src/common/wincmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        common/window.cpp
   3 // Purpose:     common (to all ports) wxWindow functions
   4 // Author:      Julian Smart, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     13/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "windowbase.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/string.h"
  33     #include "wx/log.h"
  34     #include "wx/intl.h"
  35     #include "wx/frame.h"
  36     #include "wx/defs.h"
  37     #include "wx/window.h"
  38     #include "wx/control.h"
  39     #include "wx/checkbox.h"
  40     #include "wx/radiobut.h"
  41     #include "wx/statbox.h"
  42     #include "wx/textctrl.h"
  43     #include "wx/settings.h"
  44     #include "wx/dialog.h"
  45     #include "wx/msgdlg.h"
  46     #include "wx/statusbr.h"
  47     #include "wx/dcclient.h"
  48 #endif //WX_PRECOMP
  49
  50 #if defined(__WXMAC__) && wxUSE_SCROLLBAR
  51     #include "wx/scrolbar.h"
  52 #endif
  53
  54 #if wxUSE_CONSTRAINTS
  55     #include "wx/layout.h"
  56 #endif // wxUSE_CONSTRAINTS
  57
  58 #include "wx/sizer.h"
  59
  60 #if wxUSE_DRAG_AND_DROP
  61     #include "wx/dnd.h"
  62 #endif // wxUSE_DRAG_AND_DROP
  63
  64 #if wxUSE_ACCESSIBILITY
  65     #include "wx/access.h"
  66 #endif
  67
  68 #if wxUSE_HELP
  69     #include "wx/cshelp.h"
  70 #endif // wxUSE_HELP
  71
  72 #if wxUSE_TOOLTIPS
  73     #include "wx/tooltip.h"
  74 #endif // wxUSE_TOOLTIPS
  75
  76 #if wxUSE_CARET
  77     #include "wx/caret.h"
  78 #endif // wxUSE_CARET
  79
  80 #if wxUSE_DISPLAY
  81     #include "wx/display.h"
  82 #endif
  83
  84 #if wxUSE_SYSTEM_OPTIONS
  85     #include "wx/sysopt.h"
  86 #endif
  87
  88 // ----------------------------------------------------------------------------
  89 // static data
  90 // ----------------------------------------------------------------------------
  91
  92 #if defined(__WXPALMOS__)
  93 int wxWindowBase::ms_lastControlId = 32767;
  94 #elif defined(__WXPM__)
  95 int wxWindowBase::ms_lastControlId = 2000;
  96 #else
  97 int wxWindowBase::ms_lastControlId = -200;
  98 #endif
  99
 100 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
 101
 102 // ----------------------------------------------------------------------------
 103 // event table
 104 // ----------------------------------------------------------------------------
 105
 106 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
 107     EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
 108     EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
 109     EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
 110
 111 #if wxUSE_HELP
 112     EVT_HELP(wxID_ANY, wxWindowBase::OnHelp)
 113 #endif // wxUSE_HELP
 114
 115 END_EVENT_TABLE()
 116
 117 // ============================================================================
 118 // implementation of the common functionality of the wxWindow class
 119 // ============================================================================
 120
 121 // ----------------------------------------------------------------------------
 122 // initialization
 123 // ----------------------------------------------------------------------------
 124
 125 // the default initialization
 126 wxWindowBase::wxWindowBase()
 127 {
 128     // no window yet, no parent nor children
 129     m_parent = (wxWindow *)NULL;
 130     m_windowId = wxID_ANY;
 131
 132     // no constraints on the minimal window size
 133     m_minWidth =
 134     m_maxWidth = wxDefaultCoord;
 135     m_minHeight =
 136     m_maxHeight = wxDefaultCoord;
 137
 138     // invalidiated cache value
 139     m_bestSizeCache = wxDefaultSize;
 140
 141     // window are created enabled and visible by default
 142     m_isShown =
 143     m_isEnabled = true;
 144
 145     // the default event handler is just this window
 146     m_eventHandler = this;
 147
 148 #if wxUSE_VALIDATORS
 149     // no validator
 150     m_windowValidator = (wxValidator *) NULL;
 151 #endif // wxUSE_VALIDATORS
 152
 153     // the colours/fonts are default for now, so leave m_font,
 154     // m_backgroundColour and m_foregroundColour uninitialized and set those
 155     m_hasBgCol =
 156     m_hasFgCol =
 157     m_hasFont = false;
 158     m_inheritBgCol =
 159     m_inheritFgCol =
 160     m_inheritFont = false;
 161
 162     // no style bits
 163     m_exStyle =
 164     m_windowStyle = 0;
 165
 166     m_backgroundStyle = wxBG_STYLE_SYSTEM;
 167
 168 #if wxUSE_CONSTRAINTS
 169     // no constraints whatsoever
 170     m_constraints = (wxLayoutConstraints *) NULL;
 171     m_constraintsInvolvedIn = (wxWindowList *) NULL;
 172 #endif // wxUSE_CONSTRAINTS
 173
 174     m_windowSizer = (wxSizer *) NULL;
 175     m_containingSizer = (wxSizer *) NULL;
 176     m_autoLayout = false;
 177
 178 #if wxUSE_DRAG_AND_DROP
 179     m_dropTarget = (wxDropTarget *)NULL;
 180 #endif // wxUSE_DRAG_AND_DROP
 181
 182 #if wxUSE_TOOLTIPS
 183     m_tooltip = (wxToolTip *)NULL;
 184 #endif // wxUSE_TOOLTIPS
 185
 186 #if wxUSE_CARET
 187     m_caret = (wxCaret *)NULL;
 188 #endif // wxUSE_CARET
 189
 190 #if wxUSE_PALETTE
 191     m_hasCustomPalette = false;
 192 #endif // wxUSE_PALETTE
 193
 194 #if wxUSE_ACCESSIBILITY
 195     m_accessible = NULL;
 196 #endif
 197
 198     m_virtualSize = wxDefaultSize;
 199
 200     m_minVirtualWidth =
 201     m_maxVirtualWidth = wxDefaultCoord;
 202     m_minVirtualHeight =
 203     m_maxVirtualHeight = wxDefaultCoord;
 204
 205     m_windowVariant = wxWINDOW_VARIANT_NORMAL;
 206 #if wxUSE_SYSTEM_OPTIONS
 207     if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) )
 208     {
 209        m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ;
 210     }
 211 #endif
 212
 213     // Whether we're using the current theme for this window (wxGTK only for now)
 214     m_themeEnabled = false;
 215
 216     // VZ: this one shouldn't exist...
 217     m_isBeingDeleted = false;
 218
 219     // Can be used in port specific wxWindow derived classes for holding extra
 220     // data memebers.
 221     m_extraData = NULL;
 222 }
 223
 224 // common part of window creation process
 225 bool wxWindowBase::CreateBase(wxWindowBase *parent,
 226                               wxWindowID id,
 227                               const wxPoint& WXUNUSED(pos),
 228                               const wxSize& WXUNUSED(size),
 229                               long style,
 230                               const wxValidator& wxVALIDATOR_PARAM(validator),
 231                               const wxString& name)
 232 {
 233 #if wxUSE_STATBOX
 234     // wxGTK doesn't allow to create controls with static box as the parent so
 235     // this will result in a crash when the program is ported to wxGTK so warn
 236     // the user about it
 237
 238     // if you get this assert, the correct solution is to create the controls
 239     // as siblings of the static box
 240     wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
 241                   _T("wxStaticBox can't be used as a window parent!") );
 242 #endif // wxUSE_STATBOX
 243
 244     // ids are limited to 16 bits under MSW so if you care about portability,
 245     // it's not a good idea to use ids out of this range (and negative ids are
 246     // reserved for wxWidgets own usage)
 247     wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
 248                   _T("invalid id value") );
 249
 250     // generate a new id if the user doesn't care about it
 251     m_windowId = id == wxID_ANY ? NewControlId() : id;
 252
 253     SetName(name);
 254     SetWindowStyleFlag(style);
 255     SetParent(parent);
 256
 257 #if wxUSE_VALIDATORS
 258     SetValidator(validator);
 259 #endif // wxUSE_VALIDATORS
 260
 261     // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
 262     // have it too - like this it's possible to set it only in the top level
 263     // dialog/frame and all children will inherit it by defult
 264     if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
 265     {
 266         SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
 267     }
 268
 269     return true;
 270 }
 271
 272 // ----------------------------------------------------------------------------
 273 // destruction
 274 // ----------------------------------------------------------------------------
 275
 276 // common clean up
 277 wxWindowBase::~wxWindowBase()
 278 {
 279     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 280
 281     // FIXME if these 2 cases result from programming errors in the user code
 282     //       we should probably assert here instead of silently fixing them
 283
 284     // Just in case the window has been Closed, but we're then deleting
 285     // immediately: don't leave dangling pointers.
 286     wxPendingDelete.DeleteObject(this);
 287
 288     // Just in case we've loaded a top-level window via LoadNativeDialog but
 289     // we weren't a dialog class
 290     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 291
 292     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 293
 294     // reset the dangling pointer our parent window may keep to us
 295     if ( m_parent )
 296     {
 297         if ( m_parent->GetDefaultItem() == this )
 298         {
 299             m_parent->SetDefaultItem(NULL);
 300         }
 301
 302         m_parent->RemoveChild(this);
 303     }
 304
 305 #if wxUSE_CARET
 306     delete m_caret;
 307 #endif // wxUSE_CARET
 308
 309 #if wxUSE_VALIDATORS
 310     delete m_windowValidator;
 311 #endif // wxUSE_VALIDATORS
 312
 313 #if wxUSE_CONSTRAINTS
 314     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
 315     // at deleted windows as they delete themselves.
 316     DeleteRelatedConstraints();
 317
 318     if ( m_constraints )
 319     {
 320         // This removes any dangling pointers to this window in other windows'
 321         // constraintsInvolvedIn lists.
