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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#if wxUSE_STOPWATCH
48 #include "wx/stopwatch.h"
49#endif
50#endif // wxUSE_GUI
51
52// ----------------------------------------------------------------------------
53// wxWin macros
54// ----------------------------------------------------------------------------
55
56#if wxUSE_BASE
57 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
58 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
59#endif // wxUSE_BASE
60
61#if wxUSE_GUI
62 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
63 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
64 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
65 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
66 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
67 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
68 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
69 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
70 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
74 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
75 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
78 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
79 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
89 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent)
90 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
91 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
92 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
93 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
94 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
95 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
96 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
97#endif // wxUSE_GUI
98
99#if wxUSE_BASE
100
101const wxEventTable *wxEvtHandler::GetEventTable() const
102 { return &wxEvtHandler::sm_eventTable; }
103
104const wxEventTable wxEvtHandler::sm_eventTable =
105 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
106
107const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
108 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
109
110// ----------------------------------------------------------------------------
111// global variables
112// ----------------------------------------------------------------------------
113
114// To put pending event handlers
115wxList *wxPendingEvents = (wxList *)NULL;
116
117#if wxUSE_THREADS
118 // protects wxPendingEvents list
119 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
120#endif
121
122#if !WXWIN_COMPATIBILITY_EVENT_TYPES
123
124// common event types are defined here, other event types are defined by the
125// components which use them
126
127const wxEventType wxEVT_FIRST = 10000;
128const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
129
130DEFINE_EVENT_TYPE(wxEVT_NULL)
131DEFINE_EVENT_TYPE(wxEVT_IDLE)
132DEFINE_EVENT_TYPE(wxEVT_SOCKET)
133
134#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
135
136#endif // wxUSE_BASE
137
138#if wxUSE_GUI
139
140#if !WXWIN_COMPATIBILITY_EVENT_TYPES
141
142DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
143DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
144DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
145DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
146DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
147DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
148DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
149DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
150DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
151DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
152DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
153DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
154DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
155DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
156DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
157DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
158
159// Sockets and timers send events, too
160DEFINE_EVENT_TYPE(wxEVT_TIMER)
161
162// Mouse event types
163DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
164DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
165DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
166DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
167DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
168DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
169DEFINE_EVENT_TYPE(wxEVT_MOTION)
170DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
171DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
172DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
173DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
174DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
175DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
176DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
177DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
178DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
179
180// Non-client mouse events
181DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
182DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
183DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
184DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
185DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
186DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
187DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
188DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
189DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
190DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
191DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
192DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
193
194// Character input event type
195DEFINE_EVENT_TYPE(wxEVT_CHAR)
196DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
197DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
198DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
199DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
200#if wxUSE_HOTKEY
201DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
202#endif
203
204// Set cursor event
205DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
206
207// wxScrollbar and wxSlider event identifiers
208DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
209DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
210DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
211DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
212DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
213DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
214DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
215DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
216DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL)
217
218// Scroll events from wxWindow
219DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
220DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
221DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
222DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
223DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
224DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
225DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
226DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
227
228// System events
229DEFINE_EVENT_TYPE(wxEVT_SIZE)
230DEFINE_EVENT_TYPE(wxEVT_SIZING)
231DEFINE_EVENT_TYPE(wxEVT_MOVE)
232DEFINE_EVENT_TYPE(wxEVT_MOVING)
233DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
234DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
235DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
236DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
237DEFINE_EVENT_TYPE(wxEVT_POWER)
238DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
239DEFINE_EVENT_TYPE(wxEVT_CREATE)
240DEFINE_EVENT_TYPE(wxEVT_DESTROY)
241DEFINE_EVENT_TYPE(wxEVT_SHOW)
242DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
243DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
244DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
245DEFINE_EVENT_TYPE(wxEVT_PAINT)
246DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
247DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
248DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
249DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
250DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
251DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
252DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
253DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
254DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
255DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
256DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
257DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
258DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
259DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
260DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
261DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
262DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
263DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
264DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
265DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
266DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
267DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
268
269// Generic command events
270// Note: a click is a higher-level event than button down/up
271DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
272DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
273DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
274DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
275DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
276DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
277DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
278
279// Help events
280DEFINE_EVENT_TYPE(wxEVT_HELP)
281DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
282
283#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
284
285#endif // wxUSE_GUI
286
287#if wxUSE_BASE
288
289// ============================================================================
290// implementation
291// ============================================================================
292
293// ----------------------------------------------------------------------------
294// event initialization
295// ----------------------------------------------------------------------------
296
297int wxNewEventType()
298{
299 // MT-FIXME
300 static int s_lastUsedEventType = wxEVT_FIRST;
301
302#if WXWIN_COMPATIBILITY_2
303 // check that we don't overlap with the user-defined types: if it does
304 // happen, the best solution is probably to update the existing code to
305 // use wxNewEventType() instead of wxEVT_USER_FIRST
306 //
307 // due to the uncertainty
308 wxASSERT_MSG( s_lastUsedEventType < wxEVT_USER_FIRST - 1,
309 _T("possible event type conflict") );
310#endif // WXWIN_COMPATIBILITY_2
311
312 return s_lastUsedEventType++;
313}
314
315// ----------------------------------------------------------------------------
316// wxEvent
317// ----------------------------------------------------------------------------
318
319/*
320 * General wxWindows events, covering
321 * all interesting things that might happen (button clicking, resizing,
322 * setting text in widgets, etc.).
323 *
324 * For each completely new event type, derive a new event class.
325 *
326 */
327
328wxEvent::wxEvent(int theId, wxEventType commandType )
329{
330 m_eventType = commandType;
331 m_eventObject = (wxObject *) NULL;
332 m_timeStamp = 0;
333 m_id = theId;
334 m_skipped = FALSE;
335 m_callbackUserData = (wxObject *) NULL;
336 m_isCommandEvent = FALSE;
337}
338
339wxEvent::wxEvent(const wxEvent &src)
340 : wxObject()
341 , m_eventObject(src.m_eventObject)
342 , m_eventType(src.m_eventType)
343 , m_timeStamp(src.m_timeStamp)
344 , m_id(src.m_id)
345 , m_callbackUserData(src.m_callbackUserData)
346 , m_skipped(src.m_skipped)
347 , m_isCommandEvent(src.m_isCommandEvent)
348{
349}
350
351#endif // wxUSE_BASE
352
353#if wxUSE_GUI
354
355/*
356 * Command events
357 *
358 */
359
360wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
361 : wxEvent(theId, commandType)
362{
363 m_clientData = (char *) NULL;
364 m_clientObject = (wxClientData *) NULL;
365 m_extraLong = 0;
366 m_commandInt = 0;
367 m_commandString = wxEmptyString;
368 m_isCommandEvent = TRUE;
369}
370
371/*
372 * UI update events
373 */
374
375#if wxUSE_LONGLONG
376wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
377#endif
378
379long wxUpdateUIEvent::sm_updateInterval = 0;
380
381wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
382
383// Can we update?
384bool wxUpdateUIEvent::CanUpdate(wxWindow* win)
385{
386 // Don't update if we've switched global updating off
387 // and this window doesn't support updates.
388 if (win &&
389 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
390 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
391 return FALSE;
392
393 if (sm_updateInterval == -1)
394 return FALSE;
395 else if (sm_updateInterval == 0)
396 return TRUE;
397 else
398 {
399#if wxUSE_STOPWATCH && wxUSE_LONGLONG
400 wxLongLong now = wxGetLocalTimeMillis();
401 if (now > (sm_lastUpdate + sm_updateInterval))
402 {
403 return TRUE;
404 }
405#else
406 // If we don't have wxStopWatch or wxLongLong, we
407 // should err on the safe side and update now anyway.
408 return TRUE;
409#endif
410 }
411 return FALSE;
412}
413
414// Reset the update time to provide a delay until the next
415// time we should update
416void wxUpdateUIEvent::ResetUpdateTime()
417{
418#if wxUSE_STOPWATCH && wxUSE_LONGLONG
419 if (sm_updateInterval > 0)
420 {
421 wxLongLong now = wxGetLocalTimeMillis();
422 if (now > (sm_lastUpdate + sm_updateInterval))
423 {
424 sm_lastUpdate = now;
425 }
426 }
427#endif
428}
429
430/*
431 * Idle events
432 */
433
434wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
435
436// Can we send an idle event?
