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disable use of #pragma interface under Mac OS X
[wxWidgets.git] / src / common / event.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: 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#ifdef __GNUG__
21 #pragma implementation "event.h"
22#endif
23
24// For compilers that support precompilation, includes "wx.h".
25#include "wx/wxprec.h"
26
27#ifdef __BORLANDC__
28 #pragma hdrstop
29#endif
30
31#ifndef WX_PRECOMP
32 #include "wx/defs.h"
33 #include "wx/app.h"
34 #include "wx/list.h"
35
36 #if wxUSE_GUI
37 #include "wx/control.h"
38 #include "wx/utils.h"
39 #include "wx/dc.h"
40 #endif // wxUSE_GUI
41#endif
42
43#include "wx/event.h"
44
45#if wxUSE_GUI
46 #include "wx/validate.h"
47#endif // wxUSE_GUI
48
49// ----------------------------------------------------------------------------
50// wxWin macros
51// ----------------------------------------------------------------------------
52
53IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
54IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
55
56#if wxUSE_GUI
57 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
58 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
59 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
60 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
61 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
62 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
63 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
64 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
65 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
66 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
67 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
68 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
69 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
70 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
91 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
92#endif // wxUSE_GUI
93
94const wxEventTable *wxEvtHandler::GetEventTable() const
95 { return &wxEvtHandler::sm_eventTable; }
96
97const wxEventTable wxEvtHandler::sm_eventTable =
98 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
99
100const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
101 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
102
103// ----------------------------------------------------------------------------
104// global variables
105// ----------------------------------------------------------------------------
106
107// To put pending event handlers
108wxList *wxPendingEvents = (wxList *)NULL;
109
110#if wxUSE_THREADS
111 // protects wxPendingEvents list
112 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
113#endif
114
115#if !WXWIN_COMPATIBILITY_EVENT_TYPES
116
117// common event types are defined here, other event types are defined by the
118// components which use them
119
120DEFINE_EVENT_TYPE(wxEVT_NULL)
121DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
122DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
123DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
124DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
125DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
126DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
127DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
128DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
129DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
130DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
131DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
132DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
133DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
134DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
135DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
136DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
137
138// Sockets and timers send events, too
139DEFINE_EVENT_TYPE(wxEVT_SOCKET)
140DEFINE_EVENT_TYPE(wxEVT_TIMER)
141
142// Mouse event types
143DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
144DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
145DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
146DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
147DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
148DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
149DEFINE_EVENT_TYPE(wxEVT_MOTION)
150DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
151DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
152DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
153DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
154DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
155DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
156DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
157DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
158DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
159
160// Non-client mouse events
161DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
162DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
163DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
164DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
165DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
166DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
167DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
168DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
169DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
170DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
171DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
172DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
173
174// Character input event type
175DEFINE_EVENT_TYPE(wxEVT_CHAR)
176DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
177DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
178DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
179DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
180
181// Set cursor event
182DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
183
184// wxScrollbar and wxSlider event identifiers
185DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
186DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
187DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
188DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
189DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
190DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
191DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
192DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
193DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL)
194
195// Scroll events from wxWindow
196DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
197DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
198DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
199DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
200DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
201DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
202DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
203DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
204
205// System events
206DEFINE_EVENT_TYPE(wxEVT_SIZE)
207DEFINE_EVENT_TYPE(wxEVT_MOVE)
208DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
209DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
210DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
211DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
212DEFINE_EVENT_TYPE(wxEVT_POWER)
213DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
214DEFINE_EVENT_TYPE(wxEVT_CREATE)
215DEFINE_EVENT_TYPE(wxEVT_DESTROY)
216DEFINE_EVENT_TYPE(wxEVT_SHOW)
217DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
218DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
219DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
220DEFINE_EVENT_TYPE(wxEVT_PAINT)
221DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
222DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
223DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
224DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
225DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
226DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
227DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
228DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
229DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
230DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
231DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
232DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
233DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
234DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
235DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
236DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
237DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
238DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
239DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
240DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
241DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
242DEFINE_EVENT_TYPE(wxEVT_IDLE)
243DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
244
245// Generic command events
246// Note: a click is a higher-level event than button down/up
247DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
248DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
249DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
250DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
251DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
252DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
253DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
254
255// Help events
256DEFINE_EVENT_TYPE(wxEVT_HELP)
257DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
258
259#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
260
261// ============================================================================
262// implementation
263// ============================================================================
264
265// ----------------------------------------------------------------------------
266// event initialization
267// ----------------------------------------------------------------------------
268
269int wxNewEventType()
270{
271 // MT-FIXME
272 static int s_lastUsedEventType = wxEVT_FIRST;
273
274#if WXWIN_COMPATIBILITY_2
275 // check that we don't overlap with the user-defined types: if it does
276 // happen, the best solution is probably to update the existing code to
277 // use wxNewEventType() instead of wxEVT_USER_FIRST
278 //
279 // due to the uncertainty
280 wxASSERT_MSG( s_lastUsedEventType < wxEVT_USER_FIRST - 1,
281 _T("possible event type conflict") );
282#endif // WXWIN_COMPATIBILITY_2
283
284 return s_lastUsedEventType++;
285}
286
287// ----------------------------------------------------------------------------
288// wxEvent
289// ----------------------------------------------------------------------------
290
291/*
292 * General wxWindows events, covering
293 * all interesting things that might happen (button clicking, resizing,
294 * setting text in widgets, etc.).
