]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/wincmn.cpp
Compilation fix.
[wxWidgets.git] / src / common / wincmn.cpp
index 4aebe4007efb18c807dc2e64e40f4b7c964cbc94..61402fabf07df6ae8a03f26cfd473fc83ee13881 100644 (file)
 /////////////////////////////////////////////////////////////////////////////
-// Name:        windows.cpp
+// Name:        common/window.cpp
 // Purpose:     common (to all ports) wxWindow functions
 // Author:      Julian Smart, Vadim Zeitlin
 // Modified by:
 // Created:     13/07/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
+// Copyright:   (c) wxWindows team
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#ifdef __GNUG__
+    #pragma implementation "windowbase.h"
+#endif
+
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
-// For compilers that support precompilation, includes "wx.h".
-#include "wx/wxprec.h"
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/string.h"
+    #include "wx/log.h"
+    #include "wx/intl.h"
+    #include "wx/frame.h"
+    #include "wx/defs.h"
+    #include "wx/window.h"
+    #include "wx/control.h"
+    #include "wx/checkbox.h"
+    #include "wx/radiobut.h"
+    #include "wx/statbox.h"
+    #include "wx/textctrl.h"
+    #include "wx/settings.h"
+    #include "wx/dialog.h"
+    #include "wx/msgdlg.h"
+    #include "wx/statusbr.h"
+    #include "wx/dcclient.h"
+#endif //WX_PRECOMP
+
+#if wxUSE_CONSTRAINTS
+    #include "wx/layout.h"
+#endif // wxUSE_CONSTRAINTS
+
+#include "wx/sizer.h"
+
+#if wxUSE_DRAG_AND_DROP
+    #include "wx/dnd.h"
+#endif // wxUSE_DRAG_AND_DROP
+
+#if wxUSE_ACCESSIBILITY
+    #include "wx/access.h"
+#endif
+
+#if wxUSE_HELP
+    #include "wx/cshelp.h"
+#endif // wxUSE_HELP
+
+#if wxUSE_TOOLTIPS
+    #include "wx/tooltip.h"
+#endif // wxUSE_TOOLTIPS
+
+#if wxUSE_CARET
+    #include "wx/caret.h"
+#endif // wxUSE_CARET
+
+// ----------------------------------------------------------------------------
+// static data
+// ----------------------------------------------------------------------------
+
+#if defined(__WXPM__)
+int wxWindowBase::ms_lastControlId = 2000;
+#else
+int wxWindowBase::ms_lastControlId = -200;
+#endif
+
+IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler)
+
+// ----------------------------------------------------------------------------
+// event table
+// ----------------------------------------------------------------------------
+
+BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler)
+    EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged)
+    EVT_INIT_DIALOG(wxWindowBase::OnInitDialog)
+    EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick)
+
+#if wxUSE_HELP
+    EVT_HELP(-1, wxWindowBase::OnHelp)
+#endif // wxUSE_HELP
+
+END_EVENT_TABLE()
+
+// ============================================================================
+// implementation of the common functionality of the wxWindow class
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// initialization
+// ----------------------------------------------------------------------------
+
+// the default initialization
+void wxWindowBase::InitBase()
+{
+    // no window yet, no parent nor children
+    m_parent = (wxWindow *)NULL;
+    m_windowId = -1;
+    m_children.DeleteContents( FALSE ); // don't auto delete node data
+
+    // no constraints on the minimal window size
+    m_minWidth =
+    m_minHeight =
+    m_maxWidth =
+    m_maxHeight = -1;
+
+    // window is created enabled but it's not visible yet
+    m_isShown = FALSE;
+    m_isEnabled = TRUE;
+
+    // the default event handler is just this window
+    m_eventHandler = this;
+
+#if wxUSE_VALIDATORS
+    // no validator
+    m_windowValidator = (wxValidator *) NULL;
+#endif // wxUSE_VALIDATORS
+
+    // use the system default colours
+    m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
+    m_foregroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
+
+    // don't set the font here for wxMSW as we don't call WM_SETFONT here and
+    // so the font is *not* really set - but calls to SetFont() later won't do
+    // anything because m_font appears to be already set!
+#ifndef __WXMSW__
+    m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
+#endif // __WXMSW__
+
+    // the colours/fonts are default for now
+    m_hasBgCol =
+    m_hasFgCol =
+    m_hasFont = FALSE;
+    
+    m_isBeingDeleted = FALSE;
+
+    // no style bits
+    m_exStyle =
+    m_windowStyle = 0;
+
+#if wxUSE_CONSTRAINTS
+    // no constraints whatsoever
+    m_constraints = (wxLayoutConstraints *) NULL;
+    m_constraintsInvolvedIn = (wxWindowList *) NULL;
+#endif // wxUSE_CONSTRAINTS
+
+    m_windowSizer = (wxSizer *) NULL;
+    m_containingSizer = (wxSizer *) NULL;
+    m_autoLayout = FALSE;
+
+#if wxUSE_DRAG_AND_DROP
+    m_dropTarget = (wxDropTarget *)NULL;
+#endif // wxUSE_DRAG_AND_DROP
+
+#if wxUSE_TOOLTIPS
+    m_tooltip = (wxToolTip *)NULL;
+#endif // wxUSE_TOOLTIPS
+
+#if wxUSE_CARET
+    m_caret = (wxCaret *)NULL;
+#endif // wxUSE_CARET
+
+#if wxUSE_PALETTE
+    m_hasCustomPalette = FALSE;
+#endif // wxUSE_PALETTE
+
+#if wxUSE_ACCESSIBILITY
+    m_accessible = NULL;
+#endif
+
+    m_virtualSize = wxDefaultSize;
+
+    m_minVirtualWidth =
+    m_minVirtualHeight =
+    m_maxVirtualWidth =
+    m_maxVirtualHeight = -1;
+
+    // Whether we're using the current theme for this window (wxGTK only for now)
+    m_themeEnabled = FALSE;
+}
+
+// common part of window creation process
+bool wxWindowBase::CreateBase(wxWindowBase *parent,
+                              wxWindowID id,
+                              const wxPoint& WXUNUSED(pos),
+                              const wxSize& WXUNUSED(size),
+                              long style,
+                              const wxValidator& validator,
+                              const wxString& name)
+{
+#if wxUSE_STATBOX
+    // wxGTK doesn't allow to create controls with static box as the parent so
+    // this will result in a crash when the program is ported to wxGTK so warn
+    // the user about it
+
+    // if you get this assert, the correct solution is to create the controls
+    // as siblings of the static box
+    wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox),
+                  _T("wxStaticBox can't be used as a window parent!") );
+#endif // wxUSE_STATBOX
+
+    // ids are limited to 16 bits under MSW so if you care about portability,
+    // it's not a good idea to use ids out of this range (and negative ids are
+    // reserved for wxWindows own usage)
+    wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767),
+                  _T("invalid id value") );
+
+    // generate a new id if the user doesn't care about it
+    m_windowId = id == wxID_ANY ? NewControlId() : id;
+
+    SetName(name);
+    SetWindowStyleFlag(style);
+    SetParent(parent);
+
+#if wxUSE_VALIDATORS
+    SetValidator(validator);
+#endif // wxUSE_VALIDATORS
+
+    // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to
+    // have it too - like this it's possible to set it only in the top level
+    // dialog/frame and all children will inherit it by defult
+    if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) )
+    {
+        SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY);
+    }
+
+    return TRUE;
+}
+
+// ----------------------------------------------------------------------------
+// destruction
+// ----------------------------------------------------------------------------
+
+// common clean up
+wxWindowBase::~wxWindowBase()
+{
+    wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
+
+    // FIXME if these 2 cases result from programming errors in the user code
+    //       we should probably assert here instead of silently fixing them
+
+    // Just in case the window has been Closed, but we're then deleting
+    // immediately: don't leave dangling pointers.
+    wxPendingDelete.DeleteObject(this);
+
+    // Just in case we've loaded a top-level window via LoadNativeDialog but
+    // we weren't a dialog class
+    wxTopLevelWindows.DeleteObject(this);
+
+    wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
+
+#if wxUSE_CARET
+    if ( m_caret )
+        delete m_caret;
+#endif // wxUSE_CARET
+
+#if wxUSE_VALIDATORS
+    if ( m_windowValidator )
+        delete m_windowValidator;
+#endif // wxUSE_VALIDATORS
+
+#if wxUSE_CONSTRAINTS
+    // Have to delete constraints/sizer FIRST otherwise sizers may try to look
+    // at deleted windows as they delete themselves.
+    DeleteRelatedConstraints();
+
+    if ( m_constraints )
+    {
+        // This removes any dangling pointers to this window in other windows'
+        // constraintsInvolvedIn lists.
