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Include wx/list.h according to precompiled headers of wx/wx.h (with other minor clean...
[wxWidgets.git] / src / common / wincmn.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/window.cpp
3 // Purpose: common (to all ports) wxWindow functions
4 // Author: Julian Smart, Vadim Zeitlin
5 // Modified by:
6 // Created: 13/07/98
7 // RCS-ID: $Id$
8 // Copyright: (c) wxWidgets team
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #ifndef WX_PRECOMP
28 #include "wx/string.h"
29 #include "wx/log.h"
30 #include "wx/intl.h"
31 #include "wx/frame.h"
32 #include "wx/window.h"
33 #include "wx/control.h"
34 #include "wx/checkbox.h"
35 #include "wx/radiobut.h"
36 #include "wx/statbox.h"
37 #include "wx/textctrl.h"
38 #include "wx/settings.h"
39 #include "wx/dialog.h"
40 #include "wx/msgdlg.h"
41 #include "wx/statusbr.h"
42 #include "wx/toolbar.h"
43 #include "wx/dcclient.h"
44 #endif //WX_PRECOMP
45
46 #if defined(__WXMAC__) && wxUSE_SCROLLBAR
47 #include "wx/scrolbar.h"
48 #endif
49
50 #if wxUSE_CONSTRAINTS
51 #include "wx/layout.h"
52 #endif // wxUSE_CONSTRAINTS
53
54 #include "wx/sizer.h"
55
56 #if wxUSE_DRAG_AND_DROP
57 #include "wx/dnd.h"
58 #endif // wxUSE_DRAG_AND_DROP
59
60 #if wxUSE_ACCESSIBILITY
61 #include "wx/access.h"
62 #endif
63
64 #if wxUSE_HELP
65 #include "wx/cshelp.h"
66 #endif // wxUSE_HELP
67
68 #if wxUSE_TOOLTIPS
69 #include "wx/tooltip.h"
70 #endif // wxUSE_TOOLTIPS
71
72 #if wxUSE_CARET
73 #include "wx/caret.h"
74 #endif // wxUSE_CARET
75
76 #if wxUSE_SYSTEM_OPTIONS
77 #include "wx/sysopt.h"
78 #endif
79
80 // For reporting compile- and runtime version of GTK+ in the ctrl+alt+mclick dialog.
81 // The gtk includes don't pull any other headers in, at least not on my system - MR
82 #ifdef __WXGTK__
83 #ifdef __WXGTK20__
84 #include <gtk/gtkversion.h>
85 #else
86 #include <gtk/gtkfeatures.h>
87 #endif
88 extern const unsigned int gtk_major_version;
89 extern const unsigned int gtk_minor_version;
90 extern const unsigned int gtk_micro_version;
91 #endif
92
93 // ----------------------------------------------------------------------------
94 // static data
95 // ----------------------------------------------------------------------------
96
97 #if defined(__WXPALMOS__)
98 int wxWindowBase::ms_lastControlId = 32767;
99 #elif defined(__WXPM__)
100 int wxWindowBase::ms_lastControlId = 2000;
101 #else
102 int wxWindowBase::ms_lastControlId = -200;
103 #endif
104
105 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
106
107 // ----------------------------------------------------------------------------
108 // event table
109 // ----------------------------------------------------------------------------
110
111 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
112 EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
113 EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
114 EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
115
116 #if wxUSE_HELP
117 EVT_HELP(wxID_ANY, wxWindowBase::OnHelp)
118 #endif // wxUSE_HELP
119
120 END_EVENT_TABLE()
121
122 // ============================================================================
123 // implementation of the common functionality of the wxWindow class
124 // ============================================================================
125
126 // ----------------------------------------------------------------------------
127 // initialization
128 // ----------------------------------------------------------------------------
129
130 // the default initialization
131 wxWindowBase::wxWindowBase()
132 {
133 // no window yet, no parent nor children
134 m_parent = (wxWindow *)NULL;
135 m_windowId = wxID_ANY;
136
137 // no constraints on the minimal window size
138 m_minWidth =
139 m_maxWidth = wxDefaultCoord;
140 m_minHeight =
141 m_maxHeight = wxDefaultCoord;
142
143 // invalidiated cache value
144 m_bestSizeCache = wxDefaultSize;
145
146 // window are created enabled and visible by default
147 m_isShown =
148 m_isEnabled = true;
149
150 // the default event handler is just this window
151 m_eventHandler = this;
152
153 #if wxUSE_VALIDATORS
154 // no validator
155 m_windowValidator = (wxValidator *) NULL;
156 #endif // wxUSE_VALIDATORS
157
158 // the colours/fonts are default for now, so leave m_font,
159 // m_backgroundColour and m_foregroundColour uninitialized and set those
160 m_hasBgCol =
161 m_hasFgCol =
162 m_hasFont = false;
163 m_inheritBgCol =
164 m_inheritFgCol =
165 m_inheritFont = false;
166
167 // no style bits
168 m_exStyle =
169 m_windowStyle = 0;
170
171 m_backgroundStyle = wxBG_STYLE_SYSTEM;
172
173 #if wxUSE_CONSTRAINTS
174 // no constraints whatsoever
175 m_constraints = (wxLayoutConstraints *) NULL;
176 m_constraintsInvolvedIn = (wxWindowList *) NULL;
177 #endif // wxUSE_CONSTRAINTS
178
179 m_windowSizer = (wxSizer *) NULL;
180 m_containingSizer = (wxSizer *) NULL;
181 m_autoLayout = false;
182
183 #if wxUSE_DRAG_AND_DROP
184 m_dropTarget = (wxDropTarget *)NULL;
185 #endif // wxUSE_DRAG_AND_DROP
186
187 #if wxUSE_TOOLTIPS
188 m_tooltip = (wxToolTip *)NULL;
189 #endif // wxUSE_TOOLTIPS
190
191 #if wxUSE_CARET
192 m_caret = (wxCaret *)NULL;
193 #endif // wxUSE_CARET
194
195 #if wxUSE_PALETTE
196 m_hasCustomPalette = false;
197 #endif // wxUSE_PALETTE
198
199 #if wxUSE_ACCESSIBILITY
200 m_accessible = NULL;
201 #endif
202
203 m_virtualSize = wxDefaultSize;
204
205 m_minVirtualWidth =
206 m_maxVirtualWidth = wxDefaultCoord;
207 m_minVirtualHeight =
208 m_maxVirtualHeight = wxDefaultCoord;
209
210 m_windowVariant = wxWINDOW_VARIANT_NORMAL;
211 #if wxUSE_SYSTEM_OPTIONS
212 if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) )
213 {
214 m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ;
215 }
216 #endif
217
218 // Whether we're using the current theme for this window (wxGTK only for now)
219 m_themeEnabled = false;
220
221 // VZ: this one shouldn't exist...
222 m_isBeingDeleted = false;
223 }
224
225 // common part of window creation process
226 bool wxWindowBase::CreateBase(wxWindowBase *parent,
227 wxWindowID id,
228 const wxPoint& WXUNUSED(pos),
229 const wxSize& WXUNUSED(size),
230 long style,
231 const wxValidator& wxVALIDATOR_PARAM(validator),
232 const wxString& name)
233 {
234 #if wxUSE_STATBOX
235 // wxGTK doesn't allow to create controls with static box as the parent so
236 // this will result in a crash when the program is ported to wxGTK so warn
237 // the user about it
238
239 // if you get this assert, the correct solution is to create the controls
240 // as siblings of the static box
241 wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
242 _T("wxStaticBox can't be used as a window parent!") );
243 #endif // wxUSE_STATBOX
244
245 // ids are limited to 16 bits under MSW so if you care about portability,
246 // it's not a good idea to use ids out of this range (and negative ids are
247 // reserved for wxWidgets own usage)
248 wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
249 _T("invalid id value") );
250
251 // generate a new id if the user doesn't care about it
252 m_windowId = id == wxID_ANY ? NewControlId() : id;
253
254 SetName(name);
255 SetWindowStyleFlag(style);
256 SetParent(parent);
257
258 #if wxUSE_VALIDATORS
259 SetValidator(validator);
260 #endif // wxUSE_VALIDATORS
261
262 // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
263 // have it too - like this it's possible to set it only in the top level
264 // dialog/frame and all children will inherit it by defult
265 if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
266 {
267 SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
268 }
269
270 return true;
271 }
272
273 // ----------------------------------------------------------------------------
274 // destruction
275 // ----------------------------------------------------------------------------
276
277 // common clean up
278 wxWindowBase::~wxWindowBase()
279 {
280 wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
281
282 // FIXME if these 2 cases result from programming errors in the user code
283 // we should probably assert here instead of silently fixing them
284
285 // Just in case the window has been Closed, but we're then deleting
286 // immediately: don't leave dangling pointers.
287 wxPendingDelete.DeleteObject(this);
288
289 // Just in case we've loaded a top-level window via LoadNativeDialog but
290 // we weren't a dialog class
291 wxTopLevelWindows.DeleteObject((wxWindow*)this);
292
293 wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
294
295 // reset the dangling pointer our parent window may keep to us
296 if ( m_parent )
297 {
298 if ( m_parent->GetDefaultItem() == this )
299 {
300 m_parent->SetDefaultItem(NULL);
301 }
302
303 m_parent->RemoveChild(this);
304 }
305
306 #if wxUSE_CARET
307 delete m_caret;
308 #endif // wxUSE_CARET
309
310 #if wxUSE_VALIDATORS
311 delete m_windowValidator;
312 #endif // wxUSE_VALIDATORS
313
314 #if wxUSE_CONSTRAINTS
315 // Have to delete constraints/sizer FIRST otherwise sizers may try to look
316 // at deleted windows as they delete themselves.
317 DeleteRelatedConstraints();
318
319 if ( m_constraints )
320 {
321 // This removes any dangling pointers to this window in other windows'
322 // constraintsInvolvedIn lists.
