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[wxWidgets.git] / src / gtk1 / menu.cpp

diff --git a/src/gtk1/menu.cpp b/src/gtk1/menu.cpp
index ff038197a86290382779438a82437665bb5da197..8827eb6e8b3d757c51323689806ca12bcdfca7c7 100644 (file)
--- a/src/gtk1/menu.cpp
+++ b/src/gtk1/menu.cpp
@@ -15,71 +15,303 @@
 #include "wx/menu.h"
 #include "wx/log.h"
 #include "wx/intl.h"
 #include "wx/menu.h"
 #include "wx/log.h"
 #include "wx/intl.h"

+#include "wx/app.h"

 
 #include "gdk/gdk.h"
 #include "gtk/gtk.h"
 
 
 #include "gdk/gdk.h"
 #include "gtk/gtk.h"
 

+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+

 //-----------------------------------------------------------------------------
 // wxMenuBar
 //-----------------------------------------------------------------------------
 
 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
 
 //-----------------------------------------------------------------------------
 // wxMenuBar
 //-----------------------------------------------------------------------------
 
 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
 

-wxMenuBar::wxMenuBar()
+wxMenuBar::wxMenuBar( long style )

 {
 {

-    m_needParent = FALSE; // hmmm
+    /* the parent window is known after wxFrame::SetMenu() */
+    m_needParent = FALSE;
+    m_style = style;
+    m_invokingWindow = (wxWindow*) NULL;

 
 

-    PreCreation( (wxWindow *) NULL, -1, wxDefaultPosition, wxDefaultSize, 0, "menu" );
+    if (!PreCreation( (wxWindow*) NULL, wxDefaultPosition, wxDefaultSize ) ||
+        !CreateBase( (wxWindow*) NULL, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("menubar") ))
+    {
+        wxFAIL_MSG( wxT("wxMenuBar creation failed") );
+        return;
+    }

 
     m_menus.DeleteContents( TRUE );
 
 
     m_menus.DeleteContents( TRUE );
 

+    /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
+#if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
+    m_accel = gtk_accel_group_new();
+    m_factory = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", m_accel );
+    m_menubar = gtk_item_factory_get_widget( m_factory, "<main>" );
+#else

     m_menubar = gtk_menu_bar_new();
     m_menubar = gtk_menu_bar_new();

+#endif
+
+    if (style & wxMB_DOCKABLE)
+    {
+        m_widget = gtk_handle_box_new();
+        gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_menubar) );
+        gtk_widget_show( GTK_WIDGET(m_menubar) );
+    }
+    else
+    {
+        m_widget = GTK_WIDGET(m_menubar);
+    }
+
+    PostCreation();
+}
+
+wxMenuBar::wxMenuBar()
+{
+    /* the parent window is known after wxFrame::SetMenu() */
+    m_needParent = FALSE;
+    m_style = 0;
+    m_invokingWindow = (wxWindow*) NULL;
+
+    if (!PreCreation( (wxWindow*) NULL, wxDefaultPosition, wxDefaultSize ) ||
+        !CreateBase( (wxWindow*) NULL, -1, wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator, wxT("menubar") ))
+    {
+        wxFAIL_MSG( wxT("wxMenuBar creation failed") );
+        return;
+    }
+    
+    m_menus.DeleteContents( TRUE );
+
+    /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
+#if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
+    m_accel = gtk_accel_group_new();
+    m_factory = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", m_accel );
+    m_menubar = gtk_item_factory_get_widget( m_factory, "<main>" );
+#else
+    m_menubar = gtk_menu_bar_new();
+#endif

 
     m_widget = GTK_WIDGET(m_menubar);
 
     PostCreation();
 
     m_widget = GTK_WIDGET(m_menubar);
 
     PostCreation();

+}
+
+wxMenuBar::~wxMenuBar()
+{
+//    gtk_object_unref( GTK_OBJECT(m_factory) );  why not ?
+}
+
+static void wxMenubarUnsetInvokingWindow( wxMenu *menu, wxWindow *win )
+{
+    menu->SetInvokingWindow( (wxWindow*) NULL );
+
+#if (GTK_MINOR_VERSION > 0)
+    wxWindow *top_frame = win;
+    while (top_frame->GetParent()) top_frame = top_frame->GetParent();
+
+    /* support for native hot keys  */
+    gtk_accel_group_detach( menu->m_accel, GTK_OBJECT(top_frame->m_widget) );
+#endif
+
+    wxNode *node = menu->GetItems().First();
+    while (node)
+    {
+        wxMenuItem *menuitem = (wxMenuItem*)node->Data();
+        if (menuitem->IsSubMenu())
+            wxMenubarUnsetInvokingWindow( menuitem->GetSubMenu(), win );
+        node = node->Next();
+    }
+}
+
+static void wxMenubarSetInvokingWindow( wxMenu *menu, wxWindow *win )
+{
+    menu->SetInvokingWindow( win );
+
+#if (GTK_MINOR_VERSION > 0)
+    wxWindow *top_frame = win;
+    while (top_frame->GetParent())
+       top_frame = top_frame->GetParent();

 
 