+        UnsetConstraints(m_constraints);
+        delete m_constraints;
+        m_constraints = NULL;
+    }
+
+#endif // wxUSE_CONSTRAINTS
+
+    if ( m_containingSizer )
+        m_containingSizer->Detach( (wxWindow*)this );
+
+    if ( m_windowSizer )
+        delete m_windowSizer;
+
+#if wxUSE_DRAG_AND_DROP
+    if ( m_dropTarget )
+        delete m_dropTarget;
+#endif // wxUSE_DRAG_AND_DROP
+
+#if wxUSE_TOOLTIPS
+    if ( m_tooltip )
+        delete m_tooltip;
+#endif // wxUSE_TOOLTIPS
+
+#if wxUSE_ACCESSIBILITY
+    if ( m_accessible )
+        delete m_accessible;
+#endif
+
+    // reset the dangling pointer our parent window may keep to us
+    if ( m_parent && m_parent->GetDefaultItem() == this )
+    {
+        m_parent->SetDefaultItem(NULL);
+    }
+}
+
+bool wxWindowBase::Destroy()
+{
+    delete this;
+
+    return TRUE;
+}
+
+bool wxWindowBase::Close(bool force)
+{
+    wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
+    event.SetEventObject(this);
+#if WXWIN_COMPATIBILITY
+    event.SetForce(force);
+#endif // WXWIN_COMPATIBILITY
+    event.SetCanVeto(!force);
+
+    // return FALSE if window wasn't closed because the application vetoed the
+    // close event
+    return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
+}
+
+bool wxWindowBase::DestroyChildren()
+{
+    wxWindowList::Node *node;
+    for ( ;; )
+    {
+        // we iterate until the list becomes empty
+        node = GetChildren().GetFirst();
+        if ( !node )
+            break;
+
+        wxWindow *child = node->GetData();
+
+        wxASSERT_MSG( child, wxT("children list contains empty nodes") );
+
+        child->Show(FALSE);
+        delete child;
+
+        wxASSERT_MSG( !GetChildren().Find(child),
+                      wxT("child didn't remove itself using RemoveChild()") );
+    }
+
+    return TRUE;
+}
+
+// ----------------------------------------------------------------------------
+// size/position related methods
+// ----------------------------------------------------------------------------
+
+// centre the window with respect to its parent in either (or both) directions
+void wxWindowBase::Centre(int direction)
+{
+    // the position/size of the parent window or of the entire screen
+    wxPoint posParent;
+    int widthParent, heightParent;
+
+    wxWindow *parent = NULL;
+
+    if ( !(direction & wxCENTRE_ON_SCREEN) )
+    {
+        // find the parent to centre this window on: it should be the
+        // immediate parent for the controls but the top level parent for the
+        // top level windows (like dialogs)
+        parent = GetParent();
+        if ( IsTopLevel() )
+        {
+            while ( parent && !parent->IsTopLevel() )
+            {
+                parent = parent->GetParent();
+            }
+        }
+
+        // there is no wxTopLevelWindow under wxMotif yet
+#ifndef __WXMOTIF__
+        // we shouldn't center the dialog on the iconized window: under
+        // Windows, for example, this places it completely off the screen
+        if ( parent )
+        {
+            wxTopLevelWindow *winTop = wxDynamicCast(parent, wxTopLevelWindow);
+            if ( winTop && winTop->IsIconized() )
+            {
+                parent = NULL;
+            }
+        }
+#endif // __WXMOTIF__
+
+        // did we find the parent?
+        if ( !parent )
+        {
+            // no other choice
+            direction |= wxCENTRE_ON_SCREEN;
+        }
+    }
+
+    if ( direction & wxCENTRE_ON_SCREEN )
+    {
+        // centre with respect to the whole screen
+        wxDisplaySize(&widthParent, &heightParent);
+    }
+    else
+    {
+        if ( IsTopLevel() )
+        {
+            // centre on the parent
+            parent->GetSize(&widthParent, &heightParent);
+
+            // adjust to the parents position
+            posParent = parent->GetPosition();
+        }
+        else
+        {
+            // centre inside the parents client rectangle
+            parent->GetClientSize(&widthParent, &heightParent);
+        }
+    }
+
+    int width, height;
+    GetSize(&width, &height);
+
+    int xNew = -1,
+        yNew = -1;
+
+    if ( direction & wxHORIZONTAL )
+        xNew = (widthParent - width)/2;
+
+    if ( direction & wxVERTICAL )
+        yNew = (heightParent - height)/2;
+
+    xNew += posParent.x;
+    yNew += posParent.y;
+
+    // Base size of the visible dimensions of the display
+    // to take into account the taskbar
+    wxRect rect = wxGetClientDisplayRect();
+    wxSize size (rect.width,rect.height);
+
+    // NB: in wxMSW, negative position may not neccessary mean "out of screen",
+    //     but it may mean that the window is placed on other than the main
+    //     display. Therefore we only make sure centered window is on the main display
+    //     if the parent is at least partially present here.
+    if (posParent.x + widthParent >= 0)  // if parent is (partially) on the main display
+    {
+        if (xNew < 0)
+            xNew = 0;
+        else if (xNew+width > size.x)
+            xNew = size.x-width-1;
+    }
+    if (posParent.y + heightParent >= 0)  // if parent is (partially) on the main display
+    {
+        if (yNew+height > size.y)
+            yNew = size.y-height-1;
+
+        // Make certain that the title bar is initially visible
+        // always, even if this would push the bottom of the
+        // dialog of the visible area of the display
+        if (yNew < 0)
+            yNew = 0;
+    }
+
+    // move the window to this position (keeping the old size but using
+    // SetSize() and not Move() to allow xNew and/or yNew to be -1)
+    SetSize(xNew, yNew, width, height, wxSIZE_ALLOW_MINUS_ONE);
+}
+
+// fits the window around the children
+void wxWindowBase::Fit()
+{
+    if ( GetChildren().GetCount() > 0 )
+    {
+        SetClientSize(DoGetBestSize());
+    }
+    //else: do nothing if we have no children
+}
+
+// fits virtual size (ie. scrolled area etc.) around children
+void wxWindowBase::FitInside()
+{
+    if ( GetChildren().GetCount() > 0 )
+    {
+        SetVirtualSize( GetBestVirtualSize() );
+    }
+}
+
+// return the size best suited for the current window
+wxSize wxWindowBase::DoGetBestSize() const
+{
+    if ( m_windowSizer )
+    {
+        return m_windowSizer->GetMinSize();
+    }
+#if wxUSE_CONSTRAINTS
+    else if ( m_constraints )
+    {
+        wxConstCast(this, wxWindowBase)->SatisfyConstraints();
+
+        // our minimal acceptable size is such that all our windows fit inside
+        int maxX = 0,
+            maxY = 0;
+
+        for ( wxWindowList::Node *node = GetChildren().GetFirst();
+              node;
+              node = node->GetNext() )
+        {
+            wxLayoutConstraints *c = node->GetData()->GetConstraints();
+            if ( !c )
+            {
+                // it's not normal that we have an unconstrained child, but
+                // what can we do about it?
