src/common/wincmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/window.cpp
   3 // Purpose:     common (to all ports) wxWindow functions
   4 // Author:      Julian Smart, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     13/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/string.h"
  29     #include "wx/log.h"
  30     #include "wx/intl.h"
  31     #include "wx/frame.h"
  32     #include "wx/window.h"
  33     #include "wx/control.h"
  34     #include "wx/checkbox.h"
  35     #include "wx/radiobut.h"
  36     #include "wx/statbox.h"
  37     #include "wx/textctrl.h"
  38     #include "wx/settings.h"
  39     #include "wx/dialog.h"
  40     #include "wx/msgdlg.h"
  41     #include "wx/statusbr.h"
  42     #include "wx/toolbar.h"
  43     #include "wx/dcclient.h"
  44 #endif //WX_PRECOMP
  45
  46 #if defined(__WXMAC__) && wxUSE_SCROLLBAR
  47     #include "wx/scrolbar.h"
  48 #endif
  49
  50 #if wxUSE_CONSTRAINTS
  51     #include "wx/layout.h"
  52 #endif // wxUSE_CONSTRAINTS
  53
  54 #include "wx/sizer.h"
  55
  56 #if wxUSE_DRAG_AND_DROP
  57     #include "wx/dnd.h"
  58 #endif // wxUSE_DRAG_AND_DROP
  59
  60 #if wxUSE_ACCESSIBILITY
  61     #include "wx/access.h"
  62 #endif
  63
  64 #if wxUSE_HELP
  65     #include "wx/cshelp.h"
  66 #endif // wxUSE_HELP
  67
  68 #if wxUSE_TOOLTIPS
  69     #include "wx/tooltip.h"
  70 #endif // wxUSE_TOOLTIPS
  71
  72 #if wxUSE_CARET
  73     #include "wx/caret.h"
  74 #endif // wxUSE_CARET
  75
  76 #if wxUSE_SYSTEM_OPTIONS
  77     #include "wx/sysopt.h"
  78 #endif
  79
  80 // For reporting compile- and runtime version of GTK+ in the ctrl+alt+mclick dialog.
  81 // The gtk includes don't pull any other headers in, at least not on my system - MR
  82 #ifdef __WXGTK__
  83     #ifdef __WXGTK20__
  84         #include <gtk/gtkversion.h>
  85     #else
  86         #include <gtk/gtkfeatures.h>
  87     #endif
  88     extern const unsigned int gtk_major_version;
  89     extern const unsigned int gtk_minor_version;
  90     extern const unsigned int gtk_micro_version;
  91 #endif
  92
  93 // Windows List
  94 WXDLLIMPEXP_DATA_CORE(wxWindowList) wxTopLevelWindows;
  95
  96 // ----------------------------------------------------------------------------
  97 // static data
  98 // ----------------------------------------------------------------------------
  99
 100 #if defined(__WXPALMOS__)
 101 int wxWindowBase::ms_lastControlId = 32767;
 102 #elif defined(__WXPM__)
 103 int wxWindowBase::ms_lastControlId = 2000;
 104 #else
 105 int wxWindowBase::ms_lastControlId = -200;
 106 #endif
 107
 108 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
 109
 110 // ----------------------------------------------------------------------------
 111 // event table
 112 // ----------------------------------------------------------------------------
 113
 114 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
 115     EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
 116     EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
 117     EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
 118
 119 #if wxUSE_HELP
 120     EVT_HELP(wxID_ANY, wxWindowBase::OnHelp)
 121 #endif // wxUSE_HELP
 122
 123 END_EVENT_TABLE()
 124
 125 // ============================================================================
 126 // implementation of the common functionality of the wxWindow class
 127 // ============================================================================
 128
 129 // ----------------------------------------------------------------------------
 130 // initialization
 131 // ----------------------------------------------------------------------------
 132
 133 // the default initialization
 134 wxWindowBase::wxWindowBase()
 135 {
 136     // no window yet, no parent nor children
 137     m_parent = (wxWindow *)NULL;
 138     m_windowId = wxID_ANY;
 139
 140     // no constraints on the minimal window size
 141     m_minWidth =
 142     m_maxWidth = wxDefaultCoord;
 143     m_minHeight =
 144     m_maxHeight = wxDefaultCoord;
 145
 146     // invalidiated cache value
 147     m_bestSizeCache = wxDefaultSize;
 148
 149     // window are created enabled and visible by default
 150     m_isShown =
 151     m_isEnabled = true;
 152
 153     // the default event handler is just this window
 154     m_eventHandler = this;
 155
 156 #if wxUSE_VALIDATORS
 157     // no validator
 158     m_windowValidator = (wxValidator *) NULL;
 159 #endif // wxUSE_VALIDATORS
 160
 161     // the colours/fonts are default for now, so leave m_font,
 162     // m_backgroundColour and m_foregroundColour uninitialized and set those
 163     m_hasBgCol =
 164     m_hasFgCol =
 165     m_hasFont = false;
 166     m_inheritBgCol =
 167     m_inheritFgCol =
 168     m_inheritFont = false;
 169
 170     // no style bits
 171     m_exStyle =
 172     m_windowStyle = 0;
 173
 174     m_backgroundStyle = wxBG_STYLE_SYSTEM;
 175
 176 #if wxUSE_CONSTRAINTS
 177     // no constraints whatsoever
 178     m_constraints = (wxLayoutConstraints *) NULL;
 179     m_constraintsInvolvedIn = (wxWindowList *) NULL;
 180 #endif // wxUSE_CONSTRAINTS
 181
 182     m_windowSizer = (wxSizer *) NULL;
 183     m_containingSizer = (wxSizer *) NULL;
 184     m_autoLayout = false;
 185
 186 #if wxUSE_DRAG_AND_DROP
 187     m_dropTarget = (wxDropTarget *)NULL;
 188 #endif // wxUSE_DRAG_AND_DROP
 189
 190 #if wxUSE_TOOLTIPS
 191     m_tooltip = (wxToolTip *)NULL;
 192 #endif // wxUSE_TOOLTIPS
 193
 194 #if wxUSE_CARET
 195     m_caret = (wxCaret *)NULL;
 196 #endif // wxUSE_CARET
 197
 198 #if wxUSE_PALETTE
 199     m_hasCustomPalette = false;
 200 #endif // wxUSE_PALETTE
 201
 202 #if wxUSE_ACCESSIBILITY
 203     m_accessible = NULL;
 204 #endif
 205
 206     m_virtualSize = wxDefaultSize;
 207
 208     m_minVirtualWidth =
 209     m_maxVirtualWidth = wxDefaultCoord;
 210     m_minVirtualHeight =
 211     m_maxVirtualHeight = wxDefaultCoord;
 212
 213     m_windowVariant = wxWINDOW_VARIANT_NORMAL;
 214 #if wxUSE_SYSTEM_OPTIONS
 215     if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) )
 216     {
 217        m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ;
 218     }
 219 #endif
 220
 221     // Whether we're using the current theme for this window (wxGTK only for now)
 222     m_themeEnabled = false;
 223
 224     // VZ: this one shouldn't exist...
 225     m_isBeingDeleted = false;
 226 }
 227
 228 // common part of window creation process
 229 bool wxWindowBase::CreateBase(wxWindowBase *parent,
 230                               wxWindowID id,
 231                               const wxPoint& WXUNUSED(pos),
 232                               const wxSize& WXUNUSED(size),
 233                               long style,
 234                               const wxValidator& wxVALIDATOR_PARAM(validator),
 235                               const wxString& name)
 236 {
 237 #if wxUSE_STATBOX
 238     // wxGTK doesn't allow to create controls with static box as the parent so
 239     // this will result in a crash when the program is ported to wxGTK so warn
 240     // the user about it
 241
 242     // if you get this assert, the correct solution is to create the controls
 243     // as siblings of the static box
 244     wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
 245                   _T("wxStaticBox can't be used as a window parent!") );
 246 #endif // wxUSE_STATBOX
 247
 248     // ids are limited to 16 bits under MSW so if you care about portability,
 249     // it's not a good idea to use ids out of this range (and negative ids are
 250     // reserved for wxWidgets own usage)
 251     wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
 252                   _T("invalid id value") );
 253
 254     // generate a new id if the user doesn't care about it
 255     m_windowId = id == wxID_ANY ? NewControlId() : id;
 256
 257     SetName(name);
 258     SetWindowStyleFlag(style);
 259     SetParent(parent);
 260
 261 #if wxUSE_VALIDATORS
 262     SetValidator(validator);
 263 #endif // wxUSE_VALIDATORS
 264
 265     // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
 266     // have it too - like this it's possible to set it only in the top level
 267     // dialog/frame and all children will inherit it by defult
 268     if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
 269     {
 270         SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
 271     }
 272
 273     return true;
 274 }
 275
 276 // ----------------------------------------------------------------------------
 277 // destruction
 278 // ----------------------------------------------------------------------------
 279
 280 // common clean up
 281 wxWindowBase::~wxWindowBase()
 282 {
 283     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 284
 285     // FIXME if these 2 cases result from programming errors in the user code
 286     //       we should probably assert here instead of silently fixing them
 287
 288     // Just in case the window has been Closed, but we're then deleting
 289     // immediately: don't leave dangling pointers.
 290     wxPendingDelete.DeleteObject(this);
 291
 292     // Just in case we've loaded a top-level window via LoadNativeDialog but
 293     // we weren't a dialog class
 294     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 295
 296     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 297
 298     // reset the dangling pointer our parent window may keep to us
 299     if ( m_parent )
 300     {
 301         if ( m_parent->GetDefaultItem() == this )
 302         {
 303             m_parent->SetDefaultItem(NULL);
 304         }
 305
 306         m_parent->RemoveChild(this);
 307     }
 308
 309 #if wxUSE_CARET
 310     delete m_caret;
 311 #endif // wxUSE_CARET
 312
 313 #if wxUSE_VALIDATORS
 314     delete m_windowValidator;
 315 #endif // wxUSE_VALIDATORS
 316
 317 #if wxUSE_CONSTRAINTS
 318     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
 319     // at deleted windows as they delete themselves.
 320     DeleteRelatedConstraints();
 321
 322     if ( m_constraints )
 323     {
 324         // This removes any dangling pointers to this window in other windows'
 325         // constraintsInvolvedIn lists.