437bool wxIdleEvent::CanSend(wxWindow* win)
438{
439 // Don't update if we've switched global updating off
440 // and this window doesn't support updates.
441 if (win &&
442 (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
443 ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
444 return FALSE;
445
446 return TRUE;
447}
448
449/*
450 * Scroll events
451 */
452
453wxScrollEvent::wxScrollEvent(wxEventType commandType,
454 int id,
455 int pos,
456 int orient)
457 : wxCommandEvent(commandType, id)
458{
459 m_extraLong = orient;
460 m_commandInt = pos;
461}
462
463/*
464 * ScrollWin events
465 */
466
467wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
468 int pos,
469 int orient)
470{
471 m_eventType = commandType;
472 m_extraLong = orient;
473 m_commandInt = pos;
474}
475
476/*
477 * Mouse events
478 *
479 */
480
481wxMouseEvent::wxMouseEvent(wxEventType commandType)
482{
483 m_eventType = commandType;
484 m_metaDown = FALSE;
485 m_altDown = FALSE;
486 m_controlDown = FALSE;
487 m_shiftDown = FALSE;
488 m_leftDown = FALSE;
489 m_rightDown = FALSE;
490 m_middleDown = FALSE;
491 m_x = 0;
492 m_y = 0;
493 m_wheelRotation = 0;
494 m_wheelDelta = 0;
495 m_linesPerAction = 0;
496}
497
498void wxMouseEvent::Assign(const wxMouseEvent& event)
499{
500 m_eventType = event.m_eventType;
501
502 m_x = event.m_x;
503 m_y = event.m_y;
504
505 m_leftDown = event.m_leftDown;
506 m_middleDown = event.m_middleDown;
507 m_rightDown = event.m_rightDown;
508
509 m_controlDown = event.m_controlDown;
510 m_shiftDown = event.m_shiftDown;
511 m_altDown = event.m_altDown;
512 m_metaDown = event.m_metaDown;
513
514 m_wheelRotation = event.m_wheelRotation;
515 m_wheelDelta = event.m_wheelDelta;
516 m_linesPerAction = event.m_linesPerAction;
517}
518
519// True if was a button dclick event (1 = left, 2 = middle, 3 = right)
520// or any button dclick event (but = -1)
521bool wxMouseEvent::ButtonDClick(int but) const
522{
523 switch (but)
524 {
525 case -1:
526 return (LeftDClick() || MiddleDClick() || RightDClick());
527 case 1:
528 return LeftDClick();
529 case 2:
530 return MiddleDClick();
531 case 3:
532 return RightDClick();
533 default:
534 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
535 }
536
537 return FALSE;
538}
539
540// True if was a button down event (1 = left, 2 = middle, 3 = right)
541// or any button down event (but = -1)
542bool wxMouseEvent::ButtonDown(int but) const
543{
544 switch (but)
545 {
546 case -1:
547 return (LeftDown() || MiddleDown() || RightDown());
548 case 1:
549 return LeftDown();
550 case 2:
551 return MiddleDown();
552 case 3:
553 return RightDown();
554 default:
555 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
556 }
557
558 return FALSE;
559}
560
561// True if was a button up event (1 = left, 2 = middle, 3 = right)
562// or any button up event (but = -1)
563bool wxMouseEvent::ButtonUp(int but) const
564{
565 switch (but)
566 {
567 case -1:
568 return (LeftUp() || MiddleUp() || RightUp());
569 case 1:
570 return LeftUp();
571 case 2:
572 return MiddleUp();
573 case 3:
574 return RightUp();
575 default:
576 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
577 }
578
579 return FALSE;
580}
581
582// True if the given button is currently changing state
583bool wxMouseEvent::Button(int but) const
584{
585 switch (but)
586 {
587 case -1:
588 return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1));
589 case 1:
590 return (LeftDown() || LeftUp() || LeftDClick());
591 case 2:
592 return (MiddleDown() || MiddleUp() || MiddleDClick());
593 case 3:
594 return (RightDown() || RightUp() || RightDClick());
595 default:
596 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
597 }
598
599 return FALSE;
600}
601
