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     // Reserved for future use
 220     m_windowReserved = NULL;
 221 }
 222
 223 // common part of window creation process
 224 bool wxWindowBase::CreateBase(wxWindowBase *parent,
 225                               wxWindowID id,
 226                               const wxPoint& WXUNUSED(pos),
 227                               const wxSize& WXUNUSED(size),
 228                               long style,
 229                               const wxValidator& wxVALIDATOR_PARAM(validator),
 230                               const wxString& name)
 231 {
 232 #if wxUSE_STATBOX
 233     // wxGTK doesn't allow to create controls with static box as the parent so
 234     // this will result in a crash when the program is ported to wxGTK so warn
 235     // the user about it
 236
 237     // if you get this assert, the correct solution is to create the controls
 238     // as siblings of the static box
 239     wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
 240                   _T("wxStaticBox can't be used as a window parent!") );
 241 #endif // wxUSE_STATBOX
 242
 243     // ids are limited to 16 bits under MSW so if you care about portability,
 244     // it's not a good idea to use ids out of this range (and negative ids are
 245     // reserved for wxWidgets own usage)
 246     wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
 247                   _T("invalid id value") );
 248
 249     // generate a new id if the user doesn't care about it
 250     m_windowId = id == wxID_ANY ? NewControlId() : id;
 251
 252     SetName(name);
 253     SetWindowStyleFlag(style);
 254     SetParent(parent);
 255
 256 #if wxUSE_VALIDATORS
 257     SetValidator(validator);
 258 #endif // wxUSE_VALIDATORS
 259
 260     // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
 261     // have it too - like this it's possible to set it only in the top level
 262     // dialog/frame and all children will inherit it by defult
 263     if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
 264     {
 265         SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
 266     }
 267
 268     return true;
 269 }
 270
 271 // ----------------------------------------------------------------------------
 272 // destruction
 273 // ----------------------------------------------------------------------------
 274
 275 // common clean up
 276 wxWindowBase::~wxWindowBase()
 277 {
 278     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 279
 280     // FIXME if these 2 cases result from programming errors in the user code
 281     //       we should probably assert here instead of silently fixing them
 282
 283     // Just in case the window has been Closed, but we're then deleting
 284     // immediately: don't leave dangling pointers.
 285     wxPendingDelete.DeleteObject(this);
 286
 287     // Just in case we've loaded a top-level window via LoadNativeDialog but
 288     // we weren't a dialog class
 289     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 290
 291     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 292
 293     // reset the dangling pointer our parent window may keep to us
 294     if ( m_parent )
 295     {
 296         if ( m_parent->GetDefaultItem() == this )
 297         {
 298             m_parent->SetDefaultItem(NULL);
 299         }
 300
 301         m_parent->RemoveChild(this);
 302     }
 303
 304 #if wxUSE_CARET
 305     delete m_caret;
 306 #endif // wxUSE_CARET
 307
 308 #if wxUSE_VALIDATORS
 309     delete m_windowValidator;
 310 #endif // wxUSE_VALIDATORS
 311
 312 #if wxUSE_CONSTRAINTS
 313     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
 314     // at deleted windows as they delete themselves.
 315     DeleteRelatedConstraints();
 316
 317     if ( m_constraints )
 318     {
 319         // This removes any dangling pointers to this window in other windows'
 320         // constraintsInvolvedIn lists.
 321         UnsetConstraints(m_constraints);
 322         delete m_constraints;
 323         m_constraints = NULL;
 324     }
 325 #endif // wxUSE_CONSTRAINTS
 326
 327     if ( m_containingSizer )
 328         m_containingSizer->Detach( (wxWindow*)this );
 329
 330     delete m_windowSizer;
 331
 332 #if wxUSE_DRAG_AND_DROP
 333     delete m_dropTarget;
 334 #endif // wxUSE_DRAG_AND_DROP
 335
 336 #if wxUSE_TOOLTIPS
 337     delete m_tooltip;
 338 #endif // wxUSE_TOOLTIPS
 339
 340 #if wxUSE_ACCESSIBILITY
 341     delete m_accessible;
 342 #endif
 343 }
 344
 345 bool wxWindowBase::Destroy()
 346 {
 347     delete this;
 348
 349     return true;
 350 }
 351
 352 bool wxWindowBase::Close(bool force)
 353 {
 354     wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
 355     event.SetEventObject(this);
 356     event.SetCanVeto(!force);
 357
 358     // return false if window wasn't closed because the application vetoed the
 359     // close event
 360     return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
 361 }
 362
 363 bool wxWindowBase::DestroyChildren()
 364 {
 365     wxWindowList::compatibility_iterator node;
 366     for ( ;; )
 367     {
 368         // we iterate until the list becomes empty
 369         node = GetChildren().GetFirst();
 370         if ( !node )
 371             break;
 372
 373         wxWindow *child = node->GetData();
 374
 375         // note that we really want to call delete and not ->Destroy() here
 376         // because we want to delete the child immediately, before we are
 377         // deleted, and delayed deletion would result in problems as our (top
 378         // level) child could outlive its parent
 379         delete child;
 380
 381         wxASSERT_MSG( !GetChildren().Find(child),
 382                       wxT("child didn't remove itself using RemoveChild()") );
 383     }
 384
 385     return true;
 386 }
 387
 388 // ----------------------------------------------------------------------------
 389 // size/position related methods
 390 // ----------------------------------------------------------------------------
 391
 392 // centre the window with respect to its parent in either (or both) directions
 393 void wxWindowBase::Centre(int direction)
 394 {
 395     // the position/size of the parent window or of the entire screen
 396     wxPoint posParent;
 397     int widthParent, heightParent;
 398
 399     wxWindow *parent = NULL;
 400     wxTopLevelWindow *winTop = NULL;
 401
 402     if ( !(direction & wxCENTRE_ON_SCREEN) )
 403     {
 404         // find the parent to centre this window on: it should be the
 405         // immediate parent for the controls but the top level parent for the
 406         // top level windows (like dialogs)
 407         parent = GetParent();
 408         if ( IsTopLevel() )
 409         {
 410             while ( parent && !parent->IsTopLevel() )
 411             {
 412                 parent = parent->GetParent();
 413             }
 414         }
 415
 416         // there is no wxTopLevelWindow under wxMotif yet
 417 #ifndef __WXMOTIF__
 418         // we shouldn't center the dialog on the iconized window: under
 419         // Windows, for example, this places it completely off the screen
 420         if ( parent )
 421         {
 422             winTop = wxDynamicCast(parent, wxTopLevelWindow);
 423             if ( winTop && winTop->IsIconized() )
 424             {
 425                 winTop = NULL;
 426                 parent = NULL;
 427             }
 428         }
 429 #endif // __WXMOTIF__
 430
 431         // did we find the parent?
 432         if ( !parent )
 433         {
 434             // no other choice
 435             direction |= wxCENTRE_ON_SCREEN;
 436         }
 437     }
 438
 439     if ( direction & wxCENTRE_ON_SCREEN )
 440     {
 441         //RN:  If we are using wxDisplay we get
 442         //the dimensions of the monitor the window is on,
 443         //otherwise we get the dimensions of the primary monitor
 444         //FIXME:  wxDisplay::GetFromWindow only implemented on MSW
 445 #if wxUSE_DISPLAY && defined(__WXMSW__)
 446         int nDisplay = wxDisplay::GetFromWindow((wxWindow*)this);
 447         if(nDisplay != wxNOT_FOUND)
 448         {
 449             wxDisplay windowDisplay(nDisplay);
 450             wxRect displayRect = windowDisplay.GetGeometry();
 451             widthParent = displayRect.width;
 452             heightParent = displayRect.height;
 453         }
 454         else
 455 #endif
 456         // centre with respect to the whole screen
 457         wxDisplaySize(&widthParent, &heightParent);
 458     }
 459     else
 460     {
 461         if ( IsTopLevel() )
 462         {
 463             if(winTop)
 464                 winTop->GetRectForTopLevelChildren(&posParent.x, &posParent.y, &widthParent, &heightParent);
 465             else
 466             {
 467                 // centre on the parent
 468                 parent->GetSize(&widthParent, &heightParent);
 469
 470                 // adjust to the parents position
 471                 posParent = parent->GetPosition();
 472             }
 473         }
 474         else
 475         {
 476             // centre inside the parents client rectangle
 477             parent->GetClientSize(&widthParent, &heightParent);
 478         }
 479     }
 480
 481     int width, height;
 482     GetSize(&width, &height);
 483
 484     int xNew = wxDefaultCoord,
 485         yNew = wxDefaultCoord;
 486
 487     if ( direction & wxHORIZONTAL )
 488         xNew = (widthParent - width)/2;
 489
 490     if ( direction & wxVERTICAL )
 491         yNew = (heightParent - height)/2;
 492
 493     xNew += posParent.x;
 494     yNew += posParent.y;
 495
 496     // FIXME:  This needs to get the client display rect of the display
 497     // the window is (via wxDisplay::GetFromWindow).
 498
 499     // Base size of the visible dimensions of the display
 500     // to take into account the taskbar. And the Mac menu bar at top.
 501     wxRect clientrect = wxGetClientDisplayRect();
 502
 503     // NB: in wxMSW, negative position may not neccessary mean "out of screen",
 504     //     but it may mean that the window is placed on other than the main
 505     //     display. Therefore we only make sure centered window is on the main display
 506     //     if the parent is at least partially present here.
