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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
53 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
54 IMPLEMENT_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(wxSysColourChangedEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
88 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
89 #endif // wxUSE_GUI
90
91 const wxEventTable *wxEvtHandler::GetEventTable() const
92 { return &wxEvtHandler::sm_eventTable; }
93
94 const wxEventTable wxEvtHandler::sm_eventTable =
95 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
96
97 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
98 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
99
100 // ----------------------------------------------------------------------------
101 // global variables
102 // ----------------------------------------------------------------------------
103
104 // To put pending event handlers
105 wxList *wxPendingEvents = (wxList *)NULL;
106
107 #if wxUSE_THREADS
108 // protects wxPendingEvents list
109 wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
110 #endif
111
112 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
113
114 // common event types are defined here, other event types are defined by the
115 // components which use them
116
117 DEFINE_EVENT_TYPE(wxEVT_NULL)
118 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
119 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
120 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
121 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
122 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
123 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
124 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
125 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
126 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
127 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
128 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
129 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
130 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
131 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
132 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
133 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
134
135 // Sockets and timers send events, too
136 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
137 DEFINE_EVENT_TYPE(wxEVT_TIMER)
138
139 // Mouse event types
140 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
141 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
142 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
143 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
144 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
145 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
146 DEFINE_EVENT_TYPE(wxEVT_MOTION)
147 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
148 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
149 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
150 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
151 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
152 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
153 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
154 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
155 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
156
157 // Non-client mouse events
158 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
159 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
160 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
161 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
162 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
163 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
164 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
165 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
166 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
167 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
168 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
169 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
170
171 // Character input event type
172 DEFINE_EVENT_TYPE(wxEVT_CHAR)
173 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
174 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
175 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
176 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
177
178 // Set cursor event
179 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
180
181 // wxScrollbar and wxSlider event identifiers
182 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
183 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
184 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
185 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
186 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
187 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
188 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
189 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
190
191 // Scroll events from wxWindow
192 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
193 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
194 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
195 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
196 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
197 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
198 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
199 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
200
201 // System events
202 DEFINE_EVENT_TYPE(wxEVT_SIZE)
203 DEFINE_EVENT_TYPE(wxEVT_MOVE)
204 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
205 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
206 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
207 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
208 DEFINE_EVENT_TYPE(wxEVT_POWER)
209 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
210 DEFINE_EVENT_TYPE(wxEVT_CREATE)
211 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
212 DEFINE_EVENT_TYPE(wxEVT_SHOW)
213 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
214 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
215 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
216 DEFINE_EVENT_TYPE(wxEVT_PAINT)
217 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
218 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
219 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
220 DEFINE_EVENT_TYPE(wxEVT_MENU_CHAR)
221 DEFINE_EVENT_TYPE(wxEVT_MENU_INIT)
222 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
223 DEFINE_EVENT_TYPE(wxEVT_POPUP_MENU_INIT)
224 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
225 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
226 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
227 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
228 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
229 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
230 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
231 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
232 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
233 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
234 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
235 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
236 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
237 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
238 DEFINE_EVENT_TYPE(wxEVT_IDLE)
239 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
240
241 // Generic command events
242 // Note: a click is a higher-level event than button down/up
243 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
244 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
245 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
246 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
247 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
248 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
249 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
250
251 // Help events
252 DEFINE_EVENT_TYPE(wxEVT_HELP)
253 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
254
255 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
256
257 // ============================================================================
258 // implementation
259 // ============================================================================
260
261 // ----------------------------------------------------------------------------
262 // event initialization
263 // ----------------------------------------------------------------------------
264
265 int wxNewEventType()
266 {
267 // MT-FIXME
268 static int s_lastUsedEventType = wxEVT_FIRST;
269
270 #if WXWIN_COMPATIBILITY_2
271 // check that we don't overlap with the user-defined types: if it does
272 // happen, the best solution is probably to update the existing code to
273 // use wxNewEventType() instead of wxEVT_USER_FIRST
274 //
275 // due to the uncertainty
276 wxASSERT_MSG( s_lastUsedEventType < wxEVT_USER_FIRST - 1,
277 _T("possible event type conflict") );
278 #endif // WXWIN_COMPATIBILITY_2
279
280 return s_lastUsedEventType++;
281 }
282
283 // ----------------------------------------------------------------------------
284 // wxEvent
285 // ----------------------------------------------------------------------------
286
287 /*
288 * General wxWindows events, covering
289 * all interesting things that might happen (button clicking, resizing,
290 * setting text in widgets, etc.).