295 *
296 * For each completely new event type, derive a new event class.
297 *
298 */
299
300wxEvent::wxEvent(int theId, wxEventType commandType )
301{
302 m_eventType = commandType;
303 m_eventObject = (wxObject *) NULL;
304 m_timeStamp = 0;
305 m_id = theId;
306 m_skipped = FALSE;
307 m_callbackUserData = (wxObject *) NULL;
308 m_isCommandEvent = FALSE;
309}
310
311wxEvent::wxEvent(const wxEvent &src)
312 : wxObject()
313 , m_eventObject(src.m_eventObject)
314 , m_eventType(src.m_eventType)
315 , m_timeStamp(src.m_timeStamp)
316 , m_id(src.m_id)
317 , m_callbackUserData(src.m_callbackUserData)
318 , m_skipped(src.m_skipped)
319 , m_isCommandEvent(src.m_isCommandEvent)
320{
321}
322
323#if wxUSE_GUI
324
325/*
326 * Command events
327 *
328 */
329
330wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
331 : wxEvent(theId, commandType)
332{
333 m_clientData = (char *) NULL;
334 m_clientObject = (wxClientData *) NULL;
335 m_extraLong = 0;
336 m_commandInt = 0;
337 m_commandString = wxEmptyString;
338 m_isCommandEvent = TRUE;
339}
340
341/*
342 * Scroll events
343 */
344
345wxScrollEvent::wxScrollEvent(wxEventType commandType,
346 int id,
347 int pos,
348 int orient)
349 : wxCommandEvent(commandType, id)
350{
351 m_extraLong = orient;
352 m_commandInt = pos;
353}
354
355/*
356 * ScrollWin events
357 */
358
359wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
360 int pos,
361 int orient)
362{
363 m_eventType = commandType;
364 m_extraLong = orient;
365 m_commandInt = pos;
366}
367
368/*
369 * Mouse events
370 *
371 */
372
373wxMouseEvent::wxMouseEvent(wxEventType commandType)
374{
375 m_eventType = commandType;
376 m_metaDown = FALSE;
377 m_altDown = FALSE;
378 m_controlDown = FALSE;
379 m_shiftDown = FALSE;
380 m_leftDown = FALSE;
381 m_rightDown = FALSE;
382 m_middleDown = FALSE;
383 m_x = 0;
384 m_y = 0;
385 m_wheelRotation = 0;
386 m_wheelDelta = 0;
387 m_linesPerAction = 0;
388}
389
390void wxMouseEvent::Assign(const wxMouseEvent& event)
391{
392 m_eventType = event.m_eventType;
393
394 m_x = event.m_x;
395 m_y = event.m_y;
396
397 m_leftDown = event.m_leftDown;
398 m_middleDown = event.m_middleDown;
399 m_rightDown = event.m_rightDown;
400
401 m_controlDown = event.m_controlDown;
402 m_shiftDown = event.m_shiftDown;
403 m_altDown = event.m_altDown;
404 m_metaDown = event.m_metaDown;
405
406 m_wheelRotation = event.m_wheelRotation;
407 m_wheelDelta = event.m_wheelDelta;
408 m_linesPerAction = event.m_linesPerAction;
409}
410
411// True if was a button dclick event (1 = left, 2 = middle, 3 = right)
412// or any button dclick event (but = -1)
413bool wxMouseEvent::ButtonDClick(int but) const
414{
415 switch (but)
416 {
417 case -1:
418 return (LeftDClick() || MiddleDClick() || RightDClick());
419 case 1:
420 return LeftDClick();
421 case 2:
422 return MiddleDClick();
423 case 3:
424 return RightDClick();
425 default:
426 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
427 }
428
429 return FALSE;
430}
431
432// True if was a button down event (1 = left, 2 = middle, 3 = right)
433// or any button down event (but = -1)
434bool wxMouseEvent::ButtonDown(int but) const
435{
436 switch (but)
437 {
438 case -1:
439 return (LeftDown() || MiddleDown() || RightDown());
440 case 1:
441 return LeftDown();
442 case 2:
443 return MiddleDown();
444 case 3:
445 return RightDown();
446 default:
447 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
448 }
449
450 return FALSE;
451}
452
453// True if was a button up event (1 = left, 2 = middle, 3 = right)
454// or any button up event (but = -1)
455bool wxMouseEvent::ButtonUp(int but) const
456{
457 switch (but)
458 {
459 case -1:
460 return (LeftUp() || MiddleUp() || RightUp());
461 case 1:
462 return LeftUp();
463 case 2:
464 return MiddleUp();
465 case 3:
466 return RightUp();
467 default:
468 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
469 }
470
471 return FALSE;
472}
473
474// True if the given button is currently changing state
475bool wxMouseEvent::Button(int but) const
476{
477 switch (but)
478 {
479 case -1:
480 return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1));
481 case 1:
482 return (LeftDown() || LeftUp() || LeftDClick());
483 case 2:
484 return (MiddleDown() || MiddleUp() || MiddleDClick());
485 case 3:
486 return (RightDown() || RightUp() || RightDClick());
487 default:
488 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
489 }
490
491 return FALSE;
492}
493
494bool wxMouseEvent::ButtonIsDown(int but) const
495{
496 switch (but)
497 {
498 case -1:
499 return (LeftIsDown() || MiddleIsDown() || RightIsDown());
500 case 1:
501 return LeftIsDown();
502 case 2:
503 return MiddleIsDown();
504 case 3:
505 return RightIsDown();
506 default:
507 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
508 }
509
510 return FALSE;
511}
512
513int wxMouseEvent::GetButton() const
514{
515 for ( int i = 1; i <= 3; i++ )
516 {
517 if ( Button(i) )
518 {
519 return i;
520 }
521 }
522
523 return -1;
524}
525
526// Find the logical position of the event given the DC
527wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
528{
529 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
530 return pt;
531}
532
533
534/*
535 * Keyboard event
536 *
537 */
538
539wxKeyEvent::wxKeyEvent(wxEventType type)
540{
541 m_eventType = type;
542 m_shiftDown = FALSE;
543 m_controlDown = FALSE;
544 m_metaDown = FALSE;
545 m_altDown = FALSE;
546 m_keyCode = 0;
547 m_scanCode = 0;
548#if wxUSE_UNICODE
549 m_uniChar = 0;
550#endif
551}
552
553wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
554 : wxEvent(evt)
555{
556 m_x = evt.m_x;
557 m_y = evt.m_y;
558
559 m_keyCode = evt.m_keyCode;
560
561 m_controlDown = evt.m_controlDown;
562 m_shiftDown = evt.m_shiftDown;
563 m_altDown = evt.m_altDown;
564 m_metaDown = evt.m_metaDown;
565 m_scanCode = evt.m_scanCode;
566 m_rawCode = evt.m_rawCode;
567 m_rawFlags = evt.m_rawFlags;
568
569#if wxUSE_UNICODE
570 m_uniChar = evt.m_uniChar;
571#endif
572}
573
574long wxKeyEvent::KeyCode() const
575{
576 return m_keyCode;
577}
578
579wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
580{
581 SetEventType(wxEVT_CREATE);
582 SetEventObject(win);
583}
584
585wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
586{
587 SetEventType(wxEVT_DESTROY);
588 SetEventObject(win);
589}
590
591wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
592 : wxCommandEvent(wxEVT_CHILD_FOCUS)
593{
594 SetEventObject(win);
595}
596
597#endif // wxUSE_GUI
598
599// ----------------------------------------------------------------------------
600// wxEvtHandler
601// ----------------------------------------------------------------------------
602
603/*
604 * Event handler
605 */
606
607wxEvtHandler::wxEvtHandler()
608{