 507     if (posParent.x + widthParent >= 0)  // if parent is (partially) on the main display
 508     {
 509         if (xNew < clientrect.GetLeft())
 510             xNew = clientrect.GetLeft();
 511         else if (xNew + width > clientrect.GetRight())
 512             xNew = clientrect.GetRight() - width;
 513     }
 514     if (posParent.y + heightParent >= 0)  // if parent is (partially) on the main display
 515     {
 516         if (yNew + height > clientrect.GetBottom())
 517             yNew = clientrect.GetBottom() - height;
 518
 519         // Make certain that the title bar is initially visible
 520         // always, even if this would push the bottom of the
 521         // dialog off the visible area of the display
 522         if (yNew < clientrect.GetTop())
 523             yNew = clientrect.GetTop();
 524     }
 525
 526     // move the window to this position (keeping the old size but using
 527     // SetSize() and not Move() to allow xNew and/or yNew to be wxDefaultCoord)
 528     SetSize(xNew, yNew, width, height, wxSIZE_ALLOW_MINUS_ONE);
 529 }
 530
 531 // fits the window around the children
 532 void wxWindowBase::Fit()
 533 {
 534     if ( GetChildren().GetCount() > 0 )
 535     {
 536         SetSize(GetBestSize());
 537     }
 538     //else: do nothing if we have no children
 539 }
 540
 541 // fits virtual size (ie. scrolled area etc.) around children
 542 void wxWindowBase::FitInside()
 543 {
 544     if ( GetChildren().GetCount() > 0 )
 545     {
 546         SetVirtualSize( GetBestVirtualSize() );
 547     }
 548 }
 549
 550 // On Mac, scrollbars are explicitly children.
 551 #ifdef __WXMAC__
 552 static bool wxHasRealChildren(const wxWindowBase* win)
 553 {
 554     int realChildCount = 0;
 555
 556     for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
 557           node;
 558           node = node->GetNext() )
 559     {
 560         wxWindow *win = node->GetData();
 561         if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
 562             realChildCount ++;
 563     }
 564     return (realChildCount > 0);
 565 }
 566 #endif
 567
 568 void wxWindowBase::InvalidateBestSize()
 569 {
 570     m_bestSizeCache = wxDefaultSize;
 571
 572     // parent's best size calculation may depend on its children's
 573     // best sizes, so let's invalidate it as well to be safe:
 574     if (m_parent)
 575         m_parent->InvalidateBestSize();
 576 }
 577
 578 // return the size best suited for the current window
 579 wxSize wxWindowBase::DoGetBestSize() const
 580 {
 581     wxSize best;
 582
 583     if ( m_windowSizer )
 584     {
 585         best = m_windowSizer->GetMinSize();
 586     }
 587 #if wxUSE_CONSTRAINTS
 588     else if ( m_constraints )
 589     {
 590         wxConstCast(this, wxWindowBase)->SatisfyConstraints();
 591
 592         // our minimal acceptable size is such that all our windows fit inside
 593         int maxX = 0,
 594             maxY = 0;
 595
 596         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 597               node;
 598               node = node->GetNext() )
 599         {
 600             wxLayoutConstraints *c = node->GetData()->GetConstraints();
 601             if ( !c )
 602             {
 603                 // it's not normal that we have an unconstrained child, but
 604                 // what can we do about it?
 605                 continue;
 606             }
 607
 608             int x = c->right.GetValue(),
 609                 y = c->bottom.GetValue();
 610
 611             if ( x > maxX )
 612                 maxX = x;
 613
 614             if ( y > maxY )
 615                 maxY = y;
 616
 617             // TODO: we must calculate the overlaps somehow, otherwise we
 618             //       will never return a size bigger than the current one :-(
 619         }
 620
 621         best = wxSize(maxX, maxY);
 622     }
 623 #endif // wxUSE_CONSTRAINTS
 624     else if ( !GetChildren().empty()
 625 #ifdef __WXMAC__
 626               && wxHasRealChildren(this)
 627 #endif
 628               )
 629     {
 630         // our minimal acceptable size is such that all our visible child windows fit inside
 631         int maxX = 0,
 632             maxY = 0;
 633
 634         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 635               node;
 636               node = node->GetNext() )
 637         {
 638             wxWindow *win = node->GetData();
 639             if ( win->IsTopLevel()  || ( ! win->IsShown() )
 640 #if wxUSE_STATUSBAR
 641                     || wxDynamicCast(win, wxStatusBar)
 642 #endif // wxUSE_STATUSBAR
 643                )
 644             {
 645                 // dialogs and frames lie in different top level windows -
 646                 // don't deal with them here; as for the status bars, they
 647                 // don't lie in the client area at all
 648                 continue;
 649             }
 650
 651             int wx, wy, ww, wh;
 652             win->GetPosition(&wx, &wy);
 653
 654             // if the window hadn't been positioned yet, assume that it is in
 655             // the origin
 656             if ( wx == wxDefaultCoord )
 657                 wx = 0;
 658             if ( wy == wxDefaultCoord )
 659                 wy = 0;
 660
 661             win->GetSize(&ww, &wh);
 662             if ( wx + ww > maxX )
 663                 maxX = wx + ww;
 664             if ( wy + wh > maxY )
 665                 maxY = wy + wh;
 666         }
 667
 668         // for compatibility with the old versions and because it really looks
 669         // slightly more pretty like this, add a pad
 670         maxX += 7;
 671         maxY += 14;
 672
 673         best = wxSize(maxX, maxY);
 674     }
 675     else // ! has children
 676     {
 677         // For a generic window there is no natural best size - just use
 678         // either the minimum size if there is one, or the current size.
 679         // These are returned as-is, unadjusted by the client size difference.
 680         if ( GetMinSize().IsFullySpecified() )
 681             return GetMinSize();
 682         else
 683             return GetSize();
 684     }
 685
 686     // Add any difference between size and client size
 687     wxSize diff = GetSize() - GetClientSize();
 688     best.x += wxMax(0, diff.x);
 689     best.y += wxMax(0, diff.y);
 690
 691     return best;
 692 }
 693
 694
 695 wxSize wxWindowBase::GetBestFittingSize() const
 696 {
 697     // merge the best size with the min size, giving priority to the min size
 698     wxSize min = GetMinSize();
 699     if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
 700     {
 701         wxSize best = GetBestSize();
 702         if (min.x == wxDefaultCoord) min.x =  best.x;
 703         if (min.y == wxDefaultCoord) min.y =  best.y;
 704     }
 705     return min;
 706 }
 707
 708
 709 void wxWindowBase::SetBestFittingSize(const wxSize& size)
 710 {
 711     // Set the min size to the size passed in.  This will usually either be
 712     // wxDefaultSize or the size passed to this window's ctor/Create function.
 713     SetMinSize(size);
 714
 715     // Merge the size with the best size if needed
 716     wxSize best = GetBestFittingSize();
 717
 718     // If the current size doesn't match then change it
 719     if (GetSize() != best)
 720         SetSize(best);
 721 }
 722
 723
 724 // by default the origin is not shifted
 725 wxPoint wxWindowBase::GetClientAreaOrigin() const
 726 {
 727     return wxPoint(0,0);
 728 }
 729
 730 // set the min/max size of the window
 731 void wxWindowBase::DoSetSizeHints(int minW, int minH,
 732                                   int maxW, int maxH,
 733                                   int WXUNUSED(incW), int WXUNUSED(incH))
 734 {
 735     // setting min width greater than max width leads to infinite loops under
 736     // X11 and generally doesn't make any sense, so don't allow it
 737     wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
 738                     (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
 739                  _T("min width/height must be less than max width/height!") );
 740
 741     m_minWidth = minW;
 742     m_maxWidth = maxW;
 743     m_minHeight = minH;
 744     m_maxHeight = maxH;
 745 }
 746
 747 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 748 {
 749     if ( m_windowVariant != variant )
 750     {
 751         m_windowVariant = variant;
 752
 753         DoSetWindowVariant(variant);
 754     }
 755 }
 756
 757 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
 758 {
 759     // adjust the font height to correspond to our new variant (notice that
 760     // we're only called if something really changed)
 761     wxFont font = GetFont();
 762     int size = font.GetPointSize();
 763     switch ( variant )
 764     {
 765         case wxWINDOW_VARIANT_NORMAL:
 766             break;
 767
 768         case wxWINDOW_VARIANT_SMALL:
 769             size *= 3;
 770             size /= 4;
 771             break;
 772
 773         case wxWINDOW_VARIANT_MINI:
 774             size *= 2;
 775             size /= 3;
 776             break;
 777
 778         case wxWINDOW_VARIANT_LARGE:
 779             size *= 5;
 780             size /= 4;
 781             break;
 782
 783         default:
 784             wxFAIL_MSG(_T("unexpected window variant"));
 785             break;
 786     }
 787
 788     font.SetPointSize(size);
 789     SetFont(font);
 790 }
 791
 792 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
 793                                         int maxW, int maxH )
 794 {
 795     m_minVirtualWidth = minW;
 796     m_maxVirtualWidth = maxW;
 797     m_minVirtualHeight = minH;
 798     m_maxVirtualHeight = maxH;
 799 }
 800
 801 void wxWindowBase::DoSetVirtualSize( int x, int y )
 802 {
 803     if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
 804         x = m_minVirtualWidth;
 805     if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
 806         x = m_maxVirtualWidth;
 807     if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
 808         y = m_minVirtualHeight;
 809     if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
 810         y = m_maxVirtualHeight;
 811
 812     m_virtualSize = wxSize(x, y);
 813 }
 814
 815 wxSize wxWindowBase::DoGetVirtualSize() const
 816 {
 817     if ( m_virtualSize.IsFullySpecified() )
 818         return m_virtualSize;
 819
 820     wxSize size = GetClientSize();
 821     if ( m_virtualSize.x != wxDefaultCoord )
 822         size.x = m_virtualSize.x;
 823
 824     if ( m_virtualSize.y != wxDefaultCoord )
 825         size.y = m_virtualSize.y;
 826
 827     return size;
 828 }
 829
 830 // ----------------------------------------------------------------------------
 831 // show/hide/enable/disable the window
 832 // ----------------------------------------------------------------------------
 833
 834 bool wxWindowBase::Show(bool show)
 835 {
 836     if ( show != m_isShown )
 837     {
 838         m_isShown = show;
 839
 840         return true;
 841     }
 842     else
 843     {
 844         return false;
 845     }
 846 }
 847
 848 bool wxWindowBase::Enable(bool enable)
 849 {
 850     if ( enable != m_isEnabled )
 851     {
 852         m_isEnabled = enable;
 853
 854         return true;
 855     }
 856     else
 857     {
 858         return false;
 859     }
 860 }
 861 // ----------------------------------------------------------------------------
 862 // RTTI
 863 // ----------------------------------------------------------------------------
 864
 865 bool wxWindowBase::IsTopLevel() const
 866 {
 867     return false;
 868 }
 869
 870 // ----------------------------------------------------------------------------
 871 // reparenting the window
 872 // ----------------------------------------------------------------------------
 873
 874 void wxWindowBase::AddChild(wxWindowBase *child)
 875 {
 876     wxCHECK_RET( child, wxT("can't add a NULL child") );
 877
 878     // this should never happen and it will lead to a crash later if it does
 879     // because RemoveChild() will remove only one node from the children list
 880     // and the other(s) one(s) will be left with dangling pointers in them
 881     wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
 882
 883     GetChildren().Append((wxWindow*)child);
 884     child->SetParent(this);
 885 }
 886
 887 void wxWindowBase::RemoveChild(wxWindowBase *child)
 888 {
 889     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 890
 891     GetChildren().DeleteObject((wxWindow *)child);
 892     child->SetParent(NULL);
 893 }
 894
 895 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 896 {
 897     wxWindow *oldParent = GetParent();
 898     if ( newParent == oldParent )
 899     {
 900         // nothing done
 901         return false;
 902     }
 903
 904     // unlink this window from the existing parent.