291 *
292 * For each completely new event type, derive a new event class.
293 *
294 */
295
296 wxEvent::wxEvent(int theId)
297 {
298 m_eventType = wxEVT_NULL;
299 m_eventObject = (wxObject *) NULL;
300 m_timeStamp = 0;
301 m_id = theId;
302 m_skipped = FALSE;
303 m_callbackUserData = (wxObject *) NULL;
304 m_isCommandEvent = FALSE;
305 }
306
307 void wxEvent::CopyObject(wxObject& object_dest) const
308 {
309 wxEvent *obj = (wxEvent *)&object_dest;
310 wxObject::CopyObject(object_dest);
311
312 obj->m_eventType = m_eventType;
313 obj->m_eventObject = m_eventObject;
314 obj->m_timeStamp = m_timeStamp;
315 obj->m_id = m_id;
316 obj->m_skipped = m_skipped;
317 obj->m_callbackUserData = m_callbackUserData;
318 obj->m_isCommandEvent = m_isCommandEvent;
319 }
320
321 #if wxUSE_GUI
322
323 /*
324 * Command events
325 *
326 */
327
328 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
329 {
330 m_eventType = commandType;
331 m_clientData = (char *) NULL;
332 m_clientObject = (wxClientData *) NULL;
333 m_extraLong = 0;
334 m_commandInt = 0;
335 m_id = theId;
336 m_commandString = wxEmptyString;
337 m_isCommandEvent = TRUE;
338 }
339
340 void wxCommandEvent::CopyObject(wxObject& obj_d) const
341 {
342 wxCommandEvent *obj = (wxCommandEvent *)&obj_d;
343
344 wxEvent::CopyObject(obj_d);
345
346 obj->m_clientData = m_clientData;
347 obj->m_clientObject = m_clientObject;
348 obj->m_extraLong = m_extraLong;
349 obj->m_commandInt = m_commandInt;
350 obj->m_commandString = m_commandString;
351 }
352
353 /*
354 * Notify events
355 */
356
357 void wxNotifyEvent::CopyObject(wxObject& obj_d) const
358 {
359 wxNotifyEvent *obj = (wxNotifyEvent *)&obj_d;
360
361 wxEvent::CopyObject(obj_d);
362
363 if (!m_bAllow) obj->Veto();
364 }
365
366 /*
367 * Scroll events
368 */
369
370 wxScrollEvent::wxScrollEvent(wxEventType commandType,
371 int id,
372 int pos,
373 int orient)
374 : wxCommandEvent(commandType, id)
375 {
376 m_extraLong = orient;
377 m_commandInt = pos;
378 }
379
380 /*
381 * ScrollWin events
382 */
383
384 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
385 int pos,
386 int orient)
387 {
388 m_eventType = commandType;
389 m_extraLong = orient;
390 m_commandInt = pos;
391 }
392
393 void wxScrollWinEvent::CopyObject(wxObject& obj_d) const
394 {
395 wxScrollWinEvent *obj = (wxScrollWinEvent*)&obj_d;
396
397 wxEvent::CopyObject(obj_d);
398
399 obj->m_extraLong = m_extraLong;
400 obj->m_commandInt = m_commandInt;
401 }
402
403 /*
404 * Mouse events
405 *
406 */
407
408 wxMouseEvent::wxMouseEvent(wxEventType commandType)
409 {
410 m_eventType = commandType;
411 m_metaDown = FALSE;
412 m_altDown = FALSE;
413 m_controlDown = FALSE;
414 m_shiftDown = FALSE;
415 m_leftDown = FALSE;
416 m_rightDown = FALSE;
417 m_middleDown = FALSE;
418 m_x = 0;
419 m_y = 0;
420 m_wheelRotation = 0;
421 m_wheelDelta = 0;
422 m_linesPerAction = 0;
423 }
424
425 void wxMouseEvent::CopyObject(wxObject& obj_d) const
426 {