609 m_nextHandler = (wxEvtHandler *) NULL;
610 m_previousHandler = (wxEvtHandler *) NULL;
611 m_enabled = TRUE;
612 m_dynamicEvents = (wxList *) NULL;
613 m_isWindow = FALSE;
614 m_pendingEvents = (wxList *) NULL;
615#if wxUSE_THREADS
616# if !defined(__VISAGECPP__)
617 m_eventsLocker = new wxCriticalSection;
618# endif
619#endif
620 // no client data (yet)
621 m_clientData = NULL;
622 m_clientDataType = wxClientData_None;
623}
624
625wxEvtHandler::~wxEvtHandler()
626{
627 // Takes itself out of the list of handlers
628 if (m_previousHandler)
629 m_previousHandler->m_nextHandler = m_nextHandler;
630
631 if (m_nextHandler)
632 m_nextHandler->m_previousHandler = m_previousHandler;
633
634 if (m_dynamicEvents)
635 {
636 wxNode *node = m_dynamicEvents->GetFirst();
637 while (node)
638 {
639#if WXWIN_COMPATIBILITY_EVENT_TYPES
640 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
641#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
642 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
643#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
644
645 if (entry->m_callbackUserData)
646 delete entry->m_callbackUserData;
647 delete entry;
648 node = node->GetNext();
649 }
650 delete m_dynamicEvents;
651 };
652
653 delete m_pendingEvents;
654
655#if wxUSE_THREADS
656# if !defined(__VISAGECPP__)
657 delete m_eventsLocker;
658# endif
659
660 // Remove us from wxPendingEvents if necessary.
661 if(wxPendingEventsLocker)
662 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
663 if ( wxPendingEvents ) {
664 wxPendingEvents->DeleteObject(this);
665 }
666 if(wxPendingEventsLocker)
667 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
668#endif
669
670 // we only delete object data, not untyped
671 if ( m_clientDataType == wxClientData_Object )
672 delete m_clientObject;
673}
674
675#if wxUSE_THREADS
676
677bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
678{
679 // check that we are really in a child thread
680 wxASSERT_MSG( !wxThread::IsMain(),
681 wxT("use ProcessEvent() in main thread") );
682
683 AddPendingEvent(event);
684
685 return TRUE;
686}
687
688#endif // wxUSE_THREADS
689
690void wxEvtHandler::AddPendingEvent(wxEvent& event)
691{
692 // 1) Add event to list of pending events of this event handler
693
694 wxEvent *eventCopy = event.Clone();
695
696 // we must be able to copy the events here so the event class must
697 // implement Clone() properly instead of just providing a NULL stab for it
698 wxCHECK_RET( eventCopy,
699 _T("events of this type aren't supposed to be posted") );
700
701#if defined(__VISAGECPP__)
702 wxENTER_CRIT_SECT( m_eventsLocker);
703#else
704 wxENTER_CRIT_SECT( *m_eventsLocker);
705#endif
706
707 if ( !m_pendingEvents )
708 m_pendingEvents = new wxList;
709
710 m_pendingEvents->Append(eventCopy);
711
712#if defined(__VISAGECPP__)
713 wxLEAVE_CRIT_SECT( m_eventsLocker);
714#else
715 wxLEAVE_CRIT_SECT( *m_eventsLocker);
716#endif
717
718 // 2) Add this event handler to list of event handlers that
719 // have pending events.
720
721 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
722
723 if ( !wxPendingEvents )
724 wxPendingEvents = new wxList;
725 wxPendingEvents->Append(this);
726
727 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
728
729 // 3) Inform the system that new pending events are somwehere,
730 // and that these should be processed in idle time.
