Forgot header with OSX prefix

[wxWidgets.git] / src / common / wincmn.cpp

diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index 9b95e33b7b5326fb7b1a738701ece75ac17289dd..878bca5ae8c6abd5e3059f3c15b5d9bba23af67d 100644 (file)
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -44,6 +44,7 @@
     #include "wx/scrolbar.h"
     #include "wx/layout.h"
     #include "wx/sizer.h"
     #include "wx/scrolbar.h"
     #include "wx/layout.h"
     #include "wx/sizer.h"

+    #include "wx/menu.h"

 #endif //WX_PRECOMP
 
 #if wxUSE_DRAG_AND_DROP
 #endif //WX_PRECOMP
 
 #if wxUSE_DRAG_AND_DROP


@@ -85,6 +86,11 @@
 // Windows List
 WXDLLIMPEXP_DATA_CORE(wxWindowList) wxTopLevelWindows;
 
 // Windows List
 WXDLLIMPEXP_DATA_CORE(wxWindowList) wxTopLevelWindows;
 

+// globals
+#if wxUSE_MENUS
+wxMenu *wxCurrentPopupMenu = NULL;
+#endif // wxUSE_MENUS
+

 // ----------------------------------------------------------------------------
 // static data
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // static data
 // ----------------------------------------------------------------------------


@@ -119,7 +125,7 @@ END_EVENT_TABLE()
 wxWindowBase::wxWindowBase()
 {
     // no window yet, no parent nor children
 wxWindowBase::wxWindowBase()
 {
     // no window yet, no parent nor children

-    m_parent = (wxWindow *)NULL;
+    m_parent = NULL;

     m_windowId = wxID_ANY;
 
     // no constraints on the minimal window size
     m_windowId = wxID_ANY;
 
     // no constraints on the minimal window size


@@ -140,7 +146,7 @@ wxWindowBase::wxWindowBase()
 
 #if wxUSE_VALIDATORS
     // no validator
 
 #if wxUSE_VALIDATORS
     // no validator

-    m_windowValidator = (wxValidator *) NULL;
+    m_windowValidator = NULL;

 #endif // wxUSE_VALIDATORS
 
     // the colours/fonts are default for now, so leave m_font,
 #endif // wxUSE_VALIDATORS
 
     // the colours/fonts are default for now, so leave m_font,


@@ -160,25 +166,24 @@ wxWindowBase::wxWindowBase()
 
 #if wxUSE_CONSTRAINTS
     // no constraints whatsoever
 
 #if wxUSE_CONSTRAINTS
     // no constraints whatsoever

-    m_constraints = (wxLayoutConstraints *) NULL;
-    m_constraintsInvolvedIn = (wxWindowList *) NULL;
+    m_constraints = NULL;
+    m_constraintsInvolvedIn = NULL;

 #endif // wxUSE_CONSTRAINTS
 
 #endif // wxUSE_CONSTRAINTS
 

-    m_windowSizer = (wxSizer *) NULL;
-    m_containingSizer = (wxSizer *) NULL;
+    m_windowSizer = NULL;
+    m_containingSizer = NULL;

     m_autoLayout = false;
     m_autoLayout = false;

-    m_freeId = false;

 
 #if wxUSE_DRAG_AND_DROP
 
 #if wxUSE_DRAG_AND_DROP

-    m_dropTarget = (wxDropTarget *)NULL;
+    m_dropTarget = NULL;

 #endif // wxUSE_DRAG_AND_DROP
 
 #if wxUSE_TOOLTIPS
 #endif // wxUSE_DRAG_AND_DROP
 
 #if wxUSE_TOOLTIPS

-    m_tooltip = (wxToolTip *)NULL;
+    m_tooltip = NULL;

 #endif // wxUSE_TOOLTIPS
 
 #if wxUSE_CARET
 #endif // wxUSE_TOOLTIPS
 
 #if wxUSE_CARET

-    m_caret = (wxCaret *)NULL;
+    m_caret = NULL;

 #endif // wxUSE_CARET
 
 #if wxUSE_PALETTE
 #endif // wxUSE_CARET
 
 #if wxUSE_PALETTE


@@ -191,12 +196,7 @@ wxWindowBase::wxWindowBase()
 
     m_virtualSize = wxDefaultSize;
 
 
     m_virtualSize = wxDefaultSize;
 

-    m_scrollHelper = (wxScrollHelper *) NULL;
-
-    m_minVirtualWidth =
-    m_maxVirtualWidth = wxDefaultCoord;
-    m_minVirtualHeight =
-    m_maxVirtualHeight = wxDefaultCoord;
+    m_scrollHelper = NULL;

 
     m_windowVariant = wxWINDOW_VARIANT_NORMAL;
 #if wxUSE_SYSTEM_OPTIONS
 
     m_windowVariant = wxWINDOW_VARIANT_NORMAL;
 #if wxUSE_SYSTEM_OPTIONS


@@ -209,8 +209,12 @@ wxWindowBase::wxWindowBase()
     // Whether we're using the current theme for this window (wxGTK only for now)
     m_themeEnabled = false;
 
     // Whether we're using the current theme for this window (wxGTK only for now)
     m_themeEnabled = false;
 

-    // VZ: this one shouldn't exist...
+    // This is set to true by SendDestroyEvent() which should be called by the
+    // most derived class to ensure that the destruction event is sent as soon
+    // as possible to allow its handlers to still see the undestroyed window

     m_isBeingDeleted = false;
     m_isBeingDeleted = false;

+
+    m_freezeCount = 0;

 }
 
 // common part of window creation process
 }
 
 // common part of window creation process


@@ -244,9 +248,6 @@ bool wxWindowBase::CreateBase(wxWindowBase *parent,
     if ( id == wxID_ANY )
     {
         m_windowId = NewControlId();
     if ( id == wxID_ANY )
     {
         m_windowId = NewControlId();

-
-        // remember to call ReleaseControlId() when this window is destroyed
-        m_freeId = true;

     }
     else // valid id specified
     {
     }
     else // valid id specified
     {


@@ -307,10 +308,6 @@ wxWindowBase::~wxWindowBase()
 {
     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 
 {
     wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") );
 

