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Implemented wxTextAttrEx::CombineEx and wxRichTextAttr::Combine
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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
34 #if wxUSE_GUI
35 #include "wx/control.h"
36 #include "wx/dc.h"
37 #include "wx/textctrl.h"
38 #include "wx/validate.h"
39 #endif // wxUSE_GUI
40#endif
41
42#include "wx/module.h"
43
44#if wxUSE_GUI && wxUSE_STOPWATCH
45 #include "wx/stopwatch.h"
46#endif // wxUSE_GUI && wxUSE_STOPWATCH
47
48// ----------------------------------------------------------------------------
49// wxWin macros
50// ----------------------------------------------------------------------------
51
52#if wxUSE_BASE
53 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
54 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
55#endif // wxUSE_BASE
56
57#if wxUSE_GUI
58 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
59 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
60 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
61 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
62 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
63 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
64 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
65 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
66 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
67 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
68 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
69 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
70 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
91 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
92 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
93 IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
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// Clipboard events
291DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
292DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
293DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
294
295// Generic command events
296// Note: a click is a higher-level event than button down/up
297DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
298DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
299DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
300DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
301DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
302DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
303DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
304
305// Help events
306DEFINE_EVENT_TYPE(wxEVT_HELP)
307DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
308
309#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
310
311#endif // wxUSE_GUI
312
313#if wxUSE_BASE
314
315// ============================================================================
316// implementation
317// ============================================================================
318
319// ----------------------------------------------------------------------------
320// event initialization
321// ----------------------------------------------------------------------------
322
323int wxNewEventType()
324{
325 // MT-FIXME
326 static int s_lastUsedEventType = wxEVT_FIRST;
327
328 return s_lastUsedEventType++;
329}
330
331// ----------------------------------------------------------------------------
332// wxEvent
333// ----------------------------------------------------------------------------
334
335/*
336 * General wxWidgets events, covering
337 * all interesting things that might happen (button clicking, resizing,
338 * setting text in widgets, etc.).
339 *
340 * For each completely new event type, derive a new event class.
341 *
342 */
343
344wxEvent::wxEvent(int theId, wxEventType commandType )
345{
346 m_eventType = commandType;
347 m_eventObject = (wxObject *) NULL;
348 m_timeStamp = 0;
349 m_id = theId;
350 m_skipped = false;
351 m_callbackUserData = (wxObject *) NULL;
352 m_isCommandEvent = false;
353 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
354}
355
356wxEvent::wxEvent(const wxEvent &src)
357 : wxObject()
358 , m_eventObject(src.m_eventObject)
359 , m_eventType(src.m_eventType)
360 , m_timeStamp(src.m_timeStamp)
361 , m_id(src.m_id)
362 , m_callbackUserData(src.m_callbackUserData)
363 , m_propagationLevel(src.m_propagationLevel)
364 , m_skipped(src.m_skipped)
365 , m_isCommandEvent(src.m_isCommandEvent)
366{
367}
368
369#endif // wxUSE_BASE
370
371#if wxUSE_GUI
372
373/*
374 * Command events
375 *
376 */
377
378#ifdef __VISUALC__
379 // 'this' : used in base member initializer list (for m_commandString)
380 #pragma warning(disable:4355)
381#endif
382
383wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
384 : wxEvent(theId, commandType)
385#if WXWIN_COMPATIBILITY_2_4
386 , m_commandString(this)
387#endif
388{
389 m_clientData = (char *) NULL;
390 m_clientObject = (wxClientData *) NULL;
391 m_extraLong = 0;
392 m_commandInt = 0;
393 m_isCommandEvent = true;
394
395 // the command events are propagated upwards by default
396 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
397}
398
399#ifdef __VISUALC__
400 #pragma warning(default:4355)
401#endif
402
403wxString wxCommandEvent::GetString() const
404{
405 if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
406 return m_cmdString;
407 else
408 {
409#if wxUSE_TEXTCTRL
410 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
411 if(txt)
412 return txt->GetValue();
413 else
414#endif // wxUSE_TEXTCTRL
415 return m_cmdString;
416 }
417}
418
419/*
420 * UI update events
421 */
422
423#if wxUSE_LONGLONG
424wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
425#endif
426
427long wxUpdateUIEvent::sm_updateInterval = 0;
428
429wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
430
431// Can we update?
432bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
433{
434 // Don't update if we've switched global updating off
435 // and this window doesn't support updates.
436 if (win &&
437 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
438 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
439 return false;
440
441 if (sm_updateInterval == -1)
442 return false;
443
444 if (sm_updateInterval == 0)
445 return true;
446
447#if wxUSE_STOPWATCH && wxUSE_LONGLONG
448 wxLongLong now = wxGetLocalTimeMillis();
449 if (now > (sm_lastUpdate + sm_updateInterval))
450 {
451 return true;
452 }
453
454 return false;
455#else
456 // If we don't have wxStopWatch or wxLongLong, we
457 // should err on the safe side and update now anyway.
458 return true;
459#endif
460}
461
462// Reset the update time to provide a delay until the next
463// time we should update
464void wxUpdateUIEvent::ResetUpdateTime()
465{
466#if wxUSE_STOPWATCH && wxUSE_LONGLONG
467 if (sm_updateInterval > 0)
468 {
469 wxLongLong now = wxGetLocalTimeMillis();
470 if (now > (sm_lastUpdate + sm_updateInterval))
471 {
472 sm_lastUpdate = now;
473 }
474 }
475#endif
476}
477
478/*
479 * Idle events
480 */
481
482wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
483
484// Can we send an idle event?
485bool wxIdleEvent::CanSend(wxWindow* win)
486{
487 // Don't update if we've switched global updating off
488 // and this window doesn't support updates.
489 if (win &&
490 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
491 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
492 return false;
493
494 return true;
495}
496
497/*
498 * Scroll events
499 */
500
501wxScrollEvent::wxScrollEvent(wxEventType commandType,
502 int id,
503 int pos,
504 int orient)
505 : wxCommandEvent(commandType, id)
506{
507 m_extraLong = orient;
508 m_commandInt = pos;
509}
510
511/*
512 * ScrollWin events
513 */
514
515wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
516 int pos,
517 int orient)
518{
519 m_eventType = commandType;
520 m_extraLong = orient;
521 m_commandInt = pos;
522}
523
524/*
525 * Mouse events
526 *
527 */
528
529wxMouseEvent::wxMouseEvent(wxEventType commandType)
530{
531 m_eventType = commandType;
532 m_metaDown = false;
533 m_altDown = false;
534 m_controlDown = false;
535 m_shiftDown = false;
536 m_leftDown = false;
537 m_rightDown = false;
538 m_middleDown = false;
539 m_x = 0;
540 m_y = 0;
541 m_wheelRotation = 0;
542 m_wheelDelta = 0;
543 m_linesPerAction = 0;
544}
545
546void wxMouseEvent::Assign(const wxMouseEvent& event)
547{
548 m_eventType = event.m_eventType;
549
550 m_x = event.m_x;
551 m_y = event.m_y;
552
553 m_leftDown = event.m_leftDown;
554 m_middleDown = event.m_middleDown;
555 m_rightDown = event.m_rightDown;
556
557 m_controlDown = event.m_controlDown;
558 m_shiftDown = event.m_shiftDown;
559 m_altDown = event.m_altDown;
560 m_metaDown = event.m_metaDown;
561
562 m_wheelRotation = event.m_wheelRotation;
563 m_wheelDelta = event.m_wheelDelta;
564 m_linesPerAction = event.m_linesPerAction;
565}
566
567// return true if was a button dclick event
568bool wxMouseEvent::ButtonDClick(int but) const
569{
570 switch (but)
571 {
572 default:
573 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
574 // fall through
575
576 case wxMOUSE_BTN_ANY:
577 return (LeftDClick() || MiddleDClick() || RightDClick());
578
579 case wxMOUSE_BTN_LEFT:
580 return LeftDClick();
581
582 case wxMOUSE_BTN_MIDDLE:
