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corrected misleading comment about DllGetVersion()
[wxWidgets.git] / src / common / wincmn.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: 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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
21 #pragma implementation "windowbase.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/string.h"
33 #include "wx/log.h"
34 #include "wx/intl.h"
35 #include "wx/frame.h"
36 #include "wx/defs.h"
37 #include "wx/window.h"
38 #include "wx/control.h"
39 #include "wx/checkbox.h"
40 #include "wx/radiobut.h"
41 #include "wx/statbox.h"
42 #include "wx/textctrl.h"
43 #include "wx/settings.h"
44 #include "wx/dialog.h"
45 #include "wx/msgdlg.h"
46 #include "wx/statusbr.h"
47 #include "wx/toolbar.h"
48 #include "wx/dcclient.h"
49 #endif //WX_PRECOMP
50
51 #if defined(__WXMAC__) && wxUSE_SCROLLBAR
52 #include "wx/scrolbar.h"
53 #endif
54
55 #if wxUSE_CONSTRAINTS
56 #include "wx/layout.h"
57 #endif // wxUSE_CONSTRAINTS
58
59 #include "wx/sizer.h"
60
61 #if wxUSE_DRAG_AND_DROP
62 #include "wx/dnd.h"
63 #endif // wxUSE_DRAG_AND_DROP
64
65 #if wxUSE_ACCESSIBILITY
66 #include "wx/access.h"
67 #endif
68
69 #if wxUSE_HELP
70 #include "wx/cshelp.h"
71 #endif // wxUSE_HELP
72
73 #if wxUSE_TOOLTIPS
74 #include "wx/tooltip.h"
75 #endif // wxUSE_TOOLTIPS
76
77 #if wxUSE_CARET
78 #include "wx/caret.h"
79 #endif // wxUSE_CARET
80
81 #if wxUSE_DISPLAY
82 #include "wx/display.h"
83 #endif
84
85 #if wxUSE_SYSTEM_OPTIONS
86 #include "wx/sysopt.h"
87 #endif
88
89 // ----------------------------------------------------------------------------
90 // static data
91 // ----------------------------------------------------------------------------
92
93 #if defined(__WXPALMOS__)
94 int wxWindowBase::ms_lastControlId = 32767;
95 #elif defined(__WXPM__)
96 int wxWindowBase::ms_lastControlId = 2000;
97 #else
98 int wxWindowBase::ms_lastControlId = -200;
99 #endif
100
101 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
102
103 // ----------------------------------------------------------------------------
104 // event table
105 // ----------------------------------------------------------------------------
106
107 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
108 EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
109 EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
110 EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
111
112 #if wxUSE_HELP
113 EVT_HELP(wxID_ANY, wxWindowBase::OnHelp)
114 #endif // wxUSE_HELP
115
116 END_EVENT_TABLE()
117
118 // ============================================================================
119 // implementation of the common functionality of the wxWindow class
120 // ============================================================================
121
122 // ----------------------------------------------------------------------------
123 // initialization
124 // ----------------------------------------------------------------------------
125
126 // the default initialization
127 wxWindowBase::wxWindowBase()
128 {
129 // no window yet, no parent nor children
130 m_parent = (wxWindow *)NULL;
131 m_windowId = wxID_ANY;
132
133 // no constraints on the minimal window size
134 m_minWidth =
135 m_maxWidth = wxDefaultCoord;
136 m_minHeight =
137 m_maxHeight = wxDefaultCoord;
138
139 // invalidiated cache value
140 m_bestSizeCache = wxDefaultSize;
141
142 // window are created enabled and visible by default
143 m_isShown =
144 m_isEnabled = true;
145
146 // the default event handler is just this window
147 m_eventHandler = this;
148
149 #if wxUSE_VALIDATORS
150 // no validator
151 m_windowValidator = (wxValidator *) NULL;
152 #endif // wxUSE_VALIDATORS
153
154 // the colours/fonts are default for now, so leave m_font,
155 // m_backgroundColour and m_foregroundColour uninitialized and set those
156 m_hasBgCol =
157 m_hasFgCol =
158 m_hasFont = false;
159 m_inheritBgCol =
160 m_inheritFgCol =
161 m_inheritFont = false;
162
163 // no style bits
164 m_exStyle =
165 m_windowStyle = 0;
166
167 m_backgroundStyle = wxBG_STYLE_SYSTEM;
168
169 #if wxUSE_CONSTRAINTS
170 // no constraints whatsoever
171 m_constraints = (wxLayoutConstraints *) NULL;
172 m_constraintsInvolvedIn = (wxWindowList *) NULL;
173 #endif // wxUSE_CONSTRAINTS
174
175 m_windowSizer = (wxSizer *) NULL;
176 m_containingSizer = (wxSizer *) NULL;
177 m_autoLayout = false;
178
179 #if wxUSE_DRAG_AND_DROP
180 m_dropTarget = (wxDropTarget *)NULL;
181 #endif // wxUSE_DRAG_AND_DROP
182
183 #if wxUSE_TOOLTIPS
184 m_tooltip = (wxToolTip *)NULL;
185 #endif // wxUSE_TOOLTIPS
186
187 #if wxUSE_CARET
188 m_caret = (wxCaret *)NULL;
189 #endif // wxUSE_CARET
190
191 #if wxUSE_PALETTE
192 m_hasCustomPalette = false;
193 #endif // wxUSE_PALETTE
194
195 #if wxUSE_ACCESSIBILITY
196 m_accessible = NULL;
197 #endif
198
199 m_virtualSize = wxDefaultSize;
200
201 m_minVirtualWidth =
202 m_maxVirtualWidth = wxDefaultCoord;
203 m_minVirtualHeight =
204 m_maxVirtualHeight = wxDefaultCoord;
205
206 m_windowVariant = wxWINDOW_VARIANT_NORMAL;
207 #if wxUSE_SYSTEM_OPTIONS
208 if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) )
209 {
210 m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ;
211 }
212 #endif
213
214 // Whether we're using the current theme for this window (wxGTK only for now)
215 m_themeEnabled = false;
216
217 // VZ: this one shouldn't exist...
218 m_isBeingDeleted = false;
219
220 // Reserved for future use
221 m_windowReserved = NULL;
222 }
223
224 // common part of window creation process
225 bool wxWindowBase::CreateBase(wxWindowBase *parent,
226 wxWindowID id,
227 const wxPoint& WXUNUSED(pos),
228 const wxSize& WXUNUSED(size),
229 long style,
230 const wxValidator& wxVALIDATOR_PARAM(validator),
231 const wxString& name)
232 {
233 #if wxUSE_STATBOX
234 // wxGTK doesn't allow to create controls with static box as the parent so
235 // this will result in a crash when the program is ported to wxGTK so warn
236 // the user about it
237
238 // if you get this assert, the correct solution is to create the controls
239 // as siblings of the static box
240 wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
241 _T("wxStaticBox can't be used as a window parent!") );
242 #endif // wxUSE_STATBOX
243
244 // ids are limited to 16 bits under MSW so if you care about portability,
245 // it's not a good idea to use ids out of this range (and negative ids are
246 // reserved for wxWidgets own usage)
247 wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
248 _T("invalid id value") );
249
250 // generate a new id if the user doesn't care about it
251 m_windowId = id == wxID_ANY ? NewControlId() : id;
252
253 SetName(name);
254 SetWindowStyleFlag(style);
255 SetParent(parent);
256
257 #if wxUSE_VALIDATORS
258 SetValidator(validator);
259 #endif // wxUSE_VALIDATORS
260
261 // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
262 // have it too - like this it's possible to set it only in the top level
263 // dialog/frame and all children will inherit it by defult
264 if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
265 {
266 SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
267 }
268
269 return true;
270 }
271
272 // ----------------------------------------------------------------------------
273 // destruction
274 // ----------------------------------------------------------------------------
275
276 // common clean up
277 wxWindowBase::~wxWindowBase()
278 {
279 wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
280
281 // FIXME if these 2 cases result from programming errors in the user code
282 // we should probably assert here instead of silently fixing them
283
284 // Just in case the window has been Closed, but we're then deleting
285 // immediately: don't leave dangling pointers.
286 wxPendingDelete.DeleteObject(this);
287
288 // Just in case we've loaded a top-level window via LoadNativeDialog but
289 // we weren't a dialog class
290 wxTopLevelWindows.DeleteObject((wxWindow*)this);
291
292 wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
293
294 // reset the dangling pointer our parent window may keep to us
295 if ( m_parent )
296 {
297 if ( m_parent->GetDefaultItem() == this )
298 {
299 m_parent->SetDefaultItem(NULL);
300 }
301
302 m_parent->RemoveChild(this);
303 }
304
305 #if wxUSE_CARET
306 delete m_caret;
307 #endif // wxUSE_CARET
308
309 #if wxUSE_VALIDATORS
310 delete m_windowValidator;
311 #endif // wxUSE_VALIDATORS
312
313 #if wxUSE_CONSTRAINTS
314 // Have to delete constraints/sizer FIRST otherwise sizers may try to look
315 // at deleted windows as they delete themselves.
316 DeleteRelatedConstraints();
317
318 if ( m_constraints )
319 {
320 // This removes any dangling pointers to this window in other windows'
321 // constraintsInvolvedIn lists.
