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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#ifndef WX_PRECOMP
28 #include "wx/app.h"
29 #include "wx/list.h"
30
31 #if wxUSE_GUI
32 #include "wx/control.h"
33 #include "wx/utils.h"
34 #include "wx/dc.h"
35 #include "wx/textctrl.h"
36 #endif // wxUSE_GUI
37#endif
38
39#include "wx/event.h"
40#include "wx/module.h"
41
42#if wxUSE_GUI
43 #include "wx/validate.h"
44#if wxUSE_STOPWATCH
45 #include "wx/stopwatch.h"
46#endif
47#endif // wxUSE_GUI
48
49// ----------------------------------------------------------------------------
50// wxWin macros
51// ----------------------------------------------------------------------------
52
53#if wxUSE_BASE
54 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
55 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
56#endif // wxUSE_BASE
57
58#if wxUSE_GUI
59 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
60 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
61 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
62 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
63 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
64 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
65 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
66 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
67 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
68 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
69 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
70 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
91 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
92 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
93 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
94#endif // wxUSE_GUI
95
96#if wxUSE_BASE
97
98const wxEventTable *wxEvtHandler::GetEventTable() const
99 { return &wxEvtHandler::sm_eventTable; }
100
101const wxEventTable wxEvtHandler::sm_eventTable =
102 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
103
104wxEventHashTable &wxEvtHandler::GetEventHashTable() const
105 { return wxEvtHandler::sm_eventHashTable; }
106
107wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
108
109const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
110 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
111
112
113#ifdef __WXDEBUG__
114// Clear up event hash table contents or we can get problems
115// when C++ is cleaning up the static object
116class wxEventTableEntryModule: public wxModule
117{
118DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
119public:
120 wxEventTableEntryModule() {}
121 bool OnInit() { return true; }
122 void OnExit()
123 {
124 wxEventHashTable::ClearAll();
125 }
126};
127IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
128#endif
129
130// ----------------------------------------------------------------------------
131// global variables
132// ----------------------------------------------------------------------------
133
134// To put pending event handlers
135wxList *wxPendingEvents = (wxList *)NULL;
136
137#if wxUSE_THREADS
138 // protects wxPendingEvents list
139 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
140#endif
141
142#if !WXWIN_COMPATIBILITY_EVENT_TYPES
143
144// common event types are defined here, other event types are defined by the
145// components which use them
146
147const wxEventType wxEVT_FIRST = 10000;
148const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
149
150DEFINE_EVENT_TYPE(wxEVT_NULL)
151DEFINE_EVENT_TYPE(wxEVT_IDLE)
152DEFINE_EVENT_TYPE(wxEVT_SOCKET)
153
154#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
155
156#endif // wxUSE_BASE
157
158#if wxUSE_GUI
159
160#if !WXWIN_COMPATIBILITY_EVENT_TYPES
161
162DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
163DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
164DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
165DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
166DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
167DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
168DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
169DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
170DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
171DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
172DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
173DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
174DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
175DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
176DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
177DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
178
179// Sockets and timers send events, too
180DEFINE_EVENT_TYPE(wxEVT_TIMER)
181
182// Mouse event types
183DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
184DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
185DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
186DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
187DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
188DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
189DEFINE_EVENT_TYPE(wxEVT_MOTION)
190DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
191DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
192DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
193DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
194DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
195DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
196DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
197DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
198DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
199
200// Non-client mouse events
201DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
202DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
203DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
204DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
205DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
206DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
207DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
208DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
209DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
210DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
211DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
212DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
213
214// Character input event type
215DEFINE_EVENT_TYPE(wxEVT_CHAR)
216DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
217DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
218DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
219DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
220#if wxUSE_HOTKEY
221DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
222#endif
223
224// Set cursor event
225DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
226
227// wxScrollbar and wxSlider event identifiers
228DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
229DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
230DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
231DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
232DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
233DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
234DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
235DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
236DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
237
238// Scroll events from wxWindow
239DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
240DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
241DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
242DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
243DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
244DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
245DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
246DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
247
248// System events
249DEFINE_EVENT_TYPE(wxEVT_SIZE)
250DEFINE_EVENT_TYPE(wxEVT_SIZING)
251DEFINE_EVENT_TYPE(wxEVT_MOVE)
252DEFINE_EVENT_TYPE(wxEVT_MOVING)
253DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
254DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
255DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
256DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
257DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
258DEFINE_EVENT_TYPE(wxEVT_POWER)
259DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
260DEFINE_EVENT_TYPE(wxEVT_CREATE)
261DEFINE_EVENT_TYPE(wxEVT_DESTROY)
262DEFINE_EVENT_TYPE(wxEVT_SHOW)
263DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
264DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
265DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
266DEFINE_EVENT_TYPE(wxEVT_PAINT)
267DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
268DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
269DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
270DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
271DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
272DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
273DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
274DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
275DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
276DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
277DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
278DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
279DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
280DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
281DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
282DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
283DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
284DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
285DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
286DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
287DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
288DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
289
290// Generic command events
291// Note: a click is a higher-level event than button down/up
292DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
293DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
294DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
295DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
296DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
297DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
298DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
299
300// Help events
301DEFINE_EVENT_TYPE(wxEVT_HELP)
302DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
303
304#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
305
306#endif // wxUSE_GUI
307
308#if wxUSE_BASE
309
310// ============================================================================
311// implementation
312// ============================================================================
313
314// ----------------------------------------------------------------------------
315// event initialization
316// ----------------------------------------------------------------------------
317
318int wxNewEventType()
319{
320 // MT-FIXME
321 static int s_lastUsedEventType = wxEVT_FIRST;
322
323 return s_lastUsedEventType++;
324}
325
326// ----------------------------------------------------------------------------
327// wxEvent
328// ----------------------------------------------------------------------------
329
330/*
331 * General wxWidgets events, covering
332 * all interesting things that might happen (button clicking, resizing,
333 * setting text in widgets, etc.).
334 *
335 * For each completely new event type, derive a new event class.
336 *
337 */
338
339wxEvent::wxEvent(int theId, wxEventType commandType )
340{
341 m_eventType = commandType;
342 m_eventObject = (wxObject *) NULL;
343 m_timeStamp = 0;
344 m_id = theId;
345 m_skipped = false;
346 m_callbackUserData = (wxObject *) NULL;
347 m_isCommandEvent = false;
348 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
349}
350
351wxEvent::wxEvent(const wxEvent &src)
352 : wxObject()
353 , m_eventObject(src.m_eventObject)
354 , m_eventType(src.m_eventType)
355 , m_timeStamp(src.m_timeStamp)
356 , m_id(src.m_id)
357 , m_callbackUserData(src.m_callbackUserData)
358 , m_propagationLevel(src.m_propagationLevel)
359 , m_skipped(src.m_skipped)
360 , m_isCommandEvent(src.m_isCommandEvent)
361{
362}
363
364#endif // wxUSE_BASE
365
366#if wxUSE_GUI
367
368/*
369 * Command events
370 *
371 */
372
373#ifdef __VISUALC__
374 // 'this' : used in base member initializer list (for m_commandString)
375 #pragma warning(disable:4355)
376#endif
377
378wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
379 : wxEvent(theId, commandType)
380#if WXWIN_COMPATIBILITY_2_4
381 , m_commandString(this)
382#endif
383{
384 m_clientData = (char *) NULL;
385 m_clientObject = (wxClientData *) NULL;
386 m_extraLong = 0;
387 m_commandInt = 0;
388 m_isCommandEvent = true;
389
390 // the command events are propagated upwards by default
391 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
392}
393
394#ifdef __VISUALC__
395 #pragma warning(default:4355)
396#endif
397
398wxString wxCommandEvent::GetString() const
399{
400 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
401 return m_cmdString;
402 else
403 {
404#if wxUSE_TEXTCTRL
405 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
406 if(txt)
407 return txt->GetValue();
408 else
409#endif // wxUSE_TEXTCTRL
410 return m_cmdString;
411 }
412}
413
414/*
415 * UI update events
416 */
417
418#if wxUSE_LONGLONG
419wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
420#endif
421
422long wxUpdateUIEvent::sm_updateInterval = 0;
423
424wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
425
426// Can we update?
427bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
428{
429 // Don't update if we've switched global updating off
430 // and this window doesn't support updates.
431 if (win &&
432 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
433 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
434 return false;
435
436 if (sm_updateInterval == -1)
437 return false;
438
439 if (sm_updateInterval == 0)
440 return true;
441
442#if wxUSE_STOPWATCH && wxUSE_LONGLONG
443 wxLongLong now = wxGetLocalTimeMillis();
444 if (now > (sm_lastUpdate + sm_updateInterval))
445 {
446 return true;
447 }
448
449 return false;
450#else
451 // If we don't have wxStopWatch or wxLongLong, we
452 // should err on the safe side and update now anyway.
