X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/260a67b7aaabe1a3628c9b26a95e0d0f53f2bca4..89c831801467203372b6964a785823f19e8063dd:/src/gtk/combobox.cpp?ds=inline

diff --git a/src/gtk/combobox.cpp b/src/gtk/combobox.cpp
index 7d42568e62..6c967b58be 100644
--- a/src/gtk/combobox.cpp
+++ b/src/gtk/combobox.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        combobox.cpp
+// Name:        src/gtk/combobox.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,10 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "combobox.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -38,58 +34,130 @@ extern bool g_isIdle;
 //-----------------------------------------------------------------------------
 
 extern bool   g_blockEventsOnDrag;
+static int    g_SelectionBeforePopup = wxID_NONE; // this means the popup is hidden
 
 //-----------------------------------------------------------------------------
-// "select-child" - click/cursor get select-child, changed, select-child
+//  "changed" - typing and list item matches get changed, select-child
+//              if it doesn't match an item then just get a single changed
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static void
-gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
+    if (combo->m_ignoreNextUpdate)
+    {
+        combo->m_ignoreNextUpdate = false;
+        return;
+    }
+
     if (!combo->m_hasVMT) return;
 
-    if (g_blockEventsOnDrag) return;
+    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
+    event.SetString( combo->GetValue() );
+    event.SetEventObject( combo );
+    combo->GetEventHandler()->ProcessEvent( event );
+}
+}
 
-    int curSelection = combo->GetSelection();
+extern "C" {
+static void
+gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo))
+{
+}
+}
 
-    if (combo->m_prevSelection == curSelection) return;
+extern "C" {
+static void
+gtk_popup_hide_callback(GtkCombo *WXUNUSED(gtk_combo), wxComboBox *combo)
+{
+    // when the popup is hidden, throw a SELECTED event only if the combobox
+    // selection changed.
+    int curSelection = combo->GetCurrentSelection();
+    if (g_SelectionBeforePopup != curSelection)
+    {
+        wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
+        event.SetInt( curSelection );
+        event.SetString( combo->GetStringSelection() );
+        event.SetEventObject( combo );
+        combo->GetEventHandler()->ProcessEvent( event );
+
+        // for consistency with the other ports, send TEXT event
+        wxCommandEvent event2( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
+        event2.SetString( combo->GetStringSelection() );
+        event2.SetEventObject( combo );
+        combo->GetEventHandler()->ProcessEvent( event2 );
+    }
 
-    GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
-    gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
-    
-    combo->m_prevSelection = curSelection;
+    // reset the selection flag to value meaning that it is hidden
+    g_SelectionBeforePopup = wxID_NONE;
+}
+}
 
-    wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
-    event.SetInt( curSelection );
-    event.SetString( combo->GetStringSelection() );
-    event.SetEventObject( combo );
-    
-    combo->GetEventHandler()->ProcessEvent( event );
+extern "C" {
+static void
+gtk_popup_show_callback(GtkCombo *WXUNUSED(gtk_combo), wxComboBox *combo)
+{
+    // store the combobox selection value before the popup is shown
+    g_SelectionBeforePopup = combo->GetCurrentSelection();
+}
 }
 
 //-----------------------------------------------------------------------------
-//  "changed" - typing and list item matches get changed, select-child
-//              if it doesn't match an item then just get a single changed
+// "select-child" - click/cursor get select-child, changed, select-child
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static void
-gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo )
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
     if (!combo->m_hasVMT) return;
 
-    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
-    event.SetString( combo->GetValue() );
-    event.SetEventObject( combo );
-    combo->GetEventHandler()->ProcessEvent( event );
-}
+    if (g_blockEventsOnDrag) return;
 
-static void
-gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo))
-{
+    int curSelection = combo->GetCurrentSelection();
+
+    if (combo->m_prevSelection == curSelection) return;
+
+    GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
+    gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
+
+    combo->m_prevSelection = curSelection;
+
+    // Quickly set the value of the combo box
+    // as GTK+ does that only AFTER the event
+    // is sent.
+    gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry),
+      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo );
+    combo->SetValue( combo->GetStringSelection() );
+    gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry), "changed",
+      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo );
+
+    // throw a SELECTED event only if the combobox popup is hidden (wxID_NONE)
+    // because when combobox popup is shown, gtk_combo_select_child_callback is
+    // called each times the mouse is over an item with a pressed button so a lot
+    // of SELECTED event could be generated if the user keep the mouse button down
+    // and select other items ...
+    if (g_SelectionBeforePopup == wxID_NONE)
+    {
+        wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
+        event.SetInt( curSelection );
+        event.SetString( combo->GetStringSelection() );
+        event.SetEventObject( combo );
+        combo->GetEventHandler()->ProcessEvent( event );
+
+        // for consistency with the other ports, don't generate text update
+        // events while the user is browsing the combobox neither
+        wxCommandEvent event2( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
+        event2.SetString( combo->GetValue() );
+        event2.SetEventObject( combo );
+        combo->GetEventHandler()->ProcessEvent( event2 );
+    }
+}
 }
 
