src/common/wincmn.cpp

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