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corrected WXDLLIMPEXP_ declaration for wxEventBlocker: it's part of core, not base
[wxWidgets.git] / src / common / event.cpp
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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(src)
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 m_wheelAxis = 0;
543}
544
545void wxMouseEvent::Assign(const wxMouseEvent& event)
546{
547 m_eventType = event.m_eventType;
548
549 m_x = event.m_x;
550 m_y = event.m_y;
551
552 m_leftDown = event.m_leftDown;
553 m_middleDown = event.m_middleDown;
554 m_rightDown = event.m_rightDown;
555
556 m_controlDown = event.m_controlDown;
557 m_shiftDown = event.m_shiftDown;
558 m_altDown = event.m_altDown;
559 m_metaDown = event.m_metaDown;
560
561 m_wheelRotation = event.m_wheelRotation;
562 m_wheelDelta = event.m_wheelDelta;
563 m_linesPerAction = event.m_linesPerAction;
564 m_wheelAxis = event.m_wheelAxis;
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
1017 // no client data (yet)
1018 m_clientData = NULL;
1019 m_clientDataType = wxClientData_None;
1020}
1021
1022wxEvtHandler::~wxEvtHandler()
1023{
1024 // Takes itself out of the list of handlers
1025 if (m_previousHandler)
1026 m_previousHandler->m_nextHandler = m_nextHandler;
1027
1028 if (m_nextHandler)
1029 m_nextHandler->m_previousHandler = m_previousHandler;
1030
1031 if (m_dynamicEvents)
1032 {
1033 wxList::iterator it = m_dynamicEvents->begin(),
1034 en = m_dynamicEvents->end();
1035 for (;it != en; ++it)
1036 {
1037#if WXWIN_COMPATIBILITY_EVENT_TYPES
1038 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1039#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1040 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1041#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1042
1043 if (entry->m_callbackUserData)
1044 delete entry->m_callbackUserData;
1045 delete entry;
1046 }
1047 delete m_dynamicEvents;
1048 };
1049
1050 if (m_pendingEvents)
1051 m_pendingEvents->DeleteContents(true);
1052 delete m_pendingEvents;
1053
1054#if wxUSE_THREADS
1055# if !defined(__VISAGECPP__)
1056 delete m_eventsLocker;
1057# endif
1058
1059 // Remove us from wxPendingEvents if necessary.
1060 if(wxPendingEventsLocker)
1061 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1062 if ( wxPendingEvents )
1063 {
1064 // Delete all occurences of this from the list of pending events
1065 while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1066 }
1067 if(wxPendingEventsLocker)
1068 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1069#endif
1070
1071 // we only delete object data, not untyped
1072 if ( m_clientDataType == wxClientData_Object )
1073 delete m_clientObject;
1074}
1075
1076#if wxUSE_THREADS
1077
1078bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1079{
1080 // check that we are really in a child thread
1081 wxASSERT_MSG( !wxThread::IsMain(),
1082 wxT("use ProcessEvent() in main thread") );
1083
1084 AddPendingEvent(event);
1085
1086 return true;
1087}
1088
1089void wxEvtHandler::ClearEventLocker()
1090{
1091#if !defined(__VISAGECPP__)
1092 delete m_eventsLocker;
1093 m_eventsLocker = NULL;
1094#endif
1095}
1096
1097#endif // wxUSE_THREADS
1098
1099void wxEvtHandler::AddPendingEvent(wxEvent& event)
1100{
1101 // 1) Add event to list of pending events of this event handler
1102
1103 wxEvent *eventCopy = event.Clone();
1104
1105 // we must be able to copy the events here so the event class must
1106 // implement Clone() properly instead of just providing a NULL stab for it
1107 wxCHECK_RET( eventCopy,
1108 _T("events of this type aren't supposed to be posted") );
1109
1110 wxENTER_CRIT_SECT( Lock() );
1111
1112 if ( !m_pendingEvents )
1113 m_pendingEvents = new wxList;
1114
1115 m_pendingEvents->Append(eventCopy);
1116
1117 wxLEAVE_CRIT_SECT( Lock() );
1118
1119 // 2) Add this event handler to list of event handlers that
1120 // have pending events.
1121
1122 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1123
1124 if ( !wxPendingEvents )
1125 wxPendingEvents = new wxList;
1126 wxPendingEvents->Append(this);
1127
1128 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1129
1130 // 3) Inform the system that new pending events are somewhere,
1131 // and that these should be processed in idle time.
1132 wxWakeUpIdle();
1133}
1134
1135void wxEvtHandler::ProcessPendingEvents()
1136{
1137 // this method is only called by wxApp if this handler does have
1138 // pending events
1139 wxCHECK_RET( m_pendingEvents,
1140 wxT("Please call wxApp::ProcessPendingEvents() instead") );
1141
1142 wxENTER_CRIT_SECT( Lock() );
1143
1144 // we leave the loop once we have processed all events that were present at
1145 // the start of ProcessPendingEvents because otherwise we could get into
1146 // infinite loop if the pending event handler execution resulted in another
1147 // event being posted
1148 size_t n = m_pendingEvents->size();
1149 for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1150 node;
1151 node = m_pendingEvents->GetFirst() )
1152 {
1153 wxEvent *event = (wxEvent *)node->GetData();
1154
1155 // It's importan we remove event from list before processing it.
