More doxygen topic overview cleanup.

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

diff --git a/src/gtk1/combobox.cpp b/src/gtk1/combobox.cpp
index 54aea8e64706e4f79e59698d2fb271692fd75a58..352310b904a13448755e77d42f6f11b11c3c9ed9 100644 (file)
--- a/src/gtk1/combobox.cpp
+++ b/src/gtk1/combobox.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        combobox.cpp
+// Name:        src/gtk1/combobox.cpp

 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$


@@ -7,62 +7,163 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "combobox.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_COMBOBOX

 
 #include "wx/combobox.h"
 
 
 #include "wx/combobox.h"
 

-#include <wx/intl.h>
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/settings.h"
+    #include "wx/textctrl.h"    // for wxEVT_COMMAND_TEXT_UPDATED
+    #include "wx/arrstr.h"
+#endif

 
 

-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include "wx/gtk1/private.h"
+
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;

 
 //-----------------------------------------------------------------------------
 // data
 //-----------------------------------------------------------------------------
 
 extern bool   g_blockEventsOnDrag;
 
 //-----------------------------------------------------------------------------
 // data
 //-----------------------------------------------------------------------------
 
 extern bool   g_blockEventsOnDrag;

+static int    g_SelectionBeforePopup = wxID_NONE; // this means the popup is hidden

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-// "select"
+//  "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
 static void

-gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )

 {
 {

-    if (!combo->HasVMT())
-        return;
+    if (g_isIdle) wxapp_install_idle_handler();

 
 

-    if (g_blockEventsOnDrag)
-        return;
-
-    if (combo->m_alreadySent)
+    if (combo->m_ignoreNextUpdate)

     {
     {

-        combo->m_alreadySent = FALSE;
+        combo->m_ignoreNextUpdate = false;

         return;
     }
 
         return;
     }
 

-    combo->m_alreadySent = TRUE;
+    if (!combo->m_hasVMT) return;

 
 

-    wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
-    event.SetInt( combo->GetSelection() );
-    event.SetString( combo->GetStringSelection() );
+    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
+    event.SetString( combo->GetValue() );

     event.SetEventObject( combo );
     event.SetEventObject( combo );

-    combo->GetEventHandler()->ProcessEvent( event );
+    combo->HandleWindowEvent( event );
+}
+}
+
+extern "C" {
+static void
+gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo))
+{
+}
+}
+
+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.
+    const int curSelection = combo->GetCurrentSelection();
+
+    const bool hasChanged = curSelection != g_SelectionBeforePopup;
+
+    // reset the selection flag to value meaning that it is hidden and do it
+    // now, before generating the events, so that GetSelection() returns the
+    // new value from the event handler
+    g_SelectionBeforePopup = wxID_NONE;
+
+    if ( hasChanged )
+    {
+        wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
+        event.SetInt( curSelection );
+        event.SetString( combo->GetStringSelection() );
+        event.SetEventObject( combo );
+        combo->HandleWindowEvent( 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->HandleWindowEvent( event2 );
+    }
+}
+}
+
+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"
+// "select-child" - click/cursor get select-child, changed, select-child

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

+extern "C" {

 static void
 static void

-gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo )

 {
 {

-    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
-    event.SetString( combo->GetValue() );
-    event.SetEventObject( combo );
-    combo->GetEventHandler()->ProcessEvent( event );
+    if (g_isIdle) wxapp_install_idle_handler();
+
+    if (!combo->m_hasVMT) return;
+
+    if (g_blockEventsOnDrag) return;
+
+    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->HandleWindowEvent( 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->HandleWindowEvent( event2 );
+    }
+}

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


@@ -74,202 +175,253 @@ IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
     EVT_SIZE(wxComboBox::OnSize)
     EVT_CHAR(wxComboBox::OnChar)
 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()
 
 END_EVENT_TABLE()
 

+bool wxComboBox::Create( wxWindow *parent, wxWindowID id,
+                         const wxString& value,
+                         const wxPoint& pos, const wxSize& size,
+                         const wxArrayString& choices,
+                         long style, const wxValidator& validator,
+                         const wxString& name )
+{
+    wxCArrayString chs(choices);
+
+    return Create( parent, id, value, pos, size, chs.GetCount(),
+                   chs.GetStrings(), style, validator, name );
+}
+

 bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
                          const wxPoint& pos, const wxSize& size,
                          int n, const wxString choices[],
                          long style, const wxValidator& validator,
                          const wxString& name )
 {
 bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
                          const wxPoint& pos, const wxSize& size,
                          int n, const wxString choices[],
                          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;

 
 