 326         UnsetConstraints(m_constraints);
 327         delete m_constraints;
 328         m_constraints = NULL;
 329     }
 330 #endif // wxUSE_CONSTRAINTS
 331
 332     if ( m_containingSizer )
 333         m_containingSizer->Detach( (wxWindow*)this );
 334
 335     delete m_windowSizer;
 336
 337 #if wxUSE_DRAG_AND_DROP
 338     delete m_dropTarget;
 339 #endif // wxUSE_DRAG_AND_DROP
 340
 341 #if wxUSE_TOOLTIPS
 342     delete m_tooltip;
 343 #endif // wxUSE_TOOLTIPS
 344
 345 #if wxUSE_ACCESSIBILITY
 346     delete m_accessible;
 347 #endif
 348 }
 349
 350 bool wxWindowBase::Destroy()
 351 {
 352     delete this;
 353
 354     return true;
 355 }
 356
 357 bool wxWindowBase::Close(bool force)
 358 {
 359     wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
 360     event.SetEventObject(this);
 361     event.SetCanVeto(!force);
 362
 363     // return false if window wasn't closed because the application vetoed the
 364     // close event
 365     return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
 366 }
 367
 368 bool wxWindowBase::DestroyChildren()
 369 {
 370     wxWindowList::compatibility_iterator node;
 371     for ( ;; )
 372     {
 373         // we iterate until the list becomes empty
 374         node = GetChildren().GetFirst();
 375         if ( !node )
 376             break;
 377
 378         wxWindow *child = node->GetData();
 379
 380         // note that we really want to call delete and not ->Destroy() here
 381         // because we want to delete the child immediately, before we are
 382         // deleted, and delayed deletion would result in problems as our (top
 383         // level) child could outlive its parent
 384         delete child;
 385
 386         wxASSERT_MSG( !GetChildren().Find(child),
 387                       wxT("child didn't remove itself using RemoveChild()") );
 388     }
 389
 390     return true;
 391 }
 392
 393 // ----------------------------------------------------------------------------
 394 // size/position related methods
 395 // ----------------------------------------------------------------------------
 396
 397 // centre the window with respect to its parent in either (or both) directions
 398 void wxWindowBase::DoCentre(int dir)
 399 {
 400     wxCHECK_RET( !(dir & wxCENTRE_ON_SCREEN) && GetParent(),
 401                  _T("this method only implements centering child windows") );
 402
 403     SetSize(GetRect().CentreIn(GetParent()->GetClientSize(), dir));
 404 }
 405
 406 // fits the window around the children
 407 void wxWindowBase::Fit()
 408 {
 409     if ( !GetChildren().empty() )
 410     {
 411         SetClientSize(GetBestSize());
 412     }
 413     //else: do nothing if we have no children
 414 }
 415
 416 // fits virtual size (ie. scrolled area etc.) around children
 417 void wxWindowBase::FitInside()
 418 {
 419     if ( GetChildren().GetCount() > 0 )
 420     {
 421         SetVirtualSize( GetBestVirtualSize() );
 422     }
 423 }
 424
 425 // On Mac, scrollbars are explicitly children.
 426 #ifdef __WXMAC__
 427 static bool wxHasRealChildren(const wxWindowBase* win)
 428 {
 429     int realChildCount = 0;
 430
 431     for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
 432           node;
 433           node = node->GetNext() )
 434     {
 435         wxWindow *win = node->GetData();
 436         if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
 437             realChildCount ++;
 438     }
 439     return (realChildCount > 0);
 440 }
 441 #endif
 442
 443 void wxWindowBase::InvalidateBestSize()
 444 {
 445     m_bestSizeCache = wxDefaultSize;
 446
 447     // parent's best size calculation may depend on its children's
 448     // as long as child window we are in is not top level window itself
 449     // (because the TLW size is never resized automatically)
 450     // so let's invalidate it as well to be safe:
 451     if (m_parent && !IsTopLevel())
 452         m_parent->InvalidateBestSize();
 453 }
 454
 455 // return the size best suited for the current window
 456 wxSize wxWindowBase::DoGetBestSize() const
 457 {
 458     wxSize best;
 459
 460     if ( m_windowSizer )
 461     {
 462         best = GetWindowSizeForVirtualSize(m_windowSizer->GetMinSize());
 463     }
 464 #if wxUSE_CONSTRAINTS
 465     else if ( m_constraints )
 466     {
 467         wxConstCast(this, wxWindowBase)->SatisfyConstraints();
 468
 469         // our minimal acceptable size is such that all our windows fit inside
 470         int maxX = 0,
 471             maxY = 0;
 472
 473         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 474               node;
 475               node = node->GetNext() )
 476         {
 477             wxLayoutConstraints *c = node->GetData()->GetConstraints();
 478             if ( !c )
 479             {
 480                 // it's not normal that we have an unconstrained child, but
 481                 // what can we do about it?
 482                 continue;
 483             }
 484
 485             int x = c->right.GetValue(),
 486                 y = c->bottom.GetValue();
 487
 488             if ( x > maxX )
 489                 maxX = x;
 490
 491             if ( y > maxY )
 492                 maxY = y;
 493
 494             // TODO: we must calculate the overlaps somehow, otherwise we
 495             //       will never return a size bigger than the current one :-(
 496         }
 497
 498         best = wxSize(maxX, maxY);
 499     }
 500 #endif // wxUSE_CONSTRAINTS
 501     else if ( !GetChildren().empty()
 502 #ifdef __WXMAC__
 503               && wxHasRealChildren(this)
 504 #endif
 505               )
 506     {
 507         // our minimal acceptable size is such that all our visible child windows fit inside
 508         int maxX = 0,
 509             maxY = 0;
 510
 511         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 512               node;
 513               node = node->GetNext() )
 514         {
 515             wxWindow *win = node->GetData();
 516             if ( win->IsTopLevel()  || ( ! win->IsShown() )
 517 #if wxUSE_STATUSBAR
 518                     || wxDynamicCast(win, wxStatusBar)
 519 #endif // wxUSE_STATUSBAR
 520                )
 521             {
 522                 // dialogs and frames lie in different top level windows -
 523                 // don't deal with them here; as for the status bars, they
 524                 // don't lie in the client area at all
 525                 continue;
 526             }
 527
 528             int wx, wy, ww, wh;
 529             win->GetPosition(&wx, &wy);
 530
 531             // if the window hadn't been positioned yet, assume that it is in
 532             // the origin
 533             if ( wx == wxDefaultCoord )
 534                 wx = 0;
 535             if ( wy == wxDefaultCoord )
 536                 wy = 0;
 537
 538             win->GetSize(&ww, &wh);
 539             if ( wx + ww > maxX )
 540                 maxX = wx + ww;
 541             if ( wy + wh > maxY )
 542                 maxY = wy + wh;
 543         }
 544
 545         // for compatibility with the old versions and because it really looks
 546         // slightly more pretty like this, add a pad
 547         maxX += 7;
 548         maxY += 14;
 549
 550         best = wxSize(maxX, maxY);
 551     }
 552     else // ! has children
 553     {
 554         // for a generic window there is no natural best size so, if the
 555         // minimal size is not set, use the current size but take care to
 556         // remember it as minimal size for the next time because our best size
 557         // should be constant: otherwise we could get into a situation when the
 558         // window is initially at some size, then expanded to a larger size and
 559         // then, when the containing window is shrunk back (because our initial
 560         // best size had been used for computing the parent min size), we can't
 561         // be shrunk back any more because our best size is now bigger
 562         wxSize size = GetMinSize();
 563         if ( !size.IsFullySpecified() )
 564         {
 565             size.SetDefaults(GetSize());
 566             wxConstCast(this, wxWindowBase)->SetMinSize(size);
 567         }
 568
 569         // return as-is, unadjusted by the client size difference.
 570         return size;
 571     }
 572
 573     // Add any difference between size and client size
 574     wxSize diff = GetSize() - GetClientSize();
 575     best.x += wxMax(0, diff.x);
 576     best.y += wxMax(0, diff.y);
 577
 578     return best;
 579 }
 580
 581
 582 wxSize wxWindowBase::GetBestFittingSize() const
 583 {
 584     // merge the best size with the min size, giving priority to the min size
 585     wxSize min = GetMinSize();
 586     if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
 587     {
 588         wxSize best = GetBestSize();
 589         if (min.x == wxDefaultCoord) min.x =  best.x;
 590         if (min.y == wxDefaultCoord) min.y =  best.y;
 591     }
 592     return min;
 593 }
 594
 595
 596 void wxWindowBase::SetBestFittingSize(const wxSize& size)
 597 {
 598     // Set the min size to the size passed in.  This will usually either be
 599     // wxDefaultSize or the size passed to this window's ctor/Create function.