 322         UnsetConstraints(m_constraints);
 323         delete m_constraints;
 324         m_constraints = NULL;
 325     }
 326 #endif // wxUSE_CONSTRAINTS
 327
 328     if ( m_containingSizer )
 329         m_containingSizer->Detach( (wxWindow*)this );
 330
 331     delete m_windowSizer;
 332
 333 #if wxUSE_DRAG_AND_DROP
 334     delete m_dropTarget;
 335 #endif // wxUSE_DRAG_AND_DROP
 336
 337 #if wxUSE_TOOLTIPS
 338     delete m_tooltip;
 339 #endif // wxUSE_TOOLTIPS
 340
 341 #if wxUSE_ACCESSIBILITY
 342     delete m_accessible;
 343 #endif
 344 }
 345
 346 bool wxWindowBase::Destroy()
 347 {
 348     delete this;
 349
 350     return true;
 351 }
 352
 353 bool wxWindowBase::Close(bool force)
 354 {
 355     wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
 356     event.SetEventObject(this);
 357     event.SetCanVeto(!force);
 358
 359     // return false if window wasn't closed because the application vetoed the
 360     // close event
 361     return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
 362 }
 363
 364 bool wxWindowBase::DestroyChildren()
 365 {
 366     wxWindowList::compatibility_iterator node;
 367     for ( ;; )
 368     {
 369         // we iterate until the list becomes empty
 370         node = GetChildren().GetFirst();
 371         if ( !node )
 372             break;
 373
 374         wxWindow *child = node->GetData();
 375
 376         // note that we really want to call delete and not ->Destroy() here
 377         // because we want to delete the child immediately, before we are
 378         // deleted, and delayed deletion would result in problems as our (top
 379         // level) child could outlive its parent
 380         delete child;
 381
 382         wxASSERT_MSG( !GetChildren().Find(child),
 383                       wxT("child didn't remove itself using RemoveChild()") );
 384     }
 385
 386     return true;
 387 }
 388
 389 // ----------------------------------------------------------------------------
 390 // size/position related methods
 391 // ----------------------------------------------------------------------------
 392
 393 // centre the window with respect to its parent in either (or both) directions
 394 void wxWindowBase::Centre(int direction)
 395 {
 396     // the position/size of the parent window or of the entire screen
 397     wxPoint posParent;
 398     int widthParent, heightParent;
 399
 400     wxWindow *parent = NULL;
 401     wxTopLevelWindow *winTop = NULL;
 402
 403     if ( !(direction & wxCENTRE_ON_SCREEN) )
 404     {
 405         // find the parent to centre this window on: it should be the
 406         // immediate parent for the controls but the top level parent for the
 407         // top level windows (like dialogs)
 408         parent = GetParent();
 409         if ( IsTopLevel() )
 410         {
 411             while ( parent && !parent->IsTopLevel() )
 412             {
 413                 parent = parent->GetParent();
 414             }
 415         }
 416
 417         // there is no wxTopLevelWindow under wxMotif yet
 418 #ifndef __WXMOTIF__
 419         // we shouldn't center the dialog on the iconized window: under
 420         // Windows, for example, this places it completely off the screen
 421         if ( parent )
 422         {
 423             winTop = wxDynamicCast(parent, wxTopLevelWindow);
 424             if ( winTop && winTop->IsIconized() )
 425             {
 426                 winTop = NULL;
 427                 parent = NULL;
 428             }
 429         }
 430 #endif // __WXMOTIF__
 431
 432         // did we find the parent?
 433         if ( !parent )
 434         {
 435             // no other choice
 436             direction |= wxCENTRE_ON_SCREEN;
 437         }
 438     }
 439
 440     if ( direction & wxCENTRE_ON_SCREEN )
 441     {
 442         //RN:  If we are using wxDisplay we get
 443         //the dimensions of the monitor the window is on,
 444         //otherwise we get the dimensions of the primary monitor
 445         //FIXME:  wxDisplay::GetFromWindow only implemented on MSW
 446 #if wxUSE_DISPLAY && defined(__WXMSW__)
 447         int nDisplay = wxDisplay::GetFromWindow((wxWindow*)this);
 448         if(nDisplay != wxNOT_FOUND)
 449         {
 450             wxDisplay windowDisplay(nDisplay);
 451             wxRect displayRect = windowDisplay.GetGeometry();
 452             widthParent = displayRect.width;
 453             heightParent = displayRect.height;
 454         }
 455         else
 456 #endif
 457         // centre with respect to the whole screen
 458         wxDisplaySize(&widthParent, &heightParent);
 459     }
 460     else
 461     {
 462         if ( IsTopLevel() )
 463         {
 464             if(winTop)
 465                 winTop->GetRectForTopLevelChildren(&posParent.x, &posParent.y, &widthParent, &heightParent);
 466             else
 467             {
 468                 // centre on the parent
 469                 parent->GetSize(&widthParent, &heightParent);
 470
 471                 // adjust to the parents position
 472                 posParent = parent->GetPosition();
 473             }
 474         }
 475         else
 476         {
 477             // centre inside the parents client rectangle
 478             parent->GetClientSize(&widthParent, &heightParent);
 479         }
 480     }
 481
 482     int width, height;
 483     GetSize(&width, &height);
 484
 485     int xNew = wxDefaultCoord,
 486         yNew = wxDefaultCoord;
 487
 488     if ( direction & wxHORIZONTAL )
 489         xNew = (widthParent - width)/2;
 490
 491     if ( direction & wxVERTICAL )
 492         yNew = (heightParent - height)/2;
 493
 494     xNew += posParent.x;
 495     yNew += posParent.y;
 496
 497     // FIXME:  This needs to get the client display rect of the display
 498     // the window is (via wxDisplay::GetFromWindow).
 499
 500     // Base size of the visible dimensions of the display
 501     // to take into account the taskbar. And the Mac menu bar at top.
 502     wxRect clientrect = wxGetClientDisplayRect();
 503
 504     // NB: in wxMSW, negative position may not neccessary mean "out of screen",
 505     //     but it may mean that the window is placed on other than the main
 506     //     display. Therefore we only make sure centered window is on the main display
 507     //     if the parent is at least partially present here.
 508     if (posParent.x + widthParent >= 0)  // if parent is (partially) on the main display
 509     {
 510         if (xNew < clientrect.GetLeft())
 511             xNew = clientrect.GetLeft();
 512         else if (xNew + width > clientrect.GetRight())
 513             xNew = clientrect.GetRight() - width;
 514     }
 515     if (posParent.y + heightParent >= 0)  // if parent is (partially) on the main display
 516     {
 517         if (yNew + height > clientrect.GetBottom())
 518             yNew = clientrect.GetBottom() - height;
 519
 520         // Make certain that the title bar is initially visible
 521         // always, even if this would push the bottom of the
 522         // dialog off the visible area of the display
 523         if (yNew < clientrect.GetTop())
 524             yNew = clientrect.GetTop();
 525     }
 526
 527     // move the window to this position (keeping the old size but using
 528     // SetSize() and not Move() to allow xNew and/or yNew to be wxDefaultCoord)
 529     SetSize(xNew, yNew, width, height, wxSIZE_ALLOW_MINUS_ONE);
 530 }
 531
 532 // fits the window around the children
 533 void wxWindowBase::Fit()
 534 {
 535     if ( GetChildren().GetCount() > 0 )
 536     {
 537         SetSize(GetBestSize());
 538     }
 539     //else: do nothing if we have no children
 540 }
 541
 542 // fits virtual size (ie. scrolled area etc.) around children
 543 void wxWindowBase::FitInside()
 544 {
 545     if ( GetChildren().GetCount() > 0 )
 546     {
 547         SetVirtualSize( GetBestVirtualSize() );
 548     }
 549 }
 550
 551 // On Mac, scrollbars are explicitly children.
 552 #ifdef __WXMAC__
 553 static bool wxHasRealChildren(const wxWindowBase* win)
 554 {
 555     int realChildCount = 0;
 556
 557     for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
 558           node;
 559           node = node->GetNext() )
 560     {
 561         wxWindow *win = node->GetData();
 562         if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
 563             realChildCount ++;
 564     }
 565     return (realChildCount > 0);
 566 }
 567 #endif
 568
 569 void wxWindowBase::InvalidateBestSize()
 570 {
 571     m_bestSizeCache = wxDefaultSize;
 572
 573     // parent's best size calculation may depend on its children's
 574     // best sizes, so let's invalidate it as well to be safe:
 575     if (m_parent)
 576         m_parent->InvalidateBestSize();
 577 }
 578
 579 // return the size best suited for the current window
 580 wxSize wxWindowBase::DoGetBestSize() const
 581 {
 582     wxSize best;
 583
 584     if ( m_windowSizer )
 585     {
 586         best = m_windowSizer->GetMinSize();
 587     }
 588 #if wxUSE_CONSTRAINTS
 589     else if ( m_constraints )
 590     {
 591         wxConstCast(this, wxWindowBase)->SatisfyConstraints();
 592
 593         // our minimal acceptable size is such that all our windows fit inside
 594         int maxX = 0,
 595             maxY = 0;
 596
 597         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 598               node;
 599               node = node->GetNext() )
 600         {
 601             wxLayoutConstraints *c = node->GetData()->GetConstraints();
 602             if ( !c )
 603             {
 604                 // it's not normal that we have an unconstrained child, but
 605                 // what can we do about it?
 606                 continue;
 607             }
 608
 609             int x = c->right.GetValue(),
 610                 y = c->bottom.GetValue();
 611
 612             if ( x > maxX )
 613                 maxX = x;
 614
 615             if ( y > maxY )
 616                 maxY = y;
 617
 618             // TODO: we must calculate the overlaps somehow, otherwise we
 619             //       will never return a size bigger than the current one :-(
 620         }
 621
 622         best = wxSize(maxX, maxY);
 623     }
 624 #endif // wxUSE_CONSTRAINTS
 625     else if ( !GetChildren().empty()
 626 #ifdef __WXMAC__
 627               && wxHasRealChildren(this)
 628 #endif
 629               )
 630     {
 631         // our minimal acceptable size is such that all our visible child windows fit inside
 632         int maxX = 0,
 633             maxY = 0;
 634
 635         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 636               node;
 637               node = node->GetNext() )
 638         {
 639             wxWindow *win = node->GetData();
 640             if ( win->IsTopLevel()  || ( ! win->IsShown() )
 641 #if wxUSE_STATUSBAR
 642                     || wxDynamicCast(win, wxStatusBar)
 643 #endif // wxUSE_STATUSBAR
 644                )
 645             {
 646                 // dialogs and frames lie in different top level windows -
 647                 // don't deal with them here; as for the status bars, they
 648                 // don't lie in the client area at all
 649                 continue;
 650             }
 651
 652             int wx, wy, ww, wh;
 653             win->GetPosition(&wx, &wy);
 654
 655             // if the window hadn't been positioned yet, assume that it is in
 656             // the origin
 657             if ( wx == wxDefaultCoord )
 658                 wx = 0;
 659             if ( wy == wxDefaultCoord )
 660                 wy = 0;
 661
 662             win->GetSize(&ww, &wh);
 663             if ( wx + ww > maxX )
 664                 maxX = wx + ww;
 665             if ( wy + wh > maxY )
 666                 maxY = wy + wh;
 667         }
 668
 669         // for compatibility with the old versions and because it really looks
 670         // slightly more pretty like this, add a pad
 671         maxX += 7;
 672         maxY += 14;
 673
 674         best = wxSize(maxX, maxY);
 675     }
 676     else // ! has children
 677     {
 678         // For a generic window there is no natural best size - just use
 679         // either the minimum size if there is one, or the current size.
 680         // These are returned as-is, unadjusted by the client size difference.