322 UnsetConstraints(m_constraints);
323 delete m_constraints;
324 m_constraints = NULL;
325 }
326 #endif // wxUSE_CONSTRAINTS
327
328 if ( m_containingSizer )
329 m_containingSizer->Detach( (wxWindow*)this );
330
331 delete m_windowSizer;
332
333 #if wxUSE_DRAG_AND_DROP
334 delete m_dropTarget;
335 #endif // wxUSE_DRAG_AND_DROP
336
337 #if wxUSE_TOOLTIPS
338 delete m_tooltip;
339 #endif // wxUSE_TOOLTIPS
340
341 #if wxUSE_ACCESSIBILITY
342 delete m_accessible;
343 #endif
344 }
345
346 bool wxWindowBase::Destroy()
347 {
348 delete this;
349
350 return true;
351 }
352
353 bool wxWindowBase::Close(bool force)
354 {
355 wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
356 event.SetEventObject(this);
357 event.SetCanVeto(!force);
358
359 // return false if window wasn't closed because the application vetoed the
360 // close event
361 return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
362 }
363
364 bool wxWindowBase::DestroyChildren()
365 {
366 wxWindowList::compatibility_iterator node;
367 for ( ;; )
368 {
369 // we iterate until the list becomes empty
370 node = GetChildren().GetFirst();
371 if ( !node )
372 break;
373
374 wxWindow *child = node->GetData();
375
376 // note that we really want to call delete and not ->Destroy() here
377 // because we want to delete the child immediately, before we are
378 // deleted, and delayed deletion would result in problems as our (top
379 // level) child could outlive its parent
380 delete child;
381
382 wxASSERT_MSG( !GetChildren().Find(child),
383 wxT("child didn't remove itself using RemoveChild()") );
384 }
385
386 return true;
387 }
388
389 // ----------------------------------------------------------------------------
390 // size/position related methods
391 // ----------------------------------------------------------------------------
392
393 // centre the window with respect to its parent in either (or both) directions
394 void wxWindowBase::Centre(int direction)
395 {
396 // the position/size of the parent window or of the entire screen
397 wxPoint posParent;
398 int widthParent, heightParent;
399
400 wxWindow *parent = NULL;
401 wxTopLevelWindow *winTop = NULL;
402
403 if ( !(direction & wxCENTRE_ON_SCREEN) )
404 {
405 // find the parent to centre this window on: it should be the
406 // immediate parent for the controls but the top level parent for the
407 // top level windows (like dialogs)
408 parent = GetParent();
409 if ( IsTopLevel() )
410 {
411 while ( parent && !parent->IsTopLevel() )
412 {
413 parent = parent->GetParent();
414 }
415 }
416
417 // there is no wxTopLevelWindow under wxMotif yet
418 #ifndef __WXMOTIF__
419 // we shouldn't center the dialog on the iconized window: under
420 // Windows, for example, this places it completely off the screen
421 if ( parent )
422 {
423 winTop = wxDynamicCast(parent, wxTopLevelWindow);
424 if ( winTop && winTop->IsIconized() )
425 {
426 winTop = NULL;
427 parent = NULL;
428 }
429 }
430 #endif // __WXMOTIF__
431
432 // did we find the parent?
433 if ( !parent )
434 {
435 // no other choice
436 direction |= wxCENTRE_ON_SCREEN;
437 }
438 }
439
440 if ( direction & wxCENTRE_ON_SCREEN )
441 {
442 //RN: If we are using wxDisplay we get
443 //the dimensions of the monitor the window is on,
444 //otherwise we get the dimensions of the primary monitor
445 //FIXME: wxDisplay::GetFromWindow only implemented on MSW
446 #if wxUSE_DISPLAY && defined(__WXMSW__)
447 int nDisplay = wxDisplay::GetFromWindow((wxWindow*)this);
448 if(nDisplay != wxNOT_FOUND)
449 {
450 wxDisplay windowDisplay(nDisplay);
451 wxRect displayRect = windowDisplay.GetGeometry();
452 widthParent = displayRect.width;
453 heightParent = displayRect.height;
454 }
455 else
456 #endif
457 // centre with respect to the whole screen
458 wxDisplaySize(&widthParent, &heightParent);
459 }
460 else
461 {
462 if ( IsTopLevel() )
463 {
464 if(winTop)
465 winTop->GetRectForTopLevelChildren(&posParent.x, &posParent.y, &widthParent, &heightParent);
466 else
467 {
468 // centre on the parent
469 parent->GetSize(&widthParent, &heightParent);
470
471 // adjust to the parents position
472 posParent = parent->GetPosition();
473 }
474 }
475 else
476 {
477 // centre inside the parents client rectangle
478 parent->GetClientSize(&widthParent, &heightParent);
479 }
480 }
481
482 int width, height;
483 GetSize(&width, &height);
484
485 int xNew = wxDefaultCoord,
486 yNew = wxDefaultCoord;
487
488 if ( direction & wxHORIZONTAL )
489 xNew = (widthParent - width)/2;
490
491 if ( direction & wxVERTICAL )
492 yNew = (heightParent - height)/2;
493
494 xNew += posParent.x;
495 yNew += posParent.y;
496
497 // FIXME: This needs to get the client display rect of the display
498 // the window is (via wxDisplay::GetFromWindow).
499
500 // Base size of the visible dimensions of the display
501 // to take into account the taskbar. And the Mac menu bar at top.
502 wxRect clientrect = wxGetClientDisplayRect();
503
504 // NB: in wxMSW, negative position may not necessarily mean "out of screen",
505 // but it may mean that the window is placed on other than the main
506 // display. Therefore we only make sure centered window is on the main display
507 // if the parent is at least partially present here.
508 if (posParent.x + widthParent >= 0) // if parent is (partially) on the main display
509 {
510 if (xNew < clientrect.GetLeft())
511 xNew = clientrect.GetLeft();
512 else if (xNew + width > clientrect.GetRight())
513 xNew = clientrect.GetRight() - width;
514 }
515 if (posParent.y + heightParent >= 0) // if parent is (partially) on the main display
516 {
517 if (yNew + height > clientrect.GetBottom())
518 yNew = clientrect.GetBottom() - height;
519
520 // Make certain that the title bar is initially visible
521 // always, even if this would push the bottom of the
522 // dialog off the visible area of the display
523 if (yNew < clientrect.GetTop())
524 yNew = clientrect.GetTop();
525 }
526
527 // move the window to this position (keeping the old size but using
528 // SetSize() and not Move() to allow xNew and/or yNew to be wxDefaultCoord)
529 SetSize(xNew, yNew, width, height, wxSIZE_ALLOW_MINUS_ONE);
530 }
531
532 // fits the window around the children
533 void wxWindowBase::Fit()
534 {
535 if ( GetChildren().GetCount() > 0 )
536 {
537 SetSize(GetBestSize());
538 }
539 //else: do nothing if we have no children
540 }
541
542 // fits virtual size (ie. scrolled area etc.) around children
543 void wxWindowBase::FitInside()
544 {
545 if ( GetChildren().GetCount() > 0 )
546 {
547 SetVirtualSize( GetBestVirtualSize() );
548 }
549 }
550
551 // On Mac, scrollbars are explicitly children.
552 #ifdef __WXMAC__
553 static bool wxHasRealChildren(const wxWindowBase* win)
554 {
555 int realChildCount = 0;
556
557 for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
558 node;
559 node = node->GetNext() )
560 {
561 wxWindow *win = node->GetData();
562 if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
563 realChildCount ++;
564 }
565 return (realChildCount > 0);
566 }
567 #endif
568
569 void wxWindowBase::InvalidateBestSize()
570 {
571 m_bestSizeCache = wxDefaultSize;
572
573 // parent's best size calculation may depend on its children's
574 // best sizes, so let's invalidate it as well to be safe:
575 if (m_parent)
576 m_parent->InvalidateBestSize();
577 }
578
579 // return the size best suited for the current window
580 wxSize wxWindowBase::DoGetBestSize() const
581 {
582 wxSize best;
583
584 if ( m_windowSizer )
585 {
586 best = m_windowSizer->GetMinSize();
587 }
588 #if wxUSE_CONSTRAINTS
589 else if ( m_constraints )
590 {
591 wxConstCast(this, wxWindowBase)->SatisfyConstraints();
592
593 // our minimal acceptable size is such that all our windows fit inside
594 int maxX = 0,
595 maxY = 0;
596
597 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
598 node;
599 node = node->GetNext() )
600 {
601 wxLayoutConstraints *c = node->GetData()->GetConstraints();
602 if ( !c )
603 {
604 // it's not normal that we have an unconstrained child, but
605 // what can we do about it?
606 continue;
607 }
608
609 int x = c->right.GetValue(),
610 y = c->bottom.GetValue();
611
612 if ( x > maxX )
613 maxX = x;
614
615 if ( y > maxY )
616 maxY = y;
617
618 // TODO: we must calculate the overlaps somehow, otherwise we
619 // will never return a size bigger than the current one :-(
620 }
621
622 best = wxSize(maxX, maxY);
623 }
624 #endif // wxUSE_CONSTRAINTS
625 else if ( !GetChildren().empty()
626 #ifdef __WXMAC__
627 && wxHasRealChildren(this)
628 #endif
629 )
630 {
631 // our minimal acceptable size is such that all our visible child windows fit inside
632 int maxX = 0,
633 maxY = 0;
634
635 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
636 node;
637 node = node->GetNext() )
638 {
639 wxWindow *win = node->GetData();
640 if ( win->IsTopLevel() || ( ! win->IsShown() )
641 #if wxUSE_STATUSBAR
642 || wxDynamicCast(win, wxStatusBar)
643 #endif // wxUSE_STATUSBAR
644 )
645 {
646 // dialogs and frames lie in different top level windows -
647 // don't deal with them here; as for the status bars, they
648 // don't lie in the client area at all
649 continue;
650 }
651
652 int wx, wy, ww, wh;
653 win->GetPosition(&wx, &wy);
654
655 // if the window hadn't been positioned yet, assume that it is in
656 // the origin
657 if ( wx == wxDefaultCoord )
658 wx = 0;
659 if ( wy == wxDefaultCoord )
660 wy = 0;
661
662 win->GetSize(&ww, &wh);
663 if ( wx + ww > maxX )
664 maxX = wx + ww;
665 if ( wy + wh > maxY )
666 maxY = wy + wh;
667 }
668
669 // for compatibility with the old versions and because it really looks
670 // slightly more pretty like this, add a pad
671 maxX += 7;
672 maxY += 14;
673
674 best = wxSize(maxX, maxY);
675 }
676 else // ! has children
677 {
678 // for a generic window there is no natural best size so, if the
679 // minimal size is not set, use the current size but take care to
680 // remember it as minimal size for the next time because our best size
681 // should be constant: otherwise we could get into a situation when the
682 // window is initially at some size, then expanded to a larger size and
683 // then, when the containing window is shrunk back (because our initial
684 // best size had been used for computing the parent min size), we can't
685 // be shrunk back any more because our best size is now bigger
686 if ( !GetMinSize().IsFullySpecified() )
687 wxConstCast(this, wxWindowBase)->SetMinSize(GetSize());
688
689 // return as-is, unadjusted by the client size difference.
690 return GetMinSize();
691 }
692
693 // Add any difference between size and client size
694 wxSize diff = GetSize() - GetClientSize();
695 best.x += wxMax(0, diff.x);
696 best.y += wxMax(0, diff.y);
697
698 return best;
699 }
700
701
702 wxSize wxWindowBase::GetBestFittingSize() const
703 {
704 // merge the best size with the min size, giving priority to the min size
705 wxSize min = GetMinSize();
706 if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
707 {
708 wxSize best = GetBestSize();
709 if (min.x == wxDefaultCoord) min.x = best.x;
710 if (min.y == wxDefaultCoord) min.y = best.y;
711 }
712 return min;
713 }
714
715
716 void wxWindowBase::SetBestFittingSize(const wxSize& size)
717 {
718 // Set the min size to the size passed in. This will usually either be
719 // wxDefaultSize or the size passed to this window's ctor/Create function.