-    Show( TRUE );
+    /* support for native hot keys  */
+    gtk_accel_group_attach( menu->m_accel, GTK_OBJECT(top_frame->m_widget) );
+#endif
+
+    wxNode *node = menu->GetItems().First();
+    while (node)
+    {
+        wxMenuItem *menuitem = (wxMenuItem*)node->Data();
+        if (menuitem->IsSubMenu())
+            wxMenubarSetInvokingWindow( menuitem->GetSubMenu(), win );
+        node = node->Next();
+    }
+}
+
+void wxMenuBar::SetInvokingWindow( wxWindow *win )
+{
+    m_invokingWindow = win;
+#if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
+    wxWindow *top_frame = win;
+    while (top_frame->GetParent())
+       top_frame = top_frame->GetParent();
+
+    /* support for native key accelerators indicated by underscroes */
+    gtk_accel_group_attach( m_accel, GTK_OBJECT(top_frame->m_widget) );
+#endif
+
+    wxNode *node = m_menus.First();
+    while (node)
+    {
+        wxMenu *menu = (wxMenu*)node->Data();
+        wxMenubarSetInvokingWindow( menu, win );
+        node = node->Next();
+    }
+}
+
+void wxMenuBar::UnsetInvokingWindow( wxWindow *win )
+{
+    m_invokingWindow = (wxWindow*) NULL;
+#if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
+    wxWindow *top_frame = win;
+    while (top_frame->GetParent())
+       top_frame = top_frame->GetParent();
+
+    /* support for native key accelerators indicated by underscroes */
+    gtk_accel_group_detach( m_accel, GTK_OBJECT(top_frame->m_widget) );
+#endif
+
+    wxNode *node = m_menus.First();
+    while (node)
+    {
+        wxMenu *menu = (wxMenu*)node->Data();
+        wxMenubarUnsetInvokingWindow( menu, win );
+        node = node->Next();
+    }

 }
 
 void wxMenuBar::Append( wxMenu *menu, const wxString &title )
 {
     m_menus.Append( menu );
 }
 
 void wxMenuBar::Append( wxMenu *menu, const wxString &title )
 {
     m_menus.Append( menu );

-    menu->m_title = title; 

 
 

-    int pos;
-    do 
+    const wxChar *pc;
+
+    /* GTK 1.2 wants to have "_" instead of "&" for accelerators */
+    wxString str;
+    for ( pc = title; *pc != wxT('\0'); pc++ )
+    {
+        if (*pc == wxT('&'))
+        {
+#if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
+            str << wxT('_');
+        }
+        else if (*pc == wxT('/'))
+        {
+            str << wxT('\\');
+#endif
+        }
+        else
+        {
+#if __WXGTK12__
+            if ( *pc == wxT('_') )
+            {
+                // underscores must be doubled to prevent them from being
+                // interpreted as accelerator character prefix by GTK
+                str << *pc;
+            }
+#endif // GTK+ 1.2
+
+            str << *pc;
+        }
+    }
+
+    /* this doesn't have much effect right now */
+    menu->SetTitle( str );
+
+    /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
+#if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
+
+    /* local buffer in multibyte form */
+    wxString buf;
+    buf << wxT('/') << str.c_str();
+
+    char *cbuf = new char[buf.Length()+1];
+    strcpy(cbuf, buf.mbc_str());
+
+    GtkItemFactoryEntry entry;
+    entry.path = (gchar *)cbuf;  // const_cast
+    entry.accelerator = (gchar*) NULL;
+    entry.callback = (GtkItemFactoryCallback) NULL;
+    entry.callback_action = 0;
+    entry.item_type = "<Branch>";
+
+    gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
+    /* in order to get the pointer to the item we need the item text _without_ underscores */
+    wxString tmp = wxT("<main>/");
+    for ( pc = str; *pc != wxT('\0'); pc++ )

     {
     {

-        pos = menu->m_title.First( '&' );
-        if (pos != -1) menu->m_title.Remove( pos, 1 );
-    } while (pos != -1);
+       // contrary to the common sense, we must throw out _all_ underscores,
+       // (i.e. "Hello__World" => "HelloWorld" and not "Hello_World" as we
+       // might naively think). IMHO it's a bug in GTK+ (VZ) 
+       while (*pc == wxT('_'))
+           pc++;
+       tmp << *pc;
+    }
+    menu->m_owner = gtk_item_factory_get_item( m_factory, tmp.mb_str() );
+    gtk_menu_item_set_submenu( GTK_MENU_ITEM(menu->m_owner), menu->m_menu );
+    delete [] cbuf;
+#else

 
 

-    GtkWidget *root_menu;
-    root_menu = gtk_menu_item_new_with_label( WXSTRINGCAST(menu->m_title) );
-    gtk_widget_show( root_menu );
-    gtk_menu_item_set_submenu( GTK_MENU_ITEM(root_menu), menu->m_menu );
+    menu->m_owner = gtk_menu_item_new_with_label( str.mb_str() );
+    gtk_widget_show( menu->m_owner );
+    gtk_menu_item_set_submenu( GTK_MENU_ITEM(menu->m_owner), menu->m_menu );
+
+    gtk_menu_bar_append( GTK_MENU_BAR(m_menubar), menu->m_owner );
+
+#endif

 
 

-    gtk_menu_bar_append( GTK_MENU_BAR(m_menubar), root_menu );
+    // m_invokingWindow is set after wxFrame::SetMenuBar(). This call enables
+    // adding menu later on.
+    if (m_invokingWindow)
+        wxMenubarSetInvokingWindow( menu, m_invokingWindow );

 }
 
 static int FindMenuItemRecursive( const wxMenu *menu, const wxString &menuString, const wxString &itemString )
 {
 }
 
 static int FindMenuItemRecursive( const wxMenu *menu, const wxString &menuString, const wxString &itemString )
 {

-    if (menu->m_title == menuString)
+    if (menu->GetTitle() == menuString)

     {
         int res = menu->FindItem( itemString );
     {
         int res = menu->FindItem( itemString );

-        if (res != -1) return res;
+        if (res != wxNOT_FOUND)
+            return res;

     }
     }

-    
-    wxNode *node = menu->m_items.First();
+
+    wxNode *node = ((wxMenu *)menu)->GetItems().First();    // const_cast

     while (node)
     {
         wxMenuItem *item = (wxMenuItem*)node->Data();
         if (item->IsSubMenu())
             return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);
     while (node)
     {
         wxMenuItem *item = (wxMenuItem*)node->Data();
         if (item->IsSubMenu())
             return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);

