src/common/wincmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/window.cpp
   3 // Purpose:     common (to all ports) wxWindow functions
   4 // Author:      Julian Smart, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     13/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/string.h"
  29     #include "wx/log.h"
  30     #include "wx/intl.h"
  31     #include "wx/frame.h"
  32     #include "wx/window.h"
  33     #include "wx/control.h"
  34     #include "wx/checkbox.h"
  35     #include "wx/radiobut.h"
  36     #include "wx/statbox.h"
  37     #include "wx/textctrl.h"
  38     #include "wx/settings.h"
  39     #include "wx/dialog.h"
  40     #include "wx/msgdlg.h"
  41     #include "wx/statusbr.h"
  42     #include "wx/toolbar.h"
  43     #include "wx/dcclient.h"
  44     #include "wx/scrolbar.h"
  45     #include "wx/layout.h"
  46     #include "wx/sizer.h"
  47 #endif //WX_PRECOMP
  48
  49 #if wxUSE_DRAG_AND_DROP
  50     #include "wx/dnd.h"
  51 #endif // wxUSE_DRAG_AND_DROP
  52
  53 #if wxUSE_ACCESSIBILITY
  54     #include "wx/access.h"
  55 #endif
  56
  57 #if wxUSE_HELP
  58     #include "wx/cshelp.h"
  59 #endif // wxUSE_HELP
  60
  61 #if wxUSE_TOOLTIPS
  62     #include "wx/tooltip.h"
  63 #endif // wxUSE_TOOLTIPS
  64
  65 #if wxUSE_CARET
  66     #include "wx/caret.h"
  67 #endif // wxUSE_CARET
  68
  69 #if wxUSE_SYSTEM_OPTIONS
  70     #include "wx/sysopt.h"
  71 #endif
  72
  73 // For reporting compile- and runtime version of GTK+ in the ctrl+alt+mclick dialog.
  74 // The gtk includes don't pull any other headers in, at least not on my system - MR
  75 #ifdef __WXGTK__
  76     #ifdef __WXGTK20__
  77         #include <gtk/gtkversion.h>
  78     #else
  79         #include <gtk/gtkfeatures.h>
  80     #endif
  81     extern const unsigned int gtk_major_version;
  82     extern const unsigned int gtk_minor_version;
  83     extern const unsigned int gtk_micro_version;
  84 #endif
  85
  86 #include "wx/platinfo.h"
  87
  88 // Windows List
  89 WXDLLIMPEXP_DATA_CORE(wxWindowList) wxTopLevelWindows;
  90
  91 // ----------------------------------------------------------------------------
  92 // static data
  93 // ----------------------------------------------------------------------------
  94
  95 #if defined(__WXPALMOS__)
  96 int wxWindowBase::ms_lastControlId = 32767;
  97 #elif defined(__WXPM__)
  98 int wxWindowBase::ms_lastControlId = 2000;
  99 #else
 100 int wxWindowBase::ms_lastControlId = -200;
 101 #endif
 102
 103 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
 104
 105 // ----------------------------------------------------------------------------
 106 // event table
 107 // ----------------------------------------------------------------------------
 108
 109 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
 110     EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
 111     EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
 112     EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
 113
 114 #if wxUSE_HELP
 115     EVT_HELP(wxID_ANY, wxWindowBase::OnHelp)
 116 #endif // wxUSE_HELP
 117
 118 END_EVENT_TABLE()
 119
 120 // ============================================================================
 121 // implementation of the common functionality of the wxWindow class
 122 // ============================================================================
 123
 124 // ----------------------------------------------------------------------------
 125 // initialization
 126 // ----------------------------------------------------------------------------
 127
 128 // the default initialization
 129 wxWindowBase::wxWindowBase()
 130 {
 131     // no window yet, no parent nor children
 132     m_parent = (wxWindow *)NULL;
 133     m_windowId = wxID_ANY;
 134
 135     // no constraints on the minimal window size
 136     m_minWidth =
 137     m_maxWidth = wxDefaultCoord;
 138     m_minHeight =
 139     m_maxHeight = wxDefaultCoord;
 140
 141     // invalidiated cache value
 142     m_bestSizeCache = wxDefaultSize;
 143
 144     // window are created enabled and visible by default
 145     m_isShown =
 146     m_isEnabled = true;
 147
 148     // the default event handler is just this window
 149     m_eventHandler = this;
 150
 151 #if wxUSE_VALIDATORS
 152     // no validator
 153     m_windowValidator = (wxValidator *) NULL;
 154 #endif // wxUSE_VALIDATORS
 155
 156     // the colours/fonts are default for now, so leave m_font,
 157     // m_backgroundColour and m_foregroundColour uninitialized and set those
 158     m_hasBgCol =
 159     m_hasFgCol =
 160     m_hasFont = false;
 161     m_inheritBgCol =
 162     m_inheritFgCol =
 163     m_inheritFont = false;
 164
 165     // no style bits
 166     m_exStyle =
 167     m_windowStyle = 0;
 168
 169     m_backgroundStyle = wxBG_STYLE_SYSTEM;
 170
 171 #if wxUSE_CONSTRAINTS
 172     // no constraints whatsoever
 173     m_constraints = (wxLayoutConstraints *) NULL;
 174     m_constraintsInvolvedIn = (wxWindowList *) NULL;
 175 #endif // wxUSE_CONSTRAINTS
 176
 177     m_windowSizer = (wxSizer *) NULL;
 178     m_containingSizer = (wxSizer *) NULL;
 179     m_autoLayout = false;
 180
 181 #if wxUSE_DRAG_AND_DROP
 182     m_dropTarget = (wxDropTarget *)NULL;
 183 #endif // wxUSE_DRAG_AND_DROP
 184
 185 #if wxUSE_TOOLTIPS
 186     m_tooltip = (wxToolTip *)NULL;
 187 #endif // wxUSE_TOOLTIPS
 188
 189 #if wxUSE_CARET
 190     m_caret = (wxCaret *)NULL;
 191 #endif // wxUSE_CARET
 192
 193 #if wxUSE_PALETTE
 194     m_hasCustomPalette = false;
 195 #endif // wxUSE_PALETTE
 196
 197 #if wxUSE_ACCESSIBILITY
 198     m_accessible = NULL;
 199 #endif
 200
 201     m_virtualSize = wxDefaultSize;
 202
 203     m_scrollHelper = (wxScrollHelper *) NULL;
 204
 205     m_minVirtualWidth =
 206     m_maxVirtualWidth = wxDefaultCoord;
 207     m_minVirtualHeight =
 208     m_maxVirtualHeight = wxDefaultCoord;
 209
 210     m_windowVariant = wxWINDOW_VARIANT_NORMAL;
 211 #if wxUSE_SYSTEM_OPTIONS
 212     if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) )
 213     {
 214        m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ;
 215     }
 216 #endif
 217
 218     // Whether we're using the current theme for this window (wxGTK only for now)
 219     m_themeEnabled = false;
 220
 221     // VZ: this one shouldn't exist...
 222     m_isBeingDeleted = false;
 223 }
 224
 225 // common part of window creation process
 226 bool wxWindowBase::CreateBase(wxWindowBase *parent,
 227                               wxWindowID id,
 228                               const wxPoint& WXUNUSED(pos),
 229                               const wxSize& WXUNUSED(size),
 230                               long style,
 231                               const wxValidator& wxVALIDATOR_PARAM(validator),
 232                               const wxString& name)
 233 {
 234 #if wxUSE_STATBOX
 235     // wxGTK doesn't allow to create controls with static box as the parent so
 236     // this will result in a crash when the program is ported to wxGTK so warn
 237     // the user about it
 238
 239     // if you get this assert, the correct solution is to create the controls
 240     // as siblings of the static box
 241     wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
 242                   _T("wxStaticBox can't be used as a window parent!") );
 243 #endif // wxUSE_STATBOX
 244
 245     // ids are limited to 16 bits under MSW so if you care about portability,
 246     // it's not a good idea to use ids out of this range (and negative ids are
 247     // reserved for wxWidgets own usage)
 248     wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
 249                   _T("invalid id value") );
 250
 251     // generate a new id if the user doesn't care about it
 252     m_windowId = id == wxID_ANY ? NewControlId() : id;
 253
 254     SetName(name);
 255     SetWindowStyleFlag(style);
 256     SetParent(parent);
 257
 258 #if wxUSE_VALIDATORS
 259     SetValidator(validator);
 260 #endif // wxUSE_VALIDATORS
 261
 262     // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
 263     // have it too - like this it's possible to set it only in the top level
 264     // dialog/frame and all children will inherit it by defult
 265     if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
 266     {
 267         SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
 268     }
 269
 270     return true;
 271 }
 272
 273 // ----------------------------------------------------------------------------
 274 // destruction
 275 // ----------------------------------------------------------------------------
 276
 277 // common clean up
 278 wxWindowBase::~wxWindowBase()
 279 {
 280     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 281
 282     // FIXME if these 2 cases result from programming errors in the user code
 283     //       we should probably assert here instead of silently fixing them
 284
 285     // Just in case the window has been Closed, but we're then deleting
 286     // immediately: don't leave dangling pointers.
 287     wxPendingDelete.DeleteObject(this);
 288
 289     // Just in case we've loaded a top-level window via LoadNativeDialog but
 290     // we weren't a dialog class
 291     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 292
 293     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 294
 295     // reset the top-level parent's default item if it is this widget
 296     if ( m_parent )
 297     {
 298         wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent((wxWindow*)this),
 299                                               wxTopLevelWindow);
 300
 301         if ( tlw && tlw->GetDefaultItem() == this )
 302             tlw->SetDefaultItem(NULL);
 303         if ( tlw && tlw->GetTmpDefaultItem() == this )
 304             tlw->SetTmpDefaultItem(NULL);
 305     }
 306
 307     // reset the dangling pointer our parent window may keep to us
 308     if ( m_parent )
 309     {
 310         m_parent->RemoveChild(this);
 311     }
 312
 313 #if wxUSE_CARET
 314     delete m_caret;
 315 #endif // wxUSE_CARET
 316
 317 #if wxUSE_VALIDATORS
 318     delete m_windowValidator;
 319 #endif // wxUSE_VALIDATORS
 320
 321 #if wxUSE_CONSTRAINTS
 322     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
 323     // at deleted windows as they delete themselves.
 324     DeleteRelatedConstraints();
 325
 326     if ( m_constraints )
 327     {
 328         // This removes any dangling pointers to this window in other windows'
 329         // constraintsInvolvedIn lists.
