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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 and Markus Holzem
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->First();
637 while (node)
638 {
639#if WXWIN_COMPATIBILITY_EVENT_TYPES
640 wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
641#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
642 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
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->Next();
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#endif
660
661 // we only delete object data, not untyped
662 if ( m_clientDataType == wxClientData_Object )
663 delete m_clientObject;
664}
665
666#if wxUSE_THREADS
667
668bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
669{
670 // check that we are really in a child thread
671 wxASSERT_MSG( !wxThread::IsMain(),
672 wxT("use ProcessEvent() in main thread") );
673
674 AddPendingEvent(event);
675
676 return TRUE;
677}
678
679#endif // wxUSE_THREADS
680
681void wxEvtHandler::AddPendingEvent(wxEvent& event)
682{
683 // 1) Add event to list of pending events of this event handler
684
685 wxEvent *eventCopy = event.Clone();
686
687 // we must be able to copy the events here so the event class must
688 // implement Clone() properly instead of just providing a NULL stab for it
689 wxCHECK_RET( eventCopy,
690 _T("events of this type aren't supposed to be posted") );
691
692#if defined(__VISAGECPP__)
693 wxENTER_CRIT_SECT( m_eventsLocker);
694#else
695 wxENTER_CRIT_SECT( *m_eventsLocker);
696#endif
697
698 if ( !m_pendingEvents )
699 m_pendingEvents = new wxList;
700
701 m_pendingEvents->Append(eventCopy);
702
703#if defined(__VISAGECPP__)
704 wxLEAVE_CRIT_SECT( m_eventsLocker);
705#else
706 wxLEAVE_CRIT_SECT( *m_eventsLocker);
707#endif
708
709 // 2) Add this event handler to list of event handlers that
710 // have pending events.
711
712 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
713
714 if ( !wxPendingEvents )
715 wxPendingEvents = new wxList;
716 wxPendingEvents->Append(this);
717
718 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
719
720 // 3) Inform the system that new pending events are somwehere,
721 // and that these should be processed in idle time.
722 wxWakeUpIdle();
723}
724
725void wxEvtHandler::ProcessPendingEvents()
726{
727#if defined(__VISAGECPP__)
728 wxENTER_CRIT_SECT( m_eventsLocker);
729#else
730 wxENTER_CRIT_SECT( *m_eventsLocker);
731#endif
732
733 wxNode *node = m_pendingEvents->First();
734 while ( node )
735 {
736 wxEvent *event = (wxEvent *)node->Data();
737 delete node;
738
739 // In ProcessEvent, new events might get added and
740 // we can safely leave the crtical section here.
741#if defined(__VISAGECPP__)
742 wxLEAVE_CRIT_SECT( m_eventsLocker);
743#else
744 wxLEAVE_CRIT_SECT( *m_eventsLocker);
745#endif
746 ProcessEvent(*event);
747 delete event;
748#if defined(__VISAGECPP__)
749 wxENTER_CRIT_SECT( m_eventsLocker);
750#else
751 wxENTER_CRIT_SECT( *m_eventsLocker);
752#endif
753
754 node = m_pendingEvents->First();
755 }
756
757#if defined(__VISAGECPP__)
758 wxLEAVE_CRIT_SECT( m_eventsLocker);
759#else
760 wxLEAVE_CRIT_SECT( *m_eventsLocker);
761#endif
762}
763
764/*
765 * Event table stuff
766 */
767
768bool wxEvtHandler::ProcessEvent(wxEvent& event)
769{
770#if wxUSE_GUI
771
772 // We have to use the actual window or processing events from
773 // wxWindowNative destructor won't work (we don't see the wxWindow class)
774#ifdef __WXDEBUG__
775 // check that our flag corresponds to reality
776 wxClassInfo* info = NULL;
777#ifdef __WXUNIVERSAL__
778# if defined(__WXMSW__)
779 info = CLASSINFO(wxWindowMSW);
780# elif defined(__WXGTK__)
781 info = CLASSINFO(wxWindowGTK);
782# elif defined(__WXX11__)
783 info = CLASSINFO(wxWindowX11);
784# elif defined(__WXMGL__)
785 info = CLASSINFO(wxWindowMGL);
786# elif defined(__WXPM__)
787 info = CLASSINFO(wxWindowOS2);
788# elif defined(__WXMAC__)
789 info = CLASSINFO(wxWindowMac);
790# elif defined(__WXMOTIF__)
791 info = CLASSINFO(wxWindowMotif);
792# endif
793#else
794 info = CLASSINFO(wxWindow);
795#endif
796
797 if ( m_isWindow != IsKindOf(info) )
798 {
799 wxString msg = GetClassInfo()->GetClassName();
800 msg += _T(" should [not] be a window but it is [not]");
801
802 wxFAIL_MSG( msg );
803 }
804
805#endif // __WXDEBUG__
806
807#endif // wxUSE_GUI
808
809 // allow the application to hook into event processing
810 if ( wxTheApp )
811 {
812 int rc = wxTheApp->FilterEvent(event);
813 if ( rc != -1 )
814 {
815 wxASSERT_MSG( rc == 1 || rc == 0,
816 _T("unexpected wxApp::FilterEvent return value") );
817
818 return rc != 0;
819 }
820 //else: proceed normally
821 }
822
823 // An event handler can be enabled or disabled
824 if ( GetEvtHandlerEnabled() )
825 {
826
827#if 0
828/*
829 What is this? When using GUI threads, a non main
830 threads can send an event and process it itself.