 681         if ( GetMinSize().IsFullySpecified() )
 682             return GetMinSize();
 683         else
 684             return GetSize();
 685     }
 686
 687     // Add any difference between size and client size
 688     wxSize diff = GetSize() - GetClientSize();
 689     best.x += wxMax(0, diff.x);
 690     best.y += wxMax(0, diff.y);
 691
 692     return best;
 693 }
 694
 695
 696 wxSize wxWindowBase::GetBestFittingSize() const
 697 {
 698     // merge the best size with the min size, giving priority to the min size
 699     wxSize min = GetMinSize();
 700     if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
 701     {
 702         wxSize best = GetBestSize();
 703         if (min.x == wxDefaultCoord) min.x =  best.x;
 704         if (min.y == wxDefaultCoord) min.y =  best.y;
 705     }
 706     return min;
 707 }
 708
 709
 710 void wxWindowBase::SetBestFittingSize(const wxSize& size)
 711 {
 712     // Set the min size to the size passed in.  This will usually either be
 713     // wxDefaultSize or the size passed to this window's ctor/Create function.
 714     SetMinSize(size);
 715
 716     // Merge the size with the best size if needed
 717     wxSize best = GetBestFittingSize();
 718
 719     // If the current size doesn't match then change it
 720     if (GetSize() != best)
 721         SetSize(best);
 722 }
 723
 724
 725 // by default the origin is not shifted
 726 wxPoint wxWindowBase::GetClientAreaOrigin() const
 727 {
 728     return wxPoint(0,0);
 729 }
 730
 731 // set the min/max size of the window
 732 void wxWindowBase::DoSetSizeHints(int minW, int minH,
 733                                   int maxW, int maxH,
 734                                   int WXUNUSED(incW), int WXUNUSED(incH))
 735 {
 736     // setting min width greater than max width leads to infinite loops under
 737     // X11 and generally doesn't make any sense, so don't allow it
 738     wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
 739                     (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
 740                  _T("min width/height must be less than max width/height!") );
 741
 742     m_minWidth = minW;
 743     m_maxWidth = maxW;
 744     m_minHeight = minH;
 745     m_maxHeight = maxH;
 746 }
 747
 748 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 749 {
 750     if ( m_windowVariant != variant )
 751     {
 752         m_windowVariant = variant;
 753
 754         DoSetWindowVariant(variant);
 755     }
 756 }
 757
 758 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
 759 {
 760     // adjust the font height to correspond to our new variant (notice that
 761     // we're only called if something really changed)
 762     wxFont font = GetFont();
 763     int size = font.GetPointSize();
 764     switch ( variant )
 765     {
 766         case wxWINDOW_VARIANT_NORMAL:
 767             break;
 768
 769         case wxWINDOW_VARIANT_SMALL:
 770             size *= 3;
 771             size /= 4;
 772             break;
 773
 774         case wxWINDOW_VARIANT_MINI:
 775             size *= 2;
 776             size /= 3;
 777             break;
 778
 779         case wxWINDOW_VARIANT_LARGE:
 780             size *= 5;
 781             size /= 4;
 782             break;
 783
 784         default:
 785             wxFAIL_MSG(_T("unexpected window variant"));
 786             break;
 787     }
 788
 789     font.SetPointSize(size);
 790     SetFont(font);
 791 }
 792
 793 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
 794                                         int maxW, int maxH )
 795 {
 796     m_minVirtualWidth = minW;
 797     m_maxVirtualWidth = maxW;
 798     m_minVirtualHeight = minH;
 799     m_maxVirtualHeight = maxH;
 800 }
 801
 802 void wxWindowBase::DoSetVirtualSize( int x, int y )
 803 {
 804     if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
 805         x = m_minVirtualWidth;
 806     if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
 807         x = m_maxVirtualWidth;
 808     if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
 809         y = m_minVirtualHeight;
 810     if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
 811         y = m_maxVirtualHeight;
 812
 813     m_virtualSize = wxSize(x, y);
 814 }
 815
 816 wxSize wxWindowBase::DoGetVirtualSize() const
 817 {
 818     if ( m_virtualSize.IsFullySpecified() )
 819         return m_virtualSize;
 820
 821     wxSize size = GetClientSize();
 822     if ( m_virtualSize.x != wxDefaultCoord )
 823         size.x = m_virtualSize.x;
 824
 825     if ( m_virtualSize.y != wxDefaultCoord )
 826         size.y = m_virtualSize.y;
 827
 828     return size;
 829 }
 830
 831 // ----------------------------------------------------------------------------
 832 // show/hide/enable/disable the window
 833 // ----------------------------------------------------------------------------
 834
 835 bool wxWindowBase::Show(bool show)
 836 {
 837     if ( show != m_isShown )
 838     {
 839         m_isShown = show;
 840
 841         return true;
 842     }
 843     else
 844     {
 845         return false;
 846     }
 847 }
 848
 849 bool wxWindowBase::Enable(bool enable)
 850 {
 851     if ( enable != m_isEnabled )
 852     {
 853         m_isEnabled = enable;
 854
 855         return true;
 856     }
 857     else
 858     {
 859         return false;
 860     }
 861 }
 862 // ----------------------------------------------------------------------------
 863 // RTTI
 864 // ----------------------------------------------------------------------------
 865
 866 bool wxWindowBase::IsTopLevel() const
 867 {
 868     return false;
 869 }
 870
 871 // ----------------------------------------------------------------------------
 872 // reparenting the window
 873 // ----------------------------------------------------------------------------
 874
 875 void wxWindowBase::AddChild(wxWindowBase *child)
 876 {
 877     wxCHECK_RET( child, wxT("can't add a NULL child") );
 878
 879     // this should never happen and it will lead to a crash later if it does
 880     // because RemoveChild() will remove only one node from the children list
 881     // and the other(s) one(s) will be left with dangling pointers in them
 882     wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
 883
 884     GetChildren().Append((wxWindow*)child);
 885     child->SetParent(this);
 886 }
 887
 888 void wxWindowBase::RemoveChild(wxWindowBase *child)
 889 {
 890     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 891
 892     GetChildren().DeleteObject((wxWindow *)child);
 893     child->SetParent(NULL);
 894 }
 895
 896 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 897 {
 898     wxWindow *oldParent = GetParent();
 899     if ( newParent == oldParent )
 900     {
 901         // nothing done
 902         return false;
 903     }
 904
 905     // unlink this window from the existing parent.
 906     if ( oldParent )
 907     {
 908         oldParent->RemoveChild(this);
 909     }
 910     else
 911     {
 912         wxTopLevelWindows.DeleteObject((wxWindow *)this);
 913     }
 914
 915     // add it to the new one
 916     if ( newParent )
 917     {
 918         newParent->AddChild(this);
 919     }
 920     else
 921     {
 922         wxTopLevelWindows.Append((wxWindow *)this);
 923     }
 924
 925     return true;
 926 }
 927
 928 // ----------------------------------------------------------------------------
 929 // event handler stuff
 930 // ----------------------------------------------------------------------------
 931
 932 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
 933 {
 934     wxEvtHandler *handlerOld = GetEventHandler();
 935
 936     handler->SetNextHandler(handlerOld);
 937
 938     if ( handlerOld )
 939         GetEventHandler()->SetPreviousHandler(handler);
 940
 941     SetEventHandler(handler);
 942 }
 943
 944 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 945 {
 946     wxEvtHandler *handlerA = GetEventHandler();
 947     if ( handlerA )
 948     {
 949         wxEvtHandler *handlerB = handlerA->GetNextHandler();
 950         handlerA->SetNextHandler((wxEvtHandler *)NULL);
 951
 952         if ( handlerB )
 953             handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
 954         SetEventHandler(handlerB);
 955
 956         if ( deleteHandler )
 957         {
 958             delete handlerA;
 959             handlerA = (wxEvtHandler *)NULL;
 960         }
 961     }
 962
 963     return handlerA;
 964 }
 965
 966 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
 967 {
 968     wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
 969
 970     wxEvtHandler *handlerPrev = NULL,
 971                  *handlerCur = GetEventHandler();
 972     while ( handlerCur )
 973     {
 974         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 975
 976         if ( handlerCur == handler )
 977         {
 978             if ( handlerPrev )
 979             {
 980                 handlerPrev->SetNextHandler(handlerNext);
 981             }
 982             else
 983             {
 984                 SetEventHandler(handlerNext);
 985             }
 986
 987             if ( handlerNext )
 988             {
 989                 handlerNext->SetPreviousHandler ( handlerPrev );
 990             }
 991
 992             handler->SetNextHandler(NULL);
 993             handler->SetPreviousHandler(NULL);
 994
 995             return true;
 996         }
 997
 998         handlerPrev = handlerCur;
 999         handlerCur = handlerNext;
1000     }
1001
1002     wxFAIL_MSG( _T("where has the event handler gone?") );
1003
1004     return false;
1005 }
1006
1007 // ----------------------------------------------------------------------------
1008 // colours, fonts &c
1009 // ----------------------------------------------------------------------------
1010
1011 void wxWindowBase::InheritAttributes()
1012 {
1013     const wxWindowBase * const parent = GetParent();
1014     if ( !parent )
1015         return;
1016
1017     // we only inherit attributes which had been explicitly set for the parent
1018     // which ensures that this only happens if the user really wants it and
1019     // not by default which wouldn't make any sense in modern GUIs where the
1020     // controls don't all use the same fonts (nor colours)
1021     if ( parent->m_inheritFont && !m_hasFont )
1022         SetFont(parent->GetFont());
1023
1024     // in addition, there is a possibility to explicitly forbid inheriting
1025     // colours at each class level by overriding ShouldInheritColours()
1026     if ( ShouldInheritColours() )
1027     {
1028         if ( parent->m_inheritFgCol && !m_hasFgCol )
1029             SetForegroundColour(parent->GetForegroundColour());
1030
1031         // inheriting (solid) background colour is wrong as it totally breaks
1032         // any kind of themed backgrounds
1033         //
1034         // instead, the controls should use the same background as their parent
1035         // (ideally by not drawing it at all)
1036 #if 0
1037         if ( parent->m_inheritBgCol && !m_hasBgCol )
1038             SetBackgroundColour(parent->GetBackgroundColour());
1039 #endif // 0
1040     }
1041 }
1042
1043 /* static */ wxVisualAttributes
1044 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1045 {
1046     // it is important to return valid values for all attributes from here,
1047     // GetXXX() below rely on this
1048     wxVisualAttributes attrs;
1049     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
1050     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
1051
1052     // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
1053     // the usual background colour than wxSYS_COLOUR_BTNFACE.
1054     // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
1055     // colour on other platforms.