+

         node = node->Next();
     }
 
         node = node->Next();
     }
 

-    return -1;
+    return wxNOT_FOUND;
+}
+
+wxMenuItem *wxMenuBar::FindItemForId(int itemId, wxMenu **menuForItem ) const
+{
+    if ( menuForItem )
+    {
+        // TODO return the pointer to the menu
+
+        *menuForItem = NULL;
+    }
+
+    return FindItem(itemId);

 }
 
 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const
 }
 
 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const


@@ -95,26 +327,26 @@ int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemStr
     return -1;
 }
 
     return -1;
 }
 

-/* Find a wxMenuItem using its id. Recurses down into sub-menus */
+// Find a wxMenuItem using its id. Recurses down into sub-menus

 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
 {
     wxMenuItem* result = menu->FindItem(id);
 
 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
 {
     wxMenuItem* result = menu->FindItem(id);
 

-    wxNode *node = menu->m_items.First();
-    while ( node && result == NULL ) 
+    wxNode *node = ((wxMenu *)menu)->GetItems().First(); // const_cast
+    while ( node && result == NULL )

     {
         wxMenuItem *item = (wxMenuItem*)node->Data();
         if (item->IsSubMenu())
     {
         wxMenuItem *item = (wxMenuItem*)node->Data();
         if (item->IsSubMenu())

-       {
+        {

             result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );
             result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );

-       }
+        }

         node = node->Next();
     }
 
     return result;
 }
 
         node = node->Next();
     }
 
     return result;
 }
 

-wxMenuItem* wxMenuBar::FindMenuItemById( int id ) const
+wxMenuItem* wxMenuBar::FindItem( int id ) const

 {
     wxMenuItem* result = 0;
     wxNode *node = m_menus.First();
 {
     wxMenuItem* result = 0;
     wxNode *node = m_menus.First();


@@ -124,34 +356,114 @@ wxMenuItem* wxMenuBar::FindMenuItemById( int id ) const
         result = FindMenuItemByIdRecursive( menu, id );
         node = node->Next();
     }
         result = FindMenuItemByIdRecursive( menu, id );
         node = node->Next();
     }

-    
+

     return result;
 }
 
 void wxMenuBar::Check( int id, bool check )
 {
     wxMenuItem* item = FindMenuItemById( id );
     return result;
 }
 
 void wxMenuBar::Check( int id, bool check )
 {
     wxMenuItem* item = FindMenuItemById( id );

-    if (item) item->Check(check);
+
+    wxCHECK_RET( item, wxT("wxMenuBar::Check: no such item") );
+
+    item->Check(check);

 }
 
 }
 

-bool wxMenuBar::Checked( int id ) const
+bool wxMenuBar::IsChecked( int id ) const

 {
     wxMenuItem* item = FindMenuItemById( id );
 {
     wxMenuItem* item = FindMenuItemById( id );

-    if (item) return item->IsChecked();
-    return FALSE;
+
+    wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsChecked: no such item") );
+
+    return item->IsChecked();

 }
 
 void wxMenuBar::Enable( int id, bool enable )
 {
     wxMenuItem* item = FindMenuItemById( id );
 }
 
 void wxMenuBar::Enable( int id, bool enable )
 {
     wxMenuItem* item = FindMenuItemById( id );

-    if (item) item->Enable(enable);
+
+    wxCHECK_RET( item, wxT("wxMenuBar::Enable: no such item") );
+
+    item->Enable(enable);
+}
+
+bool wxMenuBar::IsEnabled( int id ) const
+{
+    wxMenuItem* item = FindMenuItemById( id );
+
+    wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsEnabled: no such item") );
+
+    return item->IsEnabled();
+}
+
+wxString wxMenuBar::GetLabel( int id ) const
+{
+    wxMenuItem* item = FindMenuItemById( id );
+
+    wxCHECK_MSG( item, wxT(""), wxT("wxMenuBar::GetLabel: no such item") );
+
+    return item->GetText();
+}
+
+void wxMenuBar::SetLabel( int id, const wxString &label )
+{
+    wxMenuItem* item = FindMenuItemById( id );
+
+    wxCHECK_RET( item, wxT("wxMenuBar::SetLabel: no such item") );
+
+    item->SetText( label );
+}
+
+void wxMenuBar::EnableTop( int pos, bool flag )
+{
+    wxNode *node = m_menus.Nth( pos );
+
+    wxCHECK_RET( node, wxT("menu not found") );
+
+    wxMenu* menu = (wxMenu*)node->Data();
+
+    if (menu->m_owner)
+        gtk_widget_set_sensitive( menu->m_owner, flag );
+}
+
+wxString wxMenuBar::GetLabelTop( int pos ) const
+{
+    wxNode *node = m_menus.Nth( pos );
+
+    wxCHECK_MSG( node, wxT("invalid"), wxT("menu not found") );
+
+    wxMenu* menu = (wxMenu*)node->Data();
+
+    return menu->GetTitle();
+}
+
+void wxMenuBar::SetLabelTop( int pos, const wxString& label )
+{
+    wxNode *node = m_menus.Nth( pos );
+
+    wxCHECK_RET( node, wxT("menu not found") );
+
+    wxMenu* menu = (wxMenu*)node->Data();
+
+    menu->SetTitle( label );
+}
+
+void wxMenuBar::SetHelpString( int id, const wxString& helpString )
+{
+    wxMenuItem* item = FindMenuItemById( id );
+
+    wxCHECK_RET( item, wxT("wxMenuBar::SetHelpString: no such item") );
+
+    item->SetHelp( helpString );

