src/common/wincmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/window.cpp
   3 // Purpose:     common (to all ports) wxWindow functions
   4 // Author:      Julian Smart, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     13/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/string.h"
  29     #include "wx/log.h"
  30     #include "wx/intl.h"
  31     #include "wx/frame.h"
  32     #include "wx/defs.h"
  33     #include "wx/window.h"
  34     #include "wx/control.h"
  35     #include "wx/checkbox.h"
  36     #include "wx/radiobut.h"
  37     #include "wx/statbox.h"
  38     #include "wx/textctrl.h"
  39     #include "wx/settings.h"
  40     #include "wx/dialog.h"
  41     #include "wx/msgdlg.h"
  42     #include "wx/statusbr.h"
  43     #include "wx/toolbar.h"
  44     #include "wx/dcclient.h"
  45 #endif //WX_PRECOMP
  46
  47 #if defined(__WXMAC__) && wxUSE_SCROLLBAR
  48     #include "wx/scrolbar.h"
  49 #endif
  50
  51 #if wxUSE_CONSTRAINTS
  52     #include "wx/layout.h"
  53 #endif // wxUSE_CONSTRAINTS
  54
  55 #include "wx/sizer.h"
  56
  57 #if wxUSE_DRAG_AND_DROP
  58     #include "wx/dnd.h"
  59 #endif // wxUSE_DRAG_AND_DROP
  60
  61 #if wxUSE_ACCESSIBILITY
  62     #include "wx/access.h"
  63 #endif
  64
  65 #if wxUSE_HELP
  66     #include "wx/cshelp.h"
  67 #endif // wxUSE_HELP
  68
  69 #if wxUSE_TOOLTIPS
  70     #include "wx/tooltip.h"
  71 #endif // wxUSE_TOOLTIPS
  72
  73 #if wxUSE_CARET
  74     #include "wx/caret.h"
  75 #endif // wxUSE_CARET
  76
  77 #if wxUSE_DISPLAY
  78     #include "wx/display.h"
  79 #endif
  80
  81 #if wxUSE_SYSTEM_OPTIONS
  82     #include "wx/sysopt.h"
  83 #endif
  84
  85 // For reporting compile- and runtime version of GTK+ in the ctrl+alt+mclick dialog.
  86 // The gtk includes don't pull any other headers in, at least not on my system - MR
  87 #ifdef __WXGTK__
  88     #ifdef __WXGTK20__
  89         #include <gtk/gtkversion.h>
  90     #else
  91         #include <gtk/gtkfeatures.h>
  92     #endif
  93     extern const unsigned int gtk_major_version;
  94     extern const unsigned int gtk_minor_version;
  95     extern const unsigned int gtk_micro_version;
  96 #endif
  97
  98 // ----------------------------------------------------------------------------
  99 // static data
 100 // ----------------------------------------------------------------------------
 101
 102 #if defined(__WXPALMOS__)
 103 int wxWindowBase::ms_lastControlId = 32767;
 104 #elif defined(__WXPM__)
 105 int wxWindowBase::ms_lastControlId = 2000;
 106 #else
 107 int wxWindowBase::ms_lastControlId = -200;
 108 #endif
 109
 110 IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
 111
 112 // ----------------------------------------------------------------------------
 113 // event table
 114 // ----------------------------------------------------------------------------
 115
 116 BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
 117     EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
 118     EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
 119     EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
 120
 121 #if wxUSE_HELP
 122     EVT_HELP(wxID_ANY, wxWindowBase::OnHelp)
 123 #endif // wxUSE_HELP
 124
 125 END_EVENT_TABLE()
 126
 127 // ============================================================================
 128 // implementation of the common functionality of the wxWindow class
 129 // ============================================================================
 130
 131 // ----------------------------------------------------------------------------
 132 // initialization
 133 // ----------------------------------------------------------------------------
 134
 135 // the default initialization
 136 wxWindowBase::wxWindowBase()
 137 {
 138     // no window yet, no parent nor children
 139     m_parent = (wxWindow *)NULL;
 140     m_windowId = wxID_ANY;
 141
 142     // no constraints on the minimal window size
 143     m_minWidth =
 144     m_maxWidth = wxDefaultCoord;
 145     m_minHeight =
 146     m_maxHeight = wxDefaultCoord;
 147
 148     // invalidiated cache value
 149     m_bestSizeCache = wxDefaultSize;
 150
 151     // window are created enabled and visible by default
 152     m_isShown =
 153     m_isEnabled = true;
 154
 155     // the default event handler is just this window
 156     m_eventHandler = this;
 157
 158 #if wxUSE_VALIDATORS
 159     // no validator
 160     m_windowValidator = (wxValidator *) NULL;
 161 #endif // wxUSE_VALIDATORS
 162
 163     // the colours/fonts are default for now, so leave m_font,
 164     // m_backgroundColour and m_foregroundColour uninitialized and set those
 165     m_hasBgCol =
 166     m_hasFgCol =
 167     m_hasFont = false;
 168     m_inheritBgCol =
 169     m_inheritFgCol =
 170     m_inheritFont = false;
 171
 172     // no style bits
 173     m_exStyle =
 174     m_windowStyle = 0;
 175
 176     m_backgroundStyle = wxBG_STYLE_SYSTEM;
 177
 178 #if wxUSE_CONSTRAINTS
 179     // no constraints whatsoever
 180     m_constraints = (wxLayoutConstraints *) NULL;
 181     m_constraintsInvolvedIn = (wxWindowList *) NULL;
 182 #endif // wxUSE_CONSTRAINTS
 183
 184     m_windowSizer = (wxSizer *) NULL;
 185     m_containingSizer = (wxSizer *) NULL;
 186     m_autoLayout = false;
 187
 188 #if wxUSE_DRAG_AND_DROP
 189     m_dropTarget = (wxDropTarget *)NULL;
 190 #endif // wxUSE_DRAG_AND_DROP
 191
 192 #if wxUSE_TOOLTIPS
 193     m_tooltip = (wxToolTip *)NULL;
 194 #endif // wxUSE_TOOLTIPS
 195
 196 #if wxUSE_CARET
 197     m_caret = (wxCaret *)NULL;
 198 #endif // wxUSE_CARET
 199
 200 #if wxUSE_PALETTE
 201     m_hasCustomPalette = false;
 202 #endif // wxUSE_PALETTE
 203
 204 #if wxUSE_ACCESSIBILITY
 205     m_accessible = NULL;
 206 #endif
 207
 208     m_virtualSize = wxDefaultSize;
 209
 210     m_minVirtualWidth =
 211     m_maxVirtualWidth = wxDefaultCoord;
 212     m_minVirtualHeight =
 213     m_maxVirtualHeight = wxDefaultCoord;
 214
 215     m_windowVariant = wxWINDOW_VARIANT_NORMAL;
 216 #if wxUSE_SYSTEM_OPTIONS
 217     if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) )
 218     {
 219        m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ;
 220     }
 221 #endif
 222
 223     // Whether we're using the current theme for this window (wxGTK only for now)
 224     m_themeEnabled = false;
 225
 226     // VZ: this one shouldn't exist...
 227     m_isBeingDeleted = false;
 228
 229     // Reserved for future use
 230     m_windowReserved = NULL;
 231 }
 232
 233 // common part of window creation process
 234 bool wxWindowBase::CreateBase(wxWindowBase *parent,
 235                               wxWindowID id,
 236                               const wxPoint& WXUNUSED(pos),
 237                               const wxSize& WXUNUSED(size),
 238                               long style,
 239                               const wxValidator& wxVALIDATOR_PARAM(validator),
 240                               const wxString& name)
 241 {
 242 #if wxUSE_STATBOX
 243     // wxGTK doesn't allow to create controls with static box as the parent so
 244     // this will result in a crash when the program is ported to wxGTK so warn
 245     // the user about it
 246
 247     // if you get this assert, the correct solution is to create the controls
 248     // as siblings of the static box
 249     wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
 250                   _T("wxStaticBox can't be used as a window parent!") );
 251 #endif // wxUSE_STATBOX
 252
 253     // ids are limited to 16 bits under MSW so if you care about portability,
 254     // it's not a good idea to use ids out of this range (and negative ids are
 255     // reserved for wxWidgets own usage)
 256     wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
 257                   _T("invalid id value") );
 258
 259     // generate a new id if the user doesn't care about it
 260     m_windowId = id == wxID_ANY ? NewControlId() : id;
 261
 262     SetName(name);
 263     SetWindowStyleFlag(style);
 264     SetParent(parent);
 265
 266 #if wxUSE_VALIDATORS
 267     SetValidator(validator);
 268 #endif // wxUSE_VALIDATORS
 269
 270     // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
 271     // have it too - like this it's possible to set it only in the top level
 272     // dialog/frame and all children will inherit it by defult
 273     if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
 274     {
 275         SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
 276     }
 277
 278     return true;
 279 }
 280
 281 // ----------------------------------------------------------------------------
 282 // destruction
 283 // ----------------------------------------------------------------------------
 284
 285 // common clean up
 286 wxWindowBase::~wxWindowBase()
 287 {
 288     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 289
 290     // FIXME if these 2 cases result from programming errors in the user code
 291     //       we should probably assert here instead of silently fixing them
 292
 293     // Just in case the window has been Closed, but we're then deleting
 294     // immediately: don't leave dangling pointers.
 295     wxPendingDelete.DeleteObject(this);
 296
 297     // Just in case we've loaded a top-level window via LoadNativeDialog but
 298     // we weren't a dialog class
 299     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 300
 301     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 302
 303     // reset the dangling pointer our parent window may keep to us
 304     if ( m_parent )
 305     {
 306         if ( m_parent->GetDefaultItem() == this )
 307         {
 308             m_parent->SetDefaultItem(NULL);
 309         }
 310
 311         m_parent->RemoveChild(this);
 312     }
 313
 314 #if wxUSE_CARET
 315     delete m_caret;
 316 #endif // wxUSE_CARET
 317
 318 #if wxUSE_VALIDATORS
 319     delete m_windowValidator;
 320 #endif // wxUSE_VALIDATORS
 321
 322 #if wxUSE_CONSTRAINTS
 323     // Have to delete constraints/sizer FIRST otherwise sizers may try to look
 324     // at deleted windows as they delete themselves.
 325     DeleteRelatedConstraints();
 326
 327     if ( m_constraints )
 328     {
 329         // This removes any dangling pointers to this window in other windows'
 330         // constraintsInvolvedIn lists.