323 UnsetConstraints(m_constraints);
324 delete m_constraints;
325 m_constraints = NULL;
326 }
327 #endif // wxUSE_CONSTRAINTS
328
329 if ( m_containingSizer )
330 m_containingSizer->Detach( (wxWindow*)this );
331
332 delete m_windowSizer;
333
334 #if wxUSE_DRAG_AND_DROP
335 delete m_dropTarget;
336 #endif // wxUSE_DRAG_AND_DROP
337
338 #if wxUSE_TOOLTIPS
339 delete m_tooltip;
340 #endif // wxUSE_TOOLTIPS
341
342 #if wxUSE_ACCESSIBILITY
343 delete m_accessible;
344 #endif
345 }
346
347 bool wxWindowBase::Destroy()
348 {
349 delete this;
350
351 return true;
352 }
353
354 bool wxWindowBase::Close(bool force)
355 {
356 wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
357 event.SetEventObject(this);
358 event.SetCanVeto(!force);
359
360 // return false if window wasn't closed because the application vetoed the
361 // close event
362 return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
363 }
364
365 bool wxWindowBase::DestroyChildren()
366 {
367 wxWindowList::compatibility_iterator node;
368 for ( ;; )
369 {
370 // we iterate until the list becomes empty
371 node = GetChildren().GetFirst();
372 if ( !node )
373 break;
374
375 wxWindow *child = node->GetData();
376
377 // note that we really want to call delete and not ->Destroy() here
378 // because we want to delete the child immediately, before we are
379 // deleted, and delayed deletion would result in problems as our (top
380 // level) child could outlive its parent
381 delete child;
382
383 wxASSERT_MSG( !GetChildren().Find(child),
384 wxT("child didn't remove itself using RemoveChild()") );
385 }
386
387 return true;
388 }
389
390 // ----------------------------------------------------------------------------
391 // size/position related methods
392 // ----------------------------------------------------------------------------
393
394 // centre the window with respect to its parent in either (or both) directions
395 void wxWindowBase::DoCentre(int dir)
396 {
397 wxCHECK_RET( !(dir & wxCENTRE_ON_SCREEN) && GetParent(),
398 _T("this method only implements centering child windows") );
399
400 SetSize(GetRect().CentreIn(GetParent()->GetClientSize(), dir));
401 }
402
403 // fits the window around the children
404 void wxWindowBase::Fit()
405 {
406 if ( !GetChildren().empty() )
407 {
408 SetClientSize(GetBestSize());
409 }
410 //else: do nothing if we have no children
411 }
412
413 // fits virtual size (ie. scrolled area etc.) around children
414 void wxWindowBase::FitInside()
415 {
416 if ( GetChildren().GetCount() > 0 )
417 {
418 SetVirtualSize( GetBestVirtualSize() );
419 }
420 }
421
422 // On Mac, scrollbars are explicitly children.
423 #ifdef __WXMAC__
424 static bool wxHasRealChildren(const wxWindowBase* win)
425 {
426 int realChildCount = 0;
427
428 for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
429 node;
430 node = node->GetNext() )
431 {
432 wxWindow *win = node->GetData();
433 if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
434 realChildCount ++;
435 }
436 return (realChildCount > 0);
437 }
438 #endif
439
440 void wxWindowBase::InvalidateBestSize()
441 {
442 m_bestSizeCache = wxDefaultSize;
443
444 // parent's best size calculation may depend on its children's
445 // as long as child window we are in is not top level window itself
446 // (because the TLW size is never resized automatically)
447 // so let's invalidate it as well to be safe:
448 if (m_parent && !IsTopLevel())
449 m_parent->InvalidateBestSize();
450 }
451
452 // return the size best suited for the current window
453 wxSize wxWindowBase::DoGetBestSize() const
454 {
455 wxSize best;
456
457 if ( m_windowSizer )
458 {
459 best = GetWindowSizeForVirtualSize(m_windowSizer->GetMinSize());
460 }
461 #if wxUSE_CONSTRAINTS
462 else if ( m_constraints )
463 {
464 wxConstCast(this, wxWindowBase)->SatisfyConstraints();
465
466 // our minimal acceptable size is such that all our windows fit inside
467 int maxX = 0,
468 maxY = 0;
469
470 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
471 node;
472 node = node->GetNext() )
473 {
474 wxLayoutConstraints *c = node->GetData()->GetConstraints();
475 if ( !c )
476 {
477 // it's not normal that we have an unconstrained child, but
478 // what can we do about it?
479 continue;
480 }
481
482 int x = c->right.GetValue(),
483 y = c->bottom.GetValue();
484
485 if ( x > maxX )
486 maxX = x;
487
488 if ( y > maxY )
489 maxY = y;
490
491 // TODO: we must calculate the overlaps somehow, otherwise we
492 // will never return a size bigger than the current one :-(
493 }
494
495 best = wxSize(maxX, maxY);
496 }
497 #endif // wxUSE_CONSTRAINTS
498 else if ( !GetChildren().empty()
499 #ifdef __WXMAC__
500 && wxHasRealChildren(this)
501 #endif
502 )
503 {
504 // our minimal acceptable size is such that all our visible child windows fit inside
505 int maxX = 0,
506 maxY = 0;
507
508 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
509 node;
510 node = node->GetNext() )
511 {
512 wxWindow *win = node->GetData();
513 if ( win->IsTopLevel() || ( ! win->IsShown() )
514 #if wxUSE_STATUSBAR
515 || wxDynamicCast(win, wxStatusBar)
516 #endif // wxUSE_STATUSBAR
517 )
518 {
519 // dialogs and frames lie in different top level windows -
520 // don't deal with them here; as for the status bars, they
521 // don't lie in the client area at all
522 continue;
523 }
524
525 int wx, wy, ww, wh;
526 win->GetPosition(&wx, &wy);
527
528 // if the window hadn't been positioned yet, assume that it is in
529 // the origin
530 if ( wx == wxDefaultCoord )
531 wx = 0;
532 if ( wy == wxDefaultCoord )
533 wy = 0;
534
535 win->GetSize(&ww, &wh);
536 if ( wx + ww > maxX )
537 maxX = wx + ww;
538 if ( wy + wh > maxY )
539 maxY = wy + wh;
540 }
541
542 // for compatibility with the old versions and because it really looks
543 // slightly more pretty like this, add a pad
544 maxX += 7;
545 maxY += 14;
546
547 best = wxSize(maxX, maxY);
548 }
549 else // ! has children
550 {
551 // for a generic window there is no natural best size so, if the
552 // minimal size is not set, use the current size but take care to
553 // remember it as minimal size for the next time because our best size
554 // should be constant: otherwise we could get into a situation when the
555 // window is initially at some size, then expanded to a larger size and
556 // then, when the containing window is shrunk back (because our initial
557 // best size had been used for computing the parent min size), we can't
558 // be shrunk back any more because our best size is now bigger
559 wxSize size = GetMinSize();
560 if ( !size.IsFullySpecified() )
561 {
562 size.SetDefaults(GetSize());
563 wxConstCast(this, wxWindowBase)->SetMinSize(size);
564 }
565
566 // return as-is, unadjusted by the client size difference.
567 return size;
568 }
569
570 // Add any difference between size and client size
571 wxSize diff = GetSize() - GetClientSize();
572 best.x += wxMax(0, diff.x);
573 best.y += wxMax(0, diff.y);
574
575 return best;
576 }
577
578
579 wxSize wxWindowBase::GetBestFittingSize() const
580 {
581 // merge the best size with the min size, giving priority to the min size
582 wxSize min = GetMinSize();
583 if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
584 {
585 wxSize best = GetBestSize();
586 if (min.x == wxDefaultCoord) min.x = best.x;
587 if (min.y == wxDefaultCoord) min.y = best.y;
588 }
589 return min;
590 }
591
592
593 void wxWindowBase::SetBestFittingSize(const wxSize& size)
594 {
595 // Set the min size to the size passed in. This will usually either be
596 // wxDefaultSize or the size passed to this window's ctor/Create function.
597 SetMinSize(size);
598
599 // Merge the size with the best size if needed
600 wxSize best = GetBestFittingSize();
601
602 // If the current size doesn't match then change it
603 if (GetSize() != best)
604 SetSize(best);
605 }
606
607
608 // by default the origin is not shifted
609 wxPoint wxWindowBase::GetClientAreaOrigin() const
610 {
611 return wxPoint(0,0);
612 }
613
614 // set the min/max size of the window
615 void wxWindowBase::DoSetSizeHints(int minW, int minH,
616 int maxW, int maxH,
617 int WXUNUSED(incW), int WXUNUSED(incH))
618 {
619 // setting min width greater than max width leads to infinite loops under
620 // X11 and generally doesn't make any sense, so don't allow it
621 wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
622 (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
623 _T("min width/height must be less than max width/height!") );
624
625 m_minWidth = minW;
626 m_maxWidth = maxW;
627 m_minHeight = minH;
628 m_maxHeight = maxH;
629 }
630
631 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
632 {
633 if ( m_windowVariant != variant )
634 {
635 m_windowVariant = variant;
636
637 DoSetWindowVariant(variant);
638 }
639 }
640
641 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
642 {
643 // adjust the font height to correspond to our new variant (notice that
644 // we're only called if something really changed)
645 wxFont font = GetFont();
646 int size = font.GetPointSize();
647 switch ( variant )
648 {
649 case wxWINDOW_VARIANT_NORMAL:
650 break;
651
652 case wxWINDOW_VARIANT_SMALL:
653 size *= 3;
654 size /= 4;
655 break;
656
657 case wxWINDOW_VARIANT_MINI:
658 size *= 2;
659 size /= 3;
660 break;
661
662 case wxWINDOW_VARIANT_LARGE:
663 size *= 5;
664 size /= 4;
665 break;
666
667 default:
668 wxFAIL_MSG(_T("unexpected window variant"));
669 break;
670 }
671
672 font.SetPointSize(size);
673 SetFont(font);
674 }
675
676 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
677 int maxW, int maxH )
678 {
679 m_minVirtualWidth = minW;
680 m_maxVirtualWidth = maxW;
681 m_minVirtualHeight = minH;
682 m_maxVirtualHeight = maxH;
683 }
684
685 void wxWindowBase::DoSetVirtualSize( int x, int y )
686 {
687 if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
688 x = m_minVirtualWidth;
689 if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
690 x = m_maxVirtualWidth;
691 if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
692 y = m_minVirtualHeight;
693 if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
694 y = m_maxVirtualHeight;
695
696 m_virtualSize = wxSize(x, y);
697 }
698
699 wxSize wxWindowBase::DoGetVirtualSize() const
700 {
701 // we should use the entire client area so if it is greater than our
702 // virtual size, expand it to fit (otherwise if the window is big enough we
703 // wouldn't be using parts of it)
704 wxSize size = GetClientSize();
705 if ( m_virtualSize.x > size.x )
706 size.x = m_virtualSize.x;
707
708 if ( m_virtualSize.y >= size.y )
709 size.y = m_virtualSize.y;
710
711 return size;
712 }
713
714 void wxWindowBase::DoGetScreenPosition(int *x, int *y) const
715 {
716 // screen position is the same as (0, 0) in client coords for non TLWs (and
717 // TLWs override this method)
718 if ( x )
719 *x = 0;
720 if ( y )
721 *y = 0;
722
723 ClientToScreen(x, y);
724 }
725
726 // ----------------------------------------------------------------------------
727 // show/hide/enable/disable the window
728 // ----------------------------------------------------------------------------
729
730 bool wxWindowBase::Show(bool show)
731 {
732 if ( show != m_isShown )
733 {
734 m_isShown = show;
735
736 return true;
737 }
738 else
739 {
740 return false;
741 }
742 }
743
744 bool wxWindowBase::Enable(bool enable)
745 {
746 if ( enable != m_isEnabled )
747 {
748 m_isEnabled = enable;
749
750 return true;
751 }
752 else
753 {
754 return false;
755 }
756 }
757 // ----------------------------------------------------------------------------
758 // RTTI
759 // ----------------------------------------------------------------------------
760
761 bool wxWindowBase::IsTopLevel() const
762 {
763 return false;
764 }
765
766 // ----------------------------------------------------------------------------
767 // reparenting the window
768 // ----------------------------------------------------------------------------
769
770 void wxWindowBase::AddChild(wxWindowBase *child)
771 {
772 wxCHECK_RET( child, wxT("can't add a NULL child") );
773
774 // this should never happen and it will lead to a crash later if it does
775 // because RemoveChild() will remove only one node from the children list
776 // and the other(s) one(s) will be left with dangling pointers in them
777 wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
778
779 GetChildren().Append((wxWindow*)child);
780 child->SetParent(this);
781 }
782
783 void wxWindowBase::RemoveChild(wxWindowBase *child)
784 {
785 wxCHECK_RET( child, wxT("can't remove a NULL child") );
786
787 GetChildren().DeleteObject((wxWindow *)child);
788 child->SetParent(NULL);
789 }
790
791 bool wxWindowBase::Reparent(wxWindowBase *newParent)
792 {
793 wxWindow *oldParent = GetParent();
794 if ( newParent == oldParent )
795 {
796 // nothing done
797 return false;
798 }
799
800 // unlink this window from the existing parent.