 600     SetMinSize(size);
 601
 602     // Merge the size with the best size if needed
 603     wxSize best = GetBestFittingSize();
 604
 605     // If the current size doesn't match then change it
 606     if (GetSize() != best)
 607         SetSize(best);
 608 }
 609
 610
 611 // by default the origin is not shifted
 612 wxPoint wxWindowBase::GetClientAreaOrigin() const
 613 {
 614     return wxPoint(0,0);
 615 }
 616
 617 // set the min/max size of the window
 618 void wxWindowBase::DoSetSizeHints(int minW, int minH,
 619                                   int maxW, int maxH,
 620                                   int WXUNUSED(incW), int WXUNUSED(incH))
 621 {
 622     // setting min width greater than max width leads to infinite loops under
 623     // X11 and generally doesn't make any sense, so don't allow it
 624     wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
 625                     (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
 626                  _T("min width/height must be less than max width/height!") );
 627
 628     m_minWidth = minW;
 629     m_maxWidth = maxW;
 630     m_minHeight = minH;
 631     m_maxHeight = maxH;
 632 }
 633
 634 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 635 {
 636     if ( m_windowVariant != variant )
 637     {
 638         m_windowVariant = variant;
 639
 640         DoSetWindowVariant(variant);
 641     }
 642 }
 643
 644 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
 645 {
 646     // adjust the font height to correspond to our new variant (notice that
 647     // we're only called if something really changed)
 648     wxFont font = GetFont();
 649     int size = font.GetPointSize();
 650     switch ( variant )
 651     {
 652         case wxWINDOW_VARIANT_NORMAL:
 653             break;
 654
 655         case wxWINDOW_VARIANT_SMALL:
 656             size *= 3;
 657             size /= 4;
 658             break;
 659
 660         case wxWINDOW_VARIANT_MINI:
 661             size *= 2;
 662             size /= 3;
 663             break;
 664
 665         case wxWINDOW_VARIANT_LARGE:
 666             size *= 5;
 667             size /= 4;
 668             break;
 669
 670         default:
 671             wxFAIL_MSG(_T("unexpected window variant"));
 672             break;
 673     }
 674
 675     font.SetPointSize(size);
 676     SetFont(font);
 677 }
 678
 679 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
 680                                         int maxW, int maxH )
 681 {
 682     m_minVirtualWidth = minW;
 683     m_maxVirtualWidth = maxW;
 684     m_minVirtualHeight = minH;
 685     m_maxVirtualHeight = maxH;
 686 }
 687
 688 void wxWindowBase::DoSetVirtualSize( int x, int y )
 689 {
 690     if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
 691         x = m_minVirtualWidth;
 692     if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
 693         x = m_maxVirtualWidth;
 694     if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
 695         y = m_minVirtualHeight;
 696     if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
 697         y = m_maxVirtualHeight;
 698
 699     m_virtualSize = wxSize(x, y);
 700 }
 701
 702 wxSize wxWindowBase::DoGetVirtualSize() const
 703 {
 704     // we should use the entire client area so if it is greater than our
 705     // virtual size, expand it to fit (otherwise if the window is big enough we
 706     // wouldn't be using parts of it)
 707     wxSize size = GetClientSize();
 708     if ( m_virtualSize.x > size.x )
 709         size.x = m_virtualSize.x;
 710
 711     if ( m_virtualSize.y >= size.y )
 712         size.y = m_virtualSize.y;
 713
 714     return size;
 715 }
 716
 717 void wxWindowBase::DoGetScreenPosition(int *x, int *y) const
 718 {
 719     // screen position is the same as (0, 0) in client coords for non TLWs (and
 720     // TLWs override this method)
 721     if ( x )
 722         *x = 0;
 723     if ( y )
 724         *y = 0;
 725
 726     ClientToScreen(x, y);
 727 }
 728
 729 // ----------------------------------------------------------------------------
 730 // show/hide/enable/disable the window
 731 // ----------------------------------------------------------------------------
 732
 733 bool wxWindowBase::Show(bool show)
 734 {
 735     if ( show != m_isShown )
 736     {
 737         m_isShown = show;
 738
 739         return true;
 740     }
 741     else
 742     {
 743         return false;
 744     }
 745 }
 746
 747 bool wxWindowBase::Enable(bool enable)
 748 {
 749     if ( enable != m_isEnabled )
 750     {
 751         m_isEnabled = enable;
 752
 753         return true;
 754     }
 755     else
 756     {
 757         return false;
 758     }
 759 }
 760 // ----------------------------------------------------------------------------
 761 // RTTI
 762 // ----------------------------------------------------------------------------
 763
 764 bool wxWindowBase::IsTopLevel() const
 765 {
 766     return false;
 767 }
 768
 769 // ----------------------------------------------------------------------------
 770 // reparenting the window
 771 // ----------------------------------------------------------------------------
 772
 773 void wxWindowBase::AddChild(wxWindowBase *child)
 774 {
 775     wxCHECK_RET( child, wxT("can't add a NULL child") );
 776
 777     // this should never happen and it will lead to a crash later if it does
 778     // because RemoveChild() will remove only one node from the children list
 779     // and the other(s) one(s) will be left with dangling pointers in them
 780     wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
 781
 782     GetChildren().Append((wxWindow*)child);
 783     child->SetParent(this);
 784 }
 785
 786 void wxWindowBase::RemoveChild(wxWindowBase *child)
 787 {
 788     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 789
 790     GetChildren().DeleteObject((wxWindow *)child);
 791     child->SetParent(NULL);
 792 }
 793
 794 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 795 {
 796     wxWindow *oldParent = GetParent();
 797     if ( newParent == oldParent )
 798     {
 799         // nothing done
 800         return false;
 801     }
 802
 803     // unlink this window from the existing parent.
 804     if ( oldParent )
 805     {
 806         oldParent->RemoveChild(this);
 807     }
 808     else
 809     {
 810         wxTopLevelWindows.DeleteObject((wxWindow *)this);
 811     }
 812
 813     // add it to the new one
 814     if ( newParent )
 815     {
 816         newParent->AddChild(this);
 817     }
 818     else
 819     {
 820         wxTopLevelWindows.Append((wxWindow *)this);
 821     }
 822
 823     return true;
 824 }
 825
 826 // ----------------------------------------------------------------------------
 827 // event handler stuff
 828 // ----------------------------------------------------------------------------
 829
 830 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
 831 {
 832     wxEvtHandler *handlerOld = GetEventHandler();
 833
 834     handler->SetNextHandler(handlerOld);
 835
 836     if ( handlerOld )
 837         GetEventHandler()->SetPreviousHandler(handler);
 838
 839     SetEventHandler(handler);
 840 }
 841
 842 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 843 {
 844     wxEvtHandler *handlerA = GetEventHandler();
 845     if ( handlerA )
 846     {
 847         wxEvtHandler *handlerB = handlerA->GetNextHandler();
 848         handlerA->SetNextHandler((wxEvtHandler *)NULL);
 849
 850         if ( handlerB )
 851             handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
 852         SetEventHandler(handlerB);
 853
 854         if ( deleteHandler )
 855         {
 856             delete handlerA;
 857             handlerA = (wxEvtHandler *)NULL;
 858         }
 859     }
 860
 861     return handlerA;
 862 }
 863
 864 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
 865 {
 866     wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
 867
 868     wxEvtHandler *handlerPrev = NULL,
 869                  *handlerCur = GetEventHandler();
 870     while ( handlerCur )
 871     {
 872         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 873
 874         if ( handlerCur == handler )
 875         {
 876             if ( handlerPrev )
 877             {
 878                 handlerPrev->SetNextHandler(handlerNext);
 879             }
 880             else
 881             {
 882                 SetEventHandler(handlerNext);
 883             }
 884
 885             if ( handlerNext )
 886             {
 887                 handlerNext->SetPreviousHandler ( handlerPrev );
 888             }
 889
 890             handler->SetNextHandler(NULL);
 891             handler->SetPreviousHandler(NULL);
 892
 893             return true;
 894         }
 895
 896         handlerPrev = handlerCur;
 897         handlerCur = handlerNext;
 898     }
 899
 900     wxFAIL_MSG( _T("where has the event handler gone?") );
 901
 902     return false;
 903 }
 904
 905 // ----------------------------------------------------------------------------
 906 // colours, fonts &c
 907 // ----------------------------------------------------------------------------
 908
 909 void wxWindowBase::InheritAttributes()
 910 {
 911     const wxWindowBase * const parent = GetParent();
 912     if ( !parent )
 913         return;
 914
 915     // we only inherit attributes which had been explicitly set for the parent
 916     // which ensures that this only happens if the user really wants it and
 917     // not by default which wouldn't make any sense in modern GUIs where the
 918     // controls don't all use the same fonts (nor colours)
 919     if ( parent->m_inheritFont && !m_hasFont )
 920         SetFont(parent->GetFont());
 921
 922     // in addition, there is a possibility to explicitly forbid inheriting
 923     // colours at each class level by overriding ShouldInheritColours()
 924     if ( ShouldInheritColours() )
 925     {
 926         if ( parent->m_inheritFgCol && !m_hasFgCol )
 927             SetForegroundColour(parent->GetForegroundColour());
 928
 929         // inheriting (solid) background colour is wrong as it totally breaks
 930         // any kind of themed backgrounds
 931         //
 932         // instead, the controls should use the same background as their parent
 933         // (ideally by not drawing it at all)
 934 #if 0
 935         if ( parent->m_inheritBgCol && !m_hasBgCol )
 936             SetBackgroundColour(parent->GetBackgroundColour());
 937 #endif // 0
 938     }
 939 }
 940
 941 /* static */ wxVisualAttributes
 942 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 943 {
 944     // it is important to return valid values for all attributes from here,
 945     // GetXXX() below rely on this
 946     wxVisualAttributes attrs;
 947     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 948     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
 949
 950     // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
 951     // the usual background colour than wxSYS_COLOUR_BTNFACE.
 952     // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
 953     // colour on other platforms.
 954
 955 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
 956     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
 957 #else
 958     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
 959 #endif
 960     return attrs;
 961 }
 962
 963 wxColour wxWindowBase::GetBackgroundColour() const
 964 {
 965     if ( !m_backgroundColour.Ok() )
 966     {
 967         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
 968
 969         // get our default background colour
 970         wxColour colBg = GetDefaultAttributes().colBg;
 971
 972         // we must return some valid colour to avoid redoing this every time
 973         // and also to avoid surprizing the applications written for older
 974         // wxWidgets versions where GetBackgroundColour() always returned
 975         // something -- so give them something even if it doesn't make sense
 976         // for this window (e.g. it has a themed background)
 977         if ( !colBg.Ok() )
 978             colBg = GetClassDefaultAttributes().colBg;
 979
 980         return colBg;
 981     }
 982     else
 983         return m_backgroundColour;
 984 }
 985
 986 wxColour wxWindowBase::GetForegroundColour() const
 987 {
 988     // logic is the same as above
 989     if ( !m_hasFgCol && !m_foregroundColour.Ok() )
 990     {
 991         wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
 992
 993         wxColour colFg = GetDefaultAttributes().colFg;
 994
 995         if ( !colFg.Ok() )
 996             colFg = GetClassDefaultAttributes().colFg;
 997
 998         return colFg;
 999     }
1000     else
1001         return m_foregroundColour;
1002 }
1003
1004 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
1005 {
1006     if ( colour == m_backgroundColour )
1007         return false;
1008
1009     m_hasBgCol = colour.Ok();
1010     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
1011         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
1012
1013     m_inheritBgCol = m_hasBgCol;
1014     m_backgroundColour = colour;
1015     SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1016     return true;
1017 }
1018
1019 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1020 {
1021     if (colour == m_foregroundColour )
1022         return false;
1023
1024     m_hasFgCol = colour.Ok();
1025     m_inheritFgCol = m_hasFgCol;
1026     m_foregroundColour = colour;
1027     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1028     return true;
1029 }
1030
1031 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1032 {
1033     // setting an invalid cursor is ok, it means that we don't have any special
1034     // cursor
1035     if ( m_cursor == cursor )
1036     {
1037         // no change
1038         return false;
1039     }
1040
1041     m_cursor = cursor;
1042
1043     return true;
1044 }
1045
1046 wxFont wxWindowBase::GetFont() const
1047 {
1048     // logic is the same as in GetBackgroundColour()
1049     if ( !m_font.Ok() )
1050     {
1051         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1052
1053         wxFont font = GetDefaultAttributes().font;
1054         if ( !font.Ok() )
1055             font = GetClassDefaultAttributes().font;
1056
1057         return font;
1058     }
1059     else
1060         return m_font;
1061 }
1062
1063 bool wxWindowBase::SetFont(const wxFont& font)
1064 {
1065     if ( font == m_font )
1066     {
1067         // no change
1068         return false;
1069     }
1070
1071     m_font = font;
1072     m_hasFont = font.Ok();
1073     m_inheritFont = m_hasFont;
1074
1075     InvalidateBestSize();
1076
1077     return true;
1078 }
1079
1080 #if wxUSE_PALETTE
1081
1082 void wxWindowBase::SetPalette(const wxPalette& pal)
1083 {
1084     m_hasCustomPalette = true;
1085     m_palette = pal;
1086
1087     // VZ: can anyone explain me what do we do here?