 //-----------------------------------------------------------------------------
@@ -101,6 +169,22 @@ IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
     EVT_SIZE(wxComboBox::OnSize)
     EVT_CHAR(wxComboBox::OnChar)
+
+    EVT_MENU(wxID_CUT, wxComboBox::OnCut)
+    EVT_MENU(wxID_COPY, wxComboBox::OnCopy)
+    EVT_MENU(wxID_PASTE, wxComboBox::OnPaste)
+    EVT_MENU(wxID_UNDO, wxComboBox::OnUndo)
+    EVT_MENU(wxID_REDO, wxComboBox::OnRedo)
+    EVT_MENU(wxID_CLEAR, wxComboBox::OnDelete)
+    EVT_MENU(wxID_SELECTALL, wxComboBox::OnSelectAll)
+
+    EVT_UPDATE_UI(wxID_CUT, wxComboBox::OnUpdateCut)
+    EVT_UPDATE_UI(wxID_COPY, wxComboBox::OnUpdateCopy)
+    EVT_UPDATE_UI(wxID_PASTE, wxComboBox::OnUpdatePaste)
+    EVT_UPDATE_UI(wxID_UNDO, wxComboBox::OnUpdateUndo)
+    EVT_UPDATE_UI(wxID_REDO, wxComboBox::OnUpdateRedo)
+    EVT_UPDATE_UI(wxID_CLEAR, wxComboBox::OnUpdateDelete)
+    EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll)
 END_EVENT_TABLE()
 
 bool wxComboBox::Create( wxWindow *parent, wxWindowID id,
@@ -122,16 +206,16 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
                          long style, const wxValidator& validator,
                          const wxString& name )
 {
-    m_alreadySent = FALSE;
-    m_needParent = TRUE;
-    m_acceptsFocus = TRUE;
+    m_ignoreNextUpdate = false;
+    m_needParent = true;
+    m_acceptsFocus = true;
     m_prevSelection = 0;
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
         wxFAIL_MSG( wxT("wxComboBox creation failed") );
-        return FALSE;
+        return false;
     }
 
     m_widget = gtk_combo_new();
@@ -139,9 +223,9 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
 
     // Disable GTK's broken events ...
     gtk_signal_disconnect( GTK_OBJECT(combo->entry), combo->entry_change_id );
-    // ... and add surogate handler.
+    // ... and add surrogate handler.
     combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed",
-			      (GtkSignalFunc) gtk_dummy_callback, combo);
+                  (GtkSignalFunc) gtk_dummy_callback, combo);
 
     // make it more useable
     gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
@@ -149,6 +233,11 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     // and case-sensitive
     gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
 
+#ifdef __WXGTK20__
+    if (style & wxNO_BORDER)
+        g_object_set( GTK_ENTRY( combo->entry ), "has-frame", FALSE, NULL );
+#endif
+
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 #ifndef __WXGTK20__
@@ -182,19 +271,26 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     if (style & wxCB_READONLY)
         gtk_entry_set_editable( GTK_ENTRY( combo->entry ), FALSE );
 
-    gtk_signal_connect( GTK_OBJECT(combo->entry), "changed",
+    // "show" and "hide" events are generated when user click on the combobox button which popups a list
+    // this list is the "popwin" gtk widget
+    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo)->popwin), "hide",
+                        GTK_SIGNAL_FUNC(gtk_popup_hide_callback), (gpointer)this );
+    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo)->popwin), "show",
+                        GTK_SIGNAL_FUNC(gtk_popup_show_callback), (gpointer)this );
+
+    gtk_signal_connect_after( GTK_OBJECT(combo->entry), "changed",
       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this );
 
-    gtk_signal_connect( GTK_OBJECT(combo->list), "select-child",
+    gtk_signal_connect_after( GTK_OBJECT(combo->list), "select-child",
       GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this );
 