731 wxWakeUpIdle();
732}
733
734void wxEvtHandler::ProcessPendingEvents()
735{
736#if defined(__VISAGECPP__)
737 wxENTER_CRIT_SECT( m_eventsLocker);
738#else
739 wxENTER_CRIT_SECT( *m_eventsLocker);
740#endif
741
742 wxNode *node = m_pendingEvents->GetFirst();
743 while ( node )
744 {
745 wxEvent *event = (wxEvent *)node->GetData();
746 delete node;
747
748 // In ProcessEvent, new events might get added and
749 // we can safely leave the crtical section here.
750#if defined(__VISAGECPP__)
751 wxLEAVE_CRIT_SECT( m_eventsLocker);
752#else
753 wxLEAVE_CRIT_SECT( *m_eventsLocker);
754#endif
755 ProcessEvent(*event);
756 delete event;
757#if defined(__VISAGECPP__)
758 wxENTER_CRIT_SECT( m_eventsLocker);
759#else
760 wxENTER_CRIT_SECT( *m_eventsLocker);
761#endif
762
763 node = m_pendingEvents->GetFirst();
764 }
765
766#if defined(__VISAGECPP__)
767 wxLEAVE_CRIT_SECT( m_eventsLocker);
768#else
769 wxLEAVE_CRIT_SECT( *m_eventsLocker);
770#endif
771}
772
773/*
774 * Event table stuff
775 */
776
777bool wxEvtHandler::ProcessEvent(wxEvent& event)
778{
779#if wxUSE_GUI
780
781 // We have to use the actual window or processing events from
782 // wxWindowNative destructor won't work (we don't see the wxWindow class)
783#ifdef __WXDEBUG__
784 // check that our flag corresponds to reality
785 wxClassInfo* info = NULL;
786#ifdef __WXUNIVERSAL__
787# if defined(__WXMSW__)
788 info = CLASSINFO(wxWindowMSW);
789# elif defined(__WXGTK__)
790 info = CLASSINFO(wxWindowGTK);
791# elif defined(__WXX11__)
792 info = CLASSINFO(wxWindowX11);
793# elif defined(__WXMGL__)
794 info = CLASSINFO(wxWindowMGL);
795# elif defined(__WXPM__)
796 info = CLASSINFO(wxWindowOS2);
797# elif defined(__WXMAC__)
798 info = CLASSINFO(wxWindowMac);
799# elif defined(__WXMOTIF__)
800 info = CLASSINFO(wxWindowMotif);
801# endif
802#else
803 info = CLASSINFO(wxWindow);
804#endif
805
806 if ( m_isWindow != IsKindOf(info) )
807 {
808 wxString msg = GetClassInfo()->GetClassName();
809 msg += _T(" should [not] be a window but it is [not]");
810
811 wxFAIL_MSG( msg );
812 }
813
814#endif // __WXDEBUG__
815
816#endif // wxUSE_GUI
817
818 // allow the application to hook into event processing
819 if ( wxTheApp )
820 {
821 int rc = wxTheApp->FilterEvent(event);
822 if ( rc != -1 )
823 {
824 wxASSERT_MSG( rc == 1 || rc == 0,
825 _T("unexpected wxApp::FilterEvent return value") );
826
827 return rc != 0;
828 }
829 //else: proceed normally
830 }
831
832 // An event handler can be enabled or disabled
833 if ( GetEvtHandlerEnabled() )
834 {
835
836#if 0
837/*
838 What is this? When using GUI threads, a non main
839 threads can send an event and process it itself.
840 This breaks GTK's GUI threads, so please explain.
841*/
842
843 // Check whether we are in a child thread.
844 if ( !wxThread::IsMain() )
845 return ProcessThreadEvent(event);
846#endif
847
848 // Handle per-instance dynamic event tables first
849 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
850 return TRUE;
851
852 // Then static per-class event tables
853 const wxEventTable *table = GetEventTable();
854
855#if wxUSE_GUI && wxUSE_VALIDATORS
856 // Try the associated validator first, if this is a window.
857 // Problem: if the event handler of the window has been replaced,
858 // this wxEvtHandler may no longer be a window.
859 // Therefore validators won't be processed if the handler
860 // has been replaced with SetEventHandler.
861 // THIS CAN BE CURED if PushEventHandler is used instead of
862 // SetEventHandler, and then processing will be passed down the
863 // chain of event handlers.