602bool wxMouseEvent::ButtonIsDown(int but) const
603{
604 switch (but)
605 {
606 case -1:
607 return (LeftIsDown() || MiddleIsDown() || RightIsDown());
608 case 1:
609 return LeftIsDown();
610 case 2:
611 return MiddleIsDown();
612 case 3:
613 return RightIsDown();
614 default:
615 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
616 }
617
618 return FALSE;
619}
620
621int wxMouseEvent::GetButton() const
622{
623 for ( int i = 1; i <= 3; i++ )
624 {
625 if ( Button(i) )
626 {
627 return i;
628 }
629 }
630
631 return -1;
632}
633
634// Find the logical position of the event given the DC
635wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
636{
637 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
638 return pt;
639}
640
641
642/*
643 * Keyboard event
644 *
645 */
646
647wxKeyEvent::wxKeyEvent(wxEventType type)
648{
649 m_eventType = type;
650 m_shiftDown = FALSE;
651 m_controlDown = FALSE;
652 m_metaDown = FALSE;
653 m_altDown = FALSE;
654 m_keyCode = 0;
655 m_scanCode = 0;
656#if wxUSE_UNICODE
657 m_uniChar = 0;
658#endif
659}
660
661wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
662 : wxEvent(evt)
663{
664 m_x = evt.m_x;
665 m_y = evt.m_y;
666
667 m_keyCode = evt.m_keyCode;
668
669 m_controlDown = evt.m_controlDown;
670 m_shiftDown = evt.m_shiftDown;
671 m_altDown = evt.m_altDown;
672 m_metaDown = evt.m_metaDown;
673 m_scanCode = evt.m_scanCode;
674 m_rawCode = evt.m_rawCode;
675 m_rawFlags = evt.m_rawFlags;
676
677#if wxUSE_UNICODE
678 m_uniChar = evt.m_uniChar;
679#endif
680}
681
682long wxKeyEvent::KeyCode() const
683{
684 return m_keyCode;
685}
686
687wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
688{
689 SetEventType(wxEVT_CREATE);
690 SetEventObject(win);
691}
692
693wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
694{
695 SetEventType(wxEVT_DESTROY);
696 SetEventObject(win);
697}
698
699wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
700 : wxCommandEvent(wxEVT_CHILD_FOCUS)
701{
702 SetEventObject(win);
703}
704
705#endif // wxUSE_GUI
706
707// ----------------------------------------------------------------------------
708// wxEvtHandler
709// ----------------------------------------------------------------------------
710
711#if wxUSE_BASE
712
713/*
714 * Event handler
715 */
716
717wxEvtHandler::wxEvtHandler()
718{
719 m_nextHandler = (wxEvtHandler *) NULL;
720 m_previousHandler = (wxEvtHandler *) NULL;
721 m_enabled = TRUE;
722 m_dynamicEvents = (wxList *) NULL;
723 m_pendingEvents = (wxList *) NULL;
724#if wxUSE_THREADS
725# if !defined(__VISAGECPP__)
726 m_eventsLocker = new wxCriticalSection;
727# endif
728#endif
729 // no client data (yet)
730 m_clientData = NULL;
731 m_clientDataType = wxClientData_None;
732}
733
734wxEvtHandler::~wxEvtHandler()
735{
736 // Takes itself out of the list of handlers
737 if (m_previousHandler)
738 m_previousHandler->m_nextHandler = m_nextHandler;
739
740 if (m_nextHandler)
741 m_nextHandler->m_previousHandler = m_previousHandler;
742
743 if (m_dynamicEvents)
744 {
745 wxList::iterator it = m_dynamicEvents->begin(),
746 en = m_dynamicEvents->end();
747 for (;it != en; ++it)
748 {
749#if WXWIN_COMPATIBILITY_EVENT_TYPES
750 wxEventTableEntry *entry = (wxEventTableEntry*)*it;
751#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
752 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
753#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
754
755 if (entry->m_callbackUserData)
756 delete entry->m_callbackUserData;
757 delete entry;
758 }
759 delete m_dynamicEvents;
760 };
761
762 delete m_pendingEvents;
763
764#if wxUSE_THREADS
765# if !defined(__VISAGECPP__)
766 delete m_eventsLocker;
767# endif
768
769 // Remove us from wxPendingEvents if necessary.
