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 bool wxWindowBase::IsVisible() const
 749 {
 750     return IsShown() && (GetParent() == NULL || GetParent()->IsVisible());
 751 }
 752
 753 // ----------------------------------------------------------------------------
 754 // RTTI
 755 // ----------------------------------------------------------------------------
 756
 757 bool wxWindowBase::IsTopLevel() const
 758 {
 759     return false;
 760 }
 761
 762 // ----------------------------------------------------------------------------
 763 // reparenting the window
 764 // ----------------------------------------------------------------------------
 765
 766 void wxWindowBase::AddChild(wxWindowBase *child)
 767 {
 768     wxCHECK_RET( child, wxT("can't add a NULL child") );
 769
 770     // this should never happen and it will lead to a crash later if it does
 771     // because RemoveChild() will remove only one node from the children list
 772     // and the other(s) one(s) will be left with dangling pointers in them
 773     wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
 774
 775     GetChildren().Append((wxWindow*)child);
 776     child->SetParent(this);
 777 }
 778
 779 void wxWindowBase::RemoveChild(wxWindowBase *child)
 780 {
 781     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 782
 783     GetChildren().DeleteObject((wxWindow *)child);
 784     child->SetParent(NULL);
 785 }
 786
 787 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 788 {
 789     wxWindow *oldParent = GetParent();
 790     if ( newParent == oldParent )
 791     {
 792         // nothing done
 793         return false;
 794     }
 795
 796     // unlink this window from the existing parent.
 797     if ( oldParent )
 798     {
 799         oldParent->RemoveChild(this);
 800     }
 801     else
 802     {
 803         wxTopLevelWindows.DeleteObject((wxWindow *)this);
 804     }
 805
 806     // add it to the new one
 807     if ( newParent )
 808     {
 809         newParent->AddChild(this);
 810     }
 811     else
 812     {
 813         wxTopLevelWindows.Append((wxWindow *)this);
 814     }
 815
 816     return true;
 817 }
 818
 819 // ----------------------------------------------------------------------------
 820 // event handler stuff
 821 // ----------------------------------------------------------------------------
 822
 823 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
 824 {
 825     wxEvtHandler *handlerOld = GetEventHandler();
 826
 827     handler->SetNextHandler(handlerOld);
 828
 829     if ( handlerOld )
 830         GetEventHandler()->SetPreviousHandler(handler);
 831
 832     SetEventHandler(handler);
 833 }
 834
 835 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 836 {
 837     wxEvtHandler *handlerA = GetEventHandler();
 838     if ( handlerA )
 839     {
 840         wxEvtHandler *handlerB = handlerA->GetNextHandler();
 841         handlerA->SetNextHandler((wxEvtHandler *)NULL);
 842
 843         if ( handlerB )
 844             handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
 845         SetEventHandler(handlerB);
 846
 847         if ( deleteHandler )
 848         {
 849             delete handlerA;
 850             handlerA = (wxEvtHandler *)NULL;
 851         }
 852     }
 853
 854     return handlerA;
 855 }
 856
 857 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
 858 {
 859     wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
 860
 861     wxEvtHandler *handlerPrev = NULL,
 862                  *handlerCur = GetEventHandler();
 863     while ( handlerCur )
 864     {
 865         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 866
 867         if ( handlerCur == handler )
 868         {
 869             if ( handlerPrev )
 870             {
 871                 handlerPrev->SetNextHandler(handlerNext);
 872             }
 873             else
 874             {
 875                 SetEventHandler(handlerNext);
 876             }
 877
 878             if ( handlerNext )
 879             {
 880                 handlerNext->SetPreviousHandler ( handlerPrev );
 881             }
 882
 883             handler->SetNextHandler(NULL);
 884             handler->SetPreviousHandler(NULL);
 885
 886             return true;
 887         }
 888
 889         handlerPrev = handlerCur;
 890         handlerCur = handlerNext;
 891     }
 892
 893     wxFAIL_MSG( _T("where has the event handler gone?") );
 894
 895     return false;
 896 }
 897
 898 // ----------------------------------------------------------------------------
 899 // colours, fonts &c
 900 // ----------------------------------------------------------------------------
 901
 902 void wxWindowBase::InheritAttributes()
 903 {
 904     const wxWindowBase * const parent = GetParent();
 905     if ( !parent )
 906         return;
 907
 908     // we only inherit attributes which had been explicitly set for the parent
 909     // which ensures that this only happens if the user really wants it and
 910     // not by default which wouldn't make any sense in modern GUIs where the
 911     // controls don't all use the same fonts (nor colours)
 912     if ( parent->m_inheritFont && !m_hasFont )
 913         SetFont(parent->GetFont());
 914
 915     // in addition, there is a possibility to explicitly forbid inheriting
 916     // colours at each class level by overriding ShouldInheritColours()
 917     if ( ShouldInheritColours() )
 918     {
 919         if ( parent->m_inheritFgCol && !m_hasFgCol )
 920             SetForegroundColour(parent->GetForegroundColour());
 921
 922         // inheriting (solid) background colour is wrong as it totally breaks
 923         // any kind of themed backgrounds
 924         //
 925         // instead, the controls should use the same background as their parent
 926         // (ideally by not drawing it at all)
 927 #if 0
 928         if ( parent->m_inheritBgCol && !m_hasBgCol )
 929             SetBackgroundColour(parent->GetBackgroundColour());
 930 #endif // 0
 931     }
 932 }
 933
 934 /* static */ wxVisualAttributes
 935 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 936 {
 937     // it is important to return valid values for all attributes from here,
 938     // GetXXX() below rely on this
 939     wxVisualAttributes attrs;
 940     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 941     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
 942
 943     // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
 944     // the usual background colour than wxSYS_COLOUR_BTNFACE.
 945     // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
 946     // colour on other platforms.
 947
 948 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
 949     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
 950 #else
 951     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
 952 #endif
 953     return attrs;
 954 }
 955
 956 wxColour wxWindowBase::GetBackgroundColour() const
 957 {
 958     if ( !m_backgroundColour.Ok() )
 959     {
 960         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
 961
 962         // get our default background colour
 963         wxColour colBg = GetDefaultAttributes().colBg;
 964
 965         // we must return some valid colour to avoid redoing this every time
 966         // and also to avoid surprizing the applications written for older
 967         // wxWidgets versions where GetBackgroundColour() always returned
 968         // something -- so give them something even if it doesn't make sense
 969         // for this window (e.g. it has a themed background)
 970         if ( !colBg.Ok() )
 971             colBg = GetClassDefaultAttributes().colBg;
 972
 973         return colBg;
 974     }
 975     else
 976         return m_backgroundColour;
 977 }
 978
 979 wxColour wxWindowBase::GetForegroundColour() const
 980 {
 981     // logic is the same as above
 982     if ( !m_hasFgCol && !m_foregroundColour.Ok() )
 983     {
 984         wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
 985
 986         wxColour colFg = GetDefaultAttributes().colFg;
 987
 988         if ( !colFg.Ok() )
 989             colFg = GetClassDefaultAttributes().colFg;
 990
 991         return colFg;
 992     }
 993     else
 994         return m_foregroundColour;
 995 }
 996
 997 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
 998 {
 999     if ( colour == m_backgroundColour )
1000         return false;
1001
1002     m_hasBgCol = colour.Ok();
1003     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
1004         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
1005
1006     m_inheritBgCol = m_hasBgCol;
1007     m_backgroundColour = colour;
1008     SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1009     return true;
1010 }
1011
1012 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1013 {
1014     if (colour == m_foregroundColour )
1015         return false;
1016
1017     m_hasFgCol = colour.Ok();
1018     m_inheritFgCol = m_hasFgCol;
1019     m_foregroundColour = colour;
1020     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1021     return true;
1022 }
1023
1024 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1025 {
1026     // setting an invalid cursor is ok, it means that we don't have any special
1027     // cursor
1028     if ( m_cursor == cursor )
1029     {
1030         // no change
1031         return false;
1032     }
1033
1034     m_cursor = cursor;
1035
1036     return true;
1037 }
1038
1039 wxFont wxWindowBase::GetFont() const
1040 {
1041     // logic is the same as in GetBackgroundColour()
1042     if ( !m_font.Ok() )
1043     {
1044         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1045
1046         wxFont font = GetDefaultAttributes().font;
1047         if ( !font.Ok() )
1048             font = GetClassDefaultAttributes().font;
1049
1050         return font;
1051     }
1052     else
1053         return m_font;
1054 }
1055
1056 bool wxWindowBase::SetFont(const wxFont& font)
1057 {
1058     if ( font == m_font )
1059     {
1060         // no change
1061         return false;
1062     }
1063
1064     m_font = font;
1065     m_hasFont = font.Ok();
1066     m_inheritFont = m_hasFont;
1067
1068     InvalidateBestSize();
1069
1070     return true;
1071 }
1072
1073 #if wxUSE_PALETTE
1074
1075 void wxWindowBase::SetPalette(const wxPalette& pal)
1076 {
1077     m_hasCustomPalette = true;
1078     m_palette = pal;
1079
1080     // VZ: can anyone explain me what do we do here?