864 if (m_isWindow)
865 {
866 wxWindow *win = (wxWindow *)this;
867
868 // Can only use the validator of the window which
869 // is receiving the event
870 if ( win == event.GetEventObject() )
871 {
872 wxValidator *validator = win->GetValidator();
873 if ( validator && validator->ProcessEvent(event) )
874 {
875 return TRUE;
876 }
877 }
878 }
879#endif
880
881 // Search upwards through the inheritance hierarchy
882 while (table)
883 {
884 if ( SearchEventTable((wxEventTable&)*table, event) )
885 return TRUE;
886 table = table->baseTable;
887 }
888 }
889
890 // Try going down the event handler chain
891 if ( GetNextHandler() )
892 {
893 if ( GetNextHandler()->ProcessEvent(event) )
894 return TRUE;
895 }
896
897#if wxUSE_GUI
898 // Carry on up the parent-child hierarchy, but only if event is a command
899 // event: it wouldn't make sense for a parent to receive a child's size
900 // event, for example
901 if ( m_isWindow && event.IsCommandEvent() )
902 {
903 wxWindow *win = (wxWindow *)this;
904
905 // honour the requests to stop propagation at this window: this is
906 // used by the dialogs, for example, to prevent processing the events
907 // from the dialog controls in the parent frame which rarely, if ever,
908 // makes sense
909 if ( !(win->GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
910 {
911 wxWindow *parent = win->GetParent();
912 if ( parent && !parent->IsBeingDeleted() )
913 return parent->GetEventHandler()->ProcessEvent(event);
914 }
915 }
916#endif // wxUSE_GUI
917
918 // Last try - application object.
919 if ( wxTheApp && (this != wxTheApp) )
920 {
921 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
922 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
923 // processed appropriately via SearchEventTable.
924 if ( event.GetEventType() != wxEVT_IDLE )
925 {
926 if ( wxTheApp->ProcessEvent(event) )
927 return TRUE;
928 }
929 }
930
931 return FALSE;
932}
933
934bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
935{
936 wxEventType eventType = event.GetEventType();
937 int eventId = event.GetId();
938
939 // BC++ doesn't like testing for m_fn without != 0
940 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
941 {
942 // the line using reference exposes a bug in gcc: although it _seems_
943 // to work, it leads to weird crashes later on during program
944 // execution
945#ifdef __GNUG__
946 wxEventTableEntry entry = table.entries[i];
947#else
948 const wxEventTableEntry& entry = table.entries[i];
949#endif
950
951 // match only if the event type is the same and the id is either -1 in
952 // the event table (meaning "any") or the event id matches the id
953 // specified in the event table either exactly or by falling into
954 // range between first and last
955 if ( eventType == entry.m_eventType )
956 {
957 int tableId1 = entry.m_id,
958 tableId2 = entry.m_lastId;
959
960 if ( (tableId1 == -1) ||
961 (tableId2 == -1 && eventId == tableId1) ||
962 (tableId2 != -1 &&
963 (eventId >= tableId1 && eventId <= tableId2)) )
964 {
965 event.Skip(FALSE);
966 event.m_callbackUserData = entry.m_callbackUserData;
967
968 (this->*((wxEventFunction) (entry.m_fn)))(event);
969
970 return !event.GetSkipped();
971 }
972 }
973 }
974
975 return FALSE;
976}
977
978void wxEvtHandler::Connect( int id, int lastId,
979 int eventType,
980 wxObjectEventFunction func,
981 wxObject *userData )
982{
983#if WXWIN_COMPATIBILITY_EVENT_TYPES
984 wxEventTableEntry *entry = new wxEventTableEntry;
985 entry->m_eventType = eventType;
986 entry->m_id = id;
987 entry->m_lastId = lastId;
988 entry->m_fn = func;
989 entry->m_callbackUserData = userData;
990#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
991 wxDynamicEventTableEntry *entry =
992 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
993#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
994
995 if (!m_dynamicEvents)
996 m_dynamicEvents = new wxList;
997
998 // Insert at the front of the list so most recent additions are found first
999 m_dynamicEvents->Insert( (wxObject*) entry );
1000}
1001
1002bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1003 wxObjectEventFunction func,
1004 wxObject *userData )
1005{
1006 if (!m_dynamicEvents)
1007 return FALSE;
1008
1009 wxNode *node = m_dynamicEvents->GetFirst();