801 if ( oldParent )
802 {
803 oldParent->RemoveChild(this);
804 }
805 else
806 {
807 wxTopLevelWindows.DeleteObject((wxWindow *)this);
808 }
809
810 // add it to the new one
811 if ( newParent )
812 {
813 newParent->AddChild(this);
814 }
815 else
816 {
817 wxTopLevelWindows.Append((wxWindow *)this);
818 }
819
820 return true;
821 }
822
823 // ----------------------------------------------------------------------------
824 // event handler stuff
825 // ----------------------------------------------------------------------------
826
827 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
828 {
829 wxEvtHandler *handlerOld = GetEventHandler();
830
831 handler->SetNextHandler(handlerOld);
832
833 if ( handlerOld )
834 GetEventHandler()->SetPreviousHandler(handler);
835
836 SetEventHandler(handler);
837 }
838
839 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
840 {
841 wxEvtHandler *handlerA = GetEventHandler();
842 if ( handlerA )
843 {
844 wxEvtHandler *handlerB = handlerA->GetNextHandler();
845 handlerA->SetNextHandler((wxEvtHandler *)NULL);
846
847 if ( handlerB )
848 handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
849 SetEventHandler(handlerB);
850
851 if ( deleteHandler )
852 {
853 delete handlerA;
854 handlerA = (wxEvtHandler *)NULL;
855 }
856 }
857
858 return handlerA;
859 }
860
861 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
862 {
863 wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
864
865 wxEvtHandler *handlerPrev = NULL,
866 *handlerCur = GetEventHandler();
867 while ( handlerCur )
868 {
869 wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
870
871 if ( handlerCur == handler )
872 {
873 if ( handlerPrev )
874 {
875 handlerPrev->SetNextHandler(handlerNext);
876 }
877 else
878 {
879 SetEventHandler(handlerNext);
880 }
881
882 if ( handlerNext )
883 {
884 handlerNext->SetPreviousHandler ( handlerPrev );
885 }
886
887 handler->SetNextHandler(NULL);
888 handler->SetPreviousHandler(NULL);
889
890 return true;
891 }
892
893 handlerPrev = handlerCur;
894 handlerCur = handlerNext;
895 }
896
897 wxFAIL_MSG( _T("where has the event handler gone?") );
898
899 return false;
900 }
901
902 // ----------------------------------------------------------------------------
903 // colours, fonts &c
904 // ----------------------------------------------------------------------------
905
906 void wxWindowBase::InheritAttributes()
907 {
908 const wxWindowBase * const parent = GetParent();
909 if ( !parent )
910 return;
911
912 // we only inherit attributes which had been explicitly set for the parent
913 // which ensures that this only happens if the user really wants it and
914 // not by default which wouldn't make any sense in modern GUIs where the
915 // controls don't all use the same fonts (nor colours)
916 if ( parent->m_inheritFont && !m_hasFont )
917 SetFont(parent->GetFont());
918
919 // in addition, there is a possibility to explicitly forbid inheriting
920 // colours at each class level by overriding ShouldInheritColours()
921 if ( ShouldInheritColours() )
922 {
923 if ( parent->m_inheritFgCol && !m_hasFgCol )
924 SetForegroundColour(parent->GetForegroundColour());
925
926 // inheriting (solid) background colour is wrong as it totally breaks
927 // any kind of themed backgrounds
928 //
929 // instead, the controls should use the same background as their parent
930 // (ideally by not drawing it at all)
931 #if 0
932 if ( parent->m_inheritBgCol && !m_hasBgCol )
933 SetBackgroundColour(parent->GetBackgroundColour());
934 #endif // 0
935 }
936 }
937
938 /* static */ wxVisualAttributes
939 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
940 {
941 // it is important to return valid values for all attributes from here,
942 // GetXXX() below rely on this
943 wxVisualAttributes attrs;
944 attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
945 attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
946
947 // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
948 // the usual background colour than wxSYS_COLOUR_BTNFACE.
949 // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
950 // colour on other platforms.
951
952 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
953 attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
954 #else
955 attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
956 #endif
957 return attrs;
958 }
959
960 wxColour wxWindowBase::GetBackgroundColour() const
961 {
962 if ( !m_backgroundColour.Ok() )
963 {
964 wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
965
966 // get our default background colour
967 wxColour colBg = GetDefaultAttributes().colBg;
968
969 // we must return some valid colour to avoid redoing this every time
970 // and also to avoid surprizing the applications written for older
971 // wxWidgets versions where GetBackgroundColour() always returned
972 // something -- so give them something even if it doesn't make sense
973 // for this window (e.g. it has a themed background)
974 if ( !colBg.Ok() )
975 colBg = GetClassDefaultAttributes().colBg;
976
977 return colBg;
978 }
979 else
980 return m_backgroundColour;
981 }
982
983 wxColour wxWindowBase::GetForegroundColour() const
984 {
985 // logic is the same as above
986 if ( !m_hasFgCol && !m_foregroundColour.Ok() )
987 {
988 wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
989
990 wxColour colFg = GetDefaultAttributes().colFg;
991
992 if ( !colFg.Ok() )
993 colFg = GetClassDefaultAttributes().colFg;
994
995 return colFg;
996 }
997 else
998 return m_foregroundColour;
999 }
1000
1001 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
1002 {
1003 if ( colour == m_backgroundColour )
1004 return false;
1005
1006 m_hasBgCol = colour.Ok();
1007 if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
1008 m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
1009
1010 m_inheritBgCol = m_hasBgCol;
1011 m_backgroundColour = colour;
1012 SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1013 return true;
1014 }
1015
1016 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1017 {
1018 if (colour == m_foregroundColour )
1019 return false;
1020
1021 m_hasFgCol = colour.Ok();
1022 m_inheritFgCol = m_hasFgCol;
1023 m_foregroundColour = colour;
1024 SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1025 return true;
1026 }
1027
1028 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1029 {
1030 // setting an invalid cursor is ok, it means that we don't have any special
1031 // cursor
1032 if ( m_cursor == cursor )
1033 {
1034 // no change
1035 return false;
1036 }
1037
1038 m_cursor = cursor;
1039
1040 return true;
1041 }
1042
1043 wxFont wxWindowBase::GetFont() const
1044 {
1045 // logic is the same as in GetBackgroundColour()
1046 if ( !m_font.Ok() )
1047 {
1048 wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1049
1050 wxFont font = GetDefaultAttributes().font;
1051 if ( !font.Ok() )
1052 font = GetClassDefaultAttributes().font;
1053
1054 return font;
1055 }
1056 else
1057 return m_font;
1058 }
1059
1060 bool wxWindowBase::SetFont(const wxFont& font)
1061 {
1062 if ( font == m_font )
1063 {
1064 // no change
1065 return false;
1066 }
1067
1068 m_font = font;
1069 m_hasFont = font.Ok();
1070 m_inheritFont = m_hasFont;
1071
1072 InvalidateBestSize();
1073
1074 return true;
1075 }
1076
1077 #if wxUSE_PALETTE
1078
1079 void wxWindowBase::SetPalette(const wxPalette& pal)
1080 {
1081 m_hasCustomPalette = true;
1082 m_palette = pal;
1083
1084 // VZ: can anyone explain me what do we do here?
