTN_RIGHT:
654 return RightDown() || RightUp() || RightDClick();
655 }
656}
657
658bool wxMouseEvent::ButtonIsDown(int but) const
659{
660 switch (but)
661 {
662 default:
663 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
664 // fall through
665
666 case wxMOUSE_BTN_ANY:
667 return LeftIsDown() || MiddleIsDown() || RightIsDown();
668
669 case wxMOUSE_BTN_LEFT:
670 return LeftIsDown();
671
672 case wxMOUSE_BTN_MIDDLE:
673 return MiddleIsDown();
674
675 case wxMOUSE_BTN_RIGHT:
676 return RightIsDown();
677 }
678}
679
680int wxMouseEvent::GetButton() const
681{
682 for ( int i = 1; i <= 3; i++ )
683 {
684 if ( Button(i) )
685 {
686 return i;
687 }
688 }
689
690 return wxMOUSE_BTN_NONE;
691}
692
693// Find the logical position of the event given the DC
694wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
695{
696 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
697 return pt;
698}
699
700
701/*
702 * Keyboard event
703 *
704 */
705
706wxKeyEvent::wxKeyEvent(wxEventType type)
707{
708 m_eventType = type;
709 m_shiftDown = false;
710 m_controlDown = false;
711 m_metaDown = false;
712 m_altDown = false;
713 m_keyCode = 0;
714 m_scanCode = 0;
715#if wxUSE_UNICODE
716 m_uniChar = 0;
717#endif
718}
719
720wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
721 : wxEvent(evt)
722{
723 m_x = evt.m_x;
724 m_y = evt.m_y;
725
726 m_keyCode = evt.m_keyCode;
727
728 m_controlDown = evt.m_controlDown;
729 m_shiftDown = evt.m_shiftDown;
730 m_altDown = evt.m_altDown;
731 m_metaDown = evt.m_metaDown;
732 m_scanCode = evt.m_scanCode;
733 m_rawCode = evt.m_rawCode;
734 m_rawFlags = evt.m_rawFlags;
735
736#if wxUSE_UNICODE
737 m_uniChar = evt.m_uniChar;
738#endif
739}
740
741#if WXWIN_COMPATIBILITY_2_6
742long wxKeyEvent::KeyCode() const
743{
744 return m_keyCode;
745}
746#endif // WXWIN_COMPATIBILITY_2_6
747
748wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
749{
750 SetEventType(wxEVT_CREATE);
751 SetEventObject(win);
752}
753
754wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
755{
756 SetEventType(wxEVT_DESTROY);
757 SetEventObject(win);
758}
759
760wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
761 : wxCommandEvent(wxEVT_CHILD_FOCUS)
762{
763 SetEventObject(win);
764}
765
766// ----------------------------------------------------------------------------
767// wxHelpEvent
768// ----------------------------------------------------------------------------
769
770/* static */
771wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
772{
773 if ( origin == Origin_Unknown )
774 {
775 // assume that the event comes from the help button if it's not from
776 // keyboard and that pressing F1 always results in the help event
777 origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
778 }
779
780 return origin;
781}
782
783#endif // wxUSE_GUI
784
785
786#if wxUSE_BASE
787
788// ----------------------------------------------------------------------------
789// wxEventHashTable
790// ----------------------------------------------------------------------------
791
792static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
793
794wxEventHashTable* wxEventHashTable::sm_first = NULL;
795
796wxEventHashTable::wxEventHashTable(const wxEventTable &table)
797 : m_table(table),
798 m_rebuildHash(true)
799{
800 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
801
802 m_next = sm_first;
803 if (m_next)
804 m_next->m_previous = this;
805 sm_first = this;
806}
807
808wxEventHashTable::~wxEventHashTable()
809{
810 if (m_next)
811 m_next->m_previous = m_previous;
812 if (m_previous)
813 m_previous->m_next = m_next;
814 if (sm_first == this)
815 sm_first = m_next;
816
817 Clear();
818}
819
820void wxEventHashTable::Clear()
821{
822 size_t i;
823 for(i = 0; i < m_size; i++)
824 {
825 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
826 if (eTTnode)
827 {
828 delete eTTnode;
829 }
830 }
831
832 // Necessary in order to not invoke the
833 // overloaded delete operator when statics are cleaned up
834 if (m_eventTypeTable)
835 delete[] m_eventTypeTable;
836
837 m_eventTypeTable = NULL;
838 m_size = 0;
839}
840
841// Clear all tables
842void wxEventHashTable::ClearAll()
843{
844 wxEventHashTable* table = sm_first;
845 while (table)
846 {
847 table->Clear();
848 table = table->m_next;
849 }
850}
851
852bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
853{
854 if (m_rebuildHash)
855 {
856 InitHashTable();
857 m_rebuildHash = false;
858 }
859
860 if (!m_eventTypeTable)
861 return false;
862
863 // Find all entries for the given event type.