-    // mark the id as unused if we allocated it for this control
-    if ( m_freeId )
-        ReleaseControlId(m_windowId);
-

     // FIXME if these 2 cases result from programming errors in the user code
     //       we should probably assert here instead of silently fixing them
 
     // FIXME if these 2 cases result from programming errors in the user code
     //       we should probably assert here instead of silently fixing them
 


@@ -322,6 +319,13 @@ wxWindowBase::~wxWindowBase()
     // we weren't a dialog class
     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 
     // we weren't a dialog class
     wxTopLevelWindows.DeleteObject((wxWindow*)this);
 

+#if wxUSE_MENUS
+    // The associated popup menu can still be alive, disassociate from it in
+    // this case
+    if ( wxCurrentPopupMenu && wxCurrentPopupMenu->GetInvokingWindow() == this )
+        wxCurrentPopupMenu->SetInvokingWindow(NULL);
+#endif // wxUSE_MENUS
+

     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 
     // notify the parent about this window destruction
     wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") );
 
     // notify the parent about this window destruction


@@ -367,10 +371,34 @@ wxWindowBase::~wxWindowBase()
 #if wxUSE_ACCESSIBILITY
     delete m_accessible;
 #endif
 #if wxUSE_ACCESSIBILITY
     delete m_accessible;
 #endif

+
+#if wxUSE_HELP
+    // NB: this has to be called unconditionally, because we don't know
+    //     whether this window has associated help text or not
+    wxHelpProvider *helpProvider = wxHelpProvider::Get();
+    if ( helpProvider )
+        helpProvider->RemoveHelp(this);
+#endif
+}
+
+bool wxWindowBase::IsBeingDeleted() const
+{
+    return m_isBeingDeleted ||
+            (!IsTopLevel() && m_parent && m_parent->IsBeingDeleted());

 }
 
 void wxWindowBase::SendDestroyEvent()
 {
 }
 
 void wxWindowBase::SendDestroyEvent()
 {

+    if ( m_isBeingDeleted )
+    {
+        // we could have been already called from a more derived class dtor,
+        // e.g. ~wxTLW calls us and so does ~wxWindow and the latter call
+        // should be simply ignored
+        return;
+    }
+
+    m_isBeingDeleted = true;
+

     wxWindowDestroyEvent event;
     event.SetEventObject(this);
     event.SetId(GetId());
     wxWindowDestroyEvent event;
     event.SetEventObject(this);
     event.SetId(GetId());


@@ -379,6 +407,8 @@ void wxWindowBase::SendDestroyEvent()
 
 bool wxWindowBase::Destroy()
 {
 
 bool wxWindowBase::Destroy()
 {

+    SendDestroyEvent();
+

     delete this;
 
     return true;
     delete this;
 
     return true;


@@ -392,7 +422,7 @@ bool wxWindowBase::Close(bool force)
 
     // return false if window wasn't closed because the application vetoed the
     // close event
 
     // return false if window wasn't closed because the application vetoed the
     // close event

-    return GetEventHandler()->ProcessEvent(event) && !event.GetVeto();
+    return HandleWindowEvent(event) && !event.GetVeto();

 }
 
 bool wxWindowBase::DestroyChildren()
 }
 
 bool wxWindowBase::DestroyChildren()


@@ -407,11 +437,11 @@ bool wxWindowBase::DestroyChildren()
 
         wxWindow *child = node->GetData();
 
 
         wxWindow *child = node->GetData();
 

-        // note that we really want to call delete and not ->Destroy() here
-        // because we want to delete the child immediately, before we are
-        // deleted, and delayed deletion would result in problems as our (top
-        // level) child could outlive its parent
-        delete child;
+        // note that we really want to delete it immediately so don't call the
+        // possible overridden Destroy() version which might not delete the
+        // child immediately resulting in problems with our (top level) child
+        // outliving its parent
+        child->wxWindowBase::Destroy();

 
         wxASSERT_MSG( !GetChildren().Find(child),
                       wxT("child didn't remove itself using RemoveChild()") );
 
         wxASSERT_MSG( !GetChildren().Find(child),
                       wxT("child didn't remove itself using RemoveChild()") );


@@ -608,9 +638,10 @@ wxSize wxWindowBase::DoGetBestSize() const
 // helper of GetWindowBorderSize(): as many ports don't implement support for
 // wxSYS_BORDER/EDGE_X/Y metrics in their wxSystemSettings, use hard coded
 // fallbacks in this case
 // helper of GetWindowBorderSize(): as many ports don't implement support for
 // wxSYS_BORDER/EDGE_X/Y metrics in their wxSystemSettings, use hard coded
 // fallbacks in this case

-static int wxGetMetricOrDefault(wxSystemMetric what)
+static int wxGetMetricOrDefault(wxSystemMetric what, const wxWindowBase* win)

 {
 {

-    int rc = wxSystemSettings::GetMetric(what);
+    int rc = wxSystemSettings::GetMetric(
+        what, static_cast<wxWindow*>(const_cast<wxWindowBase*>(win)));

     if ( rc == -1 )
     {
         switch ( what )
     if ( rc == -1 )
     {
         switch ( what )


@@ -648,23 +679,23 @@ wxSize wxWindowBase::GetWindowBorderSize() const
 
         case wxBORDER_SIMPLE:
         case wxBORDER_STATIC:
 
         case wxBORDER_SIMPLE:
         case wxBORDER_STATIC:

-            size.x = wxGetMetricOrDefault(wxSYS_BORDER_X);
-            size.y = wxGetMetricOrDefault(wxSYS_BORDER_Y);
+            size.x = wxGetMetricOrDefault(wxSYS_BORDER_X, this);
+            size.y = wxGetMetricOrDefault(wxSYS_BORDER_Y, this);

             break;
 
         case wxBORDER_SUNKEN:
         case wxBORDER_RAISED:
             break;
 
         case wxBORDER_SUNKEN:
         case wxBORDER_RAISED:

-            size.x = wxMax(wxGetMetricOrDefault(wxSYS_EDGE_X),
-                           wxGetMetricOrDefault(wxSYS_BORDER_X));
-            size.y = wxMax(wxGetMetricOrDefault(wxSYS_EDGE_Y),
-                           wxGetMetricOrDefault(wxSYS_BORDER_Y));
+            size.x = wxMax(wxGetMetricOrDefault(wxSYS_EDGE_X, this),
+                           wxGetMetricOrDefault(wxSYS_BORDER_X, this));
+            size.y = wxMax(wxGetMetricOrDefault(wxSYS_EDGE_Y, this),
+                           wxGetMetricOrDefault(wxSYS_BORDER_Y, this));

             break;
 
         case wxBORDER_DOUBLE:
             break;
 
         case wxBORDER_DOUBLE:

-            size.x = wxGetMetricOrDefault(wxSYS_EDGE_X) +
-                        wxGetMetricOrDefault(wxSYS_BORDER_X);
-            size.y = wxGetMetricOrDefault(wxSYS_EDGE_Y) +
-                        wxGetMetricOrDefault(wxSYS_BORDER_Y);
+            size.x = wxGetMetricOrDefault(wxSYS_EDGE_X, this) +
+                        wxGetMetricOrDefault(wxSYS_BORDER_X, this);
+            size.y = wxGetMetricOrDefault(wxSYS_EDGE_Y, this) +
+                        wxGetMetricOrDefault(wxSYS_BORDER_Y, this);

             break;
 
         default:
             break;
 
         default:


@@ -711,6 +742,22 @@ wxPoint wxWindowBase::GetClientAreaOrigin() const
     return wxPoint(0,0);
 }
 
     return wxPoint(0,0);
 }
 

+wxSize wxWindowBase::ClientToWindowSize(const wxSize& size) const
+{
+    const wxSize diff(GetSize() - GetClientSize());
+
+    return wxSize(size.x == -1 ? -1 : size.x + diff.x,
+                  size.y == -1 ? -1 : size.y + diff.y);
+}
+
+wxSize wxWindowBase::WindowToClientSize(const wxSize& size) const
+{
+    const wxSize diff(GetSize() - GetClientSize());
+
+    return wxSize(size.x == -1 ? -1 : size.x - diff.x,
+                  size.y == -1 ? -1 : size.y - diff.y);
+}
+

 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 {
     if ( m_windowVariant != variant )
 void wxWindowBase::SetWindowVariant( wxWindowVariant variant )
 {
     if ( m_windowVariant != variant )


@@ -771,26 +818,20 @@ void wxWindowBase::DoSetSizeHints( int minW, int minH,
 }
 
 
 }
 
 

-void wxWindowBase::SetVirtualSizeHints( int minW, int minH,
-                                        int maxW, int maxH )
+#if WXWIN_COMPATIBILITY_2_8
+void wxWindowBase::SetVirtualSizeHints(int WXUNUSED(minW), int WXUNUSED(minH),
+                                       int WXUNUSED(maxW), int WXUNUSED(maxH))

 {
 {

-    m_minVirtualWidth = minW;
-    m_maxVirtualWidth = maxW;
-    m_minVirtualHeight = minH;
-    m_maxVirtualHeight = maxH;

 }
 
 }
 

-void wxWindowBase::DoSetVirtualSize( int x, int y )
+void wxWindowBase::SetVirtualSizeHints(const wxSize& WXUNUSED(minsize),
+                                       const wxSize& WXUNUSED(maxsize))

 {
 {

-    if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x )
-        x = m_minVirtualWidth;
-    if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x )
-        x = m_maxVirtualWidth;
-    if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y )
-        y = m_minVirtualHeight;
-    if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y )
-        y = m_maxVirtualHeight;
+}
+#endif // WXWIN_COMPATIBILITY_2_8

 
 

+void wxWindowBase::DoSetVirtualSize( int x, int y )
+{

     m_virtualSize = wxSize(x, y);
 }
 
     m_virtualSize = wxSize(x, y);
 }
 


@@ -821,6 +862,23 @@ void wxWindowBase::DoGetScreenPosition(int *x, int *y) const
     ClientToScreen(x, y);
 }
 
     ClientToScreen(x, y);
 }
 

+void wxWindowBase::SendSizeEvent(int flags)
+{
+    wxSizeEvent event(GetSize(), GetId());
+    event.SetEventObject(this);
+    if ( flags & wxSEND_EVENT_POST )
+        wxPostEvent(this, event);
+    else
+        HandleWindowEvent(event);
+}
+
+void wxWindowBase::SendSizeEventToParent(int flags)
+{
+    wxWindow * const parent = GetParent();
+    if ( parent && !parent->IsBeingDeleted() )
+        parent->SendSizeEvent(flags);
+}
+

 // ----------------------------------------------------------------------------
 // show/hide/enable/disable the window
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // show/hide/enable/disable the window
 // ----------------------------------------------------------------------------


@@ -892,8 +950,11 @@ bool wxWindowBase::Enable(bool enable)
 
 bool wxWindowBase::IsShownOnScreen() const
 {
 
 bool wxWindowBase::IsShownOnScreen() const
 {

+    // A window is shown on screen if it itself is shown and so are all its
+    // parents. But if a window is toplevel one, then its always visible on
+    // screen if IsShown() returns true, even if it has a hidden parent.

     return IsShown() &&
     return IsShown() &&

-           (GetParent() == NULL || GetParent()->IsShownOnScreen());
+           (IsTopLevel() || GetParent() == NULL || GetParent()->IsShownOnScreen());

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -905,6 +966,52 @@ bool wxWindowBase::IsTopLevel() const
     return false;
 }
 
     return false;
 }
 

+// ----------------------------------------------------------------------------
+// Freeze/Thaw
+// ----------------------------------------------------------------------------
+
+void wxWindowBase::Freeze()
+{
+    if ( !m_freezeCount++ )
+    {
+        // physically freeze this window:
+        DoFreeze();
+
+        // and recursively freeze all children:
+        for ( wxWindowList::iterator i = GetChildren().begin();
+              i != GetChildren().end(); ++i )
+        {
+            wxWindow *child = *i;
+            if ( child->IsTopLevel() )
+                continue;
+
+            child->Freeze();
+        }
+    }
+}
+
+void wxWindowBase::Thaw()
+{
+    wxASSERT_MSG( m_freezeCount, "Thaw() without matching Freeze()" );
+
+    if ( !--m_freezeCount )
+    {
+        // recursively thaw all children:
+        for ( wxWindowList::iterator i = GetChildren().begin();
+              i != GetChildren().end(); ++i )
+        {
+            wxWindow *child = *i;
+            if ( child->IsTopLevel() )
+                continue;
+
+            child->Thaw();
+        }
+
+        // physically thaw this window:
+        DoThaw();
+    }
+}
+