583 return MiddleDClick();
584
585 case wxMOUSE_BTN_RIGHT:
586 return RightDClick();
587 }
588}
589
590// return true if was a button down event
591bool wxMouseEvent::ButtonDown(int but) const
592{
593 switch (but)
594 {
595 default:
596 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
597 // fall through
598
599 case wxMOUSE_BTN_ANY:
600 return (LeftDown() || MiddleDown() || RightDown());
601
602 case wxMOUSE_BTN_LEFT:
603 return LeftDown();
604
605 case wxMOUSE_BTN_MIDDLE:
606 return MiddleDown();
607
608 case wxMOUSE_BTN_RIGHT:
609 return RightDown();
610 }
611}
612
613// return true if was a button up event
614bool wxMouseEvent::ButtonUp(int but) const
615{
616 switch (but)
617 {
618 default:
619 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
620 // fall through
621
622 case wxMOUSE_BTN_ANY:
623 return (LeftUp() || MiddleUp() || RightUp());
624
625 case wxMOUSE_BTN_LEFT:
626 return LeftUp();
627
628 case wxMOUSE_BTN_MIDDLE:
629 return MiddleUp();
630
631 case wxMOUSE_BTN_RIGHT:
632 return RightUp();
633 }
634}
635
636// return true if the given button is currently changing state
637bool wxMouseEvent::Button(int but) const
638{
639 switch (but)
640 {
641 default:
642 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
643 // fall through
644
645 case wxMOUSE_BTN_ANY:
646 return ButtonUp(wxMOUSE_BTN_ANY) ||
647 ButtonDown(wxMOUSE_BTN_ANY) ||
648 ButtonDClick(wxMOUSE_BTN_ANY);
649
650 case wxMOUSE_BTN_LEFT:
651 return LeftDown() || LeftUp() || LeftDClick();
652
653 case wxMOUSE_BTN_MIDDLE:
654 return MiddleDown() || MiddleUp() || MiddleDClick();
655
656 case wxMOUSE_BTN_RIGHT:
657 return RightDown() || RightUp() || RightDClick();
658 }
659}
660
661bool wxMouseEvent::ButtonIsDown(int but) const
662{
663 switch (but)
664 {
665 default:
666 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
667 // fall through
668
669 case wxMOUSE_BTN_ANY:
670 return LeftIsDown() || MiddleIsDown() || RightIsDown();
671
672 case wxMOUSE_BTN_LEFT:
673 return LeftIsDown();
674
675 case wxMOUSE_BTN_MIDDLE:
676 return MiddleIsDown();
677
678 case wxMOUSE_BTN_RIGHT:
679 return RightIsDown();
680 }
681}
682
683int wxMouseEvent::GetButton() const
684{
685 for ( int i = 1; i <= 3; i++ )
686 {
687 if ( Button(i) )
688 {
689 return i;
690 }
691 }
692
693 return wxMOUSE_BTN_NONE;
694}
695
696// Find the logical position of the event given the DC
697wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
698{
699 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
700 return pt;
701}
702
703
704/*
705 * Keyboard event
706 *
707 */
708
709wxKeyEvent::wxKeyEvent(wxEventType type)
710{
711 m_eventType = type;
712 m_shiftDown = false;
713 m_controlDown = false;
714 m_metaDown = false;
715 m_altDown = false;
716 m_keyCode = 0;
717 m_scanCode = 0;
718#if wxUSE_UNICODE
719 m_uniChar = 0;
720#endif
721}
722
723wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
724 : wxEvent(evt)
725{
726 m_x = evt.m_x;
727 m_y = evt.m_y;
728
729 m_keyCode = evt.m_keyCode;
730
731 m_controlDown = evt.m_controlDown;
732 m_shiftDown = evt.m_shiftDown;
733 m_altDown = evt.m_altDown;
734 m_metaDown = evt.m_metaDown;
735 m_scanCode = evt.m_scanCode;
736 m_rawCode = evt.m_rawCode;
737 m_rawFlags = evt.m_rawFlags;
738
739#if wxUSE_UNICODE
740 m_uniChar = evt.m_uniChar;
741#endif
742}
743
744#if WXWIN_COMPATIBILITY_2_6
745long wxKeyEvent::KeyCode() const
746{
747 return m_keyCode;
748}
749#endif // WXWIN_COMPATIBILITY_2_6
