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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)
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_MOUSE_CAPTURE_LOST)
264DEFINE_EVENT_TYPE(wxEVT_PAINT)
265DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
266DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
267DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
268DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
269DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
270DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
271DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
272DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
273DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
274DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
275DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
276DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
277DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
278DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
279DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
280DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
281DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
282DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
283DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
284DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
285DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
286DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
287
288// Clipboard events
289DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
290DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
291DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
292
293// Generic command events
294// Note: a click is a higher-level event than button down/up
295DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
296DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
297DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
298DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
299DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
300DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
301DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
302
303// Help events
304DEFINE_EVENT_TYPE(wxEVT_HELP)
305DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
306
307#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
308
309#endif // wxUSE_GUI
310
311#if wxUSE_BASE
312
313// ============================================================================
314// implementation
315// ============================================================================
316
317// ----------------------------------------------------------------------------
318// event initialization
319// ----------------------------------------------------------------------------
320
321int wxNewEventType()
322{
323 // MT-FIXME
324 static int s_lastUsedEventType = wxEVT_FIRST;
325
326 return s_lastUsedEventType++;
327}
328
329// ----------------------------------------------------------------------------
330// wxEvent
331// ----------------------------------------------------------------------------
332
333/*
334 * General wxWidgets events, covering
335 * all interesting things that might happen (button clicking, resizing,
336 * setting text in widgets, etc.).
337 *
338 * For each completely new event type, derive a new event class.
339 *
340 */
341
342wxEvent::wxEvent(int theId, wxEventType commandType )
343{
344 m_eventType = commandType;
345 m_eventObject = (wxObject *) NULL;
346 m_timeStamp = 0;
347 m_id = theId;
348 m_skipped = false;
349 m_callbackUserData = (wxObject *) NULL;
350 m_isCommandEvent = false;
351 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
352}
353
354wxEvent::wxEvent(const wxEvent &src)
355 : wxObject()
356 , m_eventObject(src.m_eventObject)
357 , m_eventType(src.m_eventType)
358 , m_timeStamp(src.m_timeStamp)
359 , m_id(src.m_id)
360 , m_callbackUserData(src.m_callbackUserData)
361 , m_propagationLevel(src.m_propagationLevel)
362 , m_skipped(src.m_skipped)
363 , m_isCommandEvent(src.m_isCommandEvent)
364{
365}
366
367#endif // wxUSE_BASE
368
369#if wxUSE_GUI
370
371/*
372 * Command events
373 *
374 */
375
376#ifdef __VISUALC__
377 // 'this' : used in base member initializer list (for m_commandString)
378 #pragma warning(disable:4355)
379#endif
380
381wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
382 : wxEvent(theId, commandType)
383#if WXWIN_COMPATIBILITY_2_4
384 , m_commandString(this)
385#endif
386{
387 m_clientData = (char *) NULL;
388 m_clientObject = (wxClientData *) NULL;
389 m_extraLong = 0;
390 m_commandInt = 0;
391 m_isCommandEvent = true;
392
393 // the command events are propagated upwards by default
394 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
395}
396
397#ifdef __VISUALC__
398 #pragma warning(default:4355)
399#endif
400
401wxString wxCommandEvent::GetString() const
402{
403 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
404 return m_cmdString;
405 else
406 {
407#if wxUSE_TEXTCTRL
408 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
409 if(txt)
410 return txt->GetValue();
411 else
412#endif // wxUSE_TEXTCTRL
413 return m_cmdString;
414 }
415}
416
417/*
418 * UI update events
419 */
420
421#if wxUSE_LONGLONG
422wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
423#endif
424
425long wxUpdateUIEvent::sm_updateInterval = 0;
426
427wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
428
429// Can we update?
430bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
431{
432 // Don't update if we've switched global updating off
433 // and this window doesn't support updates.