 // ----------------------------------------------------------------------------
 // reparenting the window
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // reparenting the window
 // ----------------------------------------------------------------------------


@@ -920,12 +1027,25 @@ void wxWindowBase::AddChild(wxWindowBase *child)
 
     GetChildren().Append((wxWindow*)child);
     child->SetParent(this);
 
     GetChildren().Append((wxWindow*)child);
     child->SetParent(this);

+
+    // adding a child while frozen will assert when thawed, so freeze it as if
+    // it had been already present when we were frozen
+    if ( IsFrozen() && !child->IsTopLevel() )
+        child->Freeze();

 }
 
 void wxWindowBase::RemoveChild(wxWindowBase *child)
 {
     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 
 }
 
 void wxWindowBase::RemoveChild(wxWindowBase *child)
 {
     wxCHECK_RET( child, wxT("can't remove a NULL child") );
 

+    // removing a child while frozen may result in permanently frozen window
+    // if used e.g. from Reparent(), so thaw it
+    //
+    // NB: IsTopLevel() doesn't return true any more when a TLW child is being
+    //     removed from its ~wxWindowBase, so check for IsBeingDeleted() too
+    if ( IsFrozen() && !child->IsBeingDeleted() && !child->IsTopLevel() )
+        child->Thaw();
+

     GetChildren().DeleteObject((wxWindow *)child);
     child->SetParent(NULL);
 }
     GetChildren().DeleteObject((wxWindow *)child);
     child->SetParent(NULL);
 }


@@ -976,73 +1096,121 @@ bool wxWindowBase::Reparent(wxWindowBase *newParent)
 // event handler stuff
 // ----------------------------------------------------------------------------
 
 // event handler stuff
 // ----------------------------------------------------------------------------
 

-void wxWindowBase::PushEventHandler(wxEvtHandler *handler)
+void wxWindowBase::SetEventHandler(wxEvtHandler *handler)

 {
 {

+    wxCHECK_RET(handler != NULL, "SetEventHandler(NULL) called");
+
+    m_eventHandler = handler;
+}
+
+void wxWindowBase::SetNextHandler(wxEvtHandler *WXUNUSED(handler))
+{
+    // disable wxEvtHandler chain mechanism for wxWindows:
+    // wxWindow uses its own stack mechanism which doesn't mix well with wxEvtHandler's one
+
+    wxFAIL_MSG("wxWindow cannot be part of a wxEvtHandler chain");
+}
+void wxWindowBase::SetPreviousHandler(wxEvtHandler *WXUNUSED(handler))
+{
+    // we can't simply wxFAIL here as in SetNextHandler: in fact the last
+    // handler of our stack when is destroyed will be Unlink()ed and thus
+    // will call this function to update the pointer of this window...
+
+    //wxFAIL_MSG("wxWindow cannot be part of a wxEvtHandler chain");
+}
+
+void wxWindowBase::PushEventHandler(wxEvtHandler *handlerToPush)
+{
+    wxCHECK_RET( handlerToPush != NULL, "PushEventHandler(NULL) called" );
+
+    // the new handler is going to be part of the wxWindow stack of event handlers:
+    // it can't be part also of an event handler double-linked chain:
+    wxASSERT_MSG(handlerToPush->IsUnlinked(),
+        "The handler being pushed in the wxWindow stack shouldn't be part of "
+        "a wxEvtHandler chain; call Unlink() on it first");
+

     wxEvtHandler *handlerOld = GetEventHandler();
     wxEvtHandler *handlerOld = GetEventHandler();

+    wxCHECK_RET( handlerOld, "an old event handler is NULL?" );
+
+    // now use wxEvtHandler double-linked list to implement a stack:
+    handlerToPush->SetNextHandler(handlerOld);

 
 

-    handler->SetNextHandler(handlerOld);
+    if (handlerOld != this)
+        handlerOld->SetPreviousHandler(handlerToPush);

 
 

-    if ( handlerOld )
-        GetEventHandler()->SetPreviousHandler(handler);
+    SetEventHandler(handlerToPush);

 
 

-    SetEventHandler(handler);
+#ifdef __WXDEBUG__
+    // final checks of the operations done above:
+    wxASSERT_MSG( handlerToPush->GetPreviousHandler() == NULL,
+        "the first handler of the wxWindow stack should have no previous handlers set" );
+    wxASSERT_MSG( handlerToPush->GetNextHandler() != NULL,
+        "the first handler of the wxWindow stack should have non-NULL next handler" );
+
+    wxEvtHandler* pLast = handlerToPush;
+    while (pLast && pLast != this)
+        pLast = pLast->GetNextHandler();
+    wxASSERT_MSG( pLast->GetNextHandler() == NULL,
+        "the last handler of the wxWindow stack should have this window as next handler" );
+#endif

 }
 
 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 {
 }
 
 wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
 {

-    wxEvtHandler *handlerA = GetEventHandler();
-    if ( handlerA )
-    {
-        wxEvtHandler *handlerB = handlerA->GetNextHandler();
-        handlerA->SetNextHandler((wxEvtHandler *)NULL);
+    // we need to pop the wxWindow stack, i.e. we need to remove the first handler

 
 

-        if ( handlerB )
-            handlerB->SetPreviousHandler((wxEvtHandler *)NULL);
-        SetEventHandler(handlerB);
+    wxEvtHandler *firstHandler = GetEventHandler();
+    wxCHECK_MSG( firstHandler != NULL, NULL, "wxWindow cannot have a NULL event handler" );
+    wxCHECK_MSG( firstHandler != this, NULL, "cannot pop the wxWindow itself" );
+    wxCHECK_MSG( firstHandler->GetPreviousHandler() == NULL, NULL,
+        "the first handler of the wxWindow stack should have no previous handlers set" );

 
 