750
751wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
752{
753 SetEventType(wxEVT_CREATE);
754 SetEventObject(win);
755}
756
757wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
758{
759 SetEventType(wxEVT_DESTROY);
760 SetEventObject(win);
761}
762
763wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
764 : wxCommandEvent(wxEVT_CHILD_FOCUS)
765{
766 SetEventObject(win);
767}
768
769// ----------------------------------------------------------------------------
770// wxHelpEvent
771// ----------------------------------------------------------------------------
772
773/* static */
774wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
775{
776 if ( origin == Origin_Unknown )
777 {
778 // assume that the event comes from the help button if it's not from
779 // keyboard and that pressing F1 always results in the help event
780 origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
781 }
782
783 return origin;
784}
785
786#endif // wxUSE_GUI
787
788
789#if wxUSE_BASE
790
791// ----------------------------------------------------------------------------
792// wxEventHashTable
793// ----------------------------------------------------------------------------
794
795static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
796
797wxEventHashTable* wxEventHashTable::sm_first = NULL;
798
799wxEventHashTable::wxEventHashTable(const wxEventTable &table)
800 : m_table(table),
801 m_rebuildHash(true)
802{
803 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
804
805 m_next = sm_first;
806 if (m_next)
807 m_next->m_previous = this;
808 sm_first = this;
809}
810
811wxEventHashTable::~wxEventHashTable()
812{
813 if (m_next)
814 m_next->m_previous = m_previous;
815 if (m_previous)
816 m_previous->m_next = m_next;
817 if (sm_first == this)
818 sm_first = m_next;
819
820 Clear();
821}
822
823void wxEventHashTable::Clear()
824{
825 size_t i;
826 for(i = 0; i < m_size; i++)
827 {
828 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
829 if (eTTnode)
830 {
831 delete eTTnode;
832 }
833 }
834
835 // Necessary in order to not invoke the
836 // overloaded delete operator when statics are cleaned up
837 if (m_eventTypeTable)
838 delete[] m_eventTypeTable;
839
840 m_eventTypeTable = NULL;
841 m_size = 0;
842}
843
844// Clear all tables
845void wxEventHashTable::ClearAll()
846{
847 wxEventHashTable* table = sm_first;
848 while (table)
849 {
850 table->Clear();
851 table = table->m_next;
852 }
853}
854
855bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
856{
857 if (m_rebuildHash)
858 {
859 InitHashTable();
860 m_rebuildHash = false;
861 }
862
863 if (!m_eventTypeTable)
864 return false;
865
866 // Find all entries for the given event type.
867 wxEventType eventType = event.GetEventType();
868 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
869 if (eTTnode && eTTnode->eventType == eventType)
870 {
871 // Now start the search for an event handler
872 // that can handle an event with the given ID.
873 const wxEventTableEntryPointerArray&
874 eventEntryTable = eTTnode->eventEntryTable;
875
876 const size_t count = eventEntryTable.GetCount();
877 for (size_t n = 0; n < count; n++)
878 {
879 if ( wxEvtHandler::
880 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
881 {
882 return true;
883 }
884 }
885 }
886
887 return false;
888}
889
890void wxEventHashTable::InitHashTable()
891{
892 // Loop over the event tables and all its base tables.