 905     if ( oldParent )
 906     {
 907         oldParent->RemoveChild(this);
 908     }
 909     else
 910     {
 911         wxTopLevelWindows.DeleteObject((wxWindow *)this);
 912     }
 913
 914     // add it to the new one
 915     if ( newParent )
 916     {
 917         newParent->AddChild(this);
 918     }
 919     else
 920     {
 921         wxTopLevelWindows.Append((wxWindow *)this);
 922     }
 923
 924     return true;
 925 }
 926
 927 // ----------------------------------------------------------------------------
 928 // event handler stuff
 929 // ----------------------------------------------------------------------------
 930
 931 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
 932 {
 933     wxEvtHandler *handlerOld = GetEventHandler();
 934
 935     handler->SetNextHandler(handlerOld);
 936
 937     if ( handlerOld )
 938         GetEventHandler()->SetPreviousHandler(handler);
 939
 940     SetEventHandler(handler);
 941 }
 942
 943 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 944 {
 945     wxEvtHandler *handlerA = GetEventHandler();
 946     if ( handlerA )
 947     {
 948         wxEvtHandler *handlerB = handlerA->GetNextHandler();
 949         handlerA->SetNextHandler((wxEvtHandler *)NULL);
 950
 951         if ( handlerB )
 952             handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
 953         SetEventHandler(handlerB);
 954
 955         if ( deleteHandler )
 956         {
 957             delete handlerA;
 958             handlerA = (wxEvtHandler *)NULL;
 959         }
 960     }
 961
 962     return handlerA;
 963 }
 964
 965 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
 966 {
 967     wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
 968
 969     wxEvtHandler *handlerPrev = NULL,
 970                  *handlerCur = GetEventHandler();
 971     while ( handlerCur )
 972     {
 973         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 974
 975         if ( handlerCur == handler )
 976         {
 977             if ( handlerPrev )
 978             {
 979                 handlerPrev->SetNextHandler(handlerNext);
 980             }
 981             else
 982             {
 983                 SetEventHandler(handlerNext);
 984             }
 985
 986             if ( handlerNext )
 987             {
 988                 handlerNext->SetPreviousHandler ( handlerPrev );
 989             }
 990
 991             handler->SetNextHandler(NULL);
 992             handler->SetPreviousHandler(NULL);
 993
 994             return true;
 995         }
 996
 997         handlerPrev = handlerCur;
 998         handlerCur = handlerNext;
 999     }
1000
1001     wxFAIL_MSG( _T("where has the event handler gone?") );
1002
1003     return false;
1004 }
1005
1006 // ----------------------------------------------------------------------------
1007 // colours, fonts &c
1008 // ----------------------------------------------------------------------------
1009
1010 void wxWindowBase::InheritAttributes()
1011 {
1012     const wxWindowBase * const parent = GetParent();
1013     if ( !parent )
1014         return;
1015
1016     // we only inherit attributes which had been explicitly set for the parent
1017     // which ensures that this only happens if the user really wants it and
1018     // not by default which wouldn't make any sense in modern GUIs where the
1019     // controls don't all use the same fonts (nor colours)
1020     if ( parent->m_inheritFont && !m_hasFont )
1021         SetFont(parent->GetFont());
1022
1023     // in addition, there is a possibility to explicitly forbid inheriting
1024     // colours at each class level by overriding ShouldInheritColours()
1025     if ( ShouldInheritColours() )
1026     {
1027         if ( parent->m_inheritFgCol && !m_hasFgCol )
1028             SetForegroundColour(parent->GetForegroundColour());
1029
1030         // inheriting (solid) background colour is wrong as it totally breaks
1031         // any kind of themed backgrounds
1032         //
1033         // instead, the controls should use the same background as their parent
1034         // (ideally by not drawing it at all)
1035 #if 0
1036         if ( parent->m_inheritBgCol && !m_hasBgCol )
1037             SetBackgroundColour(parent->GetBackgroundColour());
1038 #endif // 0
1039     }
1040 }
1041
1042 /* static */ wxVisualAttributes
1043 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1044 {
1045     // it is important to return valid values for all attributes from here,
1046     // GetXXX() below rely on this
1047     wxVisualAttributes attrs;
1048     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
1049     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
1050
1051     // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
1052     // the usual background colour than wxSYS_COLOUR_BTNFACE.
1053     // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
1054     // colour on other platforms.
1055
1056 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
1057     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1058 #else
1059     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
1060 #endif
1061     return attrs;
1062 }
1063
1064 wxColour wxWindowBase::GetBackgroundColour() const
1065 {
1066     if ( !m_backgroundColour.Ok() )
1067     {
1068         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
1069
1070         // get our default background colour
1071         wxColour colBg = GetDefaultAttributes().colBg;
1072
1073         // we must return some valid colour to avoid redoing this every time
1074         // and also to avoid surprizing the applications written for older
1075         // wxWidgets versions where GetBackgroundColour() always returned
1076         // something -- so give them something even if it doesn't make sense
1077         // for this window (e.g. it has a themed background)
1078         if ( !colBg.Ok() )
1079             colBg = GetClassDefaultAttributes().colBg;
1080
1081         return colBg;
1082     }
1083     else
1084         return m_backgroundColour;
1085 }
1086
1087 wxColour wxWindowBase::GetForegroundColour() const
1088 {
1089     // logic is the same as above
1090     if ( !m_hasFgCol && !m_foregroundColour.Ok() )
1091     {
1092         wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
1093
1094         wxColour colFg = GetDefaultAttributes().colFg;
1095
1096         if ( !colFg.Ok() )
1097             colFg = GetClassDefaultAttributes().colFg;
1098
1099         return colFg;
1100     }
1101     else
1102         return m_foregroundColour;
1103 }
1104
1105 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
1106 {
1107     if ( colour == m_backgroundColour )
1108         return false;
1109
1110     m_hasBgCol = colour.Ok();
1111     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
1112         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
1113
1114     m_inheritBgCol = m_hasBgCol;
1115     m_backgroundColour = colour;
1116     SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1117     return true;
1118 }
1119
1120 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1121 {
1122     if (colour == m_foregroundColour )
1123         return false;
1124
1125     m_hasFgCol = colour.Ok();
1126     m_inheritFgCol = m_hasFgCol;
1127     m_foregroundColour = colour;
1128     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1129     return true;
1130 }
1131
1132 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1133 {
1134     // setting an invalid cursor is ok, it means that we don't have any special
1135     // cursor
1136     if ( m_cursor == cursor )
1137     {
1138         // no change
1139         return false;
1140     }
1141
1142     m_cursor = cursor;
1143
1144     return true;
1145 }
1146
1147 wxFont wxWindowBase::GetFont() const
1148 {
1149     // logic is the same as in GetBackgroundColour()
1150     if ( !m_font.Ok() )
1151     {
1152         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1153
1154         wxFont font = GetDefaultAttributes().font;
1155         if ( !font.Ok() )
1156             font = GetClassDefaultAttributes().font;
1157
1158         return font;
1159     }
1160     else
1161         return m_font;
1162 }
1163
1164 bool wxWindowBase::SetFont(const wxFont& font)
1165 {
1166     if ( font == m_font )
1167     {
1168         // no change
1169         return false;
1170     }
1171
1172     m_font = font;
1173     m_hasFont = font.Ok();
1174     m_inheritFont = m_hasFont;
1175
1176     InvalidateBestSize();
1177
1178     return true;
1179 }
1180
1181 #if wxUSE_PALETTE
1182
1183 void wxWindowBase::SetPalette(const wxPalette& pal)
1184 {
1185     m_hasCustomPalette = true;
1186     m_palette = pal;
1187
1188     // VZ: can anyone explain me what do we do here?