-        if ( deleteHandler )
-        {
-            delete handlerA;
-            handlerA = (wxEvtHandler *)NULL;
-        }
+    wxEvtHandler *secondHandler = firstHandler->GetNextHandler();
+    wxCHECK_MSG( secondHandler != NULL, NULL,
+        "the first handler of the wxWindow stack should have non-NULL next handler" );
+
+    firstHandler->SetNextHandler(NULL);
+    secondHandler->SetPreviousHandler(NULL);
+
+    // now firstHandler is completely unlinked; set secondHandler as the new window event handler
+    SetEventHandler(secondHandler);
+
+    if ( deleteHandler )
+    {
+        delete firstHandler;
+        firstHandler = NULL;

     }
 
     }
 

-    return handlerA;
+    return firstHandler;

 }
 
 }
 

-bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
+bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handlerToRemove)

 {
 {

-    wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") );
+    wxCHECK_MSG( handlerToRemove != NULL, false, "RemoveEventHandler(NULL) called" );
+    wxCHECK_MSG( handlerToRemove != this, false, "Cannot remove the window itself" );

 
 

-    wxEvtHandler *handlerPrev = NULL,
-                 *handlerCur = GetEventHandler();
-    while ( handlerCur )
+    if (handlerToRemove == GetEventHandler())
+    {
+        // removing the first event handler is equivalent to "popping" the stack
+        PopEventHandler(false);
+        return true;
+    }
+
+    // NOTE: the wxWindow event handler list is always terminated with "this" handler
+    wxEvtHandler *handlerCur = GetEventHandler()->GetNextHandler();
+    while ( handlerCur != this )

     {
         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 
     {
         wxEvtHandler *handlerNext = handlerCur->GetNextHandler();
 

-        if ( handlerCur == handler )
+        if ( handlerCur == handlerToRemove )

         {
         {

-            if ( handlerPrev )
-            {
-                handlerPrev->SetNextHandler(handlerNext);
-            }
-            else
-            {
-                SetEventHandler(handlerNext);
-            }
-
-            if ( handlerNext )
-            {
-                handlerNext->SetPreviousHandler ( handlerPrev );
-            }
-
-            handler->SetNextHandler(NULL);
-            handler->SetPreviousHandler(NULL);
+            handlerCur->Unlink();

 
 

+            wxASSERT_MSG( handlerCur != GetEventHandler(),
+                        "the case Remove == Pop should was already handled" );

             return true;
         }
 
             return true;
         }
 

-        handlerPrev = handlerCur;

         handlerCur = handlerNext;
     }
 
         handlerCur = handlerNext;
     }
 


@@ -1051,6 +1219,12 @@ bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler)
     return false;
 }
 
     return false;
 }
 

+bool wxWindowBase::HandleWindowEvent(wxEvent& event) const
+{
+    // SafelyProcessEvent() will handle exceptions nicely
+    return GetEventHandler()->SafelyProcessEvent(event);
+}
+

 // ----------------------------------------------------------------------------
 // colours, fonts &c
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // colours, fonts &c
 // ----------------------------------------------------------------------------


@@ -1111,7 +1285,7 @@ wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 
 wxColour wxWindowBase::GetBackgroundColour() const
 {
 
 wxColour wxWindowBase::GetBackgroundColour() const
 {

-    if ( !m_backgroundColour.Ok() )
+    if ( !m_backgroundColour.IsOk() )

     {
         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
 
     {
         wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") );
 


@@ -1139,7 +1313,7 @@ wxColour wxWindowBase::GetForegroundColour() const
     {
         wxColour colFg = GetDefaultAttributes().colFg;
 
     {
         wxColour colFg = GetDefaultAttributes().colFg;
 

-        if ( !colFg.Ok() )
+        if ( !colFg.IsOk() )

             colFg = GetClassDefaultAttributes().colFg;
 
         return colFg;
             colFg = GetClassDefaultAttributes().colFg;
 
         return colFg;


@@ -1153,7 +1327,7 @@ bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
     if ( colour == m_backgroundColour )
         return false;
 
     if ( colour == m_backgroundColour )
         return false;
 

-    m_hasBgCol = colour.Ok();
+    m_hasBgCol = colour.IsOk();

     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
 
     if ( m_backgroundStyle != wxBG_STYLE_CUSTOM )
         m_backgroundStyle = m_hasBgCol ? wxBG_STYLE_COLOUR : wxBG_STYLE_SYSTEM;
 


@@ -1168,7 +1342,7 @@ bool wxWindowBase::SetForegroundColour( const wxColour &colour )
     if (colour == m_foregroundColour )
         return false;
 
     if (colour == m_foregroundColour )
         return false;
 

-    m_hasFgCol = colour.Ok();
+    m_hasFgCol = colour.IsOk();

     m_inheritFgCol = m_hasFgCol;
     m_foregroundColour = colour;
     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
     m_inheritFgCol = m_hasFgCol;
     m_foregroundColour = colour;
     SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );


@@ -1193,12 +1367,12 @@ bool wxWindowBase::SetCursor(const wxCursor& cursor)
 wxFont wxWindowBase::GetFont() const
 {
     // logic is the same as in GetBackgroundColour()
 wxFont wxWindowBase::GetFont() const
 {
     // logic is the same as in GetBackgroundColour()

-    if ( !m_font.Ok() )
+    if ( !m_font.IsOk() )

     {
         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
 
         wxFont font = GetDefaultAttributes().font;
     {
         wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") );
 
         wxFont font = GetDefaultAttributes().font;

-        if ( !font.Ok() )
+        if ( !font.IsOk() )

             font = GetClassDefaultAttributes().font;
 
         return font;
             font = GetClassDefaultAttributes().font;
 
         return font;


@@ -1216,7 +1390,7 @@ bool wxWindowBase::SetFont(const wxFont& font)
     }
 
     m_font = font;
     }
 
     m_font = font;

-    m_hasFont = font.Ok();
+    m_hasFont = font.IsOk();

     m_inheritFont = m_hasFont;
 
     InvalidateBestSize();
     m_inheritFont = m_hasFont;
 
     InvalidateBestSize();