427 wxMouseEvent *obj = (wxMouseEvent *)&obj_d;
428
429 wxEvent::CopyObject(obj_d);
430
431 obj->m_metaDown = m_metaDown;
432 obj->m_altDown = m_altDown;
433 obj->m_controlDown = m_controlDown;
434 obj->m_shiftDown = m_shiftDown;
435 obj->m_leftDown = m_leftDown;
436 obj->m_rightDown = m_rightDown;
437 obj->m_middleDown = m_middleDown;
438 obj->m_x = m_x;
439 obj->m_y = m_y;
440 }
441
442 // True if was a button dclick event (1 = left, 2 = middle, 3 = right)
443 // or any button dclick event (but = -1)
444 bool wxMouseEvent::ButtonDClick(int but) const
445 {
446 switch (but)
447 {
448 case -1:
449 return (LeftDClick() || MiddleDClick() || RightDClick());
450 case 1:
451 return LeftDClick();
452 case 2:
453 return MiddleDClick();
454 case 3:
455 return RightDClick();
456 default:
457 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
458 }
459
460 return FALSE;
461 }
462
463 // True if was a button down event (1 = left, 2 = middle, 3 = right)
464 // or any button down event (but = -1)
465 bool wxMouseEvent::ButtonDown(int but) const
466 {
467 switch (but)
468 {
469 case -1:
470 return (LeftDown() || MiddleDown() || RightDown());
471 case 1:
472 return LeftDown();
473 case 2:
474 return MiddleDown();
475 case 3:
476 return RightDown();
477 default:
478 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
479 }
480
481 return FALSE;
482 }
483
484 // True if was a button up event (1 = left, 2 = middle, 3 = right)
485 // or any button up event (but = -1)
486 bool wxMouseEvent::ButtonUp(int but) const
487 {
488 switch (but)
489 {
490 case -1:
491 return (LeftUp() || MiddleUp() || RightUp());
492 case 1:
493 return LeftUp();
494 case 2:
495 return MiddleUp();
496 case 3:
497 return RightUp();
498 default:
499 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
500 }
501
502 return FALSE;
503 }
504
505 // True if the given button is currently changing state
506 bool wxMouseEvent::Button(int but) const
507 {
508 switch (but)
509 {
510 case -1:
511 return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1));
512 case 1:
513 return (LeftDown() || LeftUp() || LeftDClick());
514 case 2:
515 return (MiddleDown() || MiddleUp() || MiddleDClick());
516 case 3:
517 return (RightDown() || RightUp() || RightDClick());
518 default:
519 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
520 }
521
522 return FALSE;
523 }
524
525 bool wxMouseEvent::ButtonIsDown(int but) const
526 {
527 switch (but)
528 {
529 case -1:
530 return (LeftIsDown() || MiddleIsDown() || RightIsDown());
531 case 1:
532 return LeftIsDown();
533 case 2:
534 return MiddleIsDown();
535 case 3:
536 return RightIsDown();
537 default:
538 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
539 }
540
541 return FALSE;
542 }
543
544 int wxMouseEvent::GetButton() const
545 {
546 for ( int i = 1; i <= 3; i++ )
547 {
548 if ( Button(i) )
549 {
550 return i;
551 }
552 }
553
554 return -1;
555 }
556
557 // Find the logical position of the event given the DC