453 return true;
454#endif
455}
456
457// Reset the update time to provide a delay until the next
458// time we should update
459void wxUpdateUIEvent::ResetUpdateTime()
460{
461#if wxUSE_STOPWATCH && wxUSE_LONGLONG
462 if (sm_updateInterval > 0)
463 {
464 wxLongLong now = wxGetLocalTimeMillis();
465 if (now > (sm_lastUpdate + sm_updateInterval))
466 {
467 sm_lastUpdate = now;
468 }
469 }
470#endif
471}
472
473/*
474 * Idle events
475 */
476
477wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
478
479// Can we send an idle event?
480bool wxIdleEvent::CanSend(wxWindow* win)
481{
482 // Don't update if we've switched global updating off
483 // and this window doesn't support updates.
484 if (win &&
485 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
486 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
487 return false;
488
489 return true;
490}
491
492/*
493 * Scroll events
494 */
495
496wxScrollEvent::wxScrollEvent(wxEventType commandType,
497 int id,
498 int pos,
499 int orient)
500 : wxCommandEvent(commandType, id)
501{
502 m_extraLong = orient;
503 m_commandInt = pos;
504}
505
506/*
507 * ScrollWin events
508 */
509
510wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
511 int pos,
512 int orient)
513{
514 m_eventType = commandType;
515 m_extraLong = orient;
516 m_commandInt = pos;
517}
518
519/*
520 * Mouse events
521 *
522 */
523
524wxMouseEvent::wxMouseEvent(wxEventType commandType)
525{
526 m_eventType = commandType;
527 m_metaDown = false;
528 m_altDown = false;
529 m_controlDown = false;
530 m_shiftDown = false;
531 m_leftDown = false;
532 m_rightDown = false;
533 m_middleDown = false;
534 m_x = 0;
535 m_y = 0;
536 m_wheelRotation = 0;
537 m_wheelDelta = 0;
538 m_linesPerAction = 0;
539}
540
541void wxMouseEvent::Assign(const wxMouseEvent& event)
542{
543 m_eventType = event.m_eventType;
544
545 m_x = event.m_x;
546 m_y = event.m_y;
547
548 m_leftDown = event.m_leftDown;
549 m_middleDown = event.m_middleDown;
550 m_rightDown = event.m_rightDown;
551
552 m_controlDown = event.m_controlDown;
553 m_shiftDown = event.m_shiftDown;
554 m_altDown = event.m_altDown;
555 m_metaDown = event.m_metaDown;
556
557 m_wheelRotation = event.m_wheelRotation;
558 m_wheelDelta = event.m_wheelDelta;
559 m_linesPerAction = event.m_linesPerAction;
560}
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
574 case wxMOUSE_BTN_LEFT:
575 return LeftDClick();
576
577 case wxMOUSE_BTN_MIDDLE:
578 return MiddleDClick();
579
580 case wxMOUSE_BTN_RIGHT:
581 return RightDClick();
582 }
583}
584
585// return true if was a button down event
586bool wxMouseEvent::ButtonDown(int but) const
587{
588 switch (but)
589 {
590 default:
591 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
592 // fall through
593
594 case wxMOUSE_BTN_ANY:
595 return (LeftDown() || MiddleDown() || RightDown());
596
597 case wxMOUSE_BTN_LEFT:
598 return LeftDown();
599
600 case wxMOUSE_BTN_MIDDLE:
601 return MiddleDown();
602
603 case wxMOUSE_BTN_RIGHT:
604 return RightDown();
605 }
606}
607
608// return true if was a button up event
609bool wxMouseEvent::ButtonUp(int but) const
610{
611 switch (but)
612 {
613 default:
614 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
615 // fall through
616
617 case wxMOUSE_BTN_ANY:
618 return (LeftUp() || MiddleUp() || RightUp());
619
620 case wxMOUSE_BTN_LEFT:
621 return LeftUp();
622
623 case wxMOUSE_BTN_MIDDLE:
624 return MiddleUp();
625
626 case wxMOUSE_BTN_RIGHT:
627 return RightUp();
628 }
629}
630
631// return true if the given button is currently changing state
632bool wxMouseEvent::Button(int but) const
633{
634 switch (but)
635 {
636 default:
637 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
638 // fall through
639
640 case wxMOUSE_BTN_ANY:
641 return ButtonUp(wxMOUSE_BTN_ANY) ||
642 ButtonDown(wxMOUSE_BTN_ANY) ||
643 ButtonDClick(wxMOUSE_BTN_ANY);
644
645 case wxMOUSE_BTN_LEFT:
646 return LeftDown() || LeftUp() || LeftDClick();
647
648 case wxMOUSE_BTN_MIDDLE:
649 return MiddleDown() || MiddleUp() || MiddleDClick();