@@ -1315,7 +1489,7 @@ void wxWindowBase::ClearBackground()
     // wxGTK uses its own version, no need to add never used code
 #ifndef __WXGTK__
     wxClientDC dc((wxWindow *)this);
     // wxGTK uses its own version, no need to add never used code
 #ifndef __WXGTK__
     wxClientDC dc((wxWindow *)this);

-    wxBrush brush(GetBackgroundColour(), wxSOLID);
+    wxBrush brush(GetBackgroundColour(), wxBRUSHSTYLE_SOLID);

     dc.SetBackground(brush);
     dc.Clear();
 #endif // __WXGTK__
     dc.SetBackground(brush);
     dc.Clear();
 #endif // __WXGTK__


@@ -1330,7 +1504,7 @@ wxWindow *wxWindowBase::FindWindow(long id) const
     if ( id == m_windowId )
         return (wxWindow *)this;
 
     if ( id == m_windowId )
         return (wxWindow *)this;
 

-    wxWindowBase *res = (wxWindow *)NULL;
+    wxWindowBase *res = NULL;

     wxWindowList::compatibility_iterator node;
     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
     {
     wxWindowList::compatibility_iterator node;
     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
     {


@@ -1346,7 +1520,7 @@ wxWindow *wxWindowBase::FindWindow(const wxString& name) const
     if ( name == m_windowName )
         return (wxWindow *)this;
 
     if ( name == m_windowName )
         return (wxWindow *)this;
 

-    wxWindowBase *res = (wxWindow *)NULL;
+    wxWindowBase *res = NULL;

     wxWindowList::compatibility_iterator node;
     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
     {
     wxWindowList::compatibility_iterator node;
     for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() )
     {


@@ -1611,6 +1785,7 @@ void wxWindowBase::SetHelpText(const wxString& text)
     }
 }
 
     }
 }
 

+#if WXWIN_COMPATIBILITY_2_8

 // associate this help text with all windows with the same id as this
 // one
 void wxWindowBase::SetHelpTextForId(const wxString& text)
 // associate this help text with all windows with the same id as this
 // one
 void wxWindowBase::SetHelpTextForId(const wxString& text)


@@ -1621,6 +1796,7 @@ void wxWindowBase::SetHelpTextForId(const wxString& text)
         helpProvider->AddHelp(GetId(), text);
     }
 }
         helpProvider->AddHelp(GetId(), text);
     }
 }

+#endif // WXWIN_COMPATIBILITY_2_8

 
 // get the help string associated with this window (may be empty)
 // default implementation forwards calls to the help provider
 
 // get the help string associated with this window (may be empty)
 // default implementation forwards calls to the help provider


@@ -1644,7 +1820,29 @@ void wxWindowBase::OnHelp(wxHelpEvent& event)
     wxHelpProvider *helpProvider = wxHelpProvider::Get();
     if ( helpProvider )
     {
     wxHelpProvider *helpProvider = wxHelpProvider::Get();
     if ( helpProvider )
     {

-        if ( helpProvider->ShowHelpAtPoint(this, event.GetPosition(), event.GetOrigin()) )
+        wxPoint pos = event.GetPosition();
+        const wxHelpEvent::Origin origin = event.GetOrigin();
+        if ( origin == wxHelpEvent::Origin_Keyboard )
+        {
+            // if the help event was generated from keyboard it shouldn't
+            // appear at the mouse position (which is still the only position
+            // associated with help event) if the mouse is far away, although
+            // we still do use the mouse position if it's over the window
+            // because we suppose the user looks approximately at the mouse
+            // already and so it would be more convenient than showing tooltip
+            // at some arbitrary position which can be quite far from it
+            const wxRect rectClient = GetClientRect();
+            if ( !rectClient.Contains(ScreenToClient(pos)) )
+            {
+                // position help slightly under and to the right of this window
+                pos = ClientToScreen(wxPoint(
+                        2*GetCharWidth(),
+                        rectClient.height + GetCharHeight()
+                      ));
+            }
+        }
+
+        if ( helpProvider->ShowHelpAtPoint(this, pos, origin) )

         {
             // skip the event.Skip() below
             return;
         {
             // skip the event.Skip() below
             return;


@@ -1675,7 +1873,7 @@ void wxWindowBase::SetToolTip( const wxString &tip )
     }
 
     // setting empty tooltip text does not remove the tooltip any more - use
     }
 
     // setting empty tooltip text does not remove the tooltip any more - use

-    // SetToolTip((wxToolTip *)NULL) for this
+    // SetToolTip(NULL) for this

 }
 
 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
 }
 
 void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)


@@ -1799,7 +1997,7 @@ void wxWindowBase::DeleteRelatedConstraints()
         }
 
         delete m_constraintsInvolvedIn;
         }
 
         delete m_constraintsInvolvedIn;

-        m_constraintsInvolvedIn = (wxWindowList *) NULL;
+        m_constraintsInvolvedIn = NULL;

     }
 }
 
     }
 }
 


@@ -2248,6 +2446,17 @@ void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
 
 #if wxUSE_MENUS
 
 
 #if wxUSE_MENUS
 

+bool wxWindowBase::PopupMenu(wxMenu *menu, int x, int y)
+{
+    wxCHECK_MSG( menu, false, "can't popup NULL menu" );
+
+    wxCurrentPopupMenu = menu;
+    const bool rc = DoPopupMenu(menu, x, y);
+    wxCurrentPopupMenu = NULL;
+
+    return rc;
+}
+

 // this is used to pass the id of the selected item from the menu event handler
 // to the main function itself
 //
 // this is used to pass the id of the selected item from the menu event handler
 // to the main function itself
 //


@@ -2261,6 +2470,11 @@ void wxWindowBase::InternalOnPopupMenu(wxCommandEvent& event)
     gs_popupMenuSelection = event.GetId();
 }
 
     gs_popupMenuSelection = event.GetId();
 }
 

+void wxWindowBase::InternalOnPopupMenuUpdate(wxUpdateUIEvent& WXUNUSED(event))
+{
+    // nothing to do but do not skip it
+}
+

 int
 wxWindowBase::DoGetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y)
 {
 int
 wxWindowBase::DoGetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y)
 {


@@ -2271,8 +2485,24 @@ wxWindowBase::DoGetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y)
             NULL,
             this);
 
