src/common/wincmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/window.cpp
   3 // Purpose:     common (to all ports) wxWindow functions
   4 // Author:      Julian Smart, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     13/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/string.h"
  29     #include "wx/log.h"
  30     #include "wx/intl.h"
  31     #include "wx/frame.h"
  32     #include "wx/window.h"
  33     #include "wx/control.h"
  34     #include "wx/checkbox.h"
  35     #include "wx/radiobut.h"
  36     #include "wx/statbox.h"
  37     #include "wx/textctrl.h"
  38     #include "wx/settings.h"
  39     #include "wx/dialog.h"
  40     #include "wx/msgdlg.h"
  41     #include "wx/statusbr.h"
  42     #include "wx/toolbar.h"
  43     #include "wx/dcclient.h"
  44     #include "wx/scrolbar.h"
  45     #include "wx/layout.h"
  46     #include "wx/sizer.h"
  47 #endif //WX_PRECOMP
  48
  49 #if wxUSE_DRAG_AND_DROP
  50     #include "wx/dnd.h"
  51 #endif // wxUSE_DRAG_AND_DROP
  52
  53 #if wxUSE_ACCESSIBILITY
  54     #include "wx/access.h"
  55 #endif
  56
  57 #if wxUSE_HELP
  58     #include "wx/cshelp.h"
  59 #endif // wxUSE_HELP
  60
  61 #if wxUSE_TOOLTIPS
  62     #include "wx/tooltip.h"
  63 #endif // wxUSE_TOOLTIPS
  64
  65 #if wxUSE_CARET
  66     #include "wx/caret.h"
  67 #endif // wxUSE_CARET
  68
  69 #if wxUSE_SYSTEM_OPTIONS
  70     #include "wx/sysopt.h"
  71 #endif
  72
  73 // For reporting compile- and runtime version of GTK+ in the ctrl+alt+mclick dialog.
  74 // The gtk includes don't pull any other headers in, at least not on my system - MR
  75 #ifdef __WXGTK__
  76     #ifdef __WXGTK20__
  77         #include <gtk/gtkversion.h>
  78     #else
  79         #include <gtk/gtkfeatures.h>
  80     #endif
  81     extern const unsigned int gtk_major_version;
  82     extern const unsigned int gtk_minor_version;
  83     extern const unsigned int gtk_micro_version;
  84 #endif
  85
  86 #include "wx/platinfo.h"
  87
  88 // Windows List
  89 WXDLLIMPEXP_DATA_CORE(wxWindowList) wxTopLevelWindows;
  90
  91 // ----------------------------------------------------------------------------
  92 // static data
  93 // ----------------------------------------------------------------------------
  94
  95 #if defined(__WXPALMOS__)
  96 int wxWindowBase::ms_lastControlId = 32767;
  97 #elif defined(__WXPM__)
  98 int wxWindowBase::ms_lastControlId = 2000;
  99 #else
 100 int wxWindowBase::ms_lastControlId = -200;
 101 #endif
 102
 103 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
 104
 105 // ----------------------------------------------------------------------------
 106 // event table
 107 // ----------------------------------------------------------------------------
 108
 109 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
 110     EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
 111     EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
 112     EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
 113
 114 #if wxUSE_HELP
 115     EVT_HELP(wxID_ANY, wxWindowBase::OnHelp)
 116 #endif // wxUSE_HELP
 117
 118 END_EVENT_TABLE()
 119
 120 // ============================================================================
 121 // implementation of the common functionality of the wxWindow class
 122 // ============================================================================
 123
 124 // ----------------------------------------------------------------------------
 125 // initialization
 126 // ----------------------------------------------------------------------------
 127
 128 // the default initialization
 129 wxWindowBase::wxWindowBase()
 130 {
 131     // no window yet, no parent nor children
 132     m_parent = (wxWindow *)NULL;
 133     m_windowId = wxID_ANY;
 134
 135     // no constraints on the minimal window size
 136     m_minWidth =
 137     m_maxWidth = wxDefaultCoord;
 138     m_minHeight =
 139     m_maxHeight = wxDefaultCoord;
 140
 141     // invalidiated cache value
 142     m_bestSizeCache = wxDefaultSize;
 143
 144     // window are created enabled and visible by default
 145     m_isShown =
 146     m_isEnabled = true;
 147
 148     // the default event handler is just this window
 149     m_eventHandler = this;
 150
 151 #if wxUSE_VALIDATORS
 152     // no validator
 153     m_windowValidator = (wxValidator *) NULL;
 154 #endif // wxUSE_VALIDATORS
 155
 156     // the colours/fonts are default for now, so leave m_font,
 157     // m_backgroundColour and m_foregroundColour uninitialized and set those
 158     m_hasBgCol =
 159     m_hasFgCol =
 160     m_hasFont = false;
 161     m_inheritBgCol =
 162     m_inheritFgCol =
 163     m_inheritFont = false;
 164
 165     // no style bits
 166     m_exStyle =
 167     m_windowStyle = 0;
 168
 169     m_backgroundStyle = wxBG_STYLE_SYSTEM;
 170
 171 #if wxUSE_CONSTRAINTS
 172     // no constraints whatsoever
 173     m_constraints = (wxLayoutConstraints *) NULL;
 174     m_constraintsInvolvedIn = (wxWindowList *) NULL;
 175 #endif // wxUSE_CONSTRAINTS
 176
 177     m_windowSizer = (wxSizer *) NULL;
 178     m_containingSizer = (wxSizer *) NULL;
 179     m_autoLayout = false;
 180
 181 #if wxUSE_DRAG_AND_DROP
 182     m_dropTarget = (wxDropTarget *)NULL;
 183 #endif // wxUSE_DRAG_AND_DROP
 184
 185 #if wxUSE_TOOLTIPS
 186     m_tooltip = (wxToolTip *)NULL;
 187 #endif // wxUSE_TOOLTIPS
 188
 189 #if wxUSE_CARET
 190     m_caret = (wxCaret *)NULL;
 191 #endif // wxUSE_CARET
 192
 193 #if wxUSE_PALETTE
 194     m_hasCustomPalette = false;
 195 #endif // wxUSE_PALETTE
 196
 197 #if wxUSE_ACCESSIBILITY
 198     m_accessible = NULL;
 199 #endif
 200
 201     m_virtualSize = wxDefaultSize;
 202
 203     m_minVirtualWidth =
 204     m_maxVirtualWidth = wxDefaultCoord;
 205     m_minVirtualHeight =
 206     m_maxVirtualHeight = wxDefaultCoord;
 207
 208     m_windowVariant = wxWINDOW_VARIANT_NORMAL;
 209 #if wxUSE_SYSTEM_OPTIONS
 210     if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) )
 211     {
 212        m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ;
 213     }
 214 #endif
 215
 216     // Whether we're using the current theme for this window (wxGTK only for now)
 217     m_themeEnabled = false;
 218
 219     // VZ: this one shouldn't exist...
 220     m_isBeingDeleted = false;
 221 }
 222
 223 // common part of window creation process
 224 bool wxWindowBase::CreateBase(wxWindowBase *parent,
 225                               wxWindowID id,
 226                               const wxPoint& WXUNUSED(pos),
 227                               const wxSize& WXUNUSED(size),
 228                               long style,
 229                               const wxValidator& wxVALIDATOR_PARAM(validator),
 230                               const wxString& name)
 231 {
 232 #if wxUSE_STATBOX
 233     // wxGTK doesn't allow to create controls with static box as the parent so
 234     // this will result in a crash when the program is ported to wxGTK so warn
 235     // the user about it
 236
 237     // if you get this assert, the correct solution is to create the controls
 238     // as siblings of the static box
 239     wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
 240                   _T("wxStaticBox can't be used as a window parent!") );
 241 #endif // wxUSE_STATBOX
 242
 243     // ids are limited to 16 bits under MSW so if you care about portability,
 244     // it's not a good idea to use ids out of this range (and negative ids are
 245     // reserved for wxWidgets own usage)
 246     wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
 247                   _T("invalid id value") );
 248
 249     // generate a new id if the user doesn't care about it
 250     m_windowId = id == wxID_ANY ? NewControlId() : id;
 251
 252     SetName(name);
 253     SetWindowStyleFlag(style);
 254     SetParent(parent);
 255
 256 #if wxUSE_VALIDATORS
 257     SetValidator(validator);
 258 #endif // wxUSE_VALIDATORS
 259
 260     // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
 261     // have it too - like this it's possible to set it only in the top level
 262     // dialog/frame and all children will inherit it by defult
 263     if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
 264     {
 265         SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
 266     }
 267
 268     return true;
 269 }
 270
 271 // ----------------------------------------------------------------------------
 272 // destruction
 273 // ----------------------------------------------------------------------------
 274
 275 // common clean up
 276 wxWindowBase::~wxWindowBase()
 277 {
 278     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 279
 280     // FIXME if these 2 cases result from programming errors in the user code
 281     //       we should probably assert here instead of silently fixing them
 282
 283     // Just in case the window has been Closed, but we're then deleting
 284     // immediately: don't leave dangling pointers.
 285     wxPendingDelete.DeleteObject(this);
 286
 287     // Just in case we've loaded a top-level window via LoadNativeDialog but
 288     // we weren't a dialog class
 289     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 290
 291     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 292
 293     // reset the dangling pointer our parent window may keep to us
 294     if ( m_parent )
 295     {
 296         m_parent->RemoveChild(this);
 297     }
 298
 299 #if wxUSE_CARET
 300     delete m_caret;
 301 #endif // wxUSE_CARET
 302
 303 #if wxUSE_VALIDATORS
 304     delete m_windowValidator;
 305 #endif // wxUSE_VALIDATORS
 306
 307 #if wxUSE_CONSTRAINTS
 308     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
 309     // at deleted windows as they delete themselves.
 310     DeleteRelatedConstraints();
 311
 312     if ( m_constraints )
 313     {
 314         // This removes any dangling pointers to this window in other windows'
 315         // constraintsInvolvedIn lists.