+                continue;
+            }
+
+            int x = c->right.GetValue(),
+                y = c->bottom.GetValue();
+
+            if ( x > maxX )
+                maxX = x;
+
+            if ( y > maxY )
+                maxY = y;
+
+            // TODO: we must calculate the overlaps somehow, otherwise we
+            //       will never return a size bigger than the current one :-(
+        }
+
+        return wxSize(maxX, maxY);
+    }
+#endif // wxUSE_CONSTRAINTS
+    else if ( GetChildren().GetCount() > 0 )
+    {
+        // our minimal acceptable size is such that all our windows fit inside
+        int maxX = 0,
+            maxY = 0;
+
+        for ( wxWindowList::Node *node = GetChildren().GetFirst();
+              node;
+              node = node->GetNext() )
+        {
+            wxWindow *win = node->GetData();
+            if ( win->IsTopLevel()
+#if wxUSE_STATUSBAR
+                    || wxDynamicCast(win, wxStatusBar)
+#endif // wxUSE_STATUSBAR
+               )
+            {
+                // dialogs and frames lie in different top level windows -
+                // don't deal with them here; as for the status bars, they
+                // don't lie in the client area at all
+                continue;
+            }
+
+            int wx, wy, ww, wh;
+            win->GetPosition(&wx, &wy);
+
+            // if the window hadn't been positioned yet, assume that it is in
+            // the origin
+            if ( wx == -1 )
+                wx = 0;
+            if ( wy == -1 )
+                wy = 0;
+
+            win->GetSize(&ww, &wh);
+            if ( wx + ww > maxX )
+                maxX = wx + ww;
+            if ( wy + wh > maxY )
+                maxY = wy + wh;
+        }
+
+        // for compatibility with the old versions and because it really looks
+        // slightly more pretty like this, add a pad
+        maxX += 7;
+        maxY += 14;
+
+        return wxSize(maxX, maxY);
+    }
+    else
+    {
+        // for a generic window there is no natural best size - just use the
+        // current one
+        return GetSize();
+    }
+}
+
+// by default the origin is not shifted
+wxPoint wxWindowBase::GetClientAreaOrigin() const
+{
+    return wxPoint(0, 0);
+}
+
+// set the min/max size of the window
+void wxWindowBase::SetSizeHints(int minW, int minH,
+                                int maxW, int maxH,
+                                int WXUNUSED(incW), int WXUNUSED(incH))
+{
+    // setting min width greater than max width leads to infinite loops under
+    // X11 and generally doesn't make any sense, so don't allow it
+    wxCHECK_RET( (minW == -1 || maxW == -1 || minW <= maxW) &&
+                    (minH == -1 || maxH == -1 || minH <= maxH),
+                 _T("min width/height must be less than max width/height!") );
+
+    m_minWidth = minW;
+    m_maxWidth = maxW;
+    m_minHeight = minH;
+    m_maxHeight = maxH;
+}
+
+void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
+                                        int maxW, int maxH )
+{
+    m_minVirtualWidth = minW;
+    m_maxVirtualWidth = maxW;
+    m_minVirtualHeight = minH;
+    m_maxVirtualHeight = maxH;
+}
+
+void wxWindowBase::DoSetVirtualSize( int x, int y )
+{
+    if ( m_minVirtualWidth != -1 && m_minVirtualWidth > x )
+        x = m_minVirtualWidth;
+    if ( m_maxVirtualWidth != -1 && m_maxVirtualWidth < x )
+        x = m_maxVirtualWidth;
+    if ( m_minVirtualHeight != -1 && m_minVirtualHeight > y )
+        y = m_minVirtualHeight;
+    if ( m_maxVirtualHeight != -1 && m_maxVirtualHeight < y )
+        y = m_maxVirtualHeight;
+
+    m_virtualSize = wxSize(x, y);
+}
+
+wxSize wxWindowBase::DoGetVirtualSize() const
+{
+    wxSize  s( GetClientSize() );
+
+    return wxSize( wxMax( m_virtualSize.GetWidth(), s.GetWidth() ),
+                   wxMax( m_virtualSize.GetHeight(), s.GetHeight() ) );
+}
+
+// ----------------------------------------------------------------------------
+// show/hide/enable/disable the window
+// ----------------------------------------------------------------------------
+
+bool wxWindowBase::Show(bool show)
+{
+    if ( show != m_isShown )
+    {
+        m_isShown = show;
+
+        return TRUE;
+    }
+    else
+    {
+        return FALSE;
+    }
+}
+
+bool wxWindowBase::Enable(bool enable)
+{
+    if ( enable != m_isEnabled )
+    {
+        m_isEnabled = enable;
+
+        return TRUE;
+    }
+    else
+    {
+        return FALSE;
+    }
+}
+// ----------------------------------------------------------------------------
+// RTTI
+// ----------------------------------------------------------------------------
+
+bool wxWindowBase::IsTopLevel() const
+{
+    return FALSE;
+}
+
+// ----------------------------------------------------------------------------
+// reparenting the window
+// ----------------------------------------------------------------------------
+
+void wxWindowBase::AddChild(wxWindowBase *child)
+{
+    wxCHECK_RET( child, wxT("can't add a NULL child") );
+
+    // this should never happen and it will lead to a crash later if it does
+    // because RemoveChild() will remove only one node from the children list
+    // and the other(s) one(s) will be left with dangling pointers in them
+    wxASSERT_MSG( !GetChildren().Find(child), _T("AddChild() called twice") );
+
+    GetChildren().Append(child);
+    child->SetParent(this);
+}
+
+void wxWindowBase::RemoveChild(wxWindowBase *child)
+{
+    wxCHECK_RET( child, wxT("can't remove a NULL child") );
+
+    GetChildren().DeleteObject(child);
+    child->SetParent((wxWindow *)NULL);
+}
+
+bool wxWindowBase::Reparent(wxWindowBase *newParent)
+{
+    wxWindow *oldParent = GetParent();
+    if ( newParent == oldParent )
+    {
+        // nothing done
+        return FALSE;
+    }
+
+    // unlink this window from the existing parent.
+    if ( oldParent )
+    {
+        oldParent->RemoveChild(this);
+    }
+    else
+    {
+        wxTopLevelWindows.DeleteObject(this);
+    }
+
+    // add it to the new one
+    if ( newParent )
+    {
+        newParent->AddChild(this);
+    }
+    else
+    {
+        wxTopLevelWindows.Append(this);
+    }
+
+    return TRUE;
+}
+
+// ----------------------------------------------------------------------------
+// event handler stuff
+// ----------------------------------------------------------------------------
+
+void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
+{
+    wxEvtHandler *handlerOld = GetEventHandler();
+
+    handler->SetNextHandler(handlerOld);
+
+    if ( handlerOld )
+        GetEventHandler()->SetPreviousHandler(handler);
+
+    SetEventHandler(handler);
+}
+
+wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
+{
+    wxEvtHandler *handlerA = GetEventHandler();
+    if ( handlerA )
+    {
+        wxEvtHandler *handlerB = handlerA->GetNextHandler();
+        handlerA->SetNextHandler((wxEvtHandler *)NULL);
+
+        if ( handlerB )
+            handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
+        SetEventHandler(handlerB);
+
+        if ( deleteHandler )
+        {
+            delete handlerA;
+            handlerA = (wxEvtHandler *)NULL;
+        }
+    }
+
+    return handlerA;
+}
+
+bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
+{
+    wxCHECK_MSG( handler, FALSE, _T("RemoveEventHandler(NULL) called") );
+
+    wxEvtHandler *handlerPrev = NULL,
+                 *handlerCur = GetEventHandler();
+    while ( handlerCur )
+    {
+        wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
+
+        if ( handlerCur == handler )
+        {
+            if ( handlerPrev )
+            {
+                handlerPrev->SetNextHandler(handlerNext);
+            }
+            else
+            {
+                SetEventHandler(handlerNext);
+            }
+
+            if ( handlerNext )
+            {
+                handlerNext->SetPreviousHandler ( handlerPrev );
+            }
+            handler->SetNextHandler(NULL);
+
+            return TRUE;
+        }
+
+        handlerPrev = handlerCur;
+        handlerCur = handlerNext;
+    }
+
+    wxFAIL_MSG( _T("where has the event handler gone?") );
+
+    return FALSE;
+}
+
+// ----------------------------------------------------------------------------
+// cursors, fonts &c
+// ----------------------------------------------------------------------------
+
+bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
+{
+    if ( !colour.Ok() || (colour == m_backgroundColour) )
+        return FALSE;
+
+    m_backgroundColour = colour;
+
+    m_hasBgCol = TRUE;
+
+    return TRUE;
+}
+
+bool wxWindowBase::SetForegroundColour( const wxColour &colour )
+{
+    if ( !colour.Ok() || (colour == m_foregroundColour) )
+        return FALSE;
+
+    m_foregroundColour = colour;
+
+    m_hasFgCol = TRUE;
+
+    return TRUE;
+}
+
+bool wxWindowBase::SetCursor(const wxCursor& cursor)
+{
+    // setting an invalid cursor is ok, it means that we don't have any special
+    // cursor
+    if ( m_cursor == cursor )
+    {
+        // no change
+        return FALSE;
+    }
+
+    m_cursor = cursor;
+
+    return TRUE;
+}
+
+bool wxWindowBase::SetFont(const wxFont& font)
+{
+    // don't try to set invalid font, always fall back to the default
+    const wxFont& fontOk = font.Ok() ? font : *wxSWISS_FONT;
+
+    if ( fontOk == m_font )
+    {
+        // no change
+        return FALSE;
+    }
+
+    m_font = fontOk;
+
+    m_hasFont = TRUE;
+
+    return TRUE;
+}
+
+#if wxUSE_PALETTE
+
+void wxWindowBase::SetPalette(const wxPalette& pal)
+{
+    m_hasCustomPalette = TRUE;
+    m_palette = pal;
+
+    // VZ: can anyone explain me what do we do here?