770 if(wxPendingEventsLocker)
771 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
772 if ( wxPendingEvents ) {
773 wxPendingEvents->DeleteObject(this);
774 }
775 if(wxPendingEventsLocker)
776 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
777#endif
778
779 // we only delete object data, not untyped
780 if ( m_clientDataType == wxClientData_Object )
781 delete m_clientObject;
782}
783
784#if wxUSE_THREADS
785
786bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
787{
788 // check that we are really in a child thread
789 wxASSERT_MSG( !wxThread::IsMain(),
790 wxT("use ProcessEvent() in main thread") );
791
792 AddPendingEvent(event);
793
794 return TRUE;
795}
796
797#endif // wxUSE_THREADS
798
799void wxEvtHandler::AddPendingEvent(wxEvent& event)
800{
801 // 1) Add event to list of pending events of this event handler
802
803 wxEvent *eventCopy = event.Clone();
804
805 // we must be able to copy the events here so the event class must
806 // implement Clone() properly instead of just providing a NULL stab for it
807 wxCHECK_RET( eventCopy,
808 _T("events of this type aren't supposed to be posted") );
809
810#if defined(__VISAGECPP__)
811 wxENTER_CRIT_SECT( m_eventsLocker);
812#else
813 wxENTER_CRIT_SECT( *m_eventsLocker);
814#endif
815
816 if ( !m_pendingEvents )
817 m_pendingEvents = new wxList;
818
819 m_pendingEvents->Append(eventCopy);
820
821#if defined(__VISAGECPP__)
822 wxLEAVE_CRIT_SECT( m_eventsLocker);
823#else
824 wxLEAVE_CRIT_SECT( *m_eventsLocker);
825#endif
826
827 // 2) Add this event handler to list of event handlers that
828 // have pending events.
829
830 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
831
832 if ( !wxPendingEvents )
833 wxPendingEvents = new wxList;
834 wxPendingEvents->Append(this);
835
836 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
837
838 // 3) Inform the system that new pending events are somwehere,
839 // and that these should be processed in idle time.
840 wxWakeUpIdle();
841}
842
843void wxEvtHandler::ProcessPendingEvents()
844{
845#if defined(__VISAGECPP__)
846 wxENTER_CRIT_SECT( m_eventsLocker);
847#else
848 wxENTER_CRIT_SECT( *m_eventsLocker);
849#endif
850
851 wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
852 while ( node )
853 {
854 wxEvent *event = (wxEvent *)node->GetData();
855 m_pendingEvents->Erase(node);
856
857 // In ProcessEvent, new events might get added and
858 // we can safely leave the crtical section here.
859#if defined(__VISAGECPP__)
860 wxLEAVE_CRIT_SECT( m_eventsLocker);
861#else
862 wxLEAVE_CRIT_SECT( *m_eventsLocker);
863#endif
864 ProcessEvent(*event);
865 delete event;
866#if defined(__VISAGECPP__)
867 wxENTER_CRIT_SECT( m_eventsLocker);
868#else
869 wxENTER_CRIT_SECT( *m_eventsLocker);
870#endif
871
872 node = m_pendingEvents->GetFirst();
873 }
874
875#if defined(__VISAGECPP__)
876 wxLEAVE_CRIT_SECT( m_eventsLocker);
877#else
878 wxLEAVE_CRIT_SECT( *m_eventsLocker);
879#endif
880}
881
882/*
883 * Event table stuff
884 */
885
886bool wxEvtHandler::TryParent(wxEvent& event)
887{
888 if ( wxTheApp && (this != wxTheApp) )
889 {
890 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
891 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
892 // processed appropriately via SearchEventTable.