             NULL,
             this);
 

+    // it is common to construct the menu passed to this function dynamically
+    // using some fixed range of ids which could clash with the ids used
+    // elsewhere in the program, which could result in some menu items being
+    // unintentionally disabled or otherwise modified by update UI handlers
+    // elsewhere in the program code and this is difficult to avoid in the
+    // program itself, so instead we just temporarily suspend UI updating while
+    // this menu is shown
+    Connect(wxEVT_UPDATE_UI,
+            wxUpdateUIEventHandler(wxWindowBase::InternalOnPopupMenuUpdate),
+            NULL,
+            this);
+

     PopupMenu(&menu, x, y);
 
     PopupMenu(&menu, x, y);
 

+    Disconnect(wxEVT_UPDATE_UI,
+               wxUpdateUIEventHandler(wxWindowBase::InternalOnPopupMenuUpdate),
+               NULL,
+               this);

     Disconnect(wxEVT_COMMAND_MENU_SELECTED,
                wxCommandEventHandler(wxWindowBase::InternalOnPopupMenu),
                NULL,
     Disconnect(wxEVT_COMMAND_MENU_SELECTED,
                wxCommandEventHandler(wxWindowBase::InternalOnPopupMenu),
                NULL,


@@ -2292,7 +2522,7 @@ static void DrawBorder(wxWindowBase *win, const wxRect& rect, bool fill = false)
 {
     wxClientDC dc((wxWindow *)win);
     dc.SetPen(*wxRED_PEN);
 {
     wxClientDC dc((wxWindow *)win);
     dc.SetPen(*wxRED_PEN);

-    dc.SetBrush(fill ? wxBrush(*wxRED, wxCROSSDIAG_HATCH): *wxTRANSPARENT_BRUSH);
+    dc.SetBrush(fill ? wxBrush(*wxRED, wxBRUSHSTYLE_CROSSDIAG_HATCH) : *wxTRANSPARENT_BRUSH);

     dc.DrawRectangle(rect.Deflate(1, 1));
 }
 
     dc.DrawRectangle(rect.Deflate(1, 1));
 }
 


@@ -2471,7 +2701,7 @@ bool wxWindowBase::ms_winCaptureChanging = false;
 
 void wxWindowBase::CaptureMouse()
 {
 
 void wxWindowBase::CaptureMouse()
 {

-    wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), wx_static_cast(void*, this));
+    wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), static_cast<void*>(this));

 
     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive CaptureMouse call?") );
 
 
     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive CaptureMouse call?") );
 


@@ -2498,11 +2728,14 @@ void wxWindowBase::CaptureMouse()
 
 void wxWindowBase::ReleaseMouse()
 {
 
 void wxWindowBase::ReleaseMouse()
 {

-    wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), wx_static_cast(void*, this));
+    wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), static_cast<void*>(this));

 
     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive ReleaseMouse call?") );
 
 
     wxASSERT_MSG( !ms_winCaptureChanging, _T("recursive ReleaseMouse call?") );
 

-    wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") );
+    wxASSERT_MSG( GetCapture() == this,
+                  "attempt to release mouse, but this window hasn't captured it" );
+    wxASSERT_MSG( ms_winCaptureCurrent == this,
+                  "attempt to release mouse, but this window hasn't captured it" );

 
     ms_winCaptureChanging = true;
 
 
     ms_winCaptureChanging = true;
 


@@ -2524,7 +2757,7 @@ void wxWindowBase::ReleaseMouse()
 
     wxLogTrace(_T("mousecapture"),
         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),
 
     wxLogTrace(_T("mousecapture"),
         (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"),

-        wx_static_cast(void*, GetCapture()));
+        static_cast<void*>(GetCapture()));

 }
 
 static void DoNotifyWindowAboutCaptureLost(wxWindow *win)
 }
 
 static void DoNotifyWindowAboutCaptureLost(wxWindow *win)


@@ -2599,8 +2832,8 @@ bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event))
     // is receiving the event
     if ( event.GetEventObject() == this )
     {
     // is receiving the event
     if ( event.GetEventObject() == this )
     {

-        wxValidator *validator = GetValidator();
-        if ( validator && validator->ProcessEvent(event) )
+        wxValidator * const validator = GetValidator();
+        if ( validator && validator->ProcessEventHere(event) )

         {
             return true;
         }
         {
             return true;
         }


@@ -2669,12 +2902,33 @@ bool wxWindowBase::DoNavigateIn(int flags)
     return false;
 #else // !wxHAS_NATIVE_TAB_TRAVERSAL
     wxNavigationKeyEvent eventNav;
     return false;
 #else // !wxHAS_NATIVE_TAB_TRAVERSAL
     wxNavigationKeyEvent eventNav;

+    wxWindow *focused = FindFocus();
+    eventNav.SetCurrentFocus(focused);
+    eventNav.SetEventObject(focused);

     eventNav.SetFlags(flags);
     eventNav.SetFlags(flags);

-    eventNav.SetEventObject(FindFocus());

     return GetEventHandler()->ProcessEvent(eventNav);
 #endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL
 }
 
     return GetEventHandler()->ProcessEvent(eventNav);
 #endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL
 }
 

+bool wxWindowBase::HandleAsNavigationKey(const wxKeyEvent& event)
+{
+    if ( event.GetKeyCode() != WXK_TAB )
+        return false;
+
+    int flags = wxNavigationKeyEvent::FromTab;
+
+    if ( event.ShiftDown() )
+        flags |= wxNavigationKeyEvent::IsBackward;
+    else
+        flags |= wxNavigationKeyEvent::IsForward;
+
+    if ( event.ControlDown() )
+        flags |= wxNavigationKeyEvent::WinChange;
+
+    Navigate(flags);
+    return true;
+}
+

 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
 {
     // check that we're not a top level window
 void wxWindowBase::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
 {
     // check that we're not a top level window