1085 wxWindowDC d((wxWindow *) this);
1086 d.SetPalette(pal);
1087 }
1088
1089 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1090 {
1091 wxWindow *win = (wxWindow *)this;
1092 while ( win && !win->HasCustomPalette() )
1093 {
1094 win = win->GetParent();
1095 }
1096
1097 return win;
1098 }
1099
1100 #endif // wxUSE_PALETTE
1101
1102 #if wxUSE_CARET
1103 void wxWindowBase::SetCaret(wxCaret *caret)
1104 {
1105 if ( m_caret )
1106 {
1107 delete m_caret;
1108 }
1109
1110 m_caret = caret;
1111
1112 if ( m_caret )
1113 {
1114 wxASSERT_MSG( m_caret->GetWindow() == this,
1115 wxT("caret should be created associated to this window") );
1116 }
1117 }
1118 #endif // wxUSE_CARET
1119
1120 #if wxUSE_VALIDATORS
1121 // ----------------------------------------------------------------------------
1122 // validators
1123 // ----------------------------------------------------------------------------
1124
1125 void wxWindowBase::SetValidator(const wxValidator& validator)
1126 {
1127 if ( m_windowValidator )
1128 delete m_windowValidator;
1129
1130 m_windowValidator = (wxValidator *)validator.Clone();
1131
1132 if ( m_windowValidator )
1133 m_windowValidator->SetWindow(this);
1134 }
1135 #endif // wxUSE_VALIDATORS
1136
1137 // ----------------------------------------------------------------------------
1138 // update region stuff
1139 // ----------------------------------------------------------------------------
1140
1141 wxRect wxWindowBase::GetUpdateClientRect() const
1142 {
1143 wxRegion rgnUpdate = GetUpdateRegion();
1144 rgnUpdate.Intersect(GetClientRect());
1145 wxRect rectUpdate = rgnUpdate.GetBox();
1146 wxPoint ptOrigin = GetClientAreaOrigin();
1147 rectUpdate.x -= ptOrigin.x;
1148 rectUpdate.y -= ptOrigin.y;
1149
1150 return rectUpdate;
1151 }
1152
1153 bool wxWindowBase::IsExposed(int x, int y) const
1154 {
1155 return m_updateRegion.Contains(x, y) != wxOutRegion;
1156 }
1157
1158 bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
1159 {
1160 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1161 }
1162
1163 void wxWindowBase::ClearBackground()
1164 {
1165 // wxGTK uses its own version, no need to add never used code
1166 #ifndef __WXGTK__
1167 wxClientDC dc((wxWindow *)this);
1168 wxBrush brush(GetBackgroundColour(), wxSOLID);
1169 dc.SetBackground(brush);
1170 dc.Clear();
1171 #endif // __WXGTK__
1172 }
1173
1174 // ----------------------------------------------------------------------------
1175 // find child window by id or name
1176 // ----------------------------------------------------------------------------
1177
1178 wxWindow *wxWindowBase::FindWindow(long id) const
1179 {
1180 if ( id == m_windowId )
1181 return (wxWindow *)this;
1182
1183 wxWindowBase *res = (wxWindow *)NULL;
1184 wxWindowList::compatibility_iterator node;
1185 for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1186 {
1187 wxWindowBase *child = node->GetData();
1188 res = child->FindWindow( id );
1189 }
1190
1191 return (wxWindow *)res;
1192 }
1193
1194 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1195 {
1196 if ( name == m_windowName )
1197 return (wxWindow *)this;
1198
1199 wxWindowBase *res = (wxWindow *)NULL;
1200 wxWindowList::compatibility_iterator node;
1201 for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1202 {
1203 wxWindow *child = node->GetData();
1204 res = child->FindWindow(name);
1205 }
1206
1207 return (wxWindow *)res;
1208 }
1209
1210
1211 // find any window by id or name or label: If parent is non-NULL, look through
1212 // children for a label or title matching the specified string. If NULL, look
1213 // through all top-level windows.
1214 //
1215 // to avoid duplicating code we reuse the same helper function but with
1216 // different comparators
1217
1218 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1219 const wxString& label, long id);
1220
1221 static
1222 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1223 long WXUNUSED(id))
1224 {
1225 return win->GetLabel() == label;
1226 }
1227
1228 static
1229 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1230 long WXUNUSED(id))
1231 {
1232 return win->GetName() == label;
1233 }
1234
1235 static
1236 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1237 long id)
1238 {
1239 return win->GetId() == id;
1240 }
1241
1242 // recursive helper for the FindWindowByXXX() functions
1243 static
1244 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1245 const wxString& label,
1246 long id,
1247 wxFindWindowCmp cmp)
1248 {
1249 if ( parent )
1250 {
1251 // see if this is the one we're looking for
1252 if ( (*cmp)(parent, label, id) )
1253 return (wxWindow *)parent;
1254
1255 // It wasn't, so check all its children
1256 for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1257 node;
1258 node = node->GetNext() )
1259 {
1260 // recursively check each child
1261 wxWindow *win = (wxWindow *)node->GetData();
1262 wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1263 if (retwin)
1264 return retwin;
1265 }
1266 }
1267
1268 // Not found
1269 return NULL;
1270 }
1271
1272 // helper for FindWindowByXXX()
1273 static
1274 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1275 const wxString& label,
1276 long id,
1277 wxFindWindowCmp cmp)
1278 {
1279 if ( parent )
1280 {
1281 // just check parent and all its children
1282 return wxFindWindowRecursively(parent, label, id, cmp);
1283 }
1284
1285 // start at very top of wx's windows
1286 for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1287 node;
1288 node = node->GetNext() )
1289 {
1290 // recursively check each window & its children
1291 wxWindow *win = node->GetData();
1292 wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1293 if (retwin)
1294 return retwin;
1295 }
1296
1297 return NULL;
1298 }
1299
1300 /* static */
1301 wxWindow *
1302 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1303 {
1304 return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1305 }
1306
1307 /* static */
1308 wxWindow *
1309 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1310 {
1311 wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1312
1313 if ( !win )
1314 {
1315 // fall back to the label
1316 win = FindWindowByLabel(title, parent);
1317 }
1318
1319 return win;
1320 }
1321
1322 /* static */
1323 wxWindow *
1324 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1325 {
1326 return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1327 }
1328
1329 // ----------------------------------------------------------------------------
1330 // dialog oriented functions
1331 // ----------------------------------------------------------------------------
1332
1333 void wxWindowBase::MakeModal(bool modal)
1334 {
1335 // Disable all other windows
1336 if ( IsTopLevel() )
1337 {
1338 wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1339 while (node)
1340 {
1341 wxWindow *win = node->GetData();
1342 if (win != this)
1343 win->Enable(!modal);
1344
1345 node = node->GetNext();
1346 }
1347 }
1348 }
1349
1350 bool wxWindowBase::Validate()
1351 {
1352 #if wxUSE_VALIDATORS
1353 bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1354
1355 wxWindowList::compatibility_iterator node;
1356 for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1357 {
1358 wxWindowBase *child = node->GetData();
1359 wxValidator *validator = child->GetValidator();
1360 if ( validator && !validator->Validate((wxWindow *)this) )
1361 {
1362 return false;
1363 }
1364
1365 if ( recurse && !child->Validate() )
1366 {
1367 return false;
1368 }
1369 }
1370 #endif // wxUSE_VALIDATORS
1371
1372 return true;
1373 }
1374
1375 bool wxWindowBase::TransferDataToWindow()
1376 {
1377 #if wxUSE_VALIDATORS
1378 bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1379
1380 wxWindowList::compatibility_iterator node;
1381 for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1382 {
1383 wxWindowBase *child = node->GetData();
1384 wxValidator *validator = child->GetValidator();
1385 if ( validator && !validator->TransferToWindow() )
1386 {
1387 wxLogWarning(_("Could not transfer data to window"));
1388 #if wxUSE_LOG
1389 wxLog::FlushActive();
1390 #endif // wxUSE_LOG
1391
1392 return false;
1393 }
1394
1395 if ( recurse )
1396 {
1397 if ( !child->TransferDataToWindow() )
1398 {
1399 // warning already given
1400 return false;
1401 }
1402 }
1403 }
1404 #endif // wxUSE_VALIDATORS
1405
1406 return true;
1407 }
1408
1409 bool wxWindowBase::TransferDataFromWindow()
1410 {
1411 #if wxUSE_VALIDATORS
1412 bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1413
1414 wxWindowList::compatibility_iterator node;
1415 for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1416 {
1417 wxWindow *child = node->GetData();
1418 wxValidator *validator = child->GetValidator();
1419 if ( validator && !validator->TransferFromWindow() )
1420 {
1421 // nop warning here because the application is supposed to give
1422 // one itself - we don't know here what might have gone wrongly
1423
1424 return false;
1425 }
1426
1427 if ( recurse )
1428 {
1429 if ( !child->TransferDataFromWindow() )
1430 {
1431 // warning already given
1432 return false;
1433 }
1434 }
1435 }
1436 #endif // wxUSE_VALIDATORS
1437
1438 return true;
1439 }
1440
1441 void wxWindowBase::InitDialog()
1442 {
1443 wxInitDialogEvent event(GetId());
1444 event.SetEventObject( this );
1445 GetEventHandler()->ProcessEvent(event);
1446 }
1447
1448 // ----------------------------------------------------------------------------
1449 // context-sensitive help support
1450 // ----------------------------------------------------------------------------
1451
1452 #if wxUSE_HELP
1453
1454 // associate this help text with this window
1455 void wxWindowBase::SetHelpText(const wxString& text)
1456 {
1457 wxHelpProvider *helpProvider = wxHelpProvider::Get();
1458 if ( helpProvider )
1459 {
1460 helpProvider->AddHelp(this, text);
1461 }
1462 }
1463
1464 // associate this help text with all windows with the same id as this
1465 // one
1466 void wxWindowBase::SetHelpTextForId(const wxString& text)
1467 {
1468 wxHelpProvider *helpProvider = wxHelpProvider::Get();
1469 if ( helpProvider )
1470 {
1471 helpProvider->AddHelp(GetId(), text);
1472 }
1473 }
1474
1475 // get the help string associated with this window (may be empty)
1476 wxString wxWindowBase::GetHelpText() const
1477 {
1478 wxString text;
1479 wxHelpProvider *helpProvider = wxHelpProvider::Get();
1480 if ( helpProvider )
1481 {
1482 text = helpProvider->GetHelp(this);
1483 }
1484
1485 return text;
1486 }
1487
1488 // show help for this window
1489 void wxWindowBase::OnHelp(wxHelpEvent& event)
1490 {
1491 wxHelpProvider *helpProvider = wxHelpProvider::Get();
1492 if ( helpProvider )
1493 {
1494 if ( helpProvider->ShowHelp(this) )
1495 {
1496 // skip the event.Skip() below
1497 return;
1498 }
1499 }
1500
1501 event.Skip();
1502 }
1503
1504 #endif // wxUSE_HELP
1505
1506 // ----------------------------------------------------------------------------
1507 // tooltipsroot.Replace("\\", "/");
1508 // ----------------------------------------------------------------------------
1509
1510 #if wxUSE_TOOLTIPS
1511
1512 void wxWindowBase::SetToolTip( const wxString &tip )
1513 {
1514 // don't create the new tooltip if we already have one
1515 if ( m_tooltip )
1516 {
1517 m_tooltip->SetTip( tip );
1518 }
1519 else
1520 {
1521 SetToolTip( new wxToolTip( tip ) );
1522 }
1523
1524 // setting empty tooltip text does not remove the tooltip any more - use
1525 // SetToolTip((wxToolTip *)NULL) for this
1526 }
1527
1528 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1529 {
1530 if ( m_tooltip )
1531 delete m_tooltip;
1532
1533 m_tooltip = tooltip;
1534 }
1535
1536 #endif // wxUSE_TOOLTIPS
1537
1538 // ----------------------------------------------------------------------------
1539 // constraints and sizers
1540 // ----------------------------------------------------------------------------
1541
1542 #if wxUSE_CONSTRAINTS
1543
1544 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1545 {
1546 if ( m_constraints )
1547 {
1548 UnsetConstraints(m_constraints);
1549 delete m_constraints;
1550 }
1551 m_constraints = constraints;
1552 if ( m_constraints )
1553 {
1554 // Make sure other windows know they're part of a 'meaningful relationship'
1555 if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1556 m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1557 if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1558 m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1559 if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1560 m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1561 if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1562 m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1563 if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1564 m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1565 if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1566 m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1567 if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1568 m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1569 if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1570 m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1571 }
1572 }
1573
1574 // This removes any dangling pointers to this window in other windows'
1575 // constraintsInvolvedIn lists.
