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