1056
1057 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
1058     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1059 #else
1060     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
1061 #endif
1062     return attrs;
1063 }
1064
1065 wxColour wxWindowBase::GetBackgroundColour() const
1066 {
1067     if ( !m_backgroundColour.Ok() )
1068     {
1069         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
1070
1071         // get our default background colour
1072         wxColour colBg = GetDefaultAttributes().colBg;
1073
1074         // we must return some valid colour to avoid redoing this every time
1075         // and also to avoid surprizing the applications written for older
1076         // wxWidgets versions where GetBackgroundColour() always returned
1077         // something -- so give them something even if it doesn't make sense
1078         // for this window (e.g. it has a themed background)
1079         if ( !colBg.Ok() )
1080             colBg = GetClassDefaultAttributes().colBg;
1081
1082         return colBg;
1083     }
1084     else
1085         return m_backgroundColour;
1086 }
1087
1088 wxColour wxWindowBase::GetForegroundColour() const
1089 {
1090     // logic is the same as above
1091     if ( !m_hasFgCol && !m_foregroundColour.Ok() )
1092     {
1093         wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
1094
1095         wxColour colFg = GetDefaultAttributes().colFg;
1096
1097         if ( !colFg.Ok() )
1098             colFg = GetClassDefaultAttributes().colFg;
1099
1100         return colFg;
1101     }
1102     else
1103         return m_foregroundColour;
1104 }
1105
1106 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
1107 {
1108     if ( colour == m_backgroundColour )
1109         return false;
1110
1111     m_hasBgCol = colour.Ok();
1112     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
1113         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
1114
1115     m_inheritBgCol = m_hasBgCol;
1116     m_backgroundColour = colour;
1117     SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1118     return true;
1119 }
1120
1121 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1122 {
1123     if (colour == m_foregroundColour )
1124         return false;
1125
1126     m_hasFgCol = colour.Ok();
1127     m_inheritFgCol = m_hasFgCol;
1128     m_foregroundColour = colour;
1129     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1130     return true;
1131 }
1132
1133 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1134 {
1135     // setting an invalid cursor is ok, it means that we don't have any special
1136     // cursor
1137     if ( m_cursor == cursor )
1138     {
1139         // no change
1140         return false;
1141     }
1142
1143     m_cursor = cursor;
1144
1145     return true;
1146 }
1147
1148 wxFont wxWindowBase::GetFont() const
1149 {
1150     // logic is the same as in GetBackgroundColour()
1151     if ( !m_font.Ok() )
1152     {
1153         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1154
1155         wxFont font = GetDefaultAttributes().font;
1156         if ( !font.Ok() )
1157             font = GetClassDefaultAttributes().font;
1158
1159         return font;
1160     }
1161     else
1162         return m_font;
1163 }
1164
1165 bool wxWindowBase::SetFont(const wxFont& font)
1166 {
1167     if ( font == m_font )
1168     {
1169         // no change
1170         return false;
1171     }
1172
1173     m_font = font;
1174     m_hasFont = font.Ok();
1175     m_inheritFont = m_hasFont;
1176
1177     InvalidateBestSize();
1178
1179     return true;
1180 }
1181
1182 #if wxUSE_PALETTE
1183
1184 void wxWindowBase::SetPalette(const wxPalette& pal)
1185 {
1186     m_hasCustomPalette = true;
1187     m_palette = pal;
1188
1189     // VZ: can anyone explain me what do we do here?
1190     wxWindowDC d((wxWindow *) this);
1191     d.SetPalette(pal);
1192 }
1193
1194 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1195 {
1196     wxWindow *win = (wxWindow *)this;
1197     while ( win && !win->HasCustomPalette() )
1198     {
1199         win = win->GetParent();
1200     }
1201
1202     return win;
1203 }
1204
1205 #endif // wxUSE_PALETTE
1206
1207 #if wxUSE_CARET
1208 void wxWindowBase::SetCaret(wxCaret *caret)
1209 {
1210     if ( m_caret )
1211     {
1212         delete m_caret;
1213     }
1214
1215     m_caret = caret;
1216
1217     if ( m_caret )
1218     {
1219         wxASSERT_MSG( m_caret->GetWindow() == this,
1220                       wxT("caret should be created associated to this window") );
1221     }
1222 }
1223 #endif // wxUSE_CARET
1224
1225 #if wxUSE_VALIDATORS
1226 // ----------------------------------------------------------------------------
1227 // validators
1228 // ----------------------------------------------------------------------------
1229
1230 void wxWindowBase::SetValidator(const wxValidator& validator)
1231 {
1232     if ( m_windowValidator )
1233         delete m_windowValidator;
1234
1235     m_windowValidator = (wxValidator *)validator.Clone();
1236
1237     if ( m_windowValidator )
1238         m_windowValidator->SetWindow(this);
1239 }
1240 #endif // wxUSE_VALIDATORS
1241
1242 // ----------------------------------------------------------------------------
1243 // update region stuff
1244 // ----------------------------------------------------------------------------
1245
1246 wxRect wxWindowBase::GetUpdateClientRect() const
1247 {
1248     wxRegion rgnUpdate = GetUpdateRegion();
1249     rgnUpdate.Intersect(GetClientRect());
1250     wxRect rectUpdate = rgnUpdate.GetBox();
1251     wxPoint ptOrigin = GetClientAreaOrigin();
1252     rectUpdate.x -= ptOrigin.x;
1253     rectUpdate.y -= ptOrigin.y;
1254
1255     return rectUpdate;
1256 }
1257
1258 bool wxWindowBase::IsExposed(int x, int y) const
1259 {
1260     return m_updateRegion.Contains(x, y) != wxOutRegion;
1261 }
1262
1263 bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
1264 {
1265     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1266 }
1267
1268 void wxWindowBase::ClearBackground()
1269 {
1270     // wxGTK uses its own version, no need to add never used code
1271 #ifndef __WXGTK__
1272     wxClientDC dc((wxWindow *)this);
1273     wxBrush brush(GetBackgroundColour(), wxSOLID);
1274     dc.SetBackground(brush);
1275     dc.Clear();
1276 #endif // __WXGTK__
1277 }
1278
1279 // ----------------------------------------------------------------------------
1280 // find child window by id or name
1281 // ----------------------------------------------------------------------------
1282
1283 wxWindow *wxWindowBase::FindWindow(long id) const
1284 {
1285     if ( id == m_windowId )
1286         return (wxWindow *)this;
1287
1288     wxWindowBase *res = (wxWindow *)NULL;
1289     wxWindowList::compatibility_iterator node;
1290     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1291     {
1292         wxWindowBase *child = node->GetData();
1293         res = child->FindWindow( id );
1294     }
1295
1296     return (wxWindow *)res;
1297 }
1298
1299 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1300 {
1301     if ( name == m_windowName )
1302         return (wxWindow *)this;
1303
1304     wxWindowBase *res = (wxWindow *)NULL;
1305     wxWindowList::compatibility_iterator node;
1306     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1307     {
1308         wxWindow *child = node->GetData();
1309         res = child->FindWindow(name);
1310     }
1311
1312     return (wxWindow *)res;
1313 }
1314
1315
1316 // find any window by id or name or label: If parent is non-NULL, look through
1317 // children for a label or title matching the specified string. If NULL, look
1318 // through all top-level windows.
1319 //
1320 // to avoid duplicating code we reuse the same helper function but with
1321 // different comparators
1322
1323 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1324                                 const wxString& label, long id);
1325
1326 static
1327 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1328                            long WXUNUSED(id))
1329 {
1330     return win->GetLabel() == label;
1331 }
1332
1333 static
1334 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1335                           long WXUNUSED(id))
1336 {
1337     return win->GetName() == label;
1338 }
1339
1340 static
1341 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1342                         long id)
1343 {
1344     return win->GetId() == id;
1345 }
1346
1347 // recursive helper for the FindWindowByXXX() functions
1348 static
1349 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1350                                   const wxString& label,
1351                                   long id,
1352                                   wxFindWindowCmp cmp)
1353 {
1354     if ( parent )
1355     {
1356         // see if this is the one we're looking for
1357         if ( (*cmp)(parent, label, id) )
1358             return (wxWindow *)parent;
1359
1360         // It wasn't, so check all its children
1361         for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1362               node;
1363               node = node->GetNext() )
1364         {
1365             // recursively check each child
1366             wxWindow *win = (wxWindow *)node->GetData();
1367             wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1368             if (retwin)
1369                 return retwin;
1370         }
1371     }
1372
1373     // Not found
1374     return NULL;
1375 }
1376
1377 // helper for FindWindowByXXX()
1378 static
1379 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1380                              const wxString& label,
1381                              long id,
1382                              wxFindWindowCmp cmp)
1383 {
1384     if ( parent )
1385     {
1386         // just check parent and all its children
1387         return wxFindWindowRecursively(parent, label, id, cmp);
1388     }
1389
1390     // start at very top of wx's windows
1391     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1392           node;
1393           node = node->GetNext() )
1394     {
1395         // recursively check each window & its children
1396         wxWindow *win = node->GetData();
1397         wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1398         if (retwin)
1399             return retwin;
1400     }
1401
1402     return NULL;
1403 }
1404
1405 /* static */
1406 wxWindow *
1407 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1408 {
1409     return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1410 }
1411
1412 /* static */
1413 wxWindow *
1414 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1415 {
1416     wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1417
1418     if ( !win )
1419     {
1420         // fall back to the label
1421         win = FindWindowByLabel(title, parent);
1422     }
1423
1424     return win;
1425 }
1426
1427 /* static */
1428 wxWindow *
1429 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1430 {
1431     return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1432 }
1433
1434 // ----------------------------------------------------------------------------
1435 // dialog oriented functions
1436 // ----------------------------------------------------------------------------
1437
1438 void wxWindowBase::MakeModal(bool modal)
1439 {
1440     // Disable all other windows
1441     if ( IsTopLevel() )
1442     {
1443         wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1444         while (node)
1445         {
1446             wxWindow *win = node->GetData();
1447             if (win != this)
1448                 win->Enable(!modal);
1449
1450             node = node->GetNext();
1451         }
1452     }
1453 }
1454
1455 bool wxWindowBase::Validate()
1456 {
1457 #if wxUSE_VALIDATORS
1458     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1459
1460     wxWindowList::compatibility_iterator node;
1461     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1462     {
1463         wxWindowBase *child = node->GetData();
1464         wxValidator *validator = child->GetValidator();
1465         if ( validator && !validator->Validate((wxWindow *)this) )
1466         {
1467             return false;
1468         }
1469
1470         if ( recurse && !child->Validate() )
1471         {
1472             return false;
1473         }
1474     }
1475 #endif // wxUSE_VALIDATORS
1476
1477     return true;
1478 }
1479
1480 bool wxWindowBase::TransferDataToWindow()
1481 {
1482 #if wxUSE_VALIDATORS
1483     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1484
1485     wxWindowList::compatibility_iterator node;
1486     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1487     {
1488         wxWindowBase *child = node->GetData();
1489         wxValidator *validator = child->GetValidator();
1490         if ( validator && !validator->TransferToWindow() )
1491         {
1492             wxLogWarning(_("Could not transfer data to window"));
1493 #if wxUSE_LOG
1494             wxLog::FlushActive();
1495 #endif // wxUSE_LOG
1496
1497             return false;
1498         }
1499
1500         if ( recurse )
1501         {
1502             if ( !child->TransferDataToWindow() )
1503             {
1504                 // warning already given
1505                 return false;
1506             }
1507         }
1508     }
1509 #endif // wxUSE_VALIDATORS
1510
1511     return true;
1512 }
1513
1514 bool wxWindowBase::TransferDataFromWindow()
1515 {
1516 #if wxUSE_VALIDATORS
1517     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1518
1519     wxWindowList::compatibility_iterator node;
1520     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1521     {
1522         wxWindow *child = node->GetData();
1523         wxValidator *validator = child->GetValidator();
1524         if ( validator && !validator->TransferFromWindow() )