+    wxWindowDC d((wxWindow *) this);
+    d.SetPalette(pal);
+}
+
+wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const
+{
+    wxWindow *win = (wxWindow *)this;
+    while ( win && !win->HasCustomPalette() )
+    {
+        win = win->GetParent();
+    }
+
+    return win;
+}
+
+#endif // wxUSE_PALETTE
+
+#if wxUSE_CARET
+void wxWindowBase::SetCaret(wxCaret *caret)
+{
+    if ( m_caret )
+    {
+        delete m_caret;
+    }
+
+    m_caret = caret;
+
+    if ( m_caret )
+    {
+        wxASSERT_MSG( m_caret->GetWindow() == this,
+                      wxT("caret should be created associated to this window") );
+    }
+}
+#endif // wxUSE_CARET
+
+#if wxUSE_VALIDATORS
+// ----------------------------------------------------------------------------
+// validators
+// ----------------------------------------------------------------------------
+
+void wxWindowBase::SetValidator(const wxValidator& validator)
+{
+    if ( m_windowValidator )
+        delete m_windowValidator;
+
+    m_windowValidator = (wxValidator *)validator.Clone();
+
+    if ( m_windowValidator )
+        m_windowValidator->SetWindow(this) ;
+}
+#endif // wxUSE_VALIDATORS
+
+// ----------------------------------------------------------------------------
+// update region stuff
+// ----------------------------------------------------------------------------
+
+wxRect wxWindowBase::GetUpdateClientRect() const
+{
+    wxRegion rgnUpdate = GetUpdateRegion();
+    rgnUpdate.Intersect(GetClientRect());
+    wxRect rectUpdate = rgnUpdate.GetBox();
+    wxPoint ptOrigin = GetClientAreaOrigin();
+    rectUpdate.x -= ptOrigin.x;
+    rectUpdate.y -= ptOrigin.y;
+
+    return rectUpdate;
+}
+
+bool wxWindowBase::IsExposed(int x, int y) const
+{
+    return m_updateRegion.Contains(x, y) != wxOutRegion;
+}
+
+bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
+{
+    return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
+}
+
+// ----------------------------------------------------------------------------
+// find child window by id or name
+// ----------------------------------------------------------------------------
+
+wxWindow *wxWindowBase::FindWindow( long id )
+{
+    if ( id == m_windowId )
+        return (wxWindow *)this;
+
+    wxWindowBase *res = (wxWindow *)NULL;
+    wxWindowList::Node *node;
+    for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
+    {
+        wxWindowBase *child = node->GetData();
+        res = child->FindWindow( id );
+    }
+
+    return (wxWindow *)res;
+}
+
+wxWindow *wxWindowBase::FindWindow( const wxString& name )
+{
+    if ( name == m_windowName )
+        return (wxWindow *)this;
+
+    wxWindowBase *res = (wxWindow *)NULL;
+    wxWindowList::Node *node;
+    for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
+    {
+        wxWindow *child = node->GetData();
+        res = child->FindWindow(name);
+    }
+
+    return (wxWindow *)res;
+}
+
+
+// find any window by id or name or label: If parent is non-NULL, look through
+// children for a label or title matching the specified string. If NULL, look
+// through all top-level windows.
+//
+// to avoid duplicating code we reuse the same helper function but with
+// different comparators
+
+typedef bool (*wxFindWindowCmp)(const wxWindow *win,
+                                const wxString& label, long id);
+
+static
+bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label,
+                           long WXUNUSED(id))
+{
+    return win->GetLabel() == label;
+}
+
+static
+bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label,
+                          long WXUNUSED(id))
+{
+    return win->GetName() == label;
+}
+
+static
+bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label),
+                        long id)
+{
+    return win->GetId() == id;
+}
+
+// recursive helper for the FindWindowByXXX() functions
+static
+wxWindow *wxFindWindowRecursively(const wxWindow *parent,
+                                  const wxString& label,
+                                  long id,
+                                  wxFindWindowCmp cmp)
+{
+    if ( parent )
+    {
+        // see if this is the one we're looking for
+        if ( (*cmp)(parent, label, id) )
+            return (wxWindow *)parent;
+
+        // It wasn't, so check all its children
+        for ( wxWindowList::Node * node = parent->GetChildren().GetFirst();
+              node;
+              node = node->GetNext() )
+        {
+            // recursively check each child
+            wxWindow *win = (wxWindow *)node->GetData();
+            wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
+            if (retwin)
+                return retwin;
+        }
+    }
+
+    // Not found
+    return NULL;
+}
+
+// helper for FindWindowByXXX()
+static
+wxWindow *wxFindWindowHelper(const wxWindow *parent,
+                             const wxString& label,
+                             long id,
+                             wxFindWindowCmp cmp)
+{
+    if ( parent )
+    {
+        // just check parent and all its children
+        return wxFindWindowRecursively(parent, label, id, cmp);
+    }
+
+    // start at very top of wx's windows
+    for ( wxWindowList::Node * node = wxTopLevelWindows.GetFirst();
+          node;
+          node = node->GetNext() )
+    {
+        // recursively check each window & its children
+        wxWindow *win = node->GetData();
+        wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp);
+        if (retwin)
+            return retwin;
+    }
+
+    return NULL;
+}
+
+/* static */
+wxWindow *
+wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent)
+{
+    return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels);
+}
+
+/* static */
+wxWindow *
+wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
+{
+    wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames);
+
+    if ( !win )
+    {
+        // fall back to the label
+        win = FindWindowByLabel(title, parent);
+    }
+
+    return win;
+}
+
+/* static */
+wxWindow *
+wxWindowBase::FindWindowById( long id, const wxWindow* parent )
+{
+    return wxFindWindowHelper(parent, _T(""), id, wxFindWindowCmpIds);
+}
+
+// ----------------------------------------------------------------------------
+// dialog oriented functions
+// ----------------------------------------------------------------------------
+
+void wxWindowBase::MakeModal(bool modal)
+{
+    // Disable all other windows
+    if ( IsTopLevel() )
+    {
+        wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
+        while (node)
+        {
+            wxWindow *win = node->GetData();
+            if (win != this)
+                win->Enable(!modal);
+
+            node = node->GetNext();
+        }
+    }
+}
+
+bool wxWindowBase::Validate()
+{
+#if wxUSE_VALIDATORS
+    bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
+
+    wxWindowList::Node *node;
+    for ( node = m_children.GetFirst(); node; node = node->GetNext() )
+    {
+        wxWindowBase *child = node->GetData();
+        wxValidator *validator = child->GetValidator();
+        if ( validator && !validator->Validate((wxWindow *)this) )
+        {
+            return FALSE;
+        }
+
+        if ( recurse && !child->Validate() )
+        {
+            return FALSE;
+        }
+    }
+#endif // wxUSE_VALIDATORS
+
+    return TRUE;
+}
+
+bool wxWindowBase::TransferDataToWindow()
+{
+#if wxUSE_VALIDATORS
+    bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
+
+    wxWindowList::Node *node;
+    for ( node = m_children.GetFirst(); node; node = node->GetNext() )
+    {
+        wxWindowBase *child = node->GetData();
+        wxValidator *validator = child->GetValidator();
+        if ( validator && !validator->TransferToWindow() )
+        {
+            wxLogWarning(_("Could not transfer data to window"));
+#if wxUSE_LOG
+            wxLog::FlushActive();
+#endif // wxUSE_LOG
+
+            return FALSE;
+        }
+
+        if ( recurse )
+        {
+            if ( !child->TransferDataToWindow() )
+            {
+                // warning already given
+                return FALSE;
+            }
+        }
+    }
+#endif // wxUSE_VALIDATORS
+
+    return TRUE;
+}
+
+bool wxWindowBase::TransferDataFromWindow()
+{
+#if wxUSE_VALIDATORS
+    bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0;
+
+    wxWindowList::Node *node;
+    for ( node = m_children.GetFirst(); node; node = node->GetNext() )
+    {
+        wxWindow *child = node->GetData();
+        wxValidator *validator = child->GetValidator();
+        if ( validator && !validator->TransferFromWindow() )
+        {
+            // nop warning here because the application is supposed to give
+            // one itself - we don't know here what might have gone wrongly
+
+            return FALSE;
+        }
+
+        if ( recurse )
+        {
+            if ( !child->TransferDataFromWindow() )
+            {
+                // warning already given
+                return FALSE;
+            }
+        }
+    }
+#endif // wxUSE_VALIDATORS
+
+    return TRUE;
+}
+
+void wxWindowBase::InitDialog()
+{
+    wxInitDialogEvent event(GetId());
+    event.SetEventObject( this );
+    GetEventHandler()->ProcessEvent(event);
+}
+
+// ----------------------------------------------------------------------------
+// context-sensitive help support
+// ----------------------------------------------------------------------------
+
+#if wxUSE_HELP
+
+// associate this help text with this window
+void wxWindowBase::SetHelpText(const wxString& text)
+{
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+    {
+        helpProvider->AddHelp(this, text);
+    }
+}
+
+// associate this help text with all windows with the same id as this
+// one
+void wxWindowBase::SetHelpTextForId(const wxString& text)
+{
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+    {
+        helpProvider->AddHelp(GetId(), text);
+    }
+}
+
+// get the help string associated with this window (may be empty)
+wxString wxWindowBase::GetHelpText() const
+{
+    wxString text;
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+    {
+        text = helpProvider->GetHelp(this);
+    }
+
+    return text;
+}
+
+// show help for this window
+void wxWindowBase::OnHelp(wxHelpEvent& event)
+{
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+    {
+        if ( helpProvider->ShowHelp(this) )
+        {
+            // skip the event.Skip() below
+            return;
+        }
+    }
+
+    event.Skip();
+}
+
+#endif // wxUSE_HELP
+
+// ----------------------------------------------------------------------------
+// tooltipsroot.Replace("\\", "/");
+// ----------------------------------------------------------------------------
+
+#if wxUSE_TOOLTIPS
+
+void wxWindowBase::SetToolTip( const wxString &tip )
+{
+    // don't create the new tooltip if we already have one
+    if ( m_tooltip )
+    {
+        m_tooltip->SetTip( tip );
+    }
+    else
+    {
+        SetToolTip( new wxToolTip( tip ) );
+    }
+
+    // setting empty tooltip text does not remove the tooltip any more - use
+    // SetToolTip((wxToolTip *)NULL) for this
+}
+
+void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
+{
+    if ( m_tooltip )
+        delete m_tooltip;
+
+    m_tooltip = tooltip;
+}
+
+#endif // wxUSE_TOOLTIPS
+
+// ----------------------------------------------------------------------------
+// constraints and sizers
+// ----------------------------------------------------------------------------
+
+#if wxUSE_CONSTRAINTS
+
+void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints )
+{
+    if ( m_constraints )
+    {
+        UnsetConstraints(m_constraints);
+        delete m_constraints;
+    }
+    m_constraints = constraints;
+    if ( m_constraints )
+    {
+        // Make sure other windows know they're part of a 'meaningful relationship'
+        if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) )
+            m_constraints->left.GetOtherWindow()->AddConstraintReference(this);
+        if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) )
+            m_constraints->top.GetOtherWindow()->AddConstraintReference(this);
+        if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) )
+            m_constraints->right.GetOtherWindow()->AddConstraintReference(this);
+        if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) )
+            m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this);
+        if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) )
+            m_constraints->width.GetOtherWindow()->AddConstraintReference(this);
+        if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) )
+            m_constraints->height.GetOtherWindow()->AddConstraintReference(this);
+        if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) )
+            m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this);
+        if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) )
+            m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this);
+    }
+}
+
+// This removes any dangling pointers to this window in other windows'
+// constraintsInvolvedIn lists.