1081     wxWindowDC d((wxWindow *) this);
1082     d.SetPalette(pal);
1083 }
1084
1085 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1086 {
1087     wxWindow *win = (wxWindow *)this;
1088     while ( win && !win->HasCustomPalette() )
1089     {
1090         win = win->GetParent();
1091     }
1092
1093     return win;
1094 }
1095
1096 #endif // wxUSE_PALETTE
1097
1098 #if wxUSE_CARET
1099 void wxWindowBase::SetCaret(wxCaret *caret)
1100 {
1101     if ( m_caret )
1102     {
1103         delete m_caret;
1104     }
1105
1106     m_caret = caret;
1107
1108     if ( m_caret )
1109     {
1110         wxASSERT_MSG( m_caret->GetWindow() == this,
1111                       wxT("caret should be created associated to this window") );
1112     }
1113 }
1114 #endif // wxUSE_CARET
1115
1116 #if wxUSE_VALIDATORS
1117 // ----------------------------------------------------------------------------
1118 // validators
1119 // ----------------------------------------------------------------------------
1120
1121 void wxWindowBase::SetValidator(const wxValidator& validator)
1122 {
1123     if ( m_windowValidator )
1124         delete m_windowValidator;
1125
1126     m_windowValidator = (wxValidator *)validator.Clone();
1127
1128     if ( m_windowValidator )
1129         m_windowValidator->SetWindow(this);
1130 }
1131 #endif // wxUSE_VALIDATORS
1132
1133 // ----------------------------------------------------------------------------
1134 // update region stuff
1135 // ----------------------------------------------------------------------------
1136
1137 wxRect wxWindowBase::GetUpdateClientRect() const
1138 {
1139     wxRegion rgnUpdate = GetUpdateRegion();
1140     rgnUpdate.Intersect(GetClientRect());
1141     wxRect rectUpdate = rgnUpdate.GetBox();
1142     wxPoint ptOrigin = GetClientAreaOrigin();
1143     rectUpdate.x -= ptOrigin.x;
1144     rectUpdate.y -= ptOrigin.y;
1145
1146     return rectUpdate;
1147 }
1148
1149 bool wxWindowBase::DoIsExposed(int x, int y) const
1150 {
1151     return m_updateRegion.Contains(x, y) != wxOutRegion;
1152 }
1153
1154 bool wxWindowBase::DoIsExposed(int x, int y, int w, int h) const
1155 {
1156     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1157 }
1158
1159 void wxWindowBase::ClearBackground()
1160 {
1161     // wxGTK uses its own version, no need to add never used code
1162 #ifndef __WXGTK__
1163     wxClientDC dc((wxWindow *)this);
1164     wxBrush brush(GetBackgroundColour(), wxSOLID);
1165     dc.SetBackground(brush);
1166     dc.Clear();
1167 #endif // __WXGTK__
1168 }
1169
1170 // ----------------------------------------------------------------------------
1171 // find child window by id or name
1172 // ----------------------------------------------------------------------------
1173
1174 wxWindow *wxWindowBase::FindWindow(long id) const
1175 {
1176     if ( id == m_windowId )
1177         return (wxWindow *)this;
1178
1179     wxWindowBase *res = (wxWindow *)NULL;
1180     wxWindowList::compatibility_iterator node;
1181     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1182     {
1183         wxWindowBase *child = node->GetData();
1184         res = child->FindWindow( id );
1185     }
1186
1187     return (wxWindow *)res;
1188 }
1189
1190 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1191 {
1192     if ( name == m_windowName )
1193         return (wxWindow *)this;
1194
1195     wxWindowBase *res = (wxWindow *)NULL;
1196     wxWindowList::compatibility_iterator node;
1197     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1198     {
1199         wxWindow *child = node->GetData();
1200         res = child->FindWindow(name);
1201     }
1202
1203     return (wxWindow *)res;
1204 }
1205
1206
1207 // find any window by id or name or label: If parent is non-NULL, look through
1208 // children for a label or title matching the specified string. If NULL, look
1209 // through all top-level windows.
1210 //
1211 // to avoid duplicating code we reuse the same helper function but with
1212 // different comparators
1213
1214 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1215                                 const wxString& label, long id);
1216
1217 static
1218 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1219                            long WXUNUSED(id))
1220 {
1221     return win->GetLabel() == label;
1222 }
1223
1224 static
1225 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1226                           long WXUNUSED(id))
1227 {
1228     return win->GetName() == label;
1229 }
1230
1231 static
1232 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1233                         long id)
1234 {
1235     return win->GetId() == id;
1236 }
1237
1238 // recursive helper for the FindWindowByXXX() functions
1239 static
1240 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1241                                   const wxString& label,
1242                                   long id,
1243                                   wxFindWindowCmp cmp)
1244 {
1245     if ( parent )
1246     {
1247         // see if this is the one we're looking for
1248         if ( (*cmp)(parent, label, id) )
1249             return (wxWindow *)parent;
1250
1251         // It wasn't, so check all its children
1252         for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1253               node;
1254               node = node->GetNext() )
1255         {
1256             // recursively check each child
1257             wxWindow *win = (wxWindow *)node->GetData();
1258             wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1259             if (retwin)
1260                 return retwin;
1261         }
1262     }
1263
1264     // Not found
1265     return NULL;
1266 }
1267
1268 // helper for FindWindowByXXX()
1269 static
1270 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1271                              const wxString& label,
1272                              long id,
1273                              wxFindWindowCmp cmp)
1274 {
1275     if ( parent )
1276     {
1277         // just check parent and all its children
1278         return wxFindWindowRecursively(parent, label, id, cmp);
1279     }
1280
1281     // start at very top of wx's windows
1282     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1283           node;
1284           node = node->GetNext() )
1285     {
1286         // recursively check each window & its children
1287         wxWindow *win = node->GetData();
1288         wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1289         if (retwin)
1290             return retwin;
1291     }
1292
1293     return NULL;
1294 }
1295
1296 /* static */
1297 wxWindow *
1298 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1299 {
1300     return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1301 }
1302
1303 /* static */
1304 wxWindow *
1305 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1306 {
1307     wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1308
1309     if ( !win )
1310     {
1311         // fall back to the label
1312         win = FindWindowByLabel(title, parent);
1313     }
1314
1315     return win;
1316 }
1317
1318 /* static */
1319 wxWindow *
1320 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1321 {
1322     return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1323 }
1324
1325 // ----------------------------------------------------------------------------
1326 // dialog oriented functions
1327 // ----------------------------------------------------------------------------
1328
1329 void wxWindowBase::MakeModal(bool modal)
1330 {
1331     // Disable all other windows
1332     if ( IsTopLevel() )
1333     {
1334         wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1335         while (node)
1336         {
1337             wxWindow *win = node->GetData();
1338             if (win != this)
1339                 win->Enable(!modal);
1340
1341             node = node->GetNext();
1342         }
1343     }
1344 }
1345
1346 bool wxWindowBase::Validate()
1347 {
1348 #if wxUSE_VALIDATORS
1349     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1350
1351     wxWindowList::compatibility_iterator node;
1352     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1353     {
1354         wxWindowBase *child = node->GetData();
1355         wxValidator *validator = child->GetValidator();
1356         if ( validator && !validator->Validate((wxWindow *)this) )
1357         {
1358             return false;
1359         }
1360
1361         if ( recurse && !child->Validate() )
1362         {
1363             return false;
1364         }
1365     }
1366 #endif // wxUSE_VALIDATORS
1367