831 This breaks GTK's GUI threads, so please explain.
832*/
833
834 // Check whether we are in a child thread.
835 if ( !wxThread::IsMain() )
836 return ProcessThreadEvent(event);
837#endif
838
839 // Handle per-instance dynamic event tables first
840 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
841 return TRUE;
842
843 // Then static per-class event tables
844 const wxEventTable *table = GetEventTable();
845
846#if wxUSE_GUI && wxUSE_VALIDATORS
847 // Try the associated validator first, if this is a window.
848 // Problem: if the event handler of the window has been replaced,
849 // this wxEvtHandler may no longer be a window.
850 // Therefore validators won't be processed if the handler
851 // has been replaced with SetEventHandler.
852 // THIS CAN BE CURED if PushEventHandler is used instead of
853 // SetEventHandler, and then processing will be passed down the
854 // chain of event handlers.
855 if (m_isWindow)
856 {
857 wxWindow *win = (wxWindow *)this;
858
859 // Can only use the validator of the window which
860 // is receiving the event
861 if ( win == event.GetEventObject() )
862 {
863 wxValidator *validator = win->GetValidator();
864 if ( validator && validator->ProcessEvent(event) )
865 {
866 return TRUE;
867 }
868 }
869 }
870#endif
871
872 // Search upwards through the inheritance hierarchy
873 while (table)
874 {
875 if ( SearchEventTable((wxEventTable&)*table, event) )
876 return TRUE;
877 table = table->baseTable;
878 }
879 }
880
881 // Try going down the event handler chain
882 if ( GetNextHandler() )
883 {
884 if ( GetNextHandler()->ProcessEvent(event) )
885 return TRUE;
886 }
887
888#if wxUSE_GUI
889 // Carry on up the parent-child hierarchy, but only if event is a command
890 // event: it wouldn't make sense for a parent to receive a child's size
891 // event, for example
892 if ( m_isWindow && event.IsCommandEvent() )
893 {
894 wxWindow *win = (wxWindow *)this;
895
896 // honour the requests to stop propagation at this window: this is
897 // used by the dialogs, for example, to prevent processing the events
898 // from the dialog controls in the parent frame which rarely, if ever,
899 // makes sense
900 if ( !(win->GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
901 {
902 wxWindow *parent = win->GetParent();
903 if ( parent && !parent->IsBeingDeleted() )
904 return parent->GetEventHandler()->ProcessEvent(event);
905 }
906 }
907#endif // wxUSE_GUI
908
909 // Last try - application object.
910 if ( wxTheApp && (this != wxTheApp) )
911 {
912 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
913 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
914 // processed appropriately via SearchEventTable.
915 if ( event.GetEventType() != wxEVT_IDLE )
916 {
917 if ( wxTheApp->ProcessEvent(event) )
918 return TRUE;
919 }
920 }
921
922 return FALSE;
923}
924
925bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
926{
927 wxEventType eventType = event.GetEventType();
928 int eventId = event.GetId();
929
930 // BC++ doesn't like testing for m_fn without != 0
931 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
932 {
933 // the line using reference exposes a bug in gcc: although it _seems_
934 // to work, it leads to weird crashes later on during program
935 // execution
936#ifdef __GNUG__
937 wxEventTableEntry entry = table.entries[i];
938#else
939 const wxEventTableEntry& entry = table.entries[i];
940#endif
941
942 // match only if the event type is the same and the id is either -1 in
943 // the event table (meaning "any") or the event id matches the id
944 // specified in the event table either exactly or by falling into
945 // range between first and last
946 if ( eventType == entry.m_eventType )
947 {
948 int tableId1 = entry.m_id,
949 tableId2 = entry.m_lastId;
950
951 if ( (tableId1 == -1) ||
952 (tableId2 == -1 && eventId == tableId1) ||
953 (tableId2 != -1 &&
954 (eventId >= tableId1 && eventId <= tableId2)) )
955 {
956 event.Skip(FALSE);
957 event.m_callbackUserData = entry.m_callbackUserData;
958
959 (this->*((wxEventFunction) (entry.m_fn)))(event);
960
961 return !event.GetSkipped();
962 }
963 }
964 }
965
966 return FALSE;
967}
968
969void wxEvtHandler::Connect( int id, int lastId,
970 int eventType,
971 wxObjectEventFunction func,
972 wxObject *userData )
973{
974#if WXWIN_COMPATIBILITY_EVENT_TYPES
975 wxEventTableEntry *entry = new wxEventTableEntry;
976 entry->m_eventType = eventType;
977 entry->m_id = id;
978 entry->m_lastId = lastId;
979 entry->m_fn = func;
980 entry->m_callbackUserData = userData;
981#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
982 wxDynamicEventTableEntry *entry =
983 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