 316         UnsetConstraints(m_constraints);
 317         delete m_constraints;
 318         m_constraints = NULL;
 319     }
 320 #endif // wxUSE_CONSTRAINTS
 321
 322     if ( m_containingSizer )
 323         m_containingSizer->Detach( (wxWindow*)this );
 324
 325     delete m_windowSizer;
 326
 327 #if wxUSE_DRAG_AND_DROP
 328     delete m_dropTarget;
 329 #endif // wxUSE_DRAG_AND_DROP
 330
 331 #if wxUSE_TOOLTIPS
 332     delete m_tooltip;
 333 #endif // wxUSE_TOOLTIPS
 334
 335 #if wxUSE_ACCESSIBILITY
 336     delete m_accessible;
 337 #endif
 338 }
 339
 340 bool wxWindowBase::Destroy()
 341 {
 342     delete this;
 343
 344     return true;
 345 }
 346
 347 bool wxWindowBase::Close(bool force)
 348 {
 349     wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
 350     event.SetEventObject(this);
 351     event.SetCanVeto(!force);
 352
 353     // return false if window wasn't closed because the application vetoed the
 354     // close event
 355     return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
 356 }
 357
 358 bool wxWindowBase::DestroyChildren()
 359 {
 360     wxWindowList::compatibility_iterator node;
 361     for ( ;; )
 362     {
 363         // we iterate until the list becomes empty
 364         node = GetChildren().GetFirst();
 365         if ( !node )
 366             break;
 367
 368         wxWindow *child = node->GetData();
 369
 370         // note that we really want to call delete and not ->Destroy() here
 371         // because we want to delete the child immediately, before we are
 372         // deleted, and delayed deletion would result in problems as our (top
 373         // level) child could outlive its parent
 374         delete child;
 375
 376         wxASSERT_MSG( !GetChildren().Find(child),
 377                       wxT("child didn't remove itself using RemoveChild()") );
 378     }
 379
 380     return true;
 381 }
 382
 383 // ----------------------------------------------------------------------------
 384 // size/position related methods
 385 // ----------------------------------------------------------------------------
 386
 387 // centre the window with respect to its parent in either (or both) directions
 388 void wxWindowBase::DoCentre(int dir)
 389 {
 390     wxCHECK_RET( !(dir & wxCENTRE_ON_SCREEN) && GetParent(),
 391                  _T("this method only implements centering child windows") );
 392
 393     SetSize(GetRect().CentreIn(GetParent()->GetClientSize(), dir));
 394 }
 395
 396 // fits the window around the children
 397 void wxWindowBase::Fit()
 398 {
 399     if ( !GetChildren().empty() )
 400     {
 401         SetSize(GetBestSize());
 402     }
 403     //else: do nothing if we have no children
 404 }
 405
 406 // fits virtual size (ie. scrolled area etc.) around children
 407 void wxWindowBase::FitInside()
 408 {
 409     if ( GetChildren().GetCount() > 0 )
 410     {
 411         SetVirtualSize( GetBestVirtualSize() );
 412     }
 413 }
 414
 415 // On Mac, scrollbars are explicitly children.
 416 #ifdef __WXMAC__
 417 static bool wxHasRealChildren(const wxWindowBase* win)
 418 {
 419     int realChildCount = 0;
 420
 421     for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
 422           node;
 423           node = node->GetNext() )
 424     {
 425         wxWindow *win = node->GetData();
 426         if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
 427             realChildCount ++;
 428     }
 429     return (realChildCount > 0);
 430 }
 431 #endif
 432
 433 void wxWindowBase::InvalidateBestSize()
 434 {
 435     m_bestSizeCache = wxDefaultSize;
 436
 437     // parent's best size calculation may depend on its children's
 438     // as long as child window we are in is not top level window itself
 439     // (because the TLW size is never resized automatically)
 440     // so let's invalidate it as well to be safe:
 441     if (m_parent && !IsTopLevel())
 442         m_parent->InvalidateBestSize();
 443 }
 444
 445 // return the size best suited for the current window
 446 wxSize wxWindowBase::DoGetBestSize() const
 447 {
 448     wxSize best;
 449
 450     if ( m_windowSizer )
 451     {
 452         best = GetWindowSizeForVirtualSize(m_windowSizer->GetMinSize());
 453     }
 454 #if wxUSE_CONSTRAINTS
 455     else if ( m_constraints )
 456     {
 457         wxConstCast(this, wxWindowBase)->SatisfyConstraints();
 458
 459         // our minimal acceptable size is such that all our windows fit inside
 460         int maxX = 0,
 461             maxY = 0;
 462
 463         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 464               node;
 465               node = node->GetNext() )
 466         {
 467             wxLayoutConstraints *c = node->GetData()->GetConstraints();
 468             if ( !c )
 469             {
 470                 // it's not normal that we have an unconstrained child, but
 471                 // what can we do about it?
 472                 continue;
 473             }
 474
 475             int x = c->right.GetValue(),
 476                 y = c->bottom.GetValue();
 477
 478             if ( x > maxX )
 479                 maxX = x;
 480
 481             if ( y > maxY )
 482                 maxY = y;
 483
 484             // TODO: we must calculate the overlaps somehow, otherwise we
 485             //       will never return a size bigger than the current one :-(
 486         }
 487
 488         best = wxSize(maxX, maxY);
 489     }
 490 #endif // wxUSE_CONSTRAINTS
 491     else if ( !GetChildren().empty()
 492 #ifdef __WXMAC__
 493               && wxHasRealChildren(this)
 494 #endif
 495               )
 496     {
 497         // our minimal acceptable size is such that all our visible child
 498         // windows fit inside
 499         int maxX = 0,
 500             maxY = 0;
 501
 502         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 503               node;
 504               node = node->GetNext() )
 505         {
 506             wxWindow *win = node->GetData();
 507             if ( win->IsTopLevel()
 508                     || !win->IsShown()
 509 #if wxUSE_STATUSBAR
 510                         || wxDynamicCast(win, wxStatusBar)
 511 #endif // wxUSE_STATUSBAR
 512                )
 513             {
 514                 // dialogs and frames lie in different top level windows -
 515                 // don't deal with them here; as for the status bars, they
 516                 // don't lie in the client area at all
 517                 continue;
 518             }
 519
 520             int wx, wy, ww, wh;
 521             win->GetPosition(&wx, &wy);
 522
 523             // if the window hadn't been positioned yet, assume that it is in
 524             // the origin
 525             if ( wx == wxDefaultCoord )
 526                 wx = 0;
 527             if ( wy == wxDefaultCoord )
 528                 wy = 0;
 529
 530             win->GetSize(&ww, &wh);
 531             if ( wx + ww > maxX )
 532                 maxX = wx + ww;
 533             if ( wy + wh > maxY )
 534                 maxY = wy + wh;
 535         }
 536
 537         best = wxSize(maxX, maxY);
 538     }
 539     else // ! has children
 540     {
 541         // for a generic window there is no natural best size so, if the
 542         // minimal size is not set, use the current size but take care to
 543         // remember it as minimal size for the next time because our best size
 544         // should be constant: otherwise we could get into a situation when the
 545         // window is initially at some size, then expanded to a larger size and
 546         // then, when the containing window is shrunk back (because our initial
 547         // best size had been used for computing the parent min size), we can't
 548         // be shrunk back any more because our best size is now bigger
 549         wxSize size = GetMinSize();
 550         if ( !size.IsFullySpecified() )
 551         {
 552             size.SetDefaults(GetSize());
 553             wxConstCast(this, wxWindowBase)->SetMinSize(size);
 554         }
 555
 556         // return as-is, unadjusted by the client size difference.
 557         return size;
 558     }
 559
 560     // Add any difference between size and client size
 561     wxSize diff = GetSize() - GetClientSize();
 562     best.x += wxMax(0, diff.x);
 563     best.y += wxMax(0, diff.y);
 564
 565     return best;
 566 }
 567
 568
 569 wxSize wxWindowBase::GetBestFittingSize() const
 570 {
 571     // merge the best size with the min size, giving priority to the min size
 572     wxSize min = GetMinSize();
 573     if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
 574     {
 575         wxSize best = GetBestSize();
 576         if (min.x == wxDefaultCoord) min.x =  best.x;
 577         if (min.y == wxDefaultCoord) min.y =  best.y;
 578     }
 579     return min;
 580 }
 581
 582
 583 void wxWindowBase::SetBestFittingSize(const wxSize& size)
 584 {
 585     // Set the min size to the size passed in.  This will usually either be
 586     // wxDefaultSize or the size passed to this window's ctor/Create function.
 587     SetMinSize(size);
 588
 589     // Merge the size with the best size if needed
 590     wxSize best = GetBestFittingSize();
 591
 592     // If the current size doesn't match then change it
 593     if (GetSize() != best)
 594         SetSize(best);
 595 }
 596
 597
 598 // by default the origin is not shifted
 599 wxPoint wxWindowBase::GetClientAreaOrigin() const
 600 {
 601     return wxPoint(0,0);
 602 }
 603
 604 // set the min/max size of the window
 605 void wxWindowBase::DoSetSizeHints(int minW, int minH,
 606                                   int maxW, int maxH,
 607                                   int WXUNUSED(incW), int WXUNUSED(incH))
 608 {
 609     // setting min width greater than max width leads to infinite loops under
 610     // X11 and generally doesn't make any sense, so don't allow it
 611     wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
 612                     (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
 613                  _T("min width/height must be less than max width/height!") );
 614
 615     m_minWidth = minW;
 616     m_maxWidth = maxW;
 617     m_minHeight = minH;
 618     m_maxHeight = maxH;
 619 }
 620
 621 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 622 {
 623     if ( m_windowVariant != variant )
 624     {
 625         m_windowVariant = variant;
 626
 627         DoSetWindowVariant(variant);
 628     }
 629 }
 630
 631 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
 632 {
 633     // adjust the font height to correspond to our new variant (notice that
 634     // we're only called if something really changed)
 635     wxFont font = GetFont();
 636     int size = font.GetPointSize();
 637     switch ( variant )
 638     {
 639         case wxWINDOW_VARIANT_NORMAL:
 640             break;
 641
 642         case wxWINDOW_VARIANT_SMALL:
 643             size *= 3;
 644             size /= 4;
 645             break;
 646
 647         case wxWINDOW_VARIANT_MINI:
 648             size *= 2;
 649             size /= 3;
 650             break;
 651
 652         case wxWINDOW_VARIANT_LARGE:
 653             size *= 5;
 654             size /= 4;
 655             break;
 656
 657         default:
 658             wxFAIL_MSG(_T("unexpected window variant"));
 659             break;
 660     }
 661
 662     font.SetPointSize(size);
 663     SetFont(font);
 664 }
 665
 666 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
 667                                         int maxW, int maxH )
 668 {
 669     m_minVirtualWidth = minW;
 670     m_maxVirtualWidth = maxW;
 671     m_minVirtualHeight = minH;
 672     m_maxVirtualHeight = maxH;
 673 }
 674
 675 void wxWindowBase::DoSetVirtualSize( int x, int y )
 676 {
 677     if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
 678         x = m_minVirtualWidth;
 679     if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
 680         x = m_maxVirtualWidth;
 681     if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
 682         y = m_minVirtualHeight;
 683     if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
 684         y = m_maxVirtualHeight;
 685
 686     m_virtualSize = wxSize(x, y);
 687 }
 688
 689 wxSize wxWindowBase::DoGetVirtualSize() const
 690 {
 691     // we should use the entire client area so if it is greater than our
 692     // virtual size, expand it to fit (otherwise if the window is big enough we
 693     // wouldn't be using parts of it)
 694     wxSize size = GetClientSize();
 695     if ( m_virtualSize.x > size.x )
 696         size.x = m_virtualSize.x;
 697
 698     if ( m_virtualSize.y >= size.y )
 699         size.y = m_virtualSize.y;
 700
 701     return size;
 702 }
 703
 704 void wxWindowBase::DoGetScreenPosition(int *x, int *y) const
 705 {
 706     // screen position is the same as (0, 0) in client coords for non TLWs (and
 707     // TLWs override this method)
 708     if ( x )
 709         *x = 0;
 710     if ( y )
 711         *y = 0;
 712
 713     ClientToScreen(x, y);
 714 }
 715
 716 // ----------------------------------------------------------------------------
 717 // show/hide/enable/disable the window
 718 // ----------------------------------------------------------------------------
 719
 720 bool wxWindowBase::Show(bool show)
 721 {
 722     if ( show != m_isShown )
 723     {
 724         m_isShown = show;
 725
 726         return true;
 727     }
 728     else
 729     {
 730         return false;
 731     }
 732 }
 733
 734 bool wxWindowBase::Enable(bool enable)
 735 {
 736     if ( enable != m_isEnabled )
 737     {
 738         m_isEnabled = enable;
 739
 740         return true;
 741     }
 742     else
 743     {
 744         return false;
 745     }
 746 }
 747 // ----------------------------------------------------------------------------
 748 // RTTI
 749 // ----------------------------------------------------------------------------
 750
 751 bool wxWindowBase::IsTopLevel() const
 752 {
 753     return false;
 754 }
 755
 756 // ----------------------------------------------------------------------------
 757 // reparenting the window
 758 // ----------------------------------------------------------------------------
 759
 760 void wxWindowBase::AddChild(wxWindowBase *child)
 761 {
 762     wxCHECK_RET( child, wxT("can't add a NULL child") );
 763
 764     // this should never happen and it will lead to a crash later if it does
 765     // because RemoveChild() will remove only one node from the children list
 766     // and the other(s) one(s) will be left with dangling pointers in them
 767     wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
 768
 769     GetChildren().Append((wxWindow*)child);
 770     child->SetParent(this);
 771 }
 772
 773 void wxWindowBase::RemoveChild(wxWindowBase *child)
 774 {
 775     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 776
 777     GetChildren().DeleteObject((wxWindow *)child);
 778     child->SetParent(NULL);
 779 }
 780
 781 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 782 {
 783     wxWindow *oldParent = GetParent();
 784     if ( newParent == oldParent )
 785     {
 786         // nothing done
 787         return false;
 788     }
 789
 790     // unlink this window from the existing parent.