1368     return true;
1369 }
1370
1371 bool wxWindowBase::TransferDataToWindow()
1372 {
1373 #if wxUSE_VALIDATORS
1374     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1375
1376     wxWindowList::compatibility_iterator node;
1377     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1378     {
1379         wxWindowBase *child = node->GetData();
1380         wxValidator *validator = child->GetValidator();
1381         if ( validator && !validator->TransferToWindow() )
1382         {
1383             wxLogWarning(_("Could not transfer data to window"));
1384 #if wxUSE_LOG
1385             wxLog::FlushActive();
1386 #endif // wxUSE_LOG
1387
1388             return false;
1389         }
1390
1391         if ( recurse )
1392         {
1393             if ( !child->TransferDataToWindow() )
1394             {
1395                 // warning already given
1396                 return false;
1397             }
1398         }
1399     }
1400 #endif // wxUSE_VALIDATORS
1401
1402     return true;
1403 }
1404
1405 bool wxWindowBase::TransferDataFromWindow()
1406 {
1407 #if wxUSE_VALIDATORS
1408     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1409
1410     wxWindowList::compatibility_iterator node;
1411     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1412     {
1413         wxWindow *child = node->GetData();
1414         wxValidator *validator = child->GetValidator();
1415         if ( validator && !validator->TransferFromWindow() )
1416         {
1417             // nop warning here because the application is supposed to give
1418             // one itself - we don't know here what might have gone wrongly
1419
1420             return false;
1421         }
1422
1423         if ( recurse )
1424         {
1425             if ( !child->TransferDataFromWindow() )
1426             {
1427                 // warning already given
1428                 return false;
1429             }
1430         }
1431     }
1432 #endif // wxUSE_VALIDATORS
1433
1434     return true;
1435 }
1436
1437 void wxWindowBase::InitDialog()
1438 {
1439     wxInitDialogEvent event(GetId());
1440     event.SetEventObject( this );
1441     GetEventHandler()->ProcessEvent(event);
1442 }
1443
1444 // ----------------------------------------------------------------------------
1445 // context-sensitive help support
1446 // ----------------------------------------------------------------------------
1447
1448 #if wxUSE_HELP
1449
1450 // associate this help text with this window
1451 void wxWindowBase::SetHelpText(const wxString& text)
1452 {
1453     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1454     if ( helpProvider )
1455     {
1456         helpProvider->AddHelp(this, text);
1457     }
1458 }
1459
1460 // associate this help text with all windows with the same id as this
1461 // one
1462 void wxWindowBase::SetHelpTextForId(const wxString& text)
1463 {
1464     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1465     if ( helpProvider )
1466     {
1467         helpProvider->AddHelp(GetId(), text);
1468     }
1469 }
1470
1471 // get the help string associated with this window (may be empty)
1472 // default implementation forwards calls to the help provider
1473 wxString
1474 wxWindowBase::GetHelpTextAtPoint(const wxPoint & WXUNUSED(pt),
1475                                  wxHelpEvent::Origin WXUNUSED(origin)) const
1476 {
1477     wxString text;
1478     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1479     if ( helpProvider )
1480     {
1481         text = helpProvider->GetHelp(this);
1482     }
1483
1484     return text;
1485 }
1486
1487 // show help for this window
1488 void wxWindowBase::OnHelp(wxHelpEvent& event)
1489 {
1490     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1491     if ( helpProvider )
1492     {
1493         if ( helpProvider->ShowHelpAtPoint(this, event.GetPosition(), event.GetOrigin()) )
1494         {
1495             // skip the event.Skip() below
1496             return;
1497         }
1498     }
1499
1500     event.Skip();
1501 }
1502
1503 #endif // wxUSE_HELP
1504
1505 // ----------------------------------------------------------------------------
1506 // tooltipsroot.Replace("\\", "/");
1507 // ----------------------------------------------------------------------------
1508
1509 #if wxUSE_TOOLTIPS
1510
1511 void wxWindowBase::SetToolTip( const wxString &tip )
1512 {
1513     // don't create the new tooltip if we already have one
1514     if ( m_tooltip )
1515     {
1516         m_tooltip->SetTip( tip );
1517     }
1518     else
1519     {
1520         SetToolTip( new wxToolTip( tip ) );
1521     }
1522
1523     // setting empty tooltip text does not remove the tooltip any more - use
1524     // SetToolTip((wxToolTip *)NULL) for this
1525 }
1526
1527 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1528 {
1529     if ( m_tooltip != tooltip )
1530     {
1531         if ( m_tooltip )
1532             delete m_tooltip;
1533
1534         m_tooltip = tooltip;
1535     }
1536 }
1537
1538 #endif // wxUSE_TOOLTIPS
1539
1540 // ----------------------------------------------------------------------------
1541 // constraints and sizers
1542 // ----------------------------------------------------------------------------
1543
1544 #if wxUSE_CONSTRAINTS
1545
1546 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1547 {
1548     if ( m_constraints )
1549     {
1550         UnsetConstraints(m_constraints);
1551         delete m_constraints;
1552     }
1553     m_constraints = constraints;
1554     if ( m_constraints )
1555     {
1556         // Make sure other windows know they're part of a 'meaningful relationship'
1557         if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1558             m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1559         if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1560             m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1561         if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1562             m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1563         if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1564             m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1565         if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1566             m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1567         if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1568             m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1569         if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1570             m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1571         if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1572             m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1573     }
1574 }
1575
1576 // This removes any dangling pointers to this window in other windows'
1577 // constraintsInvolvedIn lists.
1578 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1579 {
1580     if ( c )
1581     {
1582         if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1583             c->left.GetOtherWindow()->RemoveConstraintReference(this);
1584         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1585             c->top.GetOtherWindow()->RemoveConstraintReference(this);
1586         if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1587             c->right.GetOtherWindow()->RemoveConstraintReference(this);
1588         if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1589             c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1590         if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1591             c->width.GetOtherWindow()->RemoveConstraintReference(this);
1592         if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1593             c->height.GetOtherWindow()->RemoveConstraintReference(this);
1594         if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1595             c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1596         if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1597             c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1598     }
1599 }
1600
1601 // Back-pointer to other windows we're involved with, so if we delete this
1602 // window, we must delete any constraints we're involved with.
1603 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1604 {
1605     if ( !m_constraintsInvolvedIn )
1606         m_constraintsInvolvedIn = new wxWindowList;
1607     if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1608         m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1609 }
1610
1611 // REMOVE back-pointer to other windows we're involved with.