984#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
985
986 if (!m_dynamicEvents)
987 m_dynamicEvents = new wxList;
988
989 m_dynamicEvents->Append( (wxObject*) entry );
990}
991
992bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
993 wxObjectEventFunction func,
994 wxObject *userData )
995{
996 if (!m_dynamicEvents)
997 return FALSE;
998
999 wxNode *node = m_dynamicEvents->First();
1000 while (node)
1001 {
1002#if WXWIN_COMPATIBILITY_EVENT_TYPES
1003 wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
1004#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1005 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
1006#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1007
1008 if ((entry->m_id == id) &&
1009 ((entry->m_lastId == lastId) || (lastId == -1)) &&
1010 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1011 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1012 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1013 {
1014 if (entry->m_callbackUserData)
1015 delete entry->m_callbackUserData;
1016 m_dynamicEvents->DeleteNode( node );
1017 delete entry;
1018 return TRUE;
1019 }
1020 node = node->Next();
1021 }
1022 return FALSE;
1023}
1024
1025bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1026{
1027 wxCHECK_MSG( m_dynamicEvents, FALSE,
1028 wxT("caller should check that we have dynamic events") );
1029
1030 int commandId = event.GetId();
1031
1032 wxNode *node = m_dynamicEvents->First();
1033 while (node)
1034 {
1035#if WXWIN_COMPATIBILITY_EVENT_TYPES
1036 wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
1037#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1038 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
1039#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1040
1041 if (entry->m_fn)
1042 {
1043 // Match, if event spec says any id will do (id == -1)
1044 if ( (event.GetEventType() == entry->m_eventType) &&
1045 (entry->m_id == -1 ||
1046 (entry->m_lastId == -1 && commandId == entry->m_id) ||
1047 (entry->m_lastId != -1 &&
1048 (commandId >= entry->m_id && commandId <= entry->m_lastId))) )
1049 {
1050 event.Skip(FALSE);
1051 event.m_callbackUserData = entry->m_callbackUserData;
1052
1053 (this->*((wxEventFunction) (entry->m_fn)))(event);
1054
1055 if (event.GetSkipped())
1056 return FALSE;
1057 else
1058 return TRUE;
1059 }
1060 }
1061 node = node->Next();
1062 }
1063 return FALSE;
1064};
1065
1066void wxEvtHandler::DoSetClientObject( wxClientData *data )
1067{
1068 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1069 wxT("can't have both object and void client data") );
1070
1071 if ( m_clientObject )
1072 delete m_clientObject;
1073
1074 m_clientObject = data;
1075 m_clientDataType = wxClientData_Object;
1076}
1077
1078wxClientData *wxEvtHandler::DoGetClientObject() const
1079{
1080 // it's not an error to call GetClientObject() on a window which doesn't
1081 // have client data at all - NULL will be returned
1082 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1083 wxT("this window doesn't have object client data") );
1084
1085 return m_clientObject;
1086}
1087
1088void wxEvtHandler::DoSetClientData( void *data )
1089{
1090 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1091 wxT("can't have both object and void client data") );
1092
1093 m_clientData = data;
1094 m_clientDataType = wxClientData_Void;
1095}
1096
1097void *wxEvtHandler::DoGetClientData() const
1098{
1099 // it's not an error to call GetClientData() on a window which doesn't have
1100 // client data at all - NULL will be returned
1101 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1102 wxT("this window doesn't have void client data") );
1103
1104 return m_clientData;
1105}
1106
1107
1108#if WXWIN_COMPATIBILITY
1109bool wxEvtHandler::OnClose()
1110{
1111 if (GetNextHandler())
1112 return GetNextHandler()->OnClose();
1113 else
1114 return FALSE;
1115}
1116#endif // WXWIN_COMPATIBILITY
1117
1118#if wxUSE_GUI
1119
1120// Find a window with the focus, that is also a descendant of the given window.
1121// This is used to determine the window to initially send commands to.
1122wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1123{
1124 // Process events starting with the window with the focus, if any.
1125 wxWindow* focusWin = wxWindow::FindFocus();
1126 wxWindow* win = focusWin;
1127
1128 // Check if this is a descendant of this frame.
1129 // If not, win will be set to NULL.
1130 while (win)
1131 {
1132 if (win == ancestor)
1133 break;
1134 else
1135 win = win->GetParent();
1136 }
1137 if (win == (wxWindow*) NULL)
1138 focusWin = (wxWindow*) NULL;
1139
1140 return focusWin;
1141}
1142
1143#endif // wxUSE_GUI
wxWidgets (Impactor)