1088     wxWindowDC d((wxWindow *) this);
1089     d.SetPalette(pal);
1090 }
1091
1092 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1093 {
1094     wxWindow *win = (wxWindow *)this;
1095     while ( win && !win->HasCustomPalette() )
1096     {
1097         win = win->GetParent();
1098     }
1099
1100     return win;
1101 }
1102
1103 #endif // wxUSE_PALETTE
1104
1105 #if wxUSE_CARET
1106 void wxWindowBase::SetCaret(wxCaret *caret)
1107 {
1108     if ( m_caret )
1109     {
1110         delete m_caret;
1111     }
1112
1113     m_caret = caret;
1114
1115     if ( m_caret )
1116     {
1117         wxASSERT_MSG( m_caret->GetWindow() == this,
1118                       wxT("caret should be created associated to this window") );
1119     }
1120 }
1121 #endif // wxUSE_CARET
1122
1123 #if wxUSE_VALIDATORS
1124 // ----------------------------------------------------------------------------
1125 // validators
1126 // ----------------------------------------------------------------------------
1127
1128 void wxWindowBase::SetValidator(const wxValidator& validator)
1129 {
1130     if ( m_windowValidator )
1131         delete m_windowValidator;
1132
1133     m_windowValidator = (wxValidator *)validator.Clone();
1134
1135     if ( m_windowValidator )
1136         m_windowValidator->SetWindow(this);
1137 }
1138 #endif // wxUSE_VALIDATORS
1139
1140 // ----------------------------------------------------------------------------
1141 // update region stuff
1142 // ----------------------------------------------------------------------------
1143
1144 wxRect wxWindowBase::GetUpdateClientRect() const
1145 {
1146     wxRegion rgnUpdate = GetUpdateRegion();
1147     rgnUpdate.Intersect(GetClientRect());
1148     wxRect rectUpdate = rgnUpdate.GetBox();
1149     wxPoint ptOrigin = GetClientAreaOrigin();
1150     rectUpdate.x -= ptOrigin.x;
1151     rectUpdate.y -= ptOrigin.y;
1152
1153     return rectUpdate;
1154 }
1155
1156 bool wxWindowBase::IsExposed(int x, int y) const
1157 {
1158     return m_updateRegion.Contains(x, y) != wxOutRegion;
1159 }
1160
1161 bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
1162 {
1163     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1164 }
1165
1166 void wxWindowBase::ClearBackground()
1167 {
1168     // wxGTK uses its own version, no need to add never used code
1169 #ifndef __WXGTK__
1170     wxClientDC dc((wxWindow *)this);
1171     wxBrush brush(GetBackgroundColour(), wxSOLID);
1172     dc.SetBackground(brush);
1173     dc.Clear();
1174 #endif // __WXGTK__
1175 }
1176
1177 // ----------------------------------------------------------------------------
1178 // find child window by id or name
1179 // ----------------------------------------------------------------------------
1180
1181 wxWindow *wxWindowBase::FindWindow(long id) const
1182 {
1183     if ( id == m_windowId )
1184         return (wxWindow *)this;
1185
1186     wxWindowBase *res = (wxWindow *)NULL;
1187     wxWindowList::compatibility_iterator node;
1188     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1189     {
1190         wxWindowBase *child = node->GetData();
1191         res = child->FindWindow( id );
1192     }
1193
1194     return (wxWindow *)res;
1195 }
1196
1197 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1198 {
1199     if ( name == m_windowName )
1200         return (wxWindow *)this;
1201
1202     wxWindowBase *res = (wxWindow *)NULL;
1203     wxWindowList::compatibility_iterator node;
1204     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1205     {
1206         wxWindow *child = node->GetData();
1207         res = child->FindWindow(name);
1208     }
1209
1210     return (wxWindow *)res;
1211 }
1212
1213
1214 // find any window by id or name or label: If parent is non-NULL, look through
1215 // children for a label or title matching the specified string. If NULL, look
1216 // through all top-level windows.
1217 //
1218 // to avoid duplicating code we reuse the same helper function but with
1219 // different comparators
1220
1221 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1222                                 const wxString& label, long id);
1223
1224 static
1225 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1226                            long WXUNUSED(id))
1227 {
1228     return win->GetLabel() == label;
1229 }
1230
1231 static
1232 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1233                           long WXUNUSED(id))
1234 {
1235     return win->GetName() == label;
1236 }
1237
1238 static
1239 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1240                         long id)
1241 {
1242     return win->GetId() == id;
1243 }
1244
1245 // recursive helper for the FindWindowByXXX() functions
1246 static
1247 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1248                                   const wxString& label,
1249                                   long id,
1250                                   wxFindWindowCmp cmp)
1251 {
1252     if ( parent )
1253     {
1254         // see if this is the one we're looking for
1255         if ( (*cmp)(parent, label, id) )
1256             return (wxWindow *)parent;
1257
1258         // It wasn't, so check all its children
1259         for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1260               node;
1261               node = node->GetNext() )
1262         {
1263             // recursively check each child
1264             wxWindow *win = (wxWindow *)node->GetData();
1265             wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1266             if (retwin)
1267                 return retwin;
1268         }
1269     }
1270
1271     // Not found
1272     return NULL;
1273 }
1274
1275 // helper for FindWindowByXXX()
1276 static
1277 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1278                              const wxString& label,
1279                              long id,
1280                              wxFindWindowCmp cmp)
1281 {
1282     if ( parent )
1283     {
1284         // just check parent and all its children
1285         return wxFindWindowRecursively(parent, label, id, cmp);
1286     }
1287
1288     // start at very top of wx's windows
1289     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1290           node;
1291           node = node->GetNext() )
1292     {
1293         // recursively check each window & its children
1294         wxWindow *win = node->GetData();
1295         wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1296         if (retwin)
1297             return retwin;
1298     }
1299
1300     return NULL;
1301 }
1302
1303 /* static */
1304 wxWindow *
1305 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1306 {
1307     return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1308 }
1309
1310 /* static */
1311 wxWindow *
1312 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1313 {
1314     wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1315
1316     if ( !win )
1317     {
1318         // fall back to the label
1319         win = FindWindowByLabel(title, parent);
1320     }
1321
1322     return win;
1323 }
1324
1325 /* static */
1326 wxWindow *
1327 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1328 {
1329     return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1330 }
1331
1332 // ----------------------------------------------------------------------------
1333 // dialog oriented functions
1334 // ----------------------------------------------------------------------------
1335
1336 void wxWindowBase::MakeModal(bool modal)
1337 {
1338     // Disable all other windows
1339     if ( IsTopLevel() )
1340     {
1341         wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1342         while (node)
1343         {
1344             wxWindow *win = node->GetData();
1345             if (win != this)
1346                 win->Enable(!modal);
1347
1348             node = node->GetNext();
1349         }
1350     }
1351 }
1352
1353 bool wxWindowBase::Validate()
1354 {
1355 #if wxUSE_VALIDATORS
1356     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1357
1358     wxWindowList::compatibility_iterator node;
1359     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1360     {
1361         wxWindowBase *child = node->GetData();
1362         wxValidator *validator = child->GetValidator();
1363         if ( validator && !validator->Validate((wxWindow *)this) )
1364         {
1365             return false;
1366         }
1367
1368         if ( recurse && !child->Validate() )
1369         {
1370             return false;
1371         }
1372     }
1373 #endif // wxUSE_VALIDATORS
1374
1375     return true;
1376 }
1377
1378 bool wxWindowBase::TransferDataToWindow()
1379 {
1380 #if wxUSE_VALIDATORS
1381     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1382
1383     wxWindowList::compatibility_iterator node;
1384     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1385     {
1386         wxWindowBase *child = node->GetData();
1387         wxValidator *validator = child->GetValidator();
1388         if ( validator && !validator->TransferToWindow() )
1389         {
1390             wxLogWarning(_("Could not transfer data to window"));
1391 #if wxUSE_LOG
1392             wxLog::FlushActive();
1393 #endif // wxUSE_LOG
1394
1395             return false;
1396         }
1397
1398         if ( recurse )
1399         {
1400             if ( !child->TransferDataToWindow() )
1401             {
1402                 // warning already given
1403                 return false;
1404             }
1405         }
1406     }
1407 #endif // wxUSE_VALIDATORS
1408
1409     return true;
1410 }
1411
1412 bool wxWindowBase::TransferDataFromWindow()
1413 {
1414 #if wxUSE_VALIDATORS
1415     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1416
1417     wxWindowList::compatibility_iterator node;
1418     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1419     {
1420         wxWindow *child = node->GetData();
1421         wxValidator *validator = child->GetValidator();
1422         if ( validator && !validator->TransferFromWindow() )
1423         {
1424             // nop warning here because the application is supposed to give
1425             // one itself - we don't know here what might have gone wrongly
1426
1427             return false;
1428         }
1429
1430         if ( recurse )
1431         {
1432             if ( !child->TransferDataFromWindow() )
1433             {
1434                 // warning already given
1435                 return false;
1436             }
1437         }
1438     }
1439 #endif // wxUSE_VALIDATORS
1440
1441     return true;
1442 }
1443
1444 void wxWindowBase::InitDialog()
1445 {
1446     wxInitDialogEvent event(GetId());
1447     event.SetEventObject( this );
1448     GetEventHandler()->ProcessEvent(event);
1449 }
1450
1451 // ----------------------------------------------------------------------------
1452 // context-sensitive help support
1453 // ----------------------------------------------------------------------------
1454
1455 #if wxUSE_HELP
1456
1457 // associate this help text with this window
1458 void wxWindowBase::SetHelpText(const wxString& text)
1459 {
1460     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1461     if ( helpProvider )
1462     {
1463         helpProvider->AddHelp(this, text);
1464     }
1465 }
1466
1467 // associate this help text with all windows with the same id as this
1468 // one
1469 void wxWindowBase::SetHelpTextForId(const wxString& text)
1470 {
1471     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1472     if ( helpProvider )
1473     {
1474         helpProvider->AddHelp(GetId(), text);
1475     }
1476 }
1477
1478 // get the help string associated with this window (may be empty)
1479 wxString wxWindowBase::GetHelpText() const
1480 {
1481     wxString text;
1482     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1483     if ( helpProvider )
1484     {
1485         text = helpProvider->GetHelp(this);
1486     }
1487
1488     return text;
1489 }
1490
1491 // show help for this window
1492 void wxWindowBase::OnHelp(wxHelpEvent& event)
1493 {
1494     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1495     if ( helpProvider )
1496     {
1497         if ( helpProvider->ShowHelp(this) )
1498         {
1499             // skip the event.Skip() below
1500             return;
1501         }
1502     }
1503
1504     event.Skip();
1505 }
1506
1507 #endif // wxUSE_HELP
1508
1509 // ----------------------------------------------------------------------------
1510 // tooltipsroot.Replace("\\", "/");
1511 // ----------------------------------------------------------------------------
1512
1513 #if wxUSE_TOOLTIPS
1514
1515 void wxWindowBase::SetToolTip( const wxString &tip )
1516 {
1517     // don't create the new tooltip if we already have one
1518     if ( m_tooltip )
1519     {
1520         m_tooltip->SetTip( tip );
1521     }
1522     else
1523     {
1524         SetToolTip( new wxToolTip( tip ) );
1525     }
1526
1527     // setting empty tooltip text does not remove the tooltip any more - use
1528     // SetToolTip((wxToolTip *)NULL) for this
1529 }
1530
1531 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1532 {
1533     if ( m_tooltip != tooltip )
1534     {
1535         if ( m_tooltip )
1536             delete m_tooltip;
1537
1538         m_tooltip = tooltip;
1539     }
1540 }
1541
1542 #endif // wxUSE_TOOLTIPS
1543
1544 // ----------------------------------------------------------------------------
1545 // constraints and sizers
1546 // ----------------------------------------------------------------------------
1547
1548 #if wxUSE_CONSTRAINTS
1549
1550 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1551 {
1552     if ( m_constraints )
1553     {
1554         UnsetConstraints(m_constraints);
1555         delete m_constraints;
1556     }
1557     m_constraints = constraints;
1558     if ( m_constraints )
1559     {
1560         // Make sure other windows know they're part of a 'meaningful relationship'
1561         if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1562             m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1563         if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1564             m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1565         if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1566             m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1567         if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1568             m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1569         if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1570             m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1571         if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1572             m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1573         if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1574             m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1575         if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1576             m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1577     }
1578 }
1579
1580 // This removes any dangling pointers to this window in other windows'
1581 // constraintsInvolvedIn lists.