+void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
+{
+    if ( c )
+    {
+        if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
+            c->left.GetOtherWindow()->RemoveConstraintReference(this);
+        if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
+            c->top.GetOtherWindow()->RemoveConstraintReference(this);
+        if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) )
+            c->right.GetOtherWindow()->RemoveConstraintReference(this);
+        if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) )
+            c->bottom.GetOtherWindow()->RemoveConstraintReference(this);
+        if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) )
+            c->width.GetOtherWindow()->RemoveConstraintReference(this);
+        if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) )
+            c->height.GetOtherWindow()->RemoveConstraintReference(this);
+        if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) )
+            c->centreX.GetOtherWindow()->RemoveConstraintReference(this);
+        if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) )
+            c->centreY.GetOtherWindow()->RemoveConstraintReference(this);
+    }
+}
+
+// Back-pointer to other windows we're involved with, so if we delete this
+// window, we must delete any constraints we're involved with.
+void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin)
+{
+    if ( !m_constraintsInvolvedIn )
+        m_constraintsInvolvedIn = new wxWindowList;
+    if ( !m_constraintsInvolvedIn->Find(otherWin) )
+        m_constraintsInvolvedIn->Append(otherWin);
+}
+
+// REMOVE back-pointer to other windows we're involved with.
+void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin)
+{
+    if ( m_constraintsInvolvedIn )
+        m_constraintsInvolvedIn->DeleteObject(otherWin);
+}
+
+// Reset any constraints that mention this window
+void wxWindowBase::DeleteRelatedConstraints()
+{
+    if ( m_constraintsInvolvedIn )
+    {
+        wxWindowList::Node *node = m_constraintsInvolvedIn->GetFirst();
+        while (node)
+        {
+            wxWindow *win = node->GetData();
+            wxLayoutConstraints *constr = win->GetConstraints();
+
+            // Reset any constraints involving this window
+            if ( constr )
+            {
+                constr->left.ResetIfWin(this);
+                constr->top.ResetIfWin(this);
+                constr->right.ResetIfWin(this);
+                constr->bottom.ResetIfWin(this);
+                constr->width.ResetIfWin(this);
+                constr->height.ResetIfWin(this);
+                constr->centreX.ResetIfWin(this);
+                constr->centreY.ResetIfWin(this);
+            }
+
+            wxWindowList::Node *next = node->GetNext();
+            delete node;
+            node = next;
+        }
+
+        delete m_constraintsInvolvedIn;
+        m_constraintsInvolvedIn = (wxWindowList *) NULL;
+    }
+}
+
+#endif // wxUSE_CONSTRAINTS
+
+void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld)
+{
+    if ( deleteOld )
+        delete m_windowSizer;
+
+    m_windowSizer = sizer;
+
+    SetAutoLayout( sizer != NULL );
+}
+
+void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld)
+{
+    SetSizer( sizer, deleteOld );
+    sizer->SetSizeHints( (wxWindow*) this );
+}
+
+#if wxUSE_CONSTRAINTS
+
+void wxWindowBase::SatisfyConstraints()
+{
+    wxLayoutConstraints *constr = GetConstraints();
+    bool wasOk = constr && constr->AreSatisfied();
+
+    ResetConstraints();   // Mark all constraints as unevaluated
+
+    int noChanges = 1;
+
+    // if we're a top level panel (i.e. our parent is frame/dialog), our
+    // own constraints will never be satisfied any more unless we do it
+    // here
+    if ( wasOk )
+    {
+        while ( noChanges > 0 )
+        {
+            LayoutPhase1(&noChanges);
+        }
+    }
+
+    LayoutPhase2(&noChanges);
+}
+
+#endif // wxUSE_CONSTRAINTS
+
+bool wxWindowBase::Layout()
+{
+    // If there is a sizer, use it instead of the constraints
+    if ( GetSizer() )
+    {
+        int w, h;
+        GetVirtualSize(&w, &h);
+        GetSizer()->SetDimension( 0, 0, w, h );
+    }
+#if wxUSE_CONSTRAINTS
+    else
+    {
+        SatisfyConstraints(); // Find the right constraints values
+        SetConstraintSizes(); // Recursively set the real window sizes
+    }
+#endif
+
+    return TRUE;
+}
+
+#if wxUSE_CONSTRAINTS
+
+// first phase of the constraints evaluation: set our own constraints
+bool wxWindowBase::LayoutPhase1(int *noChanges)
+{
+    wxLayoutConstraints *constr = GetConstraints();
+
+    return !constr || constr->SatisfyConstraints(this, noChanges);
+}
+
+// second phase: set the constraints for our children
+bool wxWindowBase::LayoutPhase2(int *noChanges)
+{
+    *noChanges = 0;
+
+    // Layout children
+    DoPhase(1);
+
+    // Layout grand children
+    DoPhase(2);
+
+    return TRUE;
+}
+
+// Do a phase of evaluating child constraints
+bool wxWindowBase::DoPhase(int phase)
+{
+    // the list containing the children for which the constraints are already
+    // set correctly
+    wxWindowList succeeded;
+
+    // the max number of iterations we loop before concluding that we can't set
+    // the constraints
+    static const int maxIterations = 500;
+
+    for ( int noIterations = 0; noIterations < maxIterations; noIterations++ )
+    {
+        int noChanges = 0;
+
+        // loop over all children setting their constraints
+        for ( wxWindowList::Node *node = GetChildren().GetFirst();
+              node;
+              node = node->GetNext() )
+        {
+            wxWindow *child = node->GetData();
+            if ( child->IsTopLevel() )
+            {
+                // top level children are not inside our client area
+                continue;
+            }
+
+            if ( !child->GetConstraints() || succeeded.Find(child) )
+            {
+                // this one is either already ok or nothing we can do about it
+                continue;
+            }
+
+            int tempNoChanges = 0;
+            bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges)
+                                      : child->LayoutPhase2(&tempNoChanges);
+            noChanges += tempNoChanges;
+
+            if ( success )
+            {
+                succeeded.Append(child);
+            }
+        }
+
+        if ( !noChanges )
+        {
+            // constraints are set
+            break;
+        }
+    }
+
+    return TRUE;
+}
+
+void wxWindowBase::ResetConstraints()
+{
+    wxLayoutConstraints *constr = GetConstraints();
+    if ( constr )
+    {
+        constr->left.SetDone(FALSE);
+        constr->top.SetDone(FALSE);
+        constr->right.SetDone(FALSE);
+        constr->bottom.SetDone(FALSE);
+        constr->width.SetDone(FALSE);
+        constr->height.SetDone(FALSE);
+        constr->centreX.SetDone(FALSE);
+        constr->centreY.SetDone(FALSE);
+    }
+
+    wxWindowList::Node *node = GetChildren().GetFirst();
+    while (node)
+    {
+        wxWindow *win = node->GetData();
+        if ( !win->IsTopLevel() )
+            win->ResetConstraints();
+        node = node->GetNext();
+    }
+}
+
+// Need to distinguish between setting the 'fake' size for windows and sizers,
+// and setting the real values.
