Fixed a crash when GetMonthControl returns NULL

[wxWidgets.git] / src / gtk / combobox.cpp

diff --git a/src/gtk/combobox.cpp b/src/gtk/combobox.cpp
index 74ca53348b00c76e6deb9859685e50964f578ece..3cd992283dc03bf70c57b9f640342acd514416e3 100644 (file)
--- a/src/gtk/combobox.cpp
+++ b/src/gtk/combobox.cpp
@@ -18,8 +18,9 @@
 #include "wx/settings.h"
 #include "wx/intl.h"
 
 #include "wx/settings.h"
 #include "wx/intl.h"
 

-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include "wx/textctrl.h"    // for wxEVT_COMMAND_TEXT_UPDATED
+
+#include "wx/gtk/private.h"

 
 //-----------------------------------------------------------------------------
 // idle system
 
 //-----------------------------------------------------------------------------
 // idle system


@@ -55,8 +56,18 @@ gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
 
     combo->m_alreadySent = TRUE;
 
 
     combo->m_alreadySent = TRUE;
 

+    int curSelection = combo->GetSelection();
+
+    if (combo->m_prevSelection != curSelection)
+    {
+        GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
+        gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
+    }
+
+    combo->m_prevSelection = curSelection;
+

     wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
     wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );

-    event.SetInt( combo->GetSelection() );
+    event.SetInt( curSelection );

     event.SetString( combo->GetStringSelection() );
     event.SetEventObject( combo );
 
     event.SetString( combo->GetStringSelection() );
     event.SetEventObject( combo );
 


@@ -100,32 +111,32 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     m_alreadySent = FALSE;
     m_needParent = TRUE;
     m_acceptsFocus = TRUE;
     m_alreadySent = FALSE;
     m_needParent = TRUE;
     m_acceptsFocus = TRUE;

+    m_prevSelection = 0;

 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {

-        wxFAIL_MSG( T("wxComboBox creation failed") );
-       return FALSE;
+        wxFAIL_MSG( wxT("wxComboBox creation failed") );
+        return FALSE;

     }
 
     m_widget = gtk_combo_new();
 
     // make it more useable
     }
 
     m_widget = gtk_combo_new();
 
     // make it more useable

-    gtk_combo_set_use_arrows_always(GTK_COMBO(m_widget), TRUE);
+    gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
+    
+    // and case-sensitive
+    gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );

 
 

-    wxSize newSize = size;
-    if (newSize.x == -1)
-        newSize.x = 100;
-    if (newSize.y == -1)
-        newSize.y = 26;
-    SetSize( newSize.x, newSize.y );

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 

+    gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
+

     for (int i = 0; i < n; i++)
     {
         /* don't send first event, which GTK sends aways when
     for (int i = 0; i < n; i++)
     {
         /* don't send first event, which GTK sends aways when

-          inserting the first item */
+           inserting the first item */

         m_alreadySent = TRUE;
 
         GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );
         m_alreadySent = TRUE;
 
         GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );


@@ -142,6 +153,8 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     }
 
     m_parent->DoAddChild( this );
     }
 
     m_parent->DoAddChild( this );

+    
+    m_focusWidget = GTK_COMBO(m_widget)->entry;

 
     PostCreation();
 
 
     PostCreation();
 


@@ -155,9 +168,25 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 
     gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 

-    SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
+    wxSize size_best( DoGetBestSize() );
+    wxSize new_size( size );
+    if (new_size.x == -1)
+        new_size.x = size_best.x;
+    if (new_size.y == -1)
+        new_size.y = size_best.y;
+    if (new_size.y > size_best.y)
+        new_size.y = size_best.y;
+    if ((new_size.x != size.x) || (new_size.y != size.y))
+    {
+        SetSize( new_size.x, new_size.y );
+        
+        // This is required for tool bar support
+        gtk_widget_set_usize( m_widget, new_size.x, new_size.y );
+    }
+
+
+    SetBackgroundColour( wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW ) );

     SetForegroundColour( parent->GetForegroundColour() );
     SetForegroundColour( parent->GetForegroundColour() );

-    SetFont( parent->GetFont() );

 
     Show( TRUE );
 
 
     Show( TRUE );
 


@@ -180,7 +209,7 @@ wxComboBox::~wxComboBox()
 
 void wxComboBox::AppendCommon( const wxString &item )
 {
 
 void wxComboBox::AppendCommon( const wxString &item )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 


@@ -228,7 +257,7 @@ void wxComboBox::Append( const wxString &item, wxClientData *clientData )
 
 void wxComboBox::SetClientData( int n, void* clientData )
 {
 
 void wxComboBox::SetClientData( int n, void* clientData )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     wxNode *node = m_clientDataList.Nth( n );
     if (!node) return;
 
     wxNode *node = m_clientDataList.Nth( n );
     if (!node) return;


@@ -238,7 +267,7 @@ void wxComboBox::SetClientData( int n, void* clientData )
 
 void* wxComboBox::GetClientData( int n )
 {
 
 void* wxComboBox::GetClientData( int n )
 {

-    wxCHECK_MSG( m_widget != NULL, NULL, T("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );

 
     wxNode *node = m_clientDataList.Nth( n );
     if (!node) return NULL;
 
     wxNode *node = m_clientDataList.Nth( n );
     if (!node) return NULL;