650
651 case wxMOUSE_BTN_RIGHT:
652 return RightDown() || RightUp() || RightDClick();
653 }
654}
655
656bool wxMouseEvent::ButtonIsDown(int but) const
657{
658 switch (but)
659 {
660 default:
661 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
662 // fall through
663
664 case wxMOUSE_BTN_ANY:
665 return LeftIsDown() || MiddleIsDown() || RightIsDown();
666
667 case wxMOUSE_BTN_LEFT:
668 return LeftIsDown();
669
670 case wxMOUSE_BTN_MIDDLE:
671 return MiddleIsDown();
672
673 case wxMOUSE_BTN_RIGHT:
674 return RightIsDown();
675 }
676}
677
678int wxMouseEvent::GetButton() const
679{
680 for ( int i = 1; i <= 3; i++ )
681 {
682 if ( Button(i) )
683 {
684 return i;
685 }
686 }
687
688 return wxMOUSE_BTN_NONE;
689}
690
691// Find the logical position of the event given the DC
692wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
693{
694 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
695 return pt;
696}
697
698
699/*
700 * Keyboard event
701 *
702 */
703
704wxKeyEvent::wxKeyEvent(wxEventType type)
705{
706 m_eventType = type;
707 m_shiftDown = false;
708 m_controlDown = false;
709 m_metaDown = false;
710 m_altDown = false;
711 m_keyCode = 0;
712 m_scanCode = 0;
713#if wxUSE_UNICODE
714 m_uniChar = 0;
715#endif
716}
717
718wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
719 : wxEvent(evt)
720{
721 m_x = evt.m_x;
722 m_y = evt.m_y;
723
724 m_keyCode = evt.m_keyCode;
725
726 m_controlDown = evt.m_controlDown;
727 m_shiftDown = evt.m_shiftDown;
728 m_altDown = evt.m_altDown;
729 m_metaDown = evt.m_metaDown;
730 m_scanCode = evt.m_scanCode;
731 m_rawCode = evt.m_rawCode;
732 m_rawFlags = evt.m_rawFlags;
733
734#if wxUSE_UNICODE
735 m_uniChar = evt.m_uniChar;
736#endif
737}
738
739#if WXWIN_COMPATIBILITY_2_6
740long wxKeyEvent::KeyCode() const
741{
742 return m_keyCode;
743}
744#endif // WXWIN_COMPATIBILITY_2_6
745
746wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
747{
748 SetEventType(wxEVT_CREATE);
749 SetEventObject(win);
750}
751
752wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
753{
754 SetEventType(wxEVT_DESTROY);
755 SetEventObject(win);
756}
757
758wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
759 : wxCommandEvent(wxEVT_CHILD_FOCUS)
760{
761 SetEventObject(win);
762}
763
764#endif // wxUSE_GUI
765
766
767#if wxUSE_BASE
768
769// ----------------------------------------------------------------------------
770// wxEventHashTable
771// ----------------------------------------------------------------------------
772
773static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
774
775wxEventHashTable* wxEventHashTable::sm_first = NULL;
776
777wxEventHashTable::wxEventHashTable(const wxEventTable &table)
778 : m_table(table),
779 m_rebuildHash(true)
780{
781 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
782
783 m_next = sm_first;
784 if (m_next)
785 m_next->m_previous = this;
786 sm_first = this;
787}
788
789wxEventHashTable::~wxEventHashTable()
790{
791 if (m_next)
792 m_next->m_previous = m_previous;
793 if (m_previous)
794 m_previous->m_next = m_next;
795 if (sm_first == this)
796 sm_first = m_next;
797
798 Clear();
799}
800
801void wxEventHashTable::Clear()
802{
803 size_t i;
804 for(i = 0; i < m_size; i++)
805 {
806 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
807 if (eTTnode)
808 {
809 delete eTTnode;
810 }
811 }
812
813 // Necessary in order to not invoke the
814 // overloaded delete operator when statics are cleaned up
815 if (m_eventTypeTable)
816 delete[] m_eventTypeTable;
817
818 m_eventTypeTable = NULL;
819 m_size = 0;
820}
821
822// Clear all tables
823void wxEventHashTable::ClearAll()
824{
825 wxEventHashTable* table = sm_first;
826 while (table)
827 {
828 table->Clear();
829 table = table->m_next;
830 }
831}
832
833bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
834{
835 if (m_rebuildHash)
836 {
837 InitHashTable();
838 m_rebuildHash = false;
839 }
840
841 if (!m_eventTypeTable)
842 return false;
843
844 // Find all entries for the given event type.