1189     wxWindowDC d((wxWindow *) this);
1190     d.SetPalette(pal);
1191 }
1192
1193 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1194 {
1195     wxWindow *win = (wxWindow *)this;
1196     while ( win && !win->HasCustomPalette() )
1197     {
1198         win = win->GetParent();
1199     }
1200
1201     return win;
1202 }
1203
1204 #endif // wxUSE_PALETTE
1205
1206 #if wxUSE_CARET
1207 void wxWindowBase::SetCaret(wxCaret *caret)
1208 {
1209     if ( m_caret )
1210     {
1211         delete m_caret;
1212     }
1213
1214     m_caret = caret;
1215
1216     if ( m_caret )
1217     {
1218         wxASSERT_MSG( m_caret->GetWindow() == this,
1219                       wxT("caret should be created associated to this window") );
1220     }
1221 }
1222 #endif // wxUSE_CARET
1223
1224 #if wxUSE_VALIDATORS
1225 // ----------------------------------------------------------------------------
1226 // validators
1227 // ----------------------------------------------------------------------------
1228
1229 void wxWindowBase::SetValidator(const wxValidator& validator)
1230 {
1231     if ( m_windowValidator )
1232         delete m_windowValidator;
1233
1234     m_windowValidator = (wxValidator *)validator.Clone();
1235
1236     if ( m_windowValidator )
1237         m_windowValidator->SetWindow(this);
1238 }
1239 #endif // wxUSE_VALIDATORS
1240
1241 // ----------------------------------------------------------------------------
1242 // update region stuff
1243 // ----------------------------------------------------------------------------
1244
1245 wxRect wxWindowBase::GetUpdateClientRect() const
1246 {
1247     wxRegion rgnUpdate = GetUpdateRegion();
1248     rgnUpdate.Intersect(GetClientRect());
1249     wxRect rectUpdate = rgnUpdate.GetBox();
1250     wxPoint ptOrigin = GetClientAreaOrigin();
1251     rectUpdate.x -= ptOrigin.x;
1252     rectUpdate.y -= ptOrigin.y;
1253
1254     return rectUpdate;
1255 }
1256
1257 bool wxWindowBase::IsExposed(int x, int y) const
1258 {
1259     return m_updateRegion.Contains(x, y) != wxOutRegion;
1260 }
1261
1262 bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
1263 {
1264     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1265 }
1266
1267 void wxWindowBase::ClearBackground()
1268 {
1269     // wxGTK uses its own version, no need to add never used code
1270 #ifndef __WXGTK__
1271     wxClientDC dc((wxWindow *)this);
1272     wxBrush brush(GetBackgroundColour(), wxSOLID);
1273     dc.SetBackground(brush);
1274     dc.Clear();
1275 #endif // __WXGTK__
1276 }
1277
1278 // ----------------------------------------------------------------------------
1279 // find child window by id or name
1280 // ----------------------------------------------------------------------------
1281
1282 wxWindow *wxWindowBase::FindWindow(long id) const
1283 {
1284     if ( id == m_windowId )
1285         return (wxWindow *)this;
1286
1287     wxWindowBase *res = (wxWindow *)NULL;
1288     wxWindowList::compatibility_iterator node;
1289     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1290     {
1291         wxWindowBase *child = node->GetData();
1292         res = child->FindWindow( id );
1293     }
1294
1295     return (wxWindow *)res;
1296 }
1297
1298 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1299 {
1300     if ( name == m_windowName )
1301         return (wxWindow *)this;
1302
1303     wxWindowBase *res = (wxWindow *)NULL;
1304     wxWindowList::compatibility_iterator node;
1305     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1306     {
1307         wxWindow *child = node->GetData();
1308         res = child->FindWindow(name);
1309     }
1310
1311     return (wxWindow *)res;
1312 }
1313
1314
1315 // find any window by id or name or label: If parent is non-NULL, look through
1316 // children for a label or title matching the specified string. If NULL, look
1317 // through all top-level windows.
1318 //
1319 // to avoid duplicating code we reuse the same helper function but with
1320 // different comparators
1321
1322 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1323                                 const wxString& label, long id);
1324
1325 static
1326 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1327                            long WXUNUSED(id))
1328 {
1329     return win->GetLabel() == label;
1330 }
1331
1332 static
1333 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1334                           long WXUNUSED(id))
1335 {
1336     return win->GetName() == label;
1337 }
1338
1339 static
1340 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1341                         long id)
1342 {
1343     return win->GetId() == id;
1344 }
1345
1346 // recursive helper for the FindWindowByXXX() functions
1347 static
1348 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1349                                   const wxString& label,
1350                                   long id,
1351                                   wxFindWindowCmp cmp)
1352 {
1353     if ( parent )
1354     {
1355         // see if this is the one we're looking for
1356         if ( (*cmp)(parent, label, id) )
1357             return (wxWindow *)parent;
1358
1359         // It wasn't, so check all its children
1360         for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1361               node;
1362               node = node->GetNext() )
1363         {
1364             // recursively check each child
1365             wxWindow *win = (wxWindow *)node->GetData();
1366             wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1367             if (retwin)
1368                 return retwin;
1369         }
1370     }
1371
1372     // Not found
1373     return NULL;
1374 }
1375
1376 // helper for FindWindowByXXX()
1377 static
1378 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1379                              const wxString& label,
1380                              long id,
1381                              wxFindWindowCmp cmp)
1382 {
1383     if ( parent )
1384     {
1385         // just check parent and all its children
1386         return wxFindWindowRecursively(parent, label, id, cmp);
1387     }
1388
1389     // start at very top of wx's windows
1390     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1391           node;
1392           node = node->GetNext() )
1393     {
1394         // recursively check each window & its children
1395         wxWindow *win = node->GetData();
1396         wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1397         if (retwin)
1398             return retwin;
1399     }
1400
1401     return NULL;
1402 }
1403
1404 /* static */
1405 wxWindow *
1406 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1407 {
1408     return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1409 }
1410
1411 /* static */
1412 wxWindow *
1413 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1414 {
1415     wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1416
1417     if ( !win )
1418     {
1419         // fall back to the label
1420         win = FindWindowByLabel(title, parent);
1421     }
1422
1423     return win;
1424 }
1425
1426 /* static */
1427 wxWindow *
1428 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1429 {
1430     return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1431 }
1432
1433 // ----------------------------------------------------------------------------
1434 // dialog oriented functions
1435 // ----------------------------------------------------------------------------
1436
1437 void wxWindowBase::MakeModal(bool modal)
1438 {
1439     // Disable all other windows
1440     if ( IsTopLevel() )
1441     {
1442         wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1443         while (node)
1444         {
1445             wxWindow *win = node->GetData();
1446             if (win != this)
1447                 win->Enable(!modal);
1448
1449             node = node->GetNext();
1450         }
1451     }
1452 }
1453
1454 bool wxWindowBase::Validate()
1455 {
1456 #if wxUSE_VALIDATORS
1457     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1458
1459     wxWindowList::compatibility_iterator node;
1460     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1461     {
1462         wxWindowBase *child = node->GetData();
1463         wxValidator *validator = child->GetValidator();
1464         if ( validator && !validator->Validate((wxWindow *)this) )
1465         {
1466             return false;
1467         }
1468
1469         if ( recurse && !child->Validate() )
1470         {
1471             return false;
1472         }
1473     }
1474 #endif // wxUSE_VALIDATORS
1475
1476     return true;
1477 }
1478
1479 bool wxWindowBase::TransferDataToWindow()
1480 {
1481 #if wxUSE_VALIDATORS
1482     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1483
1484     wxWindowList::compatibility_iterator node;
1485     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1486     {
1487         wxWindowBase *child = node->GetData();
1488         wxValidator *validator = child->GetValidator();
1489         if ( validator && !validator->TransferToWindow() )
1490         {
1491             wxLogWarning(_("Could not transfer data to window"));
1492 #if wxUSE_LOG
1493             wxLog::FlushActive();
1494 #endif // wxUSE_LOG
1495
1496             return false;
1497         }
1498
1499         if ( recurse )
1500         {
1501             if ( !child->TransferDataToWindow() )
1502             {
1503                 // warning already given
1504                 return false;
1505             }
1506         }
1507     }
1508 #endif // wxUSE_VALIDATORS
1509
1510     return true;
1511 }
1512
1513 bool wxWindowBase::TransferDataFromWindow()
1514 {
1515 #if wxUSE_VALIDATORS
1516     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1517
1518     wxWindowList::compatibility_iterator node;
1519     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1520     {
1521         wxWindow *child = node->GetData();
1522         wxValidator *validator = child->GetValidator();
1523         if ( validator && !validator->TransferFromWindow() )
1524         {
1525             // nop warning here because the application is supposed to give
1526             // one itself - we don't know here what might have gone wrongly
1527
1528             return false;
1529         }
1530
1531         if ( recurse )
1532         {
1533             if ( !child->TransferDataFromWindow() )
1534             {
1535                 // warning already given
1536                 return false;
1537             }
1538         }
1539     }
1540 #endif // wxUSE_VALIDATORS
1541
1542     return true;
1543 }
1544
1545 void wxWindowBase::InitDialog()
1546 {
1547     wxInitDialogEvent event(GetId());
1548     event.SetEventObject( this );
1549     GetEventHandler()->ProcessEvent(event);
1550 }
1551
1552 // ----------------------------------------------------------------------------
1553 // context-sensitive help support
1554 // ----------------------------------------------------------------------------
1555
1556 #if wxUSE_HELP
1557
1558 // associate this help text with this window
1559 void wxWindowBase::SetHelpText(const wxString& text)
1560 {
1561     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1562     if ( helpProvider )
1563     {
1564         helpProvider->AddHelp(this, text);
1565     }
1566 }
1567
1568 // associate this help text with all windows with the same id as this
1569 // one
1570 void wxWindowBase::SetHelpTextForId(const wxString& text)
1571 {
1572     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1573     if ( helpProvider )
1574     {
1575         helpProvider->AddHelp(GetId(), text);
1576     }
1577 }
1578
1579 // get the help string associated with this window (may be empty)
1580 wxString wxWindowBase::GetHelpText() const
1581 {
1582     wxString text;
1583     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1584     if ( helpProvider )
1585     {
1586         text = helpProvider->GetHelp(this);
1587     }
1588
1589     return text;
1590 }
1591
1592 // show help for this window
1593 void wxWindowBase::OnHelp(wxHelpEvent& event)
1594 {
1595     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1596     if ( helpProvider )
1597     {
1598         if ( helpProvider->ShowHelp(this) )
1599         {
1600             // skip the event.Skip() below
1601             return;
1602         }
1603     }
1604
1605     event.Skip();
1606 }
1607
1608 #endif // wxUSE_HELP
1609
1610 // ----------------------------------------------------------------------------
1611 // tooltipsroot.Replace("\\", "/");
1612 // ----------------------------------------------------------------------------
1613
1614 #if wxUSE_TOOLTIPS
1615
1616 void wxWindowBase::SetToolTip( const wxString &tip )
1617 {
1618     // don't create the new tooltip if we already have one
1619     if ( m_tooltip )
1620     {
1621         m_tooltip->SetTip( tip );
1622     }
1623     else
1624     {
1625         SetToolTip( new wxToolTip( tip ) );
1626     }
1627
1628     // setting empty tooltip text does not remove the tooltip any more - use
1629     // SetToolTip((wxToolTip *)NULL) for this
1630 }
1631
1632 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1633 {
1634     if ( m_tooltip )
1635         delete m_tooltip;
1636
1637     m_tooltip = tooltip;
1638 }
1639
1640 #endif // wxUSE_TOOLTIPS
1641
1642 // ----------------------------------------------------------------------------
1643 // constraints and sizers
1644 // ----------------------------------------------------------------------------
1645
1646 #if wxUSE_CONSTRAINTS
1647
1648 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1649 {
1650     if ( m_constraints )
1651     {
1652         UnsetConstraints(m_constraints);
1653         delete m_constraints;
1654     }
1655     m_constraints = constraints;
1656     if ( m_constraints )
1657     {
1658         // Make sure other windows know they're part of a 'meaningful relationship'
1659         if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1660             m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1661         if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1662             m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1663         if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1664             m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1665         if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1666             m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1667         if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1668             m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1669         if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1670             m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1671         if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1672             m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1673         if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1674             m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1675     }
1676 }
1677
1678 // This removes any dangling pointers to this window in other windows'
1679 // constraintsInvolvedIn lists.