893 const wxEventTable *table = &m_table;
894 while (table)
895 {
896 // Retrieve all valid event handler entries
897 const wxEventTableEntry *entry = table->entries;
898 while (entry->m_fn != 0)
899 {
900 // Add the event entry in the Hash.
901 AddEntry(*entry);
902
903 entry++;
904 }
905
906 table = table->baseTable;
907 }
908
909 // Lets free some memory.
910 size_t i;
911 for(i = 0; i < m_size; i++)
912 {
913 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
914 if (eTTnode)
915 {
916 eTTnode->eventEntryTable.Shrink();
917 }
918 }
919}
920
921void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
922{
923 // This might happen 'accidentally' as the app is exiting
924 if (!m_eventTypeTable)
925 return;
926
927 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
928 EventTypeTablePointer eTTnode = *peTTnode;
929
930 if (eTTnode)
931 {
932 if (eTTnode->eventType != entry.m_eventType)
933 {
934 // Resize the table!
935 GrowEventTypeTable();
936 // Try again to add it.
937 AddEntry(entry);
938 return;
939 }
940 }
941 else
942 {
943 eTTnode = new EventTypeTable;
944 eTTnode->eventType = entry.m_eventType;
945 *peTTnode = eTTnode;
946 }
947
948 // Fill all hash entries between entry.m_id and entry.m_lastId...
949 eTTnode->eventEntryTable.Add(&entry);
950}
951
952void wxEventHashTable::AllocEventTypeTable(size_t size)
953{
954 m_eventTypeTable = new EventTypeTablePointer[size];
955 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
956 m_size = size;
957}
958
959void wxEventHashTable::GrowEventTypeTable()
960{
961 size_t oldSize = m_size;
962 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
963
964 // TODO: Search the most optimal grow sequence
965 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
966
967 for ( size_t i = 0; i < oldSize; /* */ )
968 {
969 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
970 if (eTToldNode)
971 {
972 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
973 EventTypeTablePointer eTTnode = *peTTnode;
974
975 // Check for collision, we don't want any.
976 if (eTTnode)
977 {
978 GrowEventTypeTable();
979 continue; // Don't increment the counter,
980 // as we still need to add this element.
981 }
982 else
983 {
984 // Get the old value and put it in the new table.
985 *peTTnode = oldEventTypeTable[i];
986 }
987 }
988
989 i++;
990 }
991
992 delete[] oldEventTypeTable;
993}
994
995
996// ----------------------------------------------------------------------------
997// wxEvtHandler
998// ----------------------------------------------------------------------------
999
1000/*
1001 * Event handler
1002 */
1003
1004wxEvtHandler::wxEvtHandler()
1005{
1006 m_nextHandler = (wxEvtHandler *) NULL;
1007 m_previousHandler = (wxEvtHandler *) NULL;
1008 m_enabled = true;
1009 m_dynamicEvents = (wxList *) NULL;
1010 m_pendingEvents = (wxList *) NULL;
1011#if wxUSE_THREADS
1012# if !defined(__VISAGECPP__)
1013 m_eventsLocker = new wxCriticalSection;
1014# endif
1015#endif
1016 // no client data (yet)
1017 m_clientData = NULL;
1018 m_clientDataType = wxClientData_None;
1019}
1020
1021wxEvtHandler::~wxEvtHandler()
1022{
1023 // Takes itself out of the list of handlers
1024 if (m_previousHandler)
1025 m_previousHandler->m_nextHandler = m_nextHandler;
1026
1027 if (m_nextHandler)
1028 m_nextHandler->m_previousHandler = m_previousHandler;
1029
1030 if (m_dynamicEvents)
1031 {
1032 wxList::iterator it = m_dynamicEvents->begin(),
1033 en = m_dynamicEvents->end();
1034 for (;it != en; ++it)
1035 {
1036#if WXWIN_COMPATIBILITY_EVENT_TYPES
1037 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1038#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1039 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1040#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1041
1042 if (entry->m_callbackUserData)
1043 delete entry->m_callbackUserData;
1044 delete entry;
1045 }
1046 delete m_dynamicEvents;
1047 };
1048
1049 if (m_pendingEvents)
1050 m_pendingEvents->DeleteContents(true);
1051 delete m_pendingEvents;
1052
1053#if wxUSE_THREADS
1054# if !defined(__VISAGECPP__)
1055 delete m_eventsLocker;
1056# endif
1057
1058 // Remove us from wxPendingEvents if necessary.