 331         UnsetConstraints(m_constraints);
 332         delete m_constraints;
 333         m_constraints = NULL;
 334     }
 335 #endif // wxUSE_CONSTRAINTS
 336
 337     if ( m_containingSizer )
 338         m_containingSizer->Detach( (wxWindow*)this );
 339
 340     delete m_windowSizer;
 341
 342 #if wxUSE_DRAG_AND_DROP
 343     delete m_dropTarget;
 344 #endif // wxUSE_DRAG_AND_DROP
 345
 346 #if wxUSE_TOOLTIPS
 347     delete m_tooltip;
 348 #endif // wxUSE_TOOLTIPS
 349
 350 #if wxUSE_ACCESSIBILITY
 351     delete m_accessible;
 352 #endif
 353 }
 354
 355 bool wxWindowBase::Destroy()
 356 {
 357     delete this;
 358
 359     return true;
 360 }
 361
 362 bool wxWindowBase::Close(bool force)
 363 {
 364     wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
 365     event.SetEventObject(this);
 366     event.SetCanVeto(!force);
 367
 368     // return false if window wasn't closed because the application vetoed the
 369     // close event
 370     return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
 371 }
 372
 373 bool wxWindowBase::DestroyChildren()
 374 {
 375     wxWindowList::compatibility_iterator node;
 376     for ( ;; )
 377     {
 378         // we iterate until the list becomes empty
 379         node = GetChildren().GetFirst();
 380         if ( !node )
 381             break;
 382
 383         wxWindow *child = node->GetData();
 384
 385         // note that we really want to call delete and not ->Destroy() here
 386         // because we want to delete the child immediately, before we are
 387         // deleted, and delayed deletion would result in problems as our (top
 388         // level) child could outlive its parent
 389         delete child;
 390
 391         wxASSERT_MSG( !GetChildren().Find(child),
 392                       wxT("child didn't remove itself using RemoveChild()") );
 393     }
 394
 395     return true;
 396 }
 397
 398 // ----------------------------------------------------------------------------
 399 // size/position related methods
 400 // ----------------------------------------------------------------------------
 401
 402 // centre the window with respect to its parent in either (or both) directions
 403 void wxWindowBase::Centre(int direction)
 404 {
 405     // the position/size of the parent window or of the entire screen
 406     wxPoint posParent;
 407     int widthParent, heightParent;
 408
 409     wxWindow *parent = NULL;
 410     wxTopLevelWindow *winTop = NULL;
 411
 412     if ( !(direction & wxCENTRE_ON_SCREEN) )
 413     {
 414         // find the parent to centre this window on: it should be the
 415         // immediate parent for the controls but the top level parent for the
 416         // top level windows (like dialogs)
 417         parent = GetParent();
 418         if ( IsTopLevel() )
 419         {
 420             while ( parent && !parent->IsTopLevel() )
 421             {
 422                 parent = parent->GetParent();
 423             }
 424         }
 425
 426         // there is no wxTopLevelWindow under wxMotif yet
 427 #ifndef __WXMOTIF__
 428         // we shouldn't center the dialog on the iconized window: under
 429         // Windows, for example, this places it completely off the screen
 430         if ( parent )
 431         {
 432             winTop = wxDynamicCast(parent, wxTopLevelWindow);
 433             if ( winTop && winTop->IsIconized() )
 434             {
 435                 winTop = NULL;
 436                 parent = NULL;
 437             }
 438         }
 439 #endif // __WXMOTIF__
 440
 441         // did we find the parent?
 442         if ( !parent )
 443         {
 444             // no other choice
 445             direction |= wxCENTRE_ON_SCREEN;
 446         }
 447     }
 448
 449     if ( direction & wxCENTRE_ON_SCREEN )
 450     {
 451         //RN:  If we are using wxDisplay we get
 452         //the dimensions of the monitor the window is on,
 453         //otherwise we get the dimensions of the primary monitor
 454         //FIXME:  wxDisplay::GetFromWindow only implemented on MSW
 455 #if wxUSE_DISPLAY && defined(__WXMSW__)
 456         int nDisplay = wxDisplay::GetFromWindow((wxWindow*)this);
 457         if(nDisplay != wxNOT_FOUND)
 458         {
 459             wxDisplay windowDisplay(nDisplay);
 460             wxRect displayRect = windowDisplay.GetGeometry();
 461             widthParent = displayRect.width;
 462             heightParent = displayRect.height;
 463         }
 464         else
 465 #endif
 466         // centre with respect to the whole screen
 467         wxDisplaySize(&widthParent, &heightParent);
 468     }
 469     else
 470     {
 471         if ( IsTopLevel() )
 472         {
 473             if(winTop)
 474                 winTop->GetRectForTopLevelChildren(&posParent.x, &posParent.y, &widthParent, &heightParent);
 475             else
 476             {
 477                 // centre on the parent
 478                 parent->GetSize(&widthParent, &heightParent);
 479
 480                 // adjust to the parents position
 481                 posParent = parent->GetPosition();
 482             }
 483         }
 484         else
 485         {
 486             // centre inside the parents client rectangle
 487             parent->GetClientSize(&widthParent, &heightParent);
 488         }
 489     }
 490
 491     int width, height;
 492     GetSize(&width, &height);
 493
 494     int xNew = wxDefaultCoord,
 495         yNew = wxDefaultCoord;
 496
 497     if ( direction & wxHORIZONTAL )
 498         xNew = (widthParent - width)/2;
 499
 500     if ( direction & wxVERTICAL )
 501         yNew = (heightParent - height)/2;
 502
 503     xNew += posParent.x;
 504     yNew += posParent.y;
 505
 506     // FIXME:  This needs to get the client display rect of the display
 507     // the window is (via wxDisplay::GetFromWindow).
 508
 509     // Base size of the visible dimensions of the display
 510     // to take into account the taskbar. And the Mac menu bar at top.
 511     wxRect clientrect = wxGetClientDisplayRect();
 512
 513     // NB: in wxMSW, negative position may not necessarily mean "out of screen",
 514     //     but it may mean that the window is placed on other than the main
 515     //     display. Therefore we only make sure centered window is on the main display
 516     //     if the parent is at least partially present here.
 517     if (posParent.x + widthParent >= 0)  // if parent is (partially) on the main display
 518     {
 519         if (xNew < clientrect.GetLeft())
 520             xNew = clientrect.GetLeft();
 521         else if (xNew + width > clientrect.GetRight())
 522             xNew = clientrect.GetRight() - width;
 523     }
 524     if (posParent.y + heightParent >= 0)  // if parent is (partially) on the main display
 525     {
 526         if (yNew + height > clientrect.GetBottom())
 527             yNew = clientrect.GetBottom() - height;
 528
 529         // Make certain that the title bar is initially visible
 530         // always, even if this would push the bottom of the
 531         // dialog off the visible area of the display
 532         if (yNew < clientrect.GetTop())
 533             yNew = clientrect.GetTop();
 534     }
 535
 536     // move the window to this position (keeping the old size but using
 537     // SetSize() and not Move() to allow xNew and/or yNew to be wxDefaultCoord)
 538     SetSize(xNew, yNew, width, height, wxSIZE_ALLOW_MINUS_ONE);
 539 }
 540
 541 // fits the window around the children
 542 void wxWindowBase::Fit()
 543 {
 544     if ( !GetChildren().empty() )
 545     {
 546         SetClientSize(GetBestSize());
 547     }
 548     //else: do nothing if we have no children
 549 }
 550
 551 // fits virtual size (ie. scrolled area etc.) around children
 552 void wxWindowBase::FitInside()
 553 {
 554     if ( GetChildren().GetCount() > 0 )
 555     {
 556         SetVirtualSize( GetBestVirtualSize() );
 557     }
 558 }
 559
 560 // On Mac, scrollbars are explicitly children.
 561 #ifdef __WXMAC__
 562 static bool wxHasRealChildren(const wxWindowBase* win)
 563 {
 564     int realChildCount = 0;
 565
 566     for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
 567           node;
 568           node = node->GetNext() )
 569     {
 570         wxWindow *win = node->GetData();
 571         if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar)))
 572             realChildCount ++;
 573     }
 574     return (realChildCount > 0);
 575 }
 576 #endif
 577
 578 void wxWindowBase::InvalidateBestSize()
 579 {
 580     m_bestSizeCache = wxDefaultSize;
 581
 582     // parent's best size calculation may depend on its children's
 583     // best sizes, so let's invalidate it as well to be safe:
 584     if (m_parent)
 585         m_parent->InvalidateBestSize();
 586 }
 587
 588 // return the size best suited for the current window
 589 wxSize wxWindowBase::DoGetBestSize() const
 590 {
 591     wxSize best;
 592
 593     if ( m_windowSizer )
 594     {
 595         best = GetWindowSizeForVirtualSize(m_windowSizer->GetMinSize());
 596     }
 597 #if wxUSE_CONSTRAINTS
 598     else if ( m_constraints )
 599     {
 600         wxConstCast(this, wxWindowBase)->SatisfyConstraints();
 601
 602         // our minimal acceptable size is such that all our windows fit inside
 603         int maxX = 0,
 604             maxY = 0;
 605
 606         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 607               node;
 608               node = node->GetNext() )
 609         {
 610             wxLayoutConstraints *c = node->GetData()->GetConstraints();
 611             if ( !c )
 612             {
 613                 // it's not normal that we have an unconstrained child, but
 614                 // what can we do about it?
 615                 continue;
 616             }
 617
 618             int x = c->right.GetValue(),
 619                 y = c->bottom.GetValue();
 620
 621             if ( x > maxX )
 622                 maxX = x;
 623
 624             if ( y > maxY )
 625                 maxY = y;
 626
 627             // TODO: we must calculate the overlaps somehow, otherwise we
 628             //       will never return a size bigger than the current one :-(
 629         }
 630
 631         best = wxSize(maxX, maxY);
 632     }
 633 #endif // wxUSE_CONSTRAINTS
 634     else if ( !GetChildren().empty()
 635 #ifdef __WXMAC__
 636               && wxHasRealChildren(this)
 637 #endif
 638               )
 639     {
 640         // our minimal acceptable size is such that all our visible child windows fit inside
 641         int maxX = 0,
 642             maxY = 0;
 643
 644         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 645               node;
 646               node = node->GetNext() )
 647         {
 648             wxWindow *win = node->GetData();
 649             if ( win->IsTopLevel()  || ( ! win->IsShown() )
 650 #if wxUSE_STATUSBAR
 651                     || wxDynamicCast(win, wxStatusBar)
 652 #endif // wxUSE_STATUSBAR
 653                )
 654             {
 655                 // dialogs and frames lie in different top level windows -
 656                 // don't deal with them here; as for the status bars, they
 657                 // don't lie in the client area at all
 658                 continue;
 659             }
 660
 661             int wx, wy, ww, wh;
 662             win->GetPosition(&wx, &wy);
 663
 664             // if the window hadn't been positioned yet, assume that it is in
 665             // the origin
 666             if ( wx == wxDefaultCoord )
 667                 wx = 0;
 668             if ( wy == wxDefaultCoord )
 669                 wy = 0;
 670
 671             win->GetSize(&ww, &wh);
 672             if ( wx + ww > maxX )
 673                 maxX = wx + ww;
 674             if ( wy + wh > maxY )
 675                 maxY = wy + wh;
 676         }
 677
 678         // for compatibility with the old versions and because it really looks
 679         // slightly more pretty like this, add a pad
 680         maxX += 7;
 681         maxY += 14;
 682
 683         best = wxSize(maxX, maxY);
 684     }
 685     else // ! has children
 686     {
 687         // for a generic window there is no natural best size so, if the
 688         // minimal size is not set, use the current size but take care to
 689         // remember it as minimal size for the next time because our best size
 690         // should be constant: otherwise we could get into a situation when the
 691         // window is initially at some size, then expanded to a larger size and
 692         // then, when the containing window is shrunk back (because our initial
 693         // best size had been used for computing the parent min size), we can't
 694         // be shrunk back any more because our best size is now bigger
 695         wxSize size = GetMinSize();
 696         if ( !size.IsFullySpecified() )
 697         {
 698             size.SetDefaults(GetSize());
 699             wxConstCast(this, wxWindowBase)->SetMinSize(size);
 700         }
 701
 702         // return as-is, unadjusted by the client size difference.