1612 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1613 {
1614     if ( m_constraintsInvolvedIn )
1615         m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1616 }
1617
1618 // Reset any constraints that mention this window
1619 void wxWindowBase::DeleteRelatedConstraints()
1620 {
1621     if ( m_constraintsInvolvedIn )
1622     {
1623         wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1624         while (node)
1625         {
1626             wxWindow *win = node->GetData();
1627             wxLayoutConstraints *constr = win->GetConstraints();
1628
1629             // Reset any constraints involving this window
1630             if ( constr )
1631             {
1632                 constr->left.ResetIfWin(this);
1633                 constr->top.ResetIfWin(this);
1634                 constr->right.ResetIfWin(this);
1635                 constr->bottom.ResetIfWin(this);
1636                 constr->width.ResetIfWin(this);
1637                 constr->height.ResetIfWin(this);
1638                 constr->centreX.ResetIfWin(this);
1639                 constr->centreY.ResetIfWin(this);
1640             }
1641
1642             wxWindowList::compatibility_iterator next = node->GetNext();
1643             m_constraintsInvolvedIn->Erase(node);
1644             node = next;
1645         }
1646
1647         delete m_constraintsInvolvedIn;
1648         m_constraintsInvolvedIn = (wxWindowList *) NULL;
1649     }
1650 }
1651
1652 #endif // wxUSE_CONSTRAINTS
1653
1654 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1655 {
1656     if ( sizer == m_windowSizer)
1657         return;
1658
1659     if ( m_windowSizer )
1660     {
1661         m_windowSizer->SetContainingWindow(NULL);
1662
1663         if ( deleteOld )
1664             delete m_windowSizer;
1665     }
1666
1667     m_windowSizer = sizer;
1668     if ( m_windowSizer )
1669     {
1670         m_windowSizer->SetContainingWindow((wxWindow *)this);
1671     }
1672
1673     SetAutoLayout(m_windowSizer != NULL);
1674 }
1675
1676 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1677 {
1678     SetSizer( sizer, deleteOld );
1679     sizer->SetSizeHints( (wxWindow*) this );
1680 }
1681
1682
1683 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1684 {
1685     // adding a window to a sizer twice is going to result in fatal and
1686     // hard to debug problems later because when deleting the second
1687     // associated wxSizerItem we're going to dereference a dangling
1688     // pointer; so try to detect this as early as possible
1689     wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1690                   _T("Adding a window to the same sizer twice?") );
1691
1692     m_containingSizer = sizer;
1693 }
1694
1695 #if wxUSE_CONSTRAINTS
1696
1697 void wxWindowBase::SatisfyConstraints()
1698 {
1699     wxLayoutConstraints *constr = GetConstraints();
1700     bool wasOk = constr && constr->AreSatisfied();
1701
1702     ResetConstraints();   // Mark all constraints as unevaluated
1703
1704     int noChanges = 1;
1705
1706     // if we're a top level panel (i.e. our parent is frame/dialog), our
1707     // own constraints will never be satisfied any more unless we do it
1708     // here
1709     if ( wasOk )
1710     {
1711         while ( noChanges > 0 )
1712         {
1713             LayoutPhase1(&noChanges);
1714         }
1715     }
1716
1717     LayoutPhase2(&noChanges);
1718 }
1719
1720 #endif // wxUSE_CONSTRAINTS
1721
1722 bool wxWindowBase::Layout()
1723 {
1724     // If there is a sizer, use it instead of the constraints
1725     if ( GetSizer() )
1726     {
1727         int w = 0, h = 0;
1728         GetVirtualSize(&w, &h);
1729         GetSizer()->SetDimension( 0, 0, w, h );
1730     }
1731 #if wxUSE_CONSTRAINTS
1732     else
1733     {
1734         SatisfyConstraints(); // Find the right constraints values
1735         SetConstraintSizes(); // Recursively set the real window sizes
1736     }
1737 #endif
1738
1739     return true;
1740 }
1741
1742 #if wxUSE_CONSTRAINTS
1743
1744 // first phase of the constraints evaluation: set our own constraints
1745 bool wxWindowBase::LayoutPhase1(int *noChanges)
1746 {
1747     wxLayoutConstraints *constr = GetConstraints();
1748
1749     return !constr || constr->SatisfyConstraints(this, noChanges);
1750 }
1751
1752 // second phase: set the constraints for our children
1753 bool wxWindowBase::LayoutPhase2(int *noChanges)
1754 {
1755     *noChanges = 0;
1756
1757     // Layout children
1758     DoPhase(1);
1759
1760     // Layout grand children
1761     DoPhase(2);
1762
1763     return true;
1764 }
1765
1766 // Do a phase of evaluating child constraints
1767 bool wxWindowBase::DoPhase(int phase)
1768 {
1769     // the list containing the children for which the constraints are already
1770     // set correctly
1771     wxWindowList succeeded;
1772
1773     // the max number of iterations we loop before concluding that we can't set
1774     // the constraints
1775     static const int maxIterations = 500;
1776
1777     for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1778     {
1779         int noChanges = 0;
1780
1781         // loop over all children setting their constraints
1782         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1783               node;
1784               node = node->GetNext() )
1785         {
1786             wxWindow *child = node->GetData();
1787             if ( child->IsTopLevel() )
1788             {
1789                 // top level children are not inside our client area
1790                 continue;
1791             }
1792
1793             if ( !child->GetConstraints() || succeeded.Find(child) )
1794             {
1795                 // this one is either already ok or nothing we can do about it
1796                 continue;
1797             }
1798
1799             int tempNoChanges = 0;
1800             bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1801                                       : child->LayoutPhase2(&tempNoChanges);
1802             noChanges += tempNoChanges;
1803
1804             if ( success )
1805             {
1806                 succeeded.Append(child);
1807             }
1808         }
1809
1810         if ( !noChanges )
1811         {
1812             // constraints are set
1813             break;
1814         }
1815     }
1816
1817     return true;
1818 }
1819
1820 void wxWindowBase::ResetConstraints()
1821 {
1822     wxLayoutConstraints *constr = GetConstraints();
1823     if ( constr )
1824     {
1825         constr->left.SetDone(false);
1826         constr->top.SetDone(false);
1827         constr->right.SetDone(false);
1828         constr->bottom.SetDone(false);
1829         constr->width.SetDone(false);
1830         constr->height.SetDone(false);
1831         constr->centreX.SetDone(false);
1832         constr->centreY.SetDone(false);
1833     }
1834
1835     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1836     while (node)
1837     {
1838         wxWindow *win = node->GetData();
1839         if ( !win->IsTopLevel() )
1840             win->ResetConstraints();
1841         node = node->GetNext();
1842     }
1843 }
1844
1845 // Need to distinguish between setting the 'fake' size for windows and sizers,
1846 // and setting the real values.
1847 void wxWindowBase::SetConstraintSizes(bool recurse)
1848 {
1849     wxLayoutConstraints *constr = GetConstraints();
1850     if ( constr && constr->AreSatisfied() )
1851     {
1852         int x = constr->left.GetValue();
1853         int y = constr->top.GetValue();
1854         int w = constr->width.GetValue();
1855         int h = constr->height.GetValue();
1856
1857         if ( (constr->width.GetRelationship() != wxAsIs ) ||
1858              (constr->height.GetRelationship() != wxAsIs) )
1859         {
1860             SetSize(x, y, w, h);
1861         }
1862         else
1863         {
1864             // If we don't want to resize this window, just move it...