 330         UnsetConstraints(m_constraints);
 331         delete m_constraints;
 332         m_constraints = NULL;
 333     }
 334 #endif // wxUSE_CONSTRAINTS
 335
 336     if ( m_containingSizer )
 337         m_containingSizer->Detach( (wxWindow*)this );
 338
 339     delete m_windowSizer;
 340
 341 #if wxUSE_DRAG_AND_DROP
 342     delete m_dropTarget;
 343 #endif // wxUSE_DRAG_AND_DROP
 344
 345 #if wxUSE_TOOLTIPS
 346     delete m_tooltip;
 347 #endif // wxUSE_TOOLTIPS
 348
 349 #if wxUSE_ACCESSIBILITY
 350     delete m_accessible;
 351 #endif
 352 }
 353
 354 void wxWindowBase::SendDestroyEvent()
 355 {
 356     wxWindowDestroyEvent event;
 357     event.SetEventObject(this);
 358     event.SetId(GetId());
 359     GetEventHandler()->ProcessEvent(event);
 360 }
 361
 362 bool wxWindowBase::Destroy()
 363 {
 364     delete this;
 365
 366     return true;
 367 }
 368
 369 bool wxWindowBase::Close(bool force)
 370 {
 371     wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
 372     event.SetEventObject(this);
 373     event.SetCanVeto(!force);
 374
 375     // return false if window wasn't closed because the application vetoed the
 376     // close event
 377     return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
 378 }
 379
 380 bool wxWindowBase::DestroyChildren()
 381 {
 382     wxWindowList::compatibility_iterator node;
 383     for ( ;; )
 384     {
 385         // we iterate until the list becomes empty
 386         node = GetChildren().GetFirst();
 387         if ( !node )
 388             break;
 389
 390         wxWindow *child = node->GetData();
 391
 392         // note that we really want to call delete and not ->Destroy() here
 393         // because we want to delete the child immediately, before we are
 394         // deleted, and delayed deletion would result in problems as our (top
 395         // level) child could outlive its parent
 396         delete child;
 397
 398         wxASSERT_MSG( !GetChildren().Find(child),
 399                       wxT("child didn't remove itself using RemoveChild()") );
 400     }
 401
 402     return true;
 403 }
 404
 405 // ----------------------------------------------------------------------------
 406 // size/position related methods
 407 // ----------------------------------------------------------------------------
 408
 409 // centre the window with respect to its parent in either (or both) directions
 410 void wxWindowBase::DoCentre(int dir)
 411 {
 412     wxCHECK_RET( !(dir & wxCENTRE_ON_SCREEN) && GetParent(),
 413                  _T("this method only implements centering child windows") );
 414
 415     SetSize(GetRect().CentreIn(GetParent()->GetClientSize(), dir));
 416 }
 417
 418 // fits the window around the children
 419 void wxWindowBase::Fit()
 420 {
 421     if ( !GetChildren().empty() )
 422     {
 423         SetSize(GetBestSize());
 424     }
 425     //else: do nothing if we have no children
 426 }
 427
 428 // fits virtual size (ie. scrolled area etc.) around children
 429 void wxWindowBase::FitInside()
 430 {
 431     if ( GetChildren().GetCount() > 0 )
 432     {
 433         SetVirtualSize( GetBestVirtualSize() );
 434     }
 435 }
 436
 437 // On Mac, scrollbars are explicitly children.
 438 #ifdef __WXMAC__
 439 static bool wxHasRealChildren(const wxWindowBase* win)
 440 {
 441     int realChildCount = 0;
 442
 443     for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
 444           node;
 445           node = node->GetNext() )
 446     {
 447         wxWindow *win = node->GetData();
 448         if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
 449             realChildCount ++;
 450     }
 451     return (realChildCount > 0);
 452 }
 453 #endif
 454
 455 void wxWindowBase::InvalidateBestSize()
 456 {
 457     m_bestSizeCache = wxDefaultSize;
 458
 459     // parent's best size calculation may depend on its children's
 460     // as long as child window we are in is not top level window itself
 461     // (because the TLW size is never resized automatically)
 462     // so let's invalidate it as well to be safe:
 463     if (m_parent && !IsTopLevel())
 464         m_parent->InvalidateBestSize();
 465 }
 466
 467 // return the size best suited for the current window
 468 wxSize wxWindowBase::DoGetBestSize() const
 469 {
 470     wxSize best;
 471
 472     if ( m_windowSizer )
 473     {
 474         best = GetWindowSizeForVirtualSize(m_windowSizer->GetMinSize());
 475     }
 476 #if wxUSE_CONSTRAINTS
 477     else if ( m_constraints )
 478     {
 479         wxConstCast(this, wxWindowBase)->SatisfyConstraints();
 480
 481         // our minimal acceptable size is such that all our windows fit inside
 482         int maxX = 0,
 483             maxY = 0;
 484
 485         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 486               node;
 487               node = node->GetNext() )
 488         {
 489             wxLayoutConstraints *c = node->GetData()->GetConstraints();
 490             if ( !c )
 491             {
 492                 // it's not normal that we have an unconstrained child, but
 493                 // what can we do about it?
 494                 continue;
 495             }
 496
 497             int x = c->right.GetValue(),
 498                 y = c->bottom.GetValue();
 499
 500             if ( x > maxX )
 501                 maxX = x;
 502
 503             if ( y > maxY )
 504                 maxY = y;
 505
 506             // TODO: we must calculate the overlaps somehow, otherwise we
 507             //       will never return a size bigger than the current one :-(
 508         }
 509
 510         best = wxSize(maxX, maxY);
 511     }
 512 #endif // wxUSE_CONSTRAINTS
 513     else if ( !GetChildren().empty()
 514 #ifdef __WXMAC__
 515               && wxHasRealChildren(this)
 516 #endif
 517               )
 518     {
 519         // our minimal acceptable size is such that all our visible child
 520         // windows fit inside
 521         int maxX = 0,
 522             maxY = 0;
 523
 524         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 525               node;
 526               node = node->GetNext() )
 527         {
 528             wxWindow *win = node->GetData();
 529             if ( win->IsTopLevel()
 530                     || !win->IsShown()
 531 #if wxUSE_STATUSBAR
 532                         || wxDynamicCast(win, wxStatusBar)
 533 #endif // wxUSE_STATUSBAR
 534                )
 535             {
 536                 // dialogs and frames lie in different top level windows -
 537                 // don't deal with them here; as for the status bars, they
 538                 // don't lie in the client area at all
 539                 continue;
 540             }
 541
 542             int wx, wy, ww, wh;
 543             win->GetPosition(&wx, &wy);
 544
 545             // if the window hadn't been positioned yet, assume that it is in
 546             // the origin
 547             if ( wx == wxDefaultCoord )
 548                 wx = 0;
 549             if ( wy == wxDefaultCoord )
 550                 wy = 0;
 551
 552             win->GetSize(&ww, &wh);
 553             if ( wx + ww > maxX )
 554                 maxX = wx + ww;
 555             if ( wy + wh > maxY )
 556                 maxY = wy + wh;
 557         }
 558
 559         best = wxSize(maxX, maxY);
 560     }
 561     else // ! has children
 562     {
 563         // for a generic window there is no natural best size so, if the
 564         // minimal size is not set, use the current size but take care to
 565         // remember it as minimal size for the next time because our best size
 566         // should be constant: otherwise we could get into a situation when the
 567         // window is initially at some size, then expanded to a larger size and
 568         // then, when the containing window is shrunk back (because our initial
 569         // best size had been used for computing the parent min size), we can't
 570         // be shrunk back any more because our best size is now bigger
 571         wxSize size = GetMinSize();
 572         if ( !size.IsFullySpecified() )
 573         {
 574             size.SetDefaults(GetSize());
 575             wxConstCast(this, wxWindowBase)->SetMinSize(size);
 576         }
 577
 578         // return as-is, unadjusted by the client size difference.
 579         return size;
 580     }
 581
 582     // Add any difference between size and client size
 583     wxSize diff = GetSize() - GetClientSize();
 584     best.x += wxMax(0, diff.x);
 585     best.y += wxMax(0, diff.y);
 586
 587     return best;
 588 }
 589
 590
 591 wxSize wxWindowBase::GetEffectiveMinSize() const
 592 {
 593     // merge the best size with the min size, giving priority to the min size
 594     wxSize min = GetMinSize();
 595     if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
 596     {
 597         wxSize best = GetBestSize();
 598         if (min.x == wxDefaultCoord) min.x =  best.x;
 599         if (min.y == wxDefaultCoord) min.y =  best.y;
 600     }
 601     return min;
 602 }
 603
 604
 605 void wxWindowBase::SetInitialSize(const wxSize& size)
 606 {
 607     // Set the min size to the size passed in.  This will usually either be
 608     // wxDefaultSize or the size passed to this window's ctor/Create function.