 703         return size;
 704     }
 705
 706     // Add any difference between size and client size
 707     wxSize diff = GetSize() - GetClientSize();
 708     best.x += wxMax(0, diff.x);
 709     best.y += wxMax(0, diff.y);
 710
 711     return best;
 712 }
 713
 714
 715 wxSize wxWindowBase::GetBestFittingSize() const
 716 {
 717     // merge the best size with the min size, giving priority to the min size
 718     wxSize min = GetMinSize();
 719     if (min.x == wxDefaultCoord || min.y == wxDefaultCoord)
 720     {
 721         wxSize best = GetBestSize();
 722         if (min.x == wxDefaultCoord) min.x =  best.x;
 723         if (min.y == wxDefaultCoord) min.y =  best.y;
 724     }
 725     return min;
 726 }
 727
 728
 729 void wxWindowBase::SetBestFittingSize(const wxSize& size)
 730 {
 731     // Set the min size to the size passed in.  This will usually either be
 732     // wxDefaultSize or the size passed to this window's ctor/Create function.
 733     SetMinSize(size);
 734
 735     // Merge the size with the best size if needed
 736     wxSize best = GetBestFittingSize();
 737
 738     // If the current size doesn't match then change it
 739     if (GetSize() != best)
 740         SetSize(best);
 741 }
 742
 743
 744 // by default the origin is not shifted
 745 wxPoint wxWindowBase::GetClientAreaOrigin() const
 746 {
 747     return wxPoint(0,0);
 748 }
 749
 750 // set the min/max size of the window
 751 void wxWindowBase::DoSetSizeHints(int minW, int minH,
 752                                   int maxW, int maxH,
 753                                   int WXUNUSED(incW), int WXUNUSED(incH))
 754 {
 755     // setting min width greater than max width leads to infinite loops under
 756     // X11 and generally doesn't make any sense, so don't allow it
 757     wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) &&
 758                     (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH),
 759                  _T("min width/height must be less than max width/height!") );
 760
 761     m_minWidth = minW;
 762     m_maxWidth = maxW;
 763     m_minHeight = minH;
 764     m_maxHeight = maxH;
 765 }
 766
 767 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 768 {
 769     if ( m_windowVariant != variant )
 770     {
 771         m_windowVariant = variant;
 772
 773         DoSetWindowVariant(variant);
 774     }
 775 }
 776
 777 void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
 778 {
 779     // adjust the font height to correspond to our new variant (notice that
 780     // we're only called if something really changed)
 781     wxFont font = GetFont();
 782     int size = font.GetPointSize();
 783     switch ( variant )
 784     {
 785         case wxWINDOW_VARIANT_NORMAL:
 786             break;
 787
 788         case wxWINDOW_VARIANT_SMALL:
 789             size *= 3;
 790             size /= 4;
 791             break;
 792
 793         case wxWINDOW_VARIANT_MINI:
 794             size *= 2;
 795             size /= 3;
 796             break;
 797
 798         case wxWINDOW_VARIANT_LARGE:
 799             size *= 5;
 800             size /= 4;
 801             break;
 802
 803         default:
 804             wxFAIL_MSG(_T("unexpected window variant"));
 805             break;
 806     }
 807
 808     font.SetPointSize(size);
 809     SetFont(font);
 810 }
 811
 812 void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
 813                                         int maxW, int maxH )
 814 {
 815     m_minVirtualWidth = minW;
 816     m_maxVirtualWidth = maxW;
 817     m_minVirtualHeight = minH;
 818     m_maxVirtualHeight = maxH;
 819 }
 820
 821 void wxWindowBase::DoSetVirtualSize( int x, int y )
 822 {
 823     if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
 824         x = m_minVirtualWidth;
 825     if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
 826         x = m_maxVirtualWidth;
 827     if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
 828         y = m_minVirtualHeight;
 829     if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
 830         y = m_maxVirtualHeight;
 831
 832     m_virtualSize = wxSize(x, y);
 833 }
 834
 835 wxSize wxWindowBase::DoGetVirtualSize() const
 836 {
 837     // we should use the entire client area so if it is greater than our
 838     // virtual size, expand it to fit (otherwise if the window is big enough we
 839     // wouldn't be using parts of it)
 840     wxSize size = GetClientSize();
 841     if ( m_virtualSize.x > size.x )
 842         size.x = m_virtualSize.x;
 843
 844     if ( m_virtualSize.y >= size.y )
 845         size.y = m_virtualSize.y;
 846
 847     return size;
 848 }
 849
 850 // ----------------------------------------------------------------------------
 851 // show/hide/enable/disable the window
 852 // ----------------------------------------------------------------------------
 853
 854 bool wxWindowBase::Show(bool show)
 855 {
 856     if ( show != m_isShown )
 857     {
 858         m_isShown = show;
 859
 860         return true;
 861     }
 862     else
 863     {
 864         return false;
 865     }
 866 }
 867
 868 bool wxWindowBase::Enable(bool enable)
 869 {
 870     if ( enable != m_isEnabled )
 871     {
 872         m_isEnabled = enable;
 873
 874         return true;
 875     }
 876     else
 877     {
 878         return false;
 879     }
 880 }
 881 // ----------------------------------------------------------------------------
 882 // RTTI
 883 // ----------------------------------------------------------------------------
 884
 885 bool wxWindowBase::IsTopLevel() const
 886 {
 887     return false;
 888 }
 889
 890 // ----------------------------------------------------------------------------
 891 // reparenting the window
 892 // ----------------------------------------------------------------------------
 893
 894 void wxWindowBase::AddChild(wxWindowBase *child)
 895 {
 896     wxCHECK_RET( child, wxT("can't add a NULL child") );
 897
 898     // this should never happen and it will lead to a crash later if it does
 899     // because RemoveChild() will remove only one node from the children list
 900     // and the other(s) one(s) will be left with dangling pointers in them
 901     wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") );
 902
 903     GetChildren().Append((wxWindow*)child);
 904     child->SetParent(this);
 905 }
 906
 907 void wxWindowBase::RemoveChild(wxWindowBase *child)
 908 {
 909     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 910
 911     GetChildren().DeleteObject((wxWindow *)child);
 912     child->SetParent(NULL);
 913 }
 914
 915 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 916 {
 917     wxWindow *oldParent = GetParent();
 918     if ( newParent == oldParent )
 919     {
 920         // nothing done
 921         return false;
 922     }
 923
 924     // unlink this window from the existing parent.
 925     if ( oldParent )
 926     {
 927         oldParent->RemoveChild(this);
 928     }
 929     else
 930     {
 931         wxTopLevelWindows.DeleteObject((wxWindow *)this);
 932     }
 933
 934     // add it to the new one
 935     if ( newParent )
 936     {
 937         newParent->AddChild(this);
 938     }
 939     else
 940     {
 941         wxTopLevelWindows.Append((wxWindow *)this);
 942     }
 943
 944     return true;
 945 }
 946
 947 // ----------------------------------------------------------------------------
 948 // event handler stuff
 949 // ----------------------------------------------------------------------------
 950
 951 void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
 952 {
 953     wxEvtHandler *handlerOld = GetEventHandler();
 954
 955     handler->SetNextHandler(handlerOld);
 956
 957     if ( handlerOld )
 958         GetEventHandler()->SetPreviousHandler(handler);
 959
 960     SetEventHandler(handler);
 961 }
 962
 963 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 964 {
 965     wxEvtHandler *handlerA = GetEventHandler();
 966     if ( handlerA )
 967     {
 968         wxEvtHandler *handlerB = handlerA->GetNextHandler();
 969         handlerA->SetNextHandler((wxEvtHandler *)NULL);
 970
 971         if ( handlerB )
 972             handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
 973         SetEventHandler(handlerB);
 974
 975         if ( deleteHandler )
 976         {
 977             delete handlerA;
 978             handlerA = (wxEvtHandler *)NULL;
 979         }
 980     }
 981
 982     return handlerA;
 983 }
 984
 985 bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
 986 {
 987     wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
 988
 989     wxEvtHandler *handlerPrev = NULL,
 990                  *handlerCur = GetEventHandler();
 991     while ( handlerCur )
 992     {
 993         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 994
 995         if ( handlerCur == handler )
 996         {
 997             if ( handlerPrev )
 998             {
 999                 handlerPrev->SetNextHandler(handlerNext);
1000             }
1001             else
1002             {
1003                 SetEventHandler(handlerNext);
1004             }
1005
1006             if ( handlerNext )
1007             {
1008                 handlerNext->SetPreviousHandler ( handlerPrev );
1009             }
1010
1011             handler->SetNextHandler(NULL);
1012             handler->SetPreviousHandler(NULL);
1013
1014             return true;
1015         }
1016
1017         handlerPrev = handlerCur;
1018         handlerCur = handlerNext;
1019     }
1020
1021     wxFAIL_MSG( _T("where has the event handler gone?") );
1022
1023     return false;
1024 }
1025
1026 // ----------------------------------------------------------------------------
1027 // colours, fonts &c
1028 // ----------------------------------------------------------------------------
1029
1030 void wxWindowBase::InheritAttributes()
1031 {
1032     const wxWindowBase * const parent = GetParent();
1033     if ( !parent )
1034         return;
1035
1036     // we only inherit attributes which had been explicitly set for the parent
1037     // which ensures that this only happens if the user really wants it and
1038     // not by default which wouldn't make any sense in modern GUIs where the
1039     // controls don't all use the same fonts (nor colours)
1040     if ( parent->m_inheritFont && !m_hasFont )
1041         SetFont(parent->GetFont());
1042
1043     // in addition, there is a possibility to explicitly forbid inheriting
1044     // colours at each class level by overriding ShouldInheritColours()
1045     if ( ShouldInheritColours() )
1046     {
1047         if ( parent->m_inheritFgCol && !m_hasFgCol )
1048             SetForegroundColour(parent->GetForegroundColour());
1049
1050         // inheriting (solid) background colour is wrong as it totally breaks
1051         // any kind of themed backgrounds
1052         //
1053         // instead, the controls should use the same background as their parent
1054         // (ideally by not drawing it at all)
1055 #if 0
1056         if ( parent->m_inheritBgCol && !m_hasBgCol )
1057             SetBackgroundColour(parent->GetBackgroundColour());
1058 #endif // 0
1059     }
1060 }
1061
1062 /* static */ wxVisualAttributes
1063 wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1064 {
1065     // it is important to return valid values for all attributes from here,
1066     // GetXXX() below rely on this
1067     wxVisualAttributes attrs;
1068     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
1069     attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
1070
1071     // On Smartphone/PocketPC, wxSYS_COLOUR_WINDOW is a better reflection of
1072     // the usual background colour than wxSYS_COLOUR_BTNFACE.
1073     // It's a pity that wxSYS_COLOUR_WINDOW isn't always a suitable background
1074     // colour on other platforms.