-    PreCreation( parent, id, pos, size, style, name );
-
-    SetValidator( validator );
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, validator, name ))
+    {
+        wxFAIL_MSG( wxT("wxComboBox creation failed") );
+        return false;
+    }

 
     m_widget = gtk_combo_new();
 
     m_widget = gtk_combo_new();

+    GtkCombo *combo = GTK_COMBO(m_widget);
+
+    // Disable GTK's broken events ...
+    gtk_signal_disconnect( GTK_OBJECT(combo->entry), combo->entry_change_id );
+    // ... and add surrogate handler.
+    combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed",
+                  (GtkSignalFunc) gtk_dummy_callback, combo);

 
     // make it more useable
 
     // 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 );

 
 

-    wxSize newSize = size;
-    if (newSize.x == -1)
-        newSize.x = 100;
-    if (newSize.y == -1)
-        newSize.y = 26;
-    SetSize( newSize.x, newSize.y );
+    // and case-sensitive
+    gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );

 
     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++)
     {
     for (int i = 0; i < n; i++)
     {

-        GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );
+        GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( choices[i] ) );

 
         m_clientDataList.Append( (wxObject*)NULL );
         m_clientObjectList.Append( (wxObject*)NULL );
 
         gtk_container_add( GTK_CONTAINER(list), list_item );
 
 
         m_clientDataList.Append( (wxObject*)NULL );
         m_clientObjectList.Append( (wxObject*)NULL );
 
         gtk_container_add( GTK_CONTAINER(list), list_item );
 

-        gtk_widget_realize( list_item );
-        gtk_widget_realize( GTK_BIN(list_item)->child );
-

         gtk_widget_show( list_item );
         gtk_widget_show( list_item );

-
-        gtk_signal_connect( GTK_OBJECT(list_item), "select",
-        GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );

     }
 
     }
 

-    m_parent->AddChild( this );
-
-    (m_parent->m_insertCallback)( m_parent, this );
+    m_parent->DoAddChild( this );

 
 

-    PostCreation();
+    m_focusWidget = combo->entry;

 
 

-    ConnectWidget( GTK_COMBO(m_widget)->button );
+    PostCreation(size);

 
 

-    if (!value.IsNull()) SetValue( value );
+    ConnectWidget( combo->button );

 
 

-    gtk_widget_realize( GTK_COMBO(m_widget)->list );
-    gtk_widget_realize( GTK_COMBO(m_widget)->entry );
-    gtk_widget_realize( GTK_COMBO(m_widget)->button );
+    // MSW's combo box shows the value and the selection is -1
+    gtk_entry_set_text( GTK_ENTRY(combo->entry), wxGTK_CONV(value) );
+    gtk_list_unselect_all( GTK_LIST(combo->list) );

 
     if (style & wxCB_READONLY)
 
     if (style & wxCB_READONLY)

-        gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
+        gtk_entry_set_editable( GTK_ENTRY( combo->entry ), FALSE );

 
 

-    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
-      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+    // "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 );

 
 

-    SetBackgroundColour( parent->GetBackgroundColour() );
-    SetForegroundColour( parent->GetForegroundColour() );
-    SetFont( parent->GetFont() );
+    gtk_signal_connect_after( GTK_OBJECT(combo->entry), "changed",
+      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this );

 
 

-    Show( TRUE );
+    gtk_signal_connect_after( GTK_OBJECT(combo->list), "select-child",
+      GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this );

 
 

-    return TRUE;
+    SetInitialSize(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;

 }
 
 wxComboBox::~wxComboBox()
 {
 }
 
 wxComboBox::~wxComboBox()
 {

-    wxNode *node = m_clientDataList.First();
+    wxList::compatibility_iterator node = m_clientObjectList.GetFirst();

     while (node)
     {
     while (node)
     {

-        wxClientData *cd = (wxClientData*)node->Data();
+        wxClientData *cd = (wxClientData*)node->GetData();

         if (cd) delete cd;
         if (cd) delete cd;

-        node = node->Next();
+        node = node->GetNext();

     }
     }

+    m_clientObjectList.Clear();
+

     m_clientDataList.Clear();
 }
 
     m_clientDataList.Clear();
 }
 

-void wxComboBox::AppendCommon( const wxString &item )
+void wxComboBox::SetFocus()

 {
 {

-    wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
-
-    GtkWidget *list = GTK_COMBO(m_widget)->list;
+    if ( m_hasFocus )
+    {
+        // don't do anything if we already have focus
+        return;
+    }

 
 

-    GtkWidget *list_item = gtk_list_item_new_with_label( item.mbc_str() );
+    gtk_widget_grab_focus( m_focusWidget );
+}