@@ -248,7 +277,7 @@ void* wxComboBox::GetClientData( int n )
 
 void wxComboBox::SetClientObject( int n, wxClientData* clientData )
 {
 
 void wxComboBox::SetClientObject( int n, wxClientData* clientData )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     wxNode *node = m_clientObjectList.Nth( n );
     if (!node) return;
 
     wxNode *node = m_clientObjectList.Nth( n );
     if (!node) return;


@@ -261,9 +290,9 @@ void wxComboBox::SetClientObject( int n, wxClientData* clientData )
 
 wxClientData* wxComboBox::GetClientObject( int n )
 {
 
 wxClientData* wxComboBox::GetClientObject( int n )
 {

-    wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, T("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );

 
 

-    wxNode *node = m_clientDataList.Nth( n );
+    wxNode *node = m_clientObjectList.Nth( n );

     if (!node) return (wxClientData*) NULL;
 
     return (wxClientData*) node->Data();
     if (!node) return (wxClientData*) NULL;
 
     return (wxClientData*) node->Data();


@@ -271,7 +300,7 @@ wxClientData* wxComboBox::GetClientObject( int n )
 
 void wxComboBox::Clear()
 {
 
 void wxComboBox::Clear()
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
     gtk_list_clear_items( GTK_LIST(list), 0, Number() );
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
     gtk_list_clear_items( GTK_LIST(list), 0, Number() );


@@ -290,7 +319,7 @@ void wxComboBox::Clear()
 
 void wxComboBox::Delete( int n )
 {
 
 void wxComboBox::Delete( int n )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
 
 
     GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
 


@@ -298,7 +327,7 @@ void wxComboBox::Delete( int n )
 
     if (!child)
     {
 
     if (!child)
     {

-        wxFAIL_MSG(T("wrong index"));
+        wxFAIL_MSG(wxT("wrong index"));

         return;
     }
 
         return;
     }
 


@@ -323,7 +352,7 @@ void wxComboBox::Delete( int n )
 
 int wxComboBox::FindString( const wxString &item )
 {
 
 int wxComboBox::FindString( const wxString &item )
 {

-    wxCHECK_MSG( m_widget != NULL, -1, T("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 


@@ -344,7 +373,7 @@ int wxComboBox::FindString( const wxString &item )
 
 int wxComboBox::GetSelection() const
 {
 
 int wxComboBox::GetSelection() const
 {

-    wxCHECK_MSG( m_widget != NULL, -1, T("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 


@@ -366,7 +395,7 @@ int wxComboBox::GetSelection() const
 
 wxString wxComboBox::GetString( int n ) const
 {
 
 wxString wxComboBox::GetString( int n ) const
 {

-    wxCHECK_MSG( m_widget != NULL, T(""), T("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 


@@ -380,7 +409,7 @@ wxString wxComboBox::GetString( int n ) const
     }
     else
     {
     }
     else
     {

-        wxFAIL_MSG( T("wxComboBox: wrong index") );
+        wxFAIL_MSG( wxT("wxComboBox: wrong index") );

     }
 
     return str;
     }
 
     return str;


@@ -388,7 +417,7 @@ wxString wxComboBox::GetString( int n ) const
 
 wxString wxComboBox::GetStringSelection() const
 {
 
 wxString wxComboBox::GetStringSelection() const
 {

-    wxCHECK_MSG( m_widget != NULL, T(""), T("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 


@@ -400,14 +429,14 @@ wxString wxComboBox::GetStringSelection() const
         return tmp;
     }
 
         return tmp;
     }
 

-    wxFAIL_MSG( T("wxComboBox: no selection") );
+    wxFAIL_MSG( wxT("wxComboBox: no selection") );

 
 

-    return T("");
+    return wxT("");

 }
 
 int wxComboBox::Number() const
 {
 }
 
 int wxComboBox::Number() const
 {

-    wxCHECK_MSG( m_widget != NULL, 0, T("invalid combobox") );
+    wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 


@@ -419,19 +448,21 @@ int wxComboBox::Number() const
 
 void wxComboBox::SetSelection( int n )
 {
 
 void wxComboBox::SetSelection( int n )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     DisableEvents();
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
     DisableEvents();
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;

+    gtk_list_unselect_item( GTK_LIST(list), m_prevSelection );

     gtk_list_select_item( GTK_LIST(list), n );
     gtk_list_select_item( GTK_LIST(list), n );

+    m_prevSelection = n;

 
     EnableEvents();
 }
 
 void wxComboBox::SetStringSelection( const wxString &string )
 {
 
     EnableEvents();
 }
 
 void wxComboBox::SetStringSelection( const wxString &string )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     int res = FindString( string );
     if (res == -1) return;
 
     int res = FindString( string );
     if (res == -1) return;


@@ -447,53 +478,41 @@ wxString wxComboBox::GetValue() const
 
 void wxComboBox::SetValue( const wxString& value )
 {
 
 void wxComboBox::SetValue( const wxString& value )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;