1525         {
1526             // nop warning here because the application is supposed to give
1527             // one itself - we don't know here what might have gone wrongly
1528
1529             return false;
1530         }
1531
1532         if ( recurse )
1533         {
1534             if ( !child->TransferDataFromWindow() )
1535             {
1536                 // warning already given
1537                 return false;
1538             }
1539         }
1540     }
1541 #endif // wxUSE_VALIDATORS
1542
1543     return true;
1544 }
1545
1546 void wxWindowBase::InitDialog()
1547 {
1548     wxInitDialogEvent event(GetId());
1549     event.SetEventObject( this );
1550     GetEventHandler()->ProcessEvent(event);
1551 }
1552
1553 // ----------------------------------------------------------------------------
1554 // context-sensitive help support
1555 // ----------------------------------------------------------------------------
1556
1557 #if wxUSE_HELP
1558
1559 // associate this help text with this window
1560 void wxWindowBase::SetHelpText(const wxString& text)
1561 {
1562     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1563     if ( helpProvider )
1564     {
1565         helpProvider->AddHelp(this, text);
1566     }
1567 }
1568
1569 // associate this help text with all windows with the same id as this
1570 // one
1571 void wxWindowBase::SetHelpTextForId(const wxString& text)
1572 {
1573     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1574     if ( helpProvider )
1575     {
1576         helpProvider->AddHelp(GetId(), text);
1577     }
1578 }
1579
1580 // get the help string associated with this window (may be empty)
1581 wxString wxWindowBase::GetHelpText() const
1582 {
1583     wxString text;
1584     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1585     if ( helpProvider )
1586     {
1587         text = helpProvider->GetHelp(this);
1588     }
1589
1590     return text;
1591 }
1592
1593 // show help for this window
1594 void wxWindowBase::OnHelp(wxHelpEvent& event)
1595 {
1596     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1597     if ( helpProvider )
1598     {
1599         if ( helpProvider->ShowHelp(this) )
1600         {
1601             // skip the event.Skip() below
1602             return;
1603         }
1604     }
1605
1606     event.Skip();
1607 }
1608
1609 #endif // wxUSE_HELP
1610
1611 // ----------------------------------------------------------------------------
1612 // tooltipsroot.Replace("\\", "/");
1613 // ----------------------------------------------------------------------------
1614
1615 #if wxUSE_TOOLTIPS
1616
1617 void wxWindowBase::SetToolTip( const wxString &tip )
1618 {
1619     // don't create the new tooltip if we already have one
1620     if ( m_tooltip )
1621     {
1622         m_tooltip->SetTip( tip );
1623     }
1624     else
1625     {
1626         SetToolTip( new wxToolTip( tip ) );
1627     }
1628
1629     // setting empty tooltip text does not remove the tooltip any more - use
1630     // SetToolTip((wxToolTip *)NULL) for this
1631 }
1632
1633 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1634 {
1635     if ( m_tooltip )
1636         delete m_tooltip;
1637
1638     m_tooltip = tooltip;
1639 }
1640
1641 #endif // wxUSE_TOOLTIPS
1642
1643 // ----------------------------------------------------------------------------
1644 // constraints and sizers
1645 // ----------------------------------------------------------------------------
1646
1647 #if wxUSE_CONSTRAINTS
1648
1649 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1650 {
1651     if ( m_constraints )
1652     {
1653         UnsetConstraints(m_constraints);
1654         delete m_constraints;
1655     }
1656     m_constraints = constraints;
1657     if ( m_constraints )
1658     {
1659         // Make sure other windows know they're part of a 'meaningful relationship'
1660         if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1661             m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1662         if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1663             m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1664         if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1665             m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1666         if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1667             m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1668         if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1669             m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1670         if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1671             m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1672         if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1673             m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1674         if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1675             m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1676     }
1677 }
1678
1679 // This removes any dangling pointers to this window in other windows'
1680 // constraintsInvolvedIn lists.
1681 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1682 {
1683     if ( c )
1684     {
1685         if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1686             c->left.GetOtherWindow()->RemoveConstraintReference(this);
1687         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1688             c->top.GetOtherWindow()->RemoveConstraintReference(this);
1689         if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1690             c->right.GetOtherWindow()->RemoveConstraintReference(this);
1691         if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1692             c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1693         if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1694             c->width.GetOtherWindow()->RemoveConstraintReference(this);
1695         if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1696             c->height.GetOtherWindow()->RemoveConstraintReference(this);
1697         if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1698             c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1699         if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1700             c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1701     }
1702 }
1703
1704 // Back-pointer to other windows we're involved with, so if we delete this
1705 // window, we must delete any constraints we're involved with.
1706 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1707 {
1708     if ( !m_constraintsInvolvedIn )
1709         m_constraintsInvolvedIn = new wxWindowList;
1710     if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1711         m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1712 }
1713
1714 // REMOVE back-pointer to other windows we're involved with.
1715 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1716 {
1717     if ( m_constraintsInvolvedIn )
1718         m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1719 }
1720
1721 // Reset any constraints that mention this window
1722 void wxWindowBase::DeleteRelatedConstraints()
1723 {
1724     if ( m_constraintsInvolvedIn )
1725     {
1726         wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1727         while (node)
1728         {
1729             wxWindow *win = node->GetData();
1730             wxLayoutConstraints *constr = win->GetConstraints();
1731
1732             // Reset any constraints involving this window
1733             if ( constr )
1734             {
1735                 constr->left.ResetIfWin(this);
1736                 constr->top.ResetIfWin(this);
1737                 constr->right.ResetIfWin(this);
1738                 constr->bottom.ResetIfWin(this);
1739                 constr->width.ResetIfWin(this);
1740                 constr->height.ResetIfWin(this);
1741                 constr->centreX.ResetIfWin(this);
1742                 constr->centreY.ResetIfWin(this);
1743             }
1744
1745             wxWindowList::compatibility_iterator next = node->GetNext();
1746             m_constraintsInvolvedIn->Erase(node);
1747             node = next;
1748         }
1749
1750         delete m_constraintsInvolvedIn;
1751         m_constraintsInvolvedIn = (wxWindowList *) NULL;
1752     }
1753 }
1754
1755 #endif // wxUSE_CONSTRAINTS
1756
1757 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1758 {
1759     if ( sizer == m_windowSizer)
1760         return;
1761
1762     if ( deleteOld )
1763         delete m_windowSizer;
1764
1765     m_windowSizer = sizer;
1766
1767     SetAutoLayout( sizer != NULL );
1768 }
1769
1770 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1771 {
1772     SetSizer( sizer, deleteOld );
1773     sizer->SetSizeHints( (wxWindow*) this );
1774 }
1775
1776
1777 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1778 {
1779     // adding a window to a sizer twice is going to result in fatal and
1780     // hard to debug problems later because when deleting the second
1781     // associated wxSizerItem we're going to dereference a dangling
1782     // pointer; so try to detect this as early as possible
1783     wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1784                   _T("Adding a window to the same sizer twice?") );
1785
1786     m_containingSizer = sizer;
1787 }
1788
1789 #if wxUSE_CONSTRAINTS
1790
1791 void wxWindowBase::SatisfyConstraints()
1792 {
1793     wxLayoutConstraints *constr = GetConstraints();
1794     bool wasOk = constr && constr->AreSatisfied();
1795
1796     ResetConstraints();   // Mark all constraints as unevaluated
1797
1798     int noChanges = 1;
1799
1800     // if we're a top level panel (i.e. our parent is frame/dialog), our
1801     // own constraints will never be satisfied any more unless we do it
1802     // here
1803     if ( wasOk )
1804     {
1805         while ( noChanges > 0 )
1806         {
1807             LayoutPhase1(&noChanges);
1808         }
1809     }
1810
1811     LayoutPhase2(&noChanges);
1812 }
1813
1814 #endif // wxUSE_CONSTRAINTS
1815
1816 bool wxWindowBase::Layout()
1817 {
1818     // If there is a sizer, use it instead of the constraints
1819     if ( GetSizer() )
1820     {
1821         int w, h;
1822         GetVirtualSize(&w, &h);
1823         GetSizer()->SetDimension( 0, 0, w, h );
1824     }
1825 #if wxUSE_CONSTRAINTS
1826     else
1827     {
1828         SatisfyConstraints(); // Find the right constraints values
1829         SetConstraintSizes(); // Recursively set the real window sizes
1830     }
1831 #endif
1832
1833     return true;
1834 }
1835
1836 #if wxUSE_CONSTRAINTS
1837
1838 // first phase of the constraints evaluation: set our own constraints
1839 bool wxWindowBase::LayoutPhase1(int *noChanges)
1840 {
1841     wxLayoutConstraints *constr = GetConstraints();
1842
1843     return !constr || constr->SatisfyConstraints(this, noChanges);
1844 }
1845
1846 // second phase: set the constraints for our children
1847 bool wxWindowBase::LayoutPhase2(int *noChanges)
1848 {
1849     *noChanges = 0;
1850
1851     // Layout children
1852     DoPhase(1);
1853
1854     // Layout grand children
1855     DoPhase(2);
1856
1857     return true;
1858 }
1859
1860 // Do a phase of evaluating child constraints
1861 bool wxWindowBase::DoPhase(int phase)
1862 {
1863     // the list containing the children for which the constraints are already
1864     // set correctly
1865     wxWindowList succeeded;
1866
1867     // the max number of iterations we loop before concluding that we can't set
1868     // the constraints
1869     static const int maxIterations = 500;
1870
1871     for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1872     {
1873         int noChanges = 0;
1874
1875         // loop over all children setting their constraints
1876         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1877               node;
1878               node = node->GetNext() )
1879         {
1880             wxWindow *child = node->GetData();
1881             if ( child->IsTopLevel() )
1882             {
1883                 // top level children are not inside our client area
1884                 continue;
1885             }
1886
1887             if ( !child->GetConstraints() || succeeded.Find(child) )
1888             {
1889                 // this one is either already ok or nothing we can do about it
1890                 continue;
1891             }
1892
1893             int tempNoChanges = 0;
1894             bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1895                                       : child->LayoutPhase2(&tempNoChanges);
1896             noChanges += tempNoChanges;
1897
1898             if ( success )
1899             {
1900                 succeeded.Append(child);
1901             }
1902         }
1903
1904         if ( !noChanges )
1905         {
1906             // constraints are set
1907             break;
1908         }
1909     }
1910
1911     return true;
1912 }
1913
1914 void wxWindowBase::ResetConstraints()
1915 {
1916     wxLayoutConstraints *constr = GetConstraints();
1917     if ( constr )
1918     {
1919         constr->left.SetDone(false);
1920         constr->top.SetDone(false);
1921         constr->right.SetDone(false);
1922         constr->bottom.SetDone(false);
1923         constr->width.SetDone(false);
1924         constr->height.SetDone(false);
1925         constr->centreX.SetDone(false);
1926         constr->centreY.SetDone(false);
1927     }
1928
1929     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1930     while (node)
1931     {
1932         wxWindow *win = node->GetData();
1933         if ( !win->IsTopLevel() )
1934             win->ResetConstraints();
1935         node = node->GetNext();
1936     }
1937 }
1938
1939 // Need to distinguish between setting the 'fake' size for windows and sizers,
1940 // and setting the real values.
