src/common/wincmn.cpp

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