1576 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1577 {
1578 if ( c )
1579 {
1580 if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1581 c->left.GetOtherWindow()->RemoveConstraintReference(this);
1582 if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1583 c->top.GetOtherWindow()->RemoveConstraintReference(this);
1584 if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1585 c->right.GetOtherWindow()->RemoveConstraintReference(this);
1586 if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1587 c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1588 if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1589 c->width.GetOtherWindow()->RemoveConstraintReference(this);
1590 if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1591 c->height.GetOtherWindow()->RemoveConstraintReference(this);
1592 if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1593 c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1594 if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1595 c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1596 }
1597 }
1598
1599 // Back-pointer to other windows we're involved with, so if we delete this
1600 // window, we must delete any constraints we're involved with.
1601 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1602 {
1603 if ( !m_constraintsInvolvedIn )
1604 m_constraintsInvolvedIn = new wxWindowList;
1605 if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1606 m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1607 }
1608
1609 // REMOVE back-pointer to other windows we're involved with.
1610 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1611 {
1612 if ( m_constraintsInvolvedIn )
1613 m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1614 }
1615
1616 // Reset any constraints that mention this window
1617 void wxWindowBase::DeleteRelatedConstraints()
1618 {
1619 if ( m_constraintsInvolvedIn )
1620 {
1621 wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1622 while (node)
1623 {
1624 wxWindow *win = node->GetData();
1625 wxLayoutConstraints *constr = win->GetConstraints();
1626
1627 // Reset any constraints involving this window
1628 if ( constr )
1629 {
1630 constr->left.ResetIfWin(this);
1631 constr->top.ResetIfWin(this);
1632 constr->right.ResetIfWin(this);
1633 constr->bottom.ResetIfWin(this);
1634 constr->width.ResetIfWin(this);
1635 constr->height.ResetIfWin(this);
1636 constr->centreX.ResetIfWin(this);
1637 constr->centreY.ResetIfWin(this);
1638 }
1639
1640 wxWindowList::compatibility_iterator next = node->GetNext();
1641 m_constraintsInvolvedIn->Erase(node);
1642 node = next;
1643 }
1644
1645 delete m_constraintsInvolvedIn;
1646 m_constraintsInvolvedIn = (wxWindowList *) NULL;
1647 }
1648 }
1649
1650 #endif // wxUSE_CONSTRAINTS
1651
1652 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1653 {
1654 if ( sizer == m_windowSizer)
1655 return;
1656
1657 if ( deleteOld )
1658 delete m_windowSizer;
1659
1660 m_windowSizer = sizer;
1661
1662 SetAutoLayout( sizer != NULL );
1663 }
1664
1665 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1666 {
1667 SetSizer( sizer, deleteOld );
1668 sizer->SetSizeHints( (wxWindow*) this );
1669 }
1670
1671
1672 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1673 {
1674 // adding a window to a sizer twice is going to result in fatal and
1675 // hard to debug problems later because when deleting the second
1676 // associated wxSizerItem we're going to dereference a dangling
1677 // pointer; so try to detect this as early as possible
1678 wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1679 _T("Adding a window to the same sizer twice?") );
1680
1681 m_containingSizer = sizer;
1682 }
1683
1684 #if wxUSE_CONSTRAINTS
1685
1686 void wxWindowBase::SatisfyConstraints()
1687 {
1688 wxLayoutConstraints *constr = GetConstraints();
1689 bool wasOk = constr && constr->AreSatisfied();
1690
1691 ResetConstraints(); // Mark all constraints as unevaluated
1692
1693 int noChanges = 1;
1694
1695 // if we're a top level panel (i.e. our parent is frame/dialog), our
1696 // own constraints will never be satisfied any more unless we do it
1697 // here
1698 if ( wasOk )
1699 {
1700 while ( noChanges > 0 )
1701 {
1702 LayoutPhase1(&noChanges);
1703 }
1704 }
1705
1706 LayoutPhase2(&noChanges);
1707 }
1708
1709 #endif // wxUSE_CONSTRAINTS
1710
1711 bool wxWindowBase::Layout()
1712 {
1713 // If there is a sizer, use it instead of the constraints
1714 if ( GetSizer() )
1715 {
1716 int w = 0, h = 0;
1717 GetVirtualSize(&w, &h);
1718 GetSizer()->SetDimension( 0, 0, w, h );
1719 }
1720 #if wxUSE_CONSTRAINTS
1721 else
1722 {
1723 SatisfyConstraints(); // Find the right constraints values
1724 SetConstraintSizes(); // Recursively set the real window sizes
1725 }
1726 #endif
1727
1728 return true;
1729 }
1730
1731 #if wxUSE_CONSTRAINTS
1732
1733 // first phase of the constraints evaluation: set our own constraints
1734 bool wxWindowBase::LayoutPhase1(int *noChanges)
1735 {
1736 wxLayoutConstraints *constr = GetConstraints();
1737
1738 return !constr || constr->SatisfyConstraints(this, noChanges);
1739 }
1740
1741 // second phase: set the constraints for our children
1742 bool wxWindowBase::LayoutPhase2(int *noChanges)
1743 {
1744 *noChanges = 0;
1745
1746 // Layout children
1747 DoPhase(1);
1748
1749 // Layout grand children
1750 DoPhase(2);
1751
1752 return true;
1753 }
1754
1755 // Do a phase of evaluating child constraints
1756 bool wxWindowBase::DoPhase(int phase)
1757 {
1758 // the list containing the children for which the constraints are already
1759 // set correctly
1760 wxWindowList succeeded;
1761
1762 // the max number of iterations we loop before concluding that we can't set
1763 // the constraints
1764 static const int maxIterations = 500;
1765
1766 for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1767 {
1768 int noChanges = 0;
1769
1770 // loop over all children setting their constraints
1771 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1772 node;
1773 node = node->GetNext() )
1774 {
1775 wxWindow *child = node->GetData();
1776 if ( child->IsTopLevel() )
1777 {
1778 // top level children are not inside our client area
1779 continue;
1780 }
1781
1782 if ( !child->GetConstraints() || succeeded.Find(child) )
1783 {
1784 // this one is either already ok or nothing we can do about it
1785 continue;
1786 }
1787
1788 int tempNoChanges = 0;
1789 bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1790 : child->LayoutPhase2(&tempNoChanges);
1791 noChanges += tempNoChanges;
1792
1793 if ( success )
1794 {
1795 succeeded.Append(child);
1796 }
1797 }
1798
1799 if ( !noChanges )
1800 {
1801 // constraints are set
1802 break;
1803 }
1804 }
1805
1806 return true;
1807 }
1808
1809 void wxWindowBase::ResetConstraints()
1810 {
1811 wxLayoutConstraints *constr = GetConstraints();
1812 if ( constr )
1813 {
1814 constr->left.SetDone(false);
1815 constr->top.SetDone(false);
1816 constr->right.SetDone(false);
1817 constr->bottom.SetDone(false);
1818 constr->width.SetDone(false);
1819 constr->height.SetDone(false);
1820 constr->centreX.SetDone(false);
1821 constr->centreY.SetDone(false);
1822 }
1823
1824 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1825 while (node)
1826 {
1827 wxWindow *win = node->GetData();
1828 if ( !win->IsTopLevel() )
1829 win->ResetConstraints();
1830 node = node->GetNext();
1831 }
1832 }
1833
1834 // Need to distinguish between setting the 'fake' size for windows and sizers,
1835 // and setting the real values.
1836 void wxWindowBase::SetConstraintSizes(bool recurse)
1837 {
1838 wxLayoutConstraints *constr = GetConstraints();
1839 if ( constr && constr->AreSatisfied() )
1840 {
1841 int x = constr->left.GetValue();
1842 int y = constr->top.GetValue();
1843 int w = constr->width.GetValue();
1844 int h = constr->height.GetValue();
1845
1846 if ( (constr->width.GetRelationship() != wxAsIs ) ||
1847 (constr->height.GetRelationship() != wxAsIs) )
1848 {
1849 SetSize(x, y, w, h);
1850 }
1851 else
1852 {
1853 // If we don't want to resize this window, just move it...