1156 // Else a nested event loop, for example from a modal dialog, might
1157 // process the same event again.
1158
1159 m_pendingEvents->Erase(node);
1160
1161 wxLEAVE_CRIT_SECT( Lock() );
1162
1163 ProcessEvent(*event);
1164
1165 delete event;
1166
1167 wxENTER_CRIT_SECT( Lock() );
1168
1169 if ( --n == 0 )
1170 break;
1171 }
1172
1173 wxLEAVE_CRIT_SECT( Lock() );
1174}
1175
1176/*
1177 * Event table stuff
1178 */
1179/* static */ bool
1180wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1181 wxEvtHandler *handler,
1182 wxEvent& event)
1183{
1184 int tableId1 = entry.m_id,
1185 tableId2 = entry.m_lastId;
1186
1187 // match only if the event type is the same and the id is either -1 in
1188 // the event table (meaning "any") or the event id matches the id
1189 // specified in the event table either exactly or by falling into
1190 // range between first and last
1191 if ((tableId1 == wxID_ANY) ||
1192 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1193 (tableId2 != wxID_ANY &&
1194 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1195 {
1196 event.Skip(false);
1197 event.m_callbackUserData = entry.m_callbackUserData;
1198
1199#if wxUSE_EXCEPTIONS
1200 if ( wxTheApp )
1201 {
1202 // call the handler via wxApp method which allows the user to catch
1203 // any exceptions which may be thrown by any handler in the program
1204 // in one place
1205 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1206 }
1207 else
1208#endif // wxUSE_EXCEPTIONS
1209 {
1210 // no need for an extra virtual function call
1211 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1212 }
1213
1214 if (!event.GetSkipped())
1215 return true;
1216 }
1217
1218 return false;
1219}
1220
1221bool wxEvtHandler::TryParent(wxEvent& event)
1222{
1223 if ( wxTheApp && (this != wxTheApp) )
1224 {
1225 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1226 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1227 // processed appropriately via SearchEventTable.
1228 if ( event.GetEventType() != wxEVT_IDLE )
1229 {
1230 if ( wxTheApp->ProcessEvent(event) )
1231 return true;
1232 }
1233 }
1234
1235 return false;
1236}
1237
1238bool wxEvtHandler::ProcessEvent(wxEvent& event)
1239{
1240 // allow the application to hook into event processing
1241 if ( wxTheApp )
1242 {
1243 int rc = wxTheApp->FilterEvent(event);
1244 if ( rc != -1 )
1245 {
1246 wxASSERT_MSG( rc == 1 || rc == 0,
1247 _T("unexpected wxApp::FilterEvent return value") );
1248
1249 return rc != 0;
1250 }
1251 //else: proceed normally
1252 }
1253
1254 // An event handler can be enabled or disabled
1255 if ( GetEvtHandlerEnabled() )
1256 {
1257 // if we have a validator, it has higher priority than our own event
1258 // table
1259 if ( TryValidator(event) )
1260 return true;
1261
1262 // Handle per-instance dynamic event tables first
1263 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1264 return true;
1265
1266 // Then static per-class event tables
1267 if ( GetEventHashTable().HandleEvent(event, this) )
1268 return true;
1269 }
1270
1271 // Try going down the event handler chain
1272 if ( GetNextHandler() )
1273 {
1274 if ( GetNextHandler()->ProcessEvent(event) )
1275 return true;
1276 }
1277
1278 // Finally propagate the event upwards the window chain and/or to the
1279 // application object as necessary
1280 return TryParent(event);
1281}
1282
1283
1284bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1285{
1286 const wxEventType eventType = event.GetEventType();
1287 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1288 {
1289 const wxEventTableEntry& entry = table.entries[i];
1290 if ( eventType == entry.m_eventType )
1291 {
1292 if ( ProcessEventIfMatches(entry, this, event) )
1293 return true;
1294 }
1295 }
1296
1297 return false;
1298}
1299
1300void wxEvtHandler::Connect( int id, int lastId,
1301 int eventType,
1302 wxObjectEventFunction func,
1303 wxObject *userData,
1304 wxEvtHandler* eventSink )
1305{
1306#if WXWIN_COMPATIBILITY_EVENT_TYPES
1307 wxEventTableEntry *entry = new wxEventTableEntry;
1308 entry->m_eventType = eventType;
1309 entry->m_id = id;
1310 entry->m_lastId = lastId;
1311 entry->m_fn = func;
1312 entry->m_callbackUserData = userData;
1313#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1314 wxDynamicEventTableEntry *entry =
1315 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1316#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1317
1318 if (!m_dynamicEvents)
1319 m_dynamicEvents = new wxList;
1320
1321 // Insert at the front of the list so most recent additions are found first
1322 m_dynamicEvents->Insert( (wxObject*) entry );
1323}
1324
1325bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1326 wxObjectEventFunction func,
1327 wxObject *userData,
1328 wxEvtHandler* eventSink )
1329{
1330 if (!m_dynamicEvents)
1331 return false;
1332
1333 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1334 while (node)
1335 {
1336#if WXWIN_COMPATIBILITY_EVENT_TYPES