1075
1076 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__POCKETPC__))
1077     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
1078 #else
1079     attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
1080 #endif
1081     return attrs;
1082 }
1083
1084 wxColour wxWindowBase::GetBackgroundColour() const
1085 {
1086     if ( !m_backgroundColour.Ok() )
1087     {
1088         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
1089
1090         // get our default background colour
1091         wxColour colBg = GetDefaultAttributes().colBg;
1092
1093         // we must return some valid colour to avoid redoing this every time
1094         // and also to avoid surprizing the applications written for older
1095         // wxWidgets versions where GetBackgroundColour() always returned
1096         // something -- so give them something even if it doesn't make sense
1097         // for this window (e.g. it has a themed background)
1098         if ( !colBg.Ok() )
1099             colBg = GetClassDefaultAttributes().colBg;
1100
1101         return colBg;
1102     }
1103     else
1104         return m_backgroundColour;
1105 }
1106
1107 wxColour wxWindowBase::GetForegroundColour() const
1108 {
1109     // logic is the same as above
1110     if ( !m_hasFgCol && !m_foregroundColour.Ok() )
1111     {
1112         wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") );
1113
1114         wxColour colFg = GetDefaultAttributes().colFg;
1115
1116         if ( !colFg.Ok() )
1117             colFg = GetClassDefaultAttributes().colFg;
1118
1119         return colFg;
1120     }
1121     else
1122         return m_foregroundColour;
1123 }
1124
1125 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
1126 {
1127     if ( colour == m_backgroundColour )
1128         return false;
1129
1130     m_hasBgCol = colour.Ok();
1131     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
1132         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
1133
1134     m_inheritBgCol = m_hasBgCol;
1135     m_backgroundColour = colour;
1136     SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
1137     return true;
1138 }
1139
1140 bool wxWindowBase::SetForegroundColour( const wxColour &colour )
1141 {
1142     if (colour == m_foregroundColour )
1143         return false;
1144
1145     m_hasFgCol = colour.Ok();
1146     m_inheritFgCol = m_hasFgCol;
1147     m_foregroundColour = colour;
1148     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
1149     return true;
1150 }
1151
1152 bool wxWindowBase::SetCursor(const wxCursor& cursor)
1153 {
1154     // setting an invalid cursor is ok, it means that we don't have any special
1155     // cursor
1156     if ( m_cursor == cursor )
1157     {
1158         // no change
1159         return false;
1160     }
1161
1162     m_cursor = cursor;
1163
1164     return true;
1165 }
1166
1167 wxFont wxWindowBase::GetFont() const
1168 {
1169     // logic is the same as in GetBackgroundColour()
1170     if ( !m_font.Ok() )
1171     {
1172         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
1173
1174         wxFont font = GetDefaultAttributes().font;
1175         if ( !font.Ok() )
1176             font = GetClassDefaultAttributes().font;
1177
1178         return font;
1179     }
1180     else
1181         return m_font;
1182 }
1183
1184 bool wxWindowBase::SetFont(const wxFont& font)
1185 {
1186     if ( font == m_font )
1187     {
1188         // no change
1189         return false;
1190     }
1191
1192     m_font = font;
1193     m_hasFont = font.Ok();
1194     m_inheritFont = m_hasFont;
1195
1196     InvalidateBestSize();
1197
1198     return true;
1199 }
1200
1201 #if wxUSE_PALETTE
1202
1203 void wxWindowBase::SetPalette(const wxPalette& pal)
1204 {
1205     m_hasCustomPalette = true;
1206     m_palette = pal;
1207
1208     // VZ: can anyone explain me what do we do here?
1209     wxWindowDC d((wxWindow *) this);
1210     d.SetPalette(pal);
1211 }
1212
1213 wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
1214 {
1215     wxWindow *win = (wxWindow *)this;
1216     while ( win && !win->HasCustomPalette() )
1217     {
1218         win = win->GetParent();
1219     }
1220
1221     return win;
1222 }
1223
1224 #endif // wxUSE_PALETTE
1225
1226 #if wxUSE_CARET
1227 void wxWindowBase::SetCaret(wxCaret *caret)
1228 {
1229     if ( m_caret )
1230     {
1231         delete m_caret;
1232     }
1233
1234     m_caret = caret;
1235
1236     if ( m_caret )
1237     {
1238         wxASSERT_MSG( m_caret->GetWindow() == this,
1239                       wxT("caret should be created associated to this window") );
1240     }
1241 }
1242 #endif // wxUSE_CARET
1243
1244 #if wxUSE_VALIDATORS
1245 // ----------------------------------------------------------------------------
1246 // validators
1247 // ----------------------------------------------------------------------------
1248
1249 void wxWindowBase::SetValidator(const wxValidator& validator)
1250 {
1251     if ( m_windowValidator )
1252         delete m_windowValidator;
1253
1254     m_windowValidator = (wxValidator *)validator.Clone();
1255
1256     if ( m_windowValidator )
1257         m_windowValidator->SetWindow(this);
1258 }
1259 #endif // wxUSE_VALIDATORS
1260
1261 // ----------------------------------------------------------------------------
1262 // update region stuff
1263 // ----------------------------------------------------------------------------
1264
1265 wxRect wxWindowBase::GetUpdateClientRect() const
1266 {
1267     wxRegion rgnUpdate = GetUpdateRegion();
1268     rgnUpdate.Intersect(GetClientRect());
1269     wxRect rectUpdate = rgnUpdate.GetBox();
1270     wxPoint ptOrigin = GetClientAreaOrigin();
1271     rectUpdate.x -= ptOrigin.x;
1272     rectUpdate.y -= ptOrigin.y;
1273
1274     return rectUpdate;
1275 }
1276
1277 bool wxWindowBase::IsExposed(int x, int y) const
1278 {
1279     return m_updateRegion.Contains(x, y) != wxOutRegion;
1280 }
1281
1282 bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
1283 {
1284     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
1285 }
1286
1287 void wxWindowBase::ClearBackground()
1288 {
1289     // wxGTK uses its own version, no need to add never used code
1290 #ifndef __WXGTK__
1291     wxClientDC dc((wxWindow *)this);
1292     wxBrush brush(GetBackgroundColour(), wxSOLID);
1293     dc.SetBackground(brush);
1294     dc.Clear();
1295 #endif // __WXGTK__
1296 }
1297
1298 // ----------------------------------------------------------------------------
1299 // find child window by id or name
1300 // ----------------------------------------------------------------------------
1301
1302 wxWindow *wxWindowBase::FindWindow(long id) const
1303 {
1304     if ( id == m_windowId )
1305         return (wxWindow *)this;
1306
1307     wxWindowBase *res = (wxWindow *)NULL;
1308     wxWindowList::compatibility_iterator node;
1309     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1310     {
1311         wxWindowBase *child = node->GetData();
1312         res = child->FindWindow( id );
1313     }
1314
1315     return (wxWindow *)res;
1316 }
1317
1318 wxWindow *wxWindowBase::FindWindow(const wxString& name) const
1319 {
1320     if ( name == m_windowName )
1321         return (wxWindow *)this;
1322
1323     wxWindowBase *res = (wxWindow *)NULL;
1324     wxWindowList::compatibility_iterator node;
1325     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
1326     {
1327         wxWindow *child = node->GetData();
1328         res = child->FindWindow(name);
1329     }
1330
1331     return (wxWindow *)res;
1332 }
1333
1334
1335 // find any window by id or name or label: If parent is non-NULL, look through
1336 // children for a label or title matching the specified string. If NULL, look
1337 // through all top-level windows.
1338 //
1339 // to avoid duplicating code we reuse the same helper function but with
1340 // different comparators
1341
1342 typedef bool (*wxFindWindowCmp)(const wxWindow *win,
1343                                 const wxString& label, long id);
1344
1345 static
1346 bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
1347                            long WXUNUSED(id))
1348 {
1349     return win->GetLabel() == label;
1350 }
1351
1352 static
1353 bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
1354                           long WXUNUSED(id))
1355 {
1356     return win->GetName() == label;
1357 }
1358
1359 static
1360 bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
1361                         long id)
1362 {
1363     return win->GetId() == id;
1364 }
1365
1366 // recursive helper for the FindWindowByXXX() functions
1367 static
1368 wxWindow *wxFindWindowRecursively(const wxWindow *parent,
1369                                   const wxString& label,
1370                                   long id,
1371                                   wxFindWindowCmp cmp)
1372 {
1373     if ( parent )
1374     {
1375         // see if this is the one we're looking for
1376         if ( (*cmp)(parent, label, id) )
1377             return (wxWindow *)parent;
1378
1379         // It wasn't, so check all its children
1380         for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst();
1381               node;
1382               node = node->GetNext() )
1383         {
1384             // recursively check each child
1385             wxWindow *win = (wxWindow *)node->GetData();
1386             wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1387             if (retwin)
1388                 return retwin;
1389         }
1390     }
1391
1392     // Not found
1393     return NULL;
1394 }
1395
1396 // helper for FindWindowByXXX()
1397 static
1398 wxWindow *wxFindWindowHelper(const wxWindow *parent,
1399                              const wxString& label,
1400                              long id,
1401                              wxFindWindowCmp cmp)
1402 {
1403     if ( parent )
1404     {
1405         // just check parent and all its children
1406         return wxFindWindowRecursively(parent, label, id, cmp);
1407     }
1408
1409     // start at very top of wx's windows
1410     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1411           node;
1412           node = node->GetNext() )
1413     {
1414         // recursively check each window & its children
1415         wxWindow *win = node->GetData();
1416         wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
1417         if (retwin)
1418             return retwin;
1419     }
1420
1421     return NULL;
1422 }
1423
1424 /* static */
1425 wxWindow *
1426 wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
1427 {
1428     return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
1429 }
1430
1431 /* static */
1432 wxWindow *
1433 wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
1434 {
1435     wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
1436
1437     if ( !win )
1438     {
1439         // fall back to the label
1440         win = FindWindowByLabel(title, parent);
1441     }
1442
1443     return win;
1444 }
1445
1446 /* static */
1447 wxWindow *
1448 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
1449 {
1450     return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
1451 }
1452
1453 // ----------------------------------------------------------------------------
1454 // dialog oriented functions
1455 // ----------------------------------------------------------------------------
1456
1457 void wxWindowBase::MakeModal(bool modal)
1458 {
1459     // Disable all other windows
1460     if ( IsTopLevel() )
1461     {
1462         wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
1463         while (node)
1464         {
1465             wxWindow *win = node->GetData();
1466             if (win != this)
1467                 win->Enable(!modal);
1468
1469             node = node->GetNext();
1470         }
1471     }
1472 }
1473
1474 bool wxWindowBase::Validate()
1475 {
1476 #if wxUSE_VALIDATORS
1477     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1478
1479     wxWindowList::compatibility_iterator node;
1480     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1481     {
1482         wxWindowBase *child = node->GetData();
1483         wxValidator *validator = child->GetValidator();
1484         if ( validator && !validator->Validate((wxWindow *)this) )
1485         {
1486             return false;
1487         }
1488
1489         if ( recurse && !child->Validate() )
1490         {
1491             return false;
1492         }
1493     }
1494 #endif // wxUSE_VALIDATORS
1495
1496     return true;
1497 }
1498
1499 bool wxWindowBase::TransferDataToWindow()
1500 {
1501 #if wxUSE_VALIDATORS
1502     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1503
1504     wxWindowList::compatibility_iterator node;
1505     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1506     {
1507         wxWindowBase *child = node->GetData();
1508         wxValidator *validator = child->GetValidator();
1509         if ( validator && !validator->TransferToWindow() )
1510         {
1511             wxLogWarning(_("Could not transfer data to window"));
1512 #if wxUSE_LOG
1513             wxLog::FlushActive();
1514 #endif // wxUSE_LOG
1515
1516             return false;
1517         }
1518
1519         if ( recurse )
1520         {
1521             if ( !child->TransferDataToWindow() )
1522             {
1523                 // warning already given
1524                 return false;
1525             }
1526         }
1527     }
1528 #endif // wxUSE_VALIDATORS
1529
1530     return true;
1531 }
1532
1533 bool wxWindowBase::TransferDataFromWindow()
1534 {
1535 #if wxUSE_VALIDATORS
1536     bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
1537
1538     wxWindowList::compatibility_iterator node;
1539     for ( node = m_children.GetFirst(); node; node = node->GetNext() )
1540     {
1541         wxWindow *child = node->GetData();
1542         wxValidator *validator = child->GetValidator();
1543         if ( validator && !validator->TransferFromWindow() )
1544         {
1545             // nop warning here because the application is supposed to give
1546             // one itself - we don't know here what might have gone wrongly
1547
1548             return false;
1549         }
1550
1551         if ( recurse )
1552         {
1553             if ( !child->TransferDataFromWindow() )