864 wxEventType eventType = event.GetEventType();
865 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
866 if (eTTnode && eTTnode->eventType == eventType)
867 {
868 // Now start the search for an event handler
869 // that can handle an event with the given ID.
870 const wxEventTableEntryPointerArray&
871 eventEntryTable = eTTnode->eventEntryTable;
872
873 const size_t count = eventEntryTable.GetCount();
874 for (size_t n = 0; n < count; n++)
875 {
876 if ( wxEvtHandler::
877 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
878 {
879 return true;
880 }
881 }
882 }
883
884 return false;
885}
886
887void wxEventHashTable::InitHashTable()
888{
889 // Loop over the event tables and all its base tables.
890 const wxEventTable *table = &m_table;
891 while (table)
892 {
893 // Retrieve all valid event handler entries
894 const wxEventTableEntry *entry = table->entries;
895 while (entry->m_fn != 0)
896 {
897 // Add the event entry in the Hash.
898 AddEntry(*entry);
899
900 entry++;
901 }
902
903 table = table->baseTable;
904 }
905
906 // Lets free some memory.
907 size_t i;
908 for(i = 0; i < m_size; i++)
909 {
910 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
911 if (eTTnode)
912 {
913 eTTnode->eventEntryTable.Shrink();
914 }
915 }
916}
917
918void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
919{
920 // This might happen 'accidentally' as the app is exiting
921 if (!m_eventTypeTable)
922 return;
923
924 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
925 EventTypeTablePointer eTTnode = *peTTnode;
926
927 if (eTTnode)
928 {
929 if (eTTnode->eventType != entry.m_eventType)
930 {
931 // Resize the table!
932 GrowEventTypeTable();
933 // Try again to add it.
934 AddEntry(entry);
935 return;
936 }
937 }
938 else
939 {
940 eTTnode = new EventTypeTable;
941 eTTnode->eventType = entry.m_eventType;
942 *peTTnode = eTTnode;
943 }
944
945 // Fill all hash entries between entry.m_id and entry.m_lastId...
946 eTTnode->eventEntryTable.Add(&entry);
947}
948
949void wxEventHashTable::AllocEventTypeTable(size_t size)
950{
951 m_eventTypeTable = new EventTypeTablePointer[size];
952 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
953 m_size = size;
954}
955
956void wxEventHashTable::GrowEventTypeTable()
957{
958 size_t oldSize = m_size;
959 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
960
961 // TODO: Search the most optimal grow sequence
962 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
963
964 for ( size_t i = 0; i < oldSize; /* */ )
965 {
966 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
967 if (eTToldNode)
968 {
969 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
970 EventTypeTablePointer eTTnode = *peTTnode;
971
972 // Check for collision, we don't want any.
973 if (eTTnode)
974 {
975 GrowEventTypeTable();
976 continue; // Don't increment the counter,
977 // as we still need to add this element.
978 }
979 else
980 {
981 // Get the old value and put it in the new table.