1582 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1583 {
1584     if ( c )
1585     {
1586         if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1587             c->left.GetOtherWindow()->RemoveConstraintReference(this);
1588         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1589             c->top.GetOtherWindow()->RemoveConstraintReference(this);
1590         if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1591             c->right.GetOtherWindow()->RemoveConstraintReference(this);
1592         if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1593             c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1594         if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1595             c->width.GetOtherWindow()->RemoveConstraintReference(this);
1596         if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1597             c->height.GetOtherWindow()->RemoveConstraintReference(this);
1598         if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1599             c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1600         if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1601             c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1602     }
1603 }
1604
1605 // Back-pointer to other windows we're involved with, so if we delete this
1606 // window, we must delete any constraints we're involved with.
1607 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1608 {
1609     if ( !m_constraintsInvolvedIn )
1610         m_constraintsInvolvedIn = new wxWindowList;
1611     if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1612         m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1613 }
1614
1615 // REMOVE back-pointer to other windows we're involved with.
1616 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1617 {
1618     if ( m_constraintsInvolvedIn )
1619         m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1620 }
1621
1622 // Reset any constraints that mention this window
1623 void wxWindowBase::DeleteRelatedConstraints()
1624 {
1625     if ( m_constraintsInvolvedIn )
1626     {
1627         wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1628         while (node)
1629         {
1630             wxWindow *win = node->GetData();
1631             wxLayoutConstraints *constr = win->GetConstraints();
1632
1633             // Reset any constraints involving this window
1634             if ( constr )
1635             {
1636                 constr->left.ResetIfWin(this);
1637                 constr->top.ResetIfWin(this);
1638                 constr->right.ResetIfWin(this);
1639                 constr->bottom.ResetIfWin(this);
1640                 constr->width.ResetIfWin(this);
1641                 constr->height.ResetIfWin(this);
1642                 constr->centreX.ResetIfWin(this);
1643                 constr->centreY.ResetIfWin(this);
1644             }
1645
1646             wxWindowList::compatibility_iterator next = node->GetNext();
1647             m_constraintsInvolvedIn->Erase(node);
1648             node = next;
1649         }
1650
1651         delete m_constraintsInvolvedIn;
1652         m_constraintsInvolvedIn = (wxWindowList *) NULL;
1653     }
1654 }
1655
1656 #endif // wxUSE_CONSTRAINTS
1657
1658 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1659 {
1660     if ( sizer == m_windowSizer)
1661         return;
1662
1663     if ( deleteOld )
1664         delete m_windowSizer;
1665
1666     m_windowSizer = sizer;
1667
1668     SetAutoLayout( sizer != NULL );
1669 }
1670
1671 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1672 {
1673     SetSizer( sizer, deleteOld );
1674     sizer->SetSizeHints( (wxWindow*) this );
1675 }
1676
1677
1678 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1679 {
1680     // adding a window to a sizer twice is going to result in fatal and
1681     // hard to debug problems later because when deleting the second
1682     // associated wxSizerItem we're going to dereference a dangling
1683     // pointer; so try to detect this as early as possible
1684     wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1685                   _T("Adding a window to the same sizer twice?") );
1686
1687     m_containingSizer = sizer;
1688 }
1689
1690 #if wxUSE_CONSTRAINTS
1691
1692 void wxWindowBase::SatisfyConstraints()
1693 {
1694     wxLayoutConstraints *constr = GetConstraints();
1695     bool wasOk = constr && constr->AreSatisfied();
1696
1697     ResetConstraints();   // Mark all constraints as unevaluated
1698
1699     int noChanges = 1;
1700
1701     // if we're a top level panel (i.e. our parent is frame/dialog), our
1702     // own constraints will never be satisfied any more unless we do it
1703     // here
1704     if ( wasOk )
1705     {
1706         while ( noChanges > 0 )
1707         {
1708             LayoutPhase1(&noChanges);
1709         }
1710     }
1711
1712     LayoutPhase2(&noChanges);
1713 }
1714
1715 #endif // wxUSE_CONSTRAINTS
1716
1717 bool wxWindowBase::Layout()
1718 {
1719     // If there is a sizer, use it instead of the constraints
1720     if ( GetSizer() )
1721     {
1722         int w = 0, h = 0;
1723         GetVirtualSize(&w, &h);
1724         GetSizer()->SetDimension( 0, 0, w, h );
1725     }
1726 #if wxUSE_CONSTRAINTS
1727     else
1728     {
1729         SatisfyConstraints(); // Find the right constraints values
1730         SetConstraintSizes(); // Recursively set the real window sizes
1731     }
1732 #endif
1733
1734     return true;
1735 }
1736
1737 #if wxUSE_CONSTRAINTS
1738
1739 // first phase of the constraints evaluation: set our own constraints
1740 bool wxWindowBase::LayoutPhase1(int *noChanges)
1741 {
1742     wxLayoutConstraints *constr = GetConstraints();
1743
1744     return !constr || constr->SatisfyConstraints(this, noChanges);
1745 }
1746
1747 // second phase: set the constraints for our children
1748 bool wxWindowBase::LayoutPhase2(int *noChanges)
1749 {
1750     *noChanges = 0;
1751
1752     // Layout children
1753     DoPhase(1);
1754
1755     // Layout grand children
1756     DoPhase(2);
1757
1758     return true;
1759 }
1760
1761 // Do a phase of evaluating child constraints
1762 bool wxWindowBase::DoPhase(int phase)
1763 {
1764     // the list containing the children for which the constraints are already
1765     // set correctly
1766     wxWindowList succeeded;
1767
1768     // the max number of iterations we loop before concluding that we can't set
1769     // the constraints
1770     static const int maxIterations = 500;
1771
1772     for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1773     {
1774         int noChanges = 0;
1775
1776         // loop over all children setting their constraints
1777         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1778               node;
1779               node = node->GetNext() )
1780         {
1781             wxWindow *child = node->GetData();
1782             if ( child->IsTopLevel() )
1783             {
1784                 // top level children are not inside our client area
1785                 continue;
1786             }
1787
1788             if ( !child->GetConstraints() || succeeded.Find(child) )
1789             {
1790                 // this one is either already ok or nothing we can do about it
1791                 continue;
1792             }
1793
1794             int tempNoChanges = 0;
1795             bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1796                                       : child->LayoutPhase2(&tempNoChanges);
1797             noChanges += tempNoChanges;
1798
1799             if ( success )
1800             {
1801                 succeeded.Append(child);
1802             }
1803         }
1804
1805         if ( !noChanges )
1806         {
1807             // constraints are set
1808             break;
1809         }
1810     }
1811
1812     return true;
1813 }
1814
1815 void wxWindowBase::ResetConstraints()
1816 {
1817     wxLayoutConstraints *constr = GetConstraints();
1818     if ( constr )
1819     {
1820         constr->left.SetDone(false);
1821         constr->top.SetDone(false);
1822         constr->right.SetDone(false);
1823         constr->bottom.SetDone(false);
1824         constr->width.SetDone(false);
1825         constr->height.SetDone(false);
1826         constr->centreX.SetDone(false);
1827         constr->centreY.SetDone(false);
1828     }
1829
1830     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1831     while (node)
1832     {
1833         wxWindow *win = node->GetData();
1834         if ( !win->IsTopLevel() )
1835             win->ResetConstraints();
1836         node = node->GetNext();
1837     }
1838 }
1839
1840 // Need to distinguish between setting the 'fake' size for windows and sizers,
1841 // and setting the real values.
1842 void wxWindowBase::SetConstraintSizes(bool recurse)
1843 {
1844     wxLayoutConstraints *constr = GetConstraints();
1845     if ( constr && constr->AreSatisfied() )
1846     {
1847         int x = constr->left.GetValue();
1848         int y = constr->top.GetValue();
1849         int w = constr->width.GetValue();
1850         int h = constr->height.GetValue();
1851
1852         if ( (constr->width.GetRelationship() != wxAsIs ) ||
1853              (constr->height.GetRelationship() != wxAsIs) )
1854         {
1855             SetSize(x, y, w, h);
1856         }
1857         else
1858         {
1859             // If we don't want to resize this window, just move it...