 609     SetMinSize(size);
 610
 611     // Merge the size with the best size if needed
 612     wxSize best = GetEffectiveMinSize();
 613
 614     // If the current size doesn't match then change it
 615     if (GetSize() != best)
 616         SetSize(best);
 617 }
 618
 619
 620 // by default the origin is not shifted
 621 wxPoint wxWindowBase::GetClientAreaOrigin() const
 622 {
 623     return wxPoint(0,0);
 624 }
 625
 626 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 627 {
 628     if ( m_windowVariant != variant )
 629     {
 630         m_windowVariant = variant;
 631
 632         DoSetWindowVariant(variant);
 633     }
 634 }
 635
 636 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
 637 {
 638     // adjust the font height to correspond to our new variant (notice that
 639     // we're only called if something really changed)
 640     wxFont font = GetFont();
 641     int size = font.GetPointSize();
 642     switch ( variant )
 643     {
 644         case wxWINDOW_VARIANT_NORMAL:
 645             break;
 646
 647         case wxWINDOW_VARIANT_SMALL:
 648             size *= 3;
 649             size /= 4;
 650             break;
 651
 652         case wxWINDOW_VARIANT_MINI:
 653             size *= 2;
 654             size /= 3;
 655             break;
 656
 657         case wxWINDOW_VARIANT_LARGE:
 658             size *= 5;
 659             size /= 4;
 660             break;
 661
 662         default:
 663             wxFAIL_MSG(_T("unexpected window variant"));
 664             break;
 665     }
 666
 667     font.SetPointSize(size);
 668     SetFont(font);
 669 }
 670
 671 void wxWindowBase::DoSetSizeHints( int minW, int minH,
 672                                    int maxW, int maxH,
 673                                    int WXUNUSED(incW), int WXUNUSED(incH) )
 674 {
 675     wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
 676                     (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
 677                  _T("min width/height must be less than max width/height!") );
 678
 679     m_minWidth = minW;
 680     m_maxWidth = maxW;
 681     m_minHeight = minH;
 682     m_maxHeight = maxH;
 683 }
 684
 685
 686 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
 687                                         int maxW, int maxH )
 688 {
 689     m_minVirtualWidth = minW;
 690     m_maxVirtualWidth = maxW;
 691     m_minVirtualHeight = minH;
 692     m_maxVirtualHeight = maxH;
 693 }
 694
 695 void wxWindowBase::DoSetVirtualSize( int x, int y )
 696 {
 697     if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
 698         x = m_minVirtualWidth;
 699     if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
 700         x = m_maxVirtualWidth;
 701     if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
 702         y = m_minVirtualHeight;
 703     if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
 704         y = m_maxVirtualHeight;
 705
 706     m_virtualSize = wxSize(x, y);
 707 }
 708
 709 wxSize wxWindowBase::DoGetVirtualSize() const
 710 {
 711     // we should use the entire client area so if it is greater than our
 712     // virtual size, expand it to fit (otherwise if the window is big enough we
 713     // wouldn't be using parts of it)
 714     wxSize size = GetClientSize();
 715     if ( m_virtualSize.x > size.x )
 716         size.x = m_virtualSize.x;
 717
 718     if ( m_virtualSize.y >= size.y )
 719         size.y = m_virtualSize.y;
 720
 721     return size;
 722 }
 723
 724 void wxWindowBase::DoGetScreenPosition(int *x, int *y) const
 725 {
 726     // screen position is the same as (0, 0) in client coords for non TLWs (and
 727     // TLWs override this method)
 728     if ( x )
 729         *x = 0;
 730     if ( y )
 731         *y = 0;
 732
 733     ClientToScreen(x, y);
 734 }
 735
 736 // ----------------------------------------------------------------------------
 737 // show/hide/enable/disable the window
 738 // ----------------------------------------------------------------------------
 739
 740 bool wxWindowBase::Show(bool show)
 741 {
 742     if ( show != m_isShown )
 743     {
 744         m_isShown = show;
 745
 746         return true;
 747     }
 748     else
 749     {
 750         return false;
 751     }
 752 }
 753
 754 bool wxWindowBase::Enable(bool enable)
 755 {
 756     if ( enable != m_isEnabled )
 757     {
 758         m_isEnabled = enable;
 759
 760         return true;
 761     }
 762     else
 763     {
 764         return false;
 765     }
 766 }
 767
 768 bool wxWindowBase::IsShownOnScreen() const
 769 {
 770     return IsShown() &&
 771            (GetParent() == NULL || GetParent()->IsShownOnScreen());
 772 }
 773
 774 // ----------------------------------------------------------------------------
 775 // RTTI
 776 // ----------------------------------------------------------------------------
 777
 778 bool wxWindowBase::IsTopLevel() const
 779 {
 780     return false;
 781 }
 782
 783 // ----------------------------------------------------------------------------
 784 // reparenting the window
 785 // ----------------------------------------------------------------------------
 786
 787 void wxWindowBase::AddChild(wxWindowBase *child)
 788 {
 789     wxCHECK_RET( child, wxT("can't add a NULL child") );
 790
 791     // this should never happen and it will lead to a crash later if it does
 792     // because RemoveChild() will remove only one node from the children list
 793     // and the other(s) one(s) will be left with dangling pointers in them
 794     wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
 795
 796     GetChildren().Append((wxWindow*)child);
 797     child->SetParent(this);
 798 }
 799
 800 void wxWindowBase::RemoveChild(wxWindowBase *child)
 801 {
 802     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 803
 804     GetChildren().DeleteObject((wxWindow *)child);
 805     child->SetParent(NULL);
 806 }
 807
 808 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 809 {
 810     wxWindow *oldParent = GetParent();
 811     if ( newParent == oldParent )
 812     {
 813         // nothing done
 814         return false;
 815     }
 816
 817     // unlink this window from the existing parent.
 818     if ( oldParent )
 819     {
 820         oldParent->RemoveChild(this);
 821     }
 822     else
 823     {
 824         wxTopLevelWindows.DeleteObject((wxWindow *)this);
 825     }
 826
 827     // add it to the new one
 828     if ( newParent )
 829     {
 830         newParent->AddChild(this);
 831     }
 832     else
 833     {
 834         wxTopLevelWindows.Append((wxWindow *)this);
 835     }
 836
 837     return true;
 838 }
 839
 840 // ----------------------------------------------------------------------------
 841 // event handler stuff
 842 // ----------------------------------------------------------------------------
 843
 844 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
 845 {
 846     wxEvtHandler *handlerOld = GetEventHandler();
 847
 848     handler->SetNextHandler(handlerOld);
 849
 850     if ( handlerOld )
 851         GetEventHandler()->SetPreviousHandler(handler);
 852
 853     SetEventHandler(handler);
 854 }
 855
 856 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 857 {
 858     wxEvtHandler *handlerA = GetEventHandler();
 859     if ( handlerA )
 860     {
 861         wxEvtHandler *handlerB = handlerA->GetNextHandler();
 862         handlerA->SetNextHandler((wxEvtHandler *)NULL);
 863
 864         if ( handlerB )
 865             handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
 866         SetEventHandler(handlerB);
 867
 868         if ( deleteHandler )
 869         {
 870             delete handlerA;
 871             handlerA = (wxEvtHandler *)NULL;
 872         }
 873     }
 874
 875     return handlerA;
 876 }
 877
 878 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
 879 {
 880     wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
 881
 882     wxEvtHandler *handlerPrev = NULL,
 883                  *handlerCur = GetEventHandler();
 884     while ( handlerCur )
 885     {
 886         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 887
 888         if ( handlerCur == handler )
 889         {
 890             if ( handlerPrev )
 891             {
 892                 handlerPrev->SetNextHandler(handlerNext);
 893             }
 894             else
 895             {
 896                 SetEventHandler(handlerNext);
 897             }
 898
 899             if ( handlerNext )
 900             {
 901                 handlerNext->SetPreviousHandler ( handlerPrev );
 902             }
 903
 904             handler->SetNextHandler(NULL);
 905             handler->SetPreviousHandler(NULL);
 906
 907             return true;
 908         }
 909
 910         handlerPrev = handlerCur;
 911         handlerCur = handlerNext;
 912     }
 913
 914     wxFAIL_MSG( _T("where has the event handler gone?") );
 915
 916     return false;
 917 }
 918
 919 // ----------------------------------------------------------------------------
 920 // colours, fonts &c
 921 // ----------------------------------------------------------------------------
 922
 923 void wxWindowBase::InheritAttributes()
 924 {
 925     const wxWindowBase * const parent = GetParent();
 926     if ( !parent )
 927         return;
 928
 929     // we only inherit attributes which had been explicitly set for the parent
 930     // which ensures that this only happens if the user really wants it and
 931     // not by default which wouldn't make any sense in modern GUIs where the
 932     // controls don't all use the same fonts (nor colours)
 933     if ( parent->m_inheritFont && !m_hasFont )
 934         SetFont(parent->GetFont());
 935
 936     // in addition, there is a possibility to explicitly forbid inheriting
 937     // colours at each class level by overriding ShouldInheritColours()
 938     if ( ShouldInheritColours() )
 939     {
 940         if ( parent->m_inheritFgCol && !m_hasFgCol )
 941             SetForegroundColour(parent->GetForegroundColour());
 942
 943         // inheriting (solid) background colour is wrong as it totally breaks
 944         // any kind of themed backgrounds
 945         //
 946         // instead, the controls should use the same background as their parent
 947         // (ideally by not drawing it at all)
 948 #if 0
 949         if ( parent->m_inheritBgCol && !m_hasBgCol )
 950             SetBackgroundColour(parent->GetBackgroundColour());
 951 #endif // 0
 952     }
 953 }
 954
 955 /* static */ wxVisualAttributes
 956 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 957 {
 958     // it is important to return valid values for all attributes from here,
 959     // GetXXX() below rely on this
 960     wxVisualAttributes attrs;
 961     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 962     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
 963
 964     // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
 965     // the usual background colour than wxSYS_COLOUR_BTNFACE.
 966     // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
 967     // colour on other platforms.
 968
 969 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
 970     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
 971 #else
 972     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
 973 #endif
 974     return attrs;
 975 }
 976
 977 wxColour wxWindowBase::GetBackgroundColour() const
 978 {
 979     if ( !m_backgroundColour.Ok() )
 980     {
 981         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
 982
 983         // get our default background colour
 984         wxColour colBg = GetDefaultAttributes().colBg;
 985
 986         // we must return some valid colour to avoid redoing this every time
 987         // and also to avoid surprizing the applications written for older
 988         // wxWidgets versions where GetBackgroundColour() always returned
 989         // something -- so give them something even if it doesn't make sense
 990         // for this window (e.g. it has a themed background)
 991         if ( !colBg.Ok() )
 992             colBg = GetClassDefaultAttributes().colBg;
 993
 994         return colBg;
 995     }
 996     else
 997         return m_backgroundColour;
 998 }
 999
1000 wxColour wxWindowBase::GetForegroundColour() const
1001 {
1002     // logic is the same as above
1003     if ( !m_hasFgCol && !m_foregroundColour.Ok() )
1004     {
1005         wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
1006
1007         wxColour colFg = GetDefaultAttributes().colFg;
1008
1009         if ( !colFg.Ok() )
1010             colFg = GetClassDefaultAttributes().colFg;
1011
1012         return colFg;
1013     }
1014     else
1015         return m_foregroundColour;
1016 }
1017
1018 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
1019 {
1020     if ( colour == m_backgroundColour )
1021         return false;
1022
1023     m_hasBgCol = colour.Ok();
1024     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
1025         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
1026
1027     m_inheritBgCol = m_hasBgCol;
1028     m_backgroundColour = colour;
1029     SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1030     return true;
1031 }
1032
1033 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1034 {
1035     if (colour == m_foregroundColour )
1036         return false;
1037
1038     m_hasFgCol = colour.Ok();
1039     m_inheritFgCol = m_hasFgCol;
1040     m_foregroundColour = colour;
1041     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1042     return true;
1043 }
1044
1045 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1046 {
1047     // setting an invalid cursor is ok, it means that we don't have any special
1048     // cursor
1049     if ( m_cursor.IsSameAs(cursor) )
1050     {
1051         // no change
1052         return false;
1053     }
1054
1055     m_cursor = cursor;
1056
1057     return true;
1058 }
1059
1060 wxFont wxWindowBase::GetFont() const
1061 {
1062     // logic is the same as in GetBackgroundColour()
1063     if ( !m_font.Ok() )
1064     {
1065         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1066
1067         wxFont font = GetDefaultAttributes().font;
1068         if ( !font.Ok() )
1069             font = GetClassDefaultAttributes().font;
1070
1071         return font;
1072     }
1073     else
1074         return m_font;
1075 }
1076
1077 bool wxWindowBase::SetFont(const wxFont& font)
1078 {
1079     if ( font == m_font )
1080     {
1081         // no change
1082         return false;
1083     }
1084
1085     m_font = font;
1086     m_hasFont = font.Ok();
1087     m_inheritFont = m_hasFont;
1088
1089     InvalidateBestSize();
1090
1091     return true;
1092 }
1093
1094 #if wxUSE_PALETTE
1095
1096 void wxWindowBase::SetPalette(const wxPalette& pal)
1097 {
1098     m_hasCustomPalette = true;
1099     m_palette = pal;
1100
1101     // VZ: can anyone explain me what do we do here?