 }
 
 }
 

-bool wxMenuBar::Enabled( int id ) const
+wxString wxMenuBar::GetHelpString( int id ) const

 {
     wxMenuItem* item = FindMenuItemById( id );
 {
     wxMenuItem* item = FindMenuItemById( id );

-    if (item) return item->IsEnabled();
-    return FALSE;
+
+    wxCHECK_MSG( item, wxT(""), wxT("wxMenuBar::GetHelpString: no such item") );
+
+    return item->GetHelp();

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


@@ -160,27 +472,49 @@ bool wxMenuBar::Enabled( int id ) const
 
 static void gtk_menu_clicked_callback( GtkWidget *widget, wxMenu *menu )
 {
 
 static void gtk_menu_clicked_callback( GtkWidget *widget, wxMenu *menu )
 {

+    if (g_isIdle) wxapp_install_idle_handler();
+

     int id = menu->FindMenuIdByMenuItem(widget);
 
     /* should find it for normal (not popup) menu */
     int id = menu->FindMenuIdByMenuItem(widget);
 
     /* should find it for normal (not popup) menu */

-    wxASSERT( (id != -1) || (menu->GetInvokingWindow() != NULL) ); 
+    wxASSERT( (id != -1) || (menu->GetInvokingWindow() != NULL) );

 
 

-    if (!menu->IsEnabled(id)) return;
+    if (!menu->IsEnabled(id))
+        return;
+
+    wxMenuItem* item = menu->FindItem( id );
+    wxCHECK_RET( item, wxT("error in menu item callback") );
+
+    if (item->IsCheckable())
+    {
+        if (item->GetCheckedFlag() == item->IsChecked())
+        {
+            /* the menu item has been checked by calling wxMenuItem->Check() */
+            return;
+        }
+        else
+        {
+            /* the user pressed on the menu item -> report */
+            item->SetCheckedFlag(item->IsChecked());  /* make consistent again */
+        }
+    }

 
     wxCommandEvent event( wxEVT_COMMAND_MENU_SELECTED, id );
     event.SetEventObject( menu );
     event.SetInt(id );
 
 
     wxCommandEvent event( wxEVT_COMMAND_MENU_SELECTED, id );
     event.SetEventObject( menu );
     event.SetInt(id );
 

-    if (menu->m_callback)
+    if (menu->GetCallback())

     {
     {

-        (void) (*(menu->m_callback)) (*menu, event);
+        (void) (*(menu->GetCallback())) (*menu, event);

         return;
     }
 
         return;
     }
 

-    if (menu->GetEventHandler()->ProcessEvent(event)) return;
+    if (menu->GetEventHandler()->ProcessEvent(event))
+        return;

 
     wxWindow *win = menu->GetInvokingWindow();
 
     wxWindow *win = menu->GetInvokingWindow();

-    if (win) win->GetEventHandler()->ProcessEvent( event );
+    if (win)
+        win->GetEventHandler()->ProcessEvent( event );

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


@@ -189,29 +523,49 @@ static void gtk_menu_clicked_callback( GtkWidget *widget, wxMenu *menu )
 
 static void gtk_menu_hilight_callback( GtkWidget *widget, wxMenu *menu )
 {
 
 static void gtk_menu_hilight_callback( GtkWidget *widget, wxMenu *menu )
 {

+    if (g_isIdle) wxapp_install_idle_handler();
+

     int id = menu->FindMenuIdByMenuItem(widget);
 
     wxASSERT( id != -1 ); // should find it!
 
     int id = menu->FindMenuIdByMenuItem(widget);
 
     wxASSERT( id != -1 ); // should find it!
 

-    if (!menu->IsEnabled(id)) return;
+    if (!menu->IsEnabled(id))
+        return;

 
 

-    wxCommandEvent event( wxEVT_MENU_HIGHLIGHT, id );
+    wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, id );

     event.SetEventObject( menu );
     event.SetEventObject( menu );

-    event.SetInt(id );

 
 

-/*   wxMSW doesn't call callback here either
+    if (menu->GetEventHandler()->ProcessEvent(event))
+        return;
+
+    wxWindow *win = menu->GetInvokingWindow();
+    if (win) win->GetEventHandler()->ProcessEvent( event );
+}
+
+//-----------------------------------------------------------------------------
+// "deselect"
+//-----------------------------------------------------------------------------
+
+static void gtk_menu_nolight_callback( GtkWidget *widget, wxMenu *menu )
+{
+    if (g_isIdle) wxapp_install_idle_handler();

 
 

-     if (menu->m_callback)
-     {
-        (void) (*(menu->m_callback)) (*menu, event);
+    int id = menu->FindMenuIdByMenuItem(widget);
+
+    wxASSERT( id != -1 ); // should find it!
+
+    if (!menu->IsEnabled(id))

         return;
         return;

-     }
-*/

 
 

-    if (menu->GetEventHandler()->ProcessEvent(event)) return;
+    wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, -1 );
+    event.SetEventObject( menu );
+
+    if (menu->GetEventHandler()->ProcessEvent(event))
+        return;

 
     wxWindow *win = menu->GetInvokingWindow();
 
     wxWindow *win = menu->GetInvokingWindow();

-    if (win) win->GetEventHandler()->ProcessEvent( event );
+    if (win)
+        win->GetEventHandler()->ProcessEvent( event );

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


@@ -230,28 +584,61 @@ wxMenuItem::wxMenuItem()
     m_menuItem = (GtkWidget *) NULL;
 }
 
     m_menuItem = (GtkWidget *) NULL;
 }
 

-/* it's valid for this function to be called even if m_menuItem == NULL */
+wxMenuItem::~wxMenuItem()
+{
+   // don't delete menu items, the menus take care of that
+}
+
+// it's valid for this function to be called even if m_menuItem == NULL

 void wxMenuItem::SetName( const wxString& str )
 {
 void wxMenuItem::SetName( const wxString& str )
 {