558 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
559 {
560 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
561 return pt;
562 }
563
564
565 /*
566 * Keyboard events
567 *
568 */
569
570 wxKeyEvent::wxKeyEvent(wxEventType type)
571 {
572 m_eventType = type;
573 m_shiftDown = FALSE;
574 m_controlDown = FALSE;
575 m_metaDown = FALSE;
576 m_altDown = FALSE;
577 m_keyCode = 0;
578 m_scanCode = 0;
579 }
580
581 void wxKeyEvent::CopyObject(wxObject& obj_d) const
582 {
583 wxKeyEvent *obj = (wxKeyEvent *)&obj_d;
584 wxEvent::CopyObject(obj_d);
585
586 obj->m_x = m_x;
587 obj->m_y = m_y;
588 obj->m_keyCode = m_keyCode;
589
590 obj->m_shiftDown = m_shiftDown;
591 obj->m_controlDown = m_controlDown;
592 obj->m_metaDown = m_metaDown;
593 obj->m_altDown = m_altDown;
594 obj->m_keyCode = m_keyCode;
595 }
596
597
598 /*
599 * Misc events
600 */
601
602 void wxSizeEvent::CopyObject(wxObject& obj_d) const
603 {
604 wxSizeEvent *obj = (wxSizeEvent *)&obj_d;
605 wxEvent::CopyObject(obj_d);
606
607 obj->m_size = m_size;
608 }
609
610 void wxMoveEvent::CopyObject(wxObject& obj_d) const
611 {
612 wxMoveEvent *obj = (wxMoveEvent *)&obj_d;
613 wxEvent::CopyObject(obj_d);
614
615 obj->m_pos = m_pos;
616 }
617
618 void wxEraseEvent::CopyObject(wxObject& obj_d) const
619 {
620 wxEraseEvent *obj = (wxEraseEvent *)&obj_d;
621 wxEvent::CopyObject(obj_d);
622
623 obj->m_dc = m_dc;
624 }
625
626 void wxActivateEvent::CopyObject(wxObject& obj_d) const
627 {
628 wxActivateEvent *obj = (wxActivateEvent *)&obj_d;
629 wxEvent::CopyObject(obj_d);
630
631 obj->m_active = m_active;
632 }
633
634 void wxMenuEvent::CopyObject(wxObject& obj_d) const
635 {
636 wxMenuEvent *obj = (wxMenuEvent *)&obj_d;
637 wxEvent::CopyObject(obj_d);
638
639 obj->m_menuId = m_menuId;
640 }
641
642 void wxCloseEvent::CopyObject(wxObject& obj_d) const
643 {
644 wxCloseEvent *obj = (wxCloseEvent *)&obj_d;
645 wxEvent::CopyObject(obj_d);
646
647 obj->m_loggingOff = m_loggingOff;
648 obj->m_veto = m_veto;
649 #if WXWIN_COMPATIBILITY
650 obj->m_force = m_force;
651 #endif
652 obj->m_canVeto = m_canVeto;
653 }
654
655 void wxShowEvent::CopyObject(wxObject& obj_d) const
656 {
657 wxShowEvent *obj = (wxShowEvent *)&obj_d;
658 wxEvent::CopyObject(obj_d);
659
660 obj->m_show = m_show;
661 }
662
663 void wxJoystickEvent::CopyObject(wxObject& obj_d) const
664 {
665 wxJoystickEvent *obj = (wxJoystickEvent *)&obj_d;
666 wxEvent::CopyObject(obj_d);
667
668 obj->m_pos = m_pos;
669 obj->m_zPosition = m_zPosition;
670 obj->m_buttonChange = m_buttonChange;
671 obj->m_buttonState = m_buttonState;
672 obj->m_joyStick = m_joyStick;
673 }
674
675 void wxDropFilesEvent::CopyObject(wxObject& obj_d) const
676 {
677 wxDropFilesEvent *obj = (wxDropFilesEvent *)&obj_d;
678 wxEvent::CopyObject(obj_d);
679
680 obj->m_noFiles = m_noFiles;
681 obj->m_pos = m_pos;
682 // TODO: Problem with obj->m_files. It should be deallocated by the
683 // destructor of the event.
