src/common/wincmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/window.cpp
   3 // Purpose:     common (to all ports) wxWindow functions
   4 // Author:      Julian Smart, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     13/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/string.h"
  29     #include "wx/log.h"
  30     #include "wx/intl.h"
  31     #include "wx/frame.h"
  32     #include "wx/window.h"
  33     #include "wx/control.h"
  34     #include "wx/checkbox.h"
  35     #include "wx/radiobut.h"
  36     #include "wx/statbox.h"
  37     #include "wx/textctrl.h"
  38     #include "wx/settings.h"
  39     #include "wx/dialog.h"
  40     #include "wx/msgdlg.h"
  41     #include "wx/statusbr.h"
  42     #include "wx/toolbar.h"
  43     #include "wx/dcclient.h"
  44     #include "wx/scrolbar.h"
  45     #include "wx/layout.h"
  46     #include "wx/sizer.h"
  47 #endif //WX_PRECOMP
  48
  49 #if wxUSE_DRAG_AND_DROP
  50     #include "wx/dnd.h"
  51 #endif // wxUSE_DRAG_AND_DROP
  52
  53 #if wxUSE_ACCESSIBILITY
  54     #include "wx/access.h"
  55 #endif
  56
  57 #if wxUSE_HELP
  58     #include "wx/cshelp.h"
  59 #endif // wxUSE_HELP
  60
  61 #if wxUSE_TOOLTIPS
  62     #include "wx/tooltip.h"
  63 #endif // wxUSE_TOOLTIPS
  64
  65 #if wxUSE_CARET
  66     #include "wx/caret.h"
  67 #endif // wxUSE_CARET
  68
  69 #if wxUSE_SYSTEM_OPTIONS
  70     #include "wx/sysopt.h"
  71 #endif
  72
  73 // For reporting compile- and runtime version of GTK+ in the ctrl+alt+mclick dialog.
  74 // The gtk includes don't pull any other headers in, at least not on my system - MR
  75 #ifdef __WXGTK__
  76     #ifdef __WXGTK20__
  77         #include <gtk/gtkversion.h>
  78     #else
  79         #include <gtk/gtkfeatures.h>
  80     #endif
  81     extern const unsigned int gtk_major_version;
  82     extern const unsigned int gtk_minor_version;
  83     extern const unsigned int gtk_micro_version;
  84 #endif
  85
  86 // Windows List
  87 WXDLLIMPEXP_DATA_CORE(wxWindowList) wxTopLevelWindows;
  88
  89 // ----------------------------------------------------------------------------
  90 // static data
  91 // ----------------------------------------------------------------------------
  92
  93 #if defined(__WXPALMOS__)
  94 int wxWindowBase::ms_lastControlId = 32767;
  95 #elif defined(__WXPM__)
  96 int wxWindowBase::ms_lastControlId = 2000;
  97 #else
  98 int wxWindowBase::ms_lastControlId = -200;
  99 #endif
 100
 101 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
 102
 103 // ----------------------------------------------------------------------------
 104 // event table
 105 // ----------------------------------------------------------------------------
 106
 107 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
 108     EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
 109     EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
 110     EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
 111
 112 #if wxUSE_HELP
 113     EVT_HELP(wxID_ANY, wxWindowBase::OnHelp)
 114 #endif // wxUSE_HELP
 115
 116 END_EVENT_TABLE()
 117
 118 // ============================================================================
 119 // implementation of the common functionality of the wxWindow class
 120 // ============================================================================
 121
 122 // ----------------------------------------------------------------------------
 123 // initialization
 124 // ----------------------------------------------------------------------------
 125
 126 // the default initialization
 127 wxWindowBase::wxWindowBase()
 128 {
 129     // no window yet, no parent nor children
 130     m_parent = (wxWindow *)NULL;
 131     m_windowId = wxID_ANY;
 132
 133     // no constraints on the minimal window size
 134     m_minWidth =
 135     m_maxWidth = wxDefaultCoord;
 136     m_minHeight =
 137     m_maxHeight = wxDefaultCoord;
 138
 139     // invalidiated cache value
 140     m_bestSizeCache = wxDefaultSize;
 141
 142     // window are created enabled and visible by default
 143     m_isShown =
 144     m_isEnabled = true;
 145
 146     // the default event handler is just this window
 147     m_eventHandler = this;
 148
 149 #if wxUSE_VALIDATORS
 150     // no validator
 151     m_windowValidator = (wxValidator *) NULL;
 152 #endif // wxUSE_VALIDATORS
 153
 154     // the colours/fonts are default for now, so leave m_font,
 155     // m_backgroundColour and m_foregroundColour uninitialized and set those
 156     m_hasBgCol =
 157     m_hasFgCol =
 158     m_hasFont = false;
 159     m_inheritBgCol =
 160     m_inheritFgCol =
 161     m_inheritFont = false;
 162
 163     // no style bits
 164     m_exStyle =
 165     m_windowStyle = 0;
 166
 167     m_backgroundStyle = wxBG_STYLE_SYSTEM;
 168
 169 #if wxUSE_CONSTRAINTS
 170     // no constraints whatsoever
 171     m_constraints = (wxLayoutConstraints *) NULL;
 172     m_constraintsInvolvedIn = (wxWindowList *) NULL;
 173 #endif // wxUSE_CONSTRAINTS
 174
 175     m_windowSizer = (wxSizer *) NULL;
 176     m_containingSizer = (wxSizer *) NULL;
 177     m_autoLayout = false;
 178
 179 #if wxUSE_DRAG_AND_DROP
 180     m_dropTarget = (wxDropTarget *)NULL;
 181 #endif // wxUSE_DRAG_AND_DROP
 182
 183 #if wxUSE_TOOLTIPS
 184     m_tooltip = (wxToolTip *)NULL;
 185 #endif // wxUSE_TOOLTIPS
 186
 187 #if wxUSE_CARET
 188     m_caret = (wxCaret *)NULL;
 189 #endif // wxUSE_CARET
 190
 191 #if wxUSE_PALETTE
 192     m_hasCustomPalette = false;
 193 #endif // wxUSE_PALETTE
 194
 195 #if wxUSE_ACCESSIBILITY
 196     m_accessible = NULL;
 197 #endif
 198
 199     m_virtualSize = wxDefaultSize;
 200
 201     m_minVirtualWidth =
 202     m_maxVirtualWidth = wxDefaultCoord;
 203     m_minVirtualHeight =
 204     m_maxVirtualHeight = wxDefaultCoord;
 205
 206     m_windowVariant = wxWINDOW_VARIANT_NORMAL;
 207 #if wxUSE_SYSTEM_OPTIONS
 208     if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) )
 209     {
 210        m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ;
 211     }
 212 #endif
 213
 214     // Whether we're using the current theme for this window (wxGTK only for now)
 215     m_themeEnabled = false;
 216
 217     // VZ: this one shouldn't exist...
 218     m_isBeingDeleted = false;
 219 }
 220
 221 // common part of window creation process
 222 bool wxWindowBase::CreateBase(wxWindowBase *parent,
 223                               wxWindowID id,
 224                               const wxPoint& WXUNUSED(pos),
 225                               const wxSize& WXUNUSED(size),
 226                               long style,
 227                               const wxValidator& wxVALIDATOR_PARAM(validator),
 228                               const wxString& name)
 229 {
 230 #if wxUSE_STATBOX
 231     // wxGTK doesn't allow to create controls with static box as the parent so
 232     // this will result in a crash when the program is ported to wxGTK so warn
 233     // the user about it
 234
 235     // if you get this assert, the correct solution is to create the controls
 236     // as siblings of the static box
 237     wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
 238                   _T("wxStaticBox can't be used as a window parent!") );
 239 #endif // wxUSE_STATBOX
 240
 241     // ids are limited to 16 bits under MSW so if you care about portability,
 242     // it's not a good idea to use ids out of this range (and negative ids are
 243     // reserved for wxWidgets own usage)
 244     wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
 245                   _T("invalid id value") );
 246
 247     // generate a new id if the user doesn't care about it
 248     m_windowId = id == wxID_ANY ? NewControlId() : id;
 249
 250     SetName(name);
 251     SetWindowStyleFlag(style);
 252     SetParent(parent);
 253
 254 #if wxUSE_VALIDATORS
 255     SetValidator(validator);
 256 #endif // wxUSE_VALIDATORS
 257
 258     // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
 259     // have it too - like this it's possible to set it only in the top level
 260     // dialog/frame and all children will inherit it by defult
 261     if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
 262     {
 263         SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
 264     }
 265
 266     return true;
 267 }
 268
 269 // ----------------------------------------------------------------------------
 270 // destruction
 271 // ----------------------------------------------------------------------------
 272
 273 // common clean up
 274 wxWindowBase::~wxWindowBase()
 275 {
 276     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 277
 278     // FIXME if these 2 cases result from programming errors in the user code
 279     //       we should probably assert here instead of silently fixing them
 280
 281     // Just in case the window has been Closed, but we're then deleting
 282     // immediately: don't leave dangling pointers.
 283     wxPendingDelete.DeleteObject(this);
 284
 285     // Just in case we've loaded a top-level window via LoadNativeDialog but
 286     // we weren't a dialog class
 287     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 288
 289     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 290
 291     // reset the dangling pointer our parent window may keep to us
 292     if ( m_parent )
 293     {
 294         m_parent->RemoveChild(this);
 295     }
 296
 297 #if wxUSE_CARET
 298     delete m_caret;
 299 #endif // wxUSE_CARET
 300
 301 #if wxUSE_VALIDATORS
 302     delete m_windowValidator;
 303 #endif // wxUSE_VALIDATORS
 304
 305 #if wxUSE_CONSTRAINTS
 306     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
 307     // at deleted windows as they delete themselves.
 308     DeleteRelatedConstraints();
 309
 310     if ( m_constraints )
 311     {
 312         // This removes any dangling pointers to this window in other windows'
 313         // constraintsInvolvedIn lists.