845 wxEventType eventType = event.GetEventType();
846 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
847 if (eTTnode && eTTnode->eventType == eventType)
848 {
849 // Now start the search for an event handler
850 // that can handle an event with the given ID.
851 const wxEventTableEntryPointerArray&
852 eventEntryTable = eTTnode->eventEntryTable;
853
854 const size_t count = eventEntryTable.GetCount();
855 for (size_t n = 0; n < count; n++)
856 {
857 if ( wxEvtHandler::
858 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
859 {
860 return true;
861 }
862 }
863 }
864
865 return false;
866}
867
868void wxEventHashTable::InitHashTable()
869{
870 // Loop over the event tables and all its base tables.
871 const wxEventTable *table = &m_table;
872 while (table)
873 {
874 // Retrieve all valid event handler entries
875 const wxEventTableEntry *entry = table->entries;
876 while (entry->m_fn != 0)
877 {
878 // Add the event entry in the Hash.
879 AddEntry(*entry);
880
881 entry++;
882 }
883
884 table = table->baseTable;
885 }
886
887 // Lets free some memory.
888 size_t i;
889 for(i = 0; i < m_size; i++)
890 {
891 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
892 if (eTTnode)
893 {
894 eTTnode->eventEntryTable.Shrink();
895 }
896 }
897}
898
899void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
900{
901 // This might happen 'accidentally' as the app is exiting
902 if (!m_eventTypeTable)
903 return;
904
905 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
906 EventTypeTablePointer eTTnode = *peTTnode;
907
908 if (eTTnode)
909 {
910 if (eTTnode->eventType != entry.m_eventType)
911 {
912 // Resize the table!
913 GrowEventTypeTable();
914 // Try again to add it.
915 AddEntry(entry);
916 return;
917 }
918 }
919 else
920 {
921 eTTnode = new EventTypeTable;
922 eTTnode->eventType = entry.m_eventType;
923 *peTTnode = eTTnode;
924 }
925
926 // Fill all hash entries between entry.m_id and entry.m_lastId...
927 eTTnode->eventEntryTable.Add(&entry);
928}
929
930void wxEventHashTable::AllocEventTypeTable(size_t size)
931{
932 m_eventTypeTable = new EventTypeTablePointer[size];
933 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
934 m_size = size;
935}
936
937void wxEventHashTable::GrowEventTypeTable()
938{
939 size_t oldSize = m_size;
940 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
941
942 // TODO: Search the most optimal grow sequence
943 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
944
945 for ( size_t i = 0; i < oldSize; /* */ )
946 {
947 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
948 if (eTToldNode)
949 {
950 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
951 EventTypeTablePointer eTTnode = *peTTnode;
952
953 // Check for collision, we don't want any.
954 if (eTTnode)
955 {
956 GrowEventTypeTable();
957 continue; // Don't increment the counter,
958 // as we still need to add this element.
959 }
960 else
961 {
962 // Get the old value and put it in the new table.