1854 Move(x, y);
1855 }
1856 }
1857 else if ( constr )
1858 {
1859 wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1860 GetClassInfo()->GetClassName(),
1861 GetName().c_str());
1862 }
1863
1864 if ( recurse )
1865 {
1866 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1867 while (node)
1868 {
1869 wxWindow *win = node->GetData();
1870 if ( !win->IsTopLevel() && win->GetConstraints() )
1871 win->SetConstraintSizes();
1872 node = node->GetNext();
1873 }
1874 }
1875 }
1876
1877 // Only set the size/position of the constraint (if any)
1878 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1879 {
1880 wxLayoutConstraints *constr = GetConstraints();
1881 if ( constr )
1882 {
1883 if ( x != wxDefaultCoord )
1884 {
1885 constr->left.SetValue(x);
1886 constr->left.SetDone(true);
1887 }
1888 if ( y != wxDefaultCoord )
1889 {
1890 constr->top.SetValue(y);
1891 constr->top.SetDone(true);
1892 }
1893 if ( w != wxDefaultCoord )
1894 {
1895 constr->width.SetValue(w);
1896 constr->width.SetDone(true);
1897 }
1898 if ( h != wxDefaultCoord )
1899 {
1900 constr->height.SetValue(h);
1901 constr->height.SetDone(true);
1902 }
1903 }
1904 }
1905
1906 void wxWindowBase::MoveConstraint(int x, int y)
1907 {
1908 wxLayoutConstraints *constr = GetConstraints();
1909 if ( constr )
1910 {
1911 if ( x != wxDefaultCoord )
1912 {
1913 constr->left.SetValue(x);
1914 constr->left.SetDone(true);
1915 }
1916 if ( y != wxDefaultCoord )
1917 {
1918 constr->top.SetValue(y);
1919 constr->top.SetDone(true);
1920 }
1921 }
1922 }
1923
1924 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
1925 {
1926 wxLayoutConstraints *constr = GetConstraints();
1927 if ( constr )
1928 {
1929 *w = constr->width.GetValue();
1930 *h = constr->height.GetValue();
1931 }
1932 else
1933 GetSize(w, h);
1934 }
1935
1936 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
1937 {
1938 wxLayoutConstraints *constr = GetConstraints();
1939 if ( constr )
1940 {
1941 *w = constr->width.GetValue();
1942 *h = constr->height.GetValue();
1943 }
1944 else
1945 GetClientSize(w, h);
1946 }
1947
1948 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
1949 {
1950 wxLayoutConstraints *constr = GetConstraints();
1951 if ( constr )
1952 {
1953 *x = constr->left.GetValue();
1954 *y = constr->top.GetValue();
1955 }
1956 else
1957 GetPosition(x, y);
1958 }
1959
1960 #endif // wxUSE_CONSTRAINTS
1961
1962 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
1963 {
1964 // don't do it for the dialogs/frames - they float independently of their
1965 // parent
1966 if ( !IsTopLevel() )
1967 {
1968 wxWindow *parent = GetParent();
1969 if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
1970 {
1971 wxPoint pt(parent->GetClientAreaOrigin());
1972 x += pt.x;
1973 y += pt.y;
1974 }
1975 }
1976 }
1977
1978 // ----------------------------------------------------------------------------
1979 // do Update UI processing for child controls
1980 // ----------------------------------------------------------------------------
1981
1982 void wxWindowBase::UpdateWindowUI(long flags)
1983 {
1984 wxUpdateUIEvent event(GetId());
1985 event.SetEventObject(this);
1986
1987 if ( GetEventHandler()->ProcessEvent(event) )
1988 {
1989 DoUpdateWindowUI(event);
1990 }
1991
1992 if (flags & wxUPDATE_UI_RECURSE)
1993 {
1994 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1995 while (node)
1996 {
1997 wxWindow* child = (wxWindow*) node->GetData();
1998 child->UpdateWindowUI(flags);
1999 node = node->GetNext();
2000 }
2001 }
2002 }
2003
2004 // do the window-specific processing after processing the update event
2005 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2006 {
2007 if ( event.GetSetEnabled() )
2008 Enable(event.GetEnabled());
2009
2010 if ( event.GetSetShown() )
2011 Show(event.GetShown());
2012 }
2013
2014 #if 0
2015 // call internal idle recursively
2016 // may be obsolete (wait until OnIdle scheme stabilises)
2017 void wxWindowBase::ProcessInternalIdle()
2018 {
2019 OnInternalIdle();
2020
2021 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2022 while (node)
2023 {
2024 wxWindow *child = node->GetData();
2025 child->ProcessInternalIdle();
2026 node = node->GetNext();
2027 }
2028 }
2029 #endif
2030
2031 // ----------------------------------------------------------------------------
2032 // dialog units translations
2033 // ----------------------------------------------------------------------------
2034
2035 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2036 {
2037 int charWidth = GetCharWidth();
2038 int charHeight = GetCharHeight();
2039 wxPoint pt2 = wxDefaultPosition;
2040 if (pt.x != wxDefaultCoord)
2041 pt2.x = (int) ((pt.x * 4) / charWidth);
2042 if (pt.y != wxDefaultCoord)
2043 pt2.y = (int) ((pt.y * 8) / charHeight);
2044
2045 return pt2;
2046 }
2047
2048 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2049 {
2050 int charWidth = GetCharWidth();
2051 int charHeight = GetCharHeight();
2052 wxPoint pt2 = wxDefaultPosition;
2053 if (pt.x != wxDefaultCoord)
2054 pt2.x = (int) ((pt.x * charWidth) / 4);
2055 if (pt.y != wxDefaultCoord)
2056 pt2.y = (int) ((pt.y * charHeight) / 8);
2057
2058 return pt2;
2059 }
2060
2061 // ----------------------------------------------------------------------------
2062 // event handlers
2063 // ----------------------------------------------------------------------------
2064
2065 // propagate the colour change event to the subwindows
2066 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2067 {
2068 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2069 while ( node )
2070 {
2071 // Only propagate to non-top-level windows
2072 wxWindow *win = node->GetData();
2073 if ( !win->IsTopLevel() )
2074 {
2075 wxSysColourChangedEvent event2;
2076 event.SetEventObject(win);
2077 win->GetEventHandler()->ProcessEvent(event2);
2078 }
2079
2080 node = node->GetNext();
2081 }
2082
2083 Refresh();
2084 }
2085
2086 // the default action is to populate dialog with data when it's created,
2087 // and nudge the UI into displaying itself correctly in case
2088 // we've turned the wxUpdateUIEvents frequency down low.
2089 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2090 {
2091 TransferDataToWindow();
2092
2093 // Update the UI at this point
2094 UpdateWindowUI(wxUPDATE_UI_RECURSE);
2095 }
2096
2097 // methods for drawing the sizers in a visible way
2098 #ifdef __WXDEBUG__
2099
2100 static void DrawSizers(wxWindowBase *win);
2101
2102 static void DrawBorder(wxWindowBase *win, const wxRect& rect, bool fill = false)
2103 {
2104 wxClientDC dc((wxWindow *)win);
2105 dc.SetPen(*wxRED_PEN);
2106 dc.SetBrush(fill ? wxBrush(*wxRED, wxCROSSDIAG_HATCH): *wxTRANSPARENT_BRUSH);
2107 dc.DrawRectangle(rect.Deflate(1, 1));
2108 }
2109
2110 static void DrawSizer(wxWindowBase *win, wxSizer *sizer)
2111 {
2112 const wxSizerItemList& items = sizer->GetChildren();
2113 for ( wxSizerItemList::const_iterator i = items.begin(),
2114 end = items.end();
2115 i != end;
2116 ++i )
2117 {
2118 wxSizerItem *item = *i;
2119 if ( item->IsSizer() )
2120 {
2121 DrawBorder(win, item->GetRect().Deflate(2));
2122 DrawSizer(win, item->GetSizer());
2123 }
2124 else if ( item->IsSpacer() )
2125 {
2126 DrawBorder(win, item->GetRect().Deflate(2), true);
2127 }
2128 else if ( item->IsWindow() )
2129 {
2130 DrawSizers(item->GetWindow());
2131 }
2132 }
2133 }
2134
2135 static void DrawSizers(wxWindowBase *win)
2136 {
2137 wxSizer *sizer = win->GetSizer();
2138 if ( sizer )
2139 {
2140 DrawBorder(win, win->GetClientSize());
2141 DrawSizer(win, sizer);
2142 }
2143 else // no sizer, still recurse into the children
2144 {
2145 const wxWindowList& children = win->GetChildren();
2146 for ( wxWindowList::const_iterator i = children.begin(),
2147 end = children.end();
2148 i != end;
2149 ++i )
2150 {
2151 DrawSizers(*i);
2152 }
2153 }
2154 }
2155
2156 #endif // __WXDEBUG__
2157
2158 // process special middle clicks
2159 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2160 {
2161 if ( event.ControlDown() && event.AltDown() )
2162 {
2163 #ifdef __WXDEBUG__
2164 // Ctrl-Alt-Shift-mclick makes the sizers visible in debug builds
2165 if ( event.ShiftDown() )
2166 {
2167 DrawSizers(this);
2168 return;
2169 }
2170 #endif // __WXDEBUG__
2171
2172 #if wxUSE_MSGDLG
2173 // don't translate these strings
2174 wxString port;
2175
2176 #ifdef __WXUNIVERSAL__
2177 port = _T("Univ/");
2178 #endif // __WXUNIVERSAL__
2179
2180 switch ( wxGetOsVersion() )
2181 {
2182 case wxMOTIF_X: port += _T("Motif"); break;
2183 case wxMAC:
2184 case wxMAC_DARWIN: port += _T("Mac"); break;
2185 case wxBEOS: port += _T("BeOS"); break;
2186 case wxGTK:
2187 case wxGTK_WIN32:
2188 case wxGTK_OS2:
2189 case wxGTK_BEOS: port += _T("GTK"); break;
2190 case wxWINDOWS:
2191 case wxPENWINDOWS:
2192 case wxWINDOWS_NT:
2193 case wxWIN32S:
2194 case wxWIN95:
2195 case wxWIN386: port += _T("MS Windows"); break;
2196 case wxMGL_UNIX:
2197 case wxMGL_X:
2198 case wxMGL_WIN32:
2199 case wxMGL_OS2: port += _T("MGL"); break;
2200 case wxWINDOWS_OS2:
2201 case wxOS2_PM: port += _T("OS/2"); break;
2202 case wxPALMOS: port += _T("Palm OS"); break;
2203 case wxWINDOWS_CE: port += _T("Windows CE (generic)"); break;
2204 case wxWINDOWS_POCKETPC: port += _T("Windows CE PocketPC"); break;
2205 case wxWINDOWS_SMARTPHONE: port += _T("Windows CE Smartphone"); break;
2206 default: port += _T("unknown"); break;
2207 }
2208
2209 wxMessageBox(wxString::Format(
2210 _T(
2211 " wxWidgets Library (%s port)\nVersion %d.%d.%d%s%s, compiled at %s %s%s\n Copyright (c) 1995-2006 wxWidgets team"
2212 ),
2213 port.c_str(),
2214 wxMAJOR_VERSION,
2215 wxMINOR_VERSION,
2216 wxRELEASE_NUMBER,
2217 #if wxUSE_UNICODE
2218 L" (Unicode)",
2219 #else
2220 "",
2221 #endif
2222 #ifdef __WXDEBUG__
2223 _T(" Debug build"),
2224 #else
2225 wxEmptyString,
2226 #endif
2227 __TDATE__,
2228 __TTIME__,
2229 #ifdef __WXGTK__
2230 wxString::Format(_T("\nagainst GTK+ %d.%d.%d. Runtime GTK+ version: %d.%d.%d"), GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION, gtk_major_version, gtk_minor_version, gtk_micro_version).c_str()
2231 #else
2232 ""
2233 #endif
2234 ),
2235 _T("wxWidgets information"),
2236 wxICON_INFORMATION | wxOK,
2237 (wxWindow *)this);
2238 }
2239 else
2240 #endif // wxUSE_MSGDLG
2241 {
2242 event.Skip();
2243 }
2244 }
2245
2246 // ----------------------------------------------------------------------------
2247 // accessibility
2248 // ----------------------------------------------------------------------------
2249
2250 #if wxUSE_ACCESSIBILITY
2251 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2252 {
2253 if (m_accessible && (accessible != m_accessible))
2254 delete m_accessible;
2255 m_accessible = accessible;
2256 if (m_accessible)
2257 m_accessible->SetWindow((wxWindow*) this);
2258 }
2259
2260 // Returns the accessible object, creating if necessary.