1680 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1681 {
1682     if ( c )
1683     {
1684         if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1685             c->left.GetOtherWindow()->RemoveConstraintReference(this);
1686         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1687             c->top.GetOtherWindow()->RemoveConstraintReference(this);
1688         if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1689             c->right.GetOtherWindow()->RemoveConstraintReference(this);
1690         if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1691             c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1692         if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1693             c->width.GetOtherWindow()->RemoveConstraintReference(this);
1694         if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1695             c->height.GetOtherWindow()->RemoveConstraintReference(this);
1696         if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1697             c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1698         if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1699             c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1700     }
1701 }
1702
1703 // Back-pointer to other windows we're involved with, so if we delete this
1704 // window, we must delete any constraints we're involved with.
1705 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1706 {
1707     if ( !m_constraintsInvolvedIn )
1708         m_constraintsInvolvedIn = new wxWindowList;
1709     if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1710         m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1711 }
1712
1713 // REMOVE back-pointer to other windows we're involved with.
1714 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1715 {
1716     if ( m_constraintsInvolvedIn )
1717         m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1718 }
1719
1720 // Reset any constraints that mention this window
1721 void wxWindowBase::DeleteRelatedConstraints()
1722 {
1723     if ( m_constraintsInvolvedIn )
1724     {
1725         wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1726         while (node)
1727         {
1728             wxWindow *win = node->GetData();
1729             wxLayoutConstraints *constr = win->GetConstraints();
1730
1731             // Reset any constraints involving this window
1732             if ( constr )
1733             {
1734                 constr->left.ResetIfWin(this);
1735                 constr->top.ResetIfWin(this);
1736                 constr->right.ResetIfWin(this);
1737                 constr->bottom.ResetIfWin(this);
1738                 constr->width.ResetIfWin(this);
1739                 constr->height.ResetIfWin(this);
1740                 constr->centreX.ResetIfWin(this);
1741                 constr->centreY.ResetIfWin(this);
1742             }
1743
1744             wxWindowList::compatibility_iterator next = node->GetNext();
1745             m_constraintsInvolvedIn->Erase(node);
1746             node = next;
1747         }
1748
1749         delete m_constraintsInvolvedIn;
1750         m_constraintsInvolvedIn = (wxWindowList *) NULL;
1751     }
1752 }
1753
1754 #endif // wxUSE_CONSTRAINTS
1755
1756 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1757 {
1758     if ( sizer == m_windowSizer)
1759         return;
1760
1761     if ( deleteOld )
1762         delete m_windowSizer;
1763
1764     m_windowSizer = sizer;
1765
1766     SetAutoLayout( sizer != NULL );
1767 }
1768
1769 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1770 {
1771     SetSizer( sizer, deleteOld );
1772     sizer->SetSizeHints( (wxWindow*) this );
1773 }
1774
1775
1776 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1777 {
1778     // adding a window to a sizer twice is going to result in fatal and
1779     // hard to debug problems later because when deleting the second
1780     // associated wxSizerItem we're going to dereference a dangling
1781     // pointer; so try to detect this as early as possible
1782     wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1783                   _T("Adding a window to the same sizer twice?") );
1784
1785     m_containingSizer = sizer;
1786 }
1787
1788 #if wxUSE_CONSTRAINTS
1789
1790 void wxWindowBase::SatisfyConstraints()
1791 {
1792     wxLayoutConstraints *constr = GetConstraints();
1793     bool wasOk = constr && constr->AreSatisfied();
1794
1795     ResetConstraints();   // Mark all constraints as unevaluated
1796
1797     int noChanges = 1;
1798
1799     // if we're a top level panel (i.e. our parent is frame/dialog), our
1800     // own constraints will never be satisfied any more unless we do it
1801     // here
1802     if ( wasOk )
1803     {
1804         while ( noChanges > 0 )
1805         {
1806             LayoutPhase1(&noChanges);
1807         }
1808     }
1809
1810     LayoutPhase2(&noChanges);
1811 }
1812
1813 #endif // wxUSE_CONSTRAINTS
1814
1815 bool wxWindowBase::Layout()
1816 {
1817     // If there is a sizer, use it instead of the constraints
1818     if ( GetSizer() )
1819     {
1820         int w, h;
1821         GetVirtualSize(&w, &h);
1822         GetSizer()->SetDimension( 0, 0, w, h );
1823     }
1824 #if wxUSE_CONSTRAINTS
1825     else
1826     {
1827         SatisfyConstraints(); // Find the right constraints values
1828         SetConstraintSizes(); // Recursively set the real window sizes
1829     }
1830 #endif
1831
1832     return true;
1833 }
1834
1835 #if wxUSE_CONSTRAINTS
1836
1837 // first phase of the constraints evaluation: set our own constraints
1838 bool wxWindowBase::LayoutPhase1(int *noChanges)
1839 {
1840     wxLayoutConstraints *constr = GetConstraints();
1841
1842     return !constr || constr->SatisfyConstraints(this, noChanges);
1843 }
1844
1845 // second phase: set the constraints for our children
1846 bool wxWindowBase::LayoutPhase2(int *noChanges)
1847 {
1848     *noChanges = 0;
1849
1850     // Layout children
1851     DoPhase(1);
1852
1853     // Layout grand children
1854     DoPhase(2);
1855
1856     return true;
1857 }
1858
1859 // Do a phase of evaluating child constraints
1860 bool wxWindowBase::DoPhase(int phase)
1861 {
1862     // the list containing the children for which the constraints are already
1863     // set correctly
1864     wxWindowList succeeded;
1865
1866     // the max number of iterations we loop before concluding that we can't set
1867     // the constraints
1868     static const int maxIterations = 500;
1869
1870     for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1871     {
1872         int noChanges = 0;
1873
1874         // loop over all children setting their constraints
1875         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1876               node;
1877               node = node->GetNext() )
1878         {
1879             wxWindow *child = node->GetData();
1880             if ( child->IsTopLevel() )
1881             {
1882                 // top level children are not inside our client area
1883                 continue;
1884             }
1885
1886             if ( !child->GetConstraints() || succeeded.Find(child) )
1887             {
1888                 // this one is either already ok or nothing we can do about it
1889                 continue;
1890             }
1891
1892             int tempNoChanges = 0;
1893             bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1894                                       : child->LayoutPhase2(&tempNoChanges);
1895             noChanges += tempNoChanges;
1896
1897             if ( success )
1898             {
1899                 succeeded.Append(child);
1900             }
1901         }
1902
1903         if ( !noChanges )
1904         {
1905             // constraints are set
1906             break;
1907         }
1908     }
1909
1910     return true;
1911 }
1912
1913 void wxWindowBase::ResetConstraints()
1914 {
1915     wxLayoutConstraints *constr = GetConstraints();
1916     if ( constr )
1917     {
1918         constr->left.SetDone(false);
1919         constr->top.SetDone(false);
1920         constr->right.SetDone(false);
1921         constr->bottom.SetDone(false);
1922         constr->width.SetDone(false);
1923         constr->height.SetDone(false);
1924         constr->centreX.SetDone(false);
1925         constr->centreY.SetDone(false);
1926     }
1927
1928     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1929     while (node)
1930     {
1931         wxWindow *win = node->GetData();
1932         if ( !win->IsTopLevel() )
1933             win->ResetConstraints();
1934         node = node->GetNext();
1935     }
1936 }
1937
1938 // Need to distinguish between setting the 'fake' size for windows and sizers,
1939 // and setting the real values.
1940 void wxWindowBase::SetConstraintSizes(bool recurse)
1941 {
1942     wxLayoutConstraints *constr = GetConstraints();
1943     if ( constr && constr->AreSatisfied() )
1944     {
1945         int x = constr->left.GetValue();
1946         int y = constr->top.GetValue();
1947         int w = constr->width.GetValue();
1948         int h = constr->height.GetValue();
1949
1950         if ( (constr->width.GetRelationship() != wxAsIs ) ||
1951              (constr->height.GetRelationship() != wxAsIs) )
1952         {
1953             SetSize(x, y, w, h);
1954         }
1955         else
1956         {
1957             // If we don't want to resize this window, just move it...