1059 if(wxPendingEventsLocker)
1060 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1061 if ( wxPendingEvents )
1062 {
1063 // Delete all occurences of this from the list of pending events
1064 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1065 }
1066 if(wxPendingEventsLocker)
1067 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1068#endif
1069
1070 // we only delete object data, not untyped
1071 if ( m_clientDataType == wxClientData_Object )
1072 delete m_clientObject;
1073}
1074
1075#if wxUSE_THREADS
1076
1077bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1078{
1079 // check that we are really in a child thread
1080 wxASSERT_MSG( !wxThread::IsMain(),
1081 wxT("use ProcessEvent() in main thread") );
1082
1083 AddPendingEvent(event);
1084
1085 return true;
1086}
1087
1088void wxEvtHandler::ClearEventLocker()
1089{
1090#if !defined(__VISAGECPP__)
1091 delete m_eventsLocker;
1092 m_eventsLocker = NULL;
1093#endif
1094}
1095
1096#endif // wxUSE_THREADS
1097
1098void wxEvtHandler::AddPendingEvent(wxEvent& event)
1099{
1100 // 1) Add event to list of pending events of this event handler
1101
1102 wxEvent *eventCopy = event.Clone();
1103
1104 // we must be able to copy the events here so the event class must
1105 // implement Clone() properly instead of just providing a NULL stab for it
1106 wxCHECK_RET( eventCopy,
1107 _T("events of this type aren't supposed to be posted") );
1108
1109 wxENTER_CRIT_SECT( Lock() );
1110
1111 if ( !m_pendingEvents )
1112 m_pendingEvents = new wxList;
1113
1114 m_pendingEvents->Append(eventCopy);
1115
1116 wxLEAVE_CRIT_SECT( Lock() );
1117
1118 // 2) Add this event handler to list of event handlers that
1119 // have pending events.
1120
1121 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1122
1123 if ( !wxPendingEvents )
1124 wxPendingEvents = new wxList;
1125 wxPendingEvents->Append(this);
1126
1127 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1128
1129 // 3) Inform the system that new pending events are somewhere,
1130 // and that these should be processed in idle time.
1131 wxWakeUpIdle();
1132}
1133
1134void wxEvtHandler::ProcessPendingEvents()
1135{
1136 // this method is only called by wxApp if this handler does have pending
1137 // events
1138 wxCHECK_RET( m_pendingEvents,
1139 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1140
1141 wxENTER_CRIT_SECT( Lock() );
1142
1143 // we leave the loop once we have processed all events that were present at
1144 // the start of ProcessPendingEvents because otherwise we could get into
1145 // infinite loop if the pending event handler execution resulted in another
1146 // event being posted
1147 size_t n = m_pendingEvents->size();
1148 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1149 node;
1150 node = m_pendingEvents->GetFirst() )
1151 {
1152 wxEvent *event = (wxEvent *)node->GetData();
1153
1154 // It's importan we remove event from list before processing it.
1155 // Else a nested event loop, for example from a modal dialog, might
1156 // process the same event again.