434 if (win &&
435 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
436 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
437 return false;
438
439 if (sm_updateInterval == -1)
440 return false;
441
442 if (sm_updateInterval == 0)
443 return true;
444
445#if wxUSE_STOPWATCH && wxUSE_LONGLONG
446 wxLongLong now = wxGetLocalTimeMillis();
447 if (now > (sm_lastUpdate + sm_updateInterval))
448 {
449 return true;
450 }
451
452 return false;
453#else
454 // If we don't have wxStopWatch or wxLongLong, we
455 // should err on the safe side and update now anyway.
456 return true;
457#endif
458}
459
460// Reset the update time to provide a delay until the next
461// time we should update
462void wxUpdateUIEvent::ResetUpdateTime()
463{
464#if wxUSE_STOPWATCH && wxUSE_LONGLONG
465 if (sm_updateInterval > 0)
466 {
467 wxLongLong now = wxGetLocalTimeMillis();
468 if (now > (sm_lastUpdate + sm_updateInterval))
469 {
470 sm_lastUpdate = now;
471 }
472 }
473#endif
474}
475
476/*
477 * Idle events
478 */
479
480wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
481
482// Can we send an idle event?
483bool wxIdleEvent::CanSend(wxWindow* win)
484{
485 // Don't update if we've switched global updating off
486 // and this window doesn't support updates.
487 if (win &&
488 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
489 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
490 return false;
491
492 return true;
493}
494
495/*
496 * Scroll events
497 */
498
499wxScrollEvent::wxScrollEvent(wxEventType commandType,
500 int id,
501 int pos,
502 int orient)
503 : wxCommandEvent(commandType, id)
504{
505 m_extraLong = orient;
506 m_commandInt = pos;
507}
508
509/*
510 * ScrollWin events
511 */
512
513wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
514 int pos,
515 int orient)
516{
517 m_eventType = commandType;
518 m_extraLong = orient;
519 m_commandInt = pos;
520}
521
522/*
523 * Mouse events
524 *
525 */
526
527wxMouseEvent::wxMouseEvent(wxEventType commandType)
528{
529 m_eventType = commandType;
530 m_metaDown = false;
531 m_altDown = false;
532 m_controlDown = false;
533 m_shiftDown = false;
534 m_leftDown = false;
535 m_rightDown = false;
536 m_middleDown = false;
537 m_x = 0;
538 m_y = 0;
539 m_wheelRotation = 0;
540 m_wheelDelta = 0;
541 m_linesPerAction = 0;
542}
543
544void wxMouseEvent::Assign(const wxMouseEvent& event)
545{
546 m_eventType = event.m_eventType;
547
548 m_x = event.m_x;
549 m_y = event.m_y;
550
551 m_leftDown = event.m_leftDown;
552 m_middleDown = event.m_middleDown;
553 m_rightDown = event.m_rightDown;
554
555 m_controlDown = event.m_controlDown;
556 m_shiftDown = event.m_shiftDown;
557 m_altDown = event.m_altDown;
558 m_metaDown = event.m_metaDown;
559
560 m_wheelRotation = event.m_wheelRotation;
561 m_wheelDelta = event.m_wheelDelta;
562 m_linesPerAction = event.m_linesPerAction;
563}
564
565// return true if was a button dclick event
566bool wxMouseEvent::ButtonDClick(int but) const
567{
568 switch (but)
569 {
570 default:
571 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
572 // fall through
573
574 case wxMOUSE_BTN_ANY:
575 return (LeftDClick() || MiddleDClick() || RightDClick());
576
577 case wxMOUSE_BTN_LEFT:
578 return LeftDClick();
579
580 case wxMOUSE_BTN_MIDDLE:
581 return MiddleDClick();
582
583 case wxMOUSE_BTN_RIGHT:
584 return RightDClick();
585 }
586}
587
588// return true if was a button down event
589bool wxMouseEvent::ButtonDown(int but) const
590{
591 switch (but)
592 {
593 default:
594 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
595 // fall through
596
597 case wxMOUSE_BTN_ANY:
598 return (LeftDown() || MiddleDown() || RightDown());
599
600 case wxMOUSE_BTN_LEFT:
601 return LeftDown();
602
603 case wxMOUSE_BTN_MIDDLE:
604 return MiddleDown();
605
606 case wxMOUSE_BTN_RIGHT:
607 return RightDown();
608 }
609}
610
611// return true if was a button up event
612bool wxMouseEvent::ButtonUp(int but) const
613{
614 switch (but)
615 {
616 default:
617 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
618 // fall through
619
620 case wxMOUSE_BTN_ANY:
621 return (LeftUp() || MiddleUp() || RightUp());
622
623 case wxMOUSE_BTN_LEFT:
624 return LeftUp();
625
626 case wxMOUSE_BTN_MIDDLE:
627 return MiddleUp();
628
629 case wxMOUSE_BTN_RIGHT:
630 return RightUp();
631 }
632}
633
634// return true if the given button is currently changing state
635bool wxMouseEvent::Button(int but) const
636{
637 switch (but)
638 {
639 default:
640 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
641 // fall through
642
643 case wxMOUSE_BTN_ANY:
644 return ButtonUp(wxMOUSE_BTN_ANY) ||
645 ButtonDown(wxMOUSE_BTN_ANY) ||
646 ButtonDClick(wxMOUSE_BTN_ANY);
647
648 case wxMOUSE_BTN_LEFT:
649 return LeftDown() || LeftUp() || LeftDClick();
650
651 case wxMOUSE_BTN_MIDDLE:
652 return MiddleDown() || MiddleUp() || MiddleDClick();
653
654 case wxMOUSE_BTN_RIGHT:
655 return RightDown() || RightUp() || RightDClick();
656 }
657}
658
659bool wxMouseEvent::ButtonIsDown(int but) const
660{
661 switch (but)
662 {
663 default:
664 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
665 // fall through
666
667 case wxMOUSE_BTN_ANY:
668 return LeftIsDown() || MiddleIsDown() || RightIsDown();
669
670 case wxMOUSE_BTN_LEFT:
671 return LeftIsDown();
672
673 case wxMOUSE_BTN_MIDDLE:
674 return MiddleIsDown();
675
676 case wxMOUSE_BTN_RIGHT:
677 return RightIsDown();
678 }
679}
680
681int wxMouseEvent::GetButton() const
682{
683 for ( int i = 1; i <= 3; i++ )
684 {
685 if ( Button(i) )
686 {
687 return i;
688 }
689 }
690
691 return wxMOUSE_BTN_NONE;
692}
693
694// Find the logical position of the event given the DC
695wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
696{
697 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
698 return pt;
699}
700
701
702/*
703 * Keyboard event
704 *
705 */
706
707wxKeyEvent::wxKeyEvent(wxEventType type)
708{
709 m_eventType = type;
710 m_shiftDown = false;
711 m_controlDown = false;
712 m_metaDown = false;
713 m_altDown = false;
714 m_keyCode = 0;
715 m_scanCode = 0;
716#if wxUSE_UNICODE
717 m_uniChar = 0;
718#endif
719}
720
721wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
722 : wxEvent(evt)
723{
724 m_x = evt.m_x;
725 m_y = evt.m_y;
726
727 m_keyCode = evt.m_keyCode;
728
729 m_controlDown = evt.m_controlDown;
730 m_shiftDown = evt.m_shiftDown;
731 m_altDown = evt.m_altDown;
732 m_metaDown = evt.m_metaDown;
733 m_scanCode = evt.m_scanCode;
734 m_rawCode = evt.m_rawCode;
735 m_rawFlags = evt.m_rawFlags;
736
737#if wxUSE_UNICODE
738 m_uniChar = evt.m_uniChar;
739#endif
740}
741
742#if WXWIN_COMPATIBILITY_2_6
743long wxKeyEvent::KeyCode() const
744{
745 return m_keyCode;
746}
747#endif // WXWIN_COMPATIBILITY_2_6
748
749wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
750{
751 SetEventType(wxEVT_CREATE);
752 SetEventObject(win);
753}
754
755wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
756{
757 SetEventType(wxEVT_DESTROY);
758 SetEventObject(win);
759}
760
761wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
762 : wxCommandEvent(wxEVT_CHILD_FOCUS)
763{
764 SetEventObject(win);
765}
766
767// ----------------------------------------------------------------------------
768// wxHelpEvent
769// ----------------------------------------------------------------------------
770
771/* static */
772wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
773{
774 if ( origin == Origin_Unknown )
775 {
776 // assume that the event comes from the help button if it's not from
777 // keyboard and that pressing F1 always results in the help event
778 origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
779 }
780
781 return origin;
782}
783
784#endif // wxUSE_GUI
785
786
787#if wxUSE_BASE
788
789// ----------------------------------------------------------------------------
790// wxEventHashTable
791// ----------------------------------------------------------------------------
792
793static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
794
795wxEventHashTable* wxEventHashTable::sm_first = NULL;
796
797wxEventHashTable::wxEventHashTable(const wxEventTable &table)
798 : m_table(table),
799 m_rebuildHash(true)
800{
801 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
802
803 m_next = sm_first;
804 if (m_next)
805 m_next->m_previous = this;
806 sm_first = this;
807}
808
809wxEventHashTable::~wxEventHashTable()
810{
811 if (m_next)
812 m_next->m_previous = m_previous;
813 if (m_previous)
814 m_previous->m_next = m_next;
815 if (sm_first == this)
816 sm_first = m_next;
817
818 Clear();
819}
820
821void wxEventHashTable::Clear()
822{
823 size_t i;
824 for(i = 0; i < m_size; i++)
825 {
826 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
827 if (eTTnode)
828 {
829 delete eTTnode;
830 }
831 }
832
833 // Necessary in order to not invoke the
834 // overloaded delete operator when statics are cleaned up
835 if (m_eventTypeTable)
836 delete[] m_eventTypeTable;
837
838 m_eventTypeTable = NULL;
839 m_size = 0;
840}
841
842// Clear all tables
843void wxEventHashTable::ClearAll()
844{
845 wxEventHashTable* table = sm_first;
846 while (table)
847 {
848 table->Clear();
849 table = table->m_next;
850 }
851}
852
853bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
854{
855 if (m_rebuildHash)
856 {
857 InitHashTable();
858 m_rebuildHash = false;
859 }
860
861 if (!m_eventTypeTable)
862 return false;
863
864 // Find all entries for the given event type.
865 wxEventType eventType = event.GetEventType();
866 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
867 if (eTTnode && eTTnode->eventType == eventType)
868 {
869 // Now start the search for an event handler
870 // that can handle an event with the given ID.
871 const wxEventTableEntryPointerArray&
872 eventEntryTable = eTTnode->eventEntryTable;
873
874 const size_t count = eventEntryTable.GetCount();
875 for (size_t n = 0; n < count; n++)
876 {
877 if ( wxEvtHandler::
878 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
879 {
880 return true;
881 }
882 }
883 }
884
885 return false;
886}
887
888void wxEventHashTable::InitHashTable()
889{
890 // Loop over the event tables and all its base tables.
891 const wxEventTable *table = &m_table;
892 while (table)
893 {
894 // Retrieve all valid event handler entries
895 const wxEventTableEntry *entry = table->entries;
896 while (entry->m_fn != 0)
897 {
898 // Add the event entry in the Hash.
899 AddEntry(*entry);
900
901 entry++;
902 }
903
904 table = table->baseTable;
905 }
906
907 // Lets free some memory.