1865             Move(x, y);
1866         }
1867     }
1868     else if ( constr )
1869     {
1870         wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1871                    GetClassInfo()->GetClassName(),
1872                    GetName().c_str());
1873     }
1874
1875     if ( recurse )
1876     {
1877         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1878         while (node)
1879         {
1880             wxWindow *win = node->GetData();
1881             if ( !win->IsTopLevel() && win->GetConstraints() )
1882                 win->SetConstraintSizes();
1883             node = node->GetNext();
1884         }
1885     }
1886 }
1887
1888 // Only set the size/position of the constraint (if any)
1889 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1890 {
1891     wxLayoutConstraints *constr = GetConstraints();
1892     if ( constr )
1893     {
1894         if ( x != wxDefaultCoord )
1895         {
1896             constr->left.SetValue(x);
1897             constr->left.SetDone(true);
1898         }
1899         if ( y != wxDefaultCoord )
1900         {
1901             constr->top.SetValue(y);
1902             constr->top.SetDone(true);
1903         }
1904         if ( w != wxDefaultCoord )
1905         {
1906             constr->width.SetValue(w);
1907             constr->width.SetDone(true);
1908         }
1909         if ( h != wxDefaultCoord )
1910         {
1911             constr->height.SetValue(h);
1912             constr->height.SetDone(true);
1913         }
1914     }
1915 }
1916
1917 void wxWindowBase::MoveConstraint(int x, int y)
1918 {
1919     wxLayoutConstraints *constr = GetConstraints();
1920     if ( constr )
1921     {
1922         if ( x != wxDefaultCoord )
1923         {
1924             constr->left.SetValue(x);
1925             constr->left.SetDone(true);
1926         }
1927         if ( y != wxDefaultCoord )
1928         {
1929             constr->top.SetValue(y);
1930             constr->top.SetDone(true);
1931         }
1932     }
1933 }
1934
1935 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
1936 {
1937     wxLayoutConstraints *constr = GetConstraints();
1938     if ( constr )
1939     {
1940         *w = constr->width.GetValue();
1941         *h = constr->height.GetValue();
1942     }
1943     else
1944         GetSize(w, h);
1945 }
1946
1947 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
1948 {
1949     wxLayoutConstraints *constr = GetConstraints();
1950     if ( constr )
1951     {
1952         *w = constr->width.GetValue();
1953         *h = constr->height.GetValue();
1954     }
1955     else
1956         GetClientSize(w, h);
1957 }
1958
1959 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
1960 {
1961     wxLayoutConstraints *constr = GetConstraints();
1962     if ( constr )
1963     {
1964         *x = constr->left.GetValue();
1965         *y = constr->top.GetValue();
1966     }
1967     else
1968         GetPosition(x, y);
1969 }
1970
1971 #endif // wxUSE_CONSTRAINTS
1972
1973 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
1974 {
1975     // don't do it for the dialogs/frames - they float independently of their
1976     // parent
1977     if ( !IsTopLevel() )
1978     {
1979         wxWindow *parent = GetParent();
1980         if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
1981         {
1982             wxPoint pt(parent->GetClientAreaOrigin());
1983             x += pt.x;
1984             y += pt.y;
1985         }
1986     }
1987 }
1988
1989 // ----------------------------------------------------------------------------
1990 // do Update UI processing for child controls
1991 // ----------------------------------------------------------------------------
1992
1993 void wxWindowBase::UpdateWindowUI(long flags)
1994 {
1995     wxUpdateUIEvent event(GetId());
1996     event.SetEventObject(this);
1997
1998     if ( GetEventHandler()->ProcessEvent(event) )
1999     {
2000         DoUpdateWindowUI(event);
2001     }
2002
2003     if (flags & wxUPDATE_UI_RECURSE)
2004     {
2005         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2006         while (node)
2007         {
2008             wxWindow* child = (wxWindow*) node->GetData();
2009             child->UpdateWindowUI(flags);
2010             node = node->GetNext();
2011         }
2012     }
2013 }
2014
2015 // do the window-specific processing after processing the update event
2016 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2017 {
2018     if ( event.GetSetEnabled() )
2019         Enable(event.GetEnabled());
2020
2021     if ( event.GetSetShown() )
2022         Show(event.GetShown());
2023 }
2024
2025 #if 0
2026 // call internal idle recursively
2027 // may be obsolete (wait until OnIdle scheme stabilises)
2028 void wxWindowBase::ProcessInternalIdle()
2029 {
2030     OnInternalIdle();
2031
2032     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2033     while (node)
2034     {
2035         wxWindow *child = node->GetData();
2036         child->ProcessInternalIdle();
2037         node = node->GetNext();
2038     }
2039 }
2040 #endif
2041
2042 // ----------------------------------------------------------------------------
2043 // dialog units translations
2044 // ----------------------------------------------------------------------------
2045
2046 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2047 {
2048     int charWidth = GetCharWidth();
2049     int charHeight = GetCharHeight();
2050     wxPoint pt2 = wxDefaultPosition;
2051     if (pt.x != wxDefaultCoord)
2052         pt2.x = (int) ((pt.x * 4) / charWidth);
2053     if (pt.y != wxDefaultCoord)
2054         pt2.y = (int) ((pt.y * 8) / charHeight);
2055
2056     return pt2;
2057 }
2058
2059 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2060 {
2061     int charWidth = GetCharWidth();
2062     int charHeight = GetCharHeight();
2063     wxPoint pt2 = wxDefaultPosition;
2064     if (pt.x != wxDefaultCoord)
2065         pt2.x = (int) ((pt.x * charWidth) / 4);
2066     if (pt.y != wxDefaultCoord)
2067         pt2.y = (int) ((pt.y * charHeight) / 8);
2068
2069     return pt2;
2070 }
2071
2072 // ----------------------------------------------------------------------------
2073 // event handlers
2074 // ----------------------------------------------------------------------------
2075
2076 // propagate the colour change event to the subwindows
2077 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2078 {
2079     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2080     while ( node )
2081     {
2082         // Only propagate to non-top-level windows
2083         wxWindow *win = node->GetData();
2084         if ( !win->IsTopLevel() )
2085         {
2086             wxSysColourChangedEvent event2;
2087             event.SetEventObject(win);
2088             win->GetEventHandler()->ProcessEvent(event2);
2089         }
2090
2091         node = node->GetNext();
2092     }
2093
2094     Refresh();
2095 }
2096
2097 // the default action is to populate dialog with data when it's created,
2098 // and nudge the UI into displaying itself correctly in case
2099 // we've turned the wxUpdateUIEvents frequency down low.
2100 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2101 {
2102     TransferDataToWindow();
2103
2104     // Update the UI at this point
2105     UpdateWindowUI(wxUPDATE_UI_RECURSE);
2106 }
2107
2108 // methods for drawing the sizers in a visible way
2109 #ifdef __WXDEBUG__
2110
2111 static void DrawSizers(wxWindowBase *win);
2112
2113 static void DrawBorder(wxWindowBase *win, const wxRect& rect, bool fill = false)
2114 {
2115     wxClientDC dc((wxWindow *)win);
2116     dc.SetPen(*wxRED_PEN);
2117     dc.SetBrush(fill ? wxBrush(*wxRED, wxCROSSDIAG_HATCH): *wxTRANSPARENT_BRUSH);
2118     dc.DrawRectangle(rect.Deflate(1, 1));
2119 }
2120
2121 static void DrawSizer(wxWindowBase *win, wxSizer *sizer)
2122 {
2123     const wxSizerItemList& items = sizer->GetChildren();
2124     for ( wxSizerItemList::const_iterator i = items.begin(),
2125                                         end = items.end();
2126           i != end;
2127           ++i )
2128     {
2129         wxSizerItem *item = *i;
2130         if ( item->IsSizer() )
2131         {
2132             DrawBorder(win, item->GetRect().Deflate(2));
2133             DrawSizer(win, item->GetSizer());
2134         }
2135         else if ( item->IsSpacer() )
2136         {
2137             DrawBorder(win, item->GetRect().Deflate(2), true);
2138         }
2139         else if ( item->IsWindow() )
2140         {
2141             DrawSizers(item->GetWindow());
2142         }
2143     }
2144 }
2145
2146 static void DrawSizers(wxWindowBase *win)
2147 {
2148     wxSizer *sizer = win->GetSizer();
2149     if ( sizer )
2150     {
2151         DrawBorder(win, win->GetClientSize());
2152         DrawSizer(win, sizer);
2153     }
2154     else // no sizer, still recurse into the children
2155     {
2156         const wxWindowList& children = win->GetChildren();
2157         for ( wxWindowList::const_iterator i = children.begin(),
2158                                          end = children.end();
2159               i != end;
2160               ++i )
2161         {
2162             DrawSizers(*i);
2163         }
2164     }
2165 }
2166
2167 #endif // __WXDEBUG__
2168
2169 // process special middle clicks
2170 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2171 {
2172     if ( event.ControlDown() && event.AltDown() )
2173     {
2174 #ifdef __WXDEBUG__
2175         // Ctrl-Alt-Shift-mclick makes the sizers visible in debug builds
2176         if ( event.ShiftDown() )
2177         {
2178             DrawSizers(this);
2179             return;
2180         }
2181 #endif // __WXDEBUG__
2182
2183 #if wxUSE_MSGDLG
2184         // don't translate these strings, they're for diagnostics purposes only
2185         wxString msg;
2186         msg.Printf(_T("wxWidgets Library (%s port)\n")
2187                    _T("Version %d.%d.%d%s%s, compiled at %s %s%s\n")
2188                    _T("Copyright (c) 1995-2006 wxWidgets team"),
2189                    wxPlatformInfo().GetPortIdName().c_str(),
2190                    wxMAJOR_VERSION,
2191                    wxMINOR_VERSION,
2192                    wxRELEASE_NUMBER,
2193 #if wxUSE_UNICODE
2194                    L" (Unicode)",
2195 #else
2196                    wxEmptyString,
2197 #endif
2198 #ifdef __WXDEBUG__
2199                    _T(" Debug build"),
2200 #else
2201                    wxEmptyString,
2202 #endif
2203                    __TDATE__,
2204                    __TTIME__,
2205 #ifdef __WXGTK__
2206                    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()
2207 #else
2208                    wxEmptyString
2209 #endif
2210                    );
2211
2212         wxMessageBox(msg, _T("wxWidgets information"),
2213                      wxICON_INFORMATION | wxOK,
2214                      (wxWindow *)this);
2215     }
2216     else
2217 #endif // wxUSE_MSGDLG
2218     {
2219         event.Skip();
2220     }
2221 }
2222
2223 // ----------------------------------------------------------------------------
2224 // accessibility
2225 // ----------------------------------------------------------------------------
2226
2227 #if wxUSE_ACCESSIBILITY
2228 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2229 {
2230     if (m_accessible && (accessible != m_accessible))
2231         delete m_accessible;
2232     m_accessible = accessible;
2233     if (m_accessible)
2234         m_accessible->SetWindow((wxWindow*) this);
2235 }
2236
2237 // Returns the accessible object, creating if necessary.