 314         UnsetConstraints(m_constraints);
 315         delete m_constraints;
 316         m_constraints = NULL;
 317     }
 318 #endif // wxUSE_CONSTRAINTS
 319
 320     if ( m_containingSizer )
 321         m_containingSizer->Detach( (wxWindow*)this );
 322
 323     delete m_windowSizer;
 324
 325 #if wxUSE_DRAG_AND_DROP
 326     delete m_dropTarget;
 327 #endif // wxUSE_DRAG_AND_DROP
 328
 329 #if wxUSE_TOOLTIPS
 330     delete m_tooltip;
 331 #endif // wxUSE_TOOLTIPS
 332
 333 #if wxUSE_ACCESSIBILITY
 334     delete m_accessible;
 335 #endif
 336 }
 337
 338 bool wxWindowBase::Destroy()
 339 {
 340     delete this;
 341
 342     return true;
 343 }
 344
 345 bool wxWindowBase::Close(bool force)
 346 {
 347     wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
 348     event.SetEventObject(this);
 349     event.SetCanVeto(!force);
 350
 351     // return false if window wasn't closed because the application vetoed the
 352     // close event
 353     return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
 354 }
 355
 356 bool wxWindowBase::DestroyChildren()
 357 {
 358     wxWindowList::compatibility_iterator node;
 359     for ( ;; )
 360     {
 361         // we iterate until the list becomes empty
 362         node = GetChildren().GetFirst();
 363         if ( !node )
 364             break;
 365
 366         wxWindow *child = node->GetData();
 367
 368         // note that we really want to call delete and not ->Destroy() here
 369         // because we want to delete the child immediately, before we are
 370         // deleted, and delayed deletion would result in problems as our (top
 371         // level) child could outlive its parent
 372         delete child;
 373
 374         wxASSERT_MSG( !GetChildren().Find(child),
 375                       wxT("child didn't remove itself using RemoveChild()") );
 376     }
 377
 378     return true;
 379 }
 380
 381 // ----------------------------------------------------------------------------
 382 // size/position related methods
 383 // ----------------------------------------------------------------------------
 384
 385 // centre the window with respect to its parent in either (or both) directions
 386 void wxWindowBase::DoCentre(int dir)
 387 {
 388     wxCHECK_RET( !(dir & wxCENTRE_ON_SCREEN) && GetParent(),
 389                  _T("this method only implements centering child windows") );
 390
 391     SetSize(GetRect().CentreIn(GetParent()->GetClientSize(), dir));
 392 }
 393
 394 // fits the window around the children
 395 void wxWindowBase::Fit()
 396 {
 397     if ( !GetChildren().empty() )
 398     {
 399         SetClientSize(GetBestSize());
 400     }
 401     //else: do nothing if we have no children
 402 }
 403
 404 // fits virtual size (ie. scrolled area etc.) around children
 405 void wxWindowBase::FitInside()
 406 {
 407     if ( GetChildren().GetCount() > 0 )
 408     {
 409         SetVirtualSize( GetBestVirtualSize() );
 410     }
 411 }
 412
 413 // On Mac, scrollbars are explicitly children.
 414 #ifdef __WXMAC__
 415 static bool wxHasRealChildren(const wxWindowBase* win)
 416 {
 417     int realChildCount = 0;
 418
 419     for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
 420           node;
 421           node = node->GetNext() )
 422     {
 423         wxWindow *win = node->GetData();
 424         if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
 425             realChildCount ++;
 426     }
 427     return (realChildCount > 0);
 428 }
 429 #endif
 430
 431 void wxWindowBase::InvalidateBestSize()
 432 {
 433     m_bestSizeCache = wxDefaultSize;
 434
 435     // parent's best size calculation may depend on its children's
 436     // as long as child window we are in is not top level window itself
 437     // (because the TLW size is never resized automatically)
 438     // so let's invalidate it as well to be safe:
 439     if (m_parent && !IsTopLevel())
 440         m_parent->InvalidateBestSize();
 441 }
 442
 443 // return the size best suited for the current window
 444 wxSize wxWindowBase::DoGetBestSize() const
 445 {
 446     wxSize best;
 447
 448     if ( m_windowSizer )
 449     {
 450         best = GetWindowSizeForVirtualSize(m_windowSizer->GetMinSize());
 451     }
 452 #if wxUSE_CONSTRAINTS
 453     else if ( m_constraints )
 454     {
 455         wxConstCast(this, wxWindowBase)->SatisfyConstraints();
 456
 457         // our minimal acceptable size is such that all our windows fit inside
 458         int maxX = 0,
 459             maxY = 0;
 460
 461         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 462               node;
 463               node = node->GetNext() )
 464         {
 465             wxLayoutConstraints *c = node->GetData()->GetConstraints();
 466             if ( !c )
 467             {
 468                 // it's not normal that we have an unconstrained child, but
 469                 // what can we do about it?
 470                 continue;
 471             }
 472
 473             int x = c->right.GetValue(),
 474                 y = c->bottom.GetValue();
 475
 476             if ( x > maxX )
 477                 maxX = x;
 478
 479             if ( y > maxY )
 480                 maxY = y;
 481
 482             // TODO: we must calculate the overlaps somehow, otherwise we
 483             //       will never return a size bigger than the current one :-(
 484         }
 485
 486         best = wxSize(maxX, maxY);
 487     }
 488 #endif // wxUSE_CONSTRAINTS
 489     else if ( !GetChildren().empty()
 490 #ifdef __WXMAC__
 491               && wxHasRealChildren(this)
 492 #endif
 493               )
 494     {
 495         // our minimal acceptable size is such that all our visible child
 496         // windows fit inside
 497         int maxX = 0,
 498             maxY = 0;
 499
 500         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 501               node;
 502               node = node->GetNext() )
 503         {
 504             wxWindow *win = node->GetData();
 505             if ( win->IsTopLevel()
 506                     || !win->IsShown()
 507 #if wxUSE_STATUSBAR
 508                         || wxDynamicCast(win, wxStatusBar)
 509 #endif // wxUSE_STATUSBAR
 510                )
 511             {
 512                 // dialogs and frames lie in different top level windows -
 513                 // don't deal with them here; as for the status bars, they
 514                 // don't lie in the client area at all
 515                 continue;
 516             }
 517
 518             int wx, wy, ww, wh;
 519             win->GetPosition(&wx, &wy);
 520
 521             // if the window hadn't been positioned yet, assume that it is in
 522             // the origin
 523             if ( wx == wxDefaultCoord )
 524                 wx = 0;
 525             if ( wy == wxDefaultCoord )
 526                 wy = 0;
 527
 528             win->GetSize(&ww, &wh);
 529             if ( wx + ww > maxX )
 530                 maxX = wx + ww;
 531             if ( wy + wh > maxY )
 532                 maxY = wy + wh;
 533         }
 534
 535         best = wxSize(maxX, maxY);
 536     }
 537     else // ! has children
 538     {
 539         // for a generic window there is no natural best size so, if the
 540         // minimal size is not set, use the current size but take care to
 541         // remember it as minimal size for the next time because our best size
 542         // should be constant: otherwise we could get into a situation when the
 543         // window is initially at some size, then expanded to a larger size and
 544         // then, when the containing window is shrunk back (because our initial
 545         // best size had been used for computing the parent min size), we can't
 546         // be shrunk back any more because our best size is now bigger
 547         wxSize size = GetMinSize();
 548         if ( !size.IsFullySpecified() )
 549         {
 550             size.SetDefaults(GetSize());
 551             wxConstCast(this, wxWindowBase)->SetMinSize(size);
 552         }
 553
 554         // return as-is, unadjusted by the client size difference.
 555         return size;
 556     }
 557
 558     // Add any difference between size and client size
 559     wxSize diff = GetSize() - GetClientSize();
 560     best.x += wxMax(0, diff.x);
 561     best.y += wxMax(0, diff.y);
 562
 563     return best;
 564 }
 565
 566
 567 wxSize wxWindowBase::GetBestFittingSize() const
 568 {
 569     // merge the best size with the min size, giving priority to the min size
 570     wxSize min = GetMinSize();
 571     if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
 572     {
 573         wxSize best = GetBestSize();
 574         if (min.x == wxDefaultCoord) min.x =  best.x;
 575         if (min.y == wxDefaultCoord) min.y =  best.y;
 576     }
 577     return min;
 578 }
 579
 580
 581 void wxWindowBase::SetBestFittingSize(const wxSize& size)
 582 {
 583     // Set the min size to the size passed in.  This will usually either be
 584     // wxDefaultSize or the size passed to this window's ctor/Create function.
 585     SetMinSize(size);
 586
 587     // Merge the size with the best size if needed
 588     wxSize best = GetBestFittingSize();
 589
 590     // If the current size doesn't match then change it
 591     if (GetSize() != best)
 592         SetSize(best);
 593 }
 594
 595
 596 // by default the origin is not shifted
 597 wxPoint wxWindowBase::GetClientAreaOrigin() const
 598 {
 599     return wxPoint(0,0);
 600 }
 601
 602 // set the min/max size of the window
 603 void wxWindowBase::DoSetSizeHints(int minW, int minH,
 604                                   int maxW, int maxH,
 605                                   int WXUNUSED(incW), int WXUNUSED(incH))
 606 {
 607     // setting min width greater than max width leads to infinite loops under
 608     // X11 and generally doesn't make any sense, so don't allow it
 609     wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
 610                     (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
 611                  _T("min width/height must be less than max width/height!") );
 612
 613     m_minWidth = minW;
 614     m_maxWidth = maxW;
 615     m_minHeight = minH;
 616     m_maxHeight = maxH;
 617 }
 618
 619 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 620 {
 621     if ( m_windowVariant != variant )
 622     {
 623         m_windowVariant = variant;
 624
 625         DoSetWindowVariant(variant);
 626     }
 627 }
 628
 629 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
 630 {
 631     // adjust the font height to correspond to our new variant (notice that
 632     // we're only called if something really changed)
 633     wxFont font = GetFont();
 634     int size = font.GetPointSize();
 635     switch ( variant )
 636     {
 637         case wxWINDOW_VARIANT_NORMAL:
 638             break;
 639
 640         case wxWINDOW_VARIANT_SMALL:
 641             size *= 3;
 642             size /= 4;
 643             break;
 644
 645         case wxWINDOW_VARIANT_MINI:
 646             size *= 2;
 647             size /= 3;
 648             break;
 649
 650         case wxWINDOW_VARIANT_LARGE:
 651             size *= 5;
 652             size /= 4;
 653             break;
 654
 655         default:
 656             wxFAIL_MSG(_T("unexpected window variant"));
 657             break;
 658     }
 659
 660     font.SetPointSize(size);
 661     SetFont(font);
 662 }
 663
 664 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
 665                                         int maxW, int maxH )
 666 {
 667     m_minVirtualWidth = minW;
 668     m_maxVirtualWidth = maxW;
 669     m_minVirtualHeight = minH;
 670     m_maxVirtualHeight = maxH;
 671 }
 672
 673 void wxWindowBase::DoSetVirtualSize( int x, int y )
 674 {
 675     if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
 676         x = m_minVirtualWidth;
 677     if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
 678         x = m_maxVirtualWidth;
 679     if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
 680         y = m_minVirtualHeight;
 681     if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
 682         y = m_maxVirtualHeight;
 683
 684     m_virtualSize = wxSize(x, y);
 685 }
 686
 687 wxSize wxWindowBase::DoGetVirtualSize() const
 688 {
 689     // we should use the entire client area so if it is greater than our
 690     // virtual size, expand it to fit (otherwise if the window is big enough we
 691     // wouldn't be using parts of it)
 692     wxSize size = GetClientSize();
 693     if ( m_virtualSize.x > size.x )
 694         size.x = m_virtualSize.x;
 695
 696     if ( m_virtualSize.y >= size.y )
 697         size.y = m_virtualSize.y;
 698
 699     return size;
 700 }
 701
 702 void wxWindowBase::DoGetScreenPosition(int *x, int *y) const
 703 {
 704     // screen position is the same as (0, 0) in client coords for non TLWs (and
 705     // TLWs override this method)
 706     if ( x )
 707         *x = 0;
 708     if ( y )
 709         *y = 0;
 710
 711     ClientToScreen(x, y);
 712 }
 713
 714 // ----------------------------------------------------------------------------
 715 // show/hide/enable/disable the window
 716 // ----------------------------------------------------------------------------
 717
 718 bool wxWindowBase::Show(bool show)
 719 {
 720     if ( show != m_isShown )
 721     {
 722         m_isShown = show;
 723
 724         return true;
 725     }
 726     else
 727     {
 728         return false;
 729     }
 730 }
 731
 732 bool wxWindowBase::Enable(bool enable)
 733 {
 734     if ( enable != m_isEnabled )
 735     {
 736         m_isEnabled = enable;
 737
 738         return true;
 739     }
 740     else
 741     {
 742         return false;
 743     }
 744 }
 745 // ----------------------------------------------------------------------------
 746 // RTTI
 747 // ----------------------------------------------------------------------------
 748
 749 bool wxWindowBase::IsTopLevel() const
 750 {
 751     return false;
 752 }
 753
 754 // ----------------------------------------------------------------------------
 755 // reparenting the window
 756 // ----------------------------------------------------------------------------
 757
 758 void wxWindowBase::AddChild(wxWindowBase *child)
 759 {
 760     wxCHECK_RET( child, wxT("can't add a NULL child") );
 761
 762     // this should never happen and it will lead to a crash later if it does
 763     // because RemoveChild() will remove only one node from the children list
 764     // and the other(s) one(s) will be left with dangling pointers in them
 765     wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
 766
 767     GetChildren().Append((wxWindow*)child);
 768     child->SetParent(this);
 769 }
 770
 771 void wxWindowBase::RemoveChild(wxWindowBase *child)
 772 {
 773     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 774
 775     GetChildren().DeleteObject((wxWindow *)child);
 776     child->SetParent(NULL);
 777 }
 778
 779 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 780 {
 781     wxWindow *oldParent = GetParent();
 782     if ( newParent == oldParent )
 783     {
 784         // nothing done
 785         return false;
 786     }
 787
 788     // unlink this window from the existing parent.