1554             {
1555                 // warning already given
1556                 return false;
1557             }
1558         }
1559     }
1560 #endif // wxUSE_VALIDATORS
1561
1562     return true;
1563 }
1564
1565 void wxWindowBase::InitDialog()
1566 {
1567     wxInitDialogEvent event(GetId());
1568     event.SetEventObject( this );
1569     GetEventHandler()->ProcessEvent(event);
1570 }
1571
1572 // ----------------------------------------------------------------------------
1573 // context-sensitive help support
1574 // ----------------------------------------------------------------------------
1575
1576 #if wxUSE_HELP
1577
1578 // associate this help text with this window
1579 void wxWindowBase::SetHelpText(const wxString& text)
1580 {
1581     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1582     if ( helpProvider )
1583     {
1584         helpProvider->AddHelp(this, text);
1585     }
1586 }
1587
1588 // associate this help text with all windows with the same id as this
1589 // one
1590 void wxWindowBase::SetHelpTextForId(const wxString& text)
1591 {
1592     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1593     if ( helpProvider )
1594     {
1595         helpProvider->AddHelp(GetId(), text);
1596     }
1597 }
1598
1599 // get the help string associated with this window (may be empty)
1600 wxString wxWindowBase::GetHelpText() const
1601 {
1602     wxString text;
1603     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1604     if ( helpProvider )
1605     {
1606         text = helpProvider->GetHelp(this);
1607     }
1608
1609     return text;
1610 }
1611
1612 // show help for this window
1613 void wxWindowBase::OnHelp(wxHelpEvent& event)
1614 {
1615     wxHelpProvider *helpProvider = wxHelpProvider::Get();
1616     if ( helpProvider )
1617     {
1618         if ( helpProvider->ShowHelp(this) )
1619         {
1620             // skip the event.Skip() below
1621             return;
1622         }
1623     }
1624
1625     event.Skip();
1626 }
1627
1628 #endif // wxUSE_HELP
1629
1630 // ----------------------------------------------------------------------------
1631 // tooltipsroot.Replace("\\", "/");
1632 // ----------------------------------------------------------------------------
1633
1634 #if wxUSE_TOOLTIPS
1635
1636 void wxWindowBase::SetToolTip( const wxString &tip )
1637 {
1638     // don't create the new tooltip if we already have one
1639     if ( m_tooltip )
1640     {
1641         m_tooltip->SetTip( tip );
1642     }
1643     else
1644     {
1645         SetToolTip( new wxToolTip( tip ) );
1646     }
1647
1648     // setting empty tooltip text does not remove the tooltip any more - use
1649     // SetToolTip((wxToolTip *)NULL) for this
1650 }
1651
1652 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
1653 {
1654     if ( m_tooltip )
1655         delete m_tooltip;
1656
1657     m_tooltip = tooltip;
1658 }
1659
1660 #endif // wxUSE_TOOLTIPS
1661
1662 // ----------------------------------------------------------------------------
1663 // constraints and sizers
1664 // ----------------------------------------------------------------------------
1665
1666 #if wxUSE_CONSTRAINTS
1667
1668 void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
1669 {
1670     if ( m_constraints )
1671     {
1672         UnsetConstraints(m_constraints);
1673         delete m_constraints;
1674     }
1675     m_constraints = constraints;
1676     if ( m_constraints )
1677     {
1678         // Make sure other windows know they're part of a 'meaningful relationship'
1679         if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
1680             m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
1681         if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
1682             m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
1683         if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
1684             m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
1685         if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
1686             m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
1687         if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
1688             m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
1689         if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
1690             m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
1691         if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
1692             m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
1693         if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
1694             m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
1695     }
1696 }
1697
1698 // This removes any dangling pointers to this window in other windows'
1699 // constraintsInvolvedIn lists.
1700 void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
1701 {
1702     if ( c )
1703     {
1704         if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1705             c->left.GetOtherWindow()->RemoveConstraintReference(this);
1706         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
1707             c->top.GetOtherWindow()->RemoveConstraintReference(this);
1708         if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
1709             c->right.GetOtherWindow()->RemoveConstraintReference(this);
1710         if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
1711             c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
1712         if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
1713             c->width.GetOtherWindow()->RemoveConstraintReference(this);
1714         if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
1715             c->height.GetOtherWindow()->RemoveConstraintReference(this);
1716         if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
1717             c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
1718         if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
1719             c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
1720     }
1721 }
1722
1723 // Back-pointer to other windows we're involved with, so if we delete this
1724 // window, we must delete any constraints we're involved with.
1725 void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
1726 {
1727     if ( !m_constraintsInvolvedIn )
1728         m_constraintsInvolvedIn = new wxWindowList;
1729     if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) )
1730         m_constraintsInvolvedIn->Append((wxWindow *)otherWin);
1731 }
1732
1733 // REMOVE back-pointer to other windows we're involved with.
1734 void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
1735 {
1736     if ( m_constraintsInvolvedIn )
1737         m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin);
1738 }
1739
1740 // Reset any constraints that mention this window
1741 void wxWindowBase::DeleteRelatedConstraints()
1742 {
1743     if ( m_constraintsInvolvedIn )
1744     {
1745         wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst();
1746         while (node)
1747         {
1748             wxWindow *win = node->GetData();
1749             wxLayoutConstraints *constr = win->GetConstraints();
1750
1751             // Reset any constraints involving this window
1752             if ( constr )
1753             {
1754                 constr->left.ResetIfWin(this);
1755                 constr->top.ResetIfWin(this);
1756                 constr->right.ResetIfWin(this);
1757                 constr->bottom.ResetIfWin(this);
1758                 constr->width.ResetIfWin(this);
1759                 constr->height.ResetIfWin(this);
1760                 constr->centreX.ResetIfWin(this);
1761                 constr->centreY.ResetIfWin(this);
1762             }
1763
1764             wxWindowList::compatibility_iterator next = node->GetNext();
1765             m_constraintsInvolvedIn->Erase(node);
1766             node = next;
1767         }
1768
1769         delete m_constraintsInvolvedIn;
1770         m_constraintsInvolvedIn = (wxWindowList *) NULL;
1771     }
1772 }
1773
1774 #endif // wxUSE_CONSTRAINTS
1775
1776 void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
1777 {
1778     if ( sizer == m_windowSizer)
1779         return;
1780
1781     if ( deleteOld )
1782         delete m_windowSizer;
1783
1784     m_windowSizer = sizer;
1785
1786     SetAutoLayout( sizer != NULL );
1787 }
1788
1789 void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
1790 {
1791     SetSizer( sizer, deleteOld );
1792     sizer->SetSizeHints( (wxWindow*) this );
1793 }
1794
1795
1796 void wxWindowBase::SetContainingSizer(wxSizer* sizer)
1797 {
1798     // adding a window to a sizer twice is going to result in fatal and
1799     // hard to debug problems later because when deleting the second
1800     // associated wxSizerItem we're going to dereference a dangling
1801     // pointer; so try to detect this as early as possible
1802     wxASSERT_MSG( !sizer || m_containingSizer != sizer,
1803                   _T("Adding a window to the same sizer twice?") );
1804
1805     m_containingSizer = sizer;
1806 }
1807
1808 #if wxUSE_CONSTRAINTS
1809
1810 void wxWindowBase::SatisfyConstraints()
1811 {
1812     wxLayoutConstraints *constr = GetConstraints();
1813     bool wasOk = constr && constr->AreSatisfied();
1814
1815     ResetConstraints();   // Mark all constraints as unevaluated
1816
1817     int noChanges = 1;
1818
1819     // if we're a top level panel (i.e. our parent is frame/dialog), our
1820     // own constraints will never be satisfied any more unless we do it
1821     // here
1822     if ( wasOk )
1823     {
1824         while ( noChanges > 0 )
1825         {
1826             LayoutPhase1(&noChanges);
1827         }
1828     }
1829
1830     LayoutPhase2(&noChanges);
1831 }
1832
1833 #endif // wxUSE_CONSTRAINTS
1834
1835 bool wxWindowBase::Layout()
1836 {
1837     // If there is a sizer, use it instead of the constraints
1838     if ( GetSizer() )
1839     {
1840         int w, h;
1841         GetVirtualSize(&w, &h);
1842         GetSizer()->SetDimension( 0, 0, w, h );
1843     }
1844 #if wxUSE_CONSTRAINTS
1845     else
1846     {
1847         SatisfyConstraints(); // Find the right constraints values
1848         SetConstraintSizes(); // Recursively set the real window sizes
1849     }
1850 #endif
1851
1852     return true;
1853 }
1854
1855 #if wxUSE_CONSTRAINTS
1856
1857 // first phase of the constraints evaluation: set our own constraints
1858 bool wxWindowBase::LayoutPhase1(int *noChanges)
1859 {
1860     wxLayoutConstraints *constr = GetConstraints();
1861
1862     return !constr || constr->SatisfyConstraints(this, noChanges);
1863 }
1864
1865 // second phase: set the constraints for our children
1866 bool wxWindowBase::LayoutPhase2(int *noChanges)
1867 {
1868     *noChanges = 0;
1869
1870     // Layout children
1871     DoPhase(1);
1872
1873     // Layout grand children
1874     DoPhase(2);
1875
1876     return true;
1877 }
1878
1879 // Do a phase of evaluating child constraints
1880 bool wxWindowBase::DoPhase(int phase)
1881 {
1882     // the list containing the children for which the constraints are already
1883     // set correctly
1884     wxWindowList succeeded;
1885
1886     // the max number of iterations we loop before concluding that we can't set
1887     // the constraints
1888     static const int maxIterations = 500;
1889
1890     for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
1891     {
1892         int noChanges = 0;
1893
1894         // loop over all children setting their constraints
1895         for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1896               node;
1897               node = node->GetNext() )
1898         {
1899             wxWindow *child = node->GetData();
1900             if ( child->IsTopLevel() )
1901             {
1902                 // top level children are not inside our client area
1903                 continue;
1904             }
1905
1906             if ( !child->GetConstraints() || succeeded.Find(child) )
1907             {
1908                 // this one is either already ok or nothing we can do about it
1909                 continue;
1910             }
1911
1912             int tempNoChanges = 0;
1913             bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
1914                                       : child->LayoutPhase2(&tempNoChanges);
1915             noChanges += tempNoChanges;
1916
1917             if ( success )
1918             {
1919                 succeeded.Append(child);
1920             }
1921         }
1922
1923         if ( !noChanges )
1924         {
1925             // constraints are set
1926             break;
1927         }
1928     }
1929
1930     return true;
1931 }
1932
1933 void wxWindowBase::ResetConstraints()
1934 {
1935     wxLayoutConstraints *constr = GetConstraints();
1936     if ( constr )
1937     {
1938         constr->left.SetDone(false);
1939         constr->top.SetDone(false);
1940         constr->right.SetDone(false);
1941         constr->bottom.SetDone(false);
1942         constr->width.SetDone(false);
1943         constr->height.SetDone(false);
1944         constr->centreX.SetDone(false);
1945         constr->centreY.SetDone(false);
1946     }
1947
1948     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1949     while (node)
1950     {
1951         wxWindow *win = node->GetData();
1952         if ( !win->IsTopLevel() )
1953             win->ResetConstraints();
1954         node = node->GetNext();
1955     }
1956 }
1957
1958 // Need to distinguish between setting the 'fake' size for windows and sizers,
1959 // and setting the real values.
1960 void wxWindowBase::SetConstraintSizes(bool recurse)
1961 {
1962     wxLayoutConstraints *constr = GetConstraints();
1963     if ( constr && constr->AreSatisfied() )
1964     {
1965         int x = constr->left.GetValue();
1966         int y = constr->top.GetValue();
1967         int w = constr->width.GetValue();
1968         int h = constr->height.GetValue();
1969
1970         if ( (constr->width.GetRelationship() != wxAsIs ) ||
1971              (constr->height.GetRelationship() != wxAsIs) )
1972         {
1973             SetSize(x, y, w, h);
1974         }
1975         else
1976         {
1977             // If we don't want to resize this window, just move it...