2238 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2239 {
2240     if (!m_accessible)
2241         m_accessible = CreateAccessible();
2242     return m_accessible;
2243 }
2244
2245 // Override to create a specific accessible object.
2246 wxAccessible* wxWindowBase::CreateAccessible()
2247 {
2248     return new wxWindowAccessible((wxWindow*) this);
2249 }
2250
2251 #endif
2252
2253 // ----------------------------------------------------------------------------
2254 // list classes implementation
2255 // ----------------------------------------------------------------------------
2256
2257 #if wxUSE_STL
2258
2259 #include "wx/listimpl.cpp"
2260 WX_DEFINE_LIST(wxWindowList)
2261
2262 #else
2263
2264 void wxWindowListNode::DeleteData()
2265 {
2266     delete (wxWindow *)GetData();
2267 }
2268
2269 #endif
2270
2271 // ----------------------------------------------------------------------------
2272 // borders
2273 // ----------------------------------------------------------------------------
2274
2275 wxBorder wxWindowBase::GetBorder(long flags) const
2276 {
2277     wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2278     if ( border == wxBORDER_DEFAULT )
2279     {
2280         border = GetDefaultBorder();
2281     }
2282
2283     return border;
2284 }
2285
2286 wxBorder wxWindowBase::GetDefaultBorder() const
2287 {
2288     return wxBORDER_NONE;
2289 }
2290
2291 // ----------------------------------------------------------------------------
2292 // hit testing
2293 // ----------------------------------------------------------------------------
2294
2295 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2296 {
2297     // here we just check if the point is inside the window or not
2298
2299     // check the top and left border first
2300     bool outside = x < 0 || y < 0;
2301     if ( !outside )
2302     {
2303         // check the right and bottom borders too
2304         wxSize size = GetSize();
2305         outside = x >= size.x || y >= size.y;
2306     }
2307
2308     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2309 }
2310
2311 // ----------------------------------------------------------------------------
2312 // mouse capture
2313 // ----------------------------------------------------------------------------
2314
2315 struct WXDLLEXPORT wxWindowNext
2316 {
2317     wxWindow *win;
2318     wxWindowNext *next;
2319 } *wxWindowBase::ms_winCaptureNext = NULL;
2320 wxWindow *wxWindowBase::ms_winCaptureCurrent = NULL;
2321 bool wxWindowBase::ms_winCaptureChanging = false;
2322
2323 void wxWindowBase::CaptureMouse()
2324 {
2325     wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), wx_static_cast(void*, this));
2326
2327     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive CaptureMouse call?") );
2328
2329     ms_winCaptureChanging = true;
2330
2331     wxWindow *winOld = GetCapture();
2332     if ( winOld )
2333     {
2334         ((wxWindowBase*) winOld)->DoReleaseMouse();
2335
2336         // save it on stack
2337         wxWindowNext *item = new wxWindowNext;
2338         item->win = winOld;
2339         item->next = ms_winCaptureNext;
2340         ms_winCaptureNext = item;
2341     }
2342     //else: no mouse capture to save
2343
2344     DoCaptureMouse();
2345     ms_winCaptureCurrent = (wxWindow*)this;
2346
2347     ms_winCaptureChanging = false;
2348 }
2349
2350 void wxWindowBase::ReleaseMouse()
2351 {
2352     wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), wx_static_cast(void*, this));
2353
2354     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive ReleaseMouse call?") );
2355
2356     wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2357
2358     ms_winCaptureChanging = true;
2359
2360     DoReleaseMouse();
2361     ms_winCaptureCurrent = NULL;
2362
2363     if ( ms_winCaptureNext )
2364     {
2365         ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2366         ms_winCaptureCurrent = ms_winCaptureNext->win;
2367
2368         wxWindowNext *item = ms_winCaptureNext;
2369         ms_winCaptureNext = item->next;
2370         delete item;
2371     }
2372     //else: stack is empty, no previous capture
2373
2374     ms_winCaptureChanging = false;
2375
2376     wxLogTrace(_T("mousecapture"),
2377         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2378         wx_static_cast(void*, GetCapture()));
2379 }
2380
2381 static void DoNotifyWindowAboutCaptureLost(wxWindow *win)
2382 {
2383     wxMouseCaptureLostEvent event(win->GetId());
2384     event.SetEventObject(win);
2385     if ( !win->GetEventHandler()->ProcessEvent(event) )
2386     {
2387         wxFAIL_MSG( _T("window that captured the mouse didn't process wxEVT_MOUSE_CAPTURE_LOST") );
2388     }
2389 }
2390
2391 /* static */
2392 void wxWindowBase::NotifyCaptureLost()
2393 {
2394     // don't do anything if capture lost was expected, i.e. resulted from
2395     // a wx call to ReleaseMouse or CaptureMouse:
2396     if ( ms_winCaptureChanging )
2397         return;
2398
2399     // if the capture was lost unexpectedly, notify every window that has
2400     // capture (on stack or current) about it and clear the stack:
2401
2402     if ( ms_winCaptureCurrent )
2403     {
2404         DoNotifyWindowAboutCaptureLost(ms_winCaptureCurrent);
2405         ms_winCaptureCurrent = NULL;
2406     }
2407
2408     while ( ms_winCaptureNext )
2409     {
2410         wxWindowNext *item = ms_winCaptureNext;
2411         ms_winCaptureNext = item->next;
2412
2413         DoNotifyWindowAboutCaptureLost(item->win);
2414
2415         delete item;
2416     }
2417 }
2418
2419 #if wxUSE_HOTKEY
2420
2421 bool
2422 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2423                              int WXUNUSED(modifiers),
2424                              int WXUNUSED(keycode))
2425 {
2426     // not implemented
2427     return false;
2428 }
2429
2430 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2431 {
2432     // not implemented
2433     return false;
2434 }
2435
2436 #endif // wxUSE_HOTKEY
2437
2438 void wxWindowBase::SendDestroyEvent()
2439 {
2440     wxWindowDestroyEvent event;
2441     event.SetEventObject(this);
2442     event.SetId(GetId());
2443     GetEventHandler()->ProcessEvent(event);
2444 }
2445
2446 // ----------------------------------------------------------------------------
2447 // event processing
2448 // ----------------------------------------------------------------------------
2449
2450 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2451 {
2452 #if wxUSE_VALIDATORS
2453     // Can only use the validator of the window which
2454     // is receiving the event
2455     if ( event.GetEventObject() == this )
2456     {
2457         wxValidator *validator = GetValidator();
2458         if ( validator && validator->ProcessEvent(event) )
2459         {
2460             return true;
2461         }
2462     }
2463 #endif // wxUSE_VALIDATORS
2464
2465     return false;
2466 }
2467
2468 bool wxWindowBase::TryParent(wxEvent& event)
2469 {
2470     // carry on up the parent-child hierarchy if the propagation count hasn't
2471     // reached zero yet
2472     if ( event.ShouldPropagate() )
2473     {
2474         // honour the requests to stop propagation at this window: this is
2475         // used by the dialogs, for example, to prevent processing the events
2476         // from the dialog controls in the parent frame which rarely, if ever,
2477         // makes sense
2478         if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2479         {
2480             wxWindow *parent = GetParent();
2481             if ( parent && !parent->IsBeingDeleted() )
2482             {
2483                 wxPropagateOnce propagateOnce(event);
2484
2485                 return parent->GetEventHandler()->ProcessEvent(event);
2486             }
2487         }
2488     }
2489
2490     return wxEvtHandler::TryParent(event);
2491 }
2492
2493 // ----------------------------------------------------------------------------
2494 // keyboard navigation
2495 // ----------------------------------------------------------------------------
2496
2497 // Navigates in the specified direction.