1958             Move(x, y);
1959         }
1960     }
1961     else if ( constr )
1962     {
1963         wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1964                    GetClassInfo()->GetClassName(),
1965                    GetName().c_str());
1966     }
1967
1968     if ( recurse )
1969     {
1970         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1971         while (node)
1972         {
1973             wxWindow *win = node->GetData();
1974             if ( !win->IsTopLevel() && win->GetConstraints() )
1975                 win->SetConstraintSizes();
1976             node = node->GetNext();
1977         }
1978     }
1979 }
1980
1981 // Only set the size/position of the constraint (if any)
1982 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
1983 {
1984     wxLayoutConstraints *constr = GetConstraints();
1985     if ( constr )
1986     {
1987         if ( x != wxDefaultCoord )
1988         {
1989             constr->left.SetValue(x);
1990             constr->left.SetDone(true);
1991         }
1992         if ( y != wxDefaultCoord )
1993         {
1994             constr->top.SetValue(y);
1995             constr->top.SetDone(true);
1996         }
1997         if ( w != wxDefaultCoord )
1998         {
1999             constr->width.SetValue(w);
2000             constr->width.SetDone(true);
2001         }
2002         if ( h != wxDefaultCoord )
2003         {
2004             constr->height.SetValue(h);
2005             constr->height.SetDone(true);
2006         }
2007     }
2008 }
2009
2010 void wxWindowBase::MoveConstraint(int x, int y)
2011 {
2012     wxLayoutConstraints *constr = GetConstraints();
2013     if ( constr )
2014     {
2015         if ( x != wxDefaultCoord )
2016         {
2017             constr->left.SetValue(x);
2018             constr->left.SetDone(true);
2019         }
2020         if ( y != wxDefaultCoord )
2021         {
2022             constr->top.SetValue(y);
2023             constr->top.SetDone(true);
2024         }
2025     }
2026 }
2027
2028 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
2029 {
2030     wxLayoutConstraints *constr = GetConstraints();
2031     if ( constr )
2032     {
2033         *w = constr->width.GetValue();
2034         *h = constr->height.GetValue();
2035     }
2036     else
2037         GetSize(w, h);
2038 }
2039
2040 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
2041 {
2042     wxLayoutConstraints *constr = GetConstraints();
2043     if ( constr )
2044     {
2045         *w = constr->width.GetValue();
2046         *h = constr->height.GetValue();
2047     }
2048     else
2049         GetClientSize(w, h);
2050 }
2051
2052 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
2053 {
2054     wxLayoutConstraints *constr = GetConstraints();
2055     if ( constr )
2056     {
2057         *x = constr->left.GetValue();
2058         *y = constr->top.GetValue();
2059     }
2060     else
2061         GetPosition(x, y);
2062 }
2063
2064 #endif // wxUSE_CONSTRAINTS
2065
2066 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
2067 {
2068     // don't do it for the dialogs/frames - they float independently of their
2069     // parent
2070     if ( !IsTopLevel() )
2071     {
2072         wxWindow *parent = GetParent();
2073         if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
2074         {
2075             wxPoint pt(parent->GetClientAreaOrigin());
2076             x += pt.x;
2077             y += pt.y;
2078         }
2079     }
2080 }
2081
2082 // ----------------------------------------------------------------------------
2083 // do Update UI processing for child controls
2084 // ----------------------------------------------------------------------------
2085
2086 void wxWindowBase::UpdateWindowUI(long flags)
2087 {
2088     wxUpdateUIEvent event(GetId());
2089     event.SetEventObject(this);
2090
2091     if ( GetEventHandler()->ProcessEvent(event) )
2092     {
2093         DoUpdateWindowUI(event);
2094     }
2095
2096     if (flags & wxUPDATE_UI_RECURSE)
2097     {
2098         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2099         while (node)
2100         {
2101             wxWindow* child = (wxWindow*) node->GetData();
2102             child->UpdateWindowUI(flags);
2103             node = node->GetNext();
2104         }
2105     }
2106 }
2107
2108 // do the window-specific processing after processing the update event
2109 // TODO: take specific knowledge out of this function and
2110 // put in each control's base class. Unfortunately we don't
2111 // yet have base implementation files for wxCheckBox and wxRadioButton.
2112 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2113 {
2114     if ( event.GetSetEnabled() )
2115         Enable(event.GetEnabled());
2116
2117 #if wxUSE_CONTROLS
2118     if ( event.GetSetText() )
2119     {
2120         wxControl *control = wxDynamicCastThis(wxControl);
2121         if ( control )
2122         {
2123             if ( event.GetText() != control->GetLabel() )
2124                 control->SetLabel(event.GetText());
2125         }
2126     }
2127 #endif // wxUSE_CONTROLS
2128
2129     if ( event.GetSetChecked() )
2130     {
2131 #if wxUSE_CHECKBOX
2132         wxCheckBox *checkbox = wxDynamicCastThis(wxCheckBox);
2133         if ( checkbox )
2134         {
2135             checkbox->SetValue(event.GetChecked());
2136         }
2137 #endif // wxUSE_CHECKBOX
2138
2139 #if wxUSE_RADIOBTN
2140         wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);
2141         if ( radiobtn )
2142         {
2143             radiobtn->SetValue(event.GetChecked());
2144         }
2145 #endif // wxUSE_RADIOBTN
2146     }
2147 }
2148
2149 #if 0
2150 // call internal idle recursively
2151 // may be obsolete (wait until OnIdle scheme stabilises)
2152 void wxWindowBase::ProcessInternalIdle()
2153 {
2154     OnInternalIdle();
2155
2156     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2157     while (node)
2158     {
2159         wxWindow *child = node->GetData();
2160         child->ProcessInternalIdle();
2161         node = node->GetNext();
2162     }
2163 }
2164 #endif
2165
2166 // ----------------------------------------------------------------------------
2167 // dialog units translations
2168 // ----------------------------------------------------------------------------
2169
2170 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2171 {
2172     int charWidth = GetCharWidth();
2173     int charHeight = GetCharHeight();
2174     wxPoint pt2 = wxDefaultPosition;
2175     if (pt.x != wxDefaultCoord)
2176         pt2.x = (int) ((pt.x * 4) / charWidth);
2177     if (pt.y != wxDefaultCoord)
2178         pt2.y = (int) ((pt.y * 8) / charHeight);
2179
2180     return pt2;
2181 }
2182
2183 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2184 {
2185     int charWidth = GetCharWidth();
2186     int charHeight = GetCharHeight();
2187     wxPoint pt2 = wxDefaultPosition;
2188     if (pt.x != wxDefaultCoord)
2189         pt2.x = (int) ((pt.x * charWidth) / 4);
2190     if (pt.y != wxDefaultCoord)
2191         pt2.y = (int) ((pt.y * charHeight) / 8);
2192
2193     return pt2;
2194 }
2195
2196 // ----------------------------------------------------------------------------
2197 // event handlers
2198 // ----------------------------------------------------------------------------
2199
2200 // propagate the colour change event to the subwindows
2201 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2202 {
2203     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2204     while ( node )
2205     {
2206         // Only propagate to non-top-level windows
2207         wxWindow *win = node->GetData();
2208         if ( !win->IsTopLevel() )
2209         {
2210             wxSysColourChangedEvent event2;
2211             event.SetEventObject(win);
2212             win->GetEventHandler()->ProcessEvent(event2);
2213         }
2214
2215         node = node->GetNext();
2216     }
2217
2218     Refresh();
2219 }
2220
2221 // the default action is to populate dialog with data when it's created,
2222 // and nudge the UI into displaying itself correctly in case
2223 // we've turned the wxUpdateUIEvents frequency down low.
2224 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2225 {
2226     TransferDataToWindow();
2227
2228     // Update the UI at this point
2229     UpdateWindowUI(wxUPDATE_UI_RECURSE);
2230 }
2231
2232 // process Ctrl-Alt-mclick
2233 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2234 {
2235 #if wxUSE_MSGDLG
2236     if ( event.ControlDown() && event.AltDown() )
2237     {
2238         // don't translate these strings
2239         wxString port;
2240
2241 #ifdef __WXUNIVERSAL__
2242         port = _T("Univ/");
2243 #endif // __WXUNIVERSAL__
2244
2245         switch ( wxGetOsVersion() )
2246         {
2247             case wxMOTIF_X:     port += _T("Motif"); break;
2248             case wxMAC:
2249             case wxMAC_DARWIN:  port += _T("Mac"); break;
2250             case wxBEOS:        port += _T("BeOS"); break;
2251             case wxGTK:
2252             case wxGTK_WIN32:
2253             case wxGTK_OS2:
2254             case wxGTK_BEOS:    port += _T("GTK"); break;
2255             case wxWINDOWS:
2256             case wxPENWINDOWS:
2257             case wxWINDOWS_NT:
2258             case wxWIN32S:
2259             case wxWIN95:
2260             case wxWIN386:      port += _T("MS Windows"); break;
2261             case wxMGL_UNIX:
2262             case wxMGL_X:
2263             case wxMGL_WIN32:
2264             case wxMGL_OS2:     port += _T("MGL"); break;
2265             case wxWINDOWS_OS2:
2266             case wxOS2_PM:      port += _T("OS/2"); break;
2267             default:            port += _T("unknown"); break;
2268         }
2269
2270         wxMessageBox(wxString::Format(
2271                                       _T(
2272                                         "       wxWidgets Library (%s port)\nVersion %u.%u.%u%s%s, compiled at %s %s\n   Copyright (c) 1995-2005 wxWidgets team"
2273                                         ),
2274                                       port.c_str(),
2275                                       wxMAJOR_VERSION,
2276                                       wxMINOR_VERSION,
2277                                       wxRELEASE_NUMBER,
2278 #if wxUSE_UNICODE
2279                                       L" (Unicode)",
2280 #else
2281                                       "",
2282 #endif
2283 #ifdef __WXDEBUG__
2284                                       _T(" Debug build"),
2285 #else
2286                                       wxEmptyString,
2287 #endif
2288                                       __TDATE__,
2289                                       __TTIME__
2290                                      ),
2291                      _T("wxWidgets information"),
2292                      wxICON_INFORMATION | wxOK,
2293                      (wxWindow *)this);
2294     }
2295     else
2296 #endif // wxUSE_MSGDLG
2297     {
2298         event.Skip();
2299     }
2300 }
2301
2302 // ----------------------------------------------------------------------------
2303 // accessibility
2304 // ----------------------------------------------------------------------------
2305
2306 #if wxUSE_ACCESSIBILITY
2307 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2308 {
2309     if (m_accessible && (accessible != m_accessible))
2310         delete m_accessible;
2311     m_accessible = accessible;
2312     if (m_accessible)
2313         m_accessible->SetWindow((wxWindow*) this);
2314 }
2315
2316 // Returns the accessible object, creating if necessary.