1337 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1338#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1339 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1340#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1341
1342 if ((entry->m_id == id) &&
1343 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1344 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1345 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1346 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1347 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1348 {
1349 if (entry->m_callbackUserData)
1350 delete entry->m_callbackUserData;
1351 m_dynamicEvents->Erase( node );
1352 delete entry;
1353 return true;
1354 }
1355 node = node->GetNext();
1356 }
1357 return false;
1358}
1359
1360bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1361{
1362 wxCHECK_MSG( m_dynamicEvents, false,
1363 wxT("caller should check that we have dynamic events") );
1364
1365 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1366 while (node)
1367 {
1368#if WXWIN_COMPATIBILITY_EVENT_TYPES
1369 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1370#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1371 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1372#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1373
1374 // get next node before (maybe) calling the event handler as it could
1375 // call Disconnect() invalidating the current node
1376 node = node->GetNext();
1377
1378 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1379 {
1380 wxEvtHandler *handler =
1381#if !WXWIN_COMPATIBILITY_EVENT_TYPES
1382 entry->m_eventSink ? entry->m_eventSink
1383 :
1384#endif
1385 this;
1386
1387 if ( ProcessEventIfMatches(*entry, handler, event) )
1388 {
1389 return true;
1390 }
1391 }
1392 }
1393
1394 return false;
1395}
1396
1397void wxEvtHandler::DoSetClientObject( wxClientData *data )
1398{
1399 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1400 wxT("can't have both object and void client data") );
1401
1402 if ( m_clientObject )
1403 delete m_clientObject;
1404
1405 m_clientObject = data;
1406 m_clientDataType = wxClientData_Object;
1407}
1408
1409wxClientData *wxEvtHandler::DoGetClientObject() const
1410{
1411 // it's not an error to call GetClientObject() on a window which doesn't
1412 // have client data at all - NULL will be returned
1413 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1414 wxT("this window doesn't have object client data") );
1415
1416 return m_clientObject;
1417}
1418
1419void wxEvtHandler::DoSetClientData( void *data )
1420{
1421 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1422 wxT("can't have both object and void client data") );
1423
1424 m_clientData = data;
1425 m_clientDataType = wxClientData_Void;
1426}
1427
1428void *wxEvtHandler::DoGetClientData() const
1429{
1430 // it's not an error to call GetClientData() on a window which doesn't have
1431 // client data at all - NULL will be returned
1432 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1433 wxT("this window doesn't have void client data") );
1434
1435 return m_clientData;
1436}
1437
1438#endif // wxUSE_BASE
1439
1440#if wxUSE_GUI
1441
1442// Find a window with the focus, that is also a descendant of the given window.
1443// This is used to determine the window to initially send commands to.
1444wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1445{
1446 // Process events starting with the window with the focus, if any.
1447 wxWindow* focusWin = wxWindow::FindFocus();
1448 wxWindow* win = focusWin;
1449
1450 // Check if this is a descendant of this frame.
1451 // If not, win will be set to NULL.
1452 while (win)
1453 {
1454 if (win == ancestor)
1455 break;
1456 else
1457 win = win->GetParent();
1458 }
1459 if (win == (wxWindow*) NULL)
1460 focusWin = (wxWindow*) NULL;
1461
1462 return focusWin;
1463}
1464
1465// ----------------------------------------------------------------------------
1466// wxEventBlocker
1467// ----------------------------------------------------------------------------
1468
1469wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1470{
1471 wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1472
1473 m_window = win;
1474
1475 Block(type);
1476 m_window->PushEventHandler(this);
1477}
1478
1479wxEventBlocker::~wxEventBlocker()
1480{
1481 wxEvtHandler *popped = m_window->PopEventHandler(false);
1482 wxCHECK_RET(popped == this,
1483 wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1484}
1485
1486bool wxEventBlocker::ProcessEvent(wxEvent& event)
1487{
1488 // should this event be blocked?
1489 for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1490 {
1491 wxEventType t = (wxEventType)m_eventsToBlock[i];
1492 if ( t == wxEVT_ANY || t == event.GetEventType() )
1493 return true; // yes, it should: mark this event as processed
1494 }
1495
1496 return false;
1497}
1498
1499#endif // wxUSE_GUI
wxWidgets (Impactor)