1102     wxWindowDC d((wxWindow *) this);
1103     d.SetPalette(pal);
1104 }
1105
1106 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1107 {
1108     wxWindow *win = (wxWindow *)this;
1109     while ( win && !win->HasCustomPalette() )
1110     {
1111         win = win->GetParent();
1112     }
1113
1114     return win;
1115 }
1116
1117 #endif // wxUSE_PALETTE
1118
1119 #if wxUSE_CARET
1120 void wxWindowBase::SetCaret(wxCaret *caret)
1121 {
1122     if ( m_caret )
1123     {
1124         delete m_caret;
1125     }
1126
1127     m_caret = caret;
1128
1129     if ( m_caret )
1130     {
1131         wxASSERT_MSG( m_caret->GetWindow() == this,
1132                       wxT("caret should be created associated to this window") );
1133     }
1134 }
1135 #endif // wxUSE_CARET
1136
1137 #if wxUSE_VALIDATORS
1138 // ----------------------------------------------------------------------------
1139 // validators
1140 // ----------------------------------------------------------------------------
1141
1142 void wxWindowBase::SetValidator(const wxValidator& validator)
1143 {
1144     if ( m_windowValidator )
1145         delete m_windowValidator;
1146
1147     m_windowValidator = (wxValidator *)validator.Clone();
1148
1149     if ( m_windowValidator )
1150         m_windowValidator->SetWindow(this);
1151 }
1152 #endif // wxUSE_VALIDATORS
1153
1154 // ----------------------------------------------------------------------------
1155 // update region stuff
1156 // ----------------------------------------------------------------------------
1157
1158 wxRect wxWindowBase::GetUpdateClientRect() const
1159 {
1160     wxRegion rgnUpdate = GetUpdateRegion();
1161     rgnUpdate.Intersect(GetClientRect());
1162     wxRect rectUpdate = rgnUpdate.GetBox();
1163     wxPoint ptOrigin = GetClientAreaOrigin();
1164     rectUpdate.x -= ptOrigin.x;
1165     rectUpdate.y -= ptOrigin.y;
1166
1167     return rectUpdate;
1168 }
1169
1170 bool wxWindowBase::DoIsExposed(int x, int y) const
1171 {
1172     return m_updateRegion.Contains(x, y) != wxOutRegion;
1173 }
1174
1175 bool wxWindowBase::DoIsExposed(int x, int y, int w, int h) const
1176 {
1177     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1178 }
1179
1180 void wxWindowBase::ClearBackground()
1181 {
1182     // wxGTK uses its own version, no need to add never used code
1183 #ifndef __WXGTK__
1184     wxClientDC dc((wxWindow *)this);
1185     wxBrush brush(GetBackgroundColour(), wxSOLID);
1186     dc.SetBackground(brush);
1187     dc.Clear();
1188 #endif // __WXGTK__
1189 }
1190
1191 // ----------------------------------------------------------------------------
1192 // find child window by id or name
1193 // ----------------------------------------------------------------------------
1194
1195 wxWindow *wxWindowBase::FindWindow(long id) const
1196 {
1197     if ( id == m_windowId )
1198         return (wxWindow *)this;
1199
1200     wxWindowBase *res = (wxWindow *)NULL;
1201     wxWindowList::compatibility_iterator node;
1202     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1203     {
1204         wxWindowBase *child = node->GetData();
1205         res = child->FindWindow( id );
1206     }
1207
1208     return (wxWindow *)res;
1209 }
1210
1211 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1212 {
1213     if ( name == m_windowName )
1214         return (wxWindow *)this;
1215
1216     wxWindowBase *res = (wxWindow *)NULL;
1217     wxWindowList::compatibility_iterator node;
1218     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1219     {
1220         wxWindow *child = node->GetData();
1221         res = child->FindWindow(name);
1222     }
1223
1224     return (wxWindow *)res;
1225 }
1226
1227
1228 // find any window by id or name or label: If parent is non-NULL, look through
1229 // children for a label or title matching the specified string. If NULL, look
1230 // through all top-level windows.
1231 //
1232 // to avoid duplicating code we reuse the same helper function but with
1233 // different comparators
1234
1235 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1236                                 const wxString& label, long id);
1237
1238 static
1239 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1240                            long WXUNUSED(id))
1241 {
1242     return win->GetLabel() == label;
1243 }
1244
1245 static
1246 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1247                           long WXUNUSED(id))
1248 {
1249     return win->GetName() == label;
1250 }
1251
1252 static
1253 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1254                         long id)
1255 {
1256     return win->GetId() == id;
1257 }
1258
1259 // recursive helper for the FindWindowByXXX() functions
1260 static
1261 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1262                                   const wxString& label,
1263                                   long id,
1264                                   wxFindWindowCmp cmp)
1265 {
1266     if ( parent )
1267     {
1268         // see if this is the one we're looking for
1269         if ( (*cmp)(parent, label, id) )
1270             return (wxWindow *)parent;
1271
1272         // It wasn't, so check all its children
1273         for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1274               node;
1275               node = node->GetNext() )
1276         {
1277             // recursively check each child
1278             wxWindow *win = (wxWindow *)node->GetData();
1279             wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1280             if (retwin)
1281                 return retwin;
1282         }
1283     }
1284
1285     // Not found
1286     return NULL;
1287 }
1288
1289 // helper for FindWindowByXXX()
1290 static
1291 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1292                              const wxString& label,
1293                              long id,
1294                              wxFindWindowCmp cmp)
1295 {
1296     if ( parent )
1297     {
1298         // just check parent and all its children
1299         return wxFindWindowRecursively(parent, label, id, cmp);
1300     }
1301
1302     // start at very top of wx's windows
1303     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1304           node;
1305           node = node->GetNext() )
1306     {
1307         // recursively check each window & its children
1308         wxWindow *win = node->GetData();
1309         wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1310         if (retwin)
1311             return retwin;
1312     }
1313
1314     return NULL;
1315 }
1316
1317 /* static */
1318 wxWindow *
1319 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1320 {
1321     return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1322 }
1323
1324 /* static */
1325 wxWindow *
1326 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1327 {
1328     wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1329
1330     if ( !win )
1331     {
1332         // fall back to the label
1333         win = FindWindowByLabel(title, parent);
1334     }
1335
1336     return win;
1337 }
1338
1339 /* static */
1340 wxWindow *
1341 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1342 {
1343     return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1344 }
1345
1346 // ----------------------------------------------------------------------------
1347 // dialog oriented functions
1348 // ----------------------------------------------------------------------------
1349
1350 void wxWindowBase::MakeModal(bool modal)
1351 {
1352     // Disable all other windows
1353     if ( IsTopLevel() )
1354     {
1355         wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1356         while (node)
1357         {
1358             wxWindow *win = node->GetData();
1359             if (win != this)
1360                 win->Enable(!modal);
1361
1362             node = node->GetNext();
1363         }
1364     }
1365 }
1366
1367 bool wxWindowBase::Validate()
1368 {
1369 #if wxUSE_VALIDATORS
1370     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1371
1372     wxWindowList::compatibility_iterator node;
1373     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1374     {
1375         wxWindowBase *child = node->GetData();
1376         wxValidator *validator = child->GetValidator();
1377         if ( validator && !validator->Validate((wxWindow *)this) )
1378         {
1379             return false;
1380         }
1381
1382         if ( recurse && !child->Validate() )
1383         {
1384             return false;
1385         }
1386     }
1387 #endif // wxUSE_VALIDATORS
1388
1389     return true;
1390 }
1391
1392 bool wxWindowBase::TransferDataToWindow()
1393 {
1394 #if wxUSE_VALIDATORS
1395     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1396
1397     wxWindowList::compatibility_iterator node;
1398     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1399     {
1400         wxWindowBase *child = node->GetData();
1401         wxValidator *validator = child->GetValidator();
1402         if ( validator && !validator->TransferToWindow() )
1403         {
1404             wxLogWarning(_("Could not transfer data to window"));
1405 #if wxUSE_LOG
1406             wxLog::FlushActive();
1407 #endif // wxUSE_LOG
1408
1409             return false;
1410         }
1411
1412         if ( recurse )
1413         {
1414             if ( !child->TransferDataToWindow() )
1415             {
1416                 // warning already given
1417                 return false;
1418             }
1419         }
1420     }
1421 #endif // wxUSE_VALIDATORS
1422
1423     return true;
1424 }
1425
1426 bool wxWindowBase::TransferDataFromWindow()
1427 {
1428 #if wxUSE_VALIDATORS
1429     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1430
1431     wxWindowList::compatibility_iterator node;
1432     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1433     {
1434         wxWindow *child = node->GetData();
1435         wxValidator *validator = child->GetValidator();
1436         if ( validator && !validator->TransferFromWindow() )
1437         {
1438             // nop warning here because the application is supposed to give
1439             // one itself - we don't know here what might have gone wrongly
1440
1441             return false;
1442         }
1443
1444         if ( recurse )
1445         {
1446             if ( !child->TransferDataFromWindow() )
1447             {
1448                 // warning already given
1449                 return false;
1450             }
1451         }
1452     }
1453 #endif // wxUSE_VALIDATORS
1454
1455     return true;
1456 }
1457
1458 void wxWindowBase::InitDialog()
1459 {
1460     wxInitDialogEvent event(GetId());
1461     event.SetEventObject( this );
1462     GetEventHandler()->ProcessEvent(event);
1463 }
1464
1465 // ----------------------------------------------------------------------------
1466 // context-sensitive help support
1467 // ----------------------------------------------------------------------------
1468
1469 #if wxUSE_HELP
1470
1471 // associate this help text with this window
1472 void wxWindowBase::SetHelpText(const wxString& text)
1473 {
1474     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1475     if ( helpProvider )
1476     {
1477         helpProvider->AddHelp(this, text);
1478     }
1479 }
1480
1481 // associate this help text with all windows with the same id as this
1482 // one
1483 void wxWindowBase::SetHelpTextForId(const wxString& text)
1484 {
1485     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1486     if ( helpProvider )
1487     {
1488         helpProvider->AddHelp(GetId(), text);
1489     }
1490 }
1491
1492 // get the help string associated with this window (may be empty)
1493 // default implementation forwards calls to the help provider
1494 wxString
1495 wxWindowBase::GetHelpTextAtPoint(const wxPoint & WXUNUSED(pt),
1496                                  wxHelpEvent::Origin WXUNUSED(origin)) const
1497 {
1498     wxString text;
1499     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1500     if ( helpProvider )
1501     {
1502         text = helpProvider->GetHelp(this);
1503     }
1504
1505     return text;
1506 }
1507
1508 // show help for this window
1509 void wxWindowBase::OnHelp(wxHelpEvent& event)
1510 {
1511     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1512     if ( helpProvider )
1513     {
1514         if ( helpProvider->ShowHelpAtPoint(this, event.GetPosition(), event.GetOrigin()) )
1515         {
1516             // skip the event.Skip() below
1517             return;
1518         }
1519     }
1520
1521     event.Skip();
1522 }
1523
1524 #endif // wxUSE_HELP
1525
1526 // ----------------------------------------------------------------------------
1527 // tooltips
1528 // ----------------------------------------------------------------------------
1529
1530 #if wxUSE_TOOLTIPS
1531
1532 void wxWindowBase::SetToolTip( const wxString &tip )
1533 {
1534     // don't create the new tooltip if we already have one
1535     if ( m_tooltip )
1536     {
1537         m_tooltip->SetTip( tip );
1538     }
1539     else
1540     {
1541         SetToolTip( new wxToolTip( tip ) );
1542     }
1543
1544     // setting empty tooltip text does not remove the tooltip any more - use
1545     // SetToolTip((wxToolTip *)NULL) for this
1546 }
1547
1548 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1549 {
1550     if ( m_tooltip != tooltip )
1551     {
1552         if ( m_tooltip )
1553             delete m_tooltip;
1554
1555         m_tooltip = tooltip;
1556     }
1557 }
1558
1559 #endif // wxUSE_TOOLTIPS
1560
1561 // ----------------------------------------------------------------------------
1562 // constraints and sizers
1563 // ----------------------------------------------------------------------------
1564
1565 #if wxUSE_CONSTRAINTS
1566
1567 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1568 {
1569     if ( m_constraints )
1570     {
1571         UnsetConstraints(m_constraints);
1572         delete m_constraints;
1573     }
1574     m_constraints = constraints;
1575     if ( m_constraints )
1576     {
1577         // Make sure other windows know they're part of a 'meaningful relationship'
1578         if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1579             m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1580         if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1581             m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1582         if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1583             m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1584         if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1585             m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1586         if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1587             m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1588         if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1589             m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1590         if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1591             m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1592         if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1593             m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1594     }
1595 }
1596
1597 // This removes any dangling pointers to this window in other windows'
1598 // constraintsInvolvedIn lists.