720 SetMinSize(size);
721
722 // Merge the size with the best size if needed
723 wxSize best = GetBestFittingSize();
724
725 // If the current size doesn't match then change it
726 if (GetSize() != best)
727 SetSize(best);
728 }
729
730
731 // by default the origin is not shifted
732 wxPoint wxWindowBase::GetClientAreaOrigin() const
733 {
734 return wxPoint(0,0);
735 }
736
737 // set the min/max size of the window
738 void wxWindowBase::DoSetSizeHints(int minW, int minH,
739 int maxW, int maxH,
740 int WXUNUSED(incW), int WXUNUSED(incH))
741 {
742 // setting min width greater than max width leads to infinite loops under
743 // X11 and generally doesn't make any sense, so don't allow it
744 wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
745 (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
746 _T("min width/height must be less than max width/height!") );
747
748 m_minWidth = minW;
749 m_maxWidth = maxW;
750 m_minHeight = minH;
751 m_maxHeight = maxH;
752 }
753
754 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
755 {
756 if ( m_windowVariant != variant )
757 {
758 m_windowVariant = variant;
759
760 DoSetWindowVariant(variant);
761 }
762 }
763
764 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
765 {
766 // adjust the font height to correspond to our new variant (notice that
767 // we're only called if something really changed)
768 wxFont font = GetFont();
769 int size = font.GetPointSize();
770 switch ( variant )
771 {
772 case wxWINDOW_VARIANT_NORMAL:
773 break;
774
775 case wxWINDOW_VARIANT_SMALL:
776 size *= 3;
777 size /= 4;
778 break;
779
780 case wxWINDOW_VARIANT_MINI:
781 size *= 2;
782 size /= 3;
783 break;
784
785 case wxWINDOW_VARIANT_LARGE:
786 size *= 5;
787 size /= 4;
788 break;
789
790 default:
791 wxFAIL_MSG(_T("unexpected window variant"));
792 break;
793 }
794
795 font.SetPointSize(size);
796 SetFont(font);
797 }
798
799 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
800 int maxW, int maxH )
801 {
802 m_minVirtualWidth = minW;
803 m_maxVirtualWidth = maxW;
804 m_minVirtualHeight = minH;
805 m_maxVirtualHeight = maxH;
806 }
807
808 void wxWindowBase::DoSetVirtualSize( int x, int y )
809 {
810 if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
811 x = m_minVirtualWidth;
812 if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
813 x = m_maxVirtualWidth;
814 if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
815 y = m_minVirtualHeight;
816 if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
817 y = m_maxVirtualHeight;
818
819 m_virtualSize = wxSize(x, y);
820 }
821
822 wxSize wxWindowBase::DoGetVirtualSize() const
823 {
824 if ( m_virtualSize.IsFullySpecified() )
825 return m_virtualSize;
826
827 wxSize size = GetClientSize();
828 if ( m_virtualSize.x != wxDefaultCoord )
829 size.x = m_virtualSize.x;
830
831 if ( m_virtualSize.y != wxDefaultCoord )
832 size.y = m_virtualSize.y;
833
834 return size;
835 }
836
837 // ----------------------------------------------------------------------------
838 // show/hide/enable/disable the window
839 // ----------------------------------------------------------------------------
840
841 bool wxWindowBase::Show(bool show)
842 {
843 if ( show != m_isShown )
844 {
845 m_isShown = show;
846
847 return true;
848 }
849 else
850 {
851 return false;
852 }
853 }
854
855 bool wxWindowBase::Enable(bool enable)
856 {
857 if ( enable != m_isEnabled )
858 {
859 m_isEnabled = enable;
860
861 return true;
862 }
863 else
864 {
865 return false;
866 }
867 }
868 // ----------------------------------------------------------------------------
869 // RTTI
870 // ----------------------------------------------------------------------------
871
872 bool wxWindowBase::IsTopLevel() const
873 {
874 return false;
875 }
876
877 // ----------------------------------------------------------------------------
878 // reparenting the window
879 // ----------------------------------------------------------------------------
880
881 void wxWindowBase::AddChild(wxWindowBase *child)
882 {
883 wxCHECK_RET( child, wxT("can't add a NULL child") );
884
885 // this should never happen and it will lead to a crash later if it does
886 // because RemoveChild() will remove only one node from the children list
887 // and the other(s) one(s) will be left with dangling pointers in them
888 wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
889
890 GetChildren().Append((wxWindow*)child);
891 child->SetParent(this);
892 }
893
894 void wxWindowBase::RemoveChild(wxWindowBase *child)
895 {
896 wxCHECK_RET( child, wxT("can't remove a NULL child") );
897
898 GetChildren().DeleteObject((wxWindow *)child);
899 child->SetParent(NULL);
900 }
901
902 bool wxWindowBase::Reparent(wxWindowBase *newParent)
903 {
904 wxWindow *oldParent = GetParent();
905 if ( newParent == oldParent )
906 {
907 // nothing done
908 return false;
909 }
910
911 // unlink this window from the existing parent.
912 if ( oldParent )
913 {
914 oldParent->RemoveChild(this);
915 }
916 else
917 {
918 wxTopLevelWindows.DeleteObject((wxWindow *)this);
919 }
920
921 // add it to the new one
922 if ( newParent )
923 {
924 newParent->AddChild(this);
925 }
926 else
927 {
928 wxTopLevelWindows.Append((wxWindow *)this);
929 }
930
931 return true;
932 }
933
934 // ----------------------------------------------------------------------------
935 // event handler stuff
936 // ----------------------------------------------------------------------------
937
938 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
939 {
940 wxEvtHandler *handlerOld = GetEventHandler();
941
942 handler->SetNextHandler(handlerOld);
943
944 if ( handlerOld )
945 GetEventHandler()->SetPreviousHandler(handler);
946
947 SetEventHandler(handler);
948 }
949
950 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
951 {
952 wxEvtHandler *handlerA = GetEventHandler();
953 if ( handlerA )
954 {
955 wxEvtHandler *handlerB = handlerA->GetNextHandler();
956 handlerA->SetNextHandler((wxEvtHandler *)NULL);
957
958 if ( handlerB )
959 handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
960 SetEventHandler(handlerB);
961
962 if ( deleteHandler )
963 {
964 delete handlerA;
965 handlerA = (wxEvtHandler *)NULL;
966 }
967 }
968
969 return handlerA;
970 }
971
972 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
973 {
974 wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
975
976 wxEvtHandler *handlerPrev = NULL,
977 *handlerCur = GetEventHandler();
978 while ( handlerCur )
979 {
980 wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
981
982 if ( handlerCur == handler )
983 {
984 if ( handlerPrev )
985 {
986 handlerPrev->SetNextHandler(handlerNext);
987 }
988 else
989 {
990 SetEventHandler(handlerNext);
991 }
992
993 if ( handlerNext )
994 {
995 handlerNext->SetPreviousHandler ( handlerPrev );
996 }
997
998 handler->SetNextHandler(NULL);
999 handler->SetPreviousHandler(NULL);
1000
1001 return true;
1002 }
1003
1004 handlerPrev = handlerCur;
1005 handlerCur = handlerNext;
1006 }
1007
1008 wxFAIL_MSG( _T("where has the event handler gone?") );
1009
1010 return false;
1011 }
1012
1013 // ----------------------------------------------------------------------------
1014 // colours, fonts &c
1015 // ----------------------------------------------------------------------------
1016
1017 void wxWindowBase::InheritAttributes()
1018 {
1019 const wxWindowBase * const parent = GetParent();
1020 if ( !parent )
1021 return;
1022
1023 // we only inherit attributes which had been explicitly set for the parent
1024 // which ensures that this only happens if the user really wants it and
1025 // not by default which wouldn't make any sense in modern GUIs where the
1026 // controls don't all use the same fonts (nor colours)
1027 if ( parent->m_inheritFont && !m_hasFont )
1028 SetFont(parent->GetFont());
1029
1030 // in addition, there is a possibility to explicitly forbid inheriting
1031 // colours at each class level by overriding ShouldInheritColours()
1032 if ( ShouldInheritColours() )
1033 {
1034 if ( parent->m_inheritFgCol && !m_hasFgCol )
1035 SetForegroundColour(parent->GetForegroundColour());
1036
1037 // inheriting (solid) background colour is wrong as it totally breaks
1038 // any kind of themed backgrounds
1039 //
1040 // instead, the controls should use the same background as their parent
1041 // (ideally by not drawing it at all)
1042 #if 0
1043 if ( parent->m_inheritBgCol && !m_hasBgCol )
1044 SetBackgroundColour(parent->GetBackgroundColour());
1045 #endif // 0
1046 }
1047 }
1048
1049 /* static */ wxVisualAttributes
1050 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1051 {
1052 // it is important to return valid values for all attributes from here,
1053 // GetXXX() below rely on this
1054 wxVisualAttributes attrs;
1055 attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
1056 attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
1057
1058 // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
1059 // the usual background colour than wxSYS_COLOUR_BTNFACE.
1060 // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
1061 // colour on other platforms.