 791     if ( oldParent )
 792     {
 793         oldParent->RemoveChild(this);
 794     }
 795     else
 796     {
 797         wxTopLevelWindows.DeleteObject((wxWindow *)this);
 798     }
 799
 800     // add it to the new one
 801     if ( newParent )
 802     {
 803         newParent->AddChild(this);
 804     }
 805     else
 806     {
 807         wxTopLevelWindows.Append((wxWindow *)this);
 808     }
 809
 810     return true;
 811 }
 812
 813 // ----------------------------------------------------------------------------
 814 // event handler stuff
 815 // ----------------------------------------------------------------------------
 816
 817 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
 818 {
 819     wxEvtHandler *handlerOld = GetEventHandler();
 820
 821     handler->SetNextHandler(handlerOld);
 822
 823     if ( handlerOld )
 824         GetEventHandler()->SetPreviousHandler(handler);
 825
 826     SetEventHandler(handler);
 827 }
 828
 829 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 830 {
 831     wxEvtHandler *handlerA = GetEventHandler();
 832     if ( handlerA )
 833     {
 834         wxEvtHandler *handlerB = handlerA->GetNextHandler();
 835         handlerA->SetNextHandler((wxEvtHandler *)NULL);
 836
 837         if ( handlerB )
 838             handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
 839         SetEventHandler(handlerB);
 840
 841         if ( deleteHandler )
 842         {
 843             delete handlerA;
 844             handlerA = (wxEvtHandler *)NULL;
 845         }
 846     }
 847
 848     return handlerA;
 849 }
 850
 851 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
 852 {
 853     wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
 854
 855     wxEvtHandler *handlerPrev = NULL,
 856                  *handlerCur = GetEventHandler();
 857     while ( handlerCur )
 858     {
 859         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 860
 861         if ( handlerCur == handler )
 862         {
 863             if ( handlerPrev )
 864             {
 865                 handlerPrev->SetNextHandler(handlerNext);
 866             }
 867             else
 868             {
 869                 SetEventHandler(handlerNext);
 870             }
 871
 872             if ( handlerNext )
 873             {
 874                 handlerNext->SetPreviousHandler ( handlerPrev );
 875             }
 876
 877             handler->SetNextHandler(NULL);
 878             handler->SetPreviousHandler(NULL);
 879
 880             return true;
 881         }
 882
 883         handlerPrev = handlerCur;
 884         handlerCur = handlerNext;
 885     }
 886
 887     wxFAIL_MSG( _T("where has the event handler gone?") );
 888
 889     return false;
 890 }
 891
 892 // ----------------------------------------------------------------------------
 893 // colours, fonts &c
 894 // ----------------------------------------------------------------------------
 895
 896 void wxWindowBase::InheritAttributes()
 897 {
 898     const wxWindowBase * const parent = GetParent();
 899     if ( !parent )
 900         return;
 901
 902     // we only inherit attributes which had been explicitly set for the parent
 903     // which ensures that this only happens if the user really wants it and
 904     // not by default which wouldn't make any sense in modern GUIs where the
 905     // controls don't all use the same fonts (nor colours)
 906     if ( parent->m_inheritFont && !m_hasFont )
 907         SetFont(parent->GetFont());
 908
 909     // in addition, there is a possibility to explicitly forbid inheriting
 910     // colours at each class level by overriding ShouldInheritColours()
 911     if ( ShouldInheritColours() )
 912     {
 913         if ( parent->m_inheritFgCol && !m_hasFgCol )
 914             SetForegroundColour(parent->GetForegroundColour());
 915
 916         // inheriting (solid) background colour is wrong as it totally breaks
 917         // any kind of themed backgrounds
 918         //
 919         // instead, the controls should use the same background as their parent
 920         // (ideally by not drawing it at all)
 921 #if 0
 922         if ( parent->m_inheritBgCol && !m_hasBgCol )
 923             SetBackgroundColour(parent->GetBackgroundColour());
 924 #endif // 0
 925     }
 926 }
 927
 928 /* static */ wxVisualAttributes
 929 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 930 {
 931     // it is important to return valid values for all attributes from here,
 932     // GetXXX() below rely on this
 933     wxVisualAttributes attrs;
 934     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 935     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
 936
 937     // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
 938     // the usual background colour than wxSYS_COLOUR_BTNFACE.
 939     // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
 940     // colour on other platforms.
 941
 942 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
 943     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
 944 #else
 945     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
 946 #endif
 947     return attrs;
 948 }
 949
 950 wxColour wxWindowBase::GetBackgroundColour() const
 951 {
 952     if ( !m_backgroundColour.Ok() )
 953     {
 954         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
 955
 956         // get our default background colour
 957         wxColour colBg = GetDefaultAttributes().colBg;
 958
 959         // we must return some valid colour to avoid redoing this every time
 960         // and also to avoid surprizing the applications written for older
 961         // wxWidgets versions where GetBackgroundColour() always returned
 962         // something -- so give them something even if it doesn't make sense
 963         // for this window (e.g. it has a themed background)
 964         if ( !colBg.Ok() )
 965             colBg = GetClassDefaultAttributes().colBg;
 966
 967         return colBg;
 968     }
 969     else
 970         return m_backgroundColour;
 971 }
 972
 973 wxColour wxWindowBase::GetForegroundColour() const
 974 {
 975     // logic is the same as above
 976     if ( !m_hasFgCol && !m_foregroundColour.Ok() )
 977     {
 978         wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
 979
 980         wxColour colFg = GetDefaultAttributes().colFg;
 981
 982         if ( !colFg.Ok() )
 983             colFg = GetClassDefaultAttributes().colFg;
 984
 985         return colFg;
 986     }
 987     else
 988         return m_foregroundColour;
 989 }
 990
 991 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
 992 {
 993     if ( colour == m_backgroundColour )
 994         return false;
 995
 996     m_hasBgCol = colour.Ok();
 997     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
 998         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
 999
1000     m_inheritBgCol = m_hasBgCol;
1001     m_backgroundColour = colour;
1002     SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1003     return true;
1004 }
1005
1006 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1007 {
1008     if (colour == m_foregroundColour )
1009         return false;
1010
1011     m_hasFgCol = colour.Ok();
1012     m_inheritFgCol = m_hasFgCol;
1013     m_foregroundColour = colour;
1014     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1015     return true;
1016 }
1017
1018 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1019 {
1020     // setting an invalid cursor is ok, it means that we don't have any special
1021     // cursor
1022     if ( m_cursor == cursor )
1023     {
1024         // no change
1025         return false;
1026     }
1027
1028     m_cursor = cursor;
1029
1030     return true;
1031 }
1032
1033 wxFont wxWindowBase::GetFont() const
1034 {
1035     // logic is the same as in GetBackgroundColour()
1036     if ( !m_font.Ok() )
1037     {
1038         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1039
1040         wxFont font = GetDefaultAttributes().font;
1041         if ( !font.Ok() )
1042             font = GetClassDefaultAttributes().font;
1043
1044         return font;
1045     }
1046     else
1047         return m_font;
1048 }
1049
1050 bool wxWindowBase::SetFont(const wxFont& font)
1051 {
1052     if ( font == m_font )
1053     {
1054         // no change
1055         return false;
1056     }
1057
1058     m_font = font;
1059     m_hasFont = font.Ok();
1060     m_inheritFont = m_hasFont;
1061
1062     InvalidateBestSize();
1063
1064     return true;
1065 }
1066
1067 #if wxUSE_PALETTE
1068
1069 void wxWindowBase::SetPalette(const wxPalette& pal)
1070 {
1071     m_hasCustomPalette = true;
1072     m_palette = pal;
1073
1074     // VZ: can anyone explain me what do we do here?