963 *peTTnode = oldEventTypeTable[i];
964 }
965 }
966
967 i++;
968 }
969
970 delete[] oldEventTypeTable;
971}
972
973
974// ----------------------------------------------------------------------------
975// wxEvtHandler
976// ----------------------------------------------------------------------------
977
978/*
979 * Event handler
980 */
981
982wxEvtHandler::wxEvtHandler()
983{
984 m_nextHandler = (wxEvtHandler *) NULL;
985 m_previousHandler = (wxEvtHandler *) NULL;
986 m_enabled = true;
987 m_dynamicEvents = (wxList *) NULL;
988 m_pendingEvents = (wxList *) NULL;
989#if wxUSE_THREADS
990# if !defined(__VISAGECPP__)
991 m_eventsLocker = new wxCriticalSection;
992# endif
993#endif
994 // no client data (yet)
995 m_clientData = NULL;
996 m_clientDataType = wxClientData_None;
997}
998
999wxEvtHandler::~wxEvtHandler()
1000{
1001 // Takes itself out of the list of handlers
1002 if (m_previousHandler)
1003 m_previousHandler->m_nextHandler = m_nextHandler;
1004
1005 if (m_nextHandler)
1006 m_nextHandler->m_previousHandler = m_previousHandler;
1007
1008 if (m_dynamicEvents)
1009 {
1010 wxList::iterator it = m_dynamicEvents->begin(),
1011 en = m_dynamicEvents->end();
1012 for (;it != en; ++it)
1013 {
1014#if WXWIN_COMPATIBILITY_EVENT_TYPES
1015 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1016#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1017 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1018#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1019
1020 if (entry->m_callbackUserData)
1021 delete entry->m_callbackUserData;
1022 delete entry;
1023 }
1024 delete m_dynamicEvents;
1025 };
1026
1027 if (m_pendingEvents)
1028 m_pendingEvents->DeleteContents(true);
1029 delete m_pendingEvents;
1030
1031#if wxUSE_THREADS
1032# if !defined(__VISAGECPP__)
1033 delete m_eventsLocker;
1034# endif
1035
1036 // Remove us from wxPendingEvents if necessary.
1037 if(wxPendingEventsLocker)
1038 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1039 if ( wxPendingEvents )
1040 {
1041 // Delete all occurences of this from the list of pending events
1042 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1043 }
1044 if(wxPendingEventsLocker)
1045 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1046#endif
1047
1048 // we only delete object data, not untyped
1049 if ( m_clientDataType == wxClientData_Object )
1050 delete m_clientObject;
1051}
1052
1053#if wxUSE_THREADS
1054
1055bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1056{
1057 // check that we are really in a child thread
1058 wxASSERT_MSG( !wxThread::IsMain(),
1059 wxT("use ProcessEvent() in main thread") );
1060
1061 AddPendingEvent(event);
1062
1063 return true;
1064}
1065
1066void wxEvtHandler::ClearEventLocker()
1067{
1068#if !defined(__VISAGECPP__)
1069 delete m_eventsLocker;
1070 m_eventsLocker = NULL;
1071#endif
1072}
1073
1074#endif // wxUSE_THREADS
1075
1076void wxEvtHandler::AddPendingEvent(wxEvent& event)
1077{
1078 // 1) Add event to list of pending events of this event handler
1079
1080 wxEvent *eventCopy = event.Clone();
1081
1082 // we must be able to copy the events here so the event class must
1083 // implement Clone() properly instead of just providing a NULL stab for it
1084 wxCHECK_RET( eventCopy,
1085 _T("events of this type aren't supposed to be posted") );
1086
1087 wxENTER_CRIT_SECT( Lock() );
1088
1089 if ( !m_pendingEvents )
1090 m_pendingEvents = new wxList;
1091
1092 m_pendingEvents->Append(eventCopy);
1093
1094 wxLEAVE_CRIT_SECT( Lock() );
1095
1096 // 2) Add this event handler to list of event handlers that
1097 // have pending events.
1098
1099 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1100
1101 if ( !wxPendingEvents )
1102 wxPendingEvents = new wxList;
1103 wxPendingEvents->Append(this);
1104
1105 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1106
1107 // 3) Inform the system that new pending events are somewhere,
1108 // and that these should be processed in idle time.
1109 wxWakeUpIdle();
1110}
1111
1112void wxEvtHandler::ProcessPendingEvents()
1113{
1114 // this method is only called by wxApp if this handler does have pending
1115 // events
1116 wxCHECK_RET( m_pendingEvents,
1117 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1118
1119 wxENTER_CRIT_SECT( Lock() );
1120
1121 // we leave the loop once we have processed all events that were present at
1122 // the start of ProcessPendingEvents because otherwise we could get into
1123 // infinite loop if the pending event handler execution resulted in another
1124 // event being posted
1125 size_t n = m_pendingEvents->size();
1126 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1127 node;
1128 node = m_pendingEvents->GetFirst() )
1129 {
1130 wxEvent *event = (wxEvent *)node->GetData();
1131
1132 // It's importan we remove event from list before processing it.