1062
1063 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
1064 attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1065 #else
1066 attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
1067 #endif
1068 return attrs;
1069 }
1070
1071 wxColour wxWindowBase::GetBackgroundColour() const
1072 {
1073 if ( !m_backgroundColour.Ok() )
1074 {
1075 wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
1076
1077 // get our default background colour
1078 wxColour colBg = GetDefaultAttributes().colBg;
1079
1080 // we must return some valid colour to avoid redoing this every time
1081 // and also to avoid surprizing the applications written for older
1082 // wxWidgets versions where GetBackgroundColour() always returned
1083 // something -- so give them something even if it doesn't make sense
1084 // for this window (e.g. it has a themed background)
1085 if ( !colBg.Ok() )
1086 colBg = GetClassDefaultAttributes().colBg;
1087
1088 return colBg;
1089 }
1090 else
1091 return m_backgroundColour;
1092 }
1093
1094 wxColour wxWindowBase::GetForegroundColour() const
1095 {
1096 // logic is the same as above
1097 if ( !m_hasFgCol && !m_foregroundColour.Ok() )
1098 {
1099 wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
1100
1101 wxColour colFg = GetDefaultAttributes().colFg;
1102
1103 if ( !colFg.Ok() )
1104 colFg = GetClassDefaultAttributes().colFg;
1105
1106 return colFg;
1107 }
1108 else
1109 return m_foregroundColour;
1110 }
1111
1112 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
1113 {
1114 if ( colour == m_backgroundColour )
1115 return false;
1116
1117 m_hasBgCol = colour.Ok();
1118 if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
1119 m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
1120
1121 m_inheritBgCol = m_hasBgCol;
1122 m_backgroundColour = colour;
1123 SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1124 return true;
1125 }
1126
1127 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1128 {
1129 if (colour == m_foregroundColour )
1130 return false;
1131
1132 m_hasFgCol = colour.Ok();
1133 m_inheritFgCol = m_hasFgCol;
1134 m_foregroundColour = colour;
1135 SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1136 return true;
1137 }
1138
1139 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1140 {
1141 // setting an invalid cursor is ok, it means that we don't have any special
1142 // cursor
1143 if ( m_cursor == cursor )
1144 {
1145 // no change
1146 return false;
1147 }
1148
1149 m_cursor = cursor;
1150
1151 return true;
1152 }
1153
1154 wxFont wxWindowBase::GetFont() const
1155 {
1156 // logic is the same as in GetBackgroundColour()
1157 if ( !m_font.Ok() )
1158 {
1159 wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1160
1161 wxFont font = GetDefaultAttributes().font;
1162 if ( !font.Ok() )
1163 font = GetClassDefaultAttributes().font;
1164
1165 return font;
1166 }
1167 else
1168 return m_font;
1169 }
1170
1171 bool wxWindowBase::SetFont(const wxFont& font)
1172 {
1173 if ( font == m_font )
1174 {
1175 // no change
1176 return false;
1177 }
1178
1179 m_font = font;
1180 m_hasFont = font.Ok();
1181 m_inheritFont = m_hasFont;
1182
1183 InvalidateBestSize();
1184
1185 return true;
1186 }
1187
1188 #if wxUSE_PALETTE
1189
1190 void wxWindowBase::SetPalette(const wxPalette& pal)
1191 {
1192 m_hasCustomPalette = true;
1193 m_palette = pal;
1194
1195 // VZ: can anyone explain me what do we do here?
1196 wxWindowDC d((wxWindow *) this);
1197 d.SetPalette(pal);
1198 }
1199
1200 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1201 {
1202 wxWindow *win = (wxWindow *)this;
1203 while ( win && !win->HasCustomPalette() )
1204 {
1205 win = win->GetParent();
1206 }
1207
1208 return win;
1209 }
1210
1211 #endif // wxUSE_PALETTE
1212
1213 #if wxUSE_CARET
1214 void wxWindowBase::SetCaret(wxCaret *caret)
1215 {
1216 if ( m_caret )
1217 {
1218 delete m_caret;
1219 }
1220
1221 m_caret = caret;
1222
1223 if ( m_caret )
1224 {
1225 wxASSERT_MSG( m_caret->GetWindow() == this,
1226 wxT("caret should be created associated to this window") );
1227 }
1228 }
1229 #endif // wxUSE_CARET
1230
1231 #if wxUSE_VALIDATORS
1232 // ----------------------------------------------------------------------------
1233 // validators
1234 // ----------------------------------------------------------------------------
1235
1236 void wxWindowBase::SetValidator(const wxValidator& validator)
1237 {
1238 if ( m_windowValidator )
1239 delete m_windowValidator;
1240
1241 m_windowValidator = (wxValidator *)validator.Clone();
1242
1243 if ( m_windowValidator )
1244 m_windowValidator->SetWindow(this);
1245 }
1246 #endif // wxUSE_VALIDATORS
1247
1248 // ----------------------------------------------------------------------------
1249 // update region stuff
1250 // ----------------------------------------------------------------------------
1251
1252 wxRect wxWindowBase::GetUpdateClientRect() const
1253 {
1254 wxRegion rgnUpdate = GetUpdateRegion();
1255 rgnUpdate.Intersect(GetClientRect());
1256 wxRect rectUpdate = rgnUpdate.GetBox();
1257 wxPoint ptOrigin = GetClientAreaOrigin();
1258 rectUpdate.x -= ptOrigin.x;
1259 rectUpdate.y -= ptOrigin.y;
1260
1261 return rectUpdate;
1262 }
1263
1264 bool wxWindowBase::IsExposed(int x, int y) const
1265 {
1266 return m_updateRegion.Contains(x, y) != wxOutRegion;
1267 }
1268
1269 bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
1270 {
1271 return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1272 }
1273
1274 void wxWindowBase::ClearBackground()
1275 {
1276 // wxGTK uses its own version, no need to add never used code
1277 #ifndef __WXGTK__
1278 wxClientDC dc((wxWindow *)this);
1279 wxBrush brush(GetBackgroundColour(), wxSOLID);
1280 dc.SetBackground(brush);
1281 dc.Clear();
1282 #endif // __WXGTK__
1283 }
1284
1285 // ----------------------------------------------------------------------------
1286 // find child window by id or name
1287 // ----------------------------------------------------------------------------
1288
1289 wxWindow *wxWindowBase::FindWindow(long id) const
1290 {
1291 if ( id == m_windowId )
1292 return (wxWindow *)this;
1293
1294 wxWindowBase *res = (wxWindow *)NULL;
1295 wxWindowList::compatibility_iterator node;
1296 for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1297 {
1298 wxWindowBase *child = node->GetData();
1299 res = child->FindWindow( id );
1300 }
1301
1302 return (wxWindow *)res;
1303 }
1304
1305 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1306 {
1307 if ( name == m_windowName )
1308 return (wxWindow *)this;
1309
1310 wxWindowBase *res = (wxWindow *)NULL;
1311 wxWindowList::compatibility_iterator node;
1312 for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1313 {
1314 wxWindow *child = node->GetData();
1315 res = child->FindWindow(name);
1316 }
1317
1318 return (wxWindow *)res;
1319 }
1320
1321
1322 // find any window by id or name or label: If parent is non-NULL, look through
1323 // children for a label or title matching the specified string. If NULL, look
1324 // through all top-level windows.
1325 //
1326 // to avoid duplicating code we reuse the same helper function but with
1327 // different comparators
1328
1329 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1330 const wxString& label, long id);
1331
1332 static
1333 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1334 long WXUNUSED(id))
1335 {
1336 return win->GetLabel() == label;
1337 }
1338
1339 static
1340 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1341 long WXUNUSED(id))
1342 {
1343 return win->GetName() == label;
1344 }
1345
1346 static
1347 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1348 long id)
1349 {
1350 return win->GetId() == id;
1351 }
1352
1353 // recursive helper for the FindWindowByXXX() functions
1354 static
1355 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1356 const wxString& label,
1357 long id,
1358 wxFindWindowCmp cmp)
1359 {
1360 if ( parent )
1361 {
1362 // see if this is the one we're looking for
1363 if ( (*cmp)(parent, label, id) )
1364 return (wxWindow *)parent;
1365
1366 // It wasn't, so check all its children
1367 for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1368 node;
1369 node = node->GetNext() )
1370 {
1371 // recursively check each child
1372 wxWindow *win = (wxWindow *)node->GetData();
1373 wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1374 if (retwin)
1375 return retwin;
1376 }
1377 }
1378
1379 // Not found
1380 return NULL;
1381 }
1382
1383 // helper for FindWindowByXXX()
1384 static
1385 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1386 const wxString& label,
1387 long id,
1388 wxFindWindowCmp cmp)
1389 {
1390 if ( parent )
1391 {
1392 // just check parent and all its children
1393 return wxFindWindowRecursively(parent, label, id, cmp);
1394 }
1395
1396 // start at very top of wx's windows
1397 for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1398 node;
1399 node = node->GetNext() )
1400 {
1401 // recursively check each window & its children
1402 wxWindow *win = node->GetData();
1403 wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1404 if (retwin)
1405 return retwin;
1406 }
1407
1408 return NULL;
1409 }
1410
1411 /* static */
1412 wxWindow *
1413 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1414 {
1415 return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1416 }
1417
1418 /* static */
1419 wxWindow *
1420 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1421 {
1422 wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1423
1424 if ( !win )
1425 {
1426 // fall back to the label
1427 win = FindWindowByLabel(title, parent);
1428 }
1429
1430 return win;
1431 }
1432
1433 /* static */
1434 wxWindow *
1435 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1436 {
1437 return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1438 }
1439
1440 // ----------------------------------------------------------------------------
1441 // dialog oriented functions
1442 // ----------------------------------------------------------------------------
1443
1444 void wxWindowBase::MakeModal(bool modal)
1445 {
1446 // Disable all other windows
1447 if ( IsTopLevel() )
1448 {
1449 wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1450 while (node)
1451 {
1452 wxWindow *win = node->GetData();
1453 if (win != this)
1454 win->Enable(!modal);
1455
1456 node = node->GetNext();
1457 }
1458 }
1459 }
1460
1461 bool wxWindowBase::Validate()
1462 {
1463 #if wxUSE_VALIDATORS
1464 bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1465
1466 wxWindowList::compatibility_iterator node;
1467 for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1468 {
1469 wxWindowBase *child = node->GetData();
1470 wxValidator *validator = child->GetValidator();
1471 if ( validator && !validator->Validate((wxWindow *)this) )
1472 {
1473 return false;
1474 }
1475
1476 if ( recurse && !child->Validate() )
1477 {
1478 return false;
1479 }
1480 }
1481 #endif // wxUSE_VALIDATORS
1482
1483 return true;
1484 }
1485
1486 bool wxWindowBase::TransferDataToWindow()
1487 {
1488 #if wxUSE_VALIDATORS
1489 bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1490
1491 wxWindowList::compatibility_iterator node;
1492 for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1493 {
1494 wxWindowBase *child = node->GetData();
1495 wxValidator *validator = child->GetValidator();
1496 if ( validator && !validator->TransferToWindow() )
1497 {
1498 wxLogWarning(_("Could not transfer data to window"));
1499 #if wxUSE_LOG
1500 wxLog::FlushActive();
1501 #endif // wxUSE_LOG
1502
1503 return false;
1504 }
1505
1506 if ( recurse )
1507 {
1508 if ( !child->TransferDataToWindow() )
1509 {
1510 // warning already given
1511 return false;
1512 }
1513 }
1514 }
1515 #endif // wxUSE_VALIDATORS
1516
1517 return true;
1518 }
1519
1520 bool wxWindowBase::TransferDataFromWindow()
1521 {
1522 #if wxUSE_VALIDATORS
1523 bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1524
1525 wxWindowList::compatibility_iterator node;
1526 for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1527 {
1528 wxWindow *child = node->GetData();
1529 wxValidator *validator = child->GetValidator();