1075     wxWindowDC d((wxWindow *) this);
1076     d.SetPalette(pal);
1077 }
1078
1079 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1080 {
1081     wxWindow *win = (wxWindow *)this;
1082     while ( win && !win->HasCustomPalette() )
1083     {
1084         win = win->GetParent();
1085     }
1086
1087     return win;
1088 }
1089
1090 #endif // wxUSE_PALETTE
1091
1092 #if wxUSE_CARET
1093 void wxWindowBase::SetCaret(wxCaret *caret)
1094 {
1095     if ( m_caret )
1096     {
1097         delete m_caret;
1098     }
1099
1100     m_caret = caret;
1101
1102     if ( m_caret )
1103     {
1104         wxASSERT_MSG( m_caret->GetWindow() == this,
1105                       wxT("caret should be created associated to this window") );
1106     }
1107 }
1108 #endif // wxUSE_CARET
1109
1110 #if wxUSE_VALIDATORS
1111 // ----------------------------------------------------------------------------
1112 // validators
1113 // ----------------------------------------------------------------------------
1114
1115 void wxWindowBase::SetValidator(const wxValidator& validator)
1116 {
1117     if ( m_windowValidator )
1118         delete m_windowValidator;
1119
1120     m_windowValidator = (wxValidator *)validator.Clone();
1121
1122     if ( m_windowValidator )
1123         m_windowValidator->SetWindow(this);
1124 }
1125 #endif // wxUSE_VALIDATORS
1126
1127 // ----------------------------------------------------------------------------
1128 // update region stuff
1129 // ----------------------------------------------------------------------------
1130
1131 wxRect wxWindowBase::GetUpdateClientRect() const
1132 {
1133     wxRegion rgnUpdate = GetUpdateRegion();
1134     rgnUpdate.Intersect(GetClientRect());
1135     wxRect rectUpdate = rgnUpdate.GetBox();
1136     wxPoint ptOrigin = GetClientAreaOrigin();
1137     rectUpdate.x -= ptOrigin.x;
1138     rectUpdate.y -= ptOrigin.y;
1139
1140     return rectUpdate;
1141 }
1142
1143 bool wxWindowBase::IsExposed(int x, int y) const
1144 {
1145     return m_updateRegion.Contains(x, y) != wxOutRegion;
1146 }
1147
1148 bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
1149 {
1150     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1151 }
1152
1153 void wxWindowBase::ClearBackground()
1154 {
1155     // wxGTK uses its own version, no need to add never used code
1156 #ifndef __WXGTK__
1157     wxClientDC dc((wxWindow *)this);
1158     wxBrush brush(GetBackgroundColour(), wxSOLID);
1159     dc.SetBackground(brush);
1160     dc.Clear();
1161 #endif // __WXGTK__
1162 }
1163
1164 // ----------------------------------------------------------------------------
1165 // find child window by id or name
1166 // ----------------------------------------------------------------------------
1167
1168 wxWindow *wxWindowBase::FindWindow(long id) const
1169 {
1170     if ( id == m_windowId )
1171         return (wxWindow *)this;
1172
1173     wxWindowBase *res = (wxWindow *)NULL;
1174     wxWindowList::compatibility_iterator node;
1175     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1176     {
1177         wxWindowBase *child = node->GetData();
1178         res = child->FindWindow( id );
1179     }
1180
1181     return (wxWindow *)res;
1182 }
1183
1184 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1185 {
1186     if ( name == m_windowName )
1187         return (wxWindow *)this;
1188
1189     wxWindowBase *res = (wxWindow *)NULL;
1190     wxWindowList::compatibility_iterator node;
1191     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1192     {
1193         wxWindow *child = node->GetData();
1194         res = child->FindWindow(name);
1195     }
1196
1197     return (wxWindow *)res;
1198 }
1199
1200
1201 // find any window by id or name or label: If parent is non-NULL, look through
1202 // children for a label or title matching the specified string. If NULL, look
1203 // through all top-level windows.
1204 //
1205 // to avoid duplicating code we reuse the same helper function but with
1206 // different comparators
1207
1208 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1209                                 const wxString& label, long id);
1210
1211 static
1212 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1213                            long WXUNUSED(id))
1214 {
1215     return win->GetLabel() == label;
1216 }
1217
1218 static
1219 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1220                           long WXUNUSED(id))
1221 {
1222     return win->GetName() == label;
1223 }
1224
1225 static
1226 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1227                         long id)
1228 {
1229     return win->GetId() == id;
1230 }
1231
1232 // recursive helper for the FindWindowByXXX() functions
1233 static
1234 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1235                                   const wxString& label,
1236                                   long id,
1237                                   wxFindWindowCmp cmp)
1238 {
1239     if ( parent )
1240     {
1241         // see if this is the one we're looking for
1242         if ( (*cmp)(parent, label, id) )
1243             return (wxWindow *)parent;
1244
1245         // It wasn't, so check all its children
1246         for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1247               node;
1248               node = node->GetNext() )
1249         {
1250             // recursively check each child
1251             wxWindow *win = (wxWindow *)node->GetData();
1252             wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1253             if (retwin)
1254                 return retwin;
1255         }
1256     }
1257
1258     // Not found
1259     return NULL;
1260 }
1261
1262 // helper for FindWindowByXXX()
1263 static
1264 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1265                              const wxString& label,
1266                              long id,
1267                              wxFindWindowCmp cmp)
1268 {
1269     if ( parent )
1270     {
1271         // just check parent and all its children
1272         return wxFindWindowRecursively(parent, label, id, cmp);
1273     }
1274
1275     // start at very top of wx's windows
1276     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1277           node;
1278           node = node->GetNext() )
1279     {
1280         // recursively check each window & its children
1281         wxWindow *win = node->GetData();
1282         wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1283         if (retwin)
1284             return retwin;
1285     }
1286
1287     return NULL;
1288 }
1289
1290 /* static */
1291 wxWindow *
1292 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1293 {
1294     return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1295 }
1296
1297 /* static */
1298 wxWindow *
1299 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1300 {
1301     wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1302
1303     if ( !win )
1304     {
1305         // fall back to the label
1306         win = FindWindowByLabel(title, parent);
1307     }
1308
1309     return win;
1310 }
1311
1312 /* static */
1313 wxWindow *
1314 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1315 {
1316     return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1317 }
1318
1319 // ----------------------------------------------------------------------------
1320 // dialog oriented functions
1321 // ----------------------------------------------------------------------------
1322
1323 void wxWindowBase::MakeModal(bool modal)
1324 {
1325     // Disable all other windows
1326     if ( IsTopLevel() )
1327     {
1328         wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1329         while (node)
1330         {
1331             wxWindow *win = node->GetData();
1332             if (win != this)
1333                 win->Enable(!modal);
1334
1335             node = node->GetNext();
1336         }
1337     }
1338 }
1339
1340 bool wxWindowBase::Validate()
1341 {
1342 #if wxUSE_VALIDATORS
1343     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1344
1345     wxWindowList::compatibility_iterator node;
1346     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1347     {
1348         wxWindowBase *child = node->GetData();
1349         wxValidator *validator = child->GetValidator();
1350         if ( validator && !validator->Validate((wxWindow *)this) )
1351         {
1352             return false;
1353         }
1354
1355         if ( recurse && !child->Validate() )
1356         {
1357             return false;
1358         }
1359     }
1360 #endif // wxUSE_VALIDATORS
1361
1362     return true;
1363 }
1364
1365 bool wxWindowBase::TransferDataToWindow()
1366 {
1367 #if wxUSE_VALIDATORS
1368     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1369
1370     wxWindowList::compatibility_iterator node;
1371     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1372     {
1373         wxWindowBase *child = node->GetData();
1374         wxValidator *validator = child->GetValidator();
1375         if ( validator && !validator->TransferToWindow() )
1376         {
1377             wxLogWarning(_("Could not transfer data to window"));
1378 #if wxUSE_LOG
1379             wxLog::FlushActive();
1380 #endif // wxUSE_LOG
1381
1382             return false;
1383         }
1384
1385         if ( recurse )
1386         {
1387             if ( !child->TransferDataToWindow() )
1388             {
1389                 // warning already given
1390                 return false;
1391             }
1392         }
1393     }
1394 #endif // wxUSE_VALIDATORS
1395
1396     return true;
1397 }
1398
1399 bool wxWindowBase::TransferDataFromWindow()
1400 {
1401 #if wxUSE_VALIDATORS
1402     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1403
1404     wxWindowList::compatibility_iterator node;
1405     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1406     {
1407         wxWindow *child = node->GetData();
1408         wxValidator *validator = child->GetValidator();
1409         if ( validator && !validator->TransferFromWindow() )
1410         {
1411             // nop warning here because the application is supposed to give
1412             // one itself - we don't know here what might have gone wrongly
1413
1414             return false;
1415         }
1416
1417         if ( recurse )
1418         {
1419             if ( !child->TransferDataFromWindow() )
1420             {
1421                 // warning already given
1422                 return false;
1423             }
1424         }
1425     }
1426 #endif // wxUSE_VALIDATORS
1427
1428     return true;
1429 }
1430
1431 void wxWindowBase::InitDialog()
1432 {
1433     wxInitDialogEvent event(GetId());
1434     event.SetEventObject( this );
1435     GetEventHandler()->ProcessEvent(event);
1436 }
1437
1438 // ----------------------------------------------------------------------------
1439 // context-sensitive help support
1440 // ----------------------------------------------------------------------------
1441
1442 #if wxUSE_HELP
1443
1444 // associate this help text with this window
1445 void wxWindowBase::SetHelpText(const wxString& text)
1446 {
1447     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1448     if ( helpProvider )
1449     {
1450         helpProvider->AddHelp(this, text);
1451     }
1452 }
1453
1454 // associate this help text with all windows with the same id as this
1455 // one
1456 void wxWindowBase::SetHelpTextForId(const wxString& text)
1457 {
1458     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1459     if ( helpProvider )
1460     {
1461         helpProvider->AddHelp(GetId(), text);
1462     }
1463 }
1464
1465 // get the help string associated with this window (may be empty)
1466 // default implementation forwards calls to the help provider
1467 wxString
1468 wxWindowBase::GetHelpTextAtPoint(const wxPoint & WXUNUSED(pt),
1469                                  wxHelpEvent::Origin WXUNUSED(origin)) const
1470 {
1471     wxString text;
1472     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1473     if ( helpProvider )
1474     {
1475         text = helpProvider->GetHelp(this);
1476     }
1477
1478     return text;
1479 }
1480
1481 // show help for this window
1482 void wxWindowBase::OnHelp(wxHelpEvent& event)
1483 {
1484     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1485     if ( helpProvider )
1486     {
1487         if ( helpProvider->ShowHelpAtPoint(this, event.GetPosition(), event.GetOrigin()) )
1488         {
1489             // skip the event.Skip() below
1490             return;
1491         }
1492     }
1493
1494     event.Skip();
1495 }
1496
1497 #endif // wxUSE_HELP
1498
1499 // ----------------------------------------------------------------------------
1500 // tooltipsroot.Replace("\\", "/");
1501 // ----------------------------------------------------------------------------
1502
1503 #if wxUSE_TOOLTIPS
1504
1505 void wxWindowBase::SetToolTip( const wxString &tip )
1506 {
1507     // don't create the new tooltip if we already have one
1508     if ( m_tooltip )
1509     {
1510         m_tooltip->SetTip( tip );
1511     }
1512     else
1513     {
1514         SetToolTip( new wxToolTip( tip ) );
1515     }
1516
1517     // setting empty tooltip text does not remove the tooltip any more - use
1518     // SetToolTip((wxToolTip *)NULL) for this
1519 }
1520
1521 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1522 {
1523     if ( m_tooltip != tooltip )
1524     {
1525         if ( m_tooltip )
1526             delete m_tooltip;
1527
1528         m_tooltip = tooltip;
1529     }
1530 }
1531
1532 #endif // wxUSE_TOOLTIPS
1533
1534 // ----------------------------------------------------------------------------
1535 // constraints and sizers
1536 // ----------------------------------------------------------------------------
1537
1538 #if wxUSE_CONSTRAINTS
1539
1540 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1541 {
1542     if ( m_constraints )
1543     {
1544         UnsetConstraints(m_constraints);
1545         delete m_constraints;
1546     }
1547     m_constraints = constraints;
1548     if ( m_constraints )
1549     {
1550         // Make sure other windows know they're part of a 'meaningful relationship'
1551         if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1552             m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1553         if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1554             m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1555         if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1556             m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1557         if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1558             m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1559         if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1560             m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1561         if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1562             m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1563         if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1564             m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1565         if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1566             m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1567     }
1568 }
1569
1570 // This removes any dangling pointers to this window in other windows'
1571 // constraintsInvolvedIn lists.