1133 // Else a nested event loop, for example from a modal dialog, might
1134 // process the same event again.
1135 m_pendingEvents->Erase(node);
1136
1137 wxLEAVE_CRIT_SECT( Lock() );
1138
1139 ProcessEvent(*event);
1140 delete event;
1141
1142 wxENTER_CRIT_SECT( Lock() );
1143
1144 if ( --n == 0 )
1145 break;
1146 }
1147
1148 wxLEAVE_CRIT_SECT( Lock() );
1149}
1150
1151/*
1152 * Event table stuff
1153 */
1154/* static */ bool
1155wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1156 wxEvtHandler *handler,
1157 wxEvent& event)
1158{
1159 int tableId1 = entry.m_id,
1160 tableId2 = entry.m_lastId;
1161
1162 // match only if the event type is the same and the id is either -1 in
1163 // the event table (meaning "any") or the event id matches the id
1164 // specified in the event table either exactly or by falling into
1165 // range between first and last
1166 if ((tableId1 == wxID_ANY) ||
1167 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1168 (tableId2 != wxID_ANY &&
1169 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1170 {
1171 event.Skip(false);
1172 event.m_callbackUserData = entry.m_callbackUserData;
1173
1174#if wxUSE_EXCEPTIONS
1175 if ( wxTheApp )
1176 {
1177 // call the handler via wxApp method which allows the user to catch
1178 // any exceptions which may be thrown by any handler in the program
1179 // in one place
1180 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1181 }
1182 else
1183#endif // wxUSE_EXCEPTIONS
1184 {
1185 // no need for an extra virtual function call
1186 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1187 }
1188
1189 if (!event.GetSkipped())
1190 return true;
1191 }
1192
1193 return false;
1194}
1195
1196bool wxEvtHandler::TryParent(wxEvent& event)
1197{
1198 if ( wxTheApp && (this != wxTheApp) )
1199 {
1200 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1201 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1202 // processed appropriately via SearchEventTable.
1203 if ( event.GetEventType() != wxEVT_IDLE )
1204 {
1205 if ( wxTheApp->ProcessEvent(event) )
1206 return true;
1207 }
1208 }
1209
1210 return false;
1211}
1212
1213bool wxEvtHandler::ProcessEvent(wxEvent& event)
1214{
1215 // allow the application to hook into event processing
1216 if ( wxTheApp )
1217 {
1218 int rc = wxTheApp->FilterEvent(event);
1219 if ( rc != -1 )
1220 {
1221 wxASSERT_MSG( rc == 1 || rc == 0,
1222 _T("unexpected wxApp::FilterEvent return value") );
1223
1224 return rc != 0;
1225 }
1226 //else: proceed normally
1227 }
1228
1229 // An event handler can be enabled or disabled
1230 if ( GetEvtHandlerEnabled() )
1231 {
1232 // if we have a validator, it has higher priority than our own event
1233 // table
1234 if ( TryValidator(event) )
1235 return true;
1236
1237 // Handle per-instance dynamic event tables first
1238 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1239 return true;
1240
1241 // Then static per-class event tables
1242 if ( GetEventHashTable().HandleEvent(event, this) )
1243 return true;
1244 }
1245
1246 // Try going down the event handler chain
1247 if ( GetNextHandler() )
1248 {
1249 if ( GetNextHandler()->ProcessEvent(event) )
1250 return true;
1251 }
1252
1253 // Finally propagate the event upwards the window chain and/or to the
1254 // application object as necessary
1255 return TryParent(event);
1256}
1257
1258
1259bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1260{
1261 const wxEventType eventType = event.GetEventType();
1262 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1263 {
1264 const wxEventTableEntry& entry = table.entries[i];
1265 if ( eventType == entry.m_eventType )
1266 {
1267 if ( ProcessEventIfMatches(entry, this, event) )
1268 return true;
1269 }
1270 }
1271
1272 return false;
1273}
1274
1275void wxEvtHandler::Connect( int id, int lastId,
1276 int eventType,
1277 wxObjectEventFunction func,
1278 wxObject *userData,
1279 wxEvtHandler* eventSink )
1280{
1281#if WXWIN_COMPATIBILITY_EVENT_TYPES
1282 wxEventTableEntry *entry = new wxEventTableEntry;
1283 entry->m_eventType = eventType;
1284 entry->m_id = id;
1285 entry->m_lastId = lastId;
1286 entry->m_fn = func;
1287 entry->m_callbackUserData = userData;
1288#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1289 wxDynamicEventTableEntry *entry =
1290 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1291#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1292
1293 if (!m_dynamicEvents)