1530 if ( validator && !validator->TransferFromWindow() )
1531 {
1532 // nop warning here because the application is supposed to give
1533 // one itself - we don't know here what might have gone wrongly
1534
1535 return false;
1536 }
1537
1538 if ( recurse )
1539 {
1540 if ( !child->TransferDataFromWindow() )
1541 {
1542 // warning already given
1543 return false;
1544 }
1545 }
1546 }
1547 #endif // wxUSE_VALIDATORS
1548
1549 return true;
1550 }
1551
1552 void wxWindowBase::InitDialog()
1553 {
1554 wxInitDialogEvent event(GetId());
1555 event.SetEventObject( this );
1556 GetEventHandler()->ProcessEvent(event);
1557 }
1558
1559 // ----------------------------------------------------------------------------
1560 // context-sensitive help support
1561 // ----------------------------------------------------------------------------
1562
1563 #if wxUSE_HELP
1564
1565 // associate this help text with this window
1566 void wxWindowBase::SetHelpText(const wxString& text)
1567 {
1568 wxHelpProvider *helpProvider = wxHelpProvider::Get();
1569 if ( helpProvider )
1570 {
1571 helpProvider->AddHelp(this, text);
1572 }
1573 }
1574
1575 // associate this help text with all windows with the same id as this
1576 // one
1577 void wxWindowBase::SetHelpTextForId(const wxString& text)
1578 {
1579 wxHelpProvider *helpProvider = wxHelpProvider::Get();
1580 if ( helpProvider )
1581 {
1582 helpProvider->AddHelp(GetId(), text);
1583 }
1584 }
1585
1586 // get the help string associated with this window (may be empty)
1587 wxString wxWindowBase::GetHelpText() const
1588 {
1589 wxString text;
1590 wxHelpProvider *helpProvider = wxHelpProvider::Get();
1591 if ( helpProvider )
1592 {
1593 text = helpProvider->GetHelp(this);
1594 }
1595
1596 return text;
1597 }
1598
1599 // show help for this window
1600 void wxWindowBase::OnHelp(wxHelpEvent& event)
1601 {
1602 wxHelpProvider *helpProvider = wxHelpProvider::Get();
1603 if ( helpProvider )
1604 {
1605 if ( helpProvider->ShowHelp(this) )
1606 {
1607 // skip the event.Skip() below
1608 return;
1609 }
1610 }
1611
1612 event.Skip();
1613 }
1614
1615 #endif // wxUSE_HELP
1616
1617 // ----------------------------------------------------------------------------
1618 // tooltipsroot.Replace("\\", "/");
1619 // ----------------------------------------------------------------------------
1620
1621 #if wxUSE_TOOLTIPS
1622
1623 void wxWindowBase::SetToolTip( const wxString &tip )
1624 {
1625 // don't create the new tooltip if we already have one
1626 if ( m_tooltip )
1627 {
1628 m_tooltip->SetTip( tip );
1629 }
1630 else
1631 {
1632 SetToolTip( new wxToolTip( tip ) );
1633 }
1634
1635 // setting empty tooltip text does not remove the tooltip any more - use
1636 // SetToolTip((wxToolTip *)NULL) for this
1637 }
1638
1639 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1640 {
1641 if ( m_tooltip )
1642 delete m_tooltip;
1643
1644 m_tooltip = tooltip;
1645 }
1646
1647 #endif // wxUSE_TOOLTIPS
1648
1649 // ----------------------------------------------------------------------------
1650 // constraints and sizers
1651 // ----------------------------------------------------------------------------
1652
1653 #if wxUSE_CONSTRAINTS
1654
1655 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1656 {
1657 if ( m_constraints )
1658 {
1659 UnsetConstraints(m_constraints);
1660 delete m_constraints;
1661 }
1662 m_constraints = constraints;
1663 if ( m_constraints )
1664 {
1665 // Make sure other windows know they're part of a 'meaningful relationship'
1666 if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1667 m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1668 if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1669 m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1670 if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1671 m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1672 if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1673 m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1674 if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1675 m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1676 if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1677 m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1678 if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1679 m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1680 if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1681 m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1682 }
1683 }
1684
1685 // This removes any dangling pointers to this window in other windows'
1686 // constraintsInvolvedIn lists.
1687 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1688 {
1689 if ( c )
1690 {
1691 if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1692 c->left.GetOtherWindow()->RemoveConstraintReference(this);
1693 if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1694 c->top.GetOtherWindow()->RemoveConstraintReference(this);
1695 if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1696 c->right.GetOtherWindow()->RemoveConstraintReference(this);
1697 if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1698 c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1699 if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1700 c->width.GetOtherWindow()->RemoveConstraintReference(this);
1701 if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1702 c->height.GetOtherWindow()->RemoveConstraintReference(this);
1703 if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1704 c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1705 if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1706 c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1707 }
1708 }
1709
1710 // Back-pointer to other windows we're involved with, so if we delete this
1711 // window, we must delete any constraints we're involved with.
1712 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1713 {
1714 if ( !m_constraintsInvolvedIn )
1715 m_constraintsInvolvedIn = new wxWindowList;
1716 if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1717 m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1718 }
1719
1720 // REMOVE back-pointer to other windows we're involved with.
1721 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1722 {
1723 if ( m_constraintsInvolvedIn )
1724 m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1725 }
1726
1727 // Reset any constraints that mention this window
1728 void wxWindowBase::DeleteRelatedConstraints()
1729 {
1730 if ( m_constraintsInvolvedIn )
1731 {
1732 wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1733 while (node)
1734 {
1735 wxWindow *win = node->GetData();
1736 wxLayoutConstraints *constr = win->GetConstraints();
1737
1738 // Reset any constraints involving this window
1739 if ( constr )
1740 {
1741 constr->left.ResetIfWin(this);
1742 constr->top.ResetIfWin(this);
1743 constr->right.ResetIfWin(this);
1744 constr->bottom.ResetIfWin(this);
1745 constr->width.ResetIfWin(this);
1746 constr->height.ResetIfWin(this);
1747 constr->centreX.ResetIfWin(this);
1748 constr->centreY.ResetIfWin(this);
1749 }
1750
1751 wxWindowList::compatibility_iterator next = node->GetNext();
1752 m_constraintsInvolvedIn->Erase(node);
1753 node = next;
1754 }
1755
1756 delete m_constraintsInvolvedIn;
1757 m_constraintsInvolvedIn = (wxWindowList *) NULL;
1758 }
1759 }
1760
1761 #endif // wxUSE_CONSTRAINTS
1762
1763 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1764 {
1765 if ( sizer == m_windowSizer)
1766 return;
1767
1768 if ( deleteOld )
1769 delete m_windowSizer;
1770
1771 m_windowSizer = sizer;
1772
1773 SetAutoLayout( sizer != NULL );
1774 }
1775
1776 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1777 {
1778 SetSizer( sizer, deleteOld );
1779 sizer->SetSizeHints( (wxWindow*) this );
1780 }
1781
1782
1783 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1784 {
1785 // adding a window to a sizer twice is going to result in fatal and
1786 // hard to debug problems later because when deleting the second
1787 // associated wxSizerItem we're going to dereference a dangling
1788 // pointer; so try to detect this as early as possible
1789 wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1790 _T("Adding a window to the same sizer twice?") );
1791
1792 m_containingSizer = sizer;
1793 }
1794
1795 #if wxUSE_CONSTRAINTS
1796
1797 void wxWindowBase::SatisfyConstraints()
1798 {
1799 wxLayoutConstraints *constr = GetConstraints();
1800 bool wasOk = constr && constr->AreSatisfied();
1801
1802 ResetConstraints(); // Mark all constraints as unevaluated
1803
1804 int noChanges = 1;
1805
1806 // if we're a top level panel (i.e. our parent is frame/dialog), our
1807 // own constraints will never be satisfied any more unless we do it
1808 // here
1809 if ( wasOk )
1810 {
1811 while ( noChanges > 0 )
1812 {
1813 LayoutPhase1(&noChanges);
1814 }
1815 }
1816
1817 LayoutPhase2(&noChanges);
1818 }
1819
1820 #endif // wxUSE_CONSTRAINTS
1821
1822 bool wxWindowBase::Layout()
1823 {
1824 // If there is a sizer, use it instead of the constraints
1825 if ( GetSizer() )
1826 {
1827 int w, h;
1828 GetVirtualSize(&w, &h);
1829 GetSizer()->SetDimension( 0, 0, w, h );
1830 }
1831 #if wxUSE_CONSTRAINTS
1832 else
1833 {
1834 SatisfyConstraints(); // Find the right constraints values
1835 SetConstraintSizes(); // Recursively set the real window sizes
1836 }
1837 #endif
1838
1839 return true;
1840 }
1841
1842 #if wxUSE_CONSTRAINTS
1843
1844 // first phase of the constraints evaluation: set our own constraints
1845 bool wxWindowBase::LayoutPhase1(int *noChanges)
1846 {
1847 wxLayoutConstraints *constr = GetConstraints();
1848
1849 return !constr || constr->SatisfyConstraints(this, noChanges);
1850 }
1851
1852 // second phase: set the constraints for our children
1853 bool wxWindowBase::LayoutPhase2(int *noChanges)
1854 {
1855 *noChanges = 0;
1856
1857 // Layout children
1858 DoPhase(1);
1859
1860 // Layout grand children
1861 DoPhase(2);
1862
1863 return true;
1864 }
1865
1866 // Do a phase of evaluating child constraints
1867 bool wxWindowBase::DoPhase(int phase)
1868 {
1869 // the list containing the children for which the constraints are already
1870 // set correctly
1871 wxWindowList succeeded;
1872
1873 // the max number of iterations we loop before concluding that we can't set
1874 // the constraints
1875 static const int maxIterations = 500;
1876
1877 for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1878 {
1879 int noChanges = 0;
1880
1881 // loop over all children setting their constraints
1882 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1883 node;
1884 node = node->GetNext() )
1885 {
1886 wxWindow *child = node->GetData();
1887 if ( child->IsTopLevel() )
1888 {
1889 // top level children are not inside our client area
1890 continue;
1891 }
1892
1893 if ( !child->GetConstraints() || succeeded.Find(child) )
1894 {
1895 // this one is either already ok or nothing we can do about it
1896 continue;
1897 }
1898
1899 int tempNoChanges = 0;
1900 bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1901 : child->LayoutPhase2(&tempNoChanges);
1902 noChanges += tempNoChanges;
1903
1904 if ( success )
1905 {
1906 succeeded.Append(child);
1907 }
1908 }
1909
1910 if ( !noChanges )
1911 {
1912 // constraints are set
1913 break;
1914 }
1915 }
1916
1917 return true;
1918 }
1919
1920 void wxWindowBase::ResetConstraints()
1921 {
1922 wxLayoutConstraints *constr = GetConstraints();
1923 if ( constr )
1924 {
1925 constr->left.SetDone(false);
1926 constr->top.SetDone(false);
1927 constr->right.SetDone(false);
1928 constr->bottom.SetDone(false);
1929 constr->width.SetDone(false);
1930 constr->height.SetDone(false);
1931 constr->centreX.SetDone(false);
1932 constr->centreY.SetDone(false);
1933 }
1934
1935 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1936 while (node)
1937 {
1938 wxWindow *win = node->GetData();
1939 if ( !win->IsTopLevel() )
1940 win->ResetConstraints();
1941 node = node->GetNext();
1942 }
1943 }
1944
1945 // Need to distinguish between setting the 'fake' size for windows and sizers,
1946 // and setting the real values.