1978             Move(x, y);
1979         }
1980     }
1981     else if ( constr )
1982     {
1983         wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
1984                    GetClassInfo()->GetClassName(),
1985                    GetName().c_str());
1986     }
1987
1988     if ( recurse )
1989     {
1990         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1991         while (node)
1992         {
1993             wxWindow *win = node->GetData();
1994             if ( !win->IsTopLevel() && win->GetConstraints() )
1995                 win->SetConstraintSizes();
1996             node = node->GetNext();
1997         }
1998     }
1999 }
2000
2001 // Only set the size/position of the constraint (if any)
2002 void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
2003 {
2004     wxLayoutConstraints *constr = GetConstraints();
2005     if ( constr )
2006     {
2007         if ( x != wxDefaultCoord )
2008         {
2009             constr->left.SetValue(x);
2010             constr->left.SetDone(true);
2011         }
2012         if ( y != wxDefaultCoord )
2013         {
2014             constr->top.SetValue(y);
2015             constr->top.SetDone(true);
2016         }
2017         if ( w != wxDefaultCoord )
2018         {
2019             constr->width.SetValue(w);
2020             constr->width.SetDone(true);
2021         }
2022         if ( h != wxDefaultCoord )
2023         {
2024             constr->height.SetValue(h);
2025             constr->height.SetDone(true);
2026         }
2027     }
2028 }
2029
2030 void wxWindowBase::MoveConstraint(int x, int y)
2031 {
2032     wxLayoutConstraints *constr = GetConstraints();
2033     if ( constr )
2034     {
2035         if ( x != wxDefaultCoord )
2036         {
2037             constr->left.SetValue(x);
2038             constr->left.SetDone(true);
2039         }
2040         if ( y != wxDefaultCoord )
2041         {
2042             constr->top.SetValue(y);
2043             constr->top.SetDone(true);
2044         }
2045     }
2046 }
2047
2048 void wxWindowBase::GetSizeConstraint(int *w, int *h) const
2049 {
2050     wxLayoutConstraints *constr = GetConstraints();
2051     if ( constr )
2052     {
2053         *w = constr->width.GetValue();
2054         *h = constr->height.GetValue();
2055     }
2056     else
2057         GetSize(w, h);
2058 }
2059
2060 void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
2061 {
2062     wxLayoutConstraints *constr = GetConstraints();
2063     if ( constr )
2064     {
2065         *w = constr->width.GetValue();
2066         *h = constr->height.GetValue();
2067     }
2068     else
2069         GetClientSize(w, h);
2070 }
2071
2072 void wxWindowBase::GetPositionConstraint(int *x, int *y) const
2073 {
2074     wxLayoutConstraints *constr = GetConstraints();
2075     if ( constr )
2076     {
2077         *x = constr->left.GetValue();
2078         *y = constr->top.GetValue();
2079     }
2080     else
2081         GetPosition(x, y);
2082 }
2083
2084 #endif // wxUSE_CONSTRAINTS
2085
2086 void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
2087 {
2088     // don't do it for the dialogs/frames - they float independently of their
2089     // parent
2090     if ( !IsTopLevel() )
2091     {
2092         wxWindow *parent = GetParent();
2093         if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
2094         {
2095             wxPoint pt(parent->GetClientAreaOrigin());
2096             x += pt.x;
2097             y += pt.y;
2098         }
2099     }
2100 }
2101
2102 // ----------------------------------------------------------------------------
2103 // do Update UI processing for child controls
2104 // ----------------------------------------------------------------------------
2105
2106 void wxWindowBase::UpdateWindowUI(long flags)
2107 {
2108     wxUpdateUIEvent event(GetId());
2109     event.SetEventObject(this);
2110
2111     if ( GetEventHandler()->ProcessEvent(event) )
2112     {
2113         DoUpdateWindowUI(event);
2114     }
2115
2116     if (flags & wxUPDATE_UI_RECURSE)
2117     {
2118         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2119         while (node)
2120         {
2121             wxWindow* child = (wxWindow*) node->GetData();
2122             child->UpdateWindowUI(flags);
2123             node = node->GetNext();
2124         }
2125     }
2126 }
2127
2128 // do the window-specific processing after processing the update event
2129 // TODO: take specific knowledge out of this function and
2130 // put in each control's base class. Unfortunately we don't
2131 // yet have base implementation files for wxCheckBox and wxRadioButton.
2132 void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
2133 {
2134     if ( event.GetSetEnabled() )
2135         Enable(event.GetEnabled());
2136
2137 #if wxUSE_CONTROLS
2138     if ( event.GetSetText() )
2139     {
2140         wxControl *control = wxDynamicCastThis(wxControl);
2141         if ( control )
2142         {
2143             if ( event.GetText() != control->GetLabel() )
2144                 control->SetLabel(event.GetText());
2145         }
2146     }
2147 #endif // wxUSE_CONTROLS
2148
2149     if ( event.GetSetChecked() )
2150     {
2151 #if wxUSE_CHECKBOX
2152         wxCheckBox *checkbox = wxDynamicCastThis(wxCheckBox);
2153         if ( checkbox )
2154         {
2155             checkbox->SetValue(event.GetChecked());
2156         }
2157 #endif // wxUSE_CHECKBOX
2158
2159 #if wxUSE_RADIOBTN
2160         wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);
2161         if ( radiobtn )
2162         {
2163             radiobtn->SetValue(event.GetChecked());
2164         }
2165 #endif // wxUSE_RADIOBTN
2166     }
2167 }
2168
2169 #if 0
2170 // call internal idle recursively
2171 // may be obsolete (wait until OnIdle scheme stabilises)
2172 void wxWindowBase::ProcessInternalIdle()
2173 {
2174     OnInternalIdle();
2175
2176     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2177     while (node)
2178     {
2179         wxWindow *child = node->GetData();
2180         child->ProcessInternalIdle();
2181         node = node->GetNext();
2182     }
2183 }
2184 #endif
2185
2186 // ----------------------------------------------------------------------------
2187 // dialog units translations
2188 // ----------------------------------------------------------------------------
2189
2190 wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
2191 {
2192     int charWidth = GetCharWidth();
2193     int charHeight = GetCharHeight();
2194     wxPoint pt2 = wxDefaultPosition;
2195     if (pt.x != wxDefaultCoord)
2196         pt2.x = (int) ((pt.x * 4) / charWidth);
2197     if (pt.y != wxDefaultCoord)
2198         pt2.y = (int) ((pt.y * 8) / charHeight);
2199
2200     return pt2;
2201 }
2202
2203 wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
2204 {
2205     int charWidth = GetCharWidth();
2206     int charHeight = GetCharHeight();
2207     wxPoint pt2 = wxDefaultPosition;
2208     if (pt.x != wxDefaultCoord)
2209         pt2.x = (int) ((pt.x * charWidth) / 4);
2210     if (pt.y != wxDefaultCoord)
2211         pt2.y = (int) ((pt.y * charHeight) / 8);
2212
2213     return pt2;
2214 }
2215
2216 // ----------------------------------------------------------------------------
2217 // event handlers
2218 // ----------------------------------------------------------------------------
2219
2220 // propagate the colour change event to the subwindows
2221 void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
2222 {
2223     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
2224     while ( node )
2225     {
2226         // Only propagate to non-top-level windows
2227         wxWindow *win = node->GetData();
2228         if ( !win->IsTopLevel() )
2229         {
2230             wxSysColourChangedEvent event2;
2231             event.SetEventObject(win);
2232             win->GetEventHandler()->ProcessEvent(event2);
2233         }
2234
2235         node = node->GetNext();
2236     }
2237
2238     Refresh();
2239 }
2240
2241 // the default action is to populate dialog with data when it's created,
2242 // and nudge the UI into displaying itself correctly in case
2243 // we've turned the wxUpdateUIEvents frequency down low.
2244 void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
2245 {
2246     TransferDataToWindow();
2247
2248     // Update the UI at this point
2249     UpdateWindowUI(wxUPDATE_UI_RECURSE);
2250 }
2251
2252 // methods for drawing the sizers in a visible way
2253 #ifdef __WXDEBUG__
2254
2255 static void DrawSizers(wxWindowBase *win);
2256
2257 static void DrawBorder(wxWindowBase *win, const wxRect& rect, bool fill = false)
2258 {
2259     wxClientDC dc((wxWindow *)win);
2260     dc.SetPen(*wxRED_PEN);
2261     dc.SetBrush(fill ? wxBrush(*wxRED, wxCROSSDIAG_HATCH): *wxTRANSPARENT_BRUSH);
2262     dc.DrawRectangle(rect.Deflate(1, 1));
2263 }
2264
2265 static void DrawSizer(wxWindowBase *win, wxSizer *sizer)
2266 {
2267     const wxSizerItemList& items = sizer->GetChildren();
2268     for ( wxSizerItemList::const_iterator i = items.begin(),
2269                                         end = items.end();
2270           i != end;
2271           ++i )
2272     {
2273         wxSizerItem *item = *i;
2274         if ( item->IsSizer() )
2275         {
2276             DrawBorder(win, item->GetRect().Deflate(2));
2277             DrawSizer(win, item->GetSizer());
2278         }
2279         else if ( item->IsSpacer() )
2280         {
2281             DrawBorder(win, item->GetRect().Deflate(2), true);
2282         }
2283         else if ( item->IsWindow() )
2284         {
2285             DrawSizers(item->GetWindow());
2286         }
2287     }
2288 }
2289
2290 static void DrawSizers(wxWindowBase *win)
2291 {
2292     wxSizer *sizer = win->GetSizer();
2293     if ( sizer )
2294     {
2295         DrawBorder(win, win->GetClientSize());
2296         DrawSizer(win, sizer);
2297     }
2298     else // no sizer, still recurse into the children
2299     {
2300         const wxWindowList& children = win->GetChildren();
2301         for ( wxWindowList::const_iterator i = children.begin(),
2302                                          end = children.end();
2303               i != end;
2304               ++i )
2305         {
2306             DrawSizers(*i);
2307         }
2308     }
2309 }
2310
2311 #endif // __WXDEBUG__
2312
2313 // process special middle clicks
2314 void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
2315 {
2316     if ( event.ControlDown() && event.AltDown() )
2317     {
2318 #ifdef __WXDEBUG__
2319         // Ctrl-Alt-Shift-mclick makes the sizers visible in debug builds
2320         if ( event.ShiftDown() )
2321         {
2322             DrawSizers(this);
2323             return;
2324         }
2325 #endif // __WXDEBUG__
2326
2327 #if wxUSE_MSGDLG
2328         // don't translate these strings
2329         wxString port;
2330
2331 #ifdef __WXUNIVERSAL__
2332         port = _T("Univ/");
2333 #endif // __WXUNIVERSAL__
2334
2335         switch ( wxGetOsVersion() )
2336         {
2337             case wxMOTIF_X:            port += _T("Motif"); break;
2338             case wxMAC:
2339             case wxMAC_DARWIN:         port += _T("Mac"); break;
2340             case wxBEOS:               port += _T("BeOS"); break;
2341             case wxGTK:
2342             case wxGTK_WIN32:
2343             case wxGTK_OS2:
2344             case wxGTK_BEOS:           port += _T("GTK"); break;
2345             case wxWINDOWS:
2346             case wxPENWINDOWS:
2347             case wxWINDOWS_NT:
2348             case wxWIN32S:
2349             case wxWIN95:
2350             case wxWIN386:             port += _T("MS Windows"); break;
2351             case wxMGL_UNIX:
2352             case wxMGL_X:
2353             case wxMGL_WIN32:
2354             case wxMGL_OS2:            port += _T("MGL"); break;
2355             case wxWINDOWS_OS2:
2356             case wxOS2_PM:             port += _T("OS/2"); break;
2357             case wxPALMOS:             port += _T("Palm OS"); break;
2358             case wxWINDOWS_CE:         port += _T("Windows CE (generic)"); break;
2359             case wxWINDOWS_POCKETPC:   port += _T("Windows CE PocketPC"); break;
2360             case wxWINDOWS_SMARTPHONE: port += _T("Windows CE Smartphone"); break;
2361             default:            port += _T("unknown"); break;
2362         }
2363
2364         wxMessageBox(wxString::Format(
2365                                       _T(
2366                                         "       wxWidgets Library (%s port)\nVersion %d.%d.%d%s%s, compiled at %s %s%s\n   Copyright (c) 1995-2006 wxWidgets team"
2367                                         ),
2368                                       port.c_str(),
2369                                       wxMAJOR_VERSION,
2370                                       wxMINOR_VERSION,
2371                                       wxRELEASE_NUMBER,
2372 #if wxUSE_UNICODE
2373                                       L" (Unicode)",
2374 #else
2375                                       "",
2376 #endif
2377 #ifdef __WXDEBUG__
2378                                       _T(" Debug build"),
2379 #else
2380                                       wxEmptyString,
2381 #endif
2382                                       __TDATE__,
2383                                       __TTIME__,
2384 #ifdef __WXGTK__
2385                                       wxString::Format(_T("\nagainst GTK+ %d.%d.%d. Runtime GTK+ version: %d.%d.%d"), GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION, gtk_major_version, gtk_minor_version, gtk_micro_version).c_str()
2386 #else
2387                                       ""
2388 #endif
2389                                      ),
2390                      _T("wxWidgets information"),
2391                      wxICON_INFORMATION | wxOK,
2392                      (wxWindow *)this);
2393     }
2394     else
2395 #endif // wxUSE_MSGDLG
2396     {
2397         event.Skip();
2398     }
2399 }
2400
2401 // ----------------------------------------------------------------------------
2402 // accessibility
2403 // ----------------------------------------------------------------------------
2404
2405 #if wxUSE_ACCESSIBILITY
2406 void wxWindowBase::SetAccessible(wxAccessible* accessible)
2407 {
2408     if (m_accessible && (accessible != m_accessible))
2409         delete m_accessible;
2410     m_accessible = accessible;
2411     if (m_accessible)
2412         m_accessible->SetWindow((wxWindow*) this);
2413 }
2414
2415 // Returns the accessible object, creating if necessary.