684 }
685
686 void wxUpdateUIEvent::CopyObject(wxObject &obj_d) const
687 {
688 wxUpdateUIEvent *obj = (wxUpdateUIEvent *)&obj_d;
689 wxEvent::CopyObject(obj_d);
690
691 obj->m_checked = m_checked;
692 obj->m_enabled = m_enabled;
693 obj->m_text = m_text;
694 obj->m_setText = m_setText;
695 obj->m_setChecked = m_setChecked;
696 obj->m_setEnabled = m_setEnabled;
697 }
698
699 void wxPaletteChangedEvent::CopyObject(wxObject &obj_d) const
700 {
701 wxPaletteChangedEvent *obj = (wxPaletteChangedEvent *)&obj_d;
702 wxEvent::CopyObject(obj_d);
703
704 obj->m_changedWindow = m_changedWindow;
705 }
706
707 void wxQueryNewPaletteEvent::CopyObject(wxObject& obj_d) const
708 {
709 wxQueryNewPaletteEvent *obj = (wxQueryNewPaletteEvent *)&obj_d;
710 wxEvent::CopyObject(obj_d);
711
712 obj->m_paletteRealized = m_paletteRealized;
713 }
714
715 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
716 {
717 SetEventType(wxEVT_CREATE);
718 SetEventObject(win);
719 }
720
721 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
722 {
723 SetEventType(wxEVT_DESTROY);
724 SetEventObject(win);
725 }
726
727 void wxIdleEvent::CopyObject(wxObject& obj_d) const
728 {
729 wxIdleEvent *obj = (wxIdleEvent *)&obj_d;
730 wxEvent::CopyObject(obj_d);
731
732 obj->m_requestMore = m_requestMore;
733 }
734
735 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
736 : wxCommandEvent(wxEVT_CHILD_FOCUS)
737 {
738 SetEventObject(win);
739 }
740
741 #endif // wxUSE_GUI
742
743 // ----------------------------------------------------------------------------
744 // wxEvtHandler
745 // ----------------------------------------------------------------------------
746
747 /*
748 * Event handler
749 */
750
751 wxEvtHandler::wxEvtHandler()
752 {
753 m_nextHandler = (wxEvtHandler *) NULL;
754 m_previousHandler = (wxEvtHandler *) NULL;
755 m_enabled = TRUE;
756 m_dynamicEvents = (wxList *) NULL;
757 m_isWindow = FALSE;
758 m_pendingEvents = (wxList *) NULL;
759 #if wxUSE_THREADS
760 # if !defined(__VISAGECPP__)
761 m_eventsLocker = new wxCriticalSection;
762 # endif
763 #endif
764 }
765
766 wxEvtHandler::~wxEvtHandler()
767 {
768 // Takes itself out of the list of handlers
769 if (m_previousHandler)
770 m_previousHandler->m_nextHandler = m_nextHandler;
771
772 if (m_nextHandler)
773 m_nextHandler->m_previousHandler = m_previousHandler;
774
775 if (m_dynamicEvents)
776 {
777 wxNode *node = m_dynamicEvents->First();
778 while (node)
779 {
780 #if WXWIN_COMPATIBILITY_EVENT_TYPES
781 wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
782 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
783 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
784 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
785
786 if (entry->m_callbackUserData)
787 delete entry->m_callbackUserData;
788 delete entry;
789 node = node->Next();
790 }
791 delete m_dynamicEvents;
792 };
793
794 delete m_pendingEvents;
795
796 #if wxUSE_THREADS
797 # if !defined(__VISAGECPP__)
798 delete m_eventsLocker;
799 # endif
800 #endif
801 }
802
803 #if wxUSE_THREADS
804
805 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
806 {
807 // check that we are really in a child thread
808 wxASSERT_MSG( !wxThread::IsMain(),
809 wxT("use ProcessEvent() in main thread") );
810
811 AddPendingEvent(event);
812
813 return TRUE;
814 }
815
816 #endif // wxUSE_THREADS
817
818 void wxEvtHandler::AddPendingEvent(wxEvent& event)
819 {
820 // 1) Add event to list of pending events of this event handler
821
822 #if defined(__VISAGECPP__)
823 wxENTER_CRIT_SECT( m_eventsLocker);
824 #else
825 wxENTER_CRIT_SECT( *m_eventsLocker);
826 #endif
827
828 if ( !m_pendingEvents )
829 m_pendingEvents = new wxList;
830
831 wxEvent *event2 = (wxEvent *)event.Clone();
832
833 m_pendingEvents->Append(event2);
834
835 #if defined(__VISAGECPP__)
836 wxLEAVE_CRIT_SECT( m_eventsLocker);
837 #else
838 wxLEAVE_CRIT_SECT( *m_eventsLocker);
839 #endif
840
841 // 2) Add this event handler to list of event handlers that
842 // have pending events.