 789     if ( oldParent )
 790     {
 791         oldParent->RemoveChild(this);
 792     }
 793     else
 794     {
 795         wxTopLevelWindows.DeleteObject((wxWindow *)this);
 796     }
 797
 798     // add it to the new one
 799     if ( newParent )
 800     {
 801         newParent->AddChild(this);
 802     }
 803     else
 804     {
 805         wxTopLevelWindows.Append((wxWindow *)this);
 806     }
 807
 808     return true;
 809 }
 810
 811 // ----------------------------------------------------------------------------
 812 // event handler stuff
 813 // ----------------------------------------------------------------------------
 814
 815 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
 816 {
 817     wxEvtHandler *handlerOld = GetEventHandler();
 818
 819     handler->SetNextHandler(handlerOld);
 820
 821     if ( handlerOld )
 822         GetEventHandler()->SetPreviousHandler(handler);
 823
 824     SetEventHandler(handler);
 825 }
 826
 827 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 828 {
 829     wxEvtHandler *handlerA = GetEventHandler();
 830     if ( handlerA )
 831     {
 832         wxEvtHandler *handlerB = handlerA->GetNextHandler();
 833         handlerA->SetNextHandler((wxEvtHandler *)NULL);
 834
 835         if ( handlerB )
 836             handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
 837         SetEventHandler(handlerB);
 838
 839         if ( deleteHandler )
 840         {
 841             delete handlerA;
 842             handlerA = (wxEvtHandler *)NULL;
 843         }
 844     }
 845
 846     return handlerA;
 847 }
 848
 849 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
 850 {
 851     wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
 852
 853     wxEvtHandler *handlerPrev = NULL,
 854                  *handlerCur = GetEventHandler();
 855     while ( handlerCur )
 856     {
 857         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 858
 859         if ( handlerCur == handler )
 860         {
 861             if ( handlerPrev )
 862             {
 863                 handlerPrev->SetNextHandler(handlerNext);
 864             }
 865             else
 866             {
 867                 SetEventHandler(handlerNext);
 868             }
 869
 870             if ( handlerNext )
 871             {
 872                 handlerNext->SetPreviousHandler ( handlerPrev );
 873             }
 874
 875             handler->SetNextHandler(NULL);
 876             handler->SetPreviousHandler(NULL);
 877
 878             return true;
 879         }
 880
 881         handlerPrev = handlerCur;
 882         handlerCur = handlerNext;
 883     }
 884
 885     wxFAIL_MSG( _T("where has the event handler gone?") );
 886
 887     return false;
 888 }
 889
 890 // ----------------------------------------------------------------------------
 891 // colours, fonts &c
 892 // ----------------------------------------------------------------------------
 893
 894 void wxWindowBase::InheritAttributes()
 895 {
 896     const wxWindowBase * const parent = GetParent();
 897     if ( !parent )
 898         return;
 899
 900     // we only inherit attributes which had been explicitly set for the parent
 901     // which ensures that this only happens if the user really wants it and
 902     // not by default which wouldn't make any sense in modern GUIs where the
 903     // controls don't all use the same fonts (nor colours)
 904     if ( parent->m_inheritFont && !m_hasFont )
 905         SetFont(parent->GetFont());
 906
 907     // in addition, there is a possibility to explicitly forbid inheriting
 908     // colours at each class level by overriding ShouldInheritColours()
 909     if ( ShouldInheritColours() )
 910     {
 911         if ( parent->m_inheritFgCol && !m_hasFgCol )
 912             SetForegroundColour(parent->GetForegroundColour());
 913
 914         // inheriting (solid) background colour is wrong as it totally breaks
 915         // any kind of themed backgrounds
 916         //
 917         // instead, the controls should use the same background as their parent
 918         // (ideally by not drawing it at all)
 919 #if 0
 920         if ( parent->m_inheritBgCol && !m_hasBgCol )
 921             SetBackgroundColour(parent->GetBackgroundColour());
 922 #endif // 0
 923     }
 924 }
 925
 926 /* static */ wxVisualAttributes
 927 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 928 {
 929     // it is important to return valid values for all attributes from here,
 930     // GetXXX() below rely on this
 931     wxVisualAttributes attrs;
 932     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 933     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
 934
 935     // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
 936     // the usual background colour than wxSYS_COLOUR_BTNFACE.
 937     // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
 938     // colour on other platforms.
 939
 940 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
 941     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
 942 #else
 943     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
 944 #endif
 945     return attrs;
 946 }
 947
 948 wxColour wxWindowBase::GetBackgroundColour() const
 949 {
 950     if ( !m_backgroundColour.Ok() )
 951     {
 952         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
 953
 954         // get our default background colour
 955         wxColour colBg = GetDefaultAttributes().colBg;
 956
 957         // we must return some valid colour to avoid redoing this every time
 958         // and also to avoid surprizing the applications written for older
 959         // wxWidgets versions where GetBackgroundColour() always returned
 960         // something -- so give them something even if it doesn't make sense
 961         // for this window (e.g. it has a themed background)
 962         if ( !colBg.Ok() )
 963             colBg = GetClassDefaultAttributes().colBg;
 964
 965         return colBg;
 966     }
 967     else
 968         return m_backgroundColour;
 969 }
 970
 971 wxColour wxWindowBase::GetForegroundColour() const
 972 {
 973     // logic is the same as above
 974     if ( !m_hasFgCol && !m_foregroundColour.Ok() )
 975     {
 976         wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
 977
 978         wxColour colFg = GetDefaultAttributes().colFg;
 979
 980         if ( !colFg.Ok() )
 981             colFg = GetClassDefaultAttributes().colFg;
 982
 983         return colFg;
 984     }
 985     else
 986         return m_foregroundColour;
 987 }
 988
 989 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
 990 {
 991     if ( colour == m_backgroundColour )
 992         return false;
 993
 994     m_hasBgCol = colour.Ok();
 995     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
 996         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
 997
 998     m_inheritBgCol = m_hasBgCol;
 999     m_backgroundColour = colour;
1000     SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1001     return true;
1002 }
1003
1004 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1005 {
1006     if (colour == m_foregroundColour )
1007         return false;
1008
1009     m_hasFgCol = colour.Ok();
1010     m_inheritFgCol = m_hasFgCol;
1011     m_foregroundColour = colour;
1012     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1013     return true;
1014 }
1015
1016 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1017 {
1018     // setting an invalid cursor is ok, it means that we don't have any special
1019     // cursor
1020     if ( m_cursor == cursor )
1021     {
1022         // no change
1023         return false;
1024     }
1025
1026     m_cursor = cursor;
1027
1028     return true;
1029 }
1030
1031 wxFont wxWindowBase::GetFont() const
1032 {
1033     // logic is the same as in GetBackgroundColour()
1034     if ( !m_font.Ok() )
1035     {
1036         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1037
1038         wxFont font = GetDefaultAttributes().font;
1039         if ( !font.Ok() )
1040             font = GetClassDefaultAttributes().font;
1041
1042         return font;
1043     }
1044     else
1045         return m_font;
1046 }
1047
1048 bool wxWindowBase::SetFont(const wxFont& font)
1049 {
1050     if ( font == m_font )
1051     {
1052         // no change
1053         return false;
1054     }
1055
1056     m_font = font;
1057     m_hasFont = font.Ok();
1058     m_inheritFont = m_hasFont;
1059
1060     InvalidateBestSize();
1061
1062     return true;
1063 }
1064
1065 #if wxUSE_PALETTE
1066
1067 void wxWindowBase::SetPalette(const wxPalette& pal)
1068 {
1069     m_hasCustomPalette = true;
1070     m_palette = pal;
1071
1072     // VZ: can anyone explain me what do we do here?