982 *peTTnode = oldEventTypeTable[i];
983 }
984 }
985
986 i++;
987 }
988
989 delete[] oldEventTypeTable;
990}
991
992
993// ----------------------------------------------------------------------------
994// wxEvtHandler
995// ----------------------------------------------------------------------------
996
997/*
998 * Event handler
999 */
1000
1001wxEvtHandler::wxEvtHandler()
1002{
1003 m_nextHandler = (wxEvtHandler *) NULL;
1004 m_previousHandler = (wxEvtHandler *) NULL;
1005 m_enabled = true;
1006 m_dynamicEvents = (wxList *) NULL;
1007 m_pendingEvents = (wxList *) NULL;
1008#if wxUSE_THREADS
1009# if !defined(__VISAGECPP__)
1010 m_eventsLocker = new wxCriticalSection;
1011# endif
1012#endif
1013 // no client data (yet)
1014 m_clientData = NULL;
1015 m_clientDataType = wxClientData_None;
1016}
1017
1018wxEvtHandler::~wxEvtHandler()
1019{
1020 // Takes itself out of the list of handlers
1021 if (m_previousHandler)
1022 m_previousHandler->m_nextHandler = m_nextHandler;
1023
1024 if (m_nextHandler)
1025 m_nextHandler->m_previousHandler = m_previousHandler;
1026
1027 if (m_dynamicEvents)
1028 {
1029 wxList::iterator it = m_dynamicEvents->begin(),
1030 en = m_dynamicEvents->end();
1031 for (;it != en; ++it)
1032 {
1033#if WXWIN_COMPATIBILITY_EVENT_TYPES
1034 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1035#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1036 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1037#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1038
1039 if (entry->m_callbackUserData)
1040 delete entry->m_callbackUserData;
1041 delete entry;
1042 }
1043 delete m_dynamicEvents;
1044 };
1045
1046 if (m_pendingEvents)
1047 m_pendingEvents->DeleteContents(true);
1048 delete m_pendingEvents;
1049
1050#if wxUSE_THREADS
1051# if !defined(__VISAGECPP__)
1052 delete m_eventsLocker;
1053# endif
1054
1055 // Remove us from wxPendingEvents if necessary.
1056 if(wxPendingEventsLocker)
1057 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1058 if ( wxPendingEvents )
1059 {
1060 // Delete all occurences of this from the list of pending events
1061 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1062 }
1063 if(wxPendingEventsLocker)
1064 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1065#endif
1066
1067 // we only delete object data, not untyped
1068 if ( m_clientDataType == wxClientData_Object )
1069 delete m_clientObject;
1070}
1071
1072#if wxUSE_THREADS
1073
1074bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1075{
1076 // check that we are really in a child thread
1077 wxASSERT_MSG( !wxThread::IsMain(),
1078 wxT("use ProcessEvent() in main thread") );
1079
1080 AddPendingEvent(event);
1081
1082 return true;
1083}
1084
1085void wxEvtHandler::ClearEventLocker()
1086{
1087#if !defined(__VISAGECPP__)
1088 delete m_eventsLocker;
1089 m_eventsLocker = NULL;
1090#endif
1091}
1092
1093#endif // wxUSE_THREADS
1094
1095void wxEvtHandler::AddPendingEvent(wxEvent& event)
1096{
1097 // 1) Add event to list of pending events of this event handler
1098
1099 wxEvent *eventCopy = event.Clone();
1100
1101 // we must be able to copy the events here so the event class must
1102 // implement Clone() properly instead of just providing a NULL stab for it
1103 wxCHECK_RET( eventCopy,
1104 _T("events of this type aren't supposed to be posted") );
1105
1106 wxENTER_CRIT_SECT( Lock() );
1107
1108 if ( !m_pendingEvents )
1109 m_pendingEvents = new wxList;
1110
1111 m_pendingEvents->Append(eventCopy);
1112
1113 wxLEAVE_CRIT_SECT( Lock() );
1114
1115 // 2) Add this event handler to list of event handlers that
1116 // have pending events.
1117
1118 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1119
1120 if ( !wxPendingEvents )
1121 wxPendingEvents = new wxList;
1122 wxPendingEvents->Append(this);
1123
1124 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1125
1126 // 3) Inform the system that new pending events are somewhere,
1127 // and that these should be processed in idle time.
1128 wxWakeUpIdle();
1129}
1130
1131void wxEvtHandler::ProcessPendingEvents()
1132{
1133 // this method is only called by wxApp if this handler does have pending
1134 // events
1135 wxCHECK_RET( m_pendingEvents,
1136 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1137
1138 wxENTER_CRIT_SECT( Lock() );
1139
1140 // we leave the loop once we have processed all events that were present at
1141 // the start of ProcessPendingEvents because otherwise we could get into
1142 // infinite loop if the pending event handler execution resulted in another
1143 // event being posted
1144 size_t n = m_pendingEvents->size();
1145 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1146 node;
1147 node = m_pendingEvents->GetFirst() )
1148 {
1149 wxEvent *event = (wxEvent *)node->GetData();
1150
1151 // It's importan we remove event from list before processing it.