908 size_t i;
909 for(i = 0; i < m_size; i++)
910 {
911 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
912 if (eTTnode)
913 {
914 eTTnode->eventEntryTable.Shrink();
915 }
916 }
917}
918
919void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
920{
921 // This might happen 'accidentally' as the app is exiting
922 if (!m_eventTypeTable)
923 return;
924
925 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
926 EventTypeTablePointer eTTnode = *peTTnode;
927
928 if (eTTnode)
929 {
930 if (eTTnode->eventType != entry.m_eventType)
931 {
932 // Resize the table!
933 GrowEventTypeTable();
934 // Try again to add it.
935 AddEntry(entry);
936 return;
937 }
938 }
939 else
940 {
941 eTTnode = new EventTypeTable;
942 eTTnode->eventType = entry.m_eventType;
943 *peTTnode = eTTnode;
944 }
945
946 // Fill all hash entries between entry.m_id and entry.m_lastId...
947 eTTnode->eventEntryTable.Add(&entry);
948}
949
950void wxEventHashTable::AllocEventTypeTable(size_t size)
951{
952 m_eventTypeTable = new EventTypeTablePointer[size];
953 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
954 m_size = size;
955}
956
957void wxEventHashTable::GrowEventTypeTable()
958{
959 size_t oldSize = m_size;
960 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
961
962 // TODO: Search the most optimal grow sequence
963 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
964
965 for ( size_t i = 0; i < oldSize; /* */ )
966 {
967 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
968 if (eTToldNode)
969 {
970 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
971 EventTypeTablePointer eTTnode = *peTTnode;
972
973 // Check for collision, we don't want any.
974 if (eTTnode)
975 {
976 GrowEventTypeTable();
977 continue; // Don't increment the counter,
978 // as we still need to add this element.
979 }
980 else
981 {
982 // Get the old value and put it in the new table.
983 *peTTnode = oldEventTypeTable[i];
984 }
985 }
986
987 i++;
988 }
989
990 delete[] oldEventTypeTable;
991}
992
993
994// ----------------------------------------------------------------------------
995// wxEvtHandler
996// ----------------------------------------------------------------------------
997
998/*
999 * Event handler
1000 */
1001
1002wxEvtHandler::wxEvtHandler()
1003{
1004 m_nextHandler = (wxEvtHandler *) NULL;
1005 m_previousHandler = (wxEvtHandler *) NULL;
1006 m_enabled = true;
1007 m_dynamicEvents = (wxList *) NULL;
1008 m_pendingEvents = (wxList *) NULL;
1009#if wxUSE_THREADS
1010# if !defined(__VISAGECPP__)
1011 m_eventsLocker = new wxCriticalSection;
1012# endif
1013#endif
1014
1015 // no client data (yet)
1016 m_clientData = NULL;
1017 m_clientDataType = wxClientData_None;
1018}
1019
1020wxEvtHandler::~wxEvtHandler()
1021{
1022 // Takes itself out of the list of handlers
1023 if (m_previousHandler)
1024 m_previousHandler->m_nextHandler = m_nextHandler;
1025
1026 if (m_nextHandler)
1027 m_nextHandler->m_previousHandler = m_previousHandler;
1028
1029 if (m_dynamicEvents)
1030 {
1031 wxList::iterator it = m_dynamicEvents->begin(),
1032 en = m_dynamicEvents->end();
1033 for (;it != en; ++it)
1034 {
1035#if WXWIN_COMPATIBILITY_EVENT_TYPES
1036 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1037#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1038 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1039#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1040
1041 if (entry->m_callbackUserData)
1042 delete entry->m_callbackUserData;
1043 delete entry;
1044 }
1045 delete m_dynamicEvents;
1046 };
1047
1048 if (m_pendingEvents)
1049 m_pendingEvents->DeleteContents(true);
1050 delete m_pendingEvents;
1051
1052#if wxUSE_THREADS
1053# if !defined(__VISAGECPP__)
1054 delete m_eventsLocker;
1055# endif
1056
1057 // Remove us from wxPendingEvents if necessary.