1947 void wxWindowBase::SetConstraintSizes(bool recurse)
1948 {
1949 wxLayoutConstraints *constr = GetConstraints();
1950 if ( constr && constr->AreSatisfied() )
1951 {
1952 int x = constr->left.GetValue();
1953 int y = constr->top.GetValue();
1954 int w = constr->width.GetValue();
1955 int h = constr->height.GetValue();
1956
1957 if ( (constr->width.GetRelationship() != wxAsIs ) ||
1958 (constr->height.GetRelationship() != wxAsIs) )
1959 {
1960 SetSize(x, y, w, h);
1961 }
1962 else
1963 {
1964 // If we don't want to resize this window, just move it...
1965 Move(x, y);
1966 }
1967 }
1968 else if ( constr )
1969 {
1970 wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1971 GetClassInfo()->GetClassName(),
1972 GetName().c_str());
1973 }
1974
1975 if ( recurse )
1976 {
1977 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1978 while (node)
1979 {
1980 wxWindow *win = node->GetData();
1981 if ( !win->IsTopLevel() && win->GetConstraints() )
1982 win->SetConstraintSizes();
1983 node = node->GetNext();
1984 }
1985 }
1986 }
1987
1988 // Only set the size/position of the constraint (if any)
1989 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1990 {
1991 wxLayoutConstraints *constr = GetConstraints();
1992 if ( constr )
1993 {
1994 if ( x != wxDefaultCoord )
1995 {
1996 constr->left.SetValue(x);
1997 constr->left.SetDone(true);
1998 }
1999 if ( y != wxDefaultCoord )
2000 {
2001 constr->top.SetValue(y);
2002 constr->top.SetDone(true);
2003 }
2004 if ( w != wxDefaultCoord )
2005 {
2006 constr->width.SetValue(w);
2007 constr->width.SetDone(true);
2008 }
2009 if ( h != wxDefaultCoord )
2010 {
2011 constr->height.SetValue(h);
2012 constr->height.SetDone(true);
2013 }
2014 }
2015 }
2016
2017 void wxWindowBase::MoveConstraint(int x, int y)
2018 {
2019 wxLayoutConstraints *constr = GetConstraints();
2020 if ( constr )
2021 {
2022 if ( x != wxDefaultCoord )
2023 {
2024 constr->left.SetValue(x);
2025 constr->left.SetDone(true);
2026 }
2027 if ( y != wxDefaultCoord )
2028 {
2029 constr->top.SetValue(y);
2030 constr->top.SetDone(true);
2031 }
2032 }
2033 }
2034
2035 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
2036 {
2037 wxLayoutConstraints *constr = GetConstraints();
2038 if ( constr )
2039 {
2040 *w = constr->width.GetValue();
2041 *h = constr->height.GetValue();
2042 }
2043 else
2044 GetSize(w, h);
2045 }
2046
2047 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
2048 {
2049 wxLayoutConstraints *constr = GetConstraints();
2050 if ( constr )
2051 {
2052 *w = constr->width.GetValue();
2053 *h = constr->height.GetValue();
2054 }
2055 else
2056 GetClientSize(w, h);
2057 }
2058
2059 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
2060 {
2061 wxLayoutConstraints *constr = GetConstraints();
2062 if ( constr )
2063 {
2064 *x = constr->left.GetValue();
2065 *y = constr->top.GetValue();
2066 }
2067 else
2068 GetPosition(x, y);
2069 }
2070
2071 #endif // wxUSE_CONSTRAINTS
2072
2073 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
2074 {
2075 // don't do it for the dialogs/frames - they float independently of their
2076 // parent
2077 if ( !IsTopLevel() )
2078 {
2079 wxWindow *parent = GetParent();
2080 if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
2081 {
2082 wxPoint pt(parent->GetClientAreaOrigin());
2083 x += pt.x;
2084 y += pt.y;
2085 }
2086 }
2087 }
2088
2089 // ----------------------------------------------------------------------------
2090 // do Update UI processing for child controls
2091 // ----------------------------------------------------------------------------
2092
2093 void wxWindowBase::UpdateWindowUI(long flags)
2094 {
2095 wxUpdateUIEvent event(GetId());
2096 event.SetEventObject(this);
2097
2098 if ( GetEventHandler()->ProcessEvent(event) )
2099 {
2100 DoUpdateWindowUI(event);
2101 }
2102
2103 if (flags & wxUPDATE_UI_RECURSE)
2104 {
2105 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2106 while (node)
2107 {
2108 wxWindow* child = (wxWindow*) node->GetData();
2109 child->UpdateWindowUI(flags);
2110 node = node->GetNext();
2111 }
2112 }
2113 }
2114
2115 // do the window-specific processing after processing the update event
2116 // TODO: take specific knowledge out of this function and
2117 // put in each control's base class. Unfortunately we don't
2118 // yet have base implementation files for wxCheckBox and wxRadioButton.
2119 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2120 {
2121 if ( event.GetSetEnabled() )
2122 Enable(event.GetEnabled());
2123
2124 #if wxUSE_CONTROLS
2125 if ( event.GetSetText() )
2126 {
2127 wxControl *control = wxDynamicCastThis(wxControl);
2128 if ( control )
2129 {
2130 if ( event.GetText() != control->GetLabel() )
2131 control->SetLabel(event.GetText());
2132 }
2133 }
2134 #endif // wxUSE_CONTROLS
2135
2136 if ( event.GetSetChecked() )
2137 {
2138 #if wxUSE_CHECKBOX
2139 wxCheckBox *checkbox = wxDynamicCastThis(wxCheckBox);
2140 if ( checkbox )
2141 {
2142 checkbox->SetValue(event.GetChecked());
2143 }
2144 #endif // wxUSE_CHECKBOX
2145
2146 #if wxUSE_RADIOBTN
2147 wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);
2148 if ( radiobtn )
2149 {
2150 radiobtn->SetValue(event.GetChecked());
2151 }
2152 #endif // wxUSE_RADIOBTN
2153 }
2154 }
2155
2156 #if 0
2157 // call internal idle recursively
2158 // may be obsolete (wait until OnIdle scheme stabilises)
2159 void wxWindowBase::ProcessInternalIdle()
2160 {
2161 OnInternalIdle();
2162
2163 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2164 while (node)
2165 {
2166 wxWindow *child = node->GetData();
2167 child->ProcessInternalIdle();
2168 node = node->GetNext();
2169 }
2170 }
2171 #endif
2172
2173 // ----------------------------------------------------------------------------
2174 // dialog units translations
2175 // ----------------------------------------------------------------------------
2176
2177 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2178 {
2179 int charWidth = GetCharWidth();
2180 int charHeight = GetCharHeight();
2181 wxPoint pt2 = wxDefaultPosition;
2182 if (pt.x != wxDefaultCoord)
2183 pt2.x = (int) ((pt.x * 4) / charWidth);
2184 if (pt.y != wxDefaultCoord)
2185 pt2.y = (int) ((pt.y * 8) / charHeight);
2186
2187 return pt2;
2188 }
2189
2190 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2191 {
2192 int charWidth = GetCharWidth();
2193 int charHeight = GetCharHeight();
2194 wxPoint pt2 = wxDefaultPosition;
2195 if (pt.x != wxDefaultCoord)
2196 pt2.x = (int) ((pt.x * charWidth) / 4);
2197 if (pt.y != wxDefaultCoord)
2198 pt2.y = (int) ((pt.y * charHeight) / 8);
2199
2200 return pt2;
2201 }
2202
2203 // ----------------------------------------------------------------------------
2204 // event handlers
2205 // ----------------------------------------------------------------------------
2206
2207 // propagate the colour change event to the subwindows
2208 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2209 {
2210 wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2211 while ( node )
2212 {
2213 // Only propagate to non-top-level windows
2214 wxWindow *win = node->GetData();
2215 if ( !win->IsTopLevel() )
2216 {
2217 wxSysColourChangedEvent event2;
2218 event.SetEventObject(win);
2219 win->GetEventHandler()->ProcessEvent(event2);
2220 }
2221
2222 node = node->GetNext();
2223 }
2224
2225 Refresh();
2226 }
2227
2228 // the default action is to populate dialog with data when it's created,
2229 // and nudge the UI into displaying itself correctly in case
2230 // we've turned the wxUpdateUIEvents frequency down low.
2231 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2232 {
2233 TransferDataToWindow();
2234
2235 // Update the UI at this point
2236 UpdateWindowUI(wxUPDATE_UI_RECURSE);
2237 }
2238
2239 // process Ctrl-Alt-mclick
2240 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2241 {
2242 #if wxUSE_MSGDLG
2243 if ( event.ControlDown() && event.AltDown() )
2244 {
2245 // don't translate these strings
2246 wxString port;
2247
2248 #ifdef __WXUNIVERSAL__
2249 port = _T("Univ/");
2250 #endif // __WXUNIVERSAL__
2251
2252 switch ( wxGetOsVersion() )
2253 {
2254 case wxMOTIF_X: port += _T("Motif"); break;
2255 case wxMAC:
2256 case wxMAC_DARWIN: port += _T("Mac"); break;
2257 case wxBEOS: port += _T("BeOS"); break;
2258 case wxGTK:
2259 case wxGTK_WIN32:
2260 case wxGTK_OS2:
2261 case wxGTK_BEOS: port += _T("GTK"); break;
2262 case wxWINDOWS:
2263 case wxPENWINDOWS:
2264 case wxWINDOWS_NT:
2265 case wxWIN32S:
2266 case wxWIN95:
2267 case wxWIN386: port += _T("MS Windows"); break;
2268 case wxMGL_UNIX:
2269 case wxMGL_X:
2270 case wxMGL_WIN32:
2271 case wxMGL_OS2: port += _T("MGL"); break;
2272 case wxWINDOWS_OS2:
2273 case wxOS2_PM: port += _T("OS/2"); break;
2274 default: port += _T("unknown"); break;
2275 }
2276
2277 wxMessageBox(wxString::Format(
2278 _T(
2279 " wxWidgets Library (%s port)\nVersion %u.%u.%u%s%s, compiled at %s %s\n Copyright (c) 1995-2005 wxWidgets team"
2280 ),
2281 port.c_str(),
2282 wxMAJOR_VERSION,
2283 wxMINOR_VERSION,
2284 wxRELEASE_NUMBER,
2285 #if wxUSE_UNICODE
2286 L" (Unicode)",
2287 #else
2288 "",
2289 #endif
2290 #ifdef __WXDEBUG__
2291 _T(" Debug build"),
2292 #else
2293 wxEmptyString,
2294 #endif
2295 __TDATE__,
2296 __TTIME__
2297 ),
2298 _T("wxWidgets information"),
2299 wxICON_INFORMATION | wxOK,
2300 (wxWindow *)this);
2301 }
2302 else
2303 #endif // wxUSE_MSGDLG
2304 {
2305 event.Skip();
2306 }
2307 }
2308
2309 // ----------------------------------------------------------------------------
2310 // accessibility
2311 // ----------------------------------------------------------------------------
2312
2313 #if wxUSE_ACCESSIBILITY
2314 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2315 {
2316 if (m_accessible && (accessible != m_accessible))
2317 delete m_accessible;
2318 m_accessible = accessible;
2319 if (m_accessible)
2320 m_accessible->SetWindow((wxWindow*) this);
2321 }
2322
2323 // Returns the accessible object, creating if necessary.