893 if ( event.GetEventType() != wxEVT_IDLE )
894 {
895 if ( wxTheApp->ProcessEvent(event) )
896 return TRUE;
897 }
898 }
899
900 return FALSE;
901}
902
903bool wxEvtHandler::ProcessEvent(wxEvent& event)
904{
905 // allow the application to hook into event processing
906 if ( wxTheApp )
907 {
908 int rc = wxTheApp->FilterEvent(event);
909 if ( rc != -1 )
910 {
911 wxASSERT_MSG( rc == 1 || rc == 0,
912 _T("unexpected wxApp::FilterEvent return value") );
913
914 return rc != 0;
915 }
916 //else: proceed normally
917 }
918
919 // An event handler can be enabled or disabled
920 if ( GetEvtHandlerEnabled() )
921 {
922 // if we have a validator, it has higher priority than our own event
923 // table
924#if wxUSE_VALIDATORS
925 if ( TryValidator(event) )
926 return TRUE;
927#endif // wxUSE_VALIDATORS
928
929 // Handle per-instance dynamic event tables first
930 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
931 return TRUE;
932
933 // Then static per-class event tables (and search upwards through the
934 // inheritance hierarchy)
935 for ( const wxEventTable *table = GetEventTable();
936 table;
937 table = table->baseTable )
938 {
939 if ( SearchEventTable((wxEventTable&)*table, event) )
940 return TRUE;
941 }
942 }
943
944 // Try going down the event handler chain
945 if ( GetNextHandler() )
946 {
947 if ( GetNextHandler()->ProcessEvent(event) )
948 return TRUE;
949 }
950
951 // Finally propagate the event upwards the window chain and/or to the
952 // application object as necessary
953 return TryParent(event);
954}
955
956bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
957{
958 wxEventType eventType = event.GetEventType();
959 int eventId = event.GetId();
960
961 // BC++ doesn't like testing for m_fn without != 0
962 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
963 {
964 // the line using reference exposes a bug in gcc: although it _seems_
965 // to work, it leads to weird crashes later on during program
966 // execution
967#ifdef __GNUG__
968 wxEventTableEntry entry = table.entries[i];
969#else
970 const wxEventTableEntry& entry = table.entries[i];
971#endif
972
973 // match only if the event type is the same and the id is either -1 in
974 // the event table (meaning "any") or the event id matches the id
975 // specified in the event table either exactly or by falling into
976 // range between first and last
977 if ( eventType == entry.m_eventType )
978 {
979 int tableId1 = entry.m_id,
980 tableId2 = entry.m_lastId;
981
982 if ( (tableId1 == -1) ||
983 (tableId2 == -1 && eventId == tableId1) ||
984 (tableId2 != -1 &&
985 (eventId >= tableId1 && eventId <= tableId2)) )
986 {
987 event.Skip(FALSE);
988 event.m_callbackUserData = entry.m_callbackUserData;
989
990 (this->*((wxEventFunction) (entry.m_fn)))(event);
991
992 return !event.GetSkipped();
993 }
994 }
995 }
996
997 return FALSE;
998}
999
1000void wxEvtHandler::Connect( int id, int lastId,
1001 int eventType,
1002 wxObjectEventFunction func,
1003 wxObject *userData,
1004 wxEvtHandler* eventSink )
1005{
1006#if WXWIN_COMPATIBILITY_EVENT_TYPES
1007 wxEventTableEntry *entry = new wxEventTableEntry;
1008 entry->m_eventType = eventType;
1009 entry->m_id = id;
1010 entry->m_lastId = lastId;
1011 entry->m_fn = func;
1012 entry->m_callbackUserData = userData;
1013#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1014 wxDynamicEventTableEntry *entry =
1015 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1016#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1017
1018 if (!m_dynamicEvents)
1019 m_dynamicEvents = new wxList;
1020
1021 // Insert at the front of the list so most recent additions are found first
1022 m_dynamicEvents->Insert( (wxObject*) entry );
1023}
1024
1025bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1026 wxObjectEventFunction func,
1027 wxObject *userData,
1028 wxEvtHandler* eventSink )
1029{
1030 if (!m_dynamicEvents)
1031 return FALSE;
1032
1033 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1034 while (node)
1035 {
1036#if WXWIN_COMPATIBILITY_EVENT_TYPES
1037 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1038#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1039 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1040#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1041