1860             Move(x, y);
1861         }
1862     }
1863     else if ( constr )
1864     {
1865         wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1866                    GetClassInfo()->GetClassName(),
1867                    GetName().c_str());
1868     }
1869
1870     if ( recurse )
1871     {
1872         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1873         while (node)
1874         {
1875             wxWindow *win = node->GetData();
1876             if ( !win->IsTopLevel() && win->GetConstraints() )
1877                 win->SetConstraintSizes();
1878             node = node->GetNext();
1879         }
1880     }
1881 }
1882
1883 // Only set the size/position of the constraint (if any)
1884 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1885 {
1886     wxLayoutConstraints *constr = GetConstraints();
1887     if ( constr )
1888     {
1889         if ( x != wxDefaultCoord )
1890         {
1891             constr->left.SetValue(x);
1892             constr->left.SetDone(true);
1893         }
1894         if ( y != wxDefaultCoord )
1895         {
1896             constr->top.SetValue(y);
1897             constr->top.SetDone(true);
1898         }
1899         if ( w != wxDefaultCoord )
1900         {
1901             constr->width.SetValue(w);
1902             constr->width.SetDone(true);
1903         }
1904         if ( h != wxDefaultCoord )
1905         {
1906             constr->height.SetValue(h);
1907             constr->height.SetDone(true);
1908         }
1909     }
1910 }
1911
1912 void wxWindowBase::MoveConstraint(int x, int y)
1913 {
1914     wxLayoutConstraints *constr = GetConstraints();
1915     if ( constr )
1916     {
1917         if ( x != wxDefaultCoord )
1918         {
1919             constr->left.SetValue(x);
1920             constr->left.SetDone(true);
1921         }
1922         if ( y != wxDefaultCoord )
1923         {
1924             constr->top.SetValue(y);
1925             constr->top.SetDone(true);
1926         }
1927     }
1928 }
1929
1930 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
1931 {
1932     wxLayoutConstraints *constr = GetConstraints();
1933     if ( constr )
1934     {
1935         *w = constr->width.GetValue();
1936         *h = constr->height.GetValue();
1937     }
1938     else
1939         GetSize(w, h);
1940 }
1941
1942 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
1943 {
1944     wxLayoutConstraints *constr = GetConstraints();
1945     if ( constr )
1946     {
1947         *w = constr->width.GetValue();
1948         *h = constr->height.GetValue();
1949     }
1950     else
1951         GetClientSize(w, h);
1952 }
1953
1954 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
1955 {
1956     wxLayoutConstraints *constr = GetConstraints();
1957     if ( constr )
1958     {
1959         *x = constr->left.GetValue();
1960         *y = constr->top.GetValue();
1961     }
1962     else
1963         GetPosition(x, y);
1964 }
1965
1966 #endif // wxUSE_CONSTRAINTS
1967
1968 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
1969 {
1970     // don't do it for the dialogs/frames - they float independently of their
1971     // parent
1972     if ( !IsTopLevel() )
1973     {
1974         wxWindow *parent = GetParent();
1975         if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
1976         {
1977             wxPoint pt(parent->GetClientAreaOrigin());
1978             x += pt.x;
1979             y += pt.y;
1980         }
1981     }
1982 }
1983
1984 // ----------------------------------------------------------------------------
1985 // do Update UI processing for child controls
1986 // ----------------------------------------------------------------------------
1987
1988 void wxWindowBase::UpdateWindowUI(long flags)
1989 {
1990     wxUpdateUIEvent event(GetId());
1991     event.SetEventObject(this);
1992
1993     if ( GetEventHandler()->ProcessEvent(event) )
1994     {
1995         DoUpdateWindowUI(event);
1996     }
1997
1998     if (flags & wxUPDATE_UI_RECURSE)
1999     {
2000         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2001         while (node)
2002         {
2003             wxWindow* child = (wxWindow*) node->GetData();
2004             child->UpdateWindowUI(flags);
2005             node = node->GetNext();
2006         }
2007     }
2008 }
2009
2010 // do the window-specific processing after processing the update event
2011 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2012 {
2013     if ( event.GetSetEnabled() )
2014         Enable(event.GetEnabled());
2015
2016     if ( event.GetSetShown() )
2017         Show(event.GetShown());
2018 }
2019
2020 #if 0
2021 // call internal idle recursively
2022 // may be obsolete (wait until OnIdle scheme stabilises)
2023 void wxWindowBase::ProcessInternalIdle()
2024 {
2025     OnInternalIdle();
2026
2027     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2028     while (node)
2029     {
2030         wxWindow *child = node->GetData();
2031         child->ProcessInternalIdle();
2032         node = node->GetNext();
2033     }
2034 }
2035 #endif
2036
2037 // ----------------------------------------------------------------------------
2038 // dialog units translations
2039 // ----------------------------------------------------------------------------
2040
2041 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2042 {
2043     int charWidth = GetCharWidth();
2044     int charHeight = GetCharHeight();
2045     wxPoint pt2 = wxDefaultPosition;
2046     if (pt.x != wxDefaultCoord)
2047         pt2.x = (int) ((pt.x * 4) / charWidth);
2048     if (pt.y != wxDefaultCoord)
2049         pt2.y = (int) ((pt.y * 8) / charHeight);
2050
2051     return pt2;
2052 }
2053
2054 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2055 {
2056     int charWidth = GetCharWidth();
2057     int charHeight = GetCharHeight();
2058     wxPoint pt2 = wxDefaultPosition;
2059     if (pt.x != wxDefaultCoord)
2060         pt2.x = (int) ((pt.x * charWidth) / 4);
2061     if (pt.y != wxDefaultCoord)
2062         pt2.y = (int) ((pt.y * charHeight) / 8);
2063
2064     return pt2;
2065 }
2066
2067 // ----------------------------------------------------------------------------
2068 // event handlers
2069 // ----------------------------------------------------------------------------
2070
2071 // propagate the colour change event to the subwindows
2072 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2073 {
2074     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2075     while ( node )
2076     {
2077         // Only propagate to non-top-level windows
2078         wxWindow *win = node->GetData();
2079         if ( !win->IsTopLevel() )
2080         {
2081             wxSysColourChangedEvent event2;
2082             event.SetEventObject(win);
2083             win->GetEventHandler()->ProcessEvent(event2);
2084         }
2085
2086         node = node->GetNext();
2087     }
2088
2089     Refresh();
2090 }
2091
2092 // the default action is to populate dialog with data when it's created,
2093 // and nudge the UI into displaying itself correctly in case
2094 // we've turned the wxUpdateUIEvents frequency down low.
2095 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2096 {
2097     TransferDataToWindow();
2098
2099     // Update the UI at this point
2100     UpdateWindowUI(wxUPDATE_UI_RECURSE);
2101 }
2102
2103 // methods for drawing the sizers in a visible way
2104 #ifdef __WXDEBUG__
2105
2106 static void DrawSizers(wxWindowBase *win);
2107
2108 static void DrawBorder(wxWindowBase *win, const wxRect& rect, bool fill = false)
2109 {
2110     wxClientDC dc((wxWindow *)win);
2111     dc.SetPen(*wxRED_PEN);
2112     dc.SetBrush(fill ? wxBrush(*wxRED, wxCROSSDIAG_HATCH): *wxTRANSPARENT_BRUSH);
2113     dc.DrawRectangle(rect.Deflate(1, 1));
2114 }
2115
2116 static void DrawSizer(wxWindowBase *win, wxSizer *sizer)
2117 {
2118     const wxSizerItemList& items = sizer->GetChildren();
2119     for ( wxSizerItemList::const_iterator i = items.begin(),
2120                                         end = items.end();
2121           i != end;
2122           ++i )
2123     {
2124         wxSizerItem *item = *i;
2125         if ( item->IsSizer() )
2126         {
2127             DrawBorder(win, item->GetRect().Deflate(2));
2128             DrawSizer(win, item->GetSizer());
2129         }
2130         else if ( item->IsSpacer() )
2131         {
2132             DrawBorder(win, item->GetRect().Deflate(2), true);
2133         }
2134         else if ( item->IsWindow() )
2135         {
2136             DrawSizers(item->GetWindow());
2137         }
2138     }
2139 }
2140
2141 static void DrawSizers(wxWindowBase *win)
2142 {
2143     wxSizer *sizer = win->GetSizer();
2144     if ( sizer )
2145     {
2146         DrawBorder(win, win->GetClientSize());
2147         DrawSizer(win, sizer);
2148     }
2149     else // no sizer, still recurse into the children
2150     {
2151         const wxWindowList& children = win->GetChildren();
2152         for ( wxWindowList::const_iterator i = children.begin(),
2153                                          end = children.end();
2154               i != end;
2155               ++i )
2156         {
2157             DrawSizers(*i);
2158         }
2159     }
2160 }
2161
2162 #endif // __WXDEBUG__
2163
2164 // process special middle clicks
2165 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2166 {
2167     if ( event.ControlDown() && event.AltDown() )
2168     {
2169 #ifdef __WXDEBUG__
2170         // Ctrl-Alt-Shift-mclick makes the sizers visible in debug builds
2171         if ( event.ShiftDown() )
2172         {
2173             DrawSizers(this);
2174             return;
2175         }
2176 #endif // __WXDEBUG__
2177
2178 #if wxUSE_MSGDLG
2179         // don't translate these strings
2180         wxString port;
2181
2182 #ifdef __WXUNIVERSAL__
2183         port = _T("Univ/");
2184 #endif // __WXUNIVERSAL__
2185
2186         switch ( wxGetOsVersion() )
2187         {
2188             case wxMOTIF_X:            port += _T("Motif"); break;
2189             case wxMAC:
2190             case wxMAC_DARWIN:         port += _T("Mac"); break;
2191             case wxBEOS:               port += _T("BeOS"); break;
2192             case wxGTK:
2193             case wxGTK_WIN32:
2194             case wxGTK_OS2:
2195             case wxGTK_BEOS:           port += _T("GTK"); break;
2196             case wxWINDOWS:
2197             case wxPENWINDOWS:
2198             case wxWINDOWS_NT:
2199             case wxWIN32S:
2200             case wxWIN95:
2201             case wxWIN386:             port += _T("MS Windows"); break;
2202             case wxMGL_UNIX:
2203             case wxMGL_X:
2204             case wxMGL_WIN32:
2205             case wxMGL_OS2:            port += _T("MGL"); break;
2206             case wxWINDOWS_OS2:
2207             case wxOS2_PM:             port += _T("OS/2"); break;
2208             case wxPALMOS:             port += _T("Palm OS"); break;
2209             case wxWINDOWS_CE:         port += _T("Windows CE (generic)"); break;
2210             case wxWINDOWS_POCKETPC:   port += _T("Windows CE PocketPC"); break;
2211             case wxWINDOWS_SMARTPHONE: port += _T("Windows CE Smartphone"); break;
2212             default:            port += _T("unknown"); break;
2213         }
2214
2215         wxMessageBox(wxString::Format(
2216                                       _T(
2217                                         "       wxWidgets Library (%s port)\nVersion %d.%d.%d%s%s, compiled at %s %s%s\n   Copyright (c) 1995-2006 wxWidgets team"
2218                                         ),
2219                                       port.c_str(),
2220                                       wxMAJOR_VERSION,
2221                                       wxMINOR_VERSION,
2222                                       wxRELEASE_NUMBER,
2223 #if wxUSE_UNICODE
2224                                       L" (Unicode)",
2225 #else
2226                                       "",
2227 #endif
2228 #ifdef __WXDEBUG__
2229                                       _T(" Debug build"),
2230 #else
2231                                       wxEmptyString,
2232 #endif
2233                                       __TDATE__,
2234                                       __TTIME__,
2235 #ifdef __WXGTK__
2236                                       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()
2237 #else
2238                                       ""
2239 #endif
2240                                      ),
2241                      _T("wxWidgets information"),
2242                      wxICON_INFORMATION | wxOK,
2243                      (wxWindow *)this);
2244     }
2245     else
2246 #endif // wxUSE_MSGDLG
2247     {
2248         event.Skip();
2249     }
2250 }
2251
2252 // ----------------------------------------------------------------------------
2253 // accessibility
2254 // ----------------------------------------------------------------------------
2255
2256 #if wxUSE_ACCESSIBILITY
2257 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2258 {
2259     if (m_accessible && (accessible != m_accessible))
2260         delete m_accessible;
2261     m_accessible = accessible;
2262     if (m_accessible)
2263         m_accessible->SetWindow((wxWindow*) this);
2264 }
2265
2266 // Returns the accessible object, creating if necessary.