1073     wxWindowDC d((wxWindow *) this);
1074     d.SetPalette(pal);
1075 }
1076
1077 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1078 {
1079     wxWindow *win = (wxWindow *)this;
1080     while ( win && !win->HasCustomPalette() )
1081     {
1082         win = win->GetParent();
1083     }
1084
1085     return win;
1086 }
1087
1088 #endif // wxUSE_PALETTE
1089
1090 #if wxUSE_CARET
1091 void wxWindowBase::SetCaret(wxCaret *caret)
1092 {
1093     if ( m_caret )
1094     {
1095         delete m_caret;
1096     }
1097
1098     m_caret = caret;
1099
1100     if ( m_caret )
1101     {
1102         wxASSERT_MSG( m_caret->GetWindow() == this,
1103                       wxT("caret should be created associated to this window") );
1104     }
1105 }
1106 #endif // wxUSE_CARET
1107
1108 #if wxUSE_VALIDATORS
1109 // ----------------------------------------------------------------------------
1110 // validators
1111 // ----------------------------------------------------------------------------
1112
1113 void wxWindowBase::SetValidator(const wxValidator& validator)
1114 {
1115     if ( m_windowValidator )
1116         delete m_windowValidator;
1117
1118     m_windowValidator = (wxValidator *)validator.Clone();
1119
1120     if ( m_windowValidator )
1121         m_windowValidator->SetWindow(this);
1122 }
1123 #endif // wxUSE_VALIDATORS
1124
1125 // ----------------------------------------------------------------------------
1126 // update region stuff
1127 // ----------------------------------------------------------------------------
1128
1129 wxRect wxWindowBase::GetUpdateClientRect() const
1130 {
1131     wxRegion rgnUpdate = GetUpdateRegion();
1132     rgnUpdate.Intersect(GetClientRect());
1133     wxRect rectUpdate = rgnUpdate.GetBox();
1134     wxPoint ptOrigin = GetClientAreaOrigin();
1135     rectUpdate.x -= ptOrigin.x;
1136     rectUpdate.y -= ptOrigin.y;
1137
1138     return rectUpdate;
1139 }
1140
1141 bool wxWindowBase::IsExposed(int x, int y) const
1142 {
1143     return m_updateRegion.Contains(x, y) != wxOutRegion;
1144 }
1145
1146 bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
1147 {
1148     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1149 }
1150
1151 void wxWindowBase::ClearBackground()
1152 {
1153     // wxGTK uses its own version, no need to add never used code
1154 #ifndef __WXGTK__
1155     wxClientDC dc((wxWindow *)this);
1156     wxBrush brush(GetBackgroundColour(), wxSOLID);
1157     dc.SetBackground(brush);
1158     dc.Clear();
1159 #endif // __WXGTK__
1160 }
1161
1162 // ----------------------------------------------------------------------------
1163 // find child window by id or name
1164 // ----------------------------------------------------------------------------
1165
1166 wxWindow *wxWindowBase::FindWindow(long id) const
1167 {
1168     if ( id == m_windowId )
1169         return (wxWindow *)this;
1170
1171     wxWindowBase *res = (wxWindow *)NULL;
1172     wxWindowList::compatibility_iterator node;
1173     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1174     {
1175         wxWindowBase *child = node->GetData();
1176         res = child->FindWindow( id );
1177     }
1178
1179     return (wxWindow *)res;
1180 }
1181
1182 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1183 {
1184     if ( name == m_windowName )
1185         return (wxWindow *)this;
1186
1187     wxWindowBase *res = (wxWindow *)NULL;
1188     wxWindowList::compatibility_iterator node;
1189     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1190     {
1191         wxWindow *child = node->GetData();
1192         res = child->FindWindow(name);
1193     }
1194
1195     return (wxWindow *)res;
1196 }
1197
1198
1199 // find any window by id or name or label: If parent is non-NULL, look through
1200 // children for a label or title matching the specified string. If NULL, look
1201 // through all top-level windows.
1202 //
1203 // to avoid duplicating code we reuse the same helper function but with
1204 // different comparators
1205
1206 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1207                                 const wxString& label, long id);
1208
1209 static
1210 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1211                            long WXUNUSED(id))
1212 {
1213     return win->GetLabel() == label;
1214 }
1215
1216 static
1217 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1218                           long WXUNUSED(id))
1219 {
1220     return win->GetName() == label;
1221 }
1222
1223 static
1224 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1225                         long id)
1226 {
1227     return win->GetId() == id;
1228 }
1229
1230 // recursive helper for the FindWindowByXXX() functions
1231 static
1232 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1233                                   const wxString& label,
1234                                   long id,
1235                                   wxFindWindowCmp cmp)
1236 {
1237     if ( parent )
1238     {
1239         // see if this is the one we're looking for
1240         if ( (*cmp)(parent, label, id) )
1241             return (wxWindow *)parent;
1242
1243         // It wasn't, so check all its children
1244         for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1245               node;
1246               node = node->GetNext() )
1247         {
1248             // recursively check each child
1249             wxWindow *win = (wxWindow *)node->GetData();
1250             wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1251             if (retwin)
1252                 return retwin;
1253         }
1254     }
1255
1256     // Not found
1257     return NULL;
1258 }
1259
1260 // helper for FindWindowByXXX()
1261 static
1262 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1263                              const wxString& label,
1264                              long id,
1265                              wxFindWindowCmp cmp)
1266 {
1267     if ( parent )
1268     {
1269         // just check parent and all its children
1270         return wxFindWindowRecursively(parent, label, id, cmp);
1271     }
1272
1273     // start at very top of wx's windows
1274     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1275           node;
1276           node = node->GetNext() )
1277     {
1278         // recursively check each window & its children
1279         wxWindow *win = node->GetData();
1280         wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1281         if (retwin)
1282             return retwin;
1283     }
1284
1285     return NULL;
1286 }
1287
1288 /* static */
1289 wxWindow *
1290 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1291 {
1292     return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1293 }
1294
1295 /* static */
1296 wxWindow *
1297 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1298 {
1299     wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1300
1301     if ( !win )
1302     {
1303         // fall back to the label
1304         win = FindWindowByLabel(title, parent);
1305     }
1306
1307     return win;
1308 }
1309
1310 /* static */
1311 wxWindow *
1312 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1313 {
1314     return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1315 }
1316
1317 // ----------------------------------------------------------------------------
1318 // dialog oriented functions
1319 // ----------------------------------------------------------------------------
1320
1321 void wxWindowBase::MakeModal(bool modal)
1322 {
1323     // Disable all other windows
1324     if ( IsTopLevel() )
1325     {
1326         wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1327         while (node)
1328         {
1329             wxWindow *win = node->GetData();
1330             if (win != this)
1331                 win->Enable(!modal);
1332
1333             node = node->GetNext();
1334         }
1335     }
1336 }
1337
1338 bool wxWindowBase::Validate()
1339 {
1340 #if wxUSE_VALIDATORS
1341     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1342
1343     wxWindowList::compatibility_iterator node;
1344     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1345     {
1346         wxWindowBase *child = node->GetData();
1347         wxValidator *validator = child->GetValidator();
1348         if ( validator && !validator->Validate((wxWindow *)this) )
1349         {
1350             return false;
1351         }
1352
1353         if ( recurse && !child->Validate() )
1354         {
1355             return false;
1356         }
1357     }
1358 #endif // wxUSE_VALIDATORS
1359
1360     return true;
1361 }
1362
1363 bool wxWindowBase::TransferDataToWindow()
1364 {
1365 #if wxUSE_VALIDATORS
1366     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1367
1368     wxWindowList::compatibility_iterator node;
1369     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1370     {
1371         wxWindowBase *child = node->GetData();
1372         wxValidator *validator = child->GetValidator();
1373         if ( validator && !validator->TransferToWindow() )
1374         {
1375             wxLogWarning(_("Could not transfer data to window"));
1376 #if wxUSE_LOG
1377             wxLog::FlushActive();
1378 #endif // wxUSE_LOG
1379
1380             return false;
1381         }
1382
1383         if ( recurse )
1384         {
1385             if ( !child->TransferDataToWindow() )
1386             {
1387                 // warning already given
1388                 return false;
1389             }
1390         }
1391     }
1392 #endif // wxUSE_VALIDATORS
1393
1394     return true;
1395 }
1396
1397 bool wxWindowBase::TransferDataFromWindow()
1398 {
1399 #if wxUSE_VALIDATORS
1400     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1401
1402     wxWindowList::compatibility_iterator node;
1403     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1404     {
1405         wxWindow *child = node->GetData();
1406         wxValidator *validator = child->GetValidator();
1407         if ( validator && !validator->TransferFromWindow() )
1408         {
1409             // nop warning here because the application is supposed to give
1410             // one itself - we don't know here what might have gone wrongly
1411
1412             return false;
1413         }
1414
1415         if ( recurse )
1416         {
1417             if ( !child->TransferDataFromWindow() )
1418             {
1419                 // warning already given
1420                 return false;
1421             }
1422         }
1423     }
1424 #endif // wxUSE_VALIDATORS
1425
1426     return true;
1427 }
1428
1429 void wxWindowBase::InitDialog()
1430 {
1431     wxInitDialogEvent event(GetId());
1432     event.SetEventObject( this );
1433     GetEventHandler()->ProcessEvent(event);
1434 }
1435
1436 // ----------------------------------------------------------------------------
1437 // context-sensitive help support
1438 // ----------------------------------------------------------------------------
1439
1440 #if wxUSE_HELP
1441
1442 // associate this help text with this window
1443 void wxWindowBase::SetHelpText(const wxString& text)
1444 {
1445     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1446     if ( helpProvider )
1447     {
1448         helpProvider->AddHelp(this, text);
1449     }
1450 }
1451
1452 // associate this help text with all windows with the same id as this
1453 // one
1454 void wxWindowBase::SetHelpTextForId(const wxString& text)
1455 {
1456     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1457     if ( helpProvider )
1458     {
1459         helpProvider->AddHelp(GetId(), text);
1460     }
1461 }
1462
1463 // get the help string associated with this window (may be empty)
1464 // default implementation forwards calls to the help provider
1465 wxString
1466 wxWindowBase::GetHelpTextAtPoint(const wxPoint & WXUNUSED(pt),
1467                                  wxHelpEvent::Origin WXUNUSED(origin)) const
1468 {
1469     wxString text;
1470     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1471     if ( helpProvider )
1472     {
1473         text = helpProvider->GetHelp(this);
1474     }
1475
1476     return text;
1477 }
1478
1479 // show help for this window
1480 void wxWindowBase::OnHelp(wxHelpEvent& event)
1481 {
1482     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1483     if ( helpProvider )
1484     {
1485         if ( helpProvider->ShowHelpAtPoint(this, event.GetPosition(), event.GetOrigin()) )
1486         {
1487             // skip the event.Skip() below
1488             return;
1489         }
1490     }
1491
1492     event.Skip();
1493 }
1494
1495 #endif // wxUSE_HELP
1496
1497 // ----------------------------------------------------------------------------
1498 // tooltipsroot.Replace("\\", "/");
1499 // ----------------------------------------------------------------------------
1500
1501 #if wxUSE_TOOLTIPS
1502
1503 void wxWindowBase::SetToolTip( const wxString &tip )
1504 {
1505     // don't create the new tooltip if we already have one
1506     if ( m_tooltip )
1507     {
1508         m_tooltip->SetTip( tip );
1509     }
1510     else
1511     {
1512         SetToolTip( new wxToolTip( tip ) );
1513     }
1514
1515     // setting empty tooltip text does not remove the tooltip any more - use
1516     // SetToolTip((wxToolTip *)NULL) for this
1517 }
1518
1519 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1520 {
1521     if ( m_tooltip != tooltip )
1522     {
1523         if ( m_tooltip )
1524             delete m_tooltip;
1525
1526         m_tooltip = tooltip;
1527     }
1528 }
1529
1530 #endif // wxUSE_TOOLTIPS
1531
1532 // ----------------------------------------------------------------------------
1533 // constraints and sizers
1534 // ----------------------------------------------------------------------------
1535
1536 #if wxUSE_CONSTRAINTS
1537
1538 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1539 {
1540     if ( m_constraints )
1541     {
1542         UnsetConstraints(m_constraints);
1543         delete m_constraints;
1544     }
1545     m_constraints = constraints;
1546     if ( m_constraints )
1547     {
1548         // Make sure other windows know they're part of a 'meaningful relationship'
1549         if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1550             m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1551         if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1552             m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1553         if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1554             m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1555         if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1556             m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1557         if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1558             m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1559         if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1560             m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1561         if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1562             m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1563         if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1564             m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1565     }
1566 }
1567
1568 // This removes any dangling pointers to this window in other windows'
1569 // constraintsInvolvedIn lists.