1157 m_pendingEvents->Erase(node);
1158
1159 wxLEAVE_CRIT_SECT( Lock() );
1160
1161 ProcessEvent(*event);
1162 delete event;
1163
1164 wxENTER_CRIT_SECT( Lock() );
1165
1166 if ( --n == 0 )
1167 break;
1168 }
1169
1170 wxLEAVE_CRIT_SECT( Lock() );
1171}
1172
1173/*
1174 * Event table stuff
1175 */
1176/* static */ bool
1177wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1178 wxEvtHandler *handler,
1179 wxEvent& event)
1180{
1181 int tableId1 = entry.m_id,
1182 tableId2 = entry.m_lastId;
1183
1184 // match only if the event type is the same and the id is either -1 in
1185 // the event table (meaning "any") or the event id matches the id
1186 // specified in the event table either exactly or by falling into
1187 // range between first and last
1188 if ((tableId1 == wxID_ANY) ||
1189 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1190 (tableId2 != wxID_ANY &&
1191 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1192 {
1193 event.Skip(false);
1194 event.m_callbackUserData = entry.m_callbackUserData;
1195
1196#if wxUSE_EXCEPTIONS
1197 if ( wxTheApp )
1198 {
1199 // call the handler via wxApp method which allows the user to catch
1200 // any exceptions which may be thrown by any handler in the program
1201 // in one place
1202 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1203 }
1204 else
1205#endif // wxUSE_EXCEPTIONS
1206 {
1207 // no need for an extra virtual function call
1208 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1209 }
1210
1211 if (!event.GetSkipped())
1212 return true;
1213 }
1214
1215 return false;
1216}
1217
1218bool wxEvtHandler::TryParent(wxEvent& event)
1219{
1220 if ( wxTheApp && (this != wxTheApp) )
1221 {
1222 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1223 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1224 // processed appropriately via SearchEventTable.
1225 if ( event.GetEventType() != wxEVT_IDLE )
1226 {
1227 if ( wxTheApp->ProcessEvent(event) )
1228 return true;
1229 }
1230 }
1231
1232 return false;
1233}
1234
1235bool wxEvtHandler::ProcessEvent(wxEvent& event)
1236{
1237 // allow the application to hook into event processing
1238 if ( wxTheApp )
1239 {
1240 int rc = wxTheApp->FilterEvent(event);
1241 if ( rc != -1 )
1242 {
1243 wxASSERT_MSG( rc == 1 || rc == 0,
1244 _T("unexpected wxApp::FilterEvent return value") );
1245
1246 return rc != 0;
1247 }
1248 //else: proceed normally
1249 }
1250
1251 // An event handler can be enabled or disabled
1252 if ( GetEvtHandlerEnabled() )
1253 {
1254 // if we have a validator, it has higher priority than our own event
1255 // table
1256 if ( TryValidator(event) )
1257 return true;
1258
1259 // Handle per-instance dynamic event tables first
1260 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1261 return true;
1262
1263 // Then static per-class event tables
1264 if ( GetEventHashTable().HandleEvent(event, this) )
1265 return true;
1266 }
1267
1268 // Try going down the event handler chain
1269 if ( GetNextHandler() )
1270 {
1271 if ( GetNextHandler()->ProcessEvent(event) )
1272 return true;
1273 }
1274
1275 // Finally propagate the event upwards the window chain and/or to the
1276 // application object as necessary
1277 return TryParent(event);
1278}
1279
1280
1281bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1282{
1283 const wxEventType eventType = event.GetEventType();
1284 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1285 {
1286 const wxEventTableEntry& entry = table.entries[i];
1287 if ( eventType == entry.m_eventType )
1288 {
1289 if ( ProcessEventIfMatches(entry, this, event) )
1290 return true;
1291 }
1292 }
1293
1294 return false;
1295}
1296
1297void wxEvtHandler::Connect( int id, int lastId,
1298 int eventType,
1299 wxObjectEventFunction func,
1300 wxObject *userData,
1301 wxEvtHandler* eventSink )
1302{
1303#if WXWIN_COMPATIBILITY_EVENT_TYPES
1304 wxEventTableEntry *entry = new wxEventTableEntry;
1305 entry->m_eventType = eventType;
1306 entry->m_id = id;
1307 entry->m_lastId = lastId;
1308 entry->m_fn = func;
1309 entry->m_callbackUserData = userData;
1310#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1311 wxDynamicEventTableEntry *entry =
1312 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1313#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1314
1315 if (!m_dynamicEvents)
1316 m_dynamicEvents = new wxList;
1317