+void wxWindowBase::SetConstraintSizes(bool recurse)
+{
+    wxLayoutConstraints *constr = GetConstraints();
+    if ( constr && constr->AreSatisfied() )
+    {
+        int x = constr->left.GetValue();
+        int y = constr->top.GetValue();
+        int w = constr->width.GetValue();
+        int h = constr->height.GetValue();
+
+        if ( (constr->width.GetRelationship() != wxAsIs ) ||
+             (constr->height.GetRelationship() != wxAsIs) )
+        {
+            SetSize(x, y, w, h);
+        }
+        else
+        {
+            // If we don't want to resize this window, just move it...
+            Move(x, y);
+        }
+    }
+    else if ( constr )
+    {
+        wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."),
+                   GetClassInfo()->GetClassName(),
+                   GetName().c_str());
+    }
+
+    if ( recurse )
+    {
+        wxWindowList::Node *node = GetChildren().GetFirst();
+        while (node)
+        {
+            wxWindow *win = node->GetData();
+            if ( !win->IsTopLevel() && win->GetConstraints() )
+                win->SetConstraintSizes();
+            node = node->GetNext();
+        }
+    }
+}
+
+// Only set the size/position of the constraint (if any)
+void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h)
+{
+    wxLayoutConstraints *constr = GetConstraints();
+    if ( constr )
+    {
+        if ( x != -1 )
+        {
+            constr->left.SetValue(x);
+            constr->left.SetDone(TRUE);
+        }
+        if ( y != -1 )
+        {
+            constr->top.SetValue(y);
+            constr->top.SetDone(TRUE);
+        }
+        if ( w != -1 )
+        {
+            constr->width.SetValue(w);
+            constr->width.SetDone(TRUE);
+        }
+        if ( h != -1 )
+        {
+            constr->height.SetValue(h);
+            constr->height.SetDone(TRUE);
+        }
+    }
+}
+
+void wxWindowBase::MoveConstraint(int x, int y)
+{
+    wxLayoutConstraints *constr = GetConstraints();
+    if ( constr )
+    {
+        if ( x != -1 )
+        {
+            constr->left.SetValue(x);
+            constr->left.SetDone(TRUE);
+        }
+        if ( y != -1 )
+        {
+            constr->top.SetValue(y);
+            constr->top.SetDone(TRUE);
+        }
+    }
+}
+
+void wxWindowBase::GetSizeConstraint(int *w, int *h) const
+{
+    wxLayoutConstraints *constr = GetConstraints();
+    if ( constr )
+    {
+        *w = constr->width.GetValue();
+        *h = constr->height.GetValue();
+    }
+    else
+        GetSize(w, h);
+}
+
+void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const
+{
+    wxLayoutConstraints *constr = GetConstraints();
+    if ( constr )
+    {
+        *w = constr->width.GetValue();
+        *h = constr->height.GetValue();
+    }
+    else
+        GetClientSize(w, h);
+}
 
-#ifdef __BORLANDC__
-#pragma hdrstop
-#endif
+void wxWindowBase::GetPositionConstraint(int *x, int *y) const
+{
+    wxLayoutConstraints *constr = GetConstraints();
+    if ( constr )
+    {
+        *x = constr->left.GetValue();
+        *y = constr->top.GetValue();
+    }
+    else
+        GetPosition(x, y);
+}
 
-#include "wx/frame.h"
-#include "wx/defs.h"
-#include "wx/window.h"
+#endif // wxUSE_CONSTRAINTS
 
-// Do Update UI processing for child controls
+void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const
+{
+    // don't do it for the dialogs/frames - they float independently of their
+    // parent
+    if ( !IsTopLevel() )
+    {
+        wxWindow *parent = GetParent();
+        if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
+        {
+            wxPoint pt(parent->GetClientAreaOrigin());
+            x += pt.x;
+            y += pt.y;
+        }
+    }
+}
 
-// TODO: should this be implemented for the child window rather
-// than the parent? Then you can override it e.g. for wxCheckBox
-// to do the Right Thing rather than having to assume a fixed number
-// of control classes.
-#include "wx/checkbox.h"
-#include "wx/radiobut.h"
+// ----------------------------------------------------------------------------
+// do Update UI processing for child controls
+// ----------------------------------------------------------------------------
 
-void wxWindow::UpdateWindowUI()
+void wxWindowBase::UpdateWindowUI(long flags)
 {
-  wxWindowID id = GetId();
-  if (id > 0)
-  {
-    wxUpdateUIEvent event(id);
+    wxUpdateUIEvent event(GetId());
     event.m_eventObject = this;
 
-    if (this->GetEventHandler()->ProcessEvent(event))
-    {
-      if (event.GetSetEnabled())
-        this->Enable(event.GetEnabled());
-
-      if (event.GetSetText() && this->IsKindOf(CLASSINFO(wxControl)))
-        ((wxControl*)this)->SetLabel(event.GetText());
-
-      if (this->IsKindOf(CLASSINFO(wxCheckBox)))
-      {
-        if (event.GetSetChecked())
-          ((wxCheckBox *) this)->SetValue(event.GetChecked());
-      }
-      // @@@ No radio buttons in wxGTK yet
-#ifndef __WXGTK__
-      else if (this->IsKindOf(CLASSINFO(wxRadioButton)))
-      {
-        if (event.GetSetChecked())
-          ((wxRadioButton *) this)->SetValue(event.GetChecked());
-      }
+    if ( GetEventHandler()->ProcessEvent(event) )
+    {
+        DoUpdateWindowUI(event);
+    }
+
+    if (flags & wxUPDATE_UI_RECURSE)
+    {
+        wxWindowList::Node* node = GetChildren().GetFirst();
+        while (node)
+        {
+            wxWindow* child = (wxWindow*) node->GetData();
+            child->UpdateWindowUI(flags);
+            node = node->GetNext();
+        }
+    }
+}
+
+// do the window-specific processing after processing the update event
+// TODO: take specific knowledge out of this function and
+// put in each control's base class. Unfortunately we don't
+// yet have base implementation files for wxCheckBox and wxRadioButton.
+void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
+{
+    if ( event.GetSetEnabled() )
+        Enable(event.GetEnabled());
+    
+#if wxUSE_CONTROLS
+    if ( event.GetSetText() )
+    {
+        wxControl *control = wxDynamicCastThis(wxControl);
+        if ( control )
+        {
+            if ( event.GetText() != control->GetLabel() )
+                control->SetLabel(event.GetText());
+        }
+#if wxUSE_CHECKBOX
+        wxCheckBox *checkbox = wxDynamicCastThis(wxCheckBox);
+        if ( checkbox )
+        {
+            if ( event.GetSetChecked() )
+                checkbox->SetValue(event.GetChecked());
+        }
+#endif // wxUSE_CHECKBOX
+
+#if wxUSE_RADIOBTN
+        wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);
+        if ( radiobtn )
+        {
+            if ( event.GetSetChecked() )
+                radiobtn->SetValue(event.GetChecked());
+        }
+#endif // wxUSE_RADIOBTN
+    }    
 #endif
+}
+
+// call internal idle recursively
+void wxWindowBase::ProcessInternalIdle()
+{
+    OnInternalIdle();
+
+    wxWindowList::Node  *node = GetChildren().GetFirst();
+    while (node)
+    {
+        wxWindow *child = node->GetData();
+        child->ProcessInternalIdle();
+        node = node->GetNext();
     }
-  }
 }
 
-// Dialog units translations. Implemented in wincmn.cpp.
-wxPoint wxWindow::ConvertPixelsToDialog(const wxPoint& pt)
+// ----------------------------------------------------------------------------
+// dialog units translations
+// ----------------------------------------------------------------------------
+
+wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt)
 {
     int charWidth = GetCharWidth();
     int charHeight = GetCharHeight();
-    wxPoint pt2;
-    pt2.x = (int) ((pt.x * 4) / charWidth) ;
-    pt2.y = (int) ((pt.y * 8) / charHeight) ;
+    wxPoint pt2(-1, -1);
+    if (pt.x != -1)
+        pt2.x = (int) ((pt.x * 4) / charWidth) ;
+    if (pt.y != -1)
+        pt2.y = (int) ((pt.y * 8) / charHeight) ;
 
     return pt2;
 }
 
-wxPoint wxWindow::ConvertDialogToPixels(const wxPoint& pt)
+wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt)
 {
     int charWidth = GetCharWidth();
     int charHeight = GetCharHeight();
-    wxPoint pt2;
-    pt2.x = (int) ((pt.x * charWidth) / 4) ;
-    pt2.y = (int) ((pt.y * charHeight) / 8) ;
+    wxPoint pt2(-1, -1);
+    if (pt.x != -1)
+        pt2.x = (int) ((pt.x * charWidth) / 4) ;
+    if (pt.y != -1)
+        pt2.y = (int) ((pt.y * charHeight) / 8) ;
 
     return pt2;
 }
 
+// ----------------------------------------------------------------------------
+// event handlers
+// ----------------------------------------------------------------------------
+
+// propagate the colour change event to the subwindows
+void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event)
+{
+    wxWindowList::Node *node = GetChildren().GetFirst();
+    while ( node )
+    {
+        // Only propagate to non-top-level windows
+        wxWindow *win = node->GetData();
+        if ( !win->IsTopLevel() )
+        {
+            wxSysColourChangedEvent event2;
+            event.m_eventObject = win;
+            win->GetEventHandler()->ProcessEvent(event2);
+        }
+
+        node = node->GetNext();
+    }
+}
+
+// the default action is to populate dialog with data when it's created,
+// and nudge the UI into displaying itself correctly in case
+// we've turned the wxUpdateUIEvents frequency down low.