 
 

-    gtk_signal_connect( GTK_OBJECT(list_item), "select",
-      GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
+int wxComboBox::DoInsertItems(const wxArrayStringsAdapter& items,
+                              unsigned int pos,
+                              void **clientData,
+                              wxClientDataType type)
+{
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );

 
 

-    gtk_container_add( GTK_CONTAINER(list), list_item );
+    DisableEvents();

 
 

-    if (m_widgetStyle) ApplyWidgetStyle();
+    GtkWidget *list = GTK_COMBO(m_widget)->list;

 
 

-    gtk_widget_show( list_item );
-}
+    GtkRcStyle *style = CreateWidgetStyle();

 
 

-void wxComboBox::Append( const wxString &item )
-{
-    m_clientDataList.Append( (wxObject*) NULL );
-    m_clientObjectList.Append( (wxObject*) NULL );
+    const unsigned int count = items.GetCount();
+    for( unsigned int i = 0; i < count; ++i, ++pos )
+    {
+        GtkWidget *
+            list_item = gtk_list_item_new_with_label( wxGTK_CONV( items[i] ) );

 
 

-    AppendCommon( item );
-}
+        if ( pos == GetCount() )
+        {
+            gtk_container_add( GTK_CONTAINER(list), list_item );
+        }
+        else // insert, not append
+        {
+            GList *gitem_list = g_list_alloc ();
+            gitem_list->data = list_item;
+            gtk_list_insert_items( GTK_LIST (list), gitem_list, pos );
+        }

 
 

-void wxComboBox::Append( const wxString &item, void *clientData )
-{
-    m_clientDataList.Append( (wxObject*) clientData );
-    m_clientObjectList.Append( (wxObject*)NULL );
+        if (GTK_WIDGET_REALIZED(m_widget))
+        {
+            gtk_widget_realize( list_item );
+            gtk_widget_realize( GTK_BIN(list_item)->child );

 
 

-    AppendCommon( item );
-}
+            if (style)
+            {
+                gtk_widget_modify_style( GTK_WIDGET( list_item ), style );
+                GtkBin *bin = GTK_BIN( list_item );
+                GtkWidget *label = GTK_WIDGET( bin->child );
+                gtk_widget_modify_style( label, style );
+            }

 
 

-void wxComboBox::Append( const wxString &item, wxClientData *clientData )
-{
-    m_clientDataList.Append( (wxObject*) NULL );
-    m_clientObjectList.Append( (wxObject*) clientData );
+        }

 
 

-    AppendCommon( item );
-}
+        gtk_widget_show( list_item );

 
 

-void wxComboBox::SetClientData( int n, void* clientData )
-{
-    wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
+        if ( m_clientDataList.GetCount() < GetCount() )
+            m_clientDataList.Insert( pos, (wxObject*) NULL );
+        if ( m_clientObjectList.GetCount() < GetCount() )
+            m_clientObjectList.Insert( pos, (wxObject*) NULL );

 
 

-    wxNode *node = m_clientDataList.Nth( n );
-    if (!node) return;
+        AssignNewItemClientData(pos, clientData, i, type);
+    }

 
 

-    node->SetData( (wxObject*) clientData );
-}
+    if ( style )
+        gtk_rc_style_unref( style );

 
 

-void* wxComboBox::GetClientData( int n )
-{
-    wxCHECK_MSG( m_widget != NULL, NULL, _T("invalid combobox") );
+    EnableEvents();

 
 

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

 
 

-    return node->Data();
+    return pos - 1;

 }
 
 }
 

-void wxComboBox::SetClientObject( int n, wxClientData* clientData )
+void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData)

 {
 {

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

 
 

-    wxNode *node = m_clientObjectList.Nth( n );
+    wxList::compatibility_iterator node = m_clientDataList.Item( n );

     if (!node) return;
 
     if (!node) return;
 

-    wxClientData *cd = (wxClientData*) node->Data();
-    if (cd) delete cd;
-

     node->SetData( (wxObject*) clientData );
 }
 
     node->SetData( (wxObject*) clientData );
 }
 

-wxClientData* wxComboBox::GetClientObject( int n )
+void* wxComboBox::DoGetItemClientData(unsigned int n) const

 {
 {

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

 
 

-    wxNode *node = m_clientDataList.Nth( n );
-    if (!node) return (wxClientData*) NULL;
+    wxList::compatibility_iterator node = m_clientDataList.Item( n );

 
 

-    return (wxClientData*) node->Data();
+    return node ? node->GetData() : NULL;

 }
 
 }
 

-void wxComboBox::Clear()
+void wxComboBox::DoClear()