-    m_text = "";
-    for ( const char *pc = str; *pc != '\0'; pc++ )
+    /* '\t' is the deliminator indicating a hot key */
+    m_text = wxT("");
+    const wxChar *pc = str;
+    for (; (*pc != wxT('\0')) && (*pc != wxT('\t')); pc++ )

     {
     {

-        if (*pc == '&') pc++; /* skip it */
-        m_text << *pc;
+        if (*pc == wxT('&'))
+        {
+#if (GTK_MINOR_VERSION > 0)
+            m_text << wxT('_');
+        }
+        else if ( *pc == wxT('_') )    // escape underscores
+        {
+            m_text << wxT("__");
+        }
+        else if (*pc == wxT('/'))      /* we have to filter out slashes ... */
+        {
+            m_text << wxT('\\');  /* ... and replace them with back slashes */
+#endif
+        }
+        else
+           m_text << *pc;

     }
 
     }
 

+    /* only GTK 1.2 knows about hot keys */
+    m_hotKey = wxT("");
+#if (GTK_MINOR_VERSION > 0)
+    if(*pc == wxT('\t'))
+    {
+       pc++;
+       m_hotKey = pc;
+    }
+#endif
+

     if (m_menuItem)
     {
         GtkLabel *label = GTK_LABEL( GTK_BIN(m_menuItem)->child );
     if (m_menuItem)
     {
         GtkLabel *label = GTK_LABEL( GTK_BIN(m_menuItem)->child );

-        gtk_label_set( label, m_text.c_str());
+        gtk_label_set( label, m_text.mb_str());

     }
 }
 
 void wxMenuItem::Check( bool check )
 {
     }
 }
 
 void wxMenuItem::Check( bool check )
 {

-    wxCHECK_RET( m_menuItem, "invalid menu item" );
+    wxCHECK_RET( m_menuItem, wxT("invalid menu item") );
+
+    wxCHECK_RET( IsCheckable(), wxT("Can't check uncheckable item!") )

 
 

-    wxCHECK_RET( IsCheckable(), "Can't check uncheckable item!" )
+    if (check == m_isChecked) return;

 
     m_isChecked = check;
     gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 
     m_isChecked = check;
     gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );


@@ -259,7 +646,7 @@ void wxMenuItem::Check( bool check )
 
 void wxMenuItem::Enable( bool enable )
 {
 
 void wxMenuItem::Enable( bool enable )
 {

-    wxCHECK_RET( m_menuItem, "invalid menu item" );
+    wxCHECK_RET( m_menuItem, wxT("invalid menu item") );

 
     gtk_widget_set_sensitive( m_menuItem, enable );
     m_isEnabled = enable;
 
     gtk_widget_set_sensitive( m_menuItem, enable );
     m_isEnabled = enable;


@@ -267,14 +654,12 @@ void wxMenuItem::Enable( bool enable )
 
 bool wxMenuItem::IsChecked() const
 {
 
 bool wxMenuItem::IsChecked() const
 {

-    wxCHECK_MSG( m_menuItem, FALSE, "invalid menu item" );
+    wxCHECK_MSG( m_menuItem, FALSE, wxT("invalid menu item") );

 
     wxCHECK( IsCheckable(), FALSE ); // can't get state of uncheckable item!
 
     bool bIsChecked = ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 
 
     wxCHECK( IsCheckable(), FALSE ); // can't get state of uncheckable item!
 
     bool bIsChecked = ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 

-    wxASSERT( bIsChecked == m_isChecked ); // consistency check
-

     return bIsChecked;
 }
 
     return bIsChecked;
 }
 


@@ -284,28 +669,77 @@ bool wxMenuItem::IsChecked() const
 
 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 

-wxMenu::wxMenu( const wxString& title, const wxFunction func )
+void
+wxMenu::Init( const wxString& title,
+              long style,
+              const wxFunction func
+            )

 {
     m_title = title;
     m_items.DeleteContents( TRUE );
     m_invokingWindow = (wxWindow *) NULL;
 {
     m_title = title;
     m_items.DeleteContents( TRUE );
     m_invokingWindow = (wxWindow *) NULL;

+    m_style = style;
+
+#if (GTK_MINOR_VERSION > 0)
+    m_accel = gtk_accel_group_new();
+    m_factory = gtk_item_factory_new( GTK_TYPE_MENU, "<main>", m_accel );
+    m_menu = gtk_item_factory_get_widget( m_factory, "<main>" );
+#else

     m_menu = gtk_menu_new();  // Do not show!
     m_menu = gtk_menu_new();  // Do not show!

+#endif

 
     m_callback = func;
 
     m_callback = func;

+

     m_eventHandler = this;
     m_clientData = (void*) NULL;
 
     m_eventHandler = this;
     m_clientData = (void*) NULL;
 

-    if (m_title.IsNull()) m_title = "";
-    if (m_title != "")
+    if (m_title.IsNull()) m_title = wxT("");
+    if (m_title != wxT(""))

     {
         Append(-2, m_title);
         AppendSeparator();
     }
     {
         Append(-2, m_title);
         AppendSeparator();
     }