1570 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1571 {
1572     if ( c )
1573     {
1574         if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1575             c->left.GetOtherWindow()->RemoveConstraintReference(this);
1576         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1577             c->top.GetOtherWindow()->RemoveConstraintReference(this);
1578         if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1579             c->right.GetOtherWindow()->RemoveConstraintReference(this);
1580         if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1581             c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1582         if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1583             c->width.GetOtherWindow()->RemoveConstraintReference(this);
1584         if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1585             c->height.GetOtherWindow()->RemoveConstraintReference(this);
1586         if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1587             c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1588         if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1589             c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1590     }
1591 }
1592
1593 // Back-pointer to other windows we're involved with, so if we delete this
1594 // window, we must delete any constraints we're involved with.
1595 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1596 {
1597     if ( !m_constraintsInvolvedIn )
1598         m_constraintsInvolvedIn = new wxWindowList;
1599     if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1600         m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1601 }
1602
1603 // REMOVE back-pointer to other windows we're involved with.
1604 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1605 {
1606     if ( m_constraintsInvolvedIn )
1607         m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1608 }
1609
1610 // Reset any constraints that mention this window
1611 void wxWindowBase::DeleteRelatedConstraints()
1612 {
1613     if ( m_constraintsInvolvedIn )
1614     {
1615         wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1616         while (node)
1617         {
1618             wxWindow *win = node->GetData();
1619             wxLayoutConstraints *constr = win->GetConstraints();
1620
1621             // Reset any constraints involving this window
1622             if ( constr )
1623             {
1624                 constr->left.ResetIfWin(this);
1625                 constr->top.ResetIfWin(this);
1626                 constr->right.ResetIfWin(this);
1627                 constr->bottom.ResetIfWin(this);
1628                 constr->width.ResetIfWin(this);
1629                 constr->height.ResetIfWin(this);
1630                 constr->centreX.ResetIfWin(this);
1631                 constr->centreY.ResetIfWin(this);
1632             }
1633
1634             wxWindowList::compatibility_iterator next = node->GetNext();
1635             m_constraintsInvolvedIn->Erase(node);
1636             node = next;
1637         }
1638
1639         delete m_constraintsInvolvedIn;
1640         m_constraintsInvolvedIn = (wxWindowList *) NULL;
1641     }
1642 }
1643
1644 #endif // wxUSE_CONSTRAINTS
1645
1646 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1647 {
1648     if ( sizer == m_windowSizer)
1649         return;
1650
1651     if ( deleteOld )
1652         delete m_windowSizer;
1653
1654     m_windowSizer = sizer;
1655
1656     SetAutoLayout( sizer != NULL );
1657 }
1658
1659 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1660 {
1661     SetSizer( sizer, deleteOld );
1662     sizer->SetSizeHints( (wxWindow*) this );
1663 }
1664
1665
1666 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1667 {
1668     // adding a window to a sizer twice is going to result in fatal and
1669     // hard to debug problems later because when deleting the second
1670     // associated wxSizerItem we're going to dereference a dangling
1671     // pointer; so try to detect this as early as possible
1672     wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1673                   _T("Adding a window to the same sizer twice?") );
1674
1675     m_containingSizer = sizer;
1676 }
1677
1678 #if wxUSE_CONSTRAINTS
1679
1680 void wxWindowBase::SatisfyConstraints()
1681 {
1682     wxLayoutConstraints *constr = GetConstraints();
1683     bool wasOk = constr && constr->AreSatisfied();
1684
1685     ResetConstraints();   // Mark all constraints as unevaluated
1686
1687     int noChanges = 1;
1688
1689     // if we're a top level panel (i.e. our parent is frame/dialog), our
1690     // own constraints will never be satisfied any more unless we do it
1691     // here
1692     if ( wasOk )
1693     {
1694         while ( noChanges > 0 )
1695         {
1696             LayoutPhase1(&noChanges);
1697         }
1698     }
1699
1700     LayoutPhase2(&noChanges);
1701 }
1702
1703 #endif // wxUSE_CONSTRAINTS
1704
1705 bool wxWindowBase::Layout()
1706 {
1707     // If there is a sizer, use it instead of the constraints
1708     if ( GetSizer() )
1709     {
1710         int w = 0, h = 0;
1711         GetVirtualSize(&w, &h);
1712         GetSizer()->SetDimension( 0, 0, w, h );
1713     }
1714 #if wxUSE_CONSTRAINTS
1715     else
1716     {
1717         SatisfyConstraints(); // Find the right constraints values
1718         SetConstraintSizes(); // Recursively set the real window sizes
1719     }
1720 #endif
1721
1722     return true;
1723 }
1724
1725 #if wxUSE_CONSTRAINTS
1726
1727 // first phase of the constraints evaluation: set our own constraints
1728 bool wxWindowBase::LayoutPhase1(int *noChanges)
1729 {
1730     wxLayoutConstraints *constr = GetConstraints();
1731
1732     return !constr || constr->SatisfyConstraints(this, noChanges);
1733 }
1734
1735 // second phase: set the constraints for our children
1736 bool wxWindowBase::LayoutPhase2(int *noChanges)
1737 {
1738     *noChanges = 0;
1739
1740     // Layout children
1741     DoPhase(1);
1742
1743     // Layout grand children
1744     DoPhase(2);
1745
1746     return true;
1747 }
1748
1749 // Do a phase of evaluating child constraints
1750 bool wxWindowBase::DoPhase(int phase)
1751 {
1752     // the list containing the children for which the constraints are already
1753     // set correctly
1754     wxWindowList succeeded;
1755
1756     // the max number of iterations we loop before concluding that we can't set
1757     // the constraints
1758     static const int maxIterations = 500;
1759
1760     for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1761     {
1762         int noChanges = 0;
1763
1764         // loop over all children setting their constraints
1765         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1766               node;
1767               node = node->GetNext() )
1768         {
1769             wxWindow *child = node->GetData();
1770             if ( child->IsTopLevel() )
1771             {
1772                 // top level children are not inside our client area
1773                 continue;
1774             }
1775
1776             if ( !child->GetConstraints() || succeeded.Find(child) )
1777             {
1778                 // this one is either already ok or nothing we can do about it
1779                 continue;
1780             }
1781
1782             int tempNoChanges = 0;
1783             bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1784                                       : child->LayoutPhase2(&tempNoChanges);
1785             noChanges += tempNoChanges;
1786
1787             if ( success )
1788             {
1789                 succeeded.Append(child);
1790             }
1791         }
1792
1793         if ( !noChanges )
1794         {
1795             // constraints are set
1796             break;
1797         }
1798     }
1799
1800     return true;
1801 }
1802
1803 void wxWindowBase::ResetConstraints()
1804 {
1805     wxLayoutConstraints *constr = GetConstraints();
1806     if ( constr )
1807     {
1808         constr->left.SetDone(false);
1809         constr->top.SetDone(false);
1810         constr->right.SetDone(false);
1811         constr->bottom.SetDone(false);
1812         constr->width.SetDone(false);
1813         constr->height.SetDone(false);
1814         constr->centreX.SetDone(false);
1815         constr->centreY.SetDone(false);
1816     }
1817
1818     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1819     while (node)
1820     {
1821         wxWindow *win = node->GetData();
1822         if ( !win->IsTopLevel() )
1823             win->ResetConstraints();
1824         node = node->GetNext();
1825     }
1826 }
1827
1828 // Need to distinguish between setting the 'fake' size for windows and sizers,
1829 // and setting the real values.
1830 void wxWindowBase::SetConstraintSizes(bool recurse)
1831 {
1832     wxLayoutConstraints *constr = GetConstraints();
1833     if ( constr && constr->AreSatisfied() )
1834     {
1835         int x = constr->left.GetValue();
1836         int y = constr->top.GetValue();
1837         int w = constr->width.GetValue();
1838         int h = constr->height.GetValue();
1839
1840         if ( (constr->width.GetRelationship() != wxAsIs ) ||
1841              (constr->height.GetRelationship() != wxAsIs) )
1842         {
1843             SetSize(x, y, w, h);
1844         }
1845         else
1846         {
1847             // If we don't want to resize this window, just move it...