1941 void wxWindowBase::SetConstraintSizes(bool recurse)
1942 {
1943     wxLayoutConstraints *constr = GetConstraints();
1944     if ( constr && constr->AreSatisfied() )
1945     {
1946         int x = constr->left.GetValue();
1947         int y = constr->top.GetValue();
1948         int w = constr->width.GetValue();
1949         int h = constr->height.GetValue();
1950
1951         if ( (constr->width.GetRelationship() != wxAsIs ) ||
1952              (constr->height.GetRelationship() != wxAsIs) )
1953         {
1954             SetSize(x, y, w, h);
1955         }
1956         else
1957         {
1958             // If we don't want to resize this window, just move it...
1959             Move(x, y);
1960         }
1961     }
1962     else if ( constr )
1963     {
1964         wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1965                    GetClassInfo()->GetClassName(),
1966                    GetName().c_str());
1967     }
1968
1969     if ( recurse )
1970     {
1971         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1972         while (node)
1973         {
1974             wxWindow *win = node->GetData();
1975             if ( !win->IsTopLevel() && win->GetConstraints() )
1976                 win->SetConstraintSizes();
1977             node = node->GetNext();
1978         }
1979     }
1980 }
1981
1982 // Only set the size/position of the constraint (if any)
1983 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1984 {
1985     wxLayoutConstraints *constr = GetConstraints();
1986     if ( constr )
1987     {
1988         if ( x != wxDefaultCoord )
1989         {
1990             constr->left.SetValue(x);
1991             constr->left.SetDone(true);
1992         }
1993         if ( y != wxDefaultCoord )
1994         {
1995             constr->top.SetValue(y);
1996             constr->top.SetDone(true);
1997         }
1998         if ( w != wxDefaultCoord )
1999         {
2000             constr->width.SetValue(w);
2001             constr->width.SetDone(true);
2002         }
2003         if ( h != wxDefaultCoord )
2004         {
2005             constr->height.SetValue(h);
2006             constr->height.SetDone(true);
2007         }
2008     }
2009 }
2010
2011 void wxWindowBase::MoveConstraint(int x, int y)
2012 {
2013     wxLayoutConstraints *constr = GetConstraints();
2014     if ( constr )
2015     {
2016         if ( x != wxDefaultCoord )
2017         {
2018             constr->left.SetValue(x);
2019             constr->left.SetDone(true);
2020         }
2021         if ( y != wxDefaultCoord )
2022         {
2023             constr->top.SetValue(y);
2024             constr->top.SetDone(true);
2025         }
2026     }
2027 }
2028
2029 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
2030 {
2031     wxLayoutConstraints *constr = GetConstraints();
2032     if ( constr )
2033     {
2034         *w = constr->width.GetValue();
2035         *h = constr->height.GetValue();
2036     }
2037     else
2038         GetSize(w, h);
2039 }
2040
2041 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
2042 {
2043     wxLayoutConstraints *constr = GetConstraints();
2044     if ( constr )
2045     {
2046         *w = constr->width.GetValue();
2047         *h = constr->height.GetValue();
2048     }
2049     else
2050         GetClientSize(w, h);
2051 }
2052
2053 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
2054 {
2055     wxLayoutConstraints *constr = GetConstraints();
2056     if ( constr )
2057     {
2058         *x = constr->left.GetValue();
2059         *y = constr->top.GetValue();
2060     }
2061     else
2062         GetPosition(x, y);
2063 }
2064
2065 #endif // wxUSE_CONSTRAINTS
2066
2067 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
2068 {
2069     // don't do it for the dialogs/frames - they float independently of their
2070     // parent
2071     if ( !IsTopLevel() )
2072     {
2073         wxWindow *parent = GetParent();
2074         if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
2075         {
2076             wxPoint pt(parent->GetClientAreaOrigin());
2077             x += pt.x;
2078             y += pt.y;
2079         }
2080     }
2081 }
2082
2083 // ----------------------------------------------------------------------------
2084 // do Update UI processing for child controls
2085 // ----------------------------------------------------------------------------
2086
2087 void wxWindowBase::UpdateWindowUI(long flags)
2088 {
2089     wxUpdateUIEvent event(GetId());
2090     event.SetEventObject(this);
2091
2092     if ( GetEventHandler()->ProcessEvent(event) )
2093     {
2094         DoUpdateWindowUI(event);
2095     }
2096
2097     if (flags & wxUPDATE_UI_RECURSE)
2098     {
2099         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2100         while (node)
2101         {
2102             wxWindow* child = (wxWindow*) node->GetData();
2103             child->UpdateWindowUI(flags);
2104             node = node->GetNext();
2105         }
2106     }
2107 }
2108
2109 // do the window-specific processing after processing the update event
2110 // TODO: take specific knowledge out of this function and
2111 // put in each control's base class. Unfortunately we don't
2112 // yet have base implementation files for wxCheckBox and wxRadioButton.
2113 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2114 {
2115     if ( event.GetSetEnabled() )
2116         Enable(event.GetEnabled());
2117
2118 #if wxUSE_CONTROLS
2119     if ( event.GetSetText() )
2120     {
2121         wxControl *control = wxDynamicCastThis(wxControl);
2122         if ( control )
2123         {
2124             if ( event.GetText() != control->GetLabel() )
2125                 control->SetLabel(event.GetText());
2126         }
2127     }
2128 #endif // wxUSE_CONTROLS
2129
2130     if ( event.GetSetChecked() )
2131     {
2132 #if wxUSE_CHECKBOX
2133         wxCheckBox *checkbox = wxDynamicCastThis(wxCheckBox);
2134         if ( checkbox )
2135         {
2136             checkbox->SetValue(event.GetChecked());
2137         }
2138 #endif // wxUSE_CHECKBOX
2139
2140 #if wxUSE_RADIOBTN
2141         wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);
2142         if ( radiobtn )
2143         {
2144             radiobtn->SetValue(event.GetChecked());
2145         }
2146 #endif // wxUSE_RADIOBTN
2147     }
2148 }
2149
2150 #if 0
2151 // call internal idle recursively
2152 // may be obsolete (wait until OnIdle scheme stabilises)
2153 void wxWindowBase::ProcessInternalIdle()
2154 {
2155     OnInternalIdle();
2156
2157     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2158     while (node)
2159     {
2160         wxWindow *child = node->GetData();
2161         child->ProcessInternalIdle();
2162         node = node->GetNext();
2163     }
2164 }
2165 #endif
2166
2167 // ----------------------------------------------------------------------------
2168 // dialog units translations
2169 // ----------------------------------------------------------------------------
2170
2171 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2172 {
2173     int charWidth = GetCharWidth();
2174     int charHeight = GetCharHeight();
2175     wxPoint pt2 = wxDefaultPosition;
2176     if (pt.x != wxDefaultCoord)
2177         pt2.x = (int) ((pt.x * 4) / charWidth);
2178     if (pt.y != wxDefaultCoord)
2179         pt2.y = (int) ((pt.y * 8) / charHeight);
2180
2181     return pt2;
2182 }
2183
2184 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2185 {
2186     int charWidth = GetCharWidth();
2187     int charHeight = GetCharHeight();
2188     wxPoint pt2 = wxDefaultPosition;
2189     if (pt.x != wxDefaultCoord)
2190         pt2.x = (int) ((pt.x * charWidth) / 4);
2191     if (pt.y != wxDefaultCoord)
2192         pt2.y = (int) ((pt.y * charHeight) / 8);
2193
2194     return pt2;
2195 }
2196
2197 // ----------------------------------------------------------------------------
2198 // event handlers
2199 // ----------------------------------------------------------------------------
2200
2201 // propagate the colour change event to the subwindows
2202 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2203 {
2204     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2205     while ( node )
2206     {
2207         // Only propagate to non-top-level windows
2208         wxWindow *win = node->GetData();
2209         if ( !win->IsTopLevel() )
2210         {
2211             wxSysColourChangedEvent event2;
2212             event.SetEventObject(win);
2213             win->GetEventHandler()->ProcessEvent(event2);
2214         }
2215
2216         node = node->GetNext();
2217     }
2218
2219     Refresh();
2220 }
2221
2222 // the default action is to populate dialog with data when it's created,
2223 // and nudge the UI into displaying itself correctly in case
2224 // we've turned the wxUpdateUIEvents frequency down low.