 {
 {

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

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

-    gtk_list_clear_items( GTK_LIST(list), 0, Number() );
+    gtk_list_clear_items( GTK_LIST(list), 0, (int)GetCount() );

 
 

-    wxNode *node = m_clientObjectList.First();
-    while (node)
-    {
-        wxClientData *cd = (wxClientData*)node->Data();
-        if (cd) delete cd;
-        node = node->Next();
-    }

     m_clientObjectList.Clear();
 
     m_clientDataList.Clear();
     m_clientObjectList.Clear();
 
     m_clientDataList.Clear();

+
+    EnableEvents();
+
+    InvalidateBestSize();

 }
 
 }
 

-void wxComboBox::Delete( int n )
+void wxComboBox::DoDeleteOneItem(unsigned 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 );
 


@@ -277,32 +429,55 @@ void wxComboBox::Delete( int n )
 
     if (!child)
     {
 
     if (!child)
     {

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

         return;
     }
 
         return;
     }
 

+    DisableEvents();
+

     GList *list = g_list_append( (GList*) NULL, child->data );
     gtk_list_remove_items( listbox, list );
     g_list_free( list );
 
     GList *list = g_list_append( (GList*) NULL, child->data );
     gtk_list_remove_items( listbox, list );
     g_list_free( list );
 

-    wxNode *node = m_clientObjectList.Nth( n );
+    wxList::compatibility_iterator node = m_clientObjectList.Item( n );

     if (node)
     {
     if (node)
     {

-        wxClientData *cd = (wxClientData*)node->Data();
-        if (cd) delete cd;
-        m_clientObjectList.DeleteNode( node );
+        m_clientObjectList.Erase( node );

     }
 
     }
 

-    node = m_clientDataList.Nth( n );
+    node = m_clientDataList.Item( n );

     if (node)
     if (node)

+        m_clientDataList.Erase( node );
+
+    EnableEvents();
+
+    InvalidateBestSize();
+}
+
+void wxComboBox::SetString(unsigned int n, const wxString &text)
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    GList *child = g_list_nth( GTK_LIST(list)->children, n );
+    if (child)

     {
     {

-        m_clientDataList.DeleteNode( node );
+        GtkBin *bin = GTK_BIN( child->data );
+        GtkLabel *label = GTK_LABEL( bin->child );
+        gtk_label_set_text(label, wxGTK_CONV(text));
+    }
+    else
+    {
+        wxFAIL_MSG( wxT("wxComboBox: wrong index") );

     }
     }

+
+    InvalidateBestSize();

 }
 
 }
 

-int wxComboBox::FindString( const wxString &item )
+int wxComboBox::FindString( const wxString &item, bool bCase ) const

 {
 {

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

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


@@ -312,8 +487,10 @@ int wxComboBox::FindString( const wxString &item )
     {
         GtkBin *bin = GTK_BIN( child->data );
         GtkLabel *label = GTK_LABEL( bin->child );
     {
         GtkBin *bin = GTK_BIN( child->data );
         GtkLabel *label = GTK_LABEL( bin->child );

-        if (item == label->label)
+        wxString str( label->label );
+        if (item.IsSameAs( str , bCase ) )

             return count;
             return count;

+

         count++;
         child = child->next;
     }
         count++;
         child = child->next;
     }


@@ -323,7 +500,15 @@ int wxComboBox::FindString( const wxString &item )
 
 int wxComboBox::GetSelection() const
 {
 
 int wxComboBox::GetSelection() const
 {

-    wxCHECK_MSG( m_widget != NULL, -1, _T("invalid combobox") );
+    // 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") );

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


@@ -340,14 +525,12 @@ int wxComboBox::GetSelection() const
         }
     }
 
         }
     }
 

-    wxFAIL_MSG( _T("wxComboBox: no selection") );
-
-    return -1;
+    return wxNOT_FOUND;

 }
 
 }
 

-wxString wxComboBox::GetString( int n ) const
+wxString wxComboBox::GetString(unsigned int n) const

 {
 {

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

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


@@ -357,11 +540,11 @@ wxString wxComboBox::GetString( int n ) const
     {
         GtkBin *bin = GTK_BIN( child->data );
         GtkLabel *label = GTK_LABEL( bin->child );
     {
         GtkBin *bin = GTK_BIN( child->data );
         GtkLabel *label = GTK_LABEL( bin->child );

-        str = label->label;
+        str = wxString( label->label );

     }
     else
     {
     }
     else
     {

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

     }
 
     return str;
     }
 
     return str;


