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