-    wxString tmp = T("");
+    wxString tmp = wxT("");

     if (!value.IsNull()) tmp = value;
     gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
 }
 
 void wxComboBox::Copy()
 {
     if (!value.IsNull()) tmp = value;
     gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
 }
 
 void wxComboBox::Copy()
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;

-#if (GTK_MINOR_VERSION > 0)
-    gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
-#else
-    gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
-#endif
+    gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );

 }
 
 void wxComboBox::Cut()
 {
 }
 
 void wxComboBox::Cut()
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;

-#if (GTK_MINOR_VERSION > 0)
-    gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
-#else
-    gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
-#endif
+    gtk_editable_cut_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );

 }
 
 void wxComboBox::Paste()
 {
 }
 
 void wxComboBox::Paste()
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;

-#if (GTK_MINOR_VERSION > 0)
-    gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
-#else
-    gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
-#endif
+    gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG);

 }
 
 void wxComboBox::SetInsertionPoint( long pos )
 {
 }
 
 void wxComboBox::SetInsertionPoint( long pos )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );


@@ -501,15 +520,14 @@ void wxComboBox::SetInsertionPoint( long pos )
 
 void wxComboBox::SetInsertionPointEnd()
 {
 
 void wxComboBox::SetInsertionPointEnd()
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     SetInsertionPoint( -1 );
 }
 
 long wxComboBox::GetInsertionPoint() const
 {
 
     SetInsertionPoint( -1 );
 }
 
 long wxComboBox::GetInsertionPoint() const
 {

-    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-    return (long) GTK_EDITABLE(entry)->current_pos;
+    return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry );

 }
 
 long wxComboBox::GetLastPosition() const
 }
 
 long wxComboBox::GetLastPosition() const


@@ -521,7 +539,7 @@ long wxComboBox::GetLastPosition() const
 
 void wxComboBox::Replace( long from, long to, const wxString& value )
 {
 
 void wxComboBox::Replace( long from, long to, const wxString& value )
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

     // FIXME: not quite sure how to do this method right in multibyte mode
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     // FIXME: not quite sure how to do this method right in multibyte mode
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;


@@ -533,7 +551,7 @@ void wxComboBox::Replace( long from, long to, const wxString& value )
 
 void wxComboBox::Remove(long from, long to)
 {
 
 void wxComboBox::Remove(long from, long to)
 {

-    wxCHECK_RET( m_widget != NULL, T("invalid combobox") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );


@@ -574,6 +592,7 @@ void wxComboBox::OnChar( wxKeyEvent &event )
             if ( FindString(value) == wxNOT_FOUND )
             {
                 Append(value);
             if ( FindString(value) == wxNOT_FOUND )
             {
                 Append(value);

+                SetStringSelection(value);

 
                 // and generate the selected event for it
                 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
 
                 // and generate the selected event for it
                 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );


@@ -582,7 +601,26 @@ void wxComboBox::OnChar( wxKeyEvent &event )
                 event.SetEventObject( this );
                 GetEventHandler()->ProcessEvent( event );
             }
                 event.SetEventObject( this );
                 GetEventHandler()->ProcessEvent( event );
             }

-            //else: do nothing, this will open the listbox
+            else
+            {
+                // This will invoke the dialog default action, such
+                // as the clicking the default button.
+    
+                wxWindow *top_frame = m_parent;
+                while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
+                top_frame = top_frame->GetParent();
+        
+                if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
+                {
+                    GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
+
+                    if (window->default_widget)
+                    {
+                        gtk_widget_activate (window->default_widget);
+                        return;
+                    }
+                }
+            }

         }
     }
 
         }
     }
 


@@ -619,13 +657,13 @@ void wxComboBox::OnSize( wxSizeEvent &event )
 {
     event.Skip();
 
 {
     event.Skip();
 

-    return;
-
+#if 0

     int w = 21;
     gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
 
     gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
     gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
     int w = 21;
     gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
 
     gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
     gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );

+#endif // 0

 }
 
 void wxComboBox::ApplyWidgetStyle()
 }
 
 void wxComboBox::ApplyWidgetStyle()


@@ -660,4 +698,31 @@ bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
              (window == GTK_COMBO(m_widget)->button->window ) );
 }
 
              (window == GTK_COMBO(m_widget)->button->window ) );
 }
 

+wxSize wxComboBox::DoGetBestSize() const
+{
+    wxSize ret( wxControl::DoGetBestSize() );
+
+    // we know better our horizontal extent: it depends on the longest string
+    // in the combobox
+    ret.x = 0;
+    if ( m_widget )
+    {
+        GdkFont *font = m_font.GetInternalFont();
+
+        wxCoord width;
+        size_t count = Number();
+        for ( size_t n = 0; n < count; n++ )
+        {
+            width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
+            if ( width > ret.x )
+                ret.x = width;
+        }
+    }
+
+    // empty combobox should have some reasonable default size too
+    if ( ret.x < 100 )
+        ret.x = 100;
+    return ret;
+}
+

 #endif
 #endif