2267 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2268 {
2269     if (!m_accessible)
2270         m_accessible = CreateAccessible();
2271     return m_accessible;
2272 }
2273
2274 // Override to create a specific accessible object.
2275 wxAccessible* wxWindowBase::CreateAccessible()
2276 {
2277     return new wxWindowAccessible((wxWindow*) this);
2278 }
2279
2280 #endif
2281
2282 // ----------------------------------------------------------------------------
2283 // list classes implementation
2284 // ----------------------------------------------------------------------------
2285
2286 #if wxUSE_STL
2287
2288 #include "wx/listimpl.cpp"
2289 WX_DEFINE_LIST(wxWindowList)
2290
2291 #else
2292
2293 void wxWindowListNode::DeleteData()
2294 {
2295     delete (wxWindow *)GetData();
2296 }
2297
2298 #endif
2299
2300 // ----------------------------------------------------------------------------
2301 // borders
2302 // ----------------------------------------------------------------------------
2303
2304 wxBorder wxWindowBase::GetBorder(long flags) const
2305 {
2306     wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2307     if ( border == wxBORDER_DEFAULT )
2308     {
2309         border = GetDefaultBorder();
2310     }
2311
2312     return border;
2313 }
2314
2315 wxBorder wxWindowBase::GetDefaultBorder() const
2316 {
2317     return wxBORDER_NONE;
2318 }
2319
2320 // ----------------------------------------------------------------------------
2321 // hit testing
2322 // ----------------------------------------------------------------------------
2323
2324 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2325 {
2326     // here we just check if the point is inside the window or not
2327
2328     // check the top and left border first
2329     bool outside = x < 0 || y < 0;
2330     if ( !outside )
2331     {
2332         // check the right and bottom borders too
2333         wxSize size = GetSize();
2334         outside = x >= size.x || y >= size.y;
2335     }
2336
2337     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2338 }
2339
2340 // ----------------------------------------------------------------------------
2341 // mouse capture
2342 // ----------------------------------------------------------------------------
2343
2344 struct WXDLLEXPORT wxWindowNext
2345 {
2346     wxWindow *win;
2347     wxWindowNext *next;
2348 } *wxWindowBase::ms_winCaptureNext = NULL;
2349
2350 void wxWindowBase::CaptureMouse()
2351 {
2352     wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), this);
2353
2354     wxWindow *winOld = GetCapture();
2355     if ( winOld )
2356     {
2357         ((wxWindowBase*) winOld)->DoReleaseMouse();
2358
2359         // save it on stack
2360         wxWindowNext *item = new wxWindowNext;
2361         item->win = winOld;
2362         item->next = ms_winCaptureNext;
2363         ms_winCaptureNext = item;
2364     }
2365     //else: no mouse capture to save
2366
2367     DoCaptureMouse();
2368 }
2369
2370 void wxWindowBase::ReleaseMouse()
2371 {
2372     wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), this);
2373
2374     wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2375
2376     DoReleaseMouse();
2377
2378     if ( ms_winCaptureNext )
2379     {
2380         ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2381
2382         wxWindowNext *item = ms_winCaptureNext;
2383         ms_winCaptureNext = item->next;
2384         delete item;
2385     }
2386     //else: stack is empty, no previous capture
2387
2388     wxLogTrace(_T("mousecapture"),
2389         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2390         GetCapture());
2391 }
2392
2393 #if wxUSE_HOTKEY
2394
2395 bool
2396 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2397                              int WXUNUSED(modifiers),
2398                              int WXUNUSED(keycode))
2399 {
2400     // not implemented
2401     return false;
2402 }
2403
2404 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2405 {
2406     // not implemented
2407     return false;
2408 }
2409
2410 #endif // wxUSE_HOTKEY
2411
2412 void wxWindowBase::SendDestroyEvent()
2413 {
2414     wxWindowDestroyEvent event;
2415     event.SetEventObject(this);
2416     event.SetId(GetId());
2417     GetEventHandler()->ProcessEvent(event);
2418 }
2419
2420 // ----------------------------------------------------------------------------
2421 // event processing
2422 // ----------------------------------------------------------------------------
2423
2424 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2425 {
2426 #if wxUSE_VALIDATORS
2427     // Can only use the validator of the window which
2428     // is receiving the event
2429     if ( event.GetEventObject() == this )
2430     {
2431         wxValidator *validator = GetValidator();
2432         if ( validator && validator->ProcessEvent(event) )
2433         {
2434             return true;
2435         }
2436     }
2437 #endif // wxUSE_VALIDATORS
2438
2439     return false;
2440 }
2441
2442 bool wxWindowBase::TryParent(wxEvent& event)
2443 {
2444     // carry on up the parent-child hierarchy if the propagation count hasn't
2445     // reached zero yet
2446     if ( event.ShouldPropagate() )
2447     {
2448         // honour the requests to stop propagation at this window: this is
2449         // used by the dialogs, for example, to prevent processing the events
2450         // from the dialog controls in the parent frame which rarely, if ever,
2451         // makes sense
2452         if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2453         {
2454             wxWindow *parent = GetParent();
2455             if ( parent && !parent->IsBeingDeleted() )
2456             {
2457                 wxPropagateOnce propagateOnce(event);
2458
2459                 return parent->GetEventHandler()->ProcessEvent(event);
2460             }
2461         }
2462     }
2463
2464     return wxEvtHandler::TryParent(event);
2465 }
2466
2467 // ----------------------------------------------------------------------------
2468 // keyboard navigation
2469 // ----------------------------------------------------------------------------
2470
2471 // Navigates in the specified direction.
2472 bool wxWindowBase::Navigate(int flags)
2473 {
2474     wxNavigationKeyEvent eventNav;
2475     eventNav.SetFlags(flags);
2476     eventNav.SetEventObject(this);
2477     if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2478     {
2479         return true;
2480     }
2481     return false;
2482 }
2483
2484 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2485 {
2486     // check that we're not a top level window
2487     wxCHECK_RET( GetParent(),
2488                     _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2489
2490     // detect the special case when we have nothing to do anyhow and when the
2491     // code below wouldn't work
2492     if ( win == this )
2493         return;
2494
2495     // find the target window in the siblings list
2496     wxWindowList& siblings = GetParent()->GetChildren();
2497     wxWindowList::compatibility_iterator i = siblings.Find(win);
2498     wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2499
2500     // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2501     // can't just move the node around
2502     wxWindow *self = (wxWindow *)this;
2503     siblings.DeleteObject(self);
2504     if ( move == MoveAfter )
2505     {
2506         i = i->GetNext();
2507     }
2508
2509     if ( i )
2510     {
2511         siblings.Insert(i, self);
2512     }
2513     else // MoveAfter and win was the last sibling
2514     {
2515         siblings.Append(self);
2516     }
2517 }
2518
2519 // ----------------------------------------------------------------------------
2520 // focus handling
2521 // ----------------------------------------------------------------------------
2522
2523 /*static*/ wxWindow* wxWindowBase::FindFocus()
2524 {
2525     wxWindowBase *win = DoFindFocus();
2526     return win ? win->GetMainWindowOfCompositeControl() : NULL;
2527 }
2528
2529 // ----------------------------------------------------------------------------
2530 // global functions
2531 // ----------------------------------------------------------------------------
2532
2533 wxWindow* wxGetTopLevelParent(wxWindow *win)
2534 {
2535     while ( win && !win->IsTopLevel() )
2536          win = win->GetParent();
2537
2538     return win;
2539 }
2540
2541 #if wxUSE_ACCESSIBILITY
2542 // ----------------------------------------------------------------------------
2543 // accessible object for windows
2544 // ----------------------------------------------------------------------------
2545
2546 // Can return either a child object, or an integer
2547 // representing the child element, starting from 1.
2548 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2549 {
2550     wxASSERT( GetWindow() != NULL );
2551     if (!GetWindow())
2552         return wxACC_FAIL;
2553
2554     return wxACC_NOT_IMPLEMENTED;
2555 }
2556
2557 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2558 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2559 {
2560     wxASSERT( GetWindow() != NULL );
2561     if (!GetWindow())
2562         return wxACC_FAIL;
2563
2564     wxWindow* win = NULL;
2565     if (elementId == 0)
2566     {
2567         win = GetWindow();
2568     }
2569     else
2570     {
2571         if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2572         {
2573             win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2574         }
2575         else
2576             return wxACC_FAIL;
2577     }
2578     if (win)
2579     {
2580         rect = win->GetRect();
2581         if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2582             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2583         return wxACC_OK;
2584     }
2585
2586     return wxACC_NOT_IMPLEMENTED;
2587 }
2588
2589 // Navigates from fromId to toId/toObject.