1572 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1573 {
1574     if ( c )
1575     {
1576         if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1577             c->left.GetOtherWindow()->RemoveConstraintReference(this);
1578         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1579             c->top.GetOtherWindow()->RemoveConstraintReference(this);
1580         if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1581             c->right.GetOtherWindow()->RemoveConstraintReference(this);
1582         if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1583             c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1584         if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1585             c->width.GetOtherWindow()->RemoveConstraintReference(this);
1586         if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1587             c->height.GetOtherWindow()->RemoveConstraintReference(this);
1588         if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1589             c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1590         if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1591             c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1592     }
1593 }
1594
1595 // Back-pointer to other windows we're involved with, so if we delete this
1596 // window, we must delete any constraints we're involved with.
1597 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1598 {
1599     if ( !m_constraintsInvolvedIn )
1600         m_constraintsInvolvedIn = new wxWindowList;
1601     if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1602         m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1603 }
1604
1605 // REMOVE back-pointer to other windows we're involved with.
1606 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1607 {
1608     if ( m_constraintsInvolvedIn )
1609         m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1610 }
1611
1612 // Reset any constraints that mention this window
1613 void wxWindowBase::DeleteRelatedConstraints()
1614 {
1615     if ( m_constraintsInvolvedIn )
1616     {
1617         wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1618         while (node)
1619         {
1620             wxWindow *win = node->GetData();
1621             wxLayoutConstraints *constr = win->GetConstraints();
1622
1623             // Reset any constraints involving this window
1624             if ( constr )
1625             {
1626                 constr->left.ResetIfWin(this);
1627                 constr->top.ResetIfWin(this);
1628                 constr->right.ResetIfWin(this);
1629                 constr->bottom.ResetIfWin(this);
1630                 constr->width.ResetIfWin(this);
1631                 constr->height.ResetIfWin(this);
1632                 constr->centreX.ResetIfWin(this);
1633                 constr->centreY.ResetIfWin(this);
1634             }
1635
1636             wxWindowList::compatibility_iterator next = node->GetNext();
1637             m_constraintsInvolvedIn->Erase(node);
1638             node = next;
1639         }
1640
1641         delete m_constraintsInvolvedIn;
1642         m_constraintsInvolvedIn = (wxWindowList *) NULL;
1643     }
1644 }
1645
1646 #endif // wxUSE_CONSTRAINTS
1647
1648 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1649 {
1650     if ( sizer == m_windowSizer)
1651         return;
1652
1653     if ( deleteOld )
1654         delete m_windowSizer;
1655
1656     m_windowSizer = sizer;
1657
1658     SetAutoLayout( sizer != NULL );
1659 }
1660
1661 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1662 {
1663     SetSizer( sizer, deleteOld );
1664     sizer->SetSizeHints( (wxWindow*) this );
1665 }
1666
1667
1668 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1669 {
1670     // adding a window to a sizer twice is going to result in fatal and
1671     // hard to debug problems later because when deleting the second
1672     // associated wxSizerItem we're going to dereference a dangling
1673     // pointer; so try to detect this as early as possible
1674     wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1675                   _T("Adding a window to the same sizer twice?") );
1676
1677     m_containingSizer = sizer;
1678 }
1679
1680 #if wxUSE_CONSTRAINTS
1681
1682 void wxWindowBase::SatisfyConstraints()
1683 {
1684     wxLayoutConstraints *constr = GetConstraints();
1685     bool wasOk = constr && constr->AreSatisfied();
1686
1687     ResetConstraints();   // Mark all constraints as unevaluated
1688
1689     int noChanges = 1;
1690
1691     // if we're a top level panel (i.e. our parent is frame/dialog), our
1692     // own constraints will never be satisfied any more unless we do it
1693     // here
1694     if ( wasOk )
1695     {
1696         while ( noChanges > 0 )
1697         {
1698             LayoutPhase1(&noChanges);
1699         }
1700     }
1701
1702     LayoutPhase2(&noChanges);
1703 }
1704
1705 #endif // wxUSE_CONSTRAINTS
1706
1707 bool wxWindowBase::Layout()
1708 {
1709     // If there is a sizer, use it instead of the constraints
1710     if ( GetSizer() )
1711     {
1712         int w = 0, h = 0;
1713         GetVirtualSize(&w, &h);
1714         GetSizer()->SetDimension( 0, 0, w, h );
1715     }
1716 #if wxUSE_CONSTRAINTS
1717     else
1718     {
1719         SatisfyConstraints(); // Find the right constraints values
1720         SetConstraintSizes(); // Recursively set the real window sizes
1721     }
1722 #endif
1723
1724     return true;
1725 }
1726
1727 #if wxUSE_CONSTRAINTS
1728
1729 // first phase of the constraints evaluation: set our own constraints
1730 bool wxWindowBase::LayoutPhase1(int *noChanges)
1731 {
1732     wxLayoutConstraints *constr = GetConstraints();
1733
1734     return !constr || constr->SatisfyConstraints(this, noChanges);
1735 }
1736
1737 // second phase: set the constraints for our children
1738 bool wxWindowBase::LayoutPhase2(int *noChanges)
1739 {
1740     *noChanges = 0;
1741
1742     // Layout children
1743     DoPhase(1);
1744
1745     // Layout grand children
1746     DoPhase(2);
1747
1748     return true;
1749 }
1750
1751 // Do a phase of evaluating child constraints
1752 bool wxWindowBase::DoPhase(int phase)
1753 {
1754     // the list containing the children for which the constraints are already
1755     // set correctly
1756     wxWindowList succeeded;
1757
1758     // the max number of iterations we loop before concluding that we can't set
1759     // the constraints
1760     static const int maxIterations = 500;
1761
1762     for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1763     {
1764         int noChanges = 0;
1765
1766         // loop over all children setting their constraints
1767         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1768               node;
1769               node = node->GetNext() )
1770         {
1771             wxWindow *child = node->GetData();
1772             if ( child->IsTopLevel() )
1773             {
1774                 // top level children are not inside our client area
1775                 continue;
1776             }
1777
1778             if ( !child->GetConstraints() || succeeded.Find(child) )
1779             {
1780                 // this one is either already ok or nothing we can do about it
1781                 continue;
1782             }
1783
1784             int tempNoChanges = 0;
1785             bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1786                                       : child->LayoutPhase2(&tempNoChanges);
1787             noChanges += tempNoChanges;
1788
1789             if ( success )
1790             {
1791                 succeeded.Append(child);
1792             }
1793         }
1794
1795         if ( !noChanges )
1796         {
1797             // constraints are set
1798             break;
1799         }
1800     }
1801
1802     return true;
1803 }
1804
1805 void wxWindowBase::ResetConstraints()
1806 {
1807     wxLayoutConstraints *constr = GetConstraints();
1808     if ( constr )
1809     {
1810         constr->left.SetDone(false);
1811         constr->top.SetDone(false);
1812         constr->right.SetDone(false);
1813         constr->bottom.SetDone(false);
1814         constr->width.SetDone(false);
1815         constr->height.SetDone(false);
1816         constr->centreX.SetDone(false);
1817         constr->centreY.SetDone(false);
1818     }
1819
1820     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1821     while (node)
1822     {
1823         wxWindow *win = node->GetData();
1824         if ( !win->IsTopLevel() )
1825             win->ResetConstraints();
1826         node = node->GetNext();
1827     }
1828 }
1829
1830 // Need to distinguish between setting the 'fake' size for windows and sizers,
1831 // and setting the real values.
1832 void wxWindowBase::SetConstraintSizes(bool recurse)
1833 {
1834     wxLayoutConstraints *constr = GetConstraints();
1835     if ( constr && constr->AreSatisfied() )
1836     {
1837         int x = constr->left.GetValue();
1838         int y = constr->top.GetValue();
1839         int w = constr->width.GetValue();
1840         int h = constr->height.GetValue();
1841
1842         if ( (constr->width.GetRelationship() != wxAsIs ) ||
1843              (constr->height.GetRelationship() != wxAsIs) )
1844         {
1845             SetSize(x, y, w, h);
1846         }
1847         else
1848         {
1849             // If we don't want to resize this window, just move it...