2324 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2325 {
2326 if (!m_accessible)
2327 m_accessible = CreateAccessible();
2328 return m_accessible;
2329 }
2330
2331 // Override to create a specific accessible object.
2332 wxAccessible* wxWindowBase::CreateAccessible()
2333 {
2334 return new wxWindowAccessible((wxWindow*) this);
2335 }
2336
2337 #endif
2338
2339 // ----------------------------------------------------------------------------
2340 // list classes implementation
2341 // ----------------------------------------------------------------------------
2342
2343 #if wxUSE_STL
2344
2345 #include <wx/listimpl.cpp>
2346 WX_DEFINE_LIST(wxWindowList);
2347
2348 #else
2349
2350 void wxWindowListNode::DeleteData()
2351 {
2352 delete (wxWindow *)GetData();
2353 }
2354
2355 #endif
2356
2357 // ----------------------------------------------------------------------------
2358 // borders
2359 // ----------------------------------------------------------------------------
2360
2361 wxBorder wxWindowBase::GetBorder(long flags) const
2362 {
2363 wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2364 if ( border == wxBORDER_DEFAULT )
2365 {
2366 border = GetDefaultBorder();
2367 }
2368
2369 return border;
2370 }
2371
2372 wxBorder wxWindowBase::GetDefaultBorder() const
2373 {
2374 return wxBORDER_NONE;
2375 }
2376
2377 // ----------------------------------------------------------------------------
2378 // hit testing
2379 // ----------------------------------------------------------------------------
2380
2381 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2382 {
2383 // here we just check if the point is inside the window or not
2384
2385 // check the top and left border first
2386 bool outside = x < 0 || y < 0;
2387 if ( !outside )
2388 {
2389 // check the right and bottom borders too
2390 wxSize size = GetSize();
2391 outside = x >= size.x || y >= size.y;
2392 }
2393
2394 return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2395 }
2396
2397 // ----------------------------------------------------------------------------
2398 // mouse capture
2399 // ----------------------------------------------------------------------------
2400
2401 struct WXDLLEXPORT wxWindowNext
2402 {
2403 wxWindow *win;
2404 wxWindowNext *next;
2405 } *wxWindowBase::ms_winCaptureNext = NULL;
2406
2407 void wxWindowBase::CaptureMouse()
2408 {
2409 wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), this);
2410
2411 wxWindow *winOld = GetCapture();
2412 if ( winOld )
2413 {
2414 ((wxWindowBase*) winOld)->DoReleaseMouse();
2415
2416 // save it on stack
2417 wxWindowNext *item = new wxWindowNext;
2418 item->win = winOld;
2419 item->next = ms_winCaptureNext;
2420 ms_winCaptureNext = item;
2421 }
2422 //else: no mouse capture to save
2423
2424 DoCaptureMouse();
2425 }
2426
2427 void wxWindowBase::ReleaseMouse()
2428 {
2429 wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), this);
2430
2431 wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2432
2433 DoReleaseMouse();
2434
2435 if ( ms_winCaptureNext )
2436 {
2437 ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2438
2439 wxWindowNext *item = ms_winCaptureNext;
2440 ms_winCaptureNext = item->next;
2441 delete item;
2442 }
2443 //else: stack is empty, no previous capture
2444
2445 wxLogTrace(_T("mousecapture"),
2446 (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2447 GetCapture());
2448 }
2449
2450 #if wxUSE_HOTKEY
2451
2452 bool
2453 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2454 int WXUNUSED(modifiers),
2455 int WXUNUSED(keycode))
2456 {
2457 // not implemented
2458 return false;
2459 }
2460
2461 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2462 {
2463 // not implemented
2464 return false;
2465 }
2466
2467 #endif // wxUSE_HOTKEY
2468
2469 void wxWindowBase::SendDestroyEvent()
2470 {
2471 wxWindowDestroyEvent event;
2472 event.SetEventObject(this);
2473 event.SetId(GetId());
2474 GetEventHandler()->ProcessEvent(event);
2475 }
2476
2477 // ----------------------------------------------------------------------------
2478 // event processing
2479 // ----------------------------------------------------------------------------
2480
2481 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2482 {
2483 #if wxUSE_VALIDATORS
2484 // Can only use the validator of the window which
2485 // is receiving the event
2486 if ( event.GetEventObject() == this )
2487 {
2488 wxValidator *validator = GetValidator();
2489 if ( validator && validator->ProcessEvent(event) )
2490 {
2491 return true;
2492 }
2493 }
2494 #endif // wxUSE_VALIDATORS
2495
2496 return false;
2497 }
2498
2499 bool wxWindowBase::TryParent(wxEvent& event)
2500 {
2501 // carry on up the parent-child hierarchy if the propgation count hasn't
2502 // reached zero yet
2503 if ( event.ShouldPropagate() )
2504 {
2505 // honour the requests to stop propagation at this window: this is
2506 // used by the dialogs, for example, to prevent processing the events
2507 // from the dialog controls in the parent frame which rarely, if ever,
2508 // makes sense
2509 if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2510 {
2511 wxWindow *parent = GetParent();
2512 if ( parent && !parent->IsBeingDeleted() )
2513 {
2514 wxPropagateOnce propagateOnce(event);
2515
2516 return parent->GetEventHandler()->ProcessEvent(event);
2517 }
2518 }
2519 }
2520
2521 return wxEvtHandler::TryParent(event);
2522 }
2523
2524 // ----------------------------------------------------------------------------
2525 // keyboard navigation
2526 // ----------------------------------------------------------------------------
2527
2528 // Navigates in the specified direction.
2529 bool wxWindowBase::Navigate(int flags)
2530 {
2531 wxNavigationKeyEvent eventNav;
2532 eventNav.SetFlags(flags);
2533 eventNav.SetEventObject(this);
2534 if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2535 {
2536 return true;
2537 }
2538 return false;
2539 }
2540
2541 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2542 {
2543 // check that we're not a top level window
2544 wxCHECK_RET( GetParent(),
2545 _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2546
2547 // detect the special case when we have nothing to do anyhow and when the
2548 // code below wouldn't work
2549 if ( win == this )
2550 return;
2551
2552 // find the target window in the siblings list
2553 wxWindowList& siblings = GetParent()->GetChildren();
2554 wxWindowList::compatibility_iterator i = siblings.Find(win);
2555 wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2556
2557 // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2558 // can't just move the node around
2559 wxWindow *self = (wxWindow *)this;
2560 siblings.DeleteObject(self);
2561 if ( move == MoveAfter )
2562 {
2563 i = i->GetNext();
2564 }
2565
2566 if ( i )
2567 {
2568 siblings.Insert(i, self);
2569 }
2570 else // MoveAfter and win was the last sibling
2571 {
2572 siblings.Append(self);
2573 }
2574 }
2575
2576 // ----------------------------------------------------------------------------
2577 // focus handling
2578 // ----------------------------------------------------------------------------
2579
2580 /*static*/ wxWindow* wxWindowBase::FindFocus()
2581 {
2582 wxWindowBase *win = DoFindFocus();
2583 return win ? win->GetMainWindowOfCompositeControl() : NULL;
2584 }
2585
2586 // ----------------------------------------------------------------------------
2587 // global functions
2588 // ----------------------------------------------------------------------------
2589
2590 wxWindow* wxGetTopLevelParent(wxWindow *win)
2591 {
2592 while ( win && !win->IsTopLevel() )
2593 win = win->GetParent();
2594
2595 return win;
2596 }
2597
2598 #if wxUSE_ACCESSIBILITY
2599 // ----------------------------------------------------------------------------
2600 // accessible object for windows
2601 // ----------------------------------------------------------------------------
2602
2603 // Can return either a child object, or an integer
2604 // representing the child element, starting from 1.
2605 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2606 {
2607 wxASSERT( GetWindow() != NULL );
2608 if (!GetWindow())
2609 return wxACC_FAIL;
2610
2611 return wxACC_NOT_IMPLEMENTED;
2612 }
2613
2614 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2615 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2616 {
2617 wxASSERT( GetWindow() != NULL );
2618 if (!GetWindow())
2619 return wxACC_FAIL;
2620
2621 wxWindow* win = NULL;
2622 if (elementId == 0)
2623 {
2624 win = GetWindow();
2625 }
2626 else
2627 {
2628 if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2629 {
2630 win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2631 }
2632 else
2633 return wxACC_FAIL;
2634 }
2635 if (win)
2636 {
2637 rect = win->GetRect();
2638 if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2639 rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2640 return wxACC_OK;
2641 }
2642
2643 return wxACC_NOT_IMPLEMENTED;
2644 }
2645
2646 // Navigates from fromId to toId/toObject.