2317 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2318 {
2319     if (!m_accessible)
2320         m_accessible = CreateAccessible();
2321     return m_accessible;
2322 }
2323
2324 // Override to create a specific accessible object.
2325 wxAccessible* wxWindowBase::CreateAccessible()
2326 {
2327     return new wxWindowAccessible((wxWindow*) this);
2328 }
2329
2330 #endif
2331
2332 // ----------------------------------------------------------------------------
2333 // list classes implementation
2334 // ----------------------------------------------------------------------------
2335
2336 #if wxUSE_STL
2337
2338 #include <wx/listimpl.cpp>
2339 WX_DEFINE_LIST(wxWindowList);
2340
2341 #else
2342
2343 void wxWindowListNode::DeleteData()
2344 {
2345     delete (wxWindow *)GetData();
2346 }
2347
2348 #endif
2349
2350 // ----------------------------------------------------------------------------
2351 // borders
2352 // ----------------------------------------------------------------------------
2353
2354 wxBorder wxWindowBase::GetBorder(long flags) const
2355 {
2356     wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2357     if ( border == wxBORDER_DEFAULT )
2358     {
2359         border = GetDefaultBorder();
2360     }
2361
2362     return border;
2363 }
2364
2365 wxBorder wxWindowBase::GetDefaultBorder() const
2366 {
2367     return wxBORDER_NONE;
2368 }
2369
2370 // ----------------------------------------------------------------------------
2371 // hit testing
2372 // ----------------------------------------------------------------------------
2373
2374 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2375 {
2376     // here we just check if the point is inside the window or not
2377
2378     // check the top and left border first
2379     bool outside = x < 0 || y < 0;
2380     if ( !outside )
2381     {
2382         // check the right and bottom borders too
2383         wxSize size = GetSize();
2384         outside = x >= size.x || y >= size.y;
2385     }
2386
2387     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2388 }
2389
2390 // ----------------------------------------------------------------------------
2391 // mouse capture
2392 // ----------------------------------------------------------------------------
2393
2394 struct WXDLLEXPORT wxWindowNext
2395 {
2396     wxWindow *win;
2397     wxWindowNext *next;
2398 } *wxWindowBase::ms_winCaptureNext = NULL;
2399
2400 void wxWindowBase::CaptureMouse()
2401 {
2402     wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), this);
2403
2404     wxWindow *winOld = GetCapture();
2405     if ( winOld )
2406     {
2407         ((wxWindowBase*) winOld)->DoReleaseMouse();
2408
2409         // save it on stack
2410         wxWindowNext *item = new wxWindowNext;
2411         item->win = winOld;
2412         item->next = ms_winCaptureNext;
2413         ms_winCaptureNext = item;
2414     }
2415     //else: no mouse capture to save
2416
2417     DoCaptureMouse();
2418 }
2419
2420 void wxWindowBase::ReleaseMouse()
2421 {
2422     wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), this);
2423
2424     wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2425
2426     DoReleaseMouse();
2427
2428     if ( ms_winCaptureNext )
2429     {
2430         ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2431
2432         wxWindowNext *item = ms_winCaptureNext;
2433         ms_winCaptureNext = item->next;
2434         delete item;
2435     }
2436     //else: stack is empty, no previous capture
2437
2438     wxLogTrace(_T("mousecapture"),
2439         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2440         GetCapture());
2441 }
2442
2443 #if wxUSE_HOTKEY
2444
2445 bool
2446 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2447                              int WXUNUSED(modifiers),
2448                              int WXUNUSED(keycode))
2449 {
2450     // not implemented
2451     return false;
2452 }
2453
2454 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2455 {
2456     // not implemented
2457     return false;
2458 }
2459
2460 #endif // wxUSE_HOTKEY
2461
2462 void wxWindowBase::SendDestroyEvent()
2463 {
2464     wxWindowDestroyEvent event;
2465     event.SetEventObject(this);
2466     event.SetId(GetId());
2467     GetEventHandler()->ProcessEvent(event);
2468 }
2469
2470 // ----------------------------------------------------------------------------
2471 // event processing
2472 // ----------------------------------------------------------------------------
2473
2474 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2475 {
2476 #if wxUSE_VALIDATORS
2477     // Can only use the validator of the window which
2478     // is receiving the event
2479     if ( event.GetEventObject() == this )
2480     {
2481         wxValidator *validator = GetValidator();
2482         if ( validator && validator->ProcessEvent(event) )
2483         {
2484             return true;
2485         }
2486     }
2487 #endif // wxUSE_VALIDATORS
2488
2489     return false;
2490 }
2491
2492 bool wxWindowBase::TryParent(wxEvent& event)
2493 {
2494     // carry on up the parent-child hierarchy if the propgation count hasn't
2495     // reached zero yet
2496     if ( event.ShouldPropagate() )
2497     {
2498         // honour the requests to stop propagation at this window: this is
2499         // used by the dialogs, for example, to prevent processing the events
2500         // from the dialog controls in the parent frame which rarely, if ever,
2501         // makes sense
2502         if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2503         {
2504             wxWindow *parent = GetParent();
2505             if ( parent && !parent->IsBeingDeleted() )
2506             {
2507                 wxPropagateOnce propagateOnce(event);
2508
2509                 return parent->GetEventHandler()->ProcessEvent(event);
2510             }
2511         }
2512     }
2513
2514     return wxEvtHandler::TryParent(event);
2515 }
2516
2517 // ----------------------------------------------------------------------------
2518 // keyboard navigation
2519 // ----------------------------------------------------------------------------
2520
2521 // Navigates in the specified direction.
2522 bool wxWindowBase::Navigate(int flags)
2523 {
2524     wxNavigationKeyEvent eventNav;
2525     eventNav.SetFlags(flags);
2526     eventNav.SetEventObject(this);
2527     if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2528     {
2529         return true;
2530     }
2531     return false;
2532 }
2533
2534 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2535 {
2536     // check that we're not a top level window
2537     wxCHECK_RET( GetParent(),
2538                     _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2539
2540     // detect the special case when we have nothing to do anyhow and when the
2541     // code below wouldn't work
2542     if ( win == this )
2543         return;
2544
2545     // find the target window in the siblings list
2546     wxWindowList& siblings = GetParent()->GetChildren();
2547     wxWindowList::compatibility_iterator i = siblings.Find(win);
2548     wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2549
2550     // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2551     // can't just move the node around
2552     wxWindow *self = (wxWindow *)this;
2553     siblings.DeleteObject(self);
2554     if ( move == MoveAfter )
2555     {
2556         i = i->GetNext();
2557     }
2558
2559     if ( i )
2560     {
2561         siblings.Insert(i, self);
2562     }
2563     else // MoveAfter and win was the last sibling
2564     {
2565         siblings.Append(self);
2566     }
2567 }
2568
2569 // ----------------------------------------------------------------------------
2570 // focus handling
2571 // ----------------------------------------------------------------------------
2572
2573 /*static*/ wxWindow* wxWindowBase::FindFocus()
2574 {
2575     wxWindowBase *win = DoFindFocus();
2576     return win ? win->GetMainWindowOfCompositeControl() : NULL;
2577 }
2578
2579 // ----------------------------------------------------------------------------
2580 // global functions
2581 // ----------------------------------------------------------------------------
2582
2583 wxWindow* wxGetTopLevelParent(wxWindow *win)
2584 {
2585     while ( win && !win->IsTopLevel() )
2586          win = win->GetParent();
2587
2588     return win;
2589 }
2590
2591 #if wxUSE_ACCESSIBILITY
2592 // ----------------------------------------------------------------------------
2593 // accessible object for windows
2594 // ----------------------------------------------------------------------------
2595
2596 // Can return either a child object, or an integer
2597 // representing the child element, starting from 1.
2598 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2599 {
2600     wxASSERT( GetWindow() != NULL );
2601     if (!GetWindow())
2602         return wxACC_FAIL;
2603
2604     return wxACC_NOT_IMPLEMENTED;
2605 }
2606
2607 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2608 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2609 {
2610     wxASSERT( GetWindow() != NULL );
2611     if (!GetWindow())
2612         return wxACC_FAIL;
2613
2614     wxWindow* win = NULL;
2615     if (elementId == 0)
2616     {
2617         win = GetWindow();
2618     }
2619     else
2620     {
2621         if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2622         {
2623             win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2624         }
2625         else
2626             return wxACC_FAIL;
2627     }
2628     if (win)
2629     {
2630         rect = win->GetRect();
2631         if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2632             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2633         return wxACC_OK;
2634     }
2635
2636     return wxACC_NOT_IMPLEMENTED;
2637 }
2638
2639 // Navigates from fromId to toId/toObject.
2640 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2641                              int* WXUNUSED(toId), wxAccessible** toObject)
2642 {
2643     wxASSERT( GetWindow() != NULL );
2644     if (!GetWindow())
2645         return wxACC_FAIL;
2646
2647     switch (navDir)
2648     {
2649     case wxNAVDIR_FIRSTCHILD:
2650         {
2651             if (GetWindow()->GetChildren().GetCount() == 0)
2652                 return wxACC_FALSE;
2653             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2654             *toObject = childWindow->GetOrCreateAccessible();
2655
2656             return wxACC_OK;
2657         }
2658     case wxNAVDIR_LASTCHILD:
2659         {
2660             if (GetWindow()->GetChildren().GetCount() == 0)
2661                 return wxACC_FALSE;
2662             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2663             *toObject = childWindow->GetOrCreateAccessible();
2664
2665             return wxACC_OK;
2666         }
2667     case wxNAVDIR_RIGHT:
2668     case wxNAVDIR_DOWN:
2669     case wxNAVDIR_NEXT:
2670         {
2671             wxWindowList::compatibility_iterator node =
2672                 wxWindowList::compatibility_iterator();
2673             if (fromId == 0)
2674             {
2675                 // Can't navigate to sibling of this window
2676                 // if we're a top-level window.