1848             Move(x, y);
1849         }
1850     }
1851     else if ( constr )
1852     {
1853         wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1854                    GetClassInfo()->GetClassName(),
1855                    GetName().c_str());
1856     }
1857
1858     if ( recurse )
1859     {
1860         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1861         while (node)
1862         {
1863             wxWindow *win = node->GetData();
1864             if ( !win->IsTopLevel() && win->GetConstraints() )
1865                 win->SetConstraintSizes();
1866             node = node->GetNext();
1867         }
1868     }
1869 }
1870
1871 // Only set the size/position of the constraint (if any)
1872 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1873 {
1874     wxLayoutConstraints *constr = GetConstraints();
1875     if ( constr )
1876     {
1877         if ( x != wxDefaultCoord )
1878         {
1879             constr->left.SetValue(x);
1880             constr->left.SetDone(true);
1881         }
1882         if ( y != wxDefaultCoord )
1883         {
1884             constr->top.SetValue(y);
1885             constr->top.SetDone(true);
1886         }
1887         if ( w != wxDefaultCoord )
1888         {
1889             constr->width.SetValue(w);
1890             constr->width.SetDone(true);
1891         }
1892         if ( h != wxDefaultCoord )
1893         {
1894             constr->height.SetValue(h);
1895             constr->height.SetDone(true);
1896         }
1897     }
1898 }
1899
1900 void wxWindowBase::MoveConstraint(int x, int y)
1901 {
1902     wxLayoutConstraints *constr = GetConstraints();
1903     if ( constr )
1904     {
1905         if ( x != wxDefaultCoord )
1906         {
1907             constr->left.SetValue(x);
1908             constr->left.SetDone(true);
1909         }
1910         if ( y != wxDefaultCoord )
1911         {
1912             constr->top.SetValue(y);
1913             constr->top.SetDone(true);
1914         }
1915     }
1916 }
1917
1918 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
1919 {
1920     wxLayoutConstraints *constr = GetConstraints();
1921     if ( constr )
1922     {
1923         *w = constr->width.GetValue();
1924         *h = constr->height.GetValue();
1925     }
1926     else
1927         GetSize(w, h);
1928 }
1929
1930 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
1931 {
1932     wxLayoutConstraints *constr = GetConstraints();
1933     if ( constr )
1934     {
1935         *w = constr->width.GetValue();
1936         *h = constr->height.GetValue();
1937     }
1938     else
1939         GetClientSize(w, h);
1940 }
1941
1942 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
1943 {
1944     wxLayoutConstraints *constr = GetConstraints();
1945     if ( constr )
1946     {
1947         *x = constr->left.GetValue();
1948         *y = constr->top.GetValue();
1949     }
1950     else
1951         GetPosition(x, y);
1952 }
1953
1954 #endif // wxUSE_CONSTRAINTS
1955
1956 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
1957 {
1958     // don't do it for the dialogs/frames - they float independently of their
1959     // parent
1960     if ( !IsTopLevel() )
1961     {
1962         wxWindow *parent = GetParent();
1963         if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
1964         {
1965             wxPoint pt(parent->GetClientAreaOrigin());
1966             x += pt.x;
1967             y += pt.y;
1968         }
1969     }
1970 }
1971
1972 // ----------------------------------------------------------------------------
1973 // do Update UI processing for child controls
1974 // ----------------------------------------------------------------------------
1975
1976 void wxWindowBase::UpdateWindowUI(long flags)
1977 {
1978     wxUpdateUIEvent event(GetId());
1979     event.SetEventObject(this);
1980
1981     if ( GetEventHandler()->ProcessEvent(event) )
1982     {
1983         DoUpdateWindowUI(event);
1984     }
1985
1986     if (flags & wxUPDATE_UI_RECURSE)
1987     {
1988         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1989         while (node)
1990         {
1991             wxWindow* child = (wxWindow*) node->GetData();
1992             child->UpdateWindowUI(flags);
1993             node = node->GetNext();
1994         }
1995     }
1996 }
1997
1998 // do the window-specific processing after processing the update event
1999 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2000 {
2001     if ( event.GetSetEnabled() )
2002         Enable(event.GetEnabled());
2003
2004     if ( event.GetSetShown() )
2005         Show(event.GetShown());
2006 }
2007
2008 #if 0
2009 // call internal idle recursively
2010 // may be obsolete (wait until OnIdle scheme stabilises)
2011 void wxWindowBase::ProcessInternalIdle()
2012 {
2013     OnInternalIdle();
2014
2015     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2016     while (node)
2017     {
2018         wxWindow *child = node->GetData();
2019         child->ProcessInternalIdle();
2020         node = node->GetNext();
2021     }
2022 }
2023 #endif
2024
2025 // ----------------------------------------------------------------------------
2026 // dialog units translations
2027 // ----------------------------------------------------------------------------
2028
2029 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2030 {
2031     int charWidth = GetCharWidth();
2032     int charHeight = GetCharHeight();
2033     wxPoint pt2 = wxDefaultPosition;
2034     if (pt.x != wxDefaultCoord)
2035         pt2.x = (int) ((pt.x * 4) / charWidth);
2036     if (pt.y != wxDefaultCoord)
2037         pt2.y = (int) ((pt.y * 8) / charHeight);
2038
2039     return pt2;
2040 }
2041
2042 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2043 {
2044     int charWidth = GetCharWidth();
2045     int charHeight = GetCharHeight();
2046     wxPoint pt2 = wxDefaultPosition;
2047     if (pt.x != wxDefaultCoord)
2048         pt2.x = (int) ((pt.x * charWidth) / 4);
2049     if (pt.y != wxDefaultCoord)
2050         pt2.y = (int) ((pt.y * charHeight) / 8);
2051
2052     return pt2;
2053 }
2054
2055 // ----------------------------------------------------------------------------
2056 // event handlers
2057 // ----------------------------------------------------------------------------
2058
2059 // propagate the colour change event to the subwindows
2060 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2061 {
2062     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2063     while ( node )
2064     {
2065         // Only propagate to non-top-level windows
2066         wxWindow *win = node->GetData();
2067         if ( !win->IsTopLevel() )
2068         {
2069             wxSysColourChangedEvent event2;
2070             event.SetEventObject(win);
2071             win->GetEventHandler()->ProcessEvent(event2);
2072         }
2073
2074         node = node->GetNext();
2075     }
2076
2077     Refresh();
2078 }
2079
2080 // the default action is to populate dialog with data when it's created,
2081 // and nudge the UI into displaying itself correctly in case
2082 // we've turned the wxUpdateUIEvents frequency down low.
2083 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2084 {
2085     TransferDataToWindow();
2086
2087     // Update the UI at this point
2088     UpdateWindowUI(wxUPDATE_UI_RECURSE);
2089 }
2090
2091 // methods for drawing the sizers in a visible way
2092 #ifdef __WXDEBUG__
2093
2094 static void DrawSizers(wxWindowBase *win);
2095
2096 static void DrawBorder(wxWindowBase *win, const wxRect& rect, bool fill = false)
2097 {
2098     wxClientDC dc((wxWindow *)win);
2099     dc.SetPen(*wxRED_PEN);
2100     dc.SetBrush(fill ? wxBrush(*wxRED, wxCROSSDIAG_HATCH): *wxTRANSPARENT_BRUSH);
2101     dc.DrawRectangle(rect.Deflate(1, 1));
2102 }
2103
2104 static void DrawSizer(wxWindowBase *win, wxSizer *sizer)
2105 {
2106     const wxSizerItemList& items = sizer->GetChildren();
2107     for ( wxSizerItemList::const_iterator i = items.begin(),
2108                                         end = items.end();
2109           i != end;
2110           ++i )
2111     {
2112         wxSizerItem *item = *i;
2113         if ( item->IsSizer() )
2114         {
2115             DrawBorder(win, item->GetRect().Deflate(2));
2116             DrawSizer(win, item->GetSizer());
2117         }
2118         else if ( item->IsSpacer() )
2119         {
2120             DrawBorder(win, item->GetRect().Deflate(2), true);
2121         }
2122         else if ( item->IsWindow() )
2123         {
2124             DrawSizers(item->GetWindow());
2125         }
2126     }
2127 }
2128
2129 static void DrawSizers(wxWindowBase *win)
2130 {
2131     wxSizer *sizer = win->GetSizer();
2132     if ( sizer )
2133     {
2134         DrawBorder(win, win->GetClientSize());
2135         DrawSizer(win, sizer);
2136     }
2137     else // no sizer, still recurse into the children
2138     {
2139         const wxWindowList& children = win->GetChildren();
2140         for ( wxWindowList::const_iterator i = children.begin(),
2141                                          end = children.end();
2142               i != end;
2143               ++i )
2144         {
2145             DrawSizers(*i);
2146         }
2147     }
2148 }
2149
2150 #endif // __WXDEBUG__
2151
2152 // process special middle clicks
2153 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2154 {
2155     if ( event.ControlDown() && event.AltDown() )
2156     {
2157 #ifdef __WXDEBUG__
2158         // Ctrl-Alt-Shift-mclick makes the sizers visible in debug builds
2159         if ( event.ShiftDown() )
2160         {
2161             DrawSizers(this);
2162             return;
2163         }
2164 #endif // __WXDEBUG__
2165
2166 #if wxUSE_MSGDLG
2167         // don't translate these strings
2168         wxString port;
2169
2170 #ifdef __WXUNIVERSAL__
2171         port = _T("Univ/");
2172 #endif // __WXUNIVERSAL__
2173
2174         switch ( wxGetOsVersion() )
2175         {
2176             case wxMOTIF_X:            port += _T("Motif"); break;
2177             case wxMAC:
2178             case wxMAC_DARWIN:         port += _T("Mac"); break;
2179             case wxBEOS:               port += _T("BeOS"); break;
2180             case wxGTK:
2181             case wxGTK_WIN32:
2182             case wxGTK_OS2:
2183             case wxGTK_BEOS:           port += _T("GTK"); break;
2184             case wxWINDOWS:
2185             case wxPENWINDOWS:
2186             case wxWINDOWS_NT:
2187             case wxWIN32S:
2188             case wxWIN95:
2189             case wxWIN386:             port += _T("MS Windows"); break;
2190             case wxMGL_UNIX:
2191             case wxMGL_X:
2192             case wxMGL_WIN32:
2193             case wxMGL_OS2:            port += _T("MGL"); break;
2194             case wxWINDOWS_OS2:
2195             case wxOS2_PM:             port += _T("OS/2"); break;
2196             case wxPALMOS:             port += _T("Palm OS"); break;
2197             case wxWINDOWS_CE:         port += _T("Windows CE (generic)"); break;
2198             case wxWINDOWS_POCKETPC:   port += _T("Windows CE PocketPC"); break;
2199             case wxWINDOWS_SMARTPHONE: port += _T("Windows CE Smartphone"); break;
2200             default:            port += _T("unknown"); break;
2201         }
2202
2203         wxMessageBox(wxString::Format(
2204                                       _T(
2205                                         "       wxWidgets Library (%s port)\nVersion %d.%d.%d%s%s, compiled at %s %s%s\n   Copyright (c) 1995-2006 wxWidgets team"
2206                                         ),
2207                                       port.c_str(),
2208                                       wxMAJOR_VERSION,
2209                                       wxMINOR_VERSION,
2210                                       wxRELEASE_NUMBER,
2211 #if wxUSE_UNICODE
2212                                       L" (Unicode)",
2213 #else
2214                                       "",
2215 #endif
2216 #ifdef __WXDEBUG__
2217                                       _T(" Debug build"),
2218 #else
2219                                       wxEmptyString,
2220 #endif
2221                                       __TDATE__,
2222                                       __TTIME__,
2223 #ifdef __WXGTK__
2224                                       wxString::Format(_T("\nagainst GTK+ %d.%d.%d. Runtime GTK+ version: %d.%d.%d"), GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION, gtk_major_version, gtk_minor_version, gtk_micro_version).c_str()
2225 #else
2226                                       ""
2227 #endif
2228                                      ),
2229                      _T("wxWidgets information"),
2230                      wxICON_INFORMATION | wxOK,
2231                      (wxWindow *)this);
2232     }
2233     else
2234 #endif // wxUSE_MSGDLG
2235     {
2236         event.Skip();
2237     }
2238 }
2239
2240 // ----------------------------------------------------------------------------
2241 // accessibility
2242 // ----------------------------------------------------------------------------
2243
2244 #if wxUSE_ACCESSIBILITY
2245 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2246 {
2247     if (m_accessible && (accessible != m_accessible))
2248         delete m_accessible;
2249     m_accessible = accessible;
2250     if (m_accessible)
2251         m_accessible->SetWindow((wxWindow*) this);
2252 }
2253
2254 // Returns the accessible object, creating if necessary.
2255 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2256 {
2257     if (!m_accessible)
2258         m_accessible = CreateAccessible();
2259     return m_accessible;
2260 }
2261
2262 // Override to create a specific accessible object.