843
844 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
845
846 if ( !wxPendingEvents )
847 wxPendingEvents = new wxList;
848 wxPendingEvents->Append(this);
849
850 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
851
852 // 3) Inform the system that new pending events are somwehere,
853 // and that these should be processed in idle time.
854 wxWakeUpIdle();
855 }
856
857 void wxEvtHandler::ProcessPendingEvents()
858 {
859 #if defined(__VISAGECPP__)
860 wxENTER_CRIT_SECT( m_eventsLocker);
861 #else
862 wxENTER_CRIT_SECT( *m_eventsLocker);
863 #endif
864
865 wxNode *node = m_pendingEvents->First();
866 while ( node )
867 {
868 wxEvent *event = (wxEvent *)node->Data();
869 delete node;
870
871 // In ProcessEvent, new events might get added and
872 // we can safely leave the crtical section here.
873 #if defined(__VISAGECPP__)
874 wxLEAVE_CRIT_SECT( m_eventsLocker);
875 #else
876 wxLEAVE_CRIT_SECT( *m_eventsLocker);
877 #endif
878 ProcessEvent(*event);
879 delete event;
880 #if defined(__VISAGECPP__)
881 wxENTER_CRIT_SECT( m_eventsLocker);
882 #else
883 wxENTER_CRIT_SECT( *m_eventsLocker);
884 #endif
885
886 node = m_pendingEvents->First();
887 }
888
889 #if defined(__VISAGECPP__)
890 wxLEAVE_CRIT_SECT( m_eventsLocker);
891 #else
892 wxLEAVE_CRIT_SECT( *m_eventsLocker);
893 #endif
894 }
895
896 /*
897 * Event table stuff
898 */
899
900 bool wxEvtHandler::ProcessEvent(wxEvent& event)
901 {
902 #if wxUSE_GUI
903
904 // We have to use the actual window or processing events from wxWindowNative
905 // destructor won't work (we don't see the wxWindow class)
906 #ifdef __WXDEBUG__
907 // check that our flag corresponds to reality
908 wxClassInfo* info = NULL;
909 #ifdef __WXUNIVERSAL__
910 # if defined(__WXMSW__)
911 info = CLASSINFO(wxWindowMSW);
912 # elif defined(__WXGTK__)
913 info = CLASSINFO(wxWindowGTK);
914 # elif defined(__WXMGL__)
915 info = CLASSINFO(wxWindowMGL);
916 # elif defined(__WXMAC__)
917 info = CLASSINFO(wxWindowMac);
918 # elif defined(__WXMOTIF__)
919 info = CLASSINFO(wxWindowMotif);
920 # endif
921 #else
922 info = CLASSINFO(wxWindow);
923 #endif
924
925 wxASSERT_MSG( m_isWindow == IsKindOf(info),
926 _T("this should [not] be a window but it is [not]") );
927 #endif
928
929 #endif // wxUSE_GUI
930
931 // An event handler can be enabled or disabled
932 if ( GetEvtHandlerEnabled() )
933 {
934
935 #if 0
936 /*
937 What is this? When using GUI threads, a non main
938 threads can send an event and process it itself.
939 This breaks GTK's GUI threads, so please explain.
940 */
941
942 // Check whether we are in a child thread.