+void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
+{
+    TransferDataToWindow();
+    
+    // Update the UI at this point
+    UpdateWindowUI(wxUPDATE_UI_RECURSE);
+}
+
+// process Ctrl-Alt-mclick
+void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
+{
+#if wxUSE_MSGDLG
+    if ( event.ControlDown() && event.AltDown() )
+    {
+        // don't translate these strings
+        wxString port;
+
+#ifdef __WXUNIVERSAL__
+        port = _T("Univ/");
+#endif // __WXUNIVERSAL__
+
+        switch ( wxGetOsVersion() )
+        {
+            case wxMOTIF_X:     port += _T("Motif"); break;
+            case wxMAC:
+            case wxMAC_DARWIN:  port += _T("Mac"); break;
+            case wxBEOS:        port += _T("BeOS"); break;
+            case wxGTK:
+            case wxGTK_WIN32:
+            case wxGTK_OS2:
+            case wxGTK_BEOS:    port += _T("GTK"); break;
+            case wxWINDOWS:
+            case wxPENWINDOWS:
+            case wxWINDOWS_NT:
+            case wxWIN32S:
+            case wxWIN95:
+            case wxWIN386:      port += _T("MS Windows"); break;
+            case wxMGL_UNIX:
+            case wxMGL_X:
+            case wxMGL_WIN32:
+            case wxMGL_OS2:     port += _T("MGL"); break;
+            case wxWINDOWS_OS2:
+            case wxOS2_PM:      port += _T("OS/2"); break;
+            default:            port += _T("unknown"); break;
+        }
+
+        wxMessageBox(wxString::Format(
+                                      _T(
+                                        "       wxWindows Library (%s port)\nVersion %u.%u.%u%s, compiled at %s %s\n   Copyright (c) 1995-2002 wxWindows team"
+                                        ),
+                                      port.c_str(),
+                                      wxMAJOR_VERSION,
+                                      wxMINOR_VERSION,
+                                      wxRELEASE_NUMBER,
+#if wxUSE_UNICODE
+                                      L" (Unicode)",
+#else
+                                      "",
+#endif
+                                      __TDATE__,
+                                      __TTIME__
+                                     ),
+                     _T("wxWindows information"),
+                     wxICON_INFORMATION | wxOK,
+                     (wxWindow *)this);
+    }
+    else
+#endif // wxUSE_MSGDLG
+    {
+        event.Skip();
+    }
+}
+
+// ----------------------------------------------------------------------------
+// accessibility
+// ----------------------------------------------------------------------------
+
+#if wxUSE_ACCESSIBILITY
+void wxWindowBase::SetAccessible(wxAccessible* accessible)
+{
+    if (m_accessible && (accessible != m_accessible))
+        delete m_accessible;
+    m_accessible = accessible;
+    if (m_accessible)
+        m_accessible->SetWindow((wxWindow*) this);
+}
+
+// Returns the accessible object, creating if necessary.
+wxAccessible* wxWindowBase::GetOrCreateAccessible()
+{
+    if (!m_accessible)
+        m_accessible = CreateAccessible();
+    return m_accessible;
+}
+
+// Override to create a specific accessible object.
+wxAccessible* wxWindowBase::CreateAccessible()
+{
+    return new wxWindowAccessible((wxWindow*) this);
+}
+
+#endif
+
+// ----------------------------------------------------------------------------
+// list classes implementation
+// ----------------------------------------------------------------------------
+
+void wxWindowListNode::DeleteData()
+{
+    delete (wxWindow *)GetData();
+}
+
+// ----------------------------------------------------------------------------
+// borders
+// ----------------------------------------------------------------------------
+
+wxBorder wxWindowBase::GetBorder(long flags) const
+{
+    wxBorder border = (wxBorder)(flags & wxBORDER_MASK);
+    if ( border == wxBORDER_DEFAULT )
+    {
+        border = GetDefaultBorder();
+    }
+
+    return border;
+}
+
+wxBorder wxWindowBase::GetDefaultBorder() const
+{
+    return wxBORDER_NONE;
+}
+
+// ----------------------------------------------------------------------------
+// hit testing
+// ----------------------------------------------------------------------------
+
+wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const
+{
+    // here we just check if the point is inside the window or not
+
+    // check the top and left border first
+    bool outside = x < 0 || y < 0;
+    if ( !outside )
+    {
+        // check the right and bottom borders too
+        wxSize size = GetSize();
+        outside = x >= size.x || y >= size.y;
+    }
+
+    return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE;
+}
+
+// ----------------------------------------------------------------------------
+// mouse capture
+// ----------------------------------------------------------------------------
+
+struct WXDLLEXPORT wxWindowNext
+{
+    wxWindow *win;
+    wxWindowNext *next;
+} *wxWindowBase::ms_winCaptureNext = NULL;
+
+void wxWindowBase::CaptureMouse()
+{
+    wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), this);
+
+    wxWindow *winOld = GetCapture();
+    if ( winOld )
+    {
+        ((wxWindowBase*) winOld)->DoReleaseMouse();
+
+        // save it on stack
+        wxWindowNext *item = new wxWindowNext;
+        item->win = winOld;
+        item->next = ms_winCaptureNext;
+        ms_winCaptureNext = item;
+    }
+    //else: no mouse capture to save
+
+    DoCaptureMouse();
+}
+
+void wxWindowBase::ReleaseMouse()
+{
+    wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), this);
+
+    wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
+
+    DoReleaseMouse();
+
+    if ( ms_winCaptureNext )
+    {
+        ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse();
+
+        wxWindowNext *item = ms_winCaptureNext;
+        ms_winCaptureNext = item->next;
+        delete item;
+    }
+    //else: stack is empty, no previous capture
+
+    wxLogTrace(_T("mousecapture"),
+               _T("After ReleaseMouse() mouse is captured by %p"),
+               GetCapture());
+}
+
+#if wxUSE_HOTKEY
+
+bool
+wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId),
+                             int WXUNUSED(modifiers),
+                             int WXUNUSED(keycode))
+{
+    // not implemented
+    return false;
+}
+
+bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId))
+{
+    // not implemented
+    return false;
+}
+
+#endif // wxUSE_HOTKEY
+
+void wxWindowBase::SendDestroyEvent()
+{
+    wxWindowDestroyEvent event;
+    event.SetEventObject(this);
+    event.SetId(GetId());
+    GetEventHandler()->ProcessEvent(event);
+}
+
+// ----------------------------------------------------------------------------
+// event processing
+// ----------------------------------------------------------------------------
+
+#if wxUSE_VALIDATORS
+
+bool wxWindowBase::TryValidator(wxEvent& event)
+{
+    // Can only use the validator of the window which
+    // is receiving the event
+    if ( event.GetEventObject() == this )
+    {
+        wxValidator *validator = GetValidator();
+        if ( validator && validator->ProcessEvent(event) )
+        {
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+}
+
+#endif // wxUSE_VALIDATORS
+
+bool wxWindowBase::TryParent(wxEvent& event)
+{
+    // Carry on up the parent-child hierarchy, but only if event is a command
+    // event: it wouldn't make sense for a parent to receive a child's size
+    // event, for example
+    if ( event.IsCommandEvent() )
+    {
+        // honour the requests to stop propagation at this window: this is
+        // used by the dialogs, for example, to prevent processing the events
+        // from the dialog controls in the parent frame which rarely, if ever,
+        // makes sense
+        if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
+        {
+            wxWindow *parent = GetParent();
+            if ( parent && !parent->IsBeingDeleted() )
+                return parent->GetEventHandler()->ProcessEvent(event);
+        }
+    }
+
+    return wxEvtHandler::TryParent(event);
+}
+
+// ----------------------------------------------------------------------------
+// global functions
+// ----------------------------------------------------------------------------
+
+wxWindow* wxGetTopLevelParent(wxWindow *win)
+{
+    while ( win && !win->IsTopLevel() )
+         win = win->GetParent();
+
+    return win;
+}
+
+#if wxUSE_ACCESSIBILITY
+// ----------------------------------------------------------------------------
+// accessible object for windows
+// ----------------------------------------------------------------------------
+
+// Can return either a child object, or an integer
+// representing the child element, starting from 1.
+wxAccStatus wxWindowAccessible::HitTest(const wxPoint& pt, int* childId, wxAccessible** childObject)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Returns the rectangle for this object (id = 0) or a child element (id > 0).
+wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    wxWindow* win = NULL;
+    if (elementId == 0)
+    {
+        win = GetWindow();
+    }
+    else
+    {
+        if (elementId <= (int) GetWindow()->GetChildren().GetCount())
+        {
+            win = (wxWindow*) GetWindow()->GetChildren().Nth(elementId-1)->GetData();
+        }
+        else
+            return wxACC_FAIL;
+    }
+    if (win)
+    {
+        rect = win->GetRect();
+        if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
+            rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
+        return wxACC_OK;
+    }
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Navigates from fromId to toId/toObject.
+wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId,
+                             int* toId, wxAccessible** toObject)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    switch (navDir)
+    {
+    case wxNAVDIR_FIRSTCHILD:
+        {
+            if (GetWindow()->GetChildren().GetCount() == 0)
+                return wxACC_FALSE;
+            wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData();
+            *toObject = childWindow->GetOrCreateAccessible();
+
+            return wxACC_OK;
+        }
+    case wxNAVDIR_LASTCHILD:
+        {
+            if (GetWindow()->GetChildren().GetCount() == 0)
+                return wxACC_FALSE;
+            wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData();
+            *toObject = childWindow->GetOrCreateAccessible();
+
+            return wxACC_OK;
+        }
+    case wxNAVDIR_RIGHT:
+    case wxNAVDIR_DOWN:
+    case wxNAVDIR_NEXT:
+        {
+            wxWindowList::Node *node = NULL;
+            if (fromId == 0)
+            {
+                // Can't navigate to sibling of this window
+                // if we're a top-level window.
+                if (!GetWindow()->GetParent())
+                    return wxACC_NOT_IMPLEMENTED;
+
+                node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
+            }
+            else
+            {
+                if (fromId <= (int) GetWindow()->GetChildren().GetCount())
+                    node = (wxWindowList::Node*) GetWindow()->GetChildren().Nth(fromId-1);
+            }
+
+            if (node && node->GetNext())
+            {
+                wxWindow* nextWindow = (wxWindow*) node->GetNext()->Data();
+                *toObject = nextWindow->GetOrCreateAccessible();
+                return wxACC_OK;
+            }
+            else
+                return wxACC_FALSE;
+        }
+    case wxNAVDIR_LEFT:
+    case wxNAVDIR_UP:
+    case wxNAVDIR_PREVIOUS:
+        {
+            wxWindowList::Node *node = NULL;
+            if (fromId == 0)
+            {
+                // Can't navigate to sibling of this window
+                // if we're a top-level window.
+                if (!GetWindow()->GetParent())
+                    return wxACC_NOT_IMPLEMENTED;
+
+                node = GetWindow()->GetParent()->GetChildren().Find(GetWindow());
+            }
+            else
+            {
+                if (fromId <= (int) GetWindow()->GetChildren().GetCount())
+                    node = (wxWindowList::Node*) GetWindow()->GetChildren().Nth(fromId-1);
+            }
+
+            if (node && node->GetPrevious())
+            {
+                wxWindow* previousWindow = (wxWindow*) node->GetPrevious()->Data();
+                *toObject = previousWindow->GetOrCreateAccessible();
+                return wxACC_OK;
+            }
+            else
+                return wxACC_FALSE;
+        }
+    }
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Gets the name of the specified object.
+wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    wxString title;
+
+    // If a child, leave wxWindows to call the function on the actual
+    // child object.
+    if (childId > 0)
+        return wxACC_NOT_IMPLEMENTED;
+
+    // This will eventually be replaced by specialised
+    // accessible classes, one for each kind of wxWindows
+    // control or window.
+    if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
+        title = ((wxButton*) GetWindow())->GetLabel();
+    else
+        title = GetWindow()->GetName();
+    
+    if (!title.IsEmpty())
+    {
+        *name = title;
+        return wxACC_OK;
+    }
+    else
+        return wxACC_NOT_IMPLEMENTED;
+}
+
+// Gets the number of children.
+wxAccStatus wxWindowAccessible::GetChildCount(int* childId)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    *childId = (int) GetWindow()->GetChildren().GetCount();
+    return wxACC_OK;
+}
+
+// Gets the specified child (starting from 1).
+// If *child is NULL and return value is wxACC_OK,
+// this means that the child is a simple element and
+// not an accessible object.
+wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    if (childId == 0)
+    {
+        *child = this;
+        return wxACC_OK;
+    }
+
+    if (childId > (int) GetWindow()->GetChildren().GetCount())
+        return wxACC_FAIL;
+
+    wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().Nth(childId-1)->GetData();
+    *child = childWindow->GetOrCreateAccessible();
+    if (*child)
+        return wxACC_OK;
+    else
+        return wxACC_FAIL;
+}
+
+// Gets the parent, or NULL.
+wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    wxWindow* parentWindow = GetWindow()->GetParent();
+    if (!parentWindow)
+    {
+        *parent = NULL;
+        return wxACC_OK;
+    }
+    else
+    {
+        *parent = parentWindow->GetOrCreateAccessible();
+        if (*parent)
+            return wxACC_OK;
+        else
+            return wxACC_FAIL;
+    }
+}
+
+// Performs the default action. childId is 0 (the action for this object)
+// or > 0 (the action for a child).
+// Return wxACC_NOT_SUPPORTED if there is no default action for this
+// window (e.g. an edit control).
+wxAccStatus wxWindowAccessible::DoDefaultAction(int childId)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Gets the default action for this object (0) or > 0 (the action for a child).
+// Return wxACC_OK even if there is no action. actionName is the action, or the empty
+// string if there is no action.
+// The retrieved string describes the action that is performed on an object,
+// not what the object does as a result. For example, a toolbar button that prints
+// a document has a default action of "Press" rather than "Prints the current document."
+wxAccStatus wxWindowAccessible::GetDefaultAction(int childId, wxString* actionName)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Returns the description for this object or a child.
+wxAccStatus wxWindowAccessible::GetDescription(int childId, wxString* description)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    wxString ht(GetWindow()->GetHelpText());
+    if (!ht.IsEmpty())
+    {
+        *description = ht;
+        return wxACC_OK;
+    }
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Returns help text for this object or a child, similar to tooltip text.
+wxAccStatus wxWindowAccessible::GetHelpText(int childId, wxString* helpText)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    wxString ht(GetWindow()->GetHelpText());
+    if (!ht.IsEmpty())
+    {
+        *helpText = ht;
+        return wxACC_OK;
+    }
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Returns the keyboard shortcut for this object or child.
+// Return e.g. ALT+K
+wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int childId, wxString* shortcut)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Returns a role constant.
+wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    // If a child, leave wxWindows to call the function on the actual
+    // child object.
+    if (childId > 0)
+        return wxACC_NOT_IMPLEMENTED;
+
+    if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
+        return wxACC_NOT_IMPLEMENTED;
+#if wxUSE_STATUSBAR
+    if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
+        return wxACC_NOT_IMPLEMENTED;
+#endif
+#if wxUSE_TOOLBAR
+    if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
+        return wxACC_NOT_IMPLEMENTED;
+#endif
+
+    //*role = wxROLE_SYSTEM_CLIENT;
+    *role = wxROLE_SYSTEM_CLIENT;
+    return wxACC_OK;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Returns a state constant.
+wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    // If a child, leave wxWindows to call the function on the actual
+    // child object.
+    if (childId > 0)
+        return wxACC_NOT_IMPLEMENTED;
+
+    if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
+        return wxACC_NOT_IMPLEMENTED;
+
+#if wxUSE_STATUSBAR
+    if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
+        return wxACC_NOT_IMPLEMENTED;
+#endif
+#if wxUSE_TOOLBAR
+    if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
+        return wxACC_NOT_IMPLEMENTED;
+#endif
+
+    *state = 0;
+    return wxACC_OK;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Returns a localized string representing the value for the object
+// or child.
+wxAccStatus wxWindowAccessible::GetValue(int childId, wxString* strValue)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Selects the object or child.
+wxAccStatus wxWindowAccessible::Select(int childId, wxAccSelectionFlags selectFlags)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Gets the window with the keyboard focus.
+// If childId is 0 and child is NULL, no object in
+// this subhierarchy has the focus.
+// If this object has the focus, child should be 'this'.
+wxAccStatus wxWindowAccessible::GetFocus(int* childId, wxAccessible** child)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+// Gets a variant representing the selected children
+// of this object.
+// Acceptable values:
+// - a null variant (IsNull() returns TRUE)
+// - a list variant (GetType() == wxT("list")
+// - an integer representing the selected child element,
+//   or 0 if this object is selected (GetType() == wxT("long")
+// - a "void*" pointer to a wxAccessible child object
+wxAccStatus wxWindowAccessible::GetSelections(wxVariant* selections)
+{
+    wxASSERT( GetWindow() != NULL );
+    if (!GetWindow())
+        return wxACC_FAIL;
+
+    return wxACC_NOT_IMPLEMENTED;
+}
+
+#endif // wxUSE_ACCESSIBILITY