1599 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1600 {
1601     if ( c )
1602     {
1603         if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1604             c->left.GetOtherWindow()->RemoveConstraintReference(this);
1605         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1606             c->top.GetOtherWindow()->RemoveConstraintReference(this);
1607         if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1608             c->right.GetOtherWindow()->RemoveConstraintReference(this);
1609         if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1610             c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1611         if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1612             c->width.GetOtherWindow()->RemoveConstraintReference(this);
1613         if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1614             c->height.GetOtherWindow()->RemoveConstraintReference(this);
1615         if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1616             c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1617         if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1618             c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1619     }
1620 }
1621
1622 // Back-pointer to other windows we're involved with, so if we delete this
1623 // window, we must delete any constraints we're involved with.
1624 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1625 {
1626     if ( !m_constraintsInvolvedIn )
1627         m_constraintsInvolvedIn = new wxWindowList;
1628     if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1629         m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1630 }
1631
1632 // REMOVE back-pointer to other windows we're involved with.
1633 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1634 {
1635     if ( m_constraintsInvolvedIn )
1636         m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1637 }
1638
1639 // Reset any constraints that mention this window
1640 void wxWindowBase::DeleteRelatedConstraints()
1641 {
1642     if ( m_constraintsInvolvedIn )
1643     {
1644         wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1645         while (node)
1646         {
1647             wxWindow *win = node->GetData();
1648             wxLayoutConstraints *constr = win->GetConstraints();
1649
1650             // Reset any constraints involving this window
1651             if ( constr )
1652             {
1653                 constr->left.ResetIfWin(this);
1654                 constr->top.ResetIfWin(this);
1655                 constr->right.ResetIfWin(this);
1656                 constr->bottom.ResetIfWin(this);
1657                 constr->width.ResetIfWin(this);
1658                 constr->height.ResetIfWin(this);
1659                 constr->centreX.ResetIfWin(this);
1660                 constr->centreY.ResetIfWin(this);
1661             }
1662
1663             wxWindowList::compatibility_iterator next = node->GetNext();
1664             m_constraintsInvolvedIn->Erase(node);
1665             node = next;
1666         }
1667
1668         delete m_constraintsInvolvedIn;
1669         m_constraintsInvolvedIn = (wxWindowList *) NULL;
1670     }
1671 }
1672
1673 #endif // wxUSE_CONSTRAINTS
1674
1675 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1676 {
1677     if ( sizer == m_windowSizer)
1678         return;
1679
1680     if ( m_windowSizer )
1681     {
1682         m_windowSizer->SetContainingWindow(NULL);
1683
1684         if ( deleteOld )
1685             delete m_windowSizer;
1686     }
1687
1688     m_windowSizer = sizer;
1689     if ( m_windowSizer )
1690     {
1691         m_windowSizer->SetContainingWindow((wxWindow *)this);
1692     }
1693
1694     SetAutoLayout(m_windowSizer != NULL);
1695 }
1696
1697 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1698 {
1699     SetSizer( sizer, deleteOld );
1700     sizer->SetSizeHints( (wxWindow*) this );
1701 }
1702
1703
1704 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1705 {
1706     // adding a window to a sizer twice is going to result in fatal and
1707     // hard to debug problems later because when deleting the second
1708     // associated wxSizerItem we're going to dereference a dangling
1709     // pointer; so try to detect this as early as possible
1710     wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1711                   _T("Adding a window to the same sizer twice?") );
1712
1713     m_containingSizer = sizer;
1714 }
1715
1716 #if wxUSE_CONSTRAINTS
1717
1718 void wxWindowBase::SatisfyConstraints()
1719 {
1720     wxLayoutConstraints *constr = GetConstraints();
1721     bool wasOk = constr && constr->AreSatisfied();
1722
1723     ResetConstraints();   // Mark all constraints as unevaluated
1724
1725     int noChanges = 1;
1726
1727     // if we're a top level panel (i.e. our parent is frame/dialog), our
1728     // own constraints will never be satisfied any more unless we do it
1729     // here
1730     if ( wasOk )
1731     {
1732         while ( noChanges > 0 )
1733         {
1734             LayoutPhase1(&noChanges);
1735         }
1736     }
1737
1738     LayoutPhase2(&noChanges);
1739 }
1740
1741 #endif // wxUSE_CONSTRAINTS
1742
1743 bool wxWindowBase::Layout()
1744 {
1745     // If there is a sizer, use it instead of the constraints
1746     if ( GetSizer() )
1747     {
1748         int w = 0, h = 0;
1749         GetVirtualSize(&w, &h);
1750         GetSizer()->SetDimension( 0, 0, w, h );
1751     }
1752 #if wxUSE_CONSTRAINTS
1753     else
1754     {
1755         SatisfyConstraints(); // Find the right constraints values
1756         SetConstraintSizes(); // Recursively set the real window sizes
1757     }
1758 #endif
1759
1760     return true;
1761 }
1762
1763 #if wxUSE_CONSTRAINTS
1764
1765 // first phase of the constraints evaluation: set our own constraints
1766 bool wxWindowBase::LayoutPhase1(int *noChanges)
1767 {
1768     wxLayoutConstraints *constr = GetConstraints();
1769
1770     return !constr || constr->SatisfyConstraints(this, noChanges);
1771 }
1772
1773 // second phase: set the constraints for our children
1774 bool wxWindowBase::LayoutPhase2(int *noChanges)
1775 {
1776     *noChanges = 0;
1777
1778     // Layout children
1779     DoPhase(1);
1780
1781     // Layout grand children
1782     DoPhase(2);
1783
1784     return true;
1785 }
1786
1787 // Do a phase of evaluating child constraints
1788 bool wxWindowBase::DoPhase(int phase)
1789 {
1790     // the list containing the children for which the constraints are already
1791     // set correctly
1792     wxWindowList succeeded;
1793
1794     // the max number of iterations we loop before concluding that we can't set
1795     // the constraints
1796     static const int maxIterations = 500;
1797
1798     for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1799     {
1800         int noChanges = 0;
1801
1802         // loop over all children setting their constraints
1803         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1804               node;
1805               node = node->GetNext() )
1806         {
1807             wxWindow *child = node->GetData();
1808             if ( child->IsTopLevel() )
1809             {
1810                 // top level children are not inside our client area
1811                 continue;
1812             }
1813
1814             if ( !child->GetConstraints() || succeeded.Find(child) )
1815             {
1816                 // this one is either already ok or nothing we can do about it
1817                 continue;
1818             }
1819
1820             int tempNoChanges = 0;
1821             bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1822                                       : child->LayoutPhase2(&tempNoChanges);
1823             noChanges += tempNoChanges;
1824
1825             if ( success )
1826             {
1827                 succeeded.Append(child);
1828             }
1829         }
1830
1831         if ( !noChanges )
1832         {
1833             // constraints are set
1834             break;
1835         }
1836     }
1837
1838     return true;
1839 }
1840
1841 void wxWindowBase::ResetConstraints()
1842 {
1843     wxLayoutConstraints *constr = GetConstraints();
1844     if ( constr )
1845     {
1846         constr->left.SetDone(false);
1847         constr->top.SetDone(false);
1848         constr->right.SetDone(false);
1849         constr->bottom.SetDone(false);
1850         constr->width.SetDone(false);
1851         constr->height.SetDone(false);
1852         constr->centreX.SetDone(false);
1853         constr->centreY.SetDone(false);
1854     }
1855
1856     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1857     while (node)
1858     {
1859         wxWindow *win = node->GetData();
1860         if ( !win->IsTopLevel() )
1861             win->ResetConstraints();
1862         node = node->GetNext();
1863     }
1864 }
1865
1866 // Need to distinguish between setting the 'fake' size for windows and sizers,
1867 // and setting the real values.
1868 void wxWindowBase::SetConstraintSizes(bool recurse)
1869 {
1870     wxLayoutConstraints *constr = GetConstraints();
1871     if ( constr && constr->AreSatisfied() )
1872     {
1873         int x = constr->left.GetValue();
1874         int y = constr->top.GetValue();
1875         int w = constr->width.GetValue();
1876         int h = constr->height.GetValue();
1877
1878         if ( (constr->width.GetRelationship() != wxAsIs ) ||
1879              (constr->height.GetRelationship() != wxAsIs) )
1880         {
1881             SetSize(x, y, w, h);
1882         }
1883         else
1884         {
1885             // If we don't want to resize this window, just move it...