     SetBestSize(size); // need this too because this is a wxControlWithItems
 
     // This is required for tool bar support
-    wxSize setsize = GetSize();
-    gtk_widget_set_usize( m_widget, setsize.x, setsize.y );
-    
-    return TRUE;
+//    wxSize setsize = GetSize();
+//    gtk_widget_set_usize( m_widget, setsize.x, setsize.y );
+
+    return true;
 }
 
 wxComboBox::~wxComboBox()
@@ -256,9 +352,9 @@ int wxComboBox::DoAppend( const wxString &item )
     const int count = GetCount();
 
     if ( (int)m_clientDataList.GetCount() < count )
-    m_clientDataList.Append( (wxObject*) NULL );
+        m_clientDataList.Append( (wxObject*) NULL );
     if ( (int)m_clientObjectList.GetCount() < count )
-    m_clientObjectList.Append( (wxObject*) NULL );
+        m_clientObjectList.Append( (wxObject*) NULL );
 
     EnableEvents();
 
@@ -303,12 +399,12 @@ int wxComboBox::DoInsert( const wxString &item, int pos )
     count = GetCount();
 
     if ( (int)m_clientDataList.GetCount() < count )
-    m_clientDataList.Insert( pos, (wxObject*) NULL );
+        m_clientDataList.Insert( pos, (wxObject*) NULL );
     if ( (int)m_clientObjectList.GetCount() < count )
-    m_clientObjectList.Insert( pos, (wxObject*) NULL );
+        m_clientObjectList.Insert( pos, (wxObject*) NULL );
 
     EnableEvents();
-    
+
     InvalidateBestSize();
 
     return pos;
@@ -410,9 +506,9 @@ void wxComboBox::Delete( int n )
     node = m_clientDataList.Item( n );
     if (node)
         m_clientDataList.Erase( node );
-    
+
     EnableEvents();
-    
+
     InvalidateBestSize();
 }
 
@@ -433,13 +529,13 @@ void wxComboBox::SetString(int n, const wxString &text)
     {
         wxFAIL_MSG( wxT("wxComboBox: wrong index") );
     }
-    
+
     InvalidateBestSize();
 }
 
-int wxComboBox::FindString( const wxString &item ) const
+int wxComboBox::FindString( const wxString &item, bool bCase ) const
 {
-    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid combobox") );
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
@@ -454,7 +550,7 @@ int wxComboBox::FindString( const wxString &item ) const
 #else
         wxString str( label->label );
 #endif
-        if (item == str)
+        if (item.IsSameAs( str , bCase ) )
             return count;
 
         count++;
@@ -465,6 +561,14 @@ int wxComboBox::FindString( const wxString &item ) const
 }
 
 int wxComboBox::GetSelection() const
+{
+    // if the popup is currently opened, use the selection as it had been
+    // before it dropped down
+    return g_SelectionBeforePopup == wxID_NONE ? GetCurrentSelection()
+                                               : g_SelectionBeforePopup;
+}
+
+int wxComboBox::GetCurrentSelection() const
 {
     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
 
@@ -488,7 +592,7 @@ int wxComboBox::GetSelection() const
 
 wxString wxComboBox::GetString( int n ) const
 {
-    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid combobox") );
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
@@ -514,7 +618,7 @@ wxString wxComboBox::GetString( int n ) const
 
 wxString wxComboBox::GetStringSelection() const
 {
-    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid combobox") );
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
@@ -533,7 +637,7 @@ wxString wxComboBox::GetStringSelection() const
 
     wxFAIL_MSG( wxT("wxComboBox: no selection") );
 
-    return wxT("");
+    return wxEmptyString;
 }
 
 int wxComboBox::GetCount() const
@@ -562,16 +666,6 @@ void wxComboBox::SetSelection( int n )
     EnableEvents();
 }
 
-bool wxComboBox::SetStringSelection( const wxString &string )
-{
-    wxCHECK_MSG( m_widget != NULL, false, wxT("invalid combobox") );
-
-    int res = FindString( string );
-    if (res == -1) return false;
-    SetSelection( res );
-    return true;
-}
-
 wxString wxComboBox::GetValue() const
 {
     GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry );
@@ -594,10 +688,10 @@ void wxComboBox::SetValue( const wxString& value )
     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-    wxString tmp = wxT("");
+    wxString tmp;
     if (!value.IsNull()) tmp = value;
     gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( tmp ) );
-    
+
     InvalidateBestSize();
 }
 
@@ -625,6 +719,63 @@ void wxComboBox::Paste()
     gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG);
 }
 