1152 // Else a nested event loop, for example from a modal dialog, might
1153 // process the same event again.
1154 m_pendingEvents->Erase(node);
1155
1156 wxLEAVE_CRIT_SECT( Lock() );
1157
1158 ProcessEvent(*event);
1159 delete event;
1160
1161 wxENTER_CRIT_SECT( Lock() );
1162
1163 if ( --n == 0 )
1164 break;
1165 }
1166
1167 wxLEAVE_CRIT_SECT( Lock() );
1168}
1169
1170/*
1171 * Event table stuff
1172 */
1173/* static */ bool
1174wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1175 wxEvtHandler *handler,
1176 wxEvent& event)
1177{
1178 int tableId1 = entry.m_id,
1179 tableId2 = entry.m_lastId;
1180
1181 // match only if the event type is the same and the id is either -1 in
1182 // the event table (meaning "any") or the event id matches the id
1183 // specified in the event table either exactly or by falling into
1184 // range between first and last
1185 if ((tableId1 == wxID_ANY) ||
1186 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1187 (tableId2 != wxID_ANY &&
1188 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1189 {
1190 event.Skip(false);
1191 event.m_callbackUserData = entry.m_callbackUserData;
1192
1193#if wxUSE_EXCEPTIONS
1194 if ( wxTheApp )
1195 {
1196 // call the handler via wxApp method which allows the user to catch
1197 // any exceptions which may be thrown by any handler in the program
1198 // in one place
1199 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1200 }
1201 else
1202#endif // wxUSE_EXCEPTIONS
1203 {
1204 // no need for an extra virtual function call
1205 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1206 }
1207
1208 if (!event.GetSkipped())
1209 return true;
1210 }
1211
1212 return false;
1213}
1214
1215bool wxEvtHandler::TryParent(wxEvent& event)
1216{
1217 if ( wxTheApp && (this != wxTheApp) )
1218 {
1219 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1220 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1221 // processed appropriately via SearchEventTable.
1222 if ( event.GetEventType() != wxEVT_IDLE )
1223 {
1224 if ( wxTheApp->ProcessEvent(event) )
1225 return true;
1226 }
1227 }
1228
1229 return false;
1230}
1231
1232bool wxEvtHandler::ProcessEvent(wxEvent& event)
1233{
1234 // allow the application to hook into event processing
1235 if ( wxTheApp )
1236 {
1237 int rc = wxTheApp->FilterEvent(event);
1238 if ( rc != -1 )
1239 {
1240 wxASSERT_MSG( rc == 1 || rc == 0,
1241 _T("unexpected wxApp::FilterEvent return value") );
1242
1243 return rc != 0;
1244 }
1245 //else: proceed normally
1246 }
1247
1248 // An event handler can be enabled or disabled
1249 if ( GetEvtHandlerEnabled() )
1250 {
1251 // if we have a validator, it has higher priority than our own event
1252 // table
1253 if ( TryValidator(event) )
1254 return true;
1255
1256 // Handle per-instance dynamic event tables first
1257 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1258 return true;
1259
1260 // Then static per-class event tables
1261 if ( GetEventHashTable().HandleEvent(event, this) )
1262 return true;
1263 }
1264
1265 // Try going down the event handler chain
1266 if ( GetNextHandler() )
1267 {
1268 if ( GetNextHandler()->ProcessEvent(event) )
1269 return true;
1270 }
1271
1272 // Finally propagate the event upwards the window chain and/or to the
1273 // application object as necessary
1274 return TryParent(event);
1275}
1276
1277
1278bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1279{
1280 const wxEventType eventType = event.GetEventType();
1281 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1282 {
1283 const wxEventTableEntry& entry = table.entries[i];
1284 if ( eventType == entry.m_eventType )
1285 {
1286 if ( ProcessEventIfMatches(entry, this, event) )
1287 return true;
1288 }
1289 }
1290
1291 return false;
1292}
1293
1294void wxEvtHandler::Connect( int id, int lastId,
1295 int eventType,
1296 wxObjectEventFunction func,
1297 wxObject *userData,
1298 wxEvtHandler* eventSink )
1299{
1300#if WXWIN_COMPATIBILITY_EVENT_TYPES
1301 wxEventTableEntry *entry = new wxEventTableEntry;
1302 entry->m_eventType = eventType;
1303 entry->m_id = id;
1304 entry->m_lastId = lastId;
1305 entry->m_fn = func;
1306 entry->m_callbackUserData = userData;
1307#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1308 wxDynamicEventTableEntry *entry =
1309 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1310#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1311
1312 if (!m_dynamicEvents)