2416 wxAccessible* wxWindowBase::GetOrCreateAccessible()
2417 {
2418     if (!m_accessible)
2419         m_accessible = CreateAccessible();
2420     return m_accessible;
2421 }
2422
2423 // Override to create a specific accessible object.
2424 wxAccessible* wxWindowBase::CreateAccessible()
2425 {
2426     return new wxWindowAccessible((wxWindow*) this);
2427 }
2428
2429 #endif
2430
2431 // ----------------------------------------------------------------------------
2432 // list classes implementation
2433 // ----------------------------------------------------------------------------
2434
2435 #if wxUSE_STL
2436
2437 #include "wx/listimpl.cpp"
2438 WX_DEFINE_LIST(wxWindowList)
2439
2440 #else
2441
2442 void wxWindowListNode::DeleteData()
2443 {
2444     delete (wxWindow *)GetData();
2445 }
2446
2447 #endif
2448
2449 // ----------------------------------------------------------------------------
2450 // borders
2451 // ----------------------------------------------------------------------------
2452
2453 wxBorder wxWindowBase::GetBorder(long flags) const
2454 {
2455     wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
2456     if ( border == wxBORDER_DEFAULT )
2457     {
2458         border = GetDefaultBorder();
2459     }
2460
2461     return border;
2462 }
2463
2464 wxBorder wxWindowBase::GetDefaultBorder() const
2465 {
2466     return wxBORDER_NONE;
2467 }
2468
2469 // ----------------------------------------------------------------------------
2470 // hit testing
2471 // ----------------------------------------------------------------------------
2472
2473 wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
2474 {
2475     // here we just check if the point is inside the window or not
2476
2477     // check the top and left border first
2478     bool outside = x < 0 || y < 0;
2479     if ( !outside )
2480     {
2481         // check the right and bottom borders too
2482         wxSize size = GetSize();
2483         outside = x >= size.x || y >= size.y;
2484     }
2485
2486     return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
2487 }
2488
2489 // ----------------------------------------------------------------------------
2490 // mouse capture
2491 // ----------------------------------------------------------------------------
2492
2493 struct WXDLLEXPORT wxWindowNext
2494 {
2495     wxWindow *win;
2496     wxWindowNext *next;
2497 } *wxWindowBase::ms_winCaptureNext = NULL;
2498
2499 void wxWindowBase::CaptureMouse()
2500 {
2501     wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), this);
2502
2503     wxWindow *winOld = GetCapture();
2504     if ( winOld )
2505     {
2506         ((wxWindowBase*) winOld)->DoReleaseMouse();
2507
2508         // save it on stack
2509         wxWindowNext *item = new wxWindowNext;
2510         item->win = winOld;
2511         item->next = ms_winCaptureNext;
2512         ms_winCaptureNext = item;
2513     }
2514     //else: no mouse capture to save
2515
2516     DoCaptureMouse();
2517 }
2518
2519 void wxWindowBase::ReleaseMouse()
2520 {
2521     wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), this);
2522
2523     wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
2524
2525     DoReleaseMouse();
2526
2527     if ( ms_winCaptureNext )
2528     {
2529         ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
2530
2531         wxWindowNext *item = ms_winCaptureNext;
2532         ms_winCaptureNext = item->next;
2533         delete item;
2534     }
2535     //else: stack is empty, no previous capture
2536
2537     wxLogTrace(_T("mousecapture"),
2538         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
2539         GetCapture());
2540 }
2541
2542 #if wxUSE_HOTKEY
2543
2544 bool
2545 wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
2546                              int WXUNUSED(modifiers),
2547                              int WXUNUSED(keycode))
2548 {
2549     // not implemented
2550     return false;
2551 }
2552
2553 bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
2554 {
2555     // not implemented
2556     return false;
2557 }
2558
2559 #endif // wxUSE_HOTKEY
2560
2561 void wxWindowBase::SendDestroyEvent()
2562 {
2563     wxWindowDestroyEvent event;
2564     event.SetEventObject(this);
2565     event.SetId(GetId());
2566     GetEventHandler()->ProcessEvent(event);
2567 }
2568
2569 // ----------------------------------------------------------------------------
2570 // event processing
2571 // ----------------------------------------------------------------------------
2572
2573 bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
2574 {
2575 #if wxUSE_VALIDATORS
2576     // Can only use the validator of the window which
2577     // is receiving the event
2578     if ( event.GetEventObject() == this )
2579     {
2580         wxValidator *validator = GetValidator();
2581         if ( validator && validator->ProcessEvent(event) )
2582         {
2583             return true;
2584         }
2585     }
2586 #endif // wxUSE_VALIDATORS
2587
2588     return false;
2589 }
2590
2591 bool wxWindowBase::TryParent(wxEvent& event)
2592 {
2593     // carry on up the parent-child hierarchy if the propagation count hasn't
2594     // reached zero yet
2595     if ( event.ShouldPropagate() )
2596     {
2597         // honour the requests to stop propagation at this window: this is
2598         // used by the dialogs, for example, to prevent processing the events
2599         // from the dialog controls in the parent frame which rarely, if ever,
2600         // makes sense
2601         if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
2602         {
2603             wxWindow *parent = GetParent();
2604             if ( parent && !parent->IsBeingDeleted() )
2605             {
2606                 wxPropagateOnce propagateOnce(event);
2607
2608                 return parent->GetEventHandler()->ProcessEvent(event);
2609             }
2610         }
2611     }
2612
2613     return wxEvtHandler::TryParent(event);
2614 }
2615
2616 // ----------------------------------------------------------------------------
2617 // keyboard navigation
2618 // ----------------------------------------------------------------------------
2619
2620 // Navigates in the specified direction.
2621 bool wxWindowBase::Navigate(int flags)
2622 {
2623     wxNavigationKeyEvent eventNav;
2624     eventNav.SetFlags(flags);
2625     eventNav.SetEventObject(this);
2626     if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
2627     {
2628         return true;
2629     }
2630     return false;
2631 }
2632
2633 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move)
2634 {
2635     // check that we're not a top level window
2636     wxCHECK_RET( GetParent(),
2637                     _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") );
2638
2639     // detect the special case when we have nothing to do anyhow and when the
2640     // code below wouldn't work
2641     if ( win == this )
2642         return;
2643
2644     // find the target window in the siblings list
2645     wxWindowList& siblings = GetParent()->GetChildren();
2646     wxWindowList::compatibility_iterator i = siblings.Find(win);
2647     wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") );
2648
2649     // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we
2650     // can't just move the node around
2651     wxWindow *self = (wxWindow *)this;
2652     siblings.DeleteObject(self);
2653     if ( move == MoveAfter )
2654     {
2655         i = i->GetNext();
2656     }
2657
2658     if ( i )
2659     {
2660         siblings.Insert(i, self);
2661     }
2662     else // MoveAfter and win was the last sibling
2663     {
2664         siblings.Append(self);
2665     }
2666 }
2667
2668 // ----------------------------------------------------------------------------
2669 // focus handling
2670 // ----------------------------------------------------------------------------
2671
2672 /*static*/ wxWindow* wxWindowBase::FindFocus()
2673 {
2674     wxWindowBase *win = DoFindFocus();
2675     return win ? win->GetMainWindowOfCompositeControl() : NULL;
2676 }
2677
2678 // ----------------------------------------------------------------------------
2679 // global functions
2680 // ----------------------------------------------------------------------------
2681
2682 wxWindow* wxGetTopLevelParent(wxWindow *win)
2683 {
2684     while ( win && !win->IsTopLevel() )
2685          win = win->GetParent();
2686
2687     return win;
2688 }
2689
2690 #if wxUSE_ACCESSIBILITY
2691 // ----------------------------------------------------------------------------
2692 // accessible object for windows
2693 // ----------------------------------------------------------------------------
2694
2695 // Can return either a child object, or an integer
2696 // representing the child element, starting from 1.
2697 wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject))
2698 {
2699     wxASSERT( GetWindow() != NULL );
2700     if (!GetWindow())
2701         return wxACC_FAIL;
2702
2703     return wxACC_NOT_IMPLEMENTED;
2704 }
2705
2706 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
2707 wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
2708 {
2709     wxASSERT( GetWindow() != NULL );
2710     if (!GetWindow())
2711         return wxACC_FAIL;
2712
2713     wxWindow* win = NULL;
2714     if (elementId == 0)
2715     {
2716         win = GetWindow();
2717     }
2718     else
2719     {
2720         if (elementId <= (int) GetWindow()->GetChildren().GetCount())
2721         {
2722             win = GetWindow()->GetChildren().Item(elementId-1)->GetData();
2723         }
2724         else
2725             return wxACC_FAIL;
2726     }
2727     if (win)
2728     {
2729         rect = win->GetRect();
2730         if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
2731             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
2732         return wxACC_OK;
2733     }
2734
2735     return wxACC_NOT_IMPLEMENTED;
2736 }
2737
2738 // Navigates from fromId to toId/toObject.