2677                 if (!GetWindow()->GetParent())
2678                     return wxACC_NOT_IMPLEMENTED;
2679
2680                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2681             }
2682             else
2683             {
2684                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2685                     node = GetWindow()->GetChildren().Item(fromId-1);
2686             }
2687
2688             if (node && node->GetNext())
2689             {
2690                 wxWindow* nextWindow = node->GetNext()->GetData();
2691                 *toObject = nextWindow->GetOrCreateAccessible();
2692                 return wxACC_OK;
2693             }
2694             else
2695                 return wxACC_FALSE;
2696         }
2697     case wxNAVDIR_LEFT:
2698     case wxNAVDIR_UP:
2699     case wxNAVDIR_PREVIOUS:
2700         {
2701             wxWindowList::compatibility_iterator node =
2702                 wxWindowList::compatibility_iterator();
2703             if (fromId == 0)
2704             {
2705                 // Can't navigate to sibling of this window
2706                 // if we're a top-level window.
2707                 if (!GetWindow()->GetParent())
2708                     return wxACC_NOT_IMPLEMENTED;
2709
2710                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2711             }
2712             else
2713             {
2714                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2715                     node = GetWindow()->GetChildren().Item(fromId-1);
2716             }
2717
2718             if (node && node->GetPrevious())
2719             {
2720                 wxWindow* previousWindow = node->GetPrevious()->GetData();
2721                 *toObject = previousWindow->GetOrCreateAccessible();
2722                 return wxACC_OK;
2723             }
2724             else
2725                 return wxACC_FALSE;
2726         }
2727     }
2728
2729     return wxACC_NOT_IMPLEMENTED;
2730 }
2731
2732 // Gets the name of the specified object.
2733 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2734 {
2735     wxASSERT( GetWindow() != NULL );
2736     if (!GetWindow())
2737         return wxACC_FAIL;
2738
2739     wxString title;
2740
2741     // If a child, leave wxWidgets to call the function on the actual
2742     // child object.
2743     if (childId > 0)
2744         return wxACC_NOT_IMPLEMENTED;
2745
2746     // This will eventually be replaced by specialised
2747     // accessible classes, one for each kind of wxWidgets
2748     // control or window.
2749 #if wxUSE_BUTTON
2750     if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2751         title = ((wxButton*) GetWindow())->GetLabel();
2752     else
2753 #endif
2754         title = GetWindow()->GetName();
2755
2756     if (!title.empty())
2757     {
2758         *name = title;
2759         return wxACC_OK;
2760     }
2761     else
2762         return wxACC_NOT_IMPLEMENTED;
2763 }
2764
2765 // Gets the number of children.
2766 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2767 {
2768     wxASSERT( GetWindow() != NULL );
2769     if (!GetWindow())
2770         return wxACC_FAIL;
2771
2772     *childId = (int) GetWindow()->GetChildren().GetCount();
2773     return wxACC_OK;
2774 }
2775
2776 // Gets the specified child (starting from 1).
2777 // If *child is NULL and return value is wxACC_OK,
2778 // this means that the child is a simple element and
2779 // not an accessible object.
2780 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2781 {
2782     wxASSERT( GetWindow() != NULL );
2783     if (!GetWindow())
2784         return wxACC_FAIL;
2785
2786     if (childId == 0)
2787     {
2788         *child = this;
2789         return wxACC_OK;
2790     }
2791
2792     if (childId > (int) GetWindow()->GetChildren().GetCount())
2793         return wxACC_FAIL;
2794
2795     wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2796     *child = childWindow->GetOrCreateAccessible();
2797     if (*child)
2798         return wxACC_OK;
2799     else
2800         return wxACC_FAIL;
2801 }
2802
2803 // Gets the parent, or NULL.
2804 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2805 {
2806     wxASSERT( GetWindow() != NULL );
2807     if (!GetWindow())
2808         return wxACC_FAIL;
2809
2810     wxWindow* parentWindow = GetWindow()->GetParent();
2811     if (!parentWindow)
2812     {
2813         *parent = NULL;
2814         return wxACC_OK;
2815     }
2816     else
2817     {
2818         *parent = parentWindow->GetOrCreateAccessible();
2819         if (*parent)
2820             return wxACC_OK;
2821         else
2822             return wxACC_FAIL;
2823     }
2824 }
2825
2826 // Performs the default action. childId is 0 (the action for this object)
2827 // or > 0 (the action for a child).
2828 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2829 // window (e.g. an edit control).
2830 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2831 {
2832     wxASSERT( GetWindow() != NULL );
2833     if (!GetWindow())
2834         return wxACC_FAIL;
2835
2836     return wxACC_NOT_IMPLEMENTED;
2837 }
2838
2839 // Gets the default action for this object (0) or > 0 (the action for a child).
2840 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2841 // string if there is no action.
2842 // The retrieved string describes the action that is performed on an object,
2843 // not what the object does as a result. For example, a toolbar button that prints
2844 // a document has a default action of "Press" rather than "Prints the current document."
2845 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2846 {
2847     wxASSERT( GetWindow() != NULL );
2848     if (!GetWindow())
2849         return wxACC_FAIL;
2850
2851     return wxACC_NOT_IMPLEMENTED;
2852 }
2853
2854 // Returns the description for this object or a child.
2855 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2856 {
2857     wxASSERT( GetWindow() != NULL );
2858     if (!GetWindow())
2859         return wxACC_FAIL;
2860
2861     wxString ht(GetWindow()->GetHelpText());
2862     if (!ht.empty())
2863     {
2864         *description = ht;
2865         return wxACC_OK;
2866     }
2867     return wxACC_NOT_IMPLEMENTED;
2868 }
2869
2870 // Returns help text for this object or a child, similar to tooltip text.
2871 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2872 {
2873     wxASSERT( GetWindow() != NULL );
2874     if (!GetWindow())
2875         return wxACC_FAIL;
2876
2877     wxString ht(GetWindow()->GetHelpText());
2878     if (!ht.empty())
2879     {
2880         *helpText = ht;
2881         return wxACC_OK;
2882     }
2883     return wxACC_NOT_IMPLEMENTED;
2884 }
2885
2886 // Returns the keyboard shortcut for this object or child.
2887 // Return e.g. ALT+K
2888 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2889 {
2890     wxASSERT( GetWindow() != NULL );
2891     if (!GetWindow())
2892         return wxACC_FAIL;
2893
2894     return wxACC_NOT_IMPLEMENTED;
2895 }
2896
2897 // Returns a role constant.
2898 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2899 {
2900     wxASSERT( GetWindow() != NULL );
2901     if (!GetWindow())
2902         return wxACC_FAIL;
2903
2904     // If a child, leave wxWidgets to call the function on the actual
2905     // child object.
2906     if (childId > 0)
2907         return wxACC_NOT_IMPLEMENTED;
2908
2909     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2910         return wxACC_NOT_IMPLEMENTED;
2911 #if wxUSE_STATUSBAR
2912     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2913         return wxACC_NOT_IMPLEMENTED;
2914 #endif
2915 #if wxUSE_TOOLBAR
2916     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2917         return wxACC_NOT_IMPLEMENTED;
2918 #endif
2919
2920     //*role = wxROLE_SYSTEM_CLIENT;
2921     *role = wxROLE_SYSTEM_CLIENT;
2922     return wxACC_OK;
2923
2924     #if 0
2925     return wxACC_NOT_IMPLEMENTED;
2926     #endif
2927 }
2928
2929 // Returns a state constant.
2930 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
2931 {
2932     wxASSERT( GetWindow() != NULL );
2933     if (!GetWindow())
2934         return wxACC_FAIL;
2935
2936     // If a child, leave wxWidgets to call the function on the actual
2937     // child object.
2938     if (childId > 0)
2939         return wxACC_NOT_IMPLEMENTED;
2940
2941     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
2942         return wxACC_NOT_IMPLEMENTED;
2943
2944 #if wxUSE_STATUSBAR
2945     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
2946         return wxACC_NOT_IMPLEMENTED;
2947 #endif
2948 #if wxUSE_TOOLBAR
2949     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
2950         return wxACC_NOT_IMPLEMENTED;
2951 #endif
2952
2953     *state = 0;
2954     return wxACC_OK;
2955
2956     #if 0
2957     return wxACC_NOT_IMPLEMENTED;
2958     #endif
2959 }
2960
2961 // Returns a localized string representing the value for the object
2962 // or child.
2963 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
2964 {
2965     wxASSERT( GetWindow() != NULL );
2966     if (!GetWindow())
2967         return wxACC_FAIL;
2968
2969     return wxACC_NOT_IMPLEMENTED;
2970 }
2971
2972 // Selects the object or child.
2973 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
2974 {
2975     wxASSERT( GetWindow() != NULL );
2976     if (!GetWindow())
2977         return wxACC_FAIL;
2978
2979     return wxACC_NOT_IMPLEMENTED;
2980 }
2981
2982 // Gets the window with the keyboard focus.
2983 // If childId is 0 and child is NULL, no object in
2984 // this subhierarchy has the focus.
2985 // If this object has the focus, child should be 'this'.
2986 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
2987 {
2988     wxASSERT( GetWindow() != NULL );
2989     if (!GetWindow())
2990         return wxACC_FAIL;
2991
2992     return wxACC_NOT_IMPLEMENTED;
2993 }
2994
2995 // Gets a variant representing the selected children
2996 // of this object.
2997 // Acceptable values:
2998 // - a null variant (IsNull() returns true)
2999 // - a list variant (GetType() == wxT("list")
3000 // - an integer representing the selected child element,
3001 //   or 0 if this object is selected (GetType() == wxT("long")
3002 // - a "void*" pointer to a wxAccessible child object
3003 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
3004 {
3005     wxASSERT( GetWindow() != NULL );
3006     if (!GetWindow())
3007         return wxACC_FAIL;
3008
3009     return wxACC_NOT_IMPLEMENTED;
3010 }
3011
3012 #endif // wxUSE_ACCESSIBILITY