1886             Move(x, y);
1887         }
1888     }
1889     else if ( constr )
1890     {
1891         wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1892                    GetClassInfo()->GetClassName(),
1893                    GetName().c_str());
1894     }
1895
1896     if ( recurse )
1897     {
1898         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1899         while (node)
1900         {
1901             wxWindow *win = node->GetData();
1902             if ( !win->IsTopLevel() && win->GetConstraints() )
1903                 win->SetConstraintSizes();
1904             node = node->GetNext();
1905         }
1906     }
1907 }
1908
1909 // Only set the size/position of the constraint (if any)
1910 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1911 {
1912     wxLayoutConstraints *constr = GetConstraints();
1913     if ( constr )
1914     {
1915         if ( x != wxDefaultCoord )
1916         {
1917             constr->left.SetValue(x);
1918             constr->left.SetDone(true);
1919         }
1920         if ( y != wxDefaultCoord )
1921         {
1922             constr->top.SetValue(y);
1923             constr->top.SetDone(true);
1924         }
1925         if ( w != wxDefaultCoord )
1926         {
1927             constr->width.SetValue(w);
1928             constr->width.SetDone(true);
1929         }
1930         if ( h != wxDefaultCoord )
1931         {
1932             constr->height.SetValue(h);
1933             constr->height.SetDone(true);
1934         }
1935     }
1936 }
1937
1938 void wxWindowBase::MoveConstraint(int x, int y)
1939 {
1940     wxLayoutConstraints *constr = GetConstraints();
1941     if ( constr )
1942     {
1943         if ( x != wxDefaultCoord )
1944         {
1945             constr->left.SetValue(x);
1946             constr->left.SetDone(true);
1947         }
1948         if ( y != wxDefaultCoord )
1949         {
1950             constr->top.SetValue(y);
1951             constr->top.SetDone(true);
1952         }
1953     }
1954 }
1955
1956 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
1957 {
1958     wxLayoutConstraints *constr = GetConstraints();
1959     if ( constr )
1960     {
1961         *w = constr->width.GetValue();
1962         *h = constr->height.GetValue();
1963     }
1964     else
1965         GetSize(w, h);
1966 }
1967
1968 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
1969 {
1970     wxLayoutConstraints *constr = GetConstraints();
1971     if ( constr )
1972     {
1973         *w = constr->width.GetValue();
1974         *h = constr->height.GetValue();
1975     }
1976     else
1977         GetClientSize(w, h);
1978 }
1979
1980 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
1981 {
1982     wxLayoutConstraints *constr = GetConstraints();
1983     if ( constr )
1984     {
1985         *x = constr->left.GetValue();
1986         *y = constr->top.GetValue();
1987     }
1988     else
1989         GetPosition(x, y);
1990 }
1991
1992 #endif // wxUSE_CONSTRAINTS
1993
1994 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
1995 {
1996     // don't do it for the dialogs/frames - they float independently of their
1997     // parent
1998     if ( !IsTopLevel() )
1999     {
2000         wxWindow *parent = GetParent();
2001         if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
2002         {
2003             wxPoint pt(parent->GetClientAreaOrigin());
2004             x += pt.x;
2005             y += pt.y;
2006         }
2007     }
2008 }
2009
2010 // ----------------------------------------------------------------------------
2011 // Update UI processing
2012 // ----------------------------------------------------------------------------
2013
2014 void wxWindowBase::UpdateWindowUI(long flags)
2015 {
2016     wxUpdateUIEvent event(GetId());
2017     event.SetEventObject(this);
2018
2019     if ( GetEventHandler()->ProcessEvent(event) )
2020     {
2021         DoUpdateWindowUI(event);
2022     }
2023
2024     if (flags & wxUPDATE_UI_RECURSE)
2025     {
2026         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2027         while (node)
2028         {
2029             wxWindow* child = (wxWindow*) node->GetData();
2030             child->UpdateWindowUI(flags);
2031             node = node->GetNext();
2032         }
2033     }
2034 }
2035
2036 // do the window-specific processing after processing the update event
2037 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2038 {
2039     if ( event.GetSetEnabled() )
2040         Enable(event.GetEnabled());
2041
2042     if ( event.GetSetShown() )
2043         Show(event.GetShown());
2044 }
2045
2046 // ----------------------------------------------------------------------------
2047 // dialog units translations
2048 // ----------------------------------------------------------------------------
2049
2050 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2051 {
2052     int charWidth = GetCharWidth();
2053     int charHeight = GetCharHeight();
2054     wxPoint pt2 = wxDefaultPosition;
2055     if (pt.x != wxDefaultCoord)
2056         pt2.x = (int) ((pt.x * 4) / charWidth);
2057     if (pt.y != wxDefaultCoord)
2058         pt2.y = (int) ((pt.y * 8) / charHeight);
2059
2060     return pt2;
2061 }
2062
2063 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2064 {
2065     int charWidth = GetCharWidth();
2066     int charHeight = GetCharHeight();
2067     wxPoint pt2 = wxDefaultPosition;
2068     if (pt.x != wxDefaultCoord)
2069         pt2.x = (int) ((pt.x * charWidth) / 4);
2070     if (pt.y != wxDefaultCoord)
2071         pt2.y = (int) ((pt.y * charHeight) / 8);
2072
2073     return pt2;
2074 }
2075
2076 // ----------------------------------------------------------------------------
2077 // event handlers
2078 // ----------------------------------------------------------------------------
2079
2080 // propagate the colour change event to the subwindows
2081 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2082 {
2083     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2084     while ( node )
2085     {
2086         // Only propagate to non-top-level windows
2087         wxWindow *win = node->GetData();
2088         if ( !win->IsTopLevel() )
2089         {
2090             wxSysColourChangedEvent event2;
2091             event.SetEventObject(win);
2092             win->GetEventHandler()->ProcessEvent(event2);
2093         }
2094
2095         node = node->GetNext();
2096     }
2097
2098     Refresh();
2099 }
2100
2101 // the default action is to populate dialog with data when it's created,
2102 // and nudge the UI into displaying itself correctly in case
2103 // we've turned the wxUpdateUIEvents frequency down low.
2104 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2105 {
2106     TransferDataToWindow();
2107
2108     // Update the UI at this point
2109     UpdateWindowUI(wxUPDATE_UI_RECURSE);
2110 }
2111
2112 // methods for drawing the sizers in a visible way
2113 #ifdef __WXDEBUG__
2114
2115 static void DrawSizers(wxWindowBase *win);
2116
2117 static void DrawBorder(wxWindowBase *win, const wxRect& rect, bool fill = false)
2118 {
2119     wxClientDC dc((wxWindow *)win);
2120     dc.SetPen(*wxRED_PEN);
2121     dc.SetBrush(fill ? wxBrush(*wxRED, wxCROSSDIAG_HATCH): *wxTRANSPARENT_BRUSH);
2122     dc.DrawRectangle(rect.Deflate(1, 1));
2123 }
2124
2125 static void DrawSizer(wxWindowBase *win, wxSizer *sizer)
2126 {
2127     const wxSizerItemList& items = sizer->GetChildren();
2128     for ( wxSizerItemList::const_iterator i = items.begin(),
2129                                         end = items.end();
2130           i != end;
2131           ++i )
2132     {
2133         wxSizerItem *item = *i;
2134         if ( item->IsSizer() )
2135         {
2136             DrawBorder(win, item->GetRect().Deflate(2));
2137             DrawSizer(win, item->GetSizer());
2138         }
2139         else if ( item->IsSpacer() )
2140         {
2141             DrawBorder(win, item->GetRect().Deflate(2), true);
2142         }
2143         else if ( item->IsWindow() )
2144         {
2145             DrawSizers(item->GetWindow());
2146         }
2147     }
2148 }
2149
2150 static void DrawSizers(wxWindowBase *win)
2151 {
2152     wxSizer *sizer = win->GetSizer();
2153     if ( sizer )
2154     {
2155         DrawBorder(win, win->GetClientSize());
2156         DrawSizer(win, sizer);
2157     }
2158     else // no sizer, still recurse into the children
2159     {
2160         const wxWindowList& children = win->GetChildren();
2161         for ( wxWindowList::const_iterator i = children.begin(),
2162                                          end = children.end();
2163               i != end;
2164               ++i )
2165         {
2166             DrawSizers(*i);
2167         }
2168     }
2169 }
2170
2171 #endif // __WXDEBUG__
2172
2173 // process special middle clicks
2174 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2175 {
2176     if ( event.ControlDown() && event.AltDown() )
2177     {
2178 #ifdef __WXDEBUG__
2179         // Ctrl-Alt-Shift-mclick makes the sizers visible in debug builds
2180         if ( event.ShiftDown() )
2181         {
2182             DrawSizers(this);
2183             return;
2184         }
2185 #endif // __WXDEBUG__
2186
2187 #if wxUSE_MSGDLG
2188         // don't translate these strings, they're for diagnostics purposes only
2189         wxString msg;
2190         msg.Printf(_T("wxWidgets Library (%s port)\n")
2191                    _T("Version %d.%d.%d%s%s, compiled at %s %s\n")
2192                    _T("Runtime version of toolkit used is %d.%d.%s\n")
2193                    _T("Copyright (c) 1995-2006 wxWidgets team"),
2194                    wxPlatformInfo::Get().GetPortIdName().c_str(),
2195                    wxMAJOR_VERSION,
2196                    wxMINOR_VERSION,
2197                    wxRELEASE_NUMBER,
2198 #if wxUSE_UNICODE
2199                    L" (Unicode)",
2200 #else
2201                    wxEmptyString,
2202 #endif
2203 #ifdef __WXDEBUG__
2204                    _T(" Debug build"),
2205 #else
2206                    wxEmptyString,
2207 #endif
2208                    __TDATE__,
2209                    __TTIME__,
2210                    wxPlatformInfo::Get().GetToolkitMajorVersion(),
2211                    wxPlatformInfo::Get().GetToolkitMinorVersion(),
2212 #ifdef __WXGTK__
2213                    wxString::Format(_T("\nThe compile-time GTK+ version is %d.%d.%d."), GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION).c_str()
2214 #else
2215                    wxEmptyString
2216 #endif
2217                    );
2218
2219         wxMessageBox(msg, _T("wxWidgets information"),
2220                      wxICON_INFORMATION | wxOK,
2221                      (wxWindow *)this);
2222     }
2223     else
2224 #endif // wxUSE_MSGDLG
2225     {
2226         event.Skip();
2227     }
2228 }
2229
2230 // ----------------------------------------------------------------------------
2231 // accessibility
2232 // ----------------------------------------------------------------------------
2233
2234 #if wxUSE_ACCESSIBILITY
2235 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2236 {
2237     if (m_accessible && (accessible != m_accessible))
2238         delete m_accessible;
2239     m_accessible = accessible;
2240     if (m_accessible)
2241         m_accessible->SetWindow((wxWindow*) this);
2242 }
2243
2244 // Returns the accessible object, creating if necessary.
2245 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2246 {
2247     if (!m_accessible)
2248         m_accessible = CreateAccessible();
2249     return m_accessible;
2250 }
2251
2252 // Override to create a specific accessible object.