1850             Move(x, y);
1851         }
1852     }
1853     else if ( constr )
1854     {
1855         wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1856                    GetClassInfo()->GetClassName(),
1857                    GetName().c_str());
1858     }
1859
1860     if ( recurse )
1861     {
1862         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1863         while (node)
1864         {
1865             wxWindow *win = node->GetData();
1866             if ( !win->IsTopLevel() && win->GetConstraints() )
1867                 win->SetConstraintSizes();
1868             node = node->GetNext();
1869         }
1870     }
1871 }
1872
1873 // Only set the size/position of the constraint (if any)
1874 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1875 {
1876     wxLayoutConstraints *constr = GetConstraints();
1877     if ( constr )
1878     {
1879         if ( x != wxDefaultCoord )
1880         {
1881             constr->left.SetValue(x);
1882             constr->left.SetDone(true);
1883         }
1884         if ( y != wxDefaultCoord )
1885         {
1886             constr->top.SetValue(y);
1887             constr->top.SetDone(true);
1888         }
1889         if ( w != wxDefaultCoord )
1890         {
1891             constr->width.SetValue(w);
1892             constr->width.SetDone(true);
1893         }
1894         if ( h != wxDefaultCoord )
1895         {
1896             constr->height.SetValue(h);
1897             constr->height.SetDone(true);
1898         }
1899     }
1900 }
1901
1902 void wxWindowBase::MoveConstraint(int x, int y)
1903 {
1904     wxLayoutConstraints *constr = GetConstraints();
1905     if ( constr )
1906     {
1907         if ( x != wxDefaultCoord )
1908         {
1909             constr->left.SetValue(x);
1910             constr->left.SetDone(true);
1911         }
1912         if ( y != wxDefaultCoord )
1913         {
1914             constr->top.SetValue(y);
1915             constr->top.SetDone(true);
1916         }
1917     }
1918 }
1919
1920 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
1921 {
1922     wxLayoutConstraints *constr = GetConstraints();
1923     if ( constr )
1924     {
1925         *w = constr->width.GetValue();
1926         *h = constr->height.GetValue();
1927     }
1928     else
1929         GetSize(w, h);
1930 }
1931
1932 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
1933 {
1934     wxLayoutConstraints *constr = GetConstraints();
1935     if ( constr )
1936     {
1937         *w = constr->width.GetValue();
1938         *h = constr->height.GetValue();
1939     }
1940     else
1941         GetClientSize(w, h);
1942 }
1943
1944 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
1945 {
1946     wxLayoutConstraints *constr = GetConstraints();
1947     if ( constr )
1948     {
1949         *x = constr->left.GetValue();
1950         *y = constr->top.GetValue();
1951     }
1952     else
1953         GetPosition(x, y);
1954 }
1955
1956 #endif // wxUSE_CONSTRAINTS
1957
1958 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
1959 {
1960     // don't do it for the dialogs/frames - they float independently of their
1961     // parent
1962     if ( !IsTopLevel() )
1963     {
1964         wxWindow *parent = GetParent();
1965         if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
1966         {
1967             wxPoint pt(parent->GetClientAreaOrigin());
1968             x += pt.x;
1969             y += pt.y;
1970         }
1971     }
1972 }
1973
1974 // ----------------------------------------------------------------------------
1975 // do Update UI processing for child controls
1976 // ----------------------------------------------------------------------------
1977
1978 void wxWindowBase::UpdateWindowUI(long flags)
1979 {
1980     wxUpdateUIEvent event(GetId());
1981     event.SetEventObject(this);
1982
1983     if ( GetEventHandler()->ProcessEvent(event) )
1984     {
1985         DoUpdateWindowUI(event);
1986     }
1987
1988     if (flags & wxUPDATE_UI_RECURSE)
1989     {
1990         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1991         while (node)
1992         {
1993             wxWindow* child = (wxWindow*) node->GetData();
1994             child->UpdateWindowUI(flags);
1995             node = node->GetNext();
1996         }
1997     }
1998 }
1999
2000 // do the window-specific processing after processing the update event
2001 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2002 {
2003     if ( event.GetSetEnabled() )
2004         Enable(event.GetEnabled());
2005
2006     if ( event.GetSetShown() )
2007         Show(event.GetShown());
2008 }
2009
2010 #if 0
2011 // call internal idle recursively
2012 // may be obsolete (wait until OnIdle scheme stabilises)
2013 void wxWindowBase::ProcessInternalIdle()
2014 {
2015     OnInternalIdle();
2016
2017     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2018     while (node)
2019     {
2020         wxWindow *child = node->GetData();
2021         child->ProcessInternalIdle();
2022         node = node->GetNext();
2023     }
2024 }
2025 #endif
2026
2027 // ----------------------------------------------------------------------------
2028 // dialog units translations
2029 // ----------------------------------------------------------------------------
2030
2031 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2032 {
2033     int charWidth = GetCharWidth();
2034     int charHeight = GetCharHeight();
2035     wxPoint pt2 = wxDefaultPosition;
2036     if (pt.x != wxDefaultCoord)
2037         pt2.x = (int) ((pt.x * 4) / charWidth);
2038     if (pt.y != wxDefaultCoord)
2039         pt2.y = (int) ((pt.y * 8) / charHeight);
2040
2041     return pt2;
2042 }
2043
2044 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2045 {
2046     int charWidth = GetCharWidth();
2047     int charHeight = GetCharHeight();
2048     wxPoint pt2 = wxDefaultPosition;
2049     if (pt.x != wxDefaultCoord)
2050         pt2.x = (int) ((pt.x * charWidth) / 4);
2051     if (pt.y != wxDefaultCoord)
2052         pt2.y = (int) ((pt.y * charHeight) / 8);
2053
2054     return pt2;
2055 }
2056
2057 // ----------------------------------------------------------------------------
2058 // event handlers
2059 // ----------------------------------------------------------------------------
2060
2061 // propagate the colour change event to the subwindows
2062 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2063 {
2064     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2065     while ( node )
2066     {
2067         // Only propagate to non-top-level windows
2068         wxWindow *win = node->GetData();
2069         if ( !win->IsTopLevel() )
2070         {
2071             wxSysColourChangedEvent event2;
2072             event.SetEventObject(win);
2073             win->GetEventHandler()->ProcessEvent(event2);
2074         }
2075
2076         node = node->GetNext();
2077     }
2078
2079     Refresh();
2080 }
2081
2082 // the default action is to populate dialog with data when it's created,
2083 // and nudge the UI into displaying itself correctly in case
2084 // we've turned the wxUpdateUIEvents frequency down low.
2085 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2086 {
2087     TransferDataToWindow();
2088
2089     // Update the UI at this point
2090     UpdateWindowUI(wxUPDATE_UI_RECURSE);
2091 }
2092
2093 // methods for drawing the sizers in a visible way
2094 #ifdef __WXDEBUG__
2095
2096 static void DrawSizers(wxWindowBase *win);
2097
2098 static void DrawBorder(wxWindowBase *win, const wxRect& rect, bool fill = false)
2099 {
2100     wxClientDC dc((wxWindow *)win);
2101     dc.SetPen(*wxRED_PEN);
2102     dc.SetBrush(fill ? wxBrush(*wxRED, wxCROSSDIAG_HATCH): *wxTRANSPARENT_BRUSH);
2103     dc.DrawRectangle(rect.Deflate(1, 1));
2104 }
2105
2106 static void DrawSizer(wxWindowBase *win, wxSizer *sizer)
2107 {
2108     const wxSizerItemList& items = sizer->GetChildren();
2109     for ( wxSizerItemList::const_iterator i = items.begin(),
2110                                         end = items.end();
2111           i != end;
2112           ++i )
2113     {
2114         wxSizerItem *item = *i;
2115         if ( item->IsSizer() )
2116         {
2117             DrawBorder(win, item->GetRect().Deflate(2));
2118             DrawSizer(win, item->GetSizer());
2119         }
2120         else if ( item->IsSpacer() )
2121         {
2122             DrawBorder(win, item->GetRect().Deflate(2), true);
2123         }
2124         else if ( item->IsWindow() )
2125         {
2126             DrawSizers(item->GetWindow());
2127         }
2128     }
2129 }
2130
2131 static void DrawSizers(wxWindowBase *win)
2132 {
2133     wxSizer *sizer = win->GetSizer();
2134     if ( sizer )
2135     {
2136         DrawBorder(win, win->GetClientSize());
2137         DrawSizer(win, sizer);
2138     }
2139     else // no sizer, still recurse into the children
2140     {
2141         const wxWindowList& children = win->GetChildren();
2142         for ( wxWindowList::const_iterator i = children.begin(),
2143                                          end = children.end();
2144               i != end;
2145               ++i )
2146         {
2147             DrawSizers(*i);
2148         }
2149     }
2150 }
2151
2152 #endif // __WXDEBUG__
2153
2154 // process special middle clicks
2155 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2156 {
2157     if ( event.ControlDown() && event.AltDown() )
2158     {
2159 #ifdef __WXDEBUG__
2160         // Ctrl-Alt-Shift-mclick makes the sizers visible in debug builds
2161         if ( event.ShiftDown() )
2162         {
2163             DrawSizers(this);
2164             return;
2165         }
2166 #endif // __WXDEBUG__
2167
2168 #if wxUSE_MSGDLG
2169         // don't translate these strings, they're for diagnostics purposes only
2170         wxString msg;
2171         msg.Printf(_T("wxWidgets Library (%s port)\n")
2172                    _T("Version %d.%d.%d%s%s, compiled at %s %s%s\n")
2173                    _T("Copyright (c) 1995-2006 wxWidgets team"),
2174                    wxPlatformInfo().GetPortIdName().c_str(),
2175                    wxMAJOR_VERSION,
2176                    wxMINOR_VERSION,
2177                    wxRELEASE_NUMBER,
2178 #if wxUSE_UNICODE
2179                    L" (Unicode)",
2180 #else
2181                    wxEmptyString,
2182 #endif
2183 #ifdef __WXDEBUG__
2184                    _T(" Debug build"),
2185 #else
2186                    wxEmptyString,
2187 #endif
2188                    __TDATE__,
2189                    __TTIME__,
2190 #ifdef __WXGTK__
2191                    wxString::Format(_T("\nagainst GTK+ %d.%d.%d. Runtime GTK+ version: %d.%d.%d"), GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION, gtk_major_version, gtk_minor_version, gtk_micro_version).c_str()
2192 #else
2193                    wxEmptyString
2194 #endif
2195                    );
2196
2197         wxMessageBox(msg, _T("wxWidgets information"),
2198                      wxICON_INFORMATION | wxOK,
2199                      (wxWindow *)this);
2200     }
2201     else
2202 #endif // wxUSE_MSGDLG
2203     {
2204         event.Skip();
2205     }
2206 }
2207
2208 // ----------------------------------------------------------------------------
2209 // accessibility
2210 // ----------------------------------------------------------------------------
2211
2212 #if wxUSE_ACCESSIBILITY
2213 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2214 {
2215     if (m_accessible && (accessible != m_accessible))
2216         delete m_accessible;
2217     m_accessible = accessible;
2218     if (m_accessible)
2219         m_accessible->SetWindow((wxWindow*) this);
2220 }
2221
2222 // Returns the accessible object, creating if necessary.
2223 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2224 {
2225     if (!m_accessible)
2226         m_accessible = CreateAccessible();
2227     return m_accessible;
2228 }
2229
2230 // Override to create a specific accessible object.