1294 m_dynamicEvents = new wxList;
1295
1296 // Insert at the front of the list so most recent additions are found first
1297 m_dynamicEvents->Insert( (wxObject*) entry );
1298}
1299
1300bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1301 wxObjectEventFunction func,
1302 wxObject *userData,
1303 wxEvtHandler* eventSink )
1304{
1305 if (!m_dynamicEvents)
1306 return false;
1307
1308 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1309 while (node)
1310 {
1311#if WXWIN_COMPATIBILITY_EVENT_TYPES
1312 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1313#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1314 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1315#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1316
1317 if ((entry->m_id == id) &&
1318 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1319 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1320 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1321 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1322 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1323 {
1324 if (entry->m_callbackUserData)
1325 delete entry->m_callbackUserData;
1326 m_dynamicEvents->Erase( node );
1327 delete entry;
1328 return true;
1329 }
1330 node = node->GetNext();
1331 }
1332 return false;
1333}
1334
1335bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1336{
1337 wxCHECK_MSG( m_dynamicEvents, false,
1338 wxT("caller should check that we have dynamic events") );
1339
1340 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1341 while (node)
1342 {
1343#if WXWIN_COMPATIBILITY_EVENT_TYPES
1344 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1345#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1346 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1347#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1348
1349 // get next node before (maybe) calling the event handler as it could
1350 // call Disconnect() invalidating the current node
1351 node = node->GetNext();
1352
1353 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1354 {
1355 wxEvtHandler *handler =
1356#if !WXWIN_COMPATIBILITY_EVENT_TYPES
1357 entry->m_eventSink ? entry->m_eventSink
1358 :
1359#endif
1360 this;
1361
1362 if ( ProcessEventIfMatches(*entry, handler, event) )
1363 {
1364 return true;
1365 }
1366 }
1367 }
1368
1369 return false;
1370}
1371
1372void wxEvtHandler::DoSetClientObject( wxClientData *data )
1373{
1374 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1375 wxT("can't have both object and void client data") );
1376
1377 if ( m_clientObject )
1378 delete m_clientObject;
1379
1380 m_clientObject = data;
1381 m_clientDataType = wxClientData_Object;
1382}
1383
1384wxClientData *wxEvtHandler::DoGetClientObject() const
1385{
1386 // it's not an error to call GetClientObject() on a window which doesn't
1387 // have client data at all - NULL will be returned
1388 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1389 wxT("this window doesn't have object client data") );
1390
1391 return m_clientObject;
1392}
1393
1394void wxEvtHandler::DoSetClientData( void *data )
1395{
1396 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1397 wxT("can't have both object and void client data") );
1398
1399 m_clientData = data;
1400 m_clientDataType = wxClientData_Void;
1401}
1402
1403void *wxEvtHandler::DoGetClientData() const
1404{
1405 // it's not an error to call GetClientData() on a window which doesn't have
1406 // client data at all - NULL will be returned
1407 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1408 wxT("this window doesn't have void client data") );
1409
1410 return m_clientData;
1411}
1412
1413#endif // wxUSE_BASE
1414
1415#if wxUSE_GUI
1416
1417// Find a window with the focus, that is also a descendant of the given window.
1418// This is used to determine the window to initially send commands to.
1419wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1420{
1421 // Process events starting with the window with the focus, if any.
1422 wxWindow* focusWin = wxWindow::FindFocus();
1423 wxWindow* win = focusWin;
1424
1425 // Check if this is a descendant of this frame.
1426 // If not, win will be set to NULL.
1427 while (win)
1428 {
1429 if (win == ancestor)
1430 break;
1431 else
1432 win = win->GetParent();
1433 }
1434 if (win == (wxWindow*) NULL)
1435 focusWin = (wxWindow*) NULL;
1436
1437 return focusWin;
1438}
1439
1440#endif // wxUSE_GUI
wxWidgets (Impactor)