1010 while (node)
1011 {
1012#if WXWIN_COMPATIBILITY_EVENT_TYPES
1013 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1014#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1015 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1016#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1017
1018 if ((entry->m_id == id) &&
1019 ((entry->m_lastId == lastId) || (lastId == -1)) &&
1020 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1021 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1022 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1023 {
1024 if (entry->m_callbackUserData)
1025 delete entry->m_callbackUserData;
1026 m_dynamicEvents->DeleteNode( node );
1027 delete entry;
1028 return TRUE;
1029 }
1030 node = node->GetNext();
1031 }
1032 return FALSE;
1033}
1034
1035bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1036{
1037 wxCHECK_MSG( m_dynamicEvents, FALSE,
1038 wxT("caller should check that we have dynamic events") );
1039
1040 int commandId = event.GetId();
1041
1042 wxNode *node = m_dynamicEvents->GetFirst();
1043 while (node)
1044 {
1045#if WXWIN_COMPATIBILITY_EVENT_TYPES
1046 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1047#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1048 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1049#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1050
1051 if (entry->m_fn)
1052 {
1053 // Match, if event spec says any id will do (id == -1)
1054 if ( (event.GetEventType() == entry->m_eventType) &&
1055 (entry->m_id == -1 ||
1056 (entry->m_lastId == -1 && commandId == entry->m_id) ||
1057 (entry->m_lastId != -1 &&
1058 (commandId >= entry->m_id && commandId <= entry->m_lastId))) )
1059 {
1060 event.Skip(FALSE);
1061 event.m_callbackUserData = entry->m_callbackUserData;
1062
1063 (this->*((wxEventFunction) (entry->m_fn)))(event);
1064
1065 if ( ! event.GetSkipped() )
1066 return TRUE;
1067 }
1068 }
1069 node = node->GetNext();
1070 }
1071 return FALSE;
1072};
1073
1074void wxEvtHandler::DoSetClientObject( wxClientData *data )
1075{
1076 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1077 wxT("can't have both object and void client data") );
1078
1079 if ( m_clientObject )
1080 delete m_clientObject;
1081
1082 m_clientObject = data;
1083 m_clientDataType = wxClientData_Object;
1084}
1085
1086wxClientData *wxEvtHandler::DoGetClientObject() const
1087{
1088 // it's not an error to call GetClientObject() on a window which doesn't
1089 // have client data at all - NULL will be returned
1090 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1091 wxT("this window doesn't have object client data") );
1092
1093 return m_clientObject;
1094}
1095
1096void wxEvtHandler::DoSetClientData( void *data )
1097{
1098 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1099 wxT("can't have both object and void client data") );
1100
1101 m_clientData = data;
1102 m_clientDataType = wxClientData_Void;
1103}
1104
1105void *wxEvtHandler::DoGetClientData() const
1106{
1107 // it's not an error to call GetClientData() on a window which doesn't have
1108 // client data at all - NULL will be returned
1109 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1110 wxT("this window doesn't have void client data") );
1111
1112 return m_clientData;
1113}
1114
1115
1116#if WXWIN_COMPATIBILITY
1117bool wxEvtHandler::OnClose()
1118{
1119 if (GetNextHandler())
1120 return GetNextHandler()->OnClose();
1121 else
1122 return FALSE;
1123}
1124#endif // WXWIN_COMPATIBILITY
1125
1126#if wxUSE_GUI
1127
1128// Find a window with the focus, that is also a descendant of the given window.
1129// This is used to determine the window to initially send commands to.
1130wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1131{
1132 // Process events starting with the window with the focus, if any.
1133 wxWindow* focusWin = wxWindow::FindFocus();
1134 wxWindow* win = focusWin;
1135
1136 // Check if this is a descendant of this frame.
1137 // If not, win will be set to NULL.
1138 while (win)
1139 {
1140 if (win == ancestor)
1141 break;
1142 else
1143 win = win->GetParent();
1144 }
1145 if (win == (wxWindow*) NULL)
1146 focusWin = (wxWindow*) NULL;
1147
1148 return focusWin;
1149}
1150
1151#endif // wxUSE_GUI
wxWidgets (Impactor)