2261 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2262 {
2263 if (!m_accessible)
2264 m_accessible = CreateAccessible();
2265 return m_accessible;
2266 }
2267
2268 // Override to create a specific accessible object.
2269 wxAccessible* wxWindowBase::CreateAccessible()
2270 {
2271 return new wxWindowAccessible((wxWindow*) this);
2272 }
2273
2274 #endif
2275
2276 // ----------------------------------------------------------------------------
2277 // list classes implementation
2278 // ----------------------------------------------------------------------------
2279
2280 #if wxUSE_STL
2281
2282 #include "wx/listimpl.cpp"
2283 WX_DEFINE_LIST(wxWindowList)
2284
2285 #else
2286
2287 void wxWindowListNode::DeleteData()
2288 {
2289 delete (wxWindow *)GetData();
2290 }
2291
2292 #endif
2293
2294 // ----------------------------------------------------------------------------
2295 // borders
2296 // ----------------------------------------------------------------------------
2297
2298 wxBorder wxWindowBase::GetBorder(long flags) const
2299 {
2300 wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2301 if ( border == wxBORDER_DEFAULT )
2302 {
2303 border = GetDefaultBorder();
2304 }
2305
2306 return border;
2307 }
2308
2309 wxBorder wxWindowBase::GetDefaultBorder() const
2310 {
2311 return wxBORDER_NONE;
2312 }
2313
2314 // ----------------------------------------------------------------------------
2315 // hit testing
2316 // ----------------------------------------------------------------------------
2317
2318 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2319 {
2320 // here we just check if the point is inside the window or not
2321
2322 // check the top and left border first
2323 bool outside = x < 0 || y < 0;
2324 if ( !outside )
2325 {
2326 // check the right and bottom borders too
2327 wxSize size = GetSize();
2328 outside = x >= size.x || y >= size.y;
2329 }
2330
2331 return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2332 }
2333
2334 // ----------------------------------------------------------------------------
2335 // mouse capture
2336 // ----------------------------------------------------------------------------
2337
2338 struct WXDLLEXPORT wxWindowNext
2339 {
2340 wxWindow *win;
2341 wxWindowNext *next;
2342 } *wxWindowBase::ms_winCaptureNext = NULL;
2343
2344 void wxWindowBase::CaptureMouse()
2345 {
2346 wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), this);
2347
2348 wxWindow *winOld = GetCapture();
2349 if ( winOld )
2350 {
2351 ((wxWindowBase*) winOld)->DoReleaseMouse();
2352
2353 // save it on stack
2354 wxWindowNext *item = new wxWindowNext;
2355 item->win = winOld;
2356 item->next = ms_winCaptureNext;
2357 ms_winCaptureNext = item;
2358 }
2359 //else: no mouse capture to save
2360
2361 DoCaptureMouse();
2362 }
2363
2364 void wxWindowBase::ReleaseMouse()
2365 {
2366 wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), this);
2367
2368 wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2369
2370 DoReleaseMouse();
2371
2372 if ( ms_winCaptureNext )
2373 {
2374 ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2375
2376 wxWindowNext *item = ms_winCaptureNext;
2377 ms_winCaptureNext = item->next;
2378 delete item;
2379 }
2380 //else: stack is empty, no previous capture
2381
2382 wxLogTrace(_T("mousecapture"),
2383 (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2384 GetCapture());
2385 }
2386
2387 #if wxUSE_HOTKEY
2388
2389 bool
2390 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2391 int WXUNUSED(modifiers),
2392 int WXUNUSED(keycode))
2393 {
2394 // not implemented
2395 return false;
2396 }
2397
2398 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2399 {
2400 // not implemented
2401 return false;
2402 }
2403
2404 #endif // wxUSE_HOTKEY
2405
2406 void wxWindowBase::SendDestroyEvent()
2407 {
2408 wxWindowDestroyEvent event;
2409 event.SetEventObject(this);
2410 event.SetId(GetId());
2411 GetEventHandler()->ProcessEvent(event);
2412 }
2413
2414 // ----------------------------------------------------------------------------
2415 // event processing
2416 // ----------------------------------------------------------------------------
2417
2418 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2419 {
2420 #if wxUSE_VALIDATORS
2421 // Can only use the validator of the window which
2422 // is receiving the event
2423 if ( event.GetEventObject() == this )
2424 {
2425 wxValidator *validator = GetValidator();
2426 if ( validator && validator->ProcessEvent(event) )
2427 {
2428 return true;
2429 }
2430 }
2431 #endif // wxUSE_VALIDATORS
2432
2433 return false;
2434 }
2435
2436 bool wxWindowBase::TryParent(wxEvent& event)
2437 {
2438 // carry on up the parent-child hierarchy if the propagation count hasn't
2439 // reached zero yet
2440 if ( event.ShouldPropagate() )
2441 {
2442 // honour the requests to stop propagation at this window: this is
2443 // used by the dialogs, for example, to prevent processing the events
2444 // from the dialog controls in the parent frame which rarely, if ever,
2445 // makes sense
2446 if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2447 {
2448 wxWindow *parent = GetParent();
2449 if ( parent && !parent->IsBeingDeleted() )
2450 {
2451 wxPropagateOnce propagateOnce(event);
2452
2453 return parent->GetEventHandler()->ProcessEvent(event);
2454 }
2455 }
2456 }
2457
2458 return wxEvtHandler::TryParent(event);
2459 }
2460
2461 // ----------------------------------------------------------------------------
2462 // keyboard navigation
2463 // ----------------------------------------------------------------------------
2464
2465 // Navigates in the specified direction.
2466 bool wxWindowBase::Navigate(int flags)
2467 {
2468 wxNavigationKeyEvent eventNav;
2469 eventNav.SetFlags(flags);
2470 eventNav.SetEventObject(this);
2471 if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2472 {
2473 return true;
2474 }
2475 return false;
2476 }
2477
2478 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2479 {
2480 // check that we're not a top level window
2481 wxCHECK_RET( GetParent(),
2482 _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2483
2484 // detect the special case when we have nothing to do anyhow and when the
2485 // code below wouldn't work
2486 if ( win == this )
2487 return;
2488
2489 // find the target window in the siblings list
2490 wxWindowList& siblings = GetParent()->GetChildren();
2491 wxWindowList::compatibility_iterator i = siblings.Find(win);
2492 wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2493
2494 // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2495 // can't just move the node around
2496 wxWindow *self = (wxWindow *)this;
2497 siblings.DeleteObject(self);
2498 if ( move == MoveAfter )
2499 {
2500 i = i->GetNext();
2501 }
2502
2503 if ( i )
2504 {
2505 siblings.Insert(i, self);
2506 }
2507 else // MoveAfter and win was the last sibling
2508 {
2509 siblings.Append(self);
2510 }
2511 }
2512
2513 // ----------------------------------------------------------------------------
2514 // focus handling
2515 // ----------------------------------------------------------------------------
2516
2517 /*static*/ wxWindow* wxWindowBase::FindFocus()
2518 {
2519 wxWindowBase *win = DoFindFocus();
2520 return win ? win->GetMainWindowOfCompositeControl() : NULL;
2521 }
2522
2523 // ----------------------------------------------------------------------------
2524 // global functions
2525 // ----------------------------------------------------------------------------
2526
2527 wxWindow* wxGetTopLevelParent(wxWindow *win)
2528 {
2529 while ( win && !win->IsTopLevel() )
2530 win = win->GetParent();
2531
2532 return win;
2533 }
2534
2535 #if wxUSE_ACCESSIBILITY
2536 // ----------------------------------------------------------------------------
2537 // accessible object for windows
2538 // ----------------------------------------------------------------------------
2539
2540 // Can return either a child object, or an integer
2541 // representing the child element, starting from 1.
2542 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2543 {
2544 wxASSERT( GetWindow() != NULL );
2545 if (!GetWindow())
2546 return wxACC_FAIL;
2547
2548 return wxACC_NOT_IMPLEMENTED;
2549 }
2550
2551 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2552 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2553 {
2554 wxASSERT( GetWindow() != NULL );
2555 if (!GetWindow())
2556 return wxACC_FAIL;
2557
2558 wxWindow* win = NULL;
2559 if (elementId == 0)
2560 {
2561 win = GetWindow();
2562 }
2563 else
2564 {
2565 if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2566 {
2567 win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2568 }
2569 else
2570 return wxACC_FAIL;
2571 }
2572 if (win)
2573 {
2574 rect = win->GetRect();
2575 if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2576 rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2577 return wxACC_OK;
2578 }
2579
2580 return wxACC_NOT_IMPLEMENTED;
2581 }
2582
2583 // Navigates from fromId to toId/toObject.
2584 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2585 int* WXUNUSED(toId), wxAccessible** toObject)
2586 {
2587 wxASSERT( GetWindow() != NULL );
2588 if (!GetWindow())
2589 return wxACC_FAIL;
2590
2591 switch (navDir)
2592 {
2593 case wxNAVDIR_FIRSTCHILD:
2594 {
2595 if (GetWindow()->GetChildren().GetCount() == 0)
2596 return wxACC_FALSE;
2597 wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2598 *toObject = childWindow->GetOrCreateAccessible();
2599
2600 return wxACC_OK;
2601 }
2602 case wxNAVDIR_LASTCHILD:
2603 {
2604 if (GetWindow()->GetChildren().GetCount() == 0)
2605 return wxACC_FALSE;
2606 wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2607 *toObject = childWindow->GetOrCreateAccessible();
2608
2609 return wxACC_OK;
2610 }
2611 case wxNAVDIR_RIGHT:
2612 case wxNAVDIR_DOWN:
2613 case wxNAVDIR_NEXT:
2614 {
2615 wxWindowList::compatibility_iterator node =
2616 wxWindowList::compatibility_iterator();
2617 if (fromId == 0)
2618 {
2619 // Can't navigate to sibling of this window
2620 // if we're a top-level window.