1042 if ((entry->m_id == id) &&
1043 ((entry->m_lastId == lastId) || (lastId == -1)) &&
1044 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1045 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1046 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1047 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1048 {
1049 if (entry->m_callbackUserData)
1050 delete entry->m_callbackUserData;
1051 m_dynamicEvents->Erase( node );
1052 delete entry;
1053 return TRUE;
1054 }
1055 node = node->GetNext();
1056 }
1057 return FALSE;
1058}
1059
1060bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1061{
1062 wxCHECK_MSG( m_dynamicEvents, FALSE,
1063 wxT("caller should check that we have dynamic events") );
1064
1065 int commandId = event.GetId();
1066
1067 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1068 while (node)
1069 {
1070#if WXWIN_COMPATIBILITY_EVENT_TYPES
1071 wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1072#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1073 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1074#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1075
1076 if (entry->m_fn)
1077 {
1078 // Match, if event spec says any id will do (id == -1)
1079 if ( (event.GetEventType() == entry->m_eventType) &&
1080 (entry->m_id == -1 ||
1081 (entry->m_lastId == -1 && commandId == entry->m_id) ||
1082 (entry->m_lastId != -1 &&
1083 (commandId >= entry->m_id && commandId <= entry->m_lastId))) )
1084 {
1085 event.Skip(FALSE);
1086 event.m_callbackUserData = entry->m_callbackUserData;
1087
1088#if !WXWIN_COMPATIBILITY_EVENT_TYPES
1089 if (entry->m_eventSink)
1090 ((entry->m_eventSink)->*((wxEventFunction) (entry->m_fn)))(event);
1091 else
1092#endif
1093 (this->*((wxEventFunction) (entry->m_fn)))(event);
1094
1095 if ( ! event.GetSkipped() )
1096 return TRUE;
1097 }
1098 }
1099 node = node->GetNext();
1100 }
1101 return FALSE;
1102};
1103
1104void wxEvtHandler::DoSetClientObject( wxClientData *data )
1105{
1106 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1107 wxT("can't have both object and void client data") );
1108
1109 if ( m_clientObject )
1110 delete m_clientObject;
1111
1112 m_clientObject = data;
1113 m_clientDataType = wxClientData_Object;
1114}
1115
1116wxClientData *wxEvtHandler::DoGetClientObject() const
1117{
1118 // it's not an error to call GetClientObject() on a window which doesn't
1119 // have client data at all - NULL will be returned
1120 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1121 wxT("this window doesn't have object client data") );
1122
1123 return m_clientObject;
1124}
1125
1126void wxEvtHandler::DoSetClientData( void *data )
1127{
1128 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1129 wxT("can't have both object and void client data") );
1130
1131 m_clientData = data;
1132 m_clientDataType = wxClientData_Void;
1133}
1134
1135void *wxEvtHandler::DoGetClientData() const
1136{
1137 // it's not an error to call GetClientData() on a window which doesn't have
1138 // client data at all - NULL will be returned
1139 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1140 wxT("this window doesn't have void client data") );
1141
1142 return m_clientData;
1143}
1144
1145
1146#if WXWIN_COMPATIBILITY
1147bool wxEvtHandler::OnClose()
1148{
1149 if (GetNextHandler())
1150 return GetNextHandler()->OnClose();
1151 else
1152 return FALSE;
1153}
1154#endif // WXWIN_COMPATIBILITY
1155
1156#endif // wxUSE_BASE
1157
1158#if wxUSE_GUI
1159
1160// Find a window with the focus, that is also a descendant of the given window.
1161// This is used to determine the window to initially send commands to.
1162wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1163{
1164 // Process events starting with the window with the focus, if any.
1165 wxWindow* focusWin = wxWindow::FindFocus();
1166 wxWindow* win = focusWin;
1167
1168 // Check if this is a descendant of this frame.
1169 // If not, win will be set to NULL.
1170 while (win)
1171 {
1172 if (win == ancestor)
1173 break;
1174 else
1175 win = win->GetParent();
1176 }
1177 if (win == (wxWindow*) NULL)
1178 focusWin = (wxWindow*) NULL;
1179
1180 return focusWin;
1181}
1182
1183#endif // wxUSE_GUI
wxWidgets (Impactor)