2498 bool wxWindowBase::Navigate(int flags)
2499 {
2500     wxNavigationKeyEvent eventNav;
2501     eventNav.SetFlags(flags);
2502     eventNav.SetEventObject(this);
2503     if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2504     {
2505         return true;
2506     }
2507     return false;
2508 }
2509
2510 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2511 {
2512     // check that we're not a top level window
2513     wxCHECK_RET( GetParent(),
2514                     _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2515
2516     // detect the special case when we have nothing to do anyhow and when the
2517     // code below wouldn't work
2518     if ( win == this )
2519         return;
2520
2521     // find the target window in the siblings list
2522     wxWindowList& siblings = GetParent()->GetChildren();
2523     wxWindowList::compatibility_iterator i = siblings.Find(win);
2524     wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2525
2526     // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2527     // can't just move the node around
2528     wxWindow *self = (wxWindow *)this;
2529     siblings.DeleteObject(self);
2530     if ( move == MoveAfter )
2531     {
2532         i = i->GetNext();
2533     }
2534
2535     if ( i )
2536     {
2537         siblings.Insert(i, self);
2538     }
2539     else // MoveAfter and win was the last sibling
2540     {
2541         siblings.Append(self);
2542     }
2543 }
2544
2545 // ----------------------------------------------------------------------------
2546 // focus handling
2547 // ----------------------------------------------------------------------------
2548
2549 /*static*/ wxWindow* wxWindowBase::FindFocus()
2550 {
2551     wxWindowBase *win = DoFindFocus();
2552     return win ? win->GetMainWindowOfCompositeControl() : NULL;
2553 }
2554
2555 // ----------------------------------------------------------------------------
2556 // global functions
2557 // ----------------------------------------------------------------------------
2558
2559 wxWindow* wxGetTopLevelParent(wxWindow *win)
2560 {
2561     while ( win && !win->IsTopLevel() )
2562          win = win->GetParent();
2563
2564     return win;
2565 }
2566
2567 #if wxUSE_ACCESSIBILITY
2568 // ----------------------------------------------------------------------------
2569 // accessible object for windows
2570 // ----------------------------------------------------------------------------
2571
2572 // Can return either a child object, or an integer
2573 // representing the child element, starting from 1.
2574 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2575 {
2576     wxASSERT( GetWindow() != NULL );
2577     if (!GetWindow())
2578         return wxACC_FAIL;
2579
2580     return wxACC_NOT_IMPLEMENTED;
2581 }
2582
2583 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2584 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2585 {
2586     wxASSERT( GetWindow() != NULL );
2587     if (!GetWindow())
2588         return wxACC_FAIL;
2589
2590     wxWindow* win = NULL;
2591     if (elementId == 0)
2592     {
2593         win = GetWindow();
2594     }
2595     else
2596     {
2597         if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2598         {
2599             win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2600         }
2601         else
2602             return wxACC_FAIL;
2603     }
2604     if (win)
2605     {
2606         rect = win->GetRect();
2607         if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2608             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2609         return wxACC_OK;
2610     }
2611
2612     return wxACC_NOT_IMPLEMENTED;
2613 }
2614
2615 // Navigates from fromId to toId/toObject.
2616 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2617                              int* WXUNUSED(toId), wxAccessible** toObject)
2618 {
2619     wxASSERT( GetWindow() != NULL );
2620     if (!GetWindow())
2621         return wxACC_FAIL;
2622
2623     switch (navDir)
2624     {
2625     case wxNAVDIR_FIRSTCHILD:
2626         {
2627             if (GetWindow()->GetChildren().GetCount() == 0)
2628                 return wxACC_FALSE;
2629             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2630             *toObject = childWindow->GetOrCreateAccessible();
2631
2632             return wxACC_OK;
2633         }
2634     case wxNAVDIR_LASTCHILD:
2635         {
2636             if (GetWindow()->GetChildren().GetCount() == 0)
2637                 return wxACC_FALSE;
2638             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2639             *toObject = childWindow->GetOrCreateAccessible();
2640
2641             return wxACC_OK;
2642         }
2643     case wxNAVDIR_RIGHT:
2644     case wxNAVDIR_DOWN:
2645     case wxNAVDIR_NEXT:
2646         {
2647             wxWindowList::compatibility_iterator node =
2648                 wxWindowList::compatibility_iterator();
2649             if (fromId == 0)
2650             {
2651                 // Can't navigate to sibling of this window
2652                 // if we're a top-level window.
2653                 if (!GetWindow()->GetParent())
2654                     return wxACC_NOT_IMPLEMENTED;
2655
2656                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2657             }
2658             else
2659             {
2660                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2661                     node = GetWindow()->GetChildren().Item(fromId-1);
2662             }
2663
2664             if (node && node->GetNext())
2665             {
2666                 wxWindow* nextWindow = node->GetNext()->GetData();
2667                 *toObject = nextWindow->GetOrCreateAccessible();
2668                 return wxACC_OK;
2669             }
2670             else
2671                 return wxACC_FALSE;
2672         }
2673     case wxNAVDIR_LEFT:
2674     case wxNAVDIR_UP:
2675     case wxNAVDIR_PREVIOUS:
2676         {
2677             wxWindowList::compatibility_iterator node =
2678                 wxWindowList::compatibility_iterator();
2679             if (fromId == 0)
2680             {
2681                 // Can't navigate to sibling of this window
2682                 // if we're a top-level window.
2683                 if (!GetWindow()->GetParent())
2684                     return wxACC_NOT_IMPLEMENTED;
2685
2686                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2687             }
2688             else
2689             {
2690                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2691                     node = GetWindow()->GetChildren().Item(fromId-1);
2692             }
2693
2694             if (node && node->GetPrevious())
2695             {
2696                 wxWindow* previousWindow = node->GetPrevious()->GetData();
2697                 *toObject = previousWindow->GetOrCreateAccessible();
2698                 return wxACC_OK;
2699             }
2700             else
2701                 return wxACC_FALSE;
2702         }
2703     }
2704
2705     return wxACC_NOT_IMPLEMENTED;
2706 }
2707
2708 // Gets the name of the specified object.
2709 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2710 {
2711     wxASSERT( GetWindow() != NULL );
2712     if (!GetWindow())
2713         return wxACC_FAIL;
2714
2715     wxString title;
2716
2717     // If a child, leave wxWidgets to call the function on the actual
2718     // child object.
2719     if (childId > 0)
2720         return wxACC_NOT_IMPLEMENTED;
2721
2722     // This will eventually be replaced by specialised
2723     // accessible classes, one for each kind of wxWidgets
2724     // control or window.
2725 #if wxUSE_BUTTON
2726     if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2727         title = ((wxButton*) GetWindow())->GetLabel();
2728     else
2729 #endif
2730         title = GetWindow()->GetName();
2731
2732     if (!title.empty())
2733     {
2734         *name = title;
2735         return wxACC_OK;
2736     }
2737     else
2738         return wxACC_NOT_IMPLEMENTED;
2739 }
2740
2741 // Gets the number of children.
