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