1058 if(wxPendingEventsLocker)
1059 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1060 if ( wxPendingEvents )
1061 {
1062 // Delete all occurences of this from the list of pending events
1063 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1064 }
1065 if(wxPendingEventsLocker)
1066 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1067#endif
1068
1069 // we only delete object data, not untyped
1070 if ( m_clientDataType == wxClientData_Object )
1071 delete m_clientObject;
1072}
1073
1074#if wxUSE_THREADS
1075
1076bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1077{
1078 // check that we are really in a child thread
1079 wxASSERT_MSG( !wxThread::IsMain(),
1080 wxT("use ProcessEvent() in main thread") );
1081
1082 AddPendingEvent(event);
1083
1084 return true;
1085}
1086
1087void wxEvtHandler::ClearEventLocker()
1088{
1089#if !defined(__VISAGECPP__)
1090 delete m_eventsLocker;
1091 m_eventsLocker = NULL;
1092#endif
1093}
1094
1095#endif // wxUSE_THREADS
1096
1097void wxEvtHandler::AddPendingEvent(wxEvent& event)
1098{
1099 // 1) Add event to list of pending events of this event handler
1100
1101 wxEvent *eventCopy = event.Clone();
1102
1103 // we must be able to copy the events here so the event class must
1104 // implement Clone() properly instead of just providing a NULL stab for it
1105 wxCHECK_RET( eventCopy,
1106 _T("events of this type aren't supposed to be posted") );
1107
1108 wxENTER_CRIT_SECT( Lock() );
1109
1110 if ( !m_pendingEvents )
1111 m_pendingEvents = new wxList;
1112
1113 m_pendingEvents->Append(eventCopy);
1114
1115 wxLEAVE_CRIT_SECT( Lock() );
1116
1117 // 2) Add this event handler to list of event handlers that
1118 // have pending events.
1119
1120 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1121
1122 if ( !wxPendingEvents )
1123 wxPendingEvents = new wxList;
1124 wxPendingEvents->Append(this);
1125
1126 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1127
1128 // 3) Inform the system that new pending events are somewhere,
1129 // and that these should be processed in idle time.
1130 wxWakeUpIdle();
1131}
1132
1133void wxEvtHandler::ProcessPendingEvents()
1134{
1135 // this method is only called by wxApp if this handler does have
1136 // pending events
1137 wxCHECK_RET( m_pendingEvents,
1138 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1139
1140 wxENTER_CRIT_SECT( Lock() );
1141
1142 // we leave the loop once we have processed all events that were present at
1143 // the start of ProcessPendingEvents because otherwise we could get into
1144 // infinite loop if the pending event handler execution resulted in another
1145 // event being posted
1146 size_t n = m_pendingEvents->size();
1147 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1148 node;
1149 node = m_pendingEvents->GetFirst() )
1150 {
1151 wxEvent *event = (wxEvent *)node->GetData();
1152
1153 // It's importan we remove event from list before processing it.
1154 // Else a nested event loop, for example from a modal dialog, might
1155 // process the same event again.