2621 if (!GetWindow()->GetParent())
2622 return wxACC_NOT_IMPLEMENTED;
2623
2624 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2625 }
2626 else
2627 {
2628 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2629 node = GetWindow()->GetChildren().Item(fromId-1);
2630 }
2631
2632 if (node && node->GetNext())
2633 {
2634 wxWindow* nextWindow = node->GetNext()->GetData();
2635 *toObject = nextWindow->GetOrCreateAccessible();
2636 return wxACC_OK;
2637 }
2638 else
2639 return wxACC_FALSE;
2640 }
2641 case wxNAVDIR_LEFT:
2642 case wxNAVDIR_UP:
2643 case wxNAVDIR_PREVIOUS:
2644 {
2645 wxWindowList::compatibility_iterator node =
2646 wxWindowList::compatibility_iterator();
2647 if (fromId == 0)
2648 {
2649 // Can't navigate to sibling of this window
2650 // if we're a top-level window.
2651 if (!GetWindow()->GetParent())
2652 return wxACC_NOT_IMPLEMENTED;
2653
2654 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2655 }
2656 else
2657 {
2658 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2659 node = GetWindow()->GetChildren().Item(fromId-1);
2660 }
2661
2662 if (node && node->GetPrevious())
2663 {
2664 wxWindow* previousWindow = node->GetPrevious()->GetData();
2665 *toObject = previousWindow->GetOrCreateAccessible();
2666 return wxACC_OK;
2667 }
2668 else
2669 return wxACC_FALSE;
2670 }
2671 }
2672
2673 return wxACC_NOT_IMPLEMENTED;
2674 }
2675
2676 // Gets the name of the specified object.
2677 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2678 {
2679 wxASSERT( GetWindow() != NULL );
2680 if (!GetWindow())
2681 return wxACC_FAIL;
2682
2683 wxString title;
2684
2685 // If a child, leave wxWidgets to call the function on the actual
2686 // child object.
2687 if (childId > 0)
2688 return wxACC_NOT_IMPLEMENTED;
2689
2690 // This will eventually be replaced by specialised
2691 // accessible classes, one for each kind of wxWidgets
2692 // control or window.
2693 #if wxUSE_BUTTON
2694 if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2695 title = ((wxButton*) GetWindow())->GetLabel();
2696 else
2697 #endif
2698 title = GetWindow()->GetName();
2699
2700 if (!title.empty())
2701 {
2702 *name = title;
2703 return wxACC_OK;
2704 }
2705 else
2706 return wxACC_NOT_IMPLEMENTED;
2707 }
2708
2709 // Gets the number of children.
2710 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2711 {
2712 wxASSERT( GetWindow() != NULL );
2713 if (!GetWindow())
2714 return wxACC_FAIL;
2715
2716 *childId = (int) GetWindow()->GetChildren().GetCount();
2717 return wxACC_OK;
2718 }
2719
2720 // Gets the specified child (starting from 1).
2721 // If *child is NULL and return value is wxACC_OK,
2722 // this means that the child is a simple element and
2723 // not an accessible object.
2724 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2725 {
2726 wxASSERT( GetWindow() != NULL );
2727 if (!GetWindow())
2728 return wxACC_FAIL;
2729
2730 if (childId == 0)
2731 {
2732 *child = this;
2733 return wxACC_OK;
2734 }
2735
2736 if (childId > (int) GetWindow()->GetChildren().GetCount())
2737 return wxACC_FAIL;
2738
2739 wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2740 *child = childWindow->GetOrCreateAccessible();
2741 if (*child)
2742 return wxACC_OK;
2743 else
2744 return wxACC_FAIL;
2745 }
2746
2747 // Gets the parent, or NULL.
2748 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2749 {
2750 wxASSERT( GetWindow() != NULL );
2751 if (!GetWindow())
2752 return wxACC_FAIL;
2753
2754 wxWindow* parentWindow = GetWindow()->GetParent();
2755 if (!parentWindow)
2756 {
2757 *parent = NULL;
2758 return wxACC_OK;
2759 }
2760 else
2761 {
2762 *parent = parentWindow->GetOrCreateAccessible();
2763 if (*parent)
2764 return wxACC_OK;
2765 else
2766 return wxACC_FAIL;
2767 }
2768 }
2769
2770 // Performs the default action. childId is 0 (the action for this object)
2771 // or > 0 (the action for a child).
2772 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2773 // window (e.g. an edit control).
2774 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2775 {
2776 wxASSERT( GetWindow() != NULL );
2777 if (!GetWindow())
2778 return wxACC_FAIL;
2779
2780 return wxACC_NOT_IMPLEMENTED;
2781 }
2782
2783 // Gets the default action for this object (0) or > 0 (the action for a child).
2784 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2785 // string if there is no action.
2786 // The retrieved string describes the action that is performed on an object,
2787 // not what the object does as a result. For example, a toolbar button that prints
2788 // a document has a default action of "Press" rather than "Prints the current document."
2789 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2790 {
2791 wxASSERT( GetWindow() != NULL );
2792 if (!GetWindow())
2793 return wxACC_FAIL;
2794
2795 return wxACC_NOT_IMPLEMENTED;
2796 }
2797
2798 // Returns the description for this object or a child.
2799 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2800 {
2801 wxASSERT( GetWindow() != NULL );
2802 if (!GetWindow())
2803 return wxACC_FAIL;
2804
2805 wxString ht(GetWindow()->GetHelpText());
2806 if (!ht.empty())
2807 {
2808 *description = ht;
2809 return wxACC_OK;
2810 }
2811 return wxACC_NOT_IMPLEMENTED;
2812 }
2813
2814 // Returns help text for this object or a child, similar to tooltip text.
2815 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2816 {
2817 wxASSERT( GetWindow() != NULL );
2818 if (!GetWindow())
2819 return wxACC_FAIL;
2820
2821 wxString ht(GetWindow()->GetHelpText());
2822 if (!ht.empty())
2823 {
2824 *helpText = ht;
2825 return wxACC_OK;
2826 }
2827 return wxACC_NOT_IMPLEMENTED;
2828 }
2829
2830 // Returns the keyboard shortcut for this object or child.
2831 // Return e.g. ALT+K
2832 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2833 {
2834 wxASSERT( GetWindow() != NULL );
2835 if (!GetWindow())
2836 return wxACC_FAIL;
2837
2838 return wxACC_NOT_IMPLEMENTED;
2839 }
2840
2841 // Returns a role constant.
2842 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2843 {
2844 wxASSERT( GetWindow() != NULL );
2845 if (!GetWindow())
2846 return wxACC_FAIL;
2847
2848 // If a child, leave wxWidgets to call the function on the actual
2849 // child object.
2850 if (childId > 0)
2851 return wxACC_NOT_IMPLEMENTED;
2852
2853 if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2854 return wxACC_NOT_IMPLEMENTED;
2855 #if wxUSE_STATUSBAR
2856 if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2857 return wxACC_NOT_IMPLEMENTED;
2858 #endif
2859 #if wxUSE_TOOLBAR
2860 if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2861 return wxACC_NOT_IMPLEMENTED;
2862 #endif
2863
2864 //*role = wxROLE_SYSTEM_CLIENT;
2865 *role = wxROLE_SYSTEM_CLIENT;
2866 return wxACC_OK;
2867
2868 #if 0
2869 return wxACC_NOT_IMPLEMENTED;
2870 #endif
2871 }
2872
2873 // Returns a state constant.
2874 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2875 {
2876 wxASSERT( GetWindow() != NULL );
2877 if (!GetWindow())
2878 return wxACC_FAIL;
2879
2880 // If a child, leave wxWidgets to call the function on the actual
2881 // child object.
2882 if (childId > 0)
2883 return wxACC_NOT_IMPLEMENTED;
2884
2885 if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2886 return wxACC_NOT_IMPLEMENTED;
2887
2888 #if wxUSE_STATUSBAR
2889 if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2890 return wxACC_NOT_IMPLEMENTED;
2891 #endif
2892 #if wxUSE_TOOLBAR
2893 if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2894 return wxACC_NOT_IMPLEMENTED;
2895 #endif
2896
2897 *state = 0;
2898 return wxACC_OK;
2899
2900 #if 0
2901 return wxACC_NOT_IMPLEMENTED;
2902 #endif
2903 }
2904
2905 // Returns a localized string representing the value for the object
2906 // or child.
2907 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2908 {
2909 wxASSERT( GetWindow() != NULL );
2910 if (!GetWindow())
2911 return wxACC_FAIL;
2912
2913 return wxACC_NOT_IMPLEMENTED;
2914 }
2915
2916 // Selects the object or child.
2917 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2918 {
2919 wxASSERT( GetWindow() != NULL );
2920 if (!GetWindow())
2921 return wxACC_FAIL;
2922
2923 return wxACC_NOT_IMPLEMENTED;
2924 }
2925
2926 // Gets the window with the keyboard focus.
2927 // If childId is 0 and child is NULL, no object in
2928 // this subhierarchy has the focus.
2929 // If this object has the focus, child should be 'this'.
2930 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2931 {
2932 wxASSERT( GetWindow() != NULL );
2933 if (!GetWindow())
2934 return wxACC_FAIL;
2935
2936 return wxACC_NOT_IMPLEMENTED;
2937 }
2938
2939 // Gets a variant representing the selected children
2940 // of this object.
2941 // Acceptable values:
2942 // - a null variant (IsNull() returns true)
2943 // - a list variant (GetType() == wxT("list")
2944 // - an integer representing the selected child element,
2945 // or 0 if this object is selected (GetType() == wxT("long")
2946 // - a "void*" pointer to a wxAccessible child object
2947 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
2948 {
2949 wxASSERT( GetWindow() != NULL );
2950 if (!GetWindow())
2951 return wxACC_FAIL;
2952
2953 return wxACC_NOT_IMPLEMENTED;
2954 }
2955
2956 #endif // wxUSE_ACCESSIBILITY
wxWidgets (Impactor)