2225 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2226 {
2227     TransferDataToWindow();
2228
2229     // Update the UI at this point
2230     UpdateWindowUI(wxUPDATE_UI_RECURSE);
2231 }
2232
2233 // process Ctrl-Alt-mclick
2234 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2235 {
2236 #if wxUSE_MSGDLG
2237     if ( event.ControlDown() && event.AltDown() )
2238     {
2239         // don't translate these strings
2240         wxString port;
2241
2242 #ifdef __WXUNIVERSAL__
2243         port = _T("Univ/");
2244 #endif // __WXUNIVERSAL__
2245
2246         switch ( wxGetOsVersion() )
2247         {
2248             case wxMOTIF_X:     port += _T("Motif"); break;
2249             case wxMAC:
2250             case wxMAC_DARWIN:  port += _T("Mac"); break;
2251             case wxBEOS:        port += _T("BeOS"); break;
2252             case wxGTK:
2253             case wxGTK_WIN32:
2254             case wxGTK_OS2:
2255             case wxGTK_BEOS:    port += _T("GTK"); break;
2256             case wxWINDOWS:
2257             case wxPENWINDOWS:
2258             case wxWINDOWS_NT:
2259             case wxWIN32S:
2260             case wxWIN95:
2261             case wxWIN386:      port += _T("MS Windows"); break;
2262             case wxMGL_UNIX:
2263             case wxMGL_X:
2264             case wxMGL_WIN32:
2265             case wxMGL_OS2:     port += _T("MGL"); break;
2266             case wxWINDOWS_OS2:
2267             case wxOS2_PM:      port += _T("OS/2"); break;
2268             default:            port += _T("unknown"); break;
2269         }
2270
2271         wxMessageBox(wxString::Format(
2272                                       _T(
2273                                         "       wxWidgets Library (%s port)\nVersion %u.%u.%u%s%s, compiled at %s %s\n   Copyright (c) 1995-2005 wxWidgets team"
2274                                         ),
2275                                       port.c_str(),
2276                                       wxMAJOR_VERSION,
2277                                       wxMINOR_VERSION,
2278                                       wxRELEASE_NUMBER,
2279 #if wxUSE_UNICODE
2280                                       L" (Unicode)",
2281 #else
2282                                       "",
2283 #endif
2284 #ifdef __WXDEBUG__
2285                                       _T(" Debug build"),
2286 #else
2287                                       wxEmptyString,
2288 #endif
2289                                       __TDATE__,
2290                                       __TTIME__
2291                                      ),
2292                      _T("wxWidgets information"),
2293                      wxICON_INFORMATION | wxOK,
2294                      (wxWindow *)this);
2295     }
2296     else
2297 #endif // wxUSE_MSGDLG
2298     {
2299         event.Skip();
2300     }
2301 }
2302
2303 // ----------------------------------------------------------------------------
2304 // accessibility
2305 // ----------------------------------------------------------------------------
2306
2307 #if wxUSE_ACCESSIBILITY
2308 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2309 {
2310     if (m_accessible && (accessible != m_accessible))
2311         delete m_accessible;
2312     m_accessible = accessible;
2313     if (m_accessible)
2314         m_accessible->SetWindow((wxWindow*) this);
2315 }
2316
2317 // Returns the accessible object, creating if necessary.
2318 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2319 {
2320     if (!m_accessible)
2321         m_accessible = CreateAccessible();
2322     return m_accessible;
2323 }
2324
2325 // Override to create a specific accessible object.
2326 wxAccessible* wxWindowBase::CreateAccessible()
2327 {
2328     return new wxWindowAccessible((wxWindow*) this);
2329 }
2330
2331 #endif
2332
2333 // ----------------------------------------------------------------------------
2334 // list classes implementation
2335 // ----------------------------------------------------------------------------
2336
2337 #if wxUSE_STL
2338
2339 #include <wx/listimpl.cpp>
2340 WX_DEFINE_LIST(wxWindowList);
2341
2342 #else
2343
2344 void wxWindowListNode::DeleteData()
2345 {
2346     delete (wxWindow *)GetData();
2347 }
2348
2349 #endif
2350
2351 // ----------------------------------------------------------------------------
2352 // borders
2353 // ----------------------------------------------------------------------------
2354
2355 wxBorder wxWindowBase::GetBorder(long flags) const
2356 {
2357     wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2358     if ( border == wxBORDER_DEFAULT )
2359     {
2360         border = GetDefaultBorder();
2361     }
2362
2363     return border;
2364 }
2365
2366 wxBorder wxWindowBase::GetDefaultBorder() const
2367 {
2368     return wxBORDER_NONE;
2369 }
2370
2371 // ----------------------------------------------------------------------------
2372 // hit testing
2373 // ----------------------------------------------------------------------------
2374
2375 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2376 {
2377     // here we just check if the point is inside the window or not
2378
2379     // check the top and left border first
2380     bool outside = x < 0 || y < 0;
2381     if ( !outside )
2382     {
2383         // check the right and bottom borders too
2384         wxSize size = GetSize();
2385         outside = x >= size.x || y >= size.y;
2386     }
2387
2388     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2389 }
2390
2391 // ----------------------------------------------------------------------------
2392 // mouse capture
2393 // ----------------------------------------------------------------------------
2394
2395 struct WXDLLEXPORT wxWindowNext
2396 {
2397     wxWindow *win;
2398     wxWindowNext *next;
2399 } *wxWindowBase::ms_winCaptureNext = NULL;
2400
2401 void wxWindowBase::CaptureMouse()
2402 {
2403     wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), this);
2404
2405     wxWindow *winOld = GetCapture();
2406     if ( winOld )
2407     {
2408         ((wxWindowBase*) winOld)->DoReleaseMouse();
2409
2410         // save it on stack
2411         wxWindowNext *item = new wxWindowNext;
2412         item->win = winOld;
2413         item->next = ms_winCaptureNext;
2414         ms_winCaptureNext = item;
2415     }
2416     //else: no mouse capture to save
2417
2418     DoCaptureMouse();
2419 }
2420
2421 void wxWindowBase::ReleaseMouse()
2422 {
2423     wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), this);
2424
2425     wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2426
2427     DoReleaseMouse();
2428
2429     if ( ms_winCaptureNext )
2430     {
2431         ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2432
2433         wxWindowNext *item = ms_winCaptureNext;
2434         ms_winCaptureNext = item->next;
2435         delete item;
2436     }
2437     //else: stack is empty, no previous capture
2438
2439     wxLogTrace(_T("mousecapture"),
2440         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2441         GetCapture());
2442 }
2443
2444 #if wxUSE_HOTKEY
2445
2446 bool
2447 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2448                              int WXUNUSED(modifiers),
2449                              int WXUNUSED(keycode))
2450 {
2451     // not implemented
2452     return false;
2453 }
2454
2455 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2456 {
2457     // not implemented
2458     return false;
2459 }
2460
2461 #endif // wxUSE_HOTKEY
2462
2463 void wxWindowBase::SendDestroyEvent()
2464 {
2465     wxWindowDestroyEvent event;
2466     event.SetEventObject(this);
2467     event.SetId(GetId());
2468     GetEventHandler()->ProcessEvent(event);
2469 }
2470
2471 // ----------------------------------------------------------------------------
2472 // event processing
2473 // ----------------------------------------------------------------------------
2474
2475 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2476 {
2477 #if wxUSE_VALIDATORS
2478     // Can only use the validator of the window which
2479     // is receiving the event
2480     if ( event.GetEventObject() == this )
2481     {
2482         wxValidator *validator = GetValidator();
2483         if ( validator && validator->ProcessEvent(event) )
2484         {
2485             return true;
2486         }
2487     }
2488 #endif // wxUSE_VALIDATORS
2489
2490     return false;
2491 }
2492
2493 bool wxWindowBase::TryParent(wxEvent& event)
2494 {
2495     // carry on up the parent-child hierarchy if the propgation count hasn't
2496     // reached zero yet
2497     if ( event.ShouldPropagate() )
2498     {
2499         // honour the requests to stop propagation at this window: this is
2500         // used by the dialogs, for example, to prevent processing the events
2501         // from the dialog controls in the parent frame which rarely, if ever,
2502         // makes sense
2503         if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2504         {
2505             wxWindow *parent = GetParent();
2506             if ( parent && !parent->IsBeingDeleted() )
2507             {
2508                 wxPropagateOnce propagateOnce(event);
2509
2510                 return parent->GetEventHandler()->ProcessEvent(event);
2511             }
2512         }
2513     }
2514
2515     return wxEvtHandler::TryParent(event);
2516 }
2517
2518 // ----------------------------------------------------------------------------
2519 // keyboard navigation
2520 // ----------------------------------------------------------------------------
2521
2522 // Navigates in the specified direction.
2523 bool wxWindowBase::Navigate(int flags)
2524 {
2525     wxNavigationKeyEvent eventNav;
2526     eventNav.SetFlags(flags);
2527     eventNav.SetEventObject(this);
2528     if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2529     {
2530         return true;
2531     }
2532     return false;
2533 }
2534
2535 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2536 {
2537     // check that we're not a top level window
2538     wxCHECK_RET( GetParent(),
2539                     _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2540
2541     // detect the special case when we have nothing to do anyhow and when the
2542     // code below wouldn't work
2543     if ( win == this )
2544         return;
2545
2546     // find the target window in the siblings list
2547     wxWindowList& siblings = GetParent()->GetChildren();
2548     wxWindowList::compatibility_iterator i = siblings.Find(win);
2549     wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2550
2551     // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2552     // can't just move the node around
2553     wxWindow *self = (wxWindow *)this;
2554     siblings.DeleteObject(self);
2555     if ( move == MoveAfter )
2556     {
2557         i = i->GetNext();
2558     }
2559
2560     if ( i )
2561     {
2562         siblings.Insert(i, self);
2563     }
2564     else // MoveAfter and win was the last sibling
2565     {
2566         siblings.Append(self);
2567     }
2568 }
2569
2570 // ----------------------------------------------------------------------------
2571 // focus handling
2572 // ----------------------------------------------------------------------------
2573
2574 /*static*/ wxWindow* wxWindowBase::FindFocus()
2575 {
2576     wxWindowBase *win = DoFindFocus();
2577     return win ? win->GetMainWindowOfCompositeControl() : NULL;
2578 }
2579
2580 // ----------------------------------------------------------------------------
2581 // global functions
2582 // ----------------------------------------------------------------------------
2583
2584 wxWindow* wxGetTopLevelParent(wxWindow *win)
2585 {
2586     while ( win && !win->IsTopLevel() )
2587          win = win->GetParent();
2588
2589     return win;
2590 }
2591
2592 #if wxUSE_ACCESSIBILITY
2593 // ----------------------------------------------------------------------------
2594 // accessible object for windows
2595 // ----------------------------------------------------------------------------
2596
2597 // Can return either a child object, or an integer
2598 // representing the child element, starting from 1.
2599 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2600 {
2601     wxASSERT( GetWindow() != NULL );
2602     if (!GetWindow())
2603         return wxACC_FAIL;
2604
2605     return wxACC_NOT_IMPLEMENTED;
2606 }
2607
2608 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2609 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2610 {
2611     wxASSERT( GetWindow() != NULL );
2612     if (!GetWindow())
2613         return wxACC_FAIL;
2614
2615     wxWindow* win = NULL;
2616     if (elementId == 0)
2617     {
2618         win = GetWindow();
2619     }
2620     else
2621     {
2622         if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2623         {
2624             win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2625         }
2626         else
2627             return wxACC_FAIL;
2628     }
2629     if (win)
2630     {
2631         rect = win->GetRect();
2632         if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2633             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2634         return wxACC_OK;
2635     }
2636
2637     return wxACC_NOT_IMPLEMENTED;
2638 }
2639
2640 // Navigates from fromId to toId/toObject.