2263 wxAccessible* wxWindowBase::CreateAccessible()
2264 {
2265     return new wxWindowAccessible((wxWindow*) this);
2266 }
2267
2268 #endif
2269
2270 // ----------------------------------------------------------------------------
2271 // list classes implementation
2272 // ----------------------------------------------------------------------------
2273
2274 #if wxUSE_STL
2275
2276 #include "wx/listimpl.cpp"
2277 WX_DEFINE_LIST(wxWindowList)
2278
2279 #else
2280
2281 void wxWindowListNode::DeleteData()
2282 {
2283     delete (wxWindow *)GetData();
2284 }
2285
2286 #endif
2287
2288 // ----------------------------------------------------------------------------
2289 // borders
2290 // ----------------------------------------------------------------------------
2291
2292 wxBorder wxWindowBase::GetBorder(long flags) const
2293 {
2294     wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2295     if ( border == wxBORDER_DEFAULT )
2296     {
2297         border = GetDefaultBorder();
2298     }
2299
2300     return border;
2301 }
2302
2303 wxBorder wxWindowBase::GetDefaultBorder() const
2304 {
2305     return wxBORDER_NONE;
2306 }
2307
2308 // ----------------------------------------------------------------------------
2309 // hit testing
2310 // ----------------------------------------------------------------------------
2311
2312 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2313 {
2314     // here we just check if the point is inside the window or not
2315
2316     // check the top and left border first
2317     bool outside = x < 0 || y < 0;
2318     if ( !outside )
2319     {
2320         // check the right and bottom borders too
2321         wxSize size = GetSize();
2322         outside = x >= size.x || y >= size.y;
2323     }
2324
2325     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2326 }
2327
2328 // ----------------------------------------------------------------------------
2329 // mouse capture
2330 // ----------------------------------------------------------------------------
2331
2332 struct WXDLLEXPORT wxWindowNext
2333 {
2334     wxWindow *win;
2335     wxWindowNext *next;
2336 } *wxWindowBase::ms_winCaptureNext = NULL;
2337 wxWindow *wxWindowBase::ms_winCaptureCurrent = NULL;
2338 bool wxWindowBase::ms_winCaptureChanging = false;
2339
2340 void wxWindowBase::CaptureMouse()
2341 {
2342     wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), wx_static_cast(void*, this));
2343
2344     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive CaptureMouse call?") );
2345
2346     ms_winCaptureChanging = true;
2347
2348     wxWindow *winOld = GetCapture();
2349     if ( winOld )
2350     {
2351         ((wxWindowBase*) winOld)->DoReleaseMouse();
2352
2353         // save it on stack
2354         wxWindowNext *item = new wxWindowNext;
2355         item->win = winOld;
2356         item->next = ms_winCaptureNext;
2357         ms_winCaptureNext = item;
2358     }
2359     //else: no mouse capture to save
2360
2361     DoCaptureMouse();
2362     ms_winCaptureCurrent = (wxWindow*)this;
2363
2364     ms_winCaptureChanging = false;
2365 }
2366
2367 void wxWindowBase::ReleaseMouse()
2368 {
2369     wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), wx_static_cast(void*, this));
2370
2371     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive ReleaseMouse call?") );
2372
2373     wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2374
2375     ms_winCaptureChanging = true;
2376
2377     DoReleaseMouse();
2378     ms_winCaptureCurrent = NULL;
2379
2380     if ( ms_winCaptureNext )
2381     {
2382         ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2383         ms_winCaptureCurrent = ms_winCaptureNext->win;
2384
2385         wxWindowNext *item = ms_winCaptureNext;
2386         ms_winCaptureNext = item->next;
2387         delete item;
2388     }
2389     //else: stack is empty, no previous capture
2390
2391     ms_winCaptureChanging = false;
2392
2393     wxLogTrace(_T("mousecapture"),
2394         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2395         wx_static_cast(void*, GetCapture()));
2396 }
2397
2398 static void DoNotifyWindowAboutCaptureLost(wxWindow *win)
2399 {
2400     wxMouseCaptureLostEvent event(win->GetId());
2401     event.SetEventObject(win);
2402     bool processed = win->GetEventHandler()->ProcessEvent(event);
2403
2404     wxASSERT_MSG( processed,
2405                   _T("window that captured mouse didn't process wxEVT_MOUSE_CAPTURE_LOST") );
2406 }
2407
2408 /* static */
2409 void wxWindowBase::NotifyCaptureLost(wxWindow *gainedCapture)
2410 {
2411     // don't do anything if capture lost was expected, i.e. resulted from
2412     // a wx call to ReleaseMouse or CaptureMouse:
2413     if ( ms_winCaptureChanging )
2414         return;
2415
2416     // if the capture was lost unexpectedly, notify every window that has
2417     // capture (on stack or current) about it and clear the stack:
2418
2419     if ( ms_winCaptureCurrent )
2420     {
2421         DoNotifyWindowAboutCaptureLost(ms_winCaptureCurrent);
2422         ms_winCaptureCurrent = NULL;
2423     }
2424
2425     while ( ms_winCaptureNext )
2426     {
2427         wxWindowNext *item = ms_winCaptureNext;
2428         ms_winCaptureNext = item->next;
2429
2430         DoNotifyWindowAboutCaptureLost(item->win);
2431
2432         delete item;
2433     }
2434 }
2435
2436 #if wxUSE_HOTKEY
2437
2438 bool
2439 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2440                              int WXUNUSED(modifiers),
2441                              int WXUNUSED(keycode))
2442 {
2443     // not implemented
2444     return false;
2445 }
2446
2447 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2448 {
2449     // not implemented
2450     return false;
2451 }
2452
2453 #endif // wxUSE_HOTKEY
2454
2455 void wxWindowBase::SendDestroyEvent()
2456 {
2457     wxWindowDestroyEvent event;
2458     event.SetEventObject(this);
2459     event.SetId(GetId());
2460     GetEventHandler()->ProcessEvent(event);
2461 }
2462
2463 // ----------------------------------------------------------------------------
2464 // event processing
2465 // ----------------------------------------------------------------------------
2466
2467 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2468 {
2469 #if wxUSE_VALIDATORS
2470     // Can only use the validator of the window which
2471     // is receiving the event
2472     if ( event.GetEventObject() == this )
2473     {
2474         wxValidator *validator = GetValidator();
2475         if ( validator && validator->ProcessEvent(event) )
2476         {
2477             return true;
2478         }
2479     }
2480 #endif // wxUSE_VALIDATORS
2481
2482     return false;
2483 }
2484
2485 bool wxWindowBase::TryParent(wxEvent& event)
2486 {
2487     // carry on up the parent-child hierarchy if the propagation count hasn't
2488     // reached zero yet
2489     if ( event.ShouldPropagate() )
2490     {
2491         // honour the requests to stop propagation at this window: this is
2492         // used by the dialogs, for example, to prevent processing the events
2493         // from the dialog controls in the parent frame which rarely, if ever,
2494         // makes sense
2495         if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2496         {
2497             wxWindow *parent = GetParent();
2498             if ( parent && !parent->IsBeingDeleted() )
2499             {
2500                 wxPropagateOnce propagateOnce(event);
2501
2502                 return parent->GetEventHandler()->ProcessEvent(event);
2503             }
2504         }
2505     }
2506
2507     return wxEvtHandler::TryParent(event);
2508 }
2509
2510 // ----------------------------------------------------------------------------
2511 // keyboard navigation
2512 // ----------------------------------------------------------------------------
2513
2514 // Navigates in the specified direction.
2515 bool wxWindowBase::Navigate(int flags)
2516 {
2517     wxNavigationKeyEvent eventNav;
2518     eventNav.SetFlags(flags);
2519     eventNav.SetEventObject(this);
2520     if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2521     {
2522         return true;
2523     }
2524     return false;
2525 }
2526
2527 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2528 {
2529     // check that we're not a top level window
2530     wxCHECK_RET( GetParent(),
2531                     _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2532
2533     // detect the special case when we have nothing to do anyhow and when the
2534     // code below wouldn't work
2535     if ( win == this )
2536         return;
2537
2538     // find the target window in the siblings list
2539     wxWindowList& siblings = GetParent()->GetChildren();
2540     wxWindowList::compatibility_iterator i = siblings.Find(win);
2541     wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2542
2543     // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2544     // can't just move the node around
2545     wxWindow *self = (wxWindow *)this;
2546     siblings.DeleteObject(self);
2547     if ( move == MoveAfter )
2548     {
2549         i = i->GetNext();
2550     }
2551
2552     if ( i )
2553     {
2554         siblings.Insert(i, self);
2555     }
2556     else // MoveAfter and win was the last sibling
2557     {
2558         siblings.Append(self);
2559     }
2560 }
2561
2562 // ----------------------------------------------------------------------------
2563 // focus handling
2564 // ----------------------------------------------------------------------------
2565
2566 /*static*/ wxWindow* wxWindowBase::FindFocus()
2567 {
2568     wxWindowBase *win = DoFindFocus();
2569     return win ? win->GetMainWindowOfCompositeControl() : NULL;
2570 }
2571
2572 // ----------------------------------------------------------------------------
2573 // global functions
2574 // ----------------------------------------------------------------------------
2575
2576 wxWindow* wxGetTopLevelParent(wxWindow *win)
2577 {
2578     while ( win && !win->IsTopLevel() )
2579          win = win->GetParent();
2580
2581     return win;
2582 }
2583
2584 #if wxUSE_ACCESSIBILITY
2585 // ----------------------------------------------------------------------------
2586 // accessible object for windows
2587 // ----------------------------------------------------------------------------
2588
2589 // Can return either a child object, or an integer
2590 // representing the child element, starting from 1.
2591 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2592 {
2593     wxASSERT( GetWindow() != NULL );
2594     if (!GetWindow())
2595         return wxACC_FAIL;
2596
2597     return wxACC_NOT_IMPLEMENTED;
2598 }
2599
2600 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2601 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2602 {
2603     wxASSERT( GetWindow() != NULL );
2604     if (!GetWindow())
2605         return wxACC_FAIL;
2606
2607     wxWindow* win = NULL;
2608     if (elementId == 0)
2609     {
2610         win = GetWindow();
2611     }
2612     else
2613     {
2614         if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2615         {
2616             win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2617         }
2618         else
2619             return wxACC_FAIL;
2620     }
2621     if (win)
2622     {
2623         rect = win->GetRect();
2624         if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2625             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2626         return wxACC_OK;
2627     }
2628
2629     return wxACC_NOT_IMPLEMENTED;
2630 }
2631
2632 // Navigates from fromId to toId/toObject.