+
+    m_owner = (GtkWidget*) NULL;
+
+#if (GTK_MINOR_VERSION > 0)
+    /* Tearoffs are entries, just like separators. So if we want this
+       menu to be a tear-off one, we just append a tearoff entry
+       immediately. */
+    if(m_style & wxMENU_TEAROFF)
+    {
+       GtkItemFactoryEntry entry;
+       entry.path = "/tearoff";
+       entry.callback = (GtkItemFactoryCallback) NULL;
+       entry.callback_action = 0;
+       entry.item_type = "<Tearoff>";
+       entry.accelerator = (gchar*) NULL;
+       gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
+       //GtkWidget *menuItem = gtk_item_factory_get_widget( m_factory, "<main>/tearoff" );
+    }
+#endif
+}
+
+wxMenu::~wxMenu()
+{
+    wxNode *node = m_items.First();
+    while (node)
+    {
+        wxMenuItem *item = (wxMenuItem*)node->Data();
+       wxMenu *submenu = item->GetSubMenu();
+       if (submenu)
+          delete submenu;
+        node = node->Next();
+    }
+
+   gtk_widget_destroy( m_menu );
+   
+   gtk_object_unref( GTK_OBJECT(m_factory) );

 }
 
 void wxMenu::SetTitle( const wxString& title )
 {
 }
 
 void wxMenu::SetTitle( const wxString& title )
 {

-    /* Waiting for something better. */
+    // TODO Waiting for something better

     m_title = title;
 }
 
     m_title = title;
 }
 


@@ -319,13 +753,68 @@ void wxMenu::AppendSeparator()
     wxMenuItem *mitem = new wxMenuItem();
     mitem->SetId(ID_SEPARATOR);
 
     wxMenuItem *mitem = new wxMenuItem();
     mitem->SetId(ID_SEPARATOR);
 

+#if (GTK_MINOR_VERSION > 0)
+    GtkItemFactoryEntry entry;
+    entry.path = "/sep";
+    entry.callback = (GtkItemFactoryCallback) NULL;
+    entry.callback_action = 0;
+    entry.item_type = "<Separator>";
+    entry.accelerator = (gchar*) NULL;
+
+    gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
+
+    /* this will be wrong for more than one separator. do we care? */
+    GtkWidget *menuItem = gtk_item_factory_get_widget( m_factory, "<main>/sep" );
+#else

     GtkWidget *menuItem = gtk_menu_item_new();
     gtk_menu_append( GTK_MENU(m_menu), menuItem );
     gtk_widget_show( menuItem );
     GtkWidget *menuItem = gtk_menu_item_new();
     gtk_menu_append( GTK_MENU(m_menu), menuItem );
     gtk_widget_show( menuItem );

+#endif
+

     mitem->SetMenuItem(menuItem);
     m_items.Append( mitem );
 }
 
     mitem->SetMenuItem(menuItem);
     m_items.Append( mitem );
 }
 

+#if (GTK_MINOR_VERSION > 0)
+static char* GetHotKey( const wxString &hotkey, char *hotbuf )
+{
+    if (hotkey.IsEmpty()) return (char*) NULL;
+
+    switch (hotkey[0])
+    {
+        case wxT('a'):   /* Alt */
+        case wxT('A'):
+        case wxT('m'):   /* Meta */
+        case wxT('M'):
+        {
+            strcpy( hotbuf, "<alt>" );
+            wxString last = hotkey.Right(1);
+            strcat( hotbuf, last.mb_str() );
+            return hotbuf;
+        }
+        case wxT('c'):    /* Ctrl */
+        case wxT('C'):
+        case wxT('s'):    /* Strg, yeah man, I'm German */
+        case wxT('S'):
+        {
+            strcpy( hotbuf, "<control>" );
+            wxString last = hotkey.Right(1);
+            strcat( hotbuf, last.mb_str() );
+            return hotbuf;
+        }
+        case wxT('F'):   /* function keys */
+        {
+            strcpy( hotbuf, hotkey.mb_str() );
+            return hotbuf;
+        }
+        default:
+        {
+        }
+    }
+    return (char*) NULL;
+}
+#endif
+

 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 {
     wxMenuItem *mitem = new wxMenuItem();
 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 {
     wxMenuItem *mitem = new wxMenuItem();


@@ -333,150 +822,278 @@ void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool
     mitem->SetText(item);
     mitem->SetHelp(helpStr);
     mitem->SetCheckable(checkable);
     mitem->SetText(item);
     mitem->SetHelp(helpStr);
     mitem->SetCheckable(checkable);

-    const char *text = mitem->GetText();
-    GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label(text)
-                                    : gtk_menu_item_new_with_label(text);

 
 

-    mitem->SetMenuItem(menuItem);
+#if (GTK_MINOR_VERSION > 0)
+    /* text has "_" instead of "&" after mitem->SetText() */
+    wxString text( mitem->GetText() );
+
+    /* local buffer in multibyte form */
+    char buf[200];
+    strcpy( buf, "/" );
+    strcat( buf, text.mb_str() );
+
+    GtkItemFactoryEntry entry;
+    entry.path = buf;
+    entry.callback = (GtkItemFactoryCallback) gtk_menu_clicked_callback;
+    entry.callback_action = 0;
+    if (checkable)
+        entry.item_type = "<CheckItem>";
+    else
+        entry.item_type = "<Item>";
+
+    char hotbuf[50];
+    entry.accelerator = GetHotKey( mitem->GetHotKey(), hotbuf );
+
+    gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
+
+    /* in order to get the pointer to the item we need the item text _without_ underscores */
+    wxString s = wxT("<main>/");
+    for ( const wxChar *pc = text; *pc != wxT('\0'); pc++ )
+    {
+        while (*pc == wxT('_')) pc++; /* skip it */
+        s << *pc;
+    }
+
+    GtkWidget *menuItem = gtk_item_factory_get_widget( m_factory, s.mb_str() );
+
+#else
+
+    GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label( mitem->GetText().mb_str() )
+                                    : gtk_menu_item_new_with_label( mitem->GetText().mb_str() );

 
     gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
                         GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 
     gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
                         GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),