943 if ( !wxThread::IsMain() )
944 return ProcessThreadEvent(event);
945 #endif
946
947 // Handle per-instance dynamic event tables first
948 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
949 return TRUE;
950
951 // Then static per-class event tables
952 const wxEventTable *table = GetEventTable();
953
954 #if wxUSE_GUI && wxUSE_VALIDATORS
955 // Try the associated validator first, if this is a window.
956 // Problem: if the event handler of the window has been replaced,
957 // this wxEvtHandler may no longer be a window.
958 // Therefore validators won't be processed if the handler
959 // has been replaced with SetEventHandler.
960 // THIS CAN BE CURED if PushEventHandler is used instead of
961 // SetEventHandler, and then processing will be passed down the
962 // chain of event handlers.
963 if (m_isWindow)
964 {
965 wxWindow *win = (wxWindow *)this;
966
967 // Can only use the validator of the window which
968 // is receiving the event
969 if ( win == event.GetEventObject() )
970 {
971 wxValidator *validator = win->GetValidator();
972 if ( validator && validator->ProcessEvent(event) )
973 {
974 return TRUE;
975 }
976 }
977 }
978 #endif
979
980 // Search upwards through the inheritance hierarchy
981 while (table)
982 {
983 if ( SearchEventTable((wxEventTable&)*table, event) )
984 return TRUE;
985 table = table->baseTable;
986 }
987 }
988
989 // Try going down the event handler chain
990 if ( GetNextHandler() )
991 {
992 if ( GetNextHandler()->ProcessEvent(event) )
993 return TRUE;
994 }
995
996 #if wxUSE_GUI
997 // Carry on up the parent-child hierarchy, but only if event is a command
998 // event: it wouldn't make sense for a parent to receive a child's size
999 // event, for example
1000 if ( m_isWindow && event.IsCommandEvent() )
1001 {
1002 wxWindow *win = (wxWindow *)this;
1003
1004 // also, don't propagate events beyond the first top level window: it
1005 // doesn't make sense to process dialogs events in the parent frame
1006 if ( !win->IsTopLevel() )
1007 {
1008 wxWindow *parent = win->GetParent();
1009 if (parent && !parent->IsBeingDeleted())
1010 return parent->GetEventHandler()->ProcessEvent(event);
1011 }
1012 }
1013 #endif // wxUSE_GUI
1014
1015 // Last try - application object.
1016 if ( wxTheApp && (this != wxTheApp) )
1017 {
1018 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1019 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1020 // processed appropriately via SearchEventTable.
1021 if ( event.GetEventType() != wxEVT_IDLE )
1022 {
1023 if ( wxTheApp->ProcessEvent(event) )
1024 return TRUE;
1025 }
1026 }
1027
1028 return FALSE;
1029 }
1030
1031 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1032 {
1033 wxEventType eventType = event.GetEventType();
1034 int eventId = event.GetId();
1035
1036 // BC++ doesn't like testing for m_fn without != 0
1037 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1038 {
1039 // the line using reference exposes a bug in gcc: although it _seems_
1040 // to work, it leads to weird crashes later on during program
1041 // execution
1042 #ifdef __GNUG__
1043 wxEventTableEntry entry = table.entries[i];
1044 #else
1045 const wxEventTableEntry& entry = table.entries[i];
1046 #endif
1047
1048 // match only if the event type is the same and the id is either -1 in
1049 // the event table (meaning "any") or the event id matches the id
1050 // specified in the event table either exactly or by falling into
1051 // range between first and last
1052 if ( eventType == entry.m_eventType )
1053 {
1054 int tableId1 = entry.m_id,
1055 tableId2 = entry.m_lastId;
1056
1057 if ( (tableId1 == -1) ||
1058 (tableId2 == -1 && eventId == tableId1) ||
1059 (tableId2 != -1 &&
1060 (eventId >= tableId1 && eventId <= tableId2)) )
1061 {
1062 event.Skip(FALSE);
1063 event.m_callbackUserData = entry.m_callbackUserData;
1064
1065 (this->*((wxEventFunction) (entry.m_fn)))(event);
1066
1067 return !event.GetSkipped();
1068 }
1069 }
1070 }
1071
1072 return FALSE;
1073 }