2633 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2634                              int* WXUNUSED(toId), wxAccessible** toObject)
2635 {
2636     wxASSERT( GetWindow() != NULL );
2637     if (!GetWindow())
2638         return wxACC_FAIL;
2639
2640     switch (navDir)
2641     {
2642     case wxNAVDIR_FIRSTCHILD:
2643         {
2644             if (GetWindow()->GetChildren().GetCount() == 0)
2645                 return wxACC_FALSE;
2646             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2647             *toObject = childWindow->GetOrCreateAccessible();
2648
2649             return wxACC_OK;
2650         }
2651     case wxNAVDIR_LASTCHILD:
2652         {
2653             if (GetWindow()->GetChildren().GetCount() == 0)
2654                 return wxACC_FALSE;
2655             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2656             *toObject = childWindow->GetOrCreateAccessible();
2657
2658             return wxACC_OK;
2659         }
2660     case wxNAVDIR_RIGHT:
2661     case wxNAVDIR_DOWN:
2662     case wxNAVDIR_NEXT:
2663         {
2664             wxWindowList::compatibility_iterator node =
2665                 wxWindowList::compatibility_iterator();
2666             if (fromId == 0)
2667             {
2668                 // Can't navigate to sibling of this window
2669                 // if we're a top-level window.
2670                 if (!GetWindow()->GetParent())
2671                     return wxACC_NOT_IMPLEMENTED;
2672
2673                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2674             }
2675             else
2676             {
2677                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2678                     node = GetWindow()->GetChildren().Item(fromId-1);
2679             }
2680
2681             if (node && node->GetNext())
2682             {
2683                 wxWindow* nextWindow = node->GetNext()->GetData();
2684                 *toObject = nextWindow->GetOrCreateAccessible();
2685                 return wxACC_OK;
2686             }
2687             else
2688                 return wxACC_FALSE;
2689         }
2690     case wxNAVDIR_LEFT:
2691     case wxNAVDIR_UP:
2692     case wxNAVDIR_PREVIOUS:
2693         {
2694             wxWindowList::compatibility_iterator node =
2695                 wxWindowList::compatibility_iterator();
2696             if (fromId == 0)
2697             {
2698                 // Can't navigate to sibling of this window
2699                 // if we're a top-level window.
2700                 if (!GetWindow()->GetParent())
2701                     return wxACC_NOT_IMPLEMENTED;
2702
2703                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2704             }
2705             else
2706             {
2707                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2708                     node = GetWindow()->GetChildren().Item(fromId-1);
2709             }
2710
2711             if (node && node->GetPrevious())
2712             {
2713                 wxWindow* previousWindow = node->GetPrevious()->GetData();
2714                 *toObject = previousWindow->GetOrCreateAccessible();
2715                 return wxACC_OK;
2716             }
2717             else
2718                 return wxACC_FALSE;
2719         }
2720     }
2721
2722     return wxACC_NOT_IMPLEMENTED;
2723 }
2724
2725 // Gets the name of the specified object.
2726 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2727 {
2728     wxASSERT( GetWindow() != NULL );
2729     if (!GetWindow())
2730         return wxACC_FAIL;
2731
2732     wxString title;
2733
2734     // If a child, leave wxWidgets to call the function on the actual
2735     // child object.
2736     if (childId > 0)
2737         return wxACC_NOT_IMPLEMENTED;
2738
2739     // This will eventually be replaced by specialised
2740     // accessible classes, one for each kind of wxWidgets
2741     // control or window.
2742 #if wxUSE_BUTTON
2743     if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2744         title = ((wxButton*) GetWindow())->GetLabel();
2745     else
2746 #endif
2747         title = GetWindow()->GetName();
2748
2749     if (!title.empty())
2750     {
2751         *name = title;
2752         return wxACC_OK;
2753     }
2754     else
2755         return wxACC_NOT_IMPLEMENTED;
2756 }
2757
2758 // Gets the number of children.
2759 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2760 {
2761     wxASSERT( GetWindow() != NULL );
2762     if (!GetWindow())
2763         return wxACC_FAIL;
2764
2765     *childId = (int) GetWindow()->GetChildren().GetCount();
2766     return wxACC_OK;
2767 }
2768
2769 // Gets the specified child (starting from 1).
2770 // If *child is NULL and return value is wxACC_OK,
2771 // this means that the child is a simple element and
2772 // not an accessible object.
2773 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2774 {
2775     wxASSERT( GetWindow() != NULL );
2776     if (!GetWindow())
2777         return wxACC_FAIL;
2778
2779     if (childId == 0)
2780     {
2781         *child = this;
2782         return wxACC_OK;
2783     }
2784
2785     if (childId > (int) GetWindow()->GetChildren().GetCount())
2786         return wxACC_FAIL;
2787
2788     wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2789     *child = childWindow->GetOrCreateAccessible();
2790     if (*child)
2791         return wxACC_OK;
2792     else
2793         return wxACC_FAIL;
2794 }
2795
2796 // Gets the parent, or NULL.
2797 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2798 {
2799     wxASSERT( GetWindow() != NULL );
2800     if (!GetWindow())
2801         return wxACC_FAIL;
2802
2803     wxWindow* parentWindow = GetWindow()->GetParent();
2804     if (!parentWindow)
2805     {
2806         *parent = NULL;
2807         return wxACC_OK;
2808     }
2809     else
2810     {
2811         *parent = parentWindow->GetOrCreateAccessible();
2812         if (*parent)
2813             return wxACC_OK;
2814         else
2815             return wxACC_FAIL;
2816     }
2817 }
2818
2819 // Performs the default action. childId is 0 (the action for this object)
2820 // or > 0 (the action for a child).
2821 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2822 // window (e.g. an edit control).
2823 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2824 {
2825     wxASSERT( GetWindow() != NULL );
2826     if (!GetWindow())
2827         return wxACC_FAIL;
2828
2829     return wxACC_NOT_IMPLEMENTED;
2830 }
2831
2832 // Gets the default action for this object (0) or > 0 (the action for a child).
2833 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2834 // string if there is no action.
2835 // The retrieved string describes the action that is performed on an object,
2836 // not what the object does as a result. For example, a toolbar button that prints
2837 // a document has a default action of "Press" rather than "Prints the current document."
2838 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2839 {
2840     wxASSERT( GetWindow() != NULL );
2841     if (!GetWindow())
2842         return wxACC_FAIL;
2843
2844     return wxACC_NOT_IMPLEMENTED;
2845 }
2846
2847 // Returns the description for this object or a child.
2848 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2849 {
2850     wxASSERT( GetWindow() != NULL );
2851     if (!GetWindow())
2852         return wxACC_FAIL;
2853
2854     wxString ht(GetWindow()->GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Keyboard));
2855     if (!ht.empty())
2856     {
2857         *description = ht;
2858         return wxACC_OK;
2859     }
2860     return wxACC_NOT_IMPLEMENTED;
2861 }
2862
2863 // Returns help text for this object or a child, similar to tooltip text.
2864 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2865 {
2866     wxASSERT( GetWindow() != NULL );
2867     if (!GetWindow())
2868         return wxACC_FAIL;
2869
2870     wxString ht(GetWindow()->GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Keyboard));
2871     if (!ht.empty())
2872     {
2873         *helpText = ht;
2874         return wxACC_OK;
2875     }
2876     return wxACC_NOT_IMPLEMENTED;
2877 }
2878
2879 // Returns the keyboard shortcut for this object or child.
2880 // Return e.g. ALT+K
2881 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2882 {
2883     wxASSERT( GetWindow() != NULL );
2884     if (!GetWindow())
2885         return wxACC_FAIL;
2886
2887     return wxACC_NOT_IMPLEMENTED;
2888 }
2889
2890 // Returns a role constant.
2891 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2892 {
2893     wxASSERT( GetWindow() != NULL );
2894     if (!GetWindow())
2895         return wxACC_FAIL;
2896
2897     // If a child, leave wxWidgets to call the function on the actual
2898     // child object.
2899     if (childId > 0)
2900         return wxACC_NOT_IMPLEMENTED;
2901
2902     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2903         return wxACC_NOT_IMPLEMENTED;
2904 #if wxUSE_STATUSBAR
2905     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2906         return wxACC_NOT_IMPLEMENTED;
2907 #endif
2908 #if wxUSE_TOOLBAR
2909     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2910         return wxACC_NOT_IMPLEMENTED;
2911 #endif
2912
2913     //*role = wxROLE_SYSTEM_CLIENT;
2914     *role = wxROLE_SYSTEM_CLIENT;
2915     return wxACC_OK;
2916
2917     #if 0
2918     return wxACC_NOT_IMPLEMENTED;
2919     #endif
2920 }
2921
2922 // Returns a state constant.
2923 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2924 {
2925     wxASSERT( GetWindow() != NULL );
2926     if (!GetWindow())
2927         return wxACC_FAIL;
2928
2929     // If a child, leave wxWidgets to call the function on the actual
2930     // child object.
2931     if (childId > 0)
2932         return wxACC_NOT_IMPLEMENTED;
2933
2934     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2935         return wxACC_NOT_IMPLEMENTED;
2936
2937 #if wxUSE_STATUSBAR
2938     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2939         return wxACC_NOT_IMPLEMENTED;
2940 #endif
2941 #if wxUSE_TOOLBAR
2942     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2943         return wxACC_NOT_IMPLEMENTED;
2944 #endif
2945
2946     *state = 0;
2947     return wxACC_OK;
2948
2949     #if 0
2950     return wxACC_NOT_IMPLEMENTED;
2951     #endif
2952 }
2953
2954 // Returns a localized string representing the value for the object
2955 // or child.
2956 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2957 {
2958     wxASSERT( GetWindow() != NULL );
2959     if (!GetWindow())
2960         return wxACC_FAIL;
2961
2962     return wxACC_NOT_IMPLEMENTED;
2963 }
2964
2965 // Selects the object or child.
2966 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2967 {
2968     wxASSERT( GetWindow() != NULL );
2969     if (!GetWindow())
2970         return wxACC_FAIL;
2971
2972     return wxACC_NOT_IMPLEMENTED;
2973 }
2974
2975 // Gets the window with the keyboard focus.
2976 // If childId is 0 and child is NULL, no object in
2977 // this subhierarchy has the focus.
2978 // If this object has the focus, child should be 'this'.
2979 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2980 {
2981     wxASSERT( GetWindow() != NULL );
2982     if (!GetWindow())
2983         return wxACC_FAIL;
2984
2985     return wxACC_NOT_IMPLEMENTED;
2986 }
2987
2988 // Gets a variant representing the selected children
2989 // of this object.
2990 // Acceptable values:
2991 // - a null variant (IsNull() returns true)
2992 // - a list variant (GetType() == wxT("list")
2993 // - an integer representing the selected child element,
2994 //   or 0 if this object is selected (GetType() == wxT("long")
2995 // - a "void*" pointer to a wxAccessible child object
2996 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
2997 {
2998     wxASSERT( GetWindow() != NULL );
2999     if (!GetWindow())
3000         return wxACC_FAIL;
3001
3002     return wxACC_NOT_IMPLEMENTED;
3003 }
3004
3005 #endif // wxUSE_ACCESSIBILITY