2590 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2591                              int* WXUNUSED(toId), wxAccessible** toObject)
2592 {
2593     wxASSERT( GetWindow() != NULL );
2594     if (!GetWindow())
2595         return wxACC_FAIL;
2596
2597     switch (navDir)
2598     {
2599     case wxNAVDIR_FIRSTCHILD:
2600         {
2601             if (GetWindow()->GetChildren().GetCount() == 0)
2602                 return wxACC_FALSE;
2603             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2604             *toObject = childWindow->GetOrCreateAccessible();
2605
2606             return wxACC_OK;
2607         }
2608     case wxNAVDIR_LASTCHILD:
2609         {
2610             if (GetWindow()->GetChildren().GetCount() == 0)
2611                 return wxACC_FALSE;
2612             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2613             *toObject = childWindow->GetOrCreateAccessible();
2614
2615             return wxACC_OK;
2616         }
2617     case wxNAVDIR_RIGHT:
2618     case wxNAVDIR_DOWN:
2619     case wxNAVDIR_NEXT:
2620         {
2621             wxWindowList::compatibility_iterator node =
2622                 wxWindowList::compatibility_iterator();
2623             if (fromId == 0)
2624             {
2625                 // Can't navigate to sibling of this window
2626                 // if we're a top-level window.
2627                 if (!GetWindow()->GetParent())
2628                     return wxACC_NOT_IMPLEMENTED;
2629
2630                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2631             }
2632             else
2633             {
2634                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2635                     node = GetWindow()->GetChildren().Item(fromId-1);
2636             }
2637
2638             if (node && node->GetNext())
2639             {
2640                 wxWindow* nextWindow = node->GetNext()->GetData();
2641                 *toObject = nextWindow->GetOrCreateAccessible();
2642                 return wxACC_OK;
2643             }
2644             else
2645                 return wxACC_FALSE;
2646         }
2647     case wxNAVDIR_LEFT:
2648     case wxNAVDIR_UP:
2649     case wxNAVDIR_PREVIOUS:
2650         {
2651             wxWindowList::compatibility_iterator node =
2652                 wxWindowList::compatibility_iterator();
2653             if (fromId == 0)
2654             {
2655                 // Can't navigate to sibling of this window
2656                 // if we're a top-level window.
2657                 if (!GetWindow()->GetParent())
2658                     return wxACC_NOT_IMPLEMENTED;
2659
2660                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2661             }
2662             else
2663             {
2664                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2665                     node = GetWindow()->GetChildren().Item(fromId-1);
2666             }
2667
2668             if (node && node->GetPrevious())
2669             {
2670                 wxWindow* previousWindow = node->GetPrevious()->GetData();
2671                 *toObject = previousWindow->GetOrCreateAccessible();
2672                 return wxACC_OK;
2673             }
2674             else
2675                 return wxACC_FALSE;
2676         }
2677     }
2678
2679     return wxACC_NOT_IMPLEMENTED;
2680 }
2681
2682 // Gets the name of the specified object.
2683 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2684 {
2685     wxASSERT( GetWindow() != NULL );
2686     if (!GetWindow())
2687         return wxACC_FAIL;
2688
2689     wxString title;
2690
2691     // If a child, leave wxWidgets to call the function on the actual
2692     // child object.
2693     if (childId > 0)
2694         return wxACC_NOT_IMPLEMENTED;
2695
2696     // This will eventually be replaced by specialised
2697     // accessible classes, one for each kind of wxWidgets
2698     // control or window.
2699 #if wxUSE_BUTTON
2700     if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2701         title = ((wxButton*) GetWindow())->GetLabel();
2702     else
2703 #endif
2704         title = GetWindow()->GetName();
2705
2706     if (!title.empty())
2707     {
2708         *name = title;
2709         return wxACC_OK;
2710     }
2711     else
2712         return wxACC_NOT_IMPLEMENTED;
2713 }
2714
2715 // Gets the number of children.
2716 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2717 {
2718     wxASSERT( GetWindow() != NULL );
2719     if (!GetWindow())
2720         return wxACC_FAIL;
2721
2722     *childId = (int) GetWindow()->GetChildren().GetCount();
2723     return wxACC_OK;
2724 }
2725
2726 // Gets the specified child (starting from 1).
2727 // If *child is NULL and return value is wxACC_OK,
2728 // this means that the child is a simple element and
2729 // not an accessible object.
2730 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2731 {
2732     wxASSERT( GetWindow() != NULL );
2733     if (!GetWindow())
2734         return wxACC_FAIL;
2735
2736     if (childId == 0)
2737     {
2738         *child = this;
2739         return wxACC_OK;
2740     }
2741
2742     if (childId > (int) GetWindow()->GetChildren().GetCount())
2743         return wxACC_FAIL;
2744
2745     wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2746     *child = childWindow->GetOrCreateAccessible();
2747     if (*child)
2748         return wxACC_OK;
2749     else
2750         return wxACC_FAIL;
2751 }
2752
2753 // Gets the parent, or NULL.
2754 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2755 {
2756     wxASSERT( GetWindow() != NULL );
2757     if (!GetWindow())
2758         return wxACC_FAIL;
2759
2760     wxWindow* parentWindow = GetWindow()->GetParent();
2761     if (!parentWindow)
2762     {
2763         *parent = NULL;
2764         return wxACC_OK;
2765     }
2766     else
2767     {
2768         *parent = parentWindow->GetOrCreateAccessible();
2769         if (*parent)
2770             return wxACC_OK;
2771         else
2772             return wxACC_FAIL;
2773     }
2774 }
2775
2776 // Performs the default action. childId is 0 (the action for this object)
2777 // or > 0 (the action for a child).
2778 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2779 // window (e.g. an edit control).
2780 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2781 {
2782     wxASSERT( GetWindow() != NULL );
2783     if (!GetWindow())
2784         return wxACC_FAIL;
2785
2786     return wxACC_NOT_IMPLEMENTED;
2787 }
2788
2789 // Gets the default action for this object (0) or > 0 (the action for a child).
2790 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2791 // string if there is no action.
2792 // The retrieved string describes the action that is performed on an object,
2793 // not what the object does as a result. For example, a toolbar button that prints
2794 // a document has a default action of "Press" rather than "Prints the current document."
2795 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2796 {
2797     wxASSERT( GetWindow() != NULL );
2798     if (!GetWindow())
2799         return wxACC_FAIL;
2800
2801     return wxACC_NOT_IMPLEMENTED;
2802 }
2803
2804 // Returns the description for this object or a child.
2805 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2806 {
2807     wxASSERT( GetWindow() != NULL );
2808     if (!GetWindow())
2809         return wxACC_FAIL;
2810
2811     wxString ht(GetWindow()->GetHelpText());
2812     if (!ht.empty())
2813     {
2814         *description = ht;
2815         return wxACC_OK;
2816     }
2817     return wxACC_NOT_IMPLEMENTED;
2818 }
2819
2820 // Returns help text for this object or a child, similar to tooltip text.
2821 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2822 {
2823     wxASSERT( GetWindow() != NULL );
2824     if (!GetWindow())
2825         return wxACC_FAIL;
2826
2827     wxString ht(GetWindow()->GetHelpText());
2828     if (!ht.empty())
2829     {
2830         *helpText = ht;
2831         return wxACC_OK;
2832     }
2833     return wxACC_NOT_IMPLEMENTED;
2834 }
2835
2836 // Returns the keyboard shortcut for this object or child.
2837 // Return e.g. ALT+K
2838 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2839 {
2840     wxASSERT( GetWindow() != NULL );
2841     if (!GetWindow())
2842         return wxACC_FAIL;
2843
2844     return wxACC_NOT_IMPLEMENTED;
2845 }
2846
2847 // Returns a role constant.
2848 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2849 {
2850     wxASSERT( GetWindow() != NULL );
2851     if (!GetWindow())
2852         return wxACC_FAIL;
2853
2854     // If a child, leave wxWidgets to call the function on the actual
2855     // child object.
2856     if (childId > 0)
2857         return wxACC_NOT_IMPLEMENTED;
2858
2859     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2860         return wxACC_NOT_IMPLEMENTED;
2861 #if wxUSE_STATUSBAR
2862     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2863         return wxACC_NOT_IMPLEMENTED;
2864 #endif
2865 #if wxUSE_TOOLBAR
2866     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2867         return wxACC_NOT_IMPLEMENTED;
2868 #endif
2869
2870     //*role = wxROLE_SYSTEM_CLIENT;
2871     *role = wxROLE_SYSTEM_CLIENT;
2872     return wxACC_OK;
2873
2874     #if 0
2875     return wxACC_NOT_IMPLEMENTED;
2876     #endif
2877 }
2878
2879 // Returns a state constant.
2880 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2881 {
2882     wxASSERT( GetWindow() != NULL );
2883     if (!GetWindow())
2884         return wxACC_FAIL;
2885
2886     // If a child, leave wxWidgets to call the function on the actual
2887     // child object.
2888     if (childId > 0)
2889         return wxACC_NOT_IMPLEMENTED;
2890
2891     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2892         return wxACC_NOT_IMPLEMENTED;
2893
2894 #if wxUSE_STATUSBAR
2895     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2896         return wxACC_NOT_IMPLEMENTED;
2897 #endif
2898 #if wxUSE_TOOLBAR
2899     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2900         return wxACC_NOT_IMPLEMENTED;
2901 #endif
2902
2903     *state = 0;
2904     return wxACC_OK;
2905
2906     #if 0
2907     return wxACC_NOT_IMPLEMENTED;
2908     #endif
2909 }
2910
2911 // Returns a localized string representing the value for the object
2912 // or child.
2913 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2914 {
2915     wxASSERT( GetWindow() != NULL );
2916     if (!GetWindow())
2917         return wxACC_FAIL;
2918
2919     return wxACC_NOT_IMPLEMENTED;
2920 }
2921
2922 // Selects the object or child.
2923 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2924 {
2925     wxASSERT( GetWindow() != NULL );
2926     if (!GetWindow())
2927         return wxACC_FAIL;
2928
2929     return wxACC_NOT_IMPLEMENTED;
2930 }
2931
2932 // Gets the window with the keyboard focus.
2933 // If childId is 0 and child is NULL, no object in
2934 // this subhierarchy has the focus.
2935 // If this object has the focus, child should be 'this'.
2936 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2937 {
2938     wxASSERT( GetWindow() != NULL );
2939     if (!GetWindow())
2940         return wxACC_FAIL;
2941
2942     return wxACC_NOT_IMPLEMENTED;
2943 }
2944
2945 // Gets a variant representing the selected children
2946 // of this object.
2947 // Acceptable values:
2948 // - a null variant (IsNull() returns true)
2949 // - a list variant (GetType() == wxT("list")
2950 // - an integer representing the selected child element,
2951 //   or 0 if this object is selected (GetType() == wxT("long")
2952 // - a "void*" pointer to a wxAccessible child object
2953 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
2954 {
2955     wxASSERT( GetWindow() != NULL );
2956     if (!GetWindow())
2957         return wxACC_FAIL;
2958
2959     return wxACC_NOT_IMPLEMENTED;
2960 }
2961
2962 #endif // wxUSE_ACCESSIBILITY