2231 wxAccessible* wxWindowBase::CreateAccessible()
2232 {
2233     return new wxWindowAccessible((wxWindow*) this);
2234 }
2235
2236 #endif
2237
2238 // ----------------------------------------------------------------------------
2239 // list classes implementation
2240 // ----------------------------------------------------------------------------
2241
2242 #if wxUSE_STL
2243
2244 #include "wx/listimpl.cpp"
2245 WX_DEFINE_LIST(wxWindowList)
2246
2247 #else
2248
2249 void wxWindowListNode::DeleteData()
2250 {
2251     delete (wxWindow *)GetData();
2252 }
2253
2254 #endif
2255
2256 // ----------------------------------------------------------------------------
2257 // borders
2258 // ----------------------------------------------------------------------------
2259
2260 wxBorder wxWindowBase::GetBorder(long flags) const
2261 {
2262     wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2263     if ( border == wxBORDER_DEFAULT )
2264     {
2265         border = GetDefaultBorder();
2266     }
2267
2268     return border;
2269 }
2270
2271 wxBorder wxWindowBase::GetDefaultBorder() const
2272 {
2273     return wxBORDER_NONE;
2274 }
2275
2276 // ----------------------------------------------------------------------------
2277 // hit testing
2278 // ----------------------------------------------------------------------------
2279
2280 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2281 {
2282     // here we just check if the point is inside the window or not
2283
2284     // check the top and left border first
2285     bool outside = x < 0 || y < 0;
2286     if ( !outside )
2287     {
2288         // check the right and bottom borders too
2289         wxSize size = GetSize();
2290         outside = x >= size.x || y >= size.y;
2291     }
2292
2293     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2294 }
2295
2296 // ----------------------------------------------------------------------------
2297 // mouse capture
2298 // ----------------------------------------------------------------------------
2299
2300 struct WXDLLEXPORT wxWindowNext
2301 {
2302     wxWindow *win;
2303     wxWindowNext *next;
2304 } *wxWindowBase::ms_winCaptureNext = NULL;
2305 wxWindow *wxWindowBase::ms_winCaptureCurrent = NULL;
2306 bool wxWindowBase::ms_winCaptureChanging = false;
2307
2308 void wxWindowBase::CaptureMouse()
2309 {
2310     wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), wx_static_cast(void*, this));
2311
2312     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive CaptureMouse call?") );
2313
2314     ms_winCaptureChanging = true;
2315
2316     wxWindow *winOld = GetCapture();
2317     if ( winOld )
2318     {
2319         ((wxWindowBase*) winOld)->DoReleaseMouse();
2320
2321         // save it on stack
2322         wxWindowNext *item = new wxWindowNext;
2323         item->win = winOld;
2324         item->next = ms_winCaptureNext;
2325         ms_winCaptureNext = item;
2326     }
2327     //else: no mouse capture to save
2328
2329     DoCaptureMouse();
2330     ms_winCaptureCurrent = (wxWindow*)this;
2331
2332     ms_winCaptureChanging = false;
2333 }
2334
2335 void wxWindowBase::ReleaseMouse()
2336 {
2337     wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), wx_static_cast(void*, this));
2338
2339     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive ReleaseMouse call?") );
2340
2341     wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2342
2343     ms_winCaptureChanging = true;
2344
2345     DoReleaseMouse();
2346     ms_winCaptureCurrent = NULL;
2347
2348     if ( ms_winCaptureNext )
2349     {
2350         ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2351         ms_winCaptureCurrent = ms_winCaptureNext->win;
2352
2353         wxWindowNext *item = ms_winCaptureNext;
2354         ms_winCaptureNext = item->next;
2355         delete item;
2356     }
2357     //else: stack is empty, no previous capture
2358
2359     ms_winCaptureChanging = false;
2360
2361     wxLogTrace(_T("mousecapture"),
2362         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2363         wx_static_cast(void*, GetCapture()));
2364 }
2365
2366 static void DoNotifyWindowAboutCaptureLost(wxWindow *win)
2367 {
2368     wxMouseCaptureLostEvent event(win->GetId());
2369     event.SetEventObject(win);
2370     if ( !win->GetEventHandler()->ProcessEvent(event) )
2371     {
2372         wxFAIL_MSG( _T("window that captured the mouse didn't process wxEVT_MOUSE_CAPTURE_LOST") );
2373     }
2374 }
2375
2376 /* static */
2377 void wxWindowBase::NotifyCaptureLost()
2378 {
2379     // don't do anything if capture lost was expected, i.e. resulted from
2380     // a wx call to ReleaseMouse or CaptureMouse:
2381     if ( ms_winCaptureChanging )
2382         return;
2383
2384     // if the capture was lost unexpectedly, notify every window that has
2385     // capture (on stack or current) about it and clear the stack:
2386
2387     if ( ms_winCaptureCurrent )
2388     {
2389         DoNotifyWindowAboutCaptureLost(ms_winCaptureCurrent);
2390         ms_winCaptureCurrent = NULL;
2391     }
2392
2393     while ( ms_winCaptureNext )
2394     {
2395         wxWindowNext *item = ms_winCaptureNext;
2396         ms_winCaptureNext = item->next;
2397
2398         DoNotifyWindowAboutCaptureLost(item->win);
2399
2400         delete item;
2401     }
2402 }
2403
2404 #if wxUSE_HOTKEY
2405
2406 bool
2407 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2408                              int WXUNUSED(modifiers),
2409                              int WXUNUSED(keycode))
2410 {
2411     // not implemented
2412     return false;
2413 }
2414
2415 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2416 {
2417     // not implemented
2418     return false;
2419 }
2420
2421 #endif // wxUSE_HOTKEY
2422
2423 void wxWindowBase::SendDestroyEvent()
2424 {
2425     wxWindowDestroyEvent event;
2426     event.SetEventObject(this);
2427     event.SetId(GetId());
2428     GetEventHandler()->ProcessEvent(event);
2429 }
2430
2431 // ----------------------------------------------------------------------------
2432 // event processing
2433 // ----------------------------------------------------------------------------
2434
2435 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2436 {
2437 #if wxUSE_VALIDATORS
2438     // Can only use the validator of the window which
2439     // is receiving the event
2440     if ( event.GetEventObject() == this )
2441     {
2442         wxValidator *validator = GetValidator();
2443         if ( validator && validator->ProcessEvent(event) )
2444         {
2445             return true;
2446         }
2447     }
2448 #endif // wxUSE_VALIDATORS
2449
2450     return false;
2451 }
2452
2453 bool wxWindowBase::TryParent(wxEvent& event)
2454 {
2455     // carry on up the parent-child hierarchy if the propagation count hasn't
2456     // reached zero yet
2457     if ( event.ShouldPropagate() )
2458     {
2459         // honour the requests to stop propagation at this window: this is
2460         // used by the dialogs, for example, to prevent processing the events
2461         // from the dialog controls in the parent frame which rarely, if ever,
2462         // makes sense
2463         if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2464         {
2465             wxWindow *parent = GetParent();
2466             if ( parent && !parent->IsBeingDeleted() )
2467             {
2468                 wxPropagateOnce propagateOnce(event);
2469
2470                 return parent->GetEventHandler()->ProcessEvent(event);
2471             }
2472         }
2473     }
2474
2475     return wxEvtHandler::TryParent(event);
2476 }
2477
2478 // ----------------------------------------------------------------------------
2479 // keyboard navigation
2480 // ----------------------------------------------------------------------------
2481
2482 // Navigates in the specified direction.
2483 bool wxWindowBase::Navigate(int flags)
2484 {
2485     wxNavigationKeyEvent eventNav;
2486     eventNav.SetFlags(flags);
2487     eventNav.SetEventObject(this);
2488     if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2489     {
2490         return true;
2491     }
2492     return false;
2493 }
2494
2495 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2496 {
2497     // check that we're not a top level window
2498     wxCHECK_RET( GetParent(),
2499                     _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2500
2501     // detect the special case when we have nothing to do anyhow and when the
2502     // code below wouldn't work
2503     if ( win == this )
2504         return;
2505
2506     // find the target window in the siblings list
2507     wxWindowList& siblings = GetParent()->GetChildren();
2508     wxWindowList::compatibility_iterator i = siblings.Find(win);
2509     wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2510
2511     // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2512     // can't just move the node around
2513     wxWindow *self = (wxWindow *)this;
2514     siblings.DeleteObject(self);
2515     if ( move == MoveAfter )
2516     {
2517         i = i->GetNext();
2518     }
2519
2520     if ( i )
2521     {
2522         siblings.Insert(i, self);
2523     }
2524     else // MoveAfter and win was the last sibling
2525     {
2526         siblings.Append(self);
2527     }
2528 }
2529
2530 // ----------------------------------------------------------------------------
2531 // focus handling
2532 // ----------------------------------------------------------------------------
2533
2534 /*static*/ wxWindow* wxWindowBase::FindFocus()
2535 {
2536     wxWindowBase *win = DoFindFocus();
2537     return win ? win->GetMainWindowOfCompositeControl() : NULL;
2538 }
2539
2540 // ----------------------------------------------------------------------------
2541 // global functions
2542 // ----------------------------------------------------------------------------
2543
2544 wxWindow* wxGetTopLevelParent(wxWindow *win)
2545 {
2546     while ( win && !win->IsTopLevel() )
2547          win = win->GetParent();
2548
2549     return win;
2550 }
2551
2552 #if wxUSE_ACCESSIBILITY
2553 // ----------------------------------------------------------------------------
2554 // accessible object for windows
2555 // ----------------------------------------------------------------------------
2556
2557 // Can return either a child object, or an integer
2558 // representing the child element, starting from 1.
2559 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2560 {
2561     wxASSERT( GetWindow() != NULL );
2562     if (!GetWindow())
2563         return wxACC_FAIL;
2564
2565     return wxACC_NOT_IMPLEMENTED;
2566 }
2567
2568 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2569 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2570 {
2571     wxASSERT( GetWindow() != NULL );
2572     if (!GetWindow())
2573         return wxACC_FAIL;
2574
2575     wxWindow* win = NULL;
2576     if (elementId == 0)
2577     {
2578         win = GetWindow();
2579     }
2580     else
2581     {
2582         if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2583         {
2584             win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2585         }
2586         else
2587             return wxACC_FAIL;
2588     }
2589     if (win)
2590     {
2591         rect = win->GetRect();
2592         if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2593             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2594         return wxACC_OK;
2595     }
2596
2597     return wxACC_NOT_IMPLEMENTED;
2598 }
2599
2600 // Navigates from fromId to toId/toObject.