-                        (gpointer*)this );
+                        (gpointer)this );
+
+    gtk_menu_append( GTK_MENU(m_menu), menuItem );
+    gtk_widget_show( menuItem );
+
+#endif

 
     gtk_signal_connect( GTK_OBJECT(menuItem), "select",
                         GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
 
     gtk_signal_connect( GTK_OBJECT(menuItem), "select",
                         GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),

-                        (gpointer*)this );
+                        (gpointer)this );
+
+    gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
+                        GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
+                        (gpointer)this );
+
+    mitem->SetMenuItem(menuItem);

 
 

-    gtk_menu_append( GTK_MENU(m_menu), menuItem );
-    gtk_widget_show( menuItem );

     m_items.Append( mitem );
 }
 
     m_items.Append( mitem );
 }
 

-void wxMenu::Append( int id, const wxString &text, wxMenu *subMenu, const wxString &helpStr )
+void wxMenu::Append( int id, const wxString &item, wxMenu *subMenu, const wxString &helpStr )

 {
     wxMenuItem *mitem = new wxMenuItem();
     mitem->SetId(id);
 {
     wxMenuItem *mitem = new wxMenuItem();
     mitem->SetId(id);

-    mitem->SetText(text);
-
-    GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText());
+    mitem->SetText(item);

     mitem->SetHelp(helpStr);
     mitem->SetHelp(helpStr);

+
+#if (GTK_MINOR_VERSION > 0)
+    /* text has "_" instead of "&" after mitem->SetText() */
+    wxString text( mitem->GetText() );
+
+    /* local buffer in multibyte form */
+    char buf[200];
+    strcpy( buf, "/" );
+    strcat( buf, text.mb_str() );
+
+    GtkItemFactoryEntry entry;
+    entry.path = buf;
+    entry.callback = (GtkItemFactoryCallback) 0;
+    entry.callback_action = 0;
+    entry.item_type = "<Branch>";
+
+    gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
+
+    /* in order to get the pointer to the item we need the item text _without_ underscores */
+    wxString s = wxT("<main>/");
+    for ( const wxChar *pc = text; *pc != wxT('\0'); pc++ )
+    {
+        if (*pc == wxT('_')) pc++; /* skip it */
+        s << *pc;
+    }
+
+    GtkWidget *menuItem = gtk_item_factory_get_item( m_factory, s.mb_str() );
+
+#else
+
+    GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText().mbc_str());
+
+    gtk_menu_append( GTK_MENU(m_menu), menuItem );
+    gtk_widget_show( menuItem );
+
+#endif
+
+    gtk_signal_connect( GTK_OBJECT(menuItem), "select",
+                        GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
+                        (gpointer*)this );
+
+    gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
+                        GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
+                        (gpointer*)this );
+
+    gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
+

     mitem->SetMenuItem(menuItem);
     mitem->SetSubMenu(subMenu);
 
     mitem->SetMenuItem(menuItem);
     mitem->SetSubMenu(subMenu);
 

-    gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
+    m_items.Append( mitem );
+}
+
+void wxMenu::Append( wxMenuItem *item )
+{
+    m_items.Append( item );
+
+    GtkWidget *menuItem = (GtkWidget*) NULL;
+
+    if (item->IsSeparator())
+        menuItem = gtk_menu_item_new();
+    else if (item->IsSubMenu())
+        menuItem = gtk_menu_item_new_with_label(item->GetText().mbc_str());
+    else
+        menuItem = item->IsCheckable() ? gtk_check_menu_item_new_with_label(item->GetText().mbc_str())
+                                       : gtk_menu_item_new_with_label(item->GetText().mbc_str());
+
+    if (!item->IsSeparator())
+    {
+        gtk_signal_connect( GTK_OBJECT(menuItem), "select",
+                            GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
+                            (gpointer*)this );
+
+        gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
+                            GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
+                            (gpointer*)this );
+
+        if (!item->IsSubMenu())
+        {
+            gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
+                                GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
+                                (gpointer*)this );
+        }
+    }
+

     gtk_menu_append( GTK_MENU(m_menu), menuItem );
     gtk_widget_show( menuItem );
     gtk_menu_append( GTK_MENU(m_menu), menuItem );
     gtk_widget_show( menuItem );

-    m_items.Append( mitem );
+    item->SetMenuItem(menuItem);

 }
 
 }
 

-int wxMenu::FindItem( const wxString itemString ) const
+void wxMenu::Delete( int id )

 {
 {

-    wxString s( itemString );
+    wxNode *node = m_items.First();
+    while (node)
+    {
+        wxMenuItem *item = (wxMenuItem*)node->Data();
+        if (item->GetId() == id)
+        {
+           gtk_widget_destroy( item->GetMenuItem() );
+           m_items.DeleteNode( node );
+            return;
+        }
+        node = node->Next();
+    }
+}

 
 

-    int pos;
-    do 
+int wxMenu::FindItem( const wxString itemString ) const
+{
+    wxString s = wxT("");
+    for ( const wxChar *pc = itemString; *pc != wxT('\0'); pc++ )

     {
     {

-        pos = s.First( '&' );
-        if (pos != -1) s.Remove( pos, 1 );
-    } while (pos != -1);
+        if (*pc == wxT('&'))
+        {
+            pc++; /* skip it */
+#if (GTK_MINOR_VERSION > 0)
+            s << wxT('_');
+#endif
+        }
+        s << *pc;
+    }

 
     wxNode *node = m_items.First();
     while (node)
     {
         wxMenuItem *item = (wxMenuItem*)node->Data();
         if (item->GetText() == s)
 
     wxNode *node = m_items.First();
     while (node)
     {
         wxMenuItem *item = (wxMenuItem*)node->Data();
         if (item->GetText() == s)

-       {
+        {

             return item->GetId();
             return item->GetId();

-       }
+        }

         node = node->Next();
     }
 
         node = node->Next();
     }
 

-    return -1;
+    return wxNOT_FOUND;