2641 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2642                              int* WXUNUSED(toId), wxAccessible** toObject)
2643 {
2644     wxASSERT( GetWindow() != NULL );
2645     if (!GetWindow())
2646         return wxACC_FAIL;
2647
2648     switch (navDir)
2649     {
2650     case wxNAVDIR_FIRSTCHILD:
2651         {
2652             if (GetWindow()->GetChildren().GetCount() == 0)
2653                 return wxACC_FALSE;
2654             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2655             *toObject = childWindow->GetOrCreateAccessible();
2656
2657             return wxACC_OK;
2658         }
2659     case wxNAVDIR_LASTCHILD:
2660         {
2661             if (GetWindow()->GetChildren().GetCount() == 0)
2662                 return wxACC_FALSE;
2663             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2664             *toObject = childWindow->GetOrCreateAccessible();
2665
2666             return wxACC_OK;
2667         }
2668     case wxNAVDIR_RIGHT:
2669     case wxNAVDIR_DOWN:
2670     case wxNAVDIR_NEXT:
2671         {
2672             wxWindowList::compatibility_iterator node =
2673                 wxWindowList::compatibility_iterator();
2674             if (fromId == 0)
2675             {
2676                 // Can't navigate to sibling of this window
2677                 // if we're a top-level window.
2678                 if (!GetWindow()->GetParent())
2679                     return wxACC_NOT_IMPLEMENTED;
2680
2681                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2682             }
2683             else
2684             {
2685                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2686                     node = GetWindow()->GetChildren().Item(fromId-1);
2687             }
2688
2689             if (node && node->GetNext())
2690             {
2691                 wxWindow* nextWindow = node->GetNext()->GetData();
2692                 *toObject = nextWindow->GetOrCreateAccessible();
2693                 return wxACC_OK;
2694             }
2695             else
2696                 return wxACC_FALSE;
2697         }
2698     case wxNAVDIR_LEFT:
2699     case wxNAVDIR_UP:
2700     case wxNAVDIR_PREVIOUS:
2701         {
2702             wxWindowList::compatibility_iterator node =
2703                 wxWindowList::compatibility_iterator();
2704             if (fromId == 0)
2705             {
2706                 // Can't navigate to sibling of this window
2707                 // if we're a top-level window.
2708                 if (!GetWindow()->GetParent())
2709                     return wxACC_NOT_IMPLEMENTED;
2710
2711                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2712             }
2713             else
2714             {
2715                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2716                     node = GetWindow()->GetChildren().Item(fromId-1);
2717             }
2718
2719             if (node && node->GetPrevious())
2720             {
2721                 wxWindow* previousWindow = node->GetPrevious()->GetData();
2722                 *toObject = previousWindow->GetOrCreateAccessible();
2723                 return wxACC_OK;
2724             }
2725             else
2726                 return wxACC_FALSE;
2727         }
2728     }
2729
2730     return wxACC_NOT_IMPLEMENTED;
2731 }
2732
2733 // Gets the name of the specified object.
2734 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2735 {
2736     wxASSERT( GetWindow() != NULL );
2737     if (!GetWindow())
2738         return wxACC_FAIL;
2739
2740     wxString title;
2741
2742     // If a child, leave wxWidgets to call the function on the actual
2743     // child object.
2744     if (childId > 0)
2745         return wxACC_NOT_IMPLEMENTED;
2746
2747     // This will eventually be replaced by specialised
2748     // accessible classes, one for each kind of wxWidgets
2749     // control or window.
2750 #if wxUSE_BUTTON
2751     if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2752         title = ((wxButton*) GetWindow())->GetLabel();
2753     else
2754 #endif
2755         title = GetWindow()->GetName();
2756
2757     if (!title.empty())
2758     {
2759         *name = title;
2760         return wxACC_OK;
2761     }
2762     else
2763         return wxACC_NOT_IMPLEMENTED;
2764 }
2765
2766 // Gets the number of children.
2767 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2768 {
2769     wxASSERT( GetWindow() != NULL );
2770     if (!GetWindow())
2771         return wxACC_FAIL;
2772
2773     *childId = (int) GetWindow()->GetChildren().GetCount();
2774     return wxACC_OK;
2775 }
2776
2777 // Gets the specified child (starting from 1).
2778 // If *child is NULL and return value is wxACC_OK,
2779 // this means that the child is a simple element and
2780 // not an accessible object.
2781 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2782 {
2783     wxASSERT( GetWindow() != NULL );
2784     if (!GetWindow())
2785         return wxACC_FAIL;
2786
2787     if (childId == 0)
2788     {
2789         *child = this;
2790         return wxACC_OK;
2791     }
2792
2793     if (childId > (int) GetWindow()->GetChildren().GetCount())
2794         return wxACC_FAIL;
2795
2796     wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2797     *child = childWindow->GetOrCreateAccessible();
2798     if (*child)
2799         return wxACC_OK;
2800     else
2801         return wxACC_FAIL;
2802 }
2803
2804 // Gets the parent, or NULL.
2805 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2806 {
2807     wxASSERT( GetWindow() != NULL );
2808     if (!GetWindow())
2809         return wxACC_FAIL;
2810
2811     wxWindow* parentWindow = GetWindow()->GetParent();
2812     if (!parentWindow)
2813     {
2814         *parent = NULL;
2815         return wxACC_OK;
2816     }
2817     else
2818     {
2819         *parent = parentWindow->GetOrCreateAccessible();
2820         if (*parent)
2821             return wxACC_OK;
2822         else
2823             return wxACC_FAIL;
2824     }
2825 }
2826
2827 // Performs the default action. childId is 0 (the action for this object)
2828 // or > 0 (the action for a child).
2829 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2830 // window (e.g. an edit control).
2831 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2832 {
2833     wxASSERT( GetWindow() != NULL );
2834     if (!GetWindow())
2835         return wxACC_FAIL;
2836
2837     return wxACC_NOT_IMPLEMENTED;
2838 }
2839
2840 // Gets the default action for this object (0) or > 0 (the action for a child).
2841 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2842 // string if there is no action.
2843 // The retrieved string describes the action that is performed on an object,
2844 // not what the object does as a result. For example, a toolbar button that prints
2845 // a document has a default action of "Press" rather than "Prints the current document."
2846 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2847 {
2848     wxASSERT( GetWindow() != NULL );
2849     if (!GetWindow())
2850         return wxACC_FAIL;
2851
2852     return wxACC_NOT_IMPLEMENTED;
2853 }
2854
2855 // Returns the description for this object or a child.
2856 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2857 {
2858     wxASSERT( GetWindow() != NULL );
2859     if (!GetWindow())
2860         return wxACC_FAIL;
2861
2862     wxString ht(GetWindow()->GetHelpText());
2863     if (!ht.empty())
2864     {
2865         *description = ht;
2866         return wxACC_OK;
2867     }
2868     return wxACC_NOT_IMPLEMENTED;
2869 }
2870
2871 // Returns help text for this object or a child, similar to tooltip text.
2872 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2873 {
2874     wxASSERT( GetWindow() != NULL );
2875     if (!GetWindow())
2876         return wxACC_FAIL;
2877
2878     wxString ht(GetWindow()->GetHelpText());
2879     if (!ht.empty())
2880     {
2881         *helpText = ht;
2882         return wxACC_OK;
2883     }
2884     return wxACC_NOT_IMPLEMENTED;
2885 }
2886
2887 // Returns the keyboard shortcut for this object or child.
2888 // Return e.g. ALT+K
2889 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2890 {
2891     wxASSERT( GetWindow() != NULL );
2892     if (!GetWindow())
2893         return wxACC_FAIL;
2894
2895     return wxACC_NOT_IMPLEMENTED;
2896 }
2897
2898 // Returns a role constant.
2899 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2900 {
2901     wxASSERT( GetWindow() != NULL );
2902     if (!GetWindow())
2903         return wxACC_FAIL;
2904
2905     // If a child, leave wxWidgets to call the function on the actual
2906     // child object.
2907     if (childId > 0)
2908         return wxACC_NOT_IMPLEMENTED;
2909
2910     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2911         return wxACC_NOT_IMPLEMENTED;
2912 #if wxUSE_STATUSBAR
2913     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2914         return wxACC_NOT_IMPLEMENTED;
2915 #endif
2916 #if wxUSE_TOOLBAR
2917     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2918         return wxACC_NOT_IMPLEMENTED;
2919 #endif
2920
2921     //*role = wxROLE_SYSTEM_CLIENT;
2922     *role = wxROLE_SYSTEM_CLIENT;
2923     return wxACC_OK;
2924
2925     #if 0
2926     return wxACC_NOT_IMPLEMENTED;
2927     #endif
2928 }
2929
2930 // Returns a state constant.
2931 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2932 {
2933     wxASSERT( GetWindow() != NULL );
2934     if (!GetWindow())
2935         return wxACC_FAIL;
2936
2937     // If a child, leave wxWidgets to call the function on the actual
2938     // child object.
2939     if (childId > 0)
2940         return wxACC_NOT_IMPLEMENTED;
2941
2942     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2943         return wxACC_NOT_IMPLEMENTED;
2944
2945 #if wxUSE_STATUSBAR
2946     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2947         return wxACC_NOT_IMPLEMENTED;
2948 #endif
2949 #if wxUSE_TOOLBAR
2950     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2951         return wxACC_NOT_IMPLEMENTED;
2952 #endif
2953
2954     *state = 0;
2955     return wxACC_OK;
2956
2957     #if 0
2958     return wxACC_NOT_IMPLEMENTED;
2959     #endif
2960 }
2961
2962 // Returns a localized string representing the value for the object
2963 // or child.
2964 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2965 {
2966     wxASSERT( GetWindow() != NULL );
2967     if (!GetWindow())
2968         return wxACC_FAIL;
2969
2970     return wxACC_NOT_IMPLEMENTED;
2971 }
2972
2973 // Selects the object or child.
2974 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2975 {
2976     wxASSERT( GetWindow() != NULL );
2977     if (!GetWindow())
2978         return wxACC_FAIL;
2979
2980     return wxACC_NOT_IMPLEMENTED;
2981 }
2982
2983 // Gets the window with the keyboard focus.
2984 // If childId is 0 and child is NULL, no object in
2985 // this subhierarchy has the focus.
2986 // If this object has the focus, child should be 'this'.
2987 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2988 {
2989     wxASSERT( GetWindow() != NULL );
2990     if (!GetWindow())
2991         return wxACC_FAIL;
2992
2993     return wxACC_NOT_IMPLEMENTED;
2994 }
2995
2996 // Gets a variant representing the selected children
2997 // of this object.
2998 // Acceptable values:
2999 // - a null variant (IsNull() returns true)
3000 // - a list variant (GetType() == wxT("list")
3001 // - an integer representing the selected child element,
3002 //   or 0 if this object is selected (GetType() == wxT("long")
3003 // - a "void*" pointer to a wxAccessible child object
3004 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
3005 {
3006     wxASSERT( GetWindow() != NULL );
3007     if (!GetWindow())
3008         return wxACC_FAIL;
3009
3010     return wxACC_NOT_IMPLEMENTED;
3011 }
3012
3013 #endif // wxUSE_ACCESSIBILITY