1074
1075 void wxEvtHandler::Connect( int id, int lastId,
1076 int eventType,
1077 wxObjectEventFunction func,
1078 wxObject *userData )
1079 {
1080 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1081 wxEventTableEntry *entry = new wxEventTableEntry;
1082 entry->m_eventType = eventType;
1083 entry->m_id = id;
1084 entry->m_lastId = lastId;
1085 entry->m_fn = func;
1086 entry->m_callbackUserData = userData;
1087 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1088 wxDynamicEventTableEntry *entry =
1089 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
1090 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1091
1092 if (!m_dynamicEvents)
1093 m_dynamicEvents = new wxList;
1094
1095 m_dynamicEvents->Append( (wxObject*) entry );
1096 }
1097
1098 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1099 wxObjectEventFunction func,
1100 wxObject *userData )
1101 {
1102 if (!m_dynamicEvents)
1103 return FALSE;
1104
1105 wxNode *node = m_dynamicEvents->First();
1106 while (node)
1107 {
1108 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1109 wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
1110 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1111 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
1112 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1113
1114 if ((entry->m_id == id) &&
1115 ((entry->m_lastId == lastId) || (lastId == -1)) &&
1116 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1117 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1118 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1119 {
1120 if (entry->m_callbackUserData)
1121 delete entry->m_callbackUserData;
1122 m_dynamicEvents->DeleteNode( node );
1123 delete entry;
1124 return TRUE;
1125 }
1126 node = node->Next();
1127 }
1128 return FALSE;
1129 }
1130
1131 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1132 {
1133 wxCHECK_MSG( m_dynamicEvents, FALSE,
1134 wxT("caller should check that we have dynamic events") );
1135
1136 int commandId = event.GetId();
1137
1138 wxNode *node = m_dynamicEvents->First();
1139 while (node)
1140 {
1141 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1142 wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
1143 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1144 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
1145 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1146
1147 if (entry->m_fn)
1148 {
1149 // Match, if event spec says any id will do (id == -1)
1150 if ( (event.GetEventType() == entry->m_eventType) &&
1151 (entry->m_id == -1 ||
1152 (entry->m_lastId == -1 && commandId == entry->m_id) ||
1153 (entry->m_lastId != -1 &&
1154 (commandId >= entry->m_id && commandId <= entry->m_lastId))) )
1155 {
1156 event.Skip(FALSE);
1157 event.m_callbackUserData = entry->m_callbackUserData;
1158
1159 (this->*((wxEventFunction) (entry->m_fn)))(event);
1160
1161 if (event.GetSkipped())
1162 return FALSE;
1163 else
1164 return TRUE;
1165 }
1166 }
1167 node = node->Next();
1168 }
1169 return FALSE;
1170 };
1171
1172 #if WXWIN_COMPATIBILITY
1173 bool wxEvtHandler::OnClose()
1174 {
1175 if (GetNextHandler())
1176 return GetNextHandler()->OnClose();
1177 else
1178 return FALSE;
1179 }
1180 #endif // WXWIN_COMPATIBILITY
1181
1182 #if wxUSE_GUI
1183
1184 // Find a window with the focus, that is also a descendant of the given window.
1185 // This is used to determine the window to initially send commands to.
1186 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1187 {
1188 // Process events starting with the window with the focus, if any.
1189 wxWindow* focusWin = wxWindow::FindFocus();
1190 wxWindow* win = focusWin;
1191
1192 // Check if this is a descendant of this frame.
1193 // If not, win will be set to NULL.
1194 while (win)
1195 {
1196 if (win == ancestor)
1197 break;
1198 else
1199 win = win->GetParent();
1200 }
1201 if (win == (wxWindow*) NULL)
1202 focusWin = (wxWindow*) NULL;
1203
1204 return focusWin;
1205 }
1206
1207 #endif // wxUSE_GUI