 }
 
 void wxMenu::Enable( int id, bool enable )
 {
     wxMenuItem *item = FindItem(id);
 }
 
 void wxMenu::Enable( int id, bool enable )
 {
     wxMenuItem *item = FindItem(id);

-    if (item)
-    { 
-        item->Enable(enable);
-    }
+
+    wxCHECK_RET( item, wxT("wxMenu::Enable: no such item") );
+
+    item->Enable(enable);

 }
 
 bool wxMenu::IsEnabled( int id ) const
 {
     wxMenuItem *item = FindItem(id);
 }
 
 bool wxMenu::IsEnabled( int id ) const
 {
     wxMenuItem *item = FindItem(id);

-    if (item)
-    {
-        return item->IsEnabled();
-    }
-    else
-    {
-        return FALSE;
-    }
+
+    wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsEnabled: no such item") );
+
+    return item->IsEnabled();

 }
 
 void wxMenu::Check( int id, bool enable )
 {
     wxMenuItem *item = FindItem(id);
 }
 
 void wxMenu::Check( int id, bool enable )
 {
     wxMenuItem *item = FindItem(id);

-    if (item)
-    {
-        item->Check(enable);
-    }
+
+    wxCHECK_RET( item, wxT("wxMenu::Check: no such item") );
+
+    item->Check(enable);

 }
 
 bool wxMenu::IsChecked( int id ) const
 {
     wxMenuItem *item = FindItem(id);
 }
 
 bool wxMenu::IsChecked( int id ) const
 {
     wxMenuItem *item = FindItem(id);

-    if (item)
-    {
-        return item->IsChecked();
-    }
-    else
-    {
-        return FALSE;
-    }
+
+    wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsChecked: no such item") );
+
+    return item->IsChecked();

 }
 
 void wxMenu::SetLabel( int id, const wxString &label )
 {
     wxMenuItem *item = FindItem(id);
 }
 
 void wxMenu::SetLabel( int id, const wxString &label )
 {
     wxMenuItem *item = FindItem(id);

-    if (item)
-    {
-        item->SetText(label);
-    }
+
+    wxCHECK_RET( item, wxT("wxMenu::SetLabel: no such item") );
+
+    item->SetText(label);

 }
 
 wxString wxMenu::GetLabel( int id ) const
 {
     wxMenuItem *item = FindItem(id);
 }
 
 wxString wxMenu::GetLabel( int id ) const
 {
     wxMenuItem *item = FindItem(id);

-    if (item)
-    { 
-        return item->GetText();
-    }
-    else
-    {
-        return "";
-    }
+
+    wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetLabel: no such item") );
+
+    return item->GetText();

 }
 
 void wxMenu::SetHelpString( int id, const wxString& helpString )
 {
     wxMenuItem *item = FindItem(id);
 }
 
 void wxMenu::SetHelpString( int id, const wxString& helpString )
 {
     wxMenuItem *item = FindItem(id);

-    if (item) item->SetHelp( helpString );
+
+    wxCHECK_RET( item, wxT("wxMenu::SetHelpString: no such item") );
+
+    item->SetHelp( helpString );

 }
 
 wxString wxMenu::GetHelpString( int id ) const
 {
     wxMenuItem *item = FindItem(id);
 }
 
 wxString wxMenu::GetHelpString( int id ) const
 {
     wxMenuItem *item = FindItem(id);

-    if (item)
-    { 
-        return item->GetHelp();
-    }
-    else
-    {
-        return "";
-    }
+
+    wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetHelpString: no such item") );
+
+    return item->GetHelp();

 }
 
 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 }
 
 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const


@@ -490,19 +1107,19 @@ int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
         node = node->Next();
     }
 
         node = node->Next();
     }
 

-    return -1;
+    return wxNOT_FOUND;

 }
 
 wxMenuItem *wxMenu::FindItem(int id) const
 {
     wxNode *node = m_items.First();
 }
 
 wxMenuItem *wxMenu::FindItem(int id) const
 {
     wxNode *node = m_items.First();

-    while (node) 
+    while (node)

     {
         wxMenuItem *item = (wxMenuItem*)node->Data();
         if (item->GetId() == id)
     {
         wxMenuItem *item = (wxMenuItem*)node->Data();
         if (item->GetId() == id)

-       {
+        {

             return item;
             return item;

-       }
+        }

         node = node->Next();
     }
 
         node = node->Next();
     }
 


@@ -523,4 +1140,42 @@ wxWindow *wxMenu::GetInvokingWindow()
     return m_invokingWindow;
 }
 
     return m_invokingWindow;
 }
 

+// Update a menu and all submenus recursively. source is the object that has
+// the update event handlers defined for it. If NULL, the menu or associated
+// window will be used.
+void wxMenu::UpdateUI(wxEvtHandler* source)
+{
+  if (!source && GetInvokingWindow())
+    source = GetInvokingWindow()->GetEventHandler();
+  if (!source)
+    source = GetEventHandler();
+  if (!source)
+    source = this;
+
+  wxNode* node = GetItems().First();
+  while (node)
+  {
+    wxMenuItem* item = (wxMenuItem*) node->Data();
+    if ( !item->IsSeparator() )
+    {
+      wxWindowID id = item->GetId();
+      wxUpdateUIEvent event(id);
+      event.SetEventObject( source );
+
+      if (source->ProcessEvent(event))
+      {
+        if (event.GetSetText())
+          SetLabel(id, event.GetText());
+        if (event.GetSetChecked())
+          Check(id, event.GetChecked());
+        if (event.GetSetEnabled())
+          Enable(id, event.GetEnabled());
+      }
+
+      if (item->GetSubMenu())
+        item->GetSubMenu()->UpdateUI(source);
+    }
+    node = node->Next();
+  }
+}