2253 wxAccessible* wxWindowBase::CreateAccessible()
2254 {
2255     return new wxWindowAccessible((wxWindow*) this);
2256 }
2257
2258 #endif
2259
2260 // ----------------------------------------------------------------------------
2261 // list classes implementation
2262 // ----------------------------------------------------------------------------
2263
2264 #if wxUSE_STL
2265
2266 #include "wx/listimpl.cpp"
2267 WX_DEFINE_LIST(wxWindowList)
2268
2269 #else // !wxUSE_STL
2270
2271 void wxWindowListNode::DeleteData()
2272 {
2273     delete (wxWindow *)GetData();
2274 }
2275
2276 #endif // wxUSE_STL/!wxUSE_STL
2277
2278 // ----------------------------------------------------------------------------
2279 // borders
2280 // ----------------------------------------------------------------------------
2281
2282 wxBorder wxWindowBase::GetBorder(long flags) const
2283 {
2284     wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2285     if ( border == wxBORDER_DEFAULT )
2286     {
2287         border = GetDefaultBorder();
2288     }
2289
2290     return border;
2291 }
2292
2293 wxBorder wxWindowBase::GetDefaultBorder() const
2294 {
2295     return wxBORDER_NONE;
2296 }
2297
2298 // ----------------------------------------------------------------------------
2299 // hit testing
2300 // ----------------------------------------------------------------------------
2301
2302 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2303 {
2304     // here we just check if the point is inside the window or not
2305
2306     // check the top and left border first
2307     bool outside = x < 0 || y < 0;
2308     if ( !outside )
2309     {
2310         // check the right and bottom borders too
2311         wxSize size = GetSize();
2312         outside = x >= size.x || y >= size.y;
2313     }
2314
2315     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2316 }
2317
2318 // ----------------------------------------------------------------------------
2319 // mouse capture
2320 // ----------------------------------------------------------------------------
2321
2322 struct WXDLLEXPORT wxWindowNext
2323 {
2324     wxWindow *win;
2325     wxWindowNext *next;
2326 } *wxWindowBase::ms_winCaptureNext = NULL;
2327 wxWindow *wxWindowBase::ms_winCaptureCurrent = NULL;
2328 bool wxWindowBase::ms_winCaptureChanging = false;
2329
2330 void wxWindowBase::CaptureMouse()
2331 {
2332     wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), wx_static_cast(void*, this));
2333
2334     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive CaptureMouse call?") );
2335
2336     ms_winCaptureChanging = true;
2337
2338     wxWindow *winOld = GetCapture();
2339     if ( winOld )
2340     {
2341         ((wxWindowBase*) winOld)->DoReleaseMouse();
2342
2343         // save it on stack
2344         wxWindowNext *item = new wxWindowNext;
2345         item->win = winOld;
2346         item->next = ms_winCaptureNext;
2347         ms_winCaptureNext = item;
2348     }
2349     //else: no mouse capture to save
2350
2351     DoCaptureMouse();
2352     ms_winCaptureCurrent = (wxWindow*)this;
2353
2354     ms_winCaptureChanging = false;
2355 }
2356
2357 void wxWindowBase::ReleaseMouse()
2358 {
2359     wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), wx_static_cast(void*, this));
2360
2361     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive ReleaseMouse call?") );
2362
2363     wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2364
2365     ms_winCaptureChanging = true;
2366
2367     DoReleaseMouse();
2368     ms_winCaptureCurrent = NULL;
2369
2370     if ( ms_winCaptureNext )
2371     {
2372         ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2373         ms_winCaptureCurrent = ms_winCaptureNext->win;
2374
2375         wxWindowNext *item = ms_winCaptureNext;
2376         ms_winCaptureNext = item->next;
2377         delete item;
2378     }
2379     //else: stack is empty, no previous capture
2380
2381     ms_winCaptureChanging = false;
2382
2383     wxLogTrace(_T("mousecapture"),
2384         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2385         wx_static_cast(void*, GetCapture()));
2386 }
2387
2388 static void DoNotifyWindowAboutCaptureLost(wxWindow *win)
2389 {
2390     wxMouseCaptureLostEvent event(win->GetId());
2391     event.SetEventObject(win);
2392     if ( !win->GetEventHandler()->ProcessEvent(event) )
2393     {
2394         wxFAIL_MSG( _T("window that captured the mouse didn't process wxEVT_MOUSE_CAPTURE_LOST") );
2395     }
2396 }
2397
2398 /* static */
2399 void wxWindowBase::NotifyCaptureLost()
2400 {
2401     // don't do anything if capture lost was expected, i.e. resulted from
2402     // a wx call to ReleaseMouse or CaptureMouse:
2403     if ( ms_winCaptureChanging )
2404         return;
2405
2406     // if the capture was lost unexpectedly, notify every window that has
2407     // capture (on stack or current) about it and clear the stack:
2408
2409     if ( ms_winCaptureCurrent )
2410     {
2411         DoNotifyWindowAboutCaptureLost(ms_winCaptureCurrent);
2412         ms_winCaptureCurrent = NULL;
2413     }
2414
2415     while ( ms_winCaptureNext )
2416     {
2417         wxWindowNext *item = ms_winCaptureNext;
2418         ms_winCaptureNext = item->next;
2419
2420         DoNotifyWindowAboutCaptureLost(item->win);
2421
2422         delete item;
2423     }
2424 }
2425
2426 #if wxUSE_HOTKEY
2427
2428 bool
2429 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2430                              int WXUNUSED(modifiers),
2431                              int WXUNUSED(keycode))
2432 {
2433     // not implemented
2434     return false;
2435 }
2436
2437 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2438 {
2439     // not implemented
2440     return false;
2441 }
2442
2443 #endif // wxUSE_HOTKEY
2444
2445 // ----------------------------------------------------------------------------
2446 // event processing
2447 // ----------------------------------------------------------------------------
2448
2449 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2450 {
2451 #if wxUSE_VALIDATORS
2452     // Can only use the validator of the window which
2453     // is receiving the event
2454     if ( event.GetEventObject() == this )
2455     {
2456         wxValidator *validator = GetValidator();
2457         if ( validator && validator->ProcessEvent(event) )
2458         {
2459             return true;
2460         }
2461     }
2462 #endif // wxUSE_VALIDATORS
2463
2464     return false;
2465 }
2466
2467 bool wxWindowBase::TryParent(wxEvent& event)
2468 {
2469     // carry on up the parent-child hierarchy if the propagation count hasn't
2470     // reached zero yet
2471     if ( event.ShouldPropagate() )
2472     {
2473         // honour the requests to stop propagation at this window: this is
2474         // used by the dialogs, for example, to prevent processing the events
2475         // from the dialog controls in the parent frame which rarely, if ever,
2476         // makes sense
2477         if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2478         {
2479             wxWindow *parent = GetParent();
2480             if ( parent && !parent->IsBeingDeleted() )
2481             {
2482                 wxPropagateOnce propagateOnce(event);
2483
2484                 return parent->GetEventHandler()->ProcessEvent(event);
2485             }
2486         }
2487     }
2488
2489     return wxEvtHandler::TryParent(event);
2490 }
2491
2492 // ----------------------------------------------------------------------------
2493 // keyboard navigation
2494 // ----------------------------------------------------------------------------
2495
2496 // Navigates in the specified direction.
2497 bool wxWindowBase::Navigate(int flags)
2498 {
2499     wxNavigationKeyEvent eventNav;
2500     eventNav.SetFlags(flags);
2501     eventNav.SetEventObject(this);
2502     if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2503     {
2504         return true;
2505     }
2506     return false;
2507 }
2508
2509 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2510 {
2511     // check that we're not a top level window
2512     wxCHECK_RET( GetParent(),
2513                     _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2514
2515     // detect the special case when we have nothing to do anyhow and when the
2516     // code below wouldn't work
2517     if ( win == this )
2518         return;
2519
2520     // find the target window in the siblings list
2521     wxWindowList& siblings = GetParent()->GetChildren();
2522     wxWindowList::compatibility_iterator i = siblings.Find(win);
2523     wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2524
2525     // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2526     // can't just move the node around
2527     wxWindow *self = (wxWindow *)this;
2528     siblings.DeleteObject(self);
2529     if ( move == MoveAfter )
2530     {
2531         i = i->GetNext();
2532     }
2533
2534     if ( i )
2535     {
2536         siblings.Insert(i, self);
2537     }
2538     else // MoveAfter and win was the last sibling
2539     {
2540         siblings.Append(self);
2541     }
2542 }
2543
2544 // ----------------------------------------------------------------------------
2545 // focus handling
2546 // ----------------------------------------------------------------------------
2547
2548 /*static*/ wxWindow* wxWindowBase::FindFocus()
2549 {
2550     wxWindowBase *win = DoFindFocus();
2551     return win ? win->GetMainWindowOfCompositeControl() : NULL;
2552 }
2553
2554 // ----------------------------------------------------------------------------
2555 // global functions
2556 // ----------------------------------------------------------------------------
2557
2558 wxWindow* wxGetTopLevelParent(wxWindow *win)
2559 {
2560     while ( win && !win->IsTopLevel() )
2561          win = win->GetParent();
2562
2563     return win;
2564 }
2565
2566 #if wxUSE_ACCESSIBILITY
2567 // ----------------------------------------------------------------------------
2568 // accessible object for windows
2569 // ----------------------------------------------------------------------------
2570
2571 // Can return either a child object, or an integer
2572 // representing the child element, starting from 1.
2573 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2574 {
2575     wxASSERT( GetWindow() != NULL );
2576     if (!GetWindow())
2577         return wxACC_FAIL;
2578
2579     return wxACC_NOT_IMPLEMENTED;
2580 }
2581
2582 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2583 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2584 {
2585     wxASSERT( GetWindow() != NULL );
2586     if (!GetWindow())
2587         return wxACC_FAIL;
2588
2589     wxWindow* win = NULL;
2590     if (elementId == 0)
2591     {
2592         win = GetWindow();
2593     }
2594     else
2595     {
2596         if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2597         {
2598             win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2599         }
2600         else
2601             return wxACC_FAIL;
2602     }
2603     if (win)
2604     {
2605         rect = win->GetRect();
2606         if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2607             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2608         return wxACC_OK;
2609     }
2610
2611     return wxACC_NOT_IMPLEMENTED;
2612 }
2613
2614 // Navigates from fromId to toId/toObject.
2615 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2616                              int* WXUNUSED(toId), wxAccessible** toObject)
2617 {
2618     wxASSERT( GetWindow() != NULL );
2619     if (!GetWindow())
2620         return wxACC_FAIL;
2621
2622     switch (navDir)
2623     {
2624     case wxNAVDIR_FIRSTCHILD:
2625         {
2626             if (GetWindow()->GetChildren().GetCount() == 0)
2627                 return wxACC_FALSE;
2628             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2629             *toObject = childWindow->GetOrCreateAccessible();
2630
2631             return wxACC_OK;
2632         }
2633     case wxNAVDIR_LASTCHILD:
2634         {
2635             if (GetWindow()->GetChildren().GetCount() == 0)
2636                 return wxACC_FALSE;
2637             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2638             *toObject = childWindow->GetOrCreateAccessible();
2639
2640             return wxACC_OK;
2641         }
2642     case wxNAVDIR_RIGHT:
2643     case wxNAVDIR_DOWN:
2644     case wxNAVDIR_NEXT:
2645         {
2646             wxWindowList::compatibility_iterator node =
2647                 wxWindowList::compatibility_iterator();
2648             if (fromId == 0)
2649             {
2650                 // Can't navigate to sibling of this window
2651                 // if we're a top-level window.