@@ -2720,6 +2974,68 @@ void wxWindowBase::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
     return win ? win->GetMainWindowOfCompositeControl() : NULL;
 }
 
     return win ? win->GetMainWindowOfCompositeControl() : NULL;
 }
 

+bool wxWindowBase::HasFocus() const
+{
+    wxWindowBase *win = DoFindFocus();
+    return win == this ||
+           win == wxConstCast(this, wxWindowBase)->GetMainWindowOfCompositeControl();
+}
+
+// ----------------------------------------------------------------------------
+// drag and drop
+// ----------------------------------------------------------------------------
+
+#if wxUSE_DRAG_AND_DROP && !defined(__WXMSW__)
+
+namespace
+{
+
+class DragAcceptFilesTarget : public wxFileDropTarget
+{
+public:
+    DragAcceptFilesTarget(wxWindowBase *win) : m_win(win) {}
+
+    virtual bool OnDropFiles(wxCoord x, wxCoord y,
+                             const wxArrayString& filenames)
+    {
+        wxDropFilesEvent event(wxEVT_DROP_FILES,
+                               filenames.size(),
+                               wxCArrayString(filenames).Release());
+        event.SetEventObject(m_win);
+        event.m_pos.x = x;
+        event.m_pos.y = y;
+
+        return m_win->HandleWindowEvent(event);
+    }
+
+private:
+    wxWindowBase * const m_win;
+
+    DECLARE_NO_COPY_CLASS(DragAcceptFilesTarget)
+};
+
+
+} // anonymous namespace
+
+// Generic version of DragAcceptFiles(). It works by installing a simple
+// wxFileDropTarget-to-EVT_DROP_FILES adaptor and therefore cannot be used
+// together with explicit SetDropTarget() calls.
+void wxWindowBase::DragAcceptFiles(bool accept)
+{
+    if ( accept )
+    {
+        wxASSERT_MSG( !GetDropTarget(),
+                      "cannot use DragAcceptFiles() and SetDropTarget() together" );
+        SetDropTarget(new DragAcceptFilesTarget(this));
+    }
+    else
+    {
+        SetDropTarget(NULL);
+    }
+}
+
+#endif // wxUSE_DRAG_AND_DROP && !defined(__WXMSW__)
+

 // ----------------------------------------------------------------------------
 // global functions
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // global functions
 // ----------------------------------------------------------------------------


@@ -3174,125 +3490,4 @@ wxWindowBase::AdjustForLayoutDirection(wxCoord x,
     return x;
 }
 
     return x;
 }
 

-// ----------------------------------------------------------------------------
-// Window (and menu items) identifiers management
-// ----------------------------------------------------------------------------
-
-namespace
-{
-
-// this array contains, in packed form, the "in use" flags for the entire
-// auto-generated ids range: N-th element of the array contains the flags for
-// ids in [wxID_AUTO_LOWEST + 8*N, wxID_AUTO_LOWEST + 8*N + 7] range
-//
-// initially no ids are in use and we allocate them consecutively, but after we
-// exhaust the entire range, we wrap around and reuse the ids freed in the
-// meanwhile
-wxByte gs_autoIdsInUse[(wxID_AUTO_HIGHEST - wxID_AUTO_LOWEST + 1)/8 + 1] = { 0 };
-
-// this is an optimization used until we wrap around wxID_AUTO_HIGHEST: if this
-// value is < wxID_AUTO_HIGHEST we know that we haven't wrapped yet and so can
-// allocate the ids simply by incrementing it
-static wxWindowID gs_nextControlId = wxID_AUTO_LOWEST;
-
-void MarkAutoIdUsed(wxWindowID id)
-{
-    id -= wxID_AUTO_LOWEST;
-
-    const int theByte = id / 8;
-    const int theBit = id % 8;
-
-    gs_autoIdsInUse[theByte] |= 1 << theBit;
-}
-
-void FreeAutoId(wxWindowID id)
-{
-    id -= wxID_AUTO_LOWEST;
-
-    const int theByte = id / 8;
-    const int theBit = id % 8;
-
-    gs_autoIdsInUse[theByte] &= ~(1 << theBit);
-}
-
-bool IsAutoIdInUse(wxWindowID id)
-{
-    id -= wxID_AUTO_LOWEST;
-
-    const int theByte = id / 8;
-    const int theBit = id % 8;
-
-    return (gs_autoIdsInUse[theByte] & (1 << theBit)) != 0;
-}
-
-} // anonymous namespace
-
-
-/* static */
-bool wxWindowBase::IsAutoGeneratedId(wxWindowID id)
-{
-    if ( id < wxID_AUTO_LOWEST || id > wxID_AUTO_HIGHEST )
-        return false;
-
-    // we shouldn't have any stray ids in this range
-    wxASSERT_MSG( IsAutoIdInUse(id), "unused automatically generated id?" );
-
-    return true;
-}
-
-wxWindowID wxWindowBase::NewControlId(int count)
-{
-    wxASSERT_MSG( count > 0, "can't allocate less than 1 id" );
-
-    if ( gs_nextControlId + count - 1 <= wxID_AUTO_HIGHEST )
-    {
-        // we haven't wrapped yet, so we can just grab the next count ids
-        wxWindowID id = gs_nextControlId;
-
-        while ( count-- )
-            MarkAutoIdUsed(gs_nextControlId++);
-
-        return id;
-    }
-    else // we've already wrapped or are now going to
-    {
-        // brute-force search for the id values

 
 

-        // number of consecutive free ids found so far
-        int found = 0;
-
-        for ( wxWindowID id = wxID_AUTO_LOWEST; id <= wxID_AUTO_HIGHEST; id++ )
-        {
-            if ( !IsAutoIdInUse(id) )
-            {
-                // found another consecutive available id
-                found++;
-                if ( found == count )
-                {
-                    // mark all count consecutive free ids we found as being in
-                    // use now and rewind back to the start of available range
-                    // in the process
-                    while ( count-- )
-                        MarkAutoIdUsed(id--);
-
-                    return id;
-                }
-            }
-            else // this id is in use
-            {
-                // reset the number of consecutive free values found
-                found = 0;
-            }
-        }
-    }
-
-    // if we get here, there are not enough consecutive free ids
-    return wxID_NONE;
-}
-
-void wxWindowBase::ReleaseControlId(wxWindowID id)
-{
-    wxCHECK_RET( IsAutoGeneratedId(id), "can't release non auto-generated id" );
-
-    FreeAutoId(id);
-}