1318 // Insert at the front of the list so most recent additions are found first
1319 m_dynamicEvents->Insert( (wxObject*) entry );
1320}
1321
1322bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1323 wxObjectEventFunction func,
1324 wxObject *userData,
1325 wxEvtHandler* eventSink )
1326{
1327 if (!m_dynamicEvents)
1328 return false;
1329
1330 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1331 while (node)
1332 {
1333#if WXWIN_COMPATIBILITY_EVENT_TYPES
1334 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1335#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1336 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1337#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1338
1339 if ((entry->m_id == id) &&
1340 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1341 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1342 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1343 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1344 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1345 {
1346 if (entry->m_callbackUserData)
1347 delete entry->m_callbackUserData;
1348 m_dynamicEvents->Erase( node );
1349 delete entry;
1350 return true;
1351 }
1352 node = node->GetNext();
1353 }
1354 return false;
1355}
1356
1357bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1358{
1359 wxCHECK_MSG( m_dynamicEvents, false,
1360 wxT("caller should check that we have dynamic events") );
1361
1362 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1363 while (node)
1364 {
1365#if WXWIN_COMPATIBILITY_EVENT_TYPES
1366 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1367#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1368 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1369#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1370
1371 // get next node before (maybe) calling the event handler as it could
1372 // call Disconnect() invalidating the current node
1373 node = node->GetNext();
1374
1375 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1376 {
1377 wxEvtHandler *handler =
1378#if !WXWIN_COMPATIBILITY_EVENT_TYPES
1379 entry->m_eventSink ? entry->m_eventSink
1380 :
1381#endif
1382 this;
1383
1384 if ( ProcessEventIfMatches(*entry, handler, event) )
1385 {
1386 return true;
1387 }
1388 }
1389 }
1390
1391 return false;
1392}
1393
1394void wxEvtHandler::DoSetClientObject( wxClientData *data )
1395{
1396 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1397 wxT("can't have both object and void client data") );
1398
1399 if ( m_clientObject )
1400 delete m_clientObject;
1401
1402 m_clientObject = data;
1403 m_clientDataType = wxClientData_Object;
1404}
1405
1406wxClientData *wxEvtHandler::DoGetClientObject() const
1407{
1408 // it's not an error to call GetClientObject() on a window which doesn't
1409 // have client data at all - NULL will be returned
1410 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1411 wxT("this window doesn't have object client data") );
1412
1413 return m_clientObject;
1414}
1415
1416void wxEvtHandler::DoSetClientData( void *data )
1417{
1418 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1419 wxT("can't have both object and void client data") );
1420
1421 m_clientData = data;
1422 m_clientDataType = wxClientData_Void;
1423}
1424
1425void *wxEvtHandler::DoGetClientData() const
1426{
1427 // it's not an error to call GetClientData() on a window which doesn't have
1428 // client data at all - NULL will be returned
1429 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1430 wxT("this window doesn't have void client data") );
1431
1432 return m_clientData;
1433}
1434
1435#endif // wxUSE_BASE
1436
1437#if wxUSE_GUI
1438
1439// Find a window with the focus, that is also a descendant of the given window.
1440// This is used to determine the window to initially send commands to.
1441wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1442{
1443 // Process events starting with the window with the focus, if any.
1444 wxWindow* focusWin = wxWindow::FindFocus();
1445 wxWindow* win = focusWin;
1446
1447 // Check if this is a descendant of this frame.
1448 // If not, win will be set to NULL.
1449 while (win)
1450 {
1451 if (win == ancestor)
1452 break;
1453 else
1454 win = win->GetParent();
1455 }
1456 if (win == (wxWindow*) NULL)
1457 focusWin = (wxWindow*) NULL;
1458
1459 return focusWin;
1460}
1461
1462#endif // wxUSE_GUI
wxWidgets (Impactor)