2652                 if (!GetWindow()->GetParent())
2653                     return wxACC_NOT_IMPLEMENTED;
2654
2655                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2656             }
2657             else
2658             {
2659                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2660                     node = GetWindow()->GetChildren().Item(fromId-1);
2661             }
2662
2663             if (node && node->GetNext())
2664             {
2665                 wxWindow* nextWindow = node->GetNext()->GetData();
2666                 *toObject = nextWindow->GetOrCreateAccessible();
2667                 return wxACC_OK;
2668             }
2669             else
2670                 return wxACC_FALSE;
2671         }
2672     case wxNAVDIR_LEFT:
2673     case wxNAVDIR_UP:
2674     case wxNAVDIR_PREVIOUS:
2675         {
2676             wxWindowList::compatibility_iterator node =
2677                 wxWindowList::compatibility_iterator();
2678             if (fromId == 0)
2679             {
2680                 // Can't navigate to sibling of this window
2681                 // if we're a top-level window.
2682                 if (!GetWindow()->GetParent())
2683                     return wxACC_NOT_IMPLEMENTED;
2684
2685                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2686             }
2687             else
2688             {
2689                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2690                     node = GetWindow()->GetChildren().Item(fromId-1);
2691             }
2692
2693             if (node && node->GetPrevious())
2694             {
2695                 wxWindow* previousWindow = node->GetPrevious()->GetData();
2696                 *toObject = previousWindow->GetOrCreateAccessible();
2697                 return wxACC_OK;
2698             }
2699             else
2700                 return wxACC_FALSE;
2701         }
2702     }
2703
2704     return wxACC_NOT_IMPLEMENTED;
2705 }
2706
2707 // Gets the name of the specified object.
2708 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2709 {
2710     wxASSERT( GetWindow() != NULL );
2711     if (!GetWindow())
2712         return wxACC_FAIL;
2713
2714     wxString title;
2715
2716     // If a child, leave wxWidgets to call the function on the actual
2717     // child object.
2718     if (childId > 0)
2719         return wxACC_NOT_IMPLEMENTED;
2720
2721     // This will eventually be replaced by specialised
2722     // accessible classes, one for each kind of wxWidgets
2723     // control or window.
2724 #if wxUSE_BUTTON
2725     if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2726         title = ((wxButton*) GetWindow())->GetLabel();
2727     else
2728 #endif
2729         title = GetWindow()->GetName();
2730
2731     if (!title.empty())
2732     {
2733         *name = title;
2734         return wxACC_OK;
2735     }
2736     else
2737         return wxACC_NOT_IMPLEMENTED;
2738 }
2739
2740 // Gets the number of children.
2741 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2742 {
2743     wxASSERT( GetWindow() != NULL );
2744     if (!GetWindow())
2745         return wxACC_FAIL;
2746
2747     *childId = (int) GetWindow()->GetChildren().GetCount();
2748     return wxACC_OK;
2749 }
2750
2751 // Gets the specified child (starting from 1).
2752 // If *child is NULL and return value is wxACC_OK,
2753 // this means that the child is a simple element and
2754 // not an accessible object.
2755 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2756 {
2757     wxASSERT( GetWindow() != NULL );
2758     if (!GetWindow())
2759         return wxACC_FAIL;
2760
2761     if (childId == 0)
2762     {
2763         *child = this;
2764         return wxACC_OK;
2765     }
2766
2767     if (childId > (int) GetWindow()->GetChildren().GetCount())
2768         return wxACC_FAIL;
2769
2770     wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2771     *child = childWindow->GetOrCreateAccessible();
2772     if (*child)
2773         return wxACC_OK;
2774     else
2775         return wxACC_FAIL;
2776 }
2777
2778 // Gets the parent, or NULL.
2779 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2780 {
2781     wxASSERT( GetWindow() != NULL );
2782     if (!GetWindow())
2783         return wxACC_FAIL;
2784
2785     wxWindow* parentWindow = GetWindow()->GetParent();
2786     if (!parentWindow)
2787     {
2788         *parent = NULL;
2789         return wxACC_OK;
2790     }
2791     else
2792     {
2793         *parent = parentWindow->GetOrCreateAccessible();
2794         if (*parent)
2795             return wxACC_OK;
2796         else
2797             return wxACC_FAIL;
2798     }
2799 }
2800
2801 // Performs the default action. childId is 0 (the action for this object)
2802 // or > 0 (the action for a child).
2803 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2804 // window (e.g. an edit control).
2805 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2806 {
2807     wxASSERT( GetWindow() != NULL );
2808     if (!GetWindow())
2809         return wxACC_FAIL;
2810
2811     return wxACC_NOT_IMPLEMENTED;
2812 }
2813
2814 // Gets the default action for this object (0) or > 0 (the action for a child).
2815 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2816 // string if there is no action.
2817 // The retrieved string describes the action that is performed on an object,
2818 // not what the object does as a result. For example, a toolbar button that prints
2819 // a document has a default action of "Press" rather than "Prints the current document."
2820 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2821 {
2822     wxASSERT( GetWindow() != NULL );
2823     if (!GetWindow())
2824         return wxACC_FAIL;
2825
2826     return wxACC_NOT_IMPLEMENTED;
2827 }
2828
2829 // Returns the description for this object or a child.
2830 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2831 {
2832     wxASSERT( GetWindow() != NULL );
2833     if (!GetWindow())
2834         return wxACC_FAIL;
2835
2836     wxString ht(GetWindow()->GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Keyboard));
2837     if (!ht.empty())
2838     {
2839         *description = ht;
2840         return wxACC_OK;
2841     }
2842     return wxACC_NOT_IMPLEMENTED;
2843 }
2844
2845 // Returns help text for this object or a child, similar to tooltip text.
2846 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2847 {
2848     wxASSERT( GetWindow() != NULL );
2849     if (!GetWindow())
2850         return wxACC_FAIL;
2851
2852     wxString ht(GetWindow()->GetHelpTextAtPoint(wxDefaultPosition, wxHelpEvent::Origin_Keyboard));
2853     if (!ht.empty())
2854     {
2855         *helpText = ht;
2856         return wxACC_OK;
2857     }
2858     return wxACC_NOT_IMPLEMENTED;
2859 }
2860
2861 // Returns the keyboard shortcut for this object or child.
2862 // Return e.g. ALT+K
2863 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2864 {
2865     wxASSERT( GetWindow() != NULL );
2866     if (!GetWindow())
2867         return wxACC_FAIL;
2868
2869     return wxACC_NOT_IMPLEMENTED;
2870 }
2871
2872 // Returns a role constant.
2873 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2874 {
2875     wxASSERT( GetWindow() != NULL );
2876     if (!GetWindow())
2877         return wxACC_FAIL;
2878
2879     // If a child, leave wxWidgets to call the function on the actual
2880     // child object.
2881     if (childId > 0)
2882         return wxACC_NOT_IMPLEMENTED;
2883
2884     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2885         return wxACC_NOT_IMPLEMENTED;
2886 #if wxUSE_STATUSBAR
2887     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2888         return wxACC_NOT_IMPLEMENTED;
2889 #endif
2890 #if wxUSE_TOOLBAR
2891     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2892         return wxACC_NOT_IMPLEMENTED;
2893 #endif
2894
2895     //*role = wxROLE_SYSTEM_CLIENT;
2896     *role = wxROLE_SYSTEM_CLIENT;
2897     return wxACC_OK;
2898
2899     #if 0
2900     return wxACC_NOT_IMPLEMENTED;
2901     #endif
2902 }
2903
2904 // Returns a state constant.
2905 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2906 {
2907     wxASSERT( GetWindow() != NULL );
2908     if (!GetWindow())
2909         return wxACC_FAIL;
2910
2911     // If a child, leave wxWidgets to call the function on the actual
2912     // child object.
2913     if (childId > 0)
2914         return wxACC_NOT_IMPLEMENTED;
2915
2916     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2917         return wxACC_NOT_IMPLEMENTED;
2918
2919 #if wxUSE_STATUSBAR
2920     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2921         return wxACC_NOT_IMPLEMENTED;
2922 #endif
2923 #if wxUSE_TOOLBAR
2924     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2925         return wxACC_NOT_IMPLEMENTED;
2926 #endif
2927
2928     *state = 0;
2929     return wxACC_OK;
2930
2931     #if 0
2932     return wxACC_NOT_IMPLEMENTED;
2933     #endif
2934 }
2935
2936 // Returns a localized string representing the value for the object
2937 // or child.
2938 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2939 {
2940     wxASSERT( GetWindow() != NULL );
2941     if (!GetWindow())
2942         return wxACC_FAIL;
2943
2944     return wxACC_NOT_IMPLEMENTED;
2945 }
2946
2947 // Selects the object or child.
2948 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2949 {
2950     wxASSERT( GetWindow() != NULL );
2951     if (!GetWindow())
2952         return wxACC_FAIL;
2953
2954     return wxACC_NOT_IMPLEMENTED;
2955 }
2956
2957 // Gets the window with the keyboard focus.
2958 // If childId is 0 and child is NULL, no object in
2959 // this subhierarchy has the focus.
2960 // If this object has the focus, child should be 'this'.
2961 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2962 {
2963     wxASSERT( GetWindow() != NULL );
2964     if (!GetWindow())
2965         return wxACC_FAIL;
2966
2967     return wxACC_NOT_IMPLEMENTED;
2968 }
2969
2970 #if wxUSE_VARIANT
2971 // Gets a variant representing the selected children
2972 // of this object.
2973 // Acceptable values:
2974 // - a null variant (IsNull() returns true)
2975 // - a list variant (GetType() == wxT("list")
2976 // - an integer representing the selected child element,
2977 //   or 0 if this object is selected (GetType() == wxT("long")
2978 // - a "void*" pointer to a wxAccessible child object
2979 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
2980 {
2981     wxASSERT( GetWindow() != NULL );
2982     if (!GetWindow())
2983         return wxACC_FAIL;
2984
2985     return wxACC_NOT_IMPLEMENTED;
2986 }
2987 #endif // wxUSE_VARIANT
2988
2989 #endif // wxUSE_ACCESSIBILITY
2990
2991 // ----------------------------------------------------------------------------
2992 // RTL support
2993 // ----------------------------------------------------------------------------
2994
2995 wxCoord
2996 wxWindowBase::AdjustForLayoutDirection(wxCoord x,
2997                                        wxCoord width,
2998                                        wxCoord widthTotal) const
2999 {
3000     if ( GetLayoutDirection() == wxLayout_RightToLeft )
3001     {
3002         x = widthTotal - x - width;
3003     }
3004
3005     return x;
3006 }
3007