1156
1157 m_pendingEvents->Erase(node);
1158
1159 wxLEAVE_CRIT_SECT( Lock() );
1160
1161 ProcessEvent(*event);
1162
1163 delete event;
1164
1165 wxENTER_CRIT_SECT( Lock() );
1166
1167 if ( --n == 0 )
1168 break;
1169 }
1170
1171 wxLEAVE_CRIT_SECT( Lock() );
1172}
1173
1174/*
1175 * Event table stuff
1176 */
1177/* static */ bool
1178wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1179 wxEvtHandler *handler,
1180 wxEvent& event)
1181{
1182 int tableId1 = entry.m_id,
1183 tableId2 = entry.m_lastId;
1184
1185 // match only if the event type is the same and the id is either -1 in
1186 // the event table (meaning "any") or the event id matches the id
1187 // specified in the event table either exactly or by falling into
1188 // range between first and last
1189 if ((tableId1 == wxID_ANY) ||
1190 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1191 (tableId2 != wxID_ANY &&
1192 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1193 {
1194 event.Skip(false);
1195 event.m_callbackUserData = entry.m_callbackUserData;
1196
1197#if wxUSE_EXCEPTIONS
1198 if ( wxTheApp )
1199 {
1200 // call the handler via wxApp method which allows the user to catch
1201 // any exceptions which may be thrown by any handler in the program
1202 // in one place
1203 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1204 }
1205 else
1206#endif // wxUSE_EXCEPTIONS
1207 {
1208 // no need for an extra virtual function call
1209 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1210 }
1211
1212 if (!event.GetSkipped())
1213 return true;
1214 }
1215
1216 return false;
1217}
1218
1219bool wxEvtHandler::TryParent(wxEvent& event)
1220{
1221 if ( wxTheApp && (this != wxTheApp) )
1222 {
1223 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1224 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1225 // processed appropriately via SearchEventTable.
1226 if ( event.GetEventType() != wxEVT_IDLE )
1227 {
1228 if ( wxTheApp->ProcessEvent(event) )
1229 return true;
1230 }
1231 }
1232
1233 return false;
1234}
1235
1236bool wxEvtHandler::ProcessEvent(wxEvent& event)
1237{
1238 // allow the application to hook into event processing
1239 if ( wxTheApp )
1240 {
1241 int rc = wxTheApp->FilterEvent(event);
1242 if ( rc != -1 )
1243 {
1244 wxASSERT_MSG( rc == 1 || rc == 0,
1245 _T("unexpected wxApp::FilterEvent return value") );
1246
1247 return rc != 0;
1248 }
1249 //else: proceed normally
1250 }
1251
1252 // An event handler can be enabled or disabled
1253 if ( GetEvtHandlerEnabled() )
1254 {
1255 // if we have a validator, it has higher priority than our own event
1256 // table
1257 if ( TryValidator(event) )
1258 return true;
1259
1260 // Handle per-instance dynamic event tables first
1261 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1262 return true;
1263
1264 // Then static per-class event tables
1265 if ( GetEventHashTable().HandleEvent(event, this) )
1266 return true;
1267 }
1268
1269 // Try going down the event handler chain
1270 if ( GetNextHandler() )
1271 {
1272 if ( GetNextHandler()->ProcessEvent(event) )
1273 return true;
1274 }
1275
1276 // Finally propagate the event upwards the window chain and/or to the
1277 // application object as necessary
1278 return TryParent(event);
1279}
1280
1281
1282bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1283{
1284 const wxEventType eventType = event.GetEventType();
1285 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1286 {
1287 const wxEventTableEntry& entry = table.entries[i];
1288 if ( eventType == entry.m_eventType )
1289 {
1290 if ( ProcessEventIfMatches(entry, this, event) )
1291 return true;
1292 }
1293 }
1294
1295 return false;
1296}
1297
1298void wxEvtHandler::Connect( int id, int lastId,
1299 int eventType,
1300 wxObjectEventFunction func,
1301 wxObject *userData,
1302 wxEvtHandler* eventSink )
1303{
1304#if WXWIN_COMPATIBILITY_EVENT_TYPES
1305 wxEventTableEntry *entry = new wxEventTableEntry;
1306 entry->m_eventType = eventType;
1307 entry->m_id = id;
1308 entry->m_lastId = lastId;
1309 entry->m_fn = func;
1310 entry->m_callbackUserData = userData;
1311#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1312 wxDynamicEventTableEntry *entry =
1313 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1314#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1315
1316 if (!m_dynamicEvents)
1317 m_dynamicEvents = new wxList;
1318