+void wxComboBox::Undo()
+{
+    // TODO
+}
+
+void wxComboBox::Redo()
+{
+    // TODO
+}
+
+void wxComboBox::SelectAll()
+{
+    SetSelection(0, GetLastPosition());
+}
+
+bool wxComboBox::CanUndo() const
+{
+    // TODO
+    return false;
+}
+
+bool wxComboBox::CanRedo() const
+{
+    // TODO
+    return false;
+}
+
+bool wxComboBox::HasSelection() const
+{
+    long from, to;
+    GetSelection(&from, &to);
+    return from != to;
+}
+
+bool wxComboBox::CanCopy() const
+{
+    // Can copy if there's a selection
+    return HasSelection();
+}
+
+bool wxComboBox::CanCut() const
+{
+    return CanCopy() && IsEditable();
+}
+
+bool wxComboBox::CanPaste() const
+{
+    // TODO: check for text on the clipboard
+    return IsEditable() ;
+}
+
+bool wxComboBox::IsEditable() const
+{
+    return !HasFlag(wxCB_READONLY);
+}
+
+
 void wxComboBox::SetInsertionPoint( long pos )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
@@ -641,7 +792,7 @@ long wxComboBox::GetInsertionPoint() const
     return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry );
 }
 
-long wxComboBox::GetLastPosition() const
+wxTextPos wxComboBox::GetLastPosition() const
 {
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     int pos = GTK_ENTRY(entry)->text_length;
@@ -671,6 +822,23 @@ void wxComboBox::SetSelection( long from, long to )
     gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
 }
 
+void wxComboBox::GetSelection( long* from, long* to ) const
+{
+    if (IsEditable())
+    {
+        GtkEditable *editable = GTK_EDITABLE(GTK_COMBO(m_widget)->entry);
+#ifdef __WXGTK20__
+        gint start, end;
+        gtk_editable_get_selection_bounds(editable, & start, & end);
+        *from = start;
+        *to = end;
+#else
+        *from = (long) editable->selection_start_pos;
+        *to = (long) editable->selection_end_pos;
+#endif
+    }
+}
+
 void wxComboBox::SetEditable( bool editable )
 {
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
@@ -682,12 +850,12 @@ void wxComboBox::OnChar( wxKeyEvent &event )
     if ( event.GetKeyCode() == WXK_RETURN )
     {
         // GTK automatically selects an item if its in the list
-        wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, GetId());
-        event.SetString( GetValue() );
-        event.SetInt( GetSelection() );
-        event.SetEventObject( this );
+        wxCommandEvent eventEnter(wxEVT_COMMAND_TEXT_ENTER, GetId());
+        eventEnter.SetString( GetValue() );
+        eventEnter.SetInt( GetSelection() );
+        eventEnter.SetEventObject( this );
 
-        if (!GetEventHandler()->ProcessEvent( event ))
+        if (!GetEventHandler()->ProcessEvent( eventEnter ))
         {
             // This will invoke the dialog default action, such
             // as the clicking the default button.
@@ -701,7 +869,7 @@ void wxComboBox::OnChar( wxKeyEvent &event )
                 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
 
                 if (window->default_widget)
-                    gtk_widget_activate (window->default_widget);
+                        gtk_widget_activate (window->default_widget);
             }
         }
 
@@ -723,9 +891,9 @@ void wxComboBox::DisableEvents()
 
 void wxComboBox::EnableEvents()
 {
-    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->list), "select-child",
+    gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(m_widget)->list), "select-child",
       GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this );
-    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
+    gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this );
 }
 
@@ -807,4 +975,81 @@ wxComboBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
     return GetDefaultAttributesFromGTKWidget(gtk_combo_new, true);
 }
 
+// ----------------------------------------------------------------------------
+// standard event handling
+// ----------------------------------------------------------------------------
+
+void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event))
+{
+    Cut();
+}
+
+void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+    Copy();
+}
+
+void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+    Paste();
+}
+
+void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event))
+{
+    Undo();
+}
+
+void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event))
+{
+    Redo();
+}
+
+void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event))
+{
+    long from, to;
+    GetSelection(& from, & to);
+    if (from != -1 && to != -1)
+        Remove(from, to);
+}
+
+void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event))
+{
+    SetSelection(-1, -1);
+}
+
+void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCut() );
+}
+
+void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCopy() );
+}
+
+void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+    event.Enable( CanPaste() );
+}
+
+void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanUndo() );
+}
+
+void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanRedo() );
+}
+
+void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event)
+{
+    event.Enable(HasSelection() && IsEditable()) ;
+}
+
+void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event)
+{
+    event.Enable(GetLastPosition() > 0);
+}
+
 #endif