1313 m_dynamicEvents = new wxList;
1314
1315 // Insert at the front of the list so most recent additions are found first
1316 m_dynamicEvents->Insert( (wxObject*) entry );
1317}
1318
1319bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1320 wxObjectEventFunction func,
1321 wxObject *userData,
1322 wxEvtHandler* eventSink )
1323{
1324 if (!m_dynamicEvents)
1325 return false;
1326
1327 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1328 while (node)
1329 {
1330#if WXWIN_COMPATIBILITY_EVENT_TYPES
1331 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1332#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1333 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1334#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1335
1336 if ((entry->m_id == id) &&
1337 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1338 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1339 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1340 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1341 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1342 {
1343 if (entry->m_callbackUserData)
1344 delete entry->m_callbackUserData;
1345 m_dynamicEvents->Erase( node );
1346 delete entry;
1347 return true;
1348 }
1349 node = node->GetNext();
1350 }
1351 return false;
1352}
1353
1354bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1355{
1356 wxCHECK_MSG( m_dynamicEvents, false,
1357 wxT("caller should check that we have dynamic events") );
1358
1359 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1360 while (node)
1361 {
1362#if WXWIN_COMPATIBILITY_EVENT_TYPES
1363 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1364#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1365 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1366#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1367
1368 // get next node before (maybe) calling the event handler as it could
1369 // call Disconnect() invalidating the current node
1370 node = node->GetNext();
1371
1372 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1373 {
1374 wxEvtHandler *handler =
1375#if !WXWIN_COMPATIBILITY_EVENT_TYPES
1376 entry->m_eventSink ? entry->m_eventSink
1377 :
1378#endif
1379 this;
1380
1381 if ( ProcessEventIfMatches(*entry, handler, event) )
1382 {
1383 return true;
1384 }
1385 }
1386 }
1387
1388 return false;
1389}
1390
1391void wxEvtHandler::DoSetClientObject( wxClientData *data )
1392{
1393 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1394 wxT("can't have both object and void client data") );
1395
1396 if ( m_clientObject )
1397 delete m_clientObject;
1398
1399 m_clientObject = data;
1400 m_clientDataType = wxClientData_Object;
1401}
1402
1403wxClientData *wxEvtHandler::DoGetClientObject() const
1404{
1405 // it's not an error to call GetClientObject() on a window which doesn't
1406 // have client data at all - NULL will be returned
1407 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1408 wxT("this window doesn't have object client data") );
1409
1410 return m_clientObject;
1411}
1412
1413void wxEvtHandler::DoSetClientData( void *data )
1414{
1415 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1416 wxT("can't have both object and void client data") );
1417
1418 m_clientData = data;
1419 m_clientDataType = wxClientData_Void;
1420}
1421
1422void *wxEvtHandler::DoGetClientData() const
1423{
1424 // it's not an error to call GetClientData() on a window which doesn't have
1425 // client data at all - NULL will be returned
1426 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1427 wxT("this window doesn't have void client data") );
1428
1429 return m_clientData;
1430}
1431
1432#endif // wxUSE_BASE
1433
1434#if wxUSE_GUI
1435
1436// Find a window with the focus, that is also a descendant of the given window.
1437// This is used to determine the window to initially send commands to.
1438wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1439{
1440 // Process events starting with the window with the focus, if any.
1441 wxWindow* focusWin = wxWindow::FindFocus();
1442 wxWindow* win = focusWin;
1443
1444 // Check if this is a descendant of this frame.
1445 // If not, win will be set to NULL.
1446 while (win)
1447 {
1448 if (win == ancestor)
1449 break;
1450 else
1451 win = win->GetParent();
1452 }
1453 if (win == (wxWindow*) NULL)
1454 focusWin = (wxWindow*) NULL;
1455
1456 return focusWin;
1457}
1458
1459#endif // wxUSE_GUI
wxWidgets (Impactor)