1319 // Insert at the front of the list so most recent additions are found first
1320 m_dynamicEvents->Insert( (wxObject*) entry );
1321}
1322
1323bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1324 wxObjectEventFunction func,
1325 wxObject *userData,
1326 wxEvtHandler* eventSink )
1327{
1328 if (!m_dynamicEvents)
1329 return false;
1330
1331 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1332 while (node)
1333 {
1334#if WXWIN_COMPATIBILITY_EVENT_TYPES
1335 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1336#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1337 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1338#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1339
1340 if ((entry->m_id == id) &&
1341 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1342 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1343 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1344 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1345 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1346 {
1347 if (entry->m_callbackUserData)
1348 delete entry->m_callbackUserData;
1349 m_dynamicEvents->Erase( node );
1350 delete entry;
1351 return true;
1352 }
1353 node = node->GetNext();
1354 }
1355 return false;
1356}
1357
1358bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1359{
1360 wxCHECK_MSG( m_dynamicEvents, false,
1361 wxT("caller should check that we have dynamic events") );
1362
1363 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1364 while (node)
1365 {
1366#if WXWIN_COMPATIBILITY_EVENT_TYPES
1367 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1368#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1369 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1370#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1371
1372 // get next node before (maybe) calling the event handler as it could
1373 // call Disconnect() invalidating the current node
1374 node = node->GetNext();
1375
1376 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1377 {
1378 wxEvtHandler *handler =
1379#if !WXWIN_COMPATIBILITY_EVENT_TYPES
1380 entry->m_eventSink ? entry->m_eventSink
1381 :
1382#endif
1383 this;
1384
1385 if ( ProcessEventIfMatches(*entry, handler, event) )
1386 {
1387 return true;
1388 }
1389 }
1390 }
1391
1392 return false;
1393}
1394
1395void wxEvtHandler::DoSetClientObject( wxClientData *data )
1396{
1397 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1398 wxT("can't have both object and void client data") );
1399
1400 if ( m_clientObject )
1401 delete m_clientObject;
1402
1403 m_clientObject = data;
1404 m_clientDataType = wxClientData_Object;
1405}
1406
1407wxClientData *wxEvtHandler::DoGetClientObject() const
1408{
1409 // it's not an error to call GetClientObject() on a window which doesn't
1410 // have client data at all - NULL will be returned
1411 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1412 wxT("this window doesn't have object client data") );
1413
1414 return m_clientObject;
1415}
1416
1417void wxEvtHandler::DoSetClientData( void *data )
1418{
1419 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1420 wxT("can't have both object and void client data") );
1421
1422 m_clientData = data;
1423 m_clientDataType = wxClientData_Void;
1424}
1425
1426void *wxEvtHandler::DoGetClientData() const
1427{
1428 // it's not an error to call GetClientData() on a window which doesn't have
1429 // client data at all - NULL will be returned
1430 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1431 wxT("this window doesn't have void client data") );
1432
1433 return m_clientData;
1434}
1435
1436#endif // wxUSE_BASE
1437
1438#if wxUSE_GUI
1439
1440// Find a window with the focus, that is also a descendant of the given window.
1441// This is used to determine the window to initially send commands to.
1442wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1443{
1444 // Process events starting with the window with the focus, if any.
1445 wxWindow* focusWin = wxWindow::FindFocus();
1446 wxWindow* win = focusWin;
1447
1448 // Check if this is a descendant of this frame.
1449 // If not, win will be set to NULL.
1450 while (win)
1451 {
1452 if (win == ancestor)
1453 break;
1454 else
1455 win = win->GetParent();
1456 }
1457 if (win == (wxWindow*) NULL)
1458 focusWin = (wxWindow*) NULL;
1459
1460 return focusWin;
1461}
1462
1463#endif // wxUSE_GUI
wxWidgets (Impactor)