2601 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2602                              int* WXUNUSED(toId), wxAccessible** toObject)
2603 {
2604     wxASSERT( GetWindow() != NULL );
2605     if (!GetWindow())
2606         return wxACC_FAIL;
2607
2608     switch (navDir)
2609     {
2610     case wxNAVDIR_FIRSTCHILD:
2611         {
2612             if (GetWindow()->GetChildren().GetCount() == 0)
2613                 return wxACC_FALSE;
2614             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2615             *toObject = childWindow->GetOrCreateAccessible();
2616
2617             return wxACC_OK;
2618         }
2619     case wxNAVDIR_LASTCHILD:
2620         {
2621             if (GetWindow()->GetChildren().GetCount() == 0)
2622                 return wxACC_FALSE;
2623             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2624             *toObject = childWindow->GetOrCreateAccessible();
2625
2626             return wxACC_OK;
2627         }
2628     case wxNAVDIR_RIGHT:
2629     case wxNAVDIR_DOWN:
2630     case wxNAVDIR_NEXT:
2631         {
2632             wxWindowList::compatibility_iterator node =
2633                 wxWindowList::compatibility_iterator();
2634             if (fromId == 0)
2635             {
2636                 // Can't navigate to sibling of this window
2637                 // if we're a top-level window.
2638                 if (!GetWindow()->GetParent())
2639                     return wxACC_NOT_IMPLEMENTED;
2640
2641                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2642             }
2643             else
2644             {
2645                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2646                     node = GetWindow()->GetChildren().Item(fromId-1);
2647             }
2648
2649             if (node && node->GetNext())
2650             {
2651                 wxWindow* nextWindow = node->GetNext()->GetData();
2652                 *toObject = nextWindow->GetOrCreateAccessible();
2653                 return wxACC_OK;
2654             }
2655             else
2656                 return wxACC_FALSE;
2657         }
2658     case wxNAVDIR_LEFT:
2659     case wxNAVDIR_UP:
2660     case wxNAVDIR_PREVIOUS:
2661         {
2662             wxWindowList::compatibility_iterator node =
2663                 wxWindowList::compatibility_iterator();
2664             if (fromId == 0)
2665             {
2666                 // Can't navigate to sibling of this window
2667                 // if we're a top-level window.
2668                 if (!GetWindow()->GetParent())
2669                     return wxACC_NOT_IMPLEMENTED;
2670
2671                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2672             }
2673             else
2674             {
2675                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2676                     node = GetWindow()->GetChildren().Item(fromId-1);
2677             }
2678
2679             if (node && node->GetPrevious())
2680             {
2681                 wxWindow* previousWindow = node->GetPrevious()->GetData();
2682                 *toObject = previousWindow->GetOrCreateAccessible();
2683                 return wxACC_OK;
2684             }
2685             else
2686                 return wxACC_FALSE;
2687         }
2688     }
2689
2690     return wxACC_NOT_IMPLEMENTED;
2691 }
2692
2693 // Gets the name of the specified object.
2694 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2695 {
2696     wxASSERT( GetWindow() != NULL );
2697     if (!GetWindow())
2698         return wxACC_FAIL;
2699
2700     wxString title;
2701
2702     // If a child, leave wxWidgets to call the function on the actual
2703     // child object.
2704     if (childId > 0)
2705         return wxACC_NOT_IMPLEMENTED;
2706
2707     // This will eventually be replaced by specialised
2708     // accessible classes, one for each kind of wxWidgets
2709     // control or window.
2710 #if wxUSE_BUTTON
2711     if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2712         title = ((wxButton*) GetWindow())->GetLabel();
2713     else
2714 #endif
2715         title = GetWindow()->GetName();
2716
2717     if (!title.empty())
2718     {
2719         *name = title;
2720         return wxACC_OK;
2721     }
2722     else
2723         return wxACC_NOT_IMPLEMENTED;
2724 }
2725
2726 // Gets the number of children.
2727 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2728 {
2729     wxASSERT( GetWindow() != NULL );
2730     if (!GetWindow())
2731         return wxACC_FAIL;
2732
2733     *childId = (int) GetWindow()->GetChildren().GetCount();
2734     return wxACC_OK;
2735 }
2736
2737 // Gets the specified child (starting from 1).
2738 // If *child is NULL and return value is wxACC_OK,
2739 // this means that the child is a simple element and
2740 // not an accessible object.
2741 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2742 {
2743     wxASSERT( GetWindow() != NULL );
2744     if (!GetWindow())
2745         return wxACC_FAIL;
2746
2747     if (childId == 0)
2748     {
2749         *child = this;
2750         return wxACC_OK;
2751     }
2752
2753     if (childId > (int) GetWindow()->GetChildren().GetCount())
2754         return wxACC_FAIL;
2755
2756     wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2757     *child = childWindow->GetOrCreateAccessible();
2758     if (*child)
2759         return wxACC_OK;
2760     else
2761         return wxACC_FAIL;
2762 }
2763
2764 // Gets the parent, or NULL.
2765 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2766 {
2767     wxASSERT( GetWindow() != NULL );
2768     if (!GetWindow())
2769         return wxACC_FAIL;
2770
2771     wxWindow* parentWindow = GetWindow()->GetParent();
2772     if (!parentWindow)
2773     {
2774         *parent = NULL;
2775         return wxACC_OK;
2776     }
2777     else
2778     {
2779         *parent = parentWindow->GetOrCreateAccessible();
2780         if (*parent)
2781             return wxACC_OK;
2782         else
2783             return wxACC_FAIL;
2784     }
2785 }
2786
2787 // Performs the default action. childId is 0 (the action for this object)
2788 // or > 0 (the action for a child).
2789 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2790 // window (e.g. an edit control).
2791 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2792 {
2793     wxASSERT( GetWindow() != NULL );
2794     if (!GetWindow())
2795         return wxACC_FAIL;
2796
2797     return wxACC_NOT_IMPLEMENTED;
2798 }
2799
2800 // Gets the default action for this object (0) or > 0 (the action for a child).
2801 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2802 // string if there is no action.
2803 // The retrieved string describes the action that is performed on an object,
2804 // not what the object does as a result. For example, a toolbar button that prints
2805 // a document has a default action of "Press" rather than "Prints the current document."
2806 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2807 {
2808     wxASSERT( GetWindow() != NULL );
2809     if (!GetWindow())
2810         return wxACC_FAIL;
2811
2812     return wxACC_NOT_IMPLEMENTED;
2813 }
2814
2815 // Returns the description for this object or a child.
2816 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2817 {
2818     wxASSERT( GetWindow() != NULL );
2819     if (!GetWindow())
2820         return wxACC_FAIL;
2821
2822     wxString ht(GetWindow()->GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Keyboard));
2823     if (!ht.empty())
2824     {
2825         *description = ht;
2826         return wxACC_OK;
2827     }
2828     return wxACC_NOT_IMPLEMENTED;
2829 }
2830
2831 // Returns help text for this object or a child, similar to tooltip text.
2832 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2833 {
2834     wxASSERT( GetWindow() != NULL );
2835     if (!GetWindow())
2836         return wxACC_FAIL;
2837
2838     wxString ht(GetWindow()->GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Keyboard));
2839     if (!ht.empty())
2840     {
2841         *helpText = ht;
2842         return wxACC_OK;
2843     }
2844     return wxACC_NOT_IMPLEMENTED;
2845 }
2846
2847 // Returns the keyboard shortcut for this object or child.
2848 // Return e.g. ALT+K
2849 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2850 {
2851     wxASSERT( GetWindow() != NULL );
2852     if (!GetWindow())
2853         return wxACC_FAIL;
2854
2855     return wxACC_NOT_IMPLEMENTED;
2856 }
2857
2858 // Returns a role constant.
2859 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2860 {
2861     wxASSERT( GetWindow() != NULL );
2862     if (!GetWindow())
2863         return wxACC_FAIL;
2864
2865     // If a child, leave wxWidgets to call the function on the actual
2866     // child object.
2867     if (childId > 0)
2868         return wxACC_NOT_IMPLEMENTED;
2869
2870     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2871         return wxACC_NOT_IMPLEMENTED;
2872 #if wxUSE_STATUSBAR
2873     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2874         return wxACC_NOT_IMPLEMENTED;
2875 #endif
2876 #if wxUSE_TOOLBAR
2877     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2878         return wxACC_NOT_IMPLEMENTED;
2879 #endif
2880
2881     //*role = wxROLE_SYSTEM_CLIENT;
2882     *role = wxROLE_SYSTEM_CLIENT;
2883     return wxACC_OK;
2884
2885     #if 0
2886     return wxACC_NOT_IMPLEMENTED;
2887     #endif
2888 }
2889
2890 // Returns a state constant.
2891 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2892 {
2893     wxASSERT( GetWindow() != NULL );
2894     if (!GetWindow())
2895         return wxACC_FAIL;
2896
2897     // If a child, leave wxWidgets to call the function on the actual
2898     // child object.
2899     if (childId > 0)
2900         return wxACC_NOT_IMPLEMENTED;
2901
2902     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2903         return wxACC_NOT_IMPLEMENTED;
2904
2905 #if wxUSE_STATUSBAR
2906     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2907         return wxACC_NOT_IMPLEMENTED;
2908 #endif
2909 #if wxUSE_TOOLBAR
2910     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2911         return wxACC_NOT_IMPLEMENTED;
2912 #endif
2913
2914     *state = 0;
2915     return wxACC_OK;
2916
2917     #if 0
2918     return wxACC_NOT_IMPLEMENTED;
2919     #endif
2920 }
2921
2922 // Returns a localized string representing the value for the object
2923 // or child.
2924 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2925 {
2926     wxASSERT( GetWindow() != NULL );
2927     if (!GetWindow())
2928         return wxACC_FAIL;
2929
2930     return wxACC_NOT_IMPLEMENTED;
2931 }
2932
2933 // Selects the object or child.
2934 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2935 {
2936     wxASSERT( GetWindow() != NULL );
2937     if (!GetWindow())
2938         return wxACC_FAIL;
2939
2940     return wxACC_NOT_IMPLEMENTED;
2941 }
2942
2943 // Gets the window with the keyboard focus.
2944 // If childId is 0 and child is NULL, no object in
2945 // this subhierarchy has the focus.
2946 // If this object has the focus, child should be 'this'.
2947 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2948 {
2949     wxASSERT( GetWindow() != NULL );
2950     if (!GetWindow())
2951         return wxACC_FAIL;
2952
2953     return wxACC_NOT_IMPLEMENTED;
2954 }
2955
2956 // Gets a variant representing the selected children
2957 // of this object.
2958 // Acceptable values:
2959 // - a null variant (IsNull() returns true)
2960 // - a list variant (GetType() == wxT("list")
2961 // - an integer representing the selected child element,
2962 //   or 0 if this object is selected (GetType() == wxT("long")
2963 // - a "void*" pointer to a wxAccessible child object
2964 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
2965 {
2966     wxASSERT( GetWindow() != NULL );
2967     if (!GetWindow())
2968         return wxACC_FAIL;
2969
2970     return wxACC_NOT_IMPLEMENTED;
2971 }
2972
2973 #endif // wxUSE_ACCESSIBILITY