2647 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2648 int* WXUNUSED(toId), wxAccessible** toObject)
2649 {
2650 wxASSERT( GetWindow() != NULL );
2651 if (!GetWindow())
2652 return wxACC_FAIL;
2653
2654 switch (navDir)
2655 {
2656 case wxNAVDIR_FIRSTCHILD:
2657 {
2658 if (GetWindow()->GetChildren().GetCount() == 0)
2659 return wxACC_FALSE;
2660 wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2661 *toObject = childWindow->GetOrCreateAccessible();
2662
2663 return wxACC_OK;
2664 }
2665 case wxNAVDIR_LASTCHILD:
2666 {
2667 if (GetWindow()->GetChildren().GetCount() == 0)
2668 return wxACC_FALSE;
2669 wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2670 *toObject = childWindow->GetOrCreateAccessible();
2671
2672 return wxACC_OK;
2673 }
2674 case wxNAVDIR_RIGHT:
2675 case wxNAVDIR_DOWN:
2676 case wxNAVDIR_NEXT:
2677 {
2678 wxWindowList::compatibility_iterator node =
2679 wxWindowList::compatibility_iterator();
2680 if (fromId == 0)
2681 {
2682 // Can't navigate to sibling of this window
2683 // if we're a top-level window.
2684 if (!GetWindow()->GetParent())
2685 return wxACC_NOT_IMPLEMENTED;
2686
2687 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2688 }
2689 else
2690 {
2691 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2692 node = GetWindow()->GetChildren().Item(fromId-1);
2693 }
2694
2695 if (node && node->GetNext())
2696 {
2697 wxWindow* nextWindow = node->GetNext()->GetData();
2698 *toObject = nextWindow->GetOrCreateAccessible();
2699 return wxACC_OK;
2700 }
2701 else
2702 return wxACC_FALSE;
2703 }
2704 case wxNAVDIR_LEFT:
2705 case wxNAVDIR_UP:
2706 case wxNAVDIR_PREVIOUS:
2707 {
2708 wxWindowList::compatibility_iterator node =
2709 wxWindowList::compatibility_iterator();
2710 if (fromId == 0)
2711 {
2712 // Can't navigate to sibling of this window
2713 // if we're a top-level window.
2714 if (!GetWindow()->GetParent())
2715 return wxACC_NOT_IMPLEMENTED;
2716
2717 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2718 }
2719 else
2720 {
2721 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2722 node = GetWindow()->GetChildren().Item(fromId-1);
2723 }
2724
2725 if (node && node->GetPrevious())
2726 {
2727 wxWindow* previousWindow = node->GetPrevious()->GetData();
2728 *toObject = previousWindow->GetOrCreateAccessible();
2729 return wxACC_OK;
2730 }
2731 else
2732 return wxACC_FALSE;
2733 }
2734 }
2735
2736 return wxACC_NOT_IMPLEMENTED;
2737 }
2738
2739 // Gets the name of the specified object.
2740 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2741 {
2742 wxASSERT( GetWindow() != NULL );
2743 if (!GetWindow())
2744 return wxACC_FAIL;
2745
2746 wxString title;
2747
2748 // If a child, leave wxWidgets to call the function on the actual
2749 // child object.
2750 if (childId > 0)
2751 return wxACC_NOT_IMPLEMENTED;
2752
2753 // This will eventually be replaced by specialised
2754 // accessible classes, one for each kind of wxWidgets
2755 // control or window.
2756 #if wxUSE_BUTTON
2757 if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2758 title = ((wxButton*) GetWindow())->GetLabel();
2759 else
2760 #endif
2761 title = GetWindow()->GetName();
2762
2763 if (!title.empty())
2764 {
2765 *name = title;
2766 return wxACC_OK;
2767 }
2768 else
2769 return wxACC_NOT_IMPLEMENTED;
2770 }
2771
2772 // Gets the number of children.
2773 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2774 {
2775 wxASSERT( GetWindow() != NULL );
2776 if (!GetWindow())
2777 return wxACC_FAIL;
2778
2779 *childId = (int) GetWindow()->GetChildren().GetCount();
2780 return wxACC_OK;
2781 }
2782
2783 // Gets the specified child (starting from 1).
2784 // If *child is NULL and return value is wxACC_OK,
2785 // this means that the child is a simple element and
2786 // not an accessible object.
2787 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2788 {
2789 wxASSERT( GetWindow() != NULL );
2790 if (!GetWindow())
2791 return wxACC_FAIL;
2792
2793 if (childId == 0)
2794 {
2795 *child = this;
2796 return wxACC_OK;
2797 }
2798
2799 if (childId > (int) GetWindow()->GetChildren().GetCount())
2800 return wxACC_FAIL;
2801
2802 wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2803 *child = childWindow->GetOrCreateAccessible();
2804 if (*child)
2805 return wxACC_OK;
2806 else
2807 return wxACC_FAIL;
2808 }
2809
2810 // Gets the parent, or NULL.
2811 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2812 {
2813 wxASSERT( GetWindow() != NULL );
2814 if (!GetWindow())
2815 return wxACC_FAIL;
2816
2817 wxWindow* parentWindow = GetWindow()->GetParent();
2818 if (!parentWindow)
2819 {
2820 *parent = NULL;
2821 return wxACC_OK;
2822 }
2823 else
2824 {
2825 *parent = parentWindow->GetOrCreateAccessible();
2826 if (*parent)
2827 return wxACC_OK;
2828 else
2829 return wxACC_FAIL;
2830 }
2831 }
2832
2833 // Performs the default action. childId is 0 (the action for this object)
2834 // or > 0 (the action for a child).
2835 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2836 // window (e.g. an edit control).
2837 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2838 {
2839 wxASSERT( GetWindow() != NULL );
2840 if (!GetWindow())
2841 return wxACC_FAIL;
2842
2843 return wxACC_NOT_IMPLEMENTED;
2844 }
2845
2846 // Gets the default action for this object (0) or > 0 (the action for a child).
2847 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2848 // string if there is no action.
2849 // The retrieved string describes the action that is performed on an object,
2850 // not what the object does as a result. For example, a toolbar button that prints
2851 // a document has a default action of "Press" rather than "Prints the current document."
2852 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2853 {
2854 wxASSERT( GetWindow() != NULL );
2855 if (!GetWindow())
2856 return wxACC_FAIL;
2857
2858 return wxACC_NOT_IMPLEMENTED;
2859 }
2860
2861 // Returns the description for this object or a child.
2862 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2863 {
2864 wxASSERT( GetWindow() != NULL );
2865 if (!GetWindow())
2866 return wxACC_FAIL;
2867
2868 wxString ht(GetWindow()->GetHelpText());
2869 if (!ht.empty())
2870 {
2871 *description = ht;
2872 return wxACC_OK;
2873 }
2874 return wxACC_NOT_IMPLEMENTED;
2875 }
2876
2877 // Returns help text for this object or a child, similar to tooltip text.
2878 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2879 {
2880 wxASSERT( GetWindow() != NULL );
2881 if (!GetWindow())
2882 return wxACC_FAIL;
2883
2884 wxString ht(GetWindow()->GetHelpText());
2885 if (!ht.empty())
2886 {
2887 *helpText = ht;
2888 return wxACC_OK;
2889 }
2890 return wxACC_NOT_IMPLEMENTED;
2891 }
2892
2893 // Returns the keyboard shortcut for this object or child.
2894 // Return e.g. ALT+K
2895 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2896 {
2897 wxASSERT( GetWindow() != NULL );
2898 if (!GetWindow())
2899 return wxACC_FAIL;
2900
2901 return wxACC_NOT_IMPLEMENTED;
2902 }
2903
2904 // Returns a role constant.
2905 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2906 {
2907 wxASSERT( GetWindow() != NULL );
2908 if (!GetWindow())
2909 return wxACC_FAIL;
2910
2911 // If a child, leave wxWidgets to call the function on the actual
2912 // child object.
2913 if (childId > 0)
2914 return wxACC_NOT_IMPLEMENTED;
2915
2916 if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2917 return wxACC_NOT_IMPLEMENTED;
2918 #if wxUSE_STATUSBAR
2919 if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2920 return wxACC_NOT_IMPLEMENTED;
2921 #endif
2922 #if wxUSE_TOOLBAR
2923 if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2924 return wxACC_NOT_IMPLEMENTED;
2925 #endif
2926
2927 //*role = wxROLE_SYSTEM_CLIENT;
2928 *role = wxROLE_SYSTEM_CLIENT;
2929 return wxACC_OK;
2930
2931 #if 0
2932 return wxACC_NOT_IMPLEMENTED;
2933 #endif
2934 }
2935
2936 // Returns a state constant.
2937 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2938 {
2939 wxASSERT( GetWindow() != NULL );
2940 if (!GetWindow())
2941 return wxACC_FAIL;
2942
2943 // If a child, leave wxWidgets to call the function on the actual
2944 // child object.
2945 if (childId > 0)
2946 return wxACC_NOT_IMPLEMENTED;
2947
2948 if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2949 return wxACC_NOT_IMPLEMENTED;
2950
2951 #if wxUSE_STATUSBAR
2952 if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2953 return wxACC_NOT_IMPLEMENTED;
2954 #endif
2955 #if wxUSE_TOOLBAR
2956 if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2957 return wxACC_NOT_IMPLEMENTED;
2958 #endif
2959
2960 *state = 0;
2961 return wxACC_OK;
2962
2963 #if 0
2964 return wxACC_NOT_IMPLEMENTED;
2965 #endif
2966 }
2967
2968 // Returns a localized string representing the value for the object
2969 // or child.
2970 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2971 {
2972 wxASSERT( GetWindow() != NULL );
2973 if (!GetWindow())
2974 return wxACC_FAIL;
2975
2976 return wxACC_NOT_IMPLEMENTED;
2977 }
2978
2979 // Selects the object or child.
2980 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2981 {
2982 wxASSERT( GetWindow() != NULL );
2983 if (!GetWindow())
2984 return wxACC_FAIL;
2985
2986 return wxACC_NOT_IMPLEMENTED;
2987 }
2988
2989 // Gets the window with the keyboard focus.
2990 // If childId is 0 and child is NULL, no object in
2991 // this subhierarchy has the focus.
2992 // If this object has the focus, child should be 'this'.
2993 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2994 {
2995 wxASSERT( GetWindow() != NULL );
2996 if (!GetWindow())
2997 return wxACC_FAIL;
2998
2999 return wxACC_NOT_IMPLEMENTED;
3000 }
3001
3002 // Gets a variant representing the selected children
3003 // of this object.
3004 // Acceptable values:
3005 // - a null variant (IsNull() returns true)
3006 // - a list variant (GetType() == wxT("list")
3007 // - an integer representing the selected child element,
3008 // or 0 if this object is selected (GetType() == wxT("long")
3009 // - a "void*" pointer to a wxAccessible child object
3010 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
3011 {
3012 wxASSERT( GetWindow() != NULL );
3013 if (!GetWindow())
3014 return wxACC_FAIL;
3015
3016 return wxACC_NOT_IMPLEMENTED;
3017 }
3018
3019 #endif // wxUSE_ACCESSIBILITY
wxWidgets (Impactor)