2739 wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
2740                              int* WXUNUSED(toId), wxAccessible** toObject)
2741 {
2742     wxASSERT( GetWindow() != NULL );
2743     if (!GetWindow())
2744         return wxACC_FAIL;
2745
2746     switch (navDir)
2747     {
2748     case wxNAVDIR_FIRSTCHILD:
2749         {
2750             if (GetWindow()->GetChildren().GetCount() == 0)
2751                 return wxACC_FALSE;
2752             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
2753             *toObject = childWindow->GetOrCreateAccessible();
2754
2755             return wxACC_OK;
2756         }
2757     case wxNAVDIR_LASTCHILD:
2758         {
2759             if (GetWindow()->GetChildren().GetCount() == 0)
2760                 return wxACC_FALSE;
2761             wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
2762             *toObject = childWindow->GetOrCreateAccessible();
2763
2764             return wxACC_OK;
2765         }
2766     case wxNAVDIR_RIGHT:
2767     case wxNAVDIR_DOWN:
2768     case wxNAVDIR_NEXT:
2769         {
2770             wxWindowList::compatibility_iterator node =
2771                 wxWindowList::compatibility_iterator();
2772             if (fromId == 0)
2773             {
2774                 // Can't navigate to sibling of this window
2775                 // if we're a top-level window.
2776                 if (!GetWindow()->GetParent())
2777                     return wxACC_NOT_IMPLEMENTED;
2778
2779                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2780             }
2781             else
2782             {
2783                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2784                     node = GetWindow()->GetChildren().Item(fromId-1);
2785             }
2786
2787             if (node && node->GetNext())
2788             {
2789                 wxWindow* nextWindow = node->GetNext()->GetData();
2790                 *toObject = nextWindow->GetOrCreateAccessible();
2791                 return wxACC_OK;
2792             }
2793             else
2794                 return wxACC_FALSE;
2795         }
2796     case wxNAVDIR_LEFT:
2797     case wxNAVDIR_UP:
2798     case wxNAVDIR_PREVIOUS:
2799         {
2800             wxWindowList::compatibility_iterator node =
2801                 wxWindowList::compatibility_iterator();
2802             if (fromId == 0)
2803             {
2804                 // Can't navigate to sibling of this window
2805                 // if we're a top-level window.
2806                 if (!GetWindow()->GetParent())
2807                     return wxACC_NOT_IMPLEMENTED;
2808
2809                 node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
2810             }
2811             else
2812             {
2813                 if (fromId <= (int) GetWindow()->GetChildren().GetCount())
2814                     node = GetWindow()->GetChildren().Item(fromId-1);
2815             }
2816
2817             if (node && node->GetPrevious())
2818             {
2819                 wxWindow* previousWindow = node->GetPrevious()->GetData();
2820                 *toObject = previousWindow->GetOrCreateAccessible();
2821                 return wxACC_OK;
2822             }
2823             else
2824                 return wxACC_FALSE;
2825         }
2826     }
2827
2828     return wxACC_NOT_IMPLEMENTED;
2829 }
2830
2831 // Gets the name of the specified object.
2832 wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
2833 {
2834     wxASSERT( GetWindow() != NULL );
2835     if (!GetWindow())
2836         return wxACC_FAIL;
2837
2838     wxString title;
2839
2840     // If a child, leave wxWidgets to call the function on the actual
2841     // child object.
2842     if (childId > 0)
2843         return wxACC_NOT_IMPLEMENTED;
2844
2845     // This will eventually be replaced by specialised
2846     // accessible classes, one for each kind of wxWidgets
2847     // control or window.
2848 #if wxUSE_BUTTON
2849     if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
2850         title = ((wxButton*) GetWindow())->GetLabel();
2851     else
2852 #endif
2853         title = GetWindow()->GetName();
2854
2855     if (!title.empty())
2856     {
2857         *name = title;
2858         return wxACC_OK;
2859     }
2860     else
2861         return wxACC_NOT_IMPLEMENTED;
2862 }
2863
2864 // Gets the number of children.
2865 wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
2866 {
2867     wxASSERT( GetWindow() != NULL );
2868     if (!GetWindow())
2869         return wxACC_FAIL;
2870
2871     *childId = (int) GetWindow()->GetChildren().GetCount();
2872     return wxACC_OK;
2873 }
2874
2875 // Gets the specified child (starting from 1).
2876 // If *child is NULL and return value is wxACC_OK,
2877 // this means that the child is a simple element and
2878 // not an accessible object.
2879 wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
2880 {
2881     wxASSERT( GetWindow() != NULL );
2882     if (!GetWindow())
2883         return wxACC_FAIL;
2884
2885     if (childId == 0)
2886     {
2887         *child = this;
2888         return wxACC_OK;
2889     }
2890
2891     if (childId > (int) GetWindow()->GetChildren().GetCount())
2892         return wxACC_FAIL;
2893
2894     wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData();
2895     *child = childWindow->GetOrCreateAccessible();
2896     if (*child)
2897         return wxACC_OK;
2898     else
2899         return wxACC_FAIL;
2900 }
2901
2902 // Gets the parent, or NULL.
2903 wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
2904 {
2905     wxASSERT( GetWindow() != NULL );
2906     if (!GetWindow())
2907         return wxACC_FAIL;
2908
2909     wxWindow* parentWindow = GetWindow()->GetParent();
2910     if (!parentWindow)
2911     {
2912         *parent = NULL;
2913         return wxACC_OK;
2914     }
2915     else
2916     {
2917         *parent = parentWindow->GetOrCreateAccessible();
2918         if (*parent)
2919             return wxACC_OK;
2920         else
2921             return wxACC_FAIL;
2922     }
2923 }
2924
2925 // Performs the default action. childId is 0 (the action for this object)
2926 // or > 0 (the action for a child).
2927 // Return wxACC_NOT_SUPPORTED if there is no default action for this
2928 // window (e.g. an edit control).
2929 wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId))
2930 {
2931     wxASSERT( GetWindow() != NULL );
2932     if (!GetWindow())
2933         return wxACC_FAIL;
2934
2935     return wxACC_NOT_IMPLEMENTED;
2936 }
2937
2938 // Gets the default action for this object (0) or > 0 (the action for a child).
2939 // Return wxACC_OK even if there is no action. actionName is the action, or the empty
2940 // string if there is no action.
2941 // The retrieved string describes the action that is performed on an object,
2942 // not what the object does as a result. For example, a toolbar button that prints
2943 // a document has a default action of "Press" rather than "Prints the current document."
2944 wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName))
2945 {
2946     wxASSERT( GetWindow() != NULL );
2947     if (!GetWindow())
2948         return wxACC_FAIL;
2949
2950     return wxACC_NOT_IMPLEMENTED;
2951 }
2952
2953 // Returns the description for this object or a child.
2954 wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description)
2955 {
2956     wxASSERT( GetWindow() != NULL );
2957     if (!GetWindow())
2958         return wxACC_FAIL;
2959
2960     wxString ht(GetWindow()->GetHelpText());
2961     if (!ht.empty())
2962     {
2963         *description = ht;
2964         return wxACC_OK;
2965     }
2966     return wxACC_NOT_IMPLEMENTED;
2967 }
2968
2969 // Returns help text for this object or a child, similar to tooltip text.
2970 wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText)
2971 {
2972     wxASSERT( GetWindow() != NULL );
2973     if (!GetWindow())
2974         return wxACC_FAIL;
2975
2976     wxString ht(GetWindow()->GetHelpText());
2977     if (!ht.empty())
2978     {
2979         *helpText = ht;
2980         return wxACC_OK;
2981     }
2982     return wxACC_NOT_IMPLEMENTED;
2983 }
2984
2985 // Returns the keyboard shortcut for this object or child.
2986 // Return e.g. ALT+K
2987 wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut))
2988 {
2989     wxASSERT( GetWindow() != NULL );
2990     if (!GetWindow())
2991         return wxACC_FAIL;
2992
2993     return wxACC_NOT_IMPLEMENTED;
2994 }
2995
2996 // Returns a role constant.
2997 wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
2998 {
2999     wxASSERT( GetWindow() != NULL );
3000     if (!GetWindow())
3001         return wxACC_FAIL;
3002
3003     // If a child, leave wxWidgets to call the function on the actual
3004     // child object.
3005     if (childId > 0)
3006         return wxACC_NOT_IMPLEMENTED;
3007
3008     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
3009         return wxACC_NOT_IMPLEMENTED;
3010 #if wxUSE_STATUSBAR
3011     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
3012         return wxACC_NOT_IMPLEMENTED;
3013 #endif
3014 #if wxUSE_TOOLBAR
3015     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
3016         return wxACC_NOT_IMPLEMENTED;
3017 #endif
3018
3019     //*role = wxROLE_SYSTEM_CLIENT;
3020     *role = wxROLE_SYSTEM_CLIENT;
3021     return wxACC_OK;
3022
3023     #if 0
3024     return wxACC_NOT_IMPLEMENTED;
3025     #endif
3026 }
3027
3028 // Returns a state constant.
3029 wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
3030 {
3031     wxASSERT( GetWindow() != NULL );
3032     if (!GetWindow())
3033         return wxACC_FAIL;
3034
3035     // If a child, leave wxWidgets to call the function on the actual
3036     // child object.
3037     if (childId > 0)
3038         return wxACC_NOT_IMPLEMENTED;
3039
3040     if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
3041         return wxACC_NOT_IMPLEMENTED;
3042
3043 #if wxUSE_STATUSBAR
3044     if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
3045         return wxACC_NOT_IMPLEMENTED;
3046 #endif
3047 #if wxUSE_TOOLBAR
3048     if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
3049         return wxACC_NOT_IMPLEMENTED;
3050 #endif
3051
3052     *state = 0;
3053     return wxACC_OK;
3054
3055     #if 0
3056     return wxACC_NOT_IMPLEMENTED;
3057     #endif
3058 }
3059
3060 // Returns a localized string representing the value for the object
3061 // or child.
3062 wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
3063 {
3064     wxASSERT( GetWindow() != NULL );
3065     if (!GetWindow())
3066         return wxACC_FAIL;
3067
3068     return wxACC_NOT_IMPLEMENTED;
3069 }
3070
3071 // Selects the object or child.
3072 wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags))
3073 {
3074     wxASSERT( GetWindow() != NULL );
3075     if (!GetWindow())
3076         return wxACC_FAIL;
3077
3078     return wxACC_NOT_IMPLEMENTED;
3079 }
3080
3081 // Gets the window with the keyboard focus.
3082 // If childId is 0 and child is NULL, no object in
3083 // this subhierarchy has the focus.
3084 // If this object has the focus, child should be 'this'.
3085 wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child))
3086 {
3087     wxASSERT( GetWindow() != NULL );
3088     if (!GetWindow())
3089         return wxACC_FAIL;
3090
3091     return wxACC_NOT_IMPLEMENTED;
3092 }
3093
3094 // Gets a variant representing the selected children
3095 // of this object.
3096 // Acceptable values:
3097 // - a null variant (IsNull() returns true)
3098 // - a list variant (GetType() == wxT("list")
3099 // - an integer representing the selected child element,
3100 //   or 0 if this object is selected (GetType() == wxT("long")
3101 // - a "void*" pointer to a wxAccessible child object
3102 wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
3103 {
3104     wxASSERT( GetWindow() != NULL );
3105     if (!GetWindow())
3106         return wxACC_FAIL;
3107
3108     return wxACC_NOT_IMPLEMENTED;
3109 }
3110
3111 #endif // wxUSE_ACCESSIBILITY