2742 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2743 {
2744     wxASSERT( GetWindow() != NULL );
2745     if (!GetWindow())
2746         return wxACC_FAIL;
2747
2748     *childId = (int) GetWindow()->GetChildren().GetCount();
2749     return wxACC_OK;
2750 }
2751
2752 // Gets the specified child (starting from 1).
2753 // If *child is NULL and return value is wxACC_OK,
2754 // this means that the child is a simple element and
2755 // not an accessible object.
2756 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2757 {
2758     wxASSERT( GetWindow() != NULL );
2759     if (!GetWindow())
2760         return wxACC_FAIL;
2761
2762     if (childId == 0)
2763     {
2764         *child = this;
2765         return wxACC_OK;
2766     }
2767
2768     if (childId > (int) GetWindow()->GetChildren().GetCount())
2769         return wxACC_FAIL;
2770
2771     wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2772     *child = childWindow->GetOrCreateAccessible();
2773     if (*child)
2774         return wxACC_OK;
2775     else
2776         return wxACC_FAIL;
2777 }
2778
2779 // Gets the parent, or NULL.
2780 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2781 {
2782     wxASSERT( GetWindow() != NULL );
2783     if (!GetWindow())
2784         return wxACC_FAIL;
2785
2786     wxWindow* parentWindow = GetWindow()->GetParent();
2787     if (!parentWindow)
2788     {
2789         *parent = NULL;
2790         return wxACC_OK;
2791     }
2792     else
2793     {
2794         *parent = parentWindow->GetOrCreateAccessible();
2795         if (*parent)
2796             return wxACC_OK;
2797         else
2798             return wxACC_FAIL;
2799     }
2800 }
2801
2802 // Performs the default action. childId is 0 (the action for this object)
2803 // or > 0 (the action for a child).
2804 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2805 // window (e.g. an edit control).
2806 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2807 {
2808     wxASSERT( GetWindow() != NULL );
2809     if (!GetWindow())
2810         return wxACC_FAIL;
2811
2812     return wxACC_NOT_IMPLEMENTED;
2813 }
2814
2815 // Gets the default action for this object (0) or > 0 (the action for a child).
2816 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2817 // string if there is no action.
2818 // The retrieved string describes the action that is performed on an object,
2819 // not what the object does as a result. For example, a toolbar button that prints
2820 // a document has a default action of "Press" rather than "Prints the current document."
2821 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2822 {
2823     wxASSERT( GetWindow() != NULL );
2824     if (!GetWindow())
2825         return wxACC_FAIL;
2826
2827     return wxACC_NOT_IMPLEMENTED;
2828 }
2829
2830 // Returns the description for this object or a child.
2831 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2832 {
2833     wxASSERT( GetWindow() != NULL );
2834     if (!GetWindow())
2835         return wxACC_FAIL;
2836
2837     wxString ht(GetWindow()->GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Keyboard));
2838     if (!ht.empty())
2839     {
2840         *description = ht;
2841         return wxACC_OK;
2842     }
2843     return wxACC_NOT_IMPLEMENTED;
2844 }
2845
2846 // Returns help text for this object or a child, similar to tooltip text.
2847 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2848 {
2849     wxASSERT( GetWindow() != NULL );
2850     if (!GetWindow())
2851         return wxACC_FAIL;
2852
2853     wxString ht(GetWindow()->GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Keyboard));
2854     if (!ht.empty())
2855     {
2856         *helpText = ht;
2857         return wxACC_OK;
2858     }
2859     return wxACC_NOT_IMPLEMENTED;
2860 }
2861
2862 // Returns the keyboard shortcut for this object or child.
2863 // Return e.g. ALT+K
2864 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2865 {
2866     wxASSERT( GetWindow() != NULL );
2867     if (!GetWindow())
2868         return wxACC_FAIL;
2869
2870     return wxACC_NOT_IMPLEMENTED;
2871 }
2872
2873 // Returns a role constant.
2874 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2875 {
2876     wxASSERT( GetWindow() != NULL );
2877     if (!GetWindow())
2878         return wxACC_FAIL;
2879
2880     // If a child, leave wxWidgets to call the function on the actual
2881     // child object.
2882     if (childId > 0)
2883         return wxACC_NOT_IMPLEMENTED;
2884
2885     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2886         return wxACC_NOT_IMPLEMENTED;
2887 #if wxUSE_STATUSBAR
2888     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2889         return wxACC_NOT_IMPLEMENTED;
2890 #endif
2891 #if wxUSE_TOOLBAR
2892     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2893         return wxACC_NOT_IMPLEMENTED;
2894 #endif
2895
2896     //*role = wxROLE_SYSTEM_CLIENT;
2897     *role = wxROLE_SYSTEM_CLIENT;
2898     return wxACC_OK;
2899
2900     #if 0
2901     return wxACC_NOT_IMPLEMENTED;
2902     #endif
2903 }
2904
2905 // Returns a state constant.
2906 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2907 {
2908     wxASSERT( GetWindow() != NULL );
2909     if (!GetWindow())
2910         return wxACC_FAIL;
2911
2912     // If a child, leave wxWidgets to call the function on the actual
2913     // child object.
2914     if (childId > 0)
2915         return wxACC_NOT_IMPLEMENTED;
2916
2917     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2918         return wxACC_NOT_IMPLEMENTED;
2919
2920 #if wxUSE_STATUSBAR
2921     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2922         return wxACC_NOT_IMPLEMENTED;
2923 #endif
2924 #if wxUSE_TOOLBAR
2925     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2926         return wxACC_NOT_IMPLEMENTED;
2927 #endif
2928
2929     *state = 0;
2930     return wxACC_OK;
2931
2932     #if 0
2933     return wxACC_NOT_IMPLEMENTED;
2934     #endif
2935 }
2936
2937 // Returns a localized string representing the value for the object
2938 // or child.
2939 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2940 {
2941     wxASSERT( GetWindow() != NULL );
2942     if (!GetWindow())
2943         return wxACC_FAIL;
2944
2945     return wxACC_NOT_IMPLEMENTED;
2946 }
2947
2948 // Selects the object or child.
2949 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2950 {
2951     wxASSERT( GetWindow() != NULL );
2952     if (!GetWindow())
2953         return wxACC_FAIL;
2954
2955     return wxACC_NOT_IMPLEMENTED;
2956 }
2957
2958 // Gets the window with the keyboard focus.
2959 // If childId is 0 and child is NULL, no object in
2960 // this subhierarchy has the focus.
2961 // If this object has the focus, child should be 'this'.
2962 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2963 {
2964     wxASSERT( GetWindow() != NULL );
2965     if (!GetWindow())
2966         return wxACC_FAIL;
2967
2968     return wxACC_NOT_IMPLEMENTED;
2969 }
2970
2971 // Gets a variant representing the selected children
2972 // of this object.
2973 // Acceptable values:
2974 // - a null variant (IsNull() returns true)
2975 // - a list variant (GetType() == wxT("list")
2976 // - an integer representing the selected child element,
2977 //   or 0 if this object is selected (GetType() == wxT("long")
2978 // - a "void*" pointer to a wxAccessible child object
2979 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
2980 {
2981     wxASSERT( GetWindow() != NULL );
2982     if (!GetWindow())
2983         return wxACC_FAIL;
2984
2985     return wxACC_NOT_IMPLEMENTED;
2986 }
2987
2988 #endif // wxUSE_ACCESSIBILITY
2989
2990 // ----------------------------------------------------------------------------
2991 // RTL support
2992 // ----------------------------------------------------------------------------
2993
2994 wxCoord
2995 wxWindowBase::AdjustForLayoutDirection(wxCoord x,
2996                                        wxCoord width,
2997                                        wxCoord widthTotal) const
2998 {
2999     if ( GetLayoutDirection() == wxLayout_RightToLeft )
3000     {
3001         x = widthTotal - x - width;
3002     }
3003
3004     return x;
3005 }
3006