@@ -369,7 +552,7 @@ 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, wxEmptyString, wxT("invalid combobox") );

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


@@ -377,119 +560,180 @@ wxString wxComboBox::GetStringSelection() const
     if (selection)
     {
         GtkBin *bin = GTK_BIN( selection->data );
     if (selection)
     {
         GtkBin *bin = GTK_BIN( selection->data );

-        wxString tmp = GTK_LABEL( bin->child )->label;
+        GtkLabel *label = GTK_LABEL( bin->child );
+        wxString tmp( label->label );

         return tmp;
     }
 
         return tmp;
     }
 

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

 
 

-    return _T("");
+    return wxEmptyString;

 }
 
 }
 

-int wxComboBox::Number() const
+unsigned int wxComboBox::GetCount() 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;
 
     GList *child = GTK_LIST(list)->children;
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
     GList *child = GTK_LIST(list)->children;

-    int count = 0;
+    unsigned int count = 0;

     while (child) { count++; child = child->next; }
     return count;
 }
 
 void wxComboBox::SetSelection( int n )
 {
     while (child) { count++; child = child->next; }
     return count;
 }
 
 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;
 
     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 )
+wxString wxComboBox::GetValue() const

 {
 {

-    wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
+    GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry );
+    wxString tmp( wxGTK_CONV_BACK( gtk_entry_get_text( entry ) ) );

 
 

-    int res = FindString( string );
-    if (res == -1) return;
-    SetSelection( res );
+#if 0
+    for (int i = 0; i < wxStrlen(tmp.c_str()) +1; i++)
+    {
+        wxChar c = tmp[i];
+        printf( "%d ", (int) (c) );
+    }
+    printf( "\n" );
+#endif
+
+    return tmp;

 }
 
 }
 

-wxString wxComboBox::GetValue() const
+void wxComboBox::SetValue( const wxString& value )

 {
 {

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

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

-    wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) );
-    return tmp;
+    gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( value ) );
+
+    InvalidateBestSize();

 }
 
 }
 

-void wxComboBox::SetValue( const wxString& value )
+void wxComboBox::WriteText(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("");
-    if (!value.IsNull()) tmp = value;
-    gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
+    GtkEditable * const edit = GTK_EDITABLE(entry);
+
+    gtk_editable_delete_selection(edit);
+    gint len = gtk_editable_get_position(edit);
+    gtk_editable_insert_text(edit, wxGTK_CONV(value), -1, &len);
+    gtk_editable_set_position(edit, len);

 }
 
 void wxComboBox::Copy()
 {
 }
 
 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::Undo()

 {
 {

-    wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
+    // TODO
+}

 
 

-    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-    gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
+void wxComboBox::Redo()
+{
+    // TODO

 }
 
 }
 

-void wxComboBox::SetInsertionPointEnd()
+void wxComboBox::SelectAll()

 {
 {

-    wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
+    SetSelection(0, GetLastPosition());
+}

 
 

-    SetInsertionPoint( -1 );
+bool wxComboBox::CanUndo() const
+{
+    // TODO
+    return false;

 }
 
 }
 

-long wxComboBox::GetInsertionPoint() const
+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") );
+
+    if ( pos == GetLastPosition() )
+        pos = -1;
+

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

-    return (long) GTK_EDITABLE(entry)->current_pos;
+    gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
+}
+
+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;
 {
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     int pos = GTK_ENTRY(entry)->text_length;


@@ -498,22 +742,19 @@ 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") );
-    // FIXME: not quite sure how to do this method right in multibyte mode
+    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 );
     if (value.IsNull()) return;
     gint pos = (gint)to;
 
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
     if (value.IsNull()) return;
     gint pos = (gint)to;

-    gtk_editable_insert_text( GTK_EDITABLE(entry), value.mbc_str(), value.Length(), &pos );
-}

 
 

-void wxComboBox::Remove(long from, long to)
-{
-    wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
-
-    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-    gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
+#if wxUSE_UNICODE
+    wxCharBuffer buffer = wxConvUTF8.cWX2MB( value );
+    gtk_editable_insert_text( GTK_EDITABLE(entry), (const char*) buffer, strlen( (const char*) buffer ), &pos );
+#else
+    gtk_editable_insert_text( GTK_EDITABLE(entry), value.c_str(), value.length(), &pos );
+#endif

 }
 
 void wxComboBox::SetSelection( long from, long to )
 }
 
 void wxComboBox::SetSelection( long from, long to )


@@ -522,6 +763,16 @@ void wxComboBox::SetSelection( long from, long to )
     gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)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);
+        *from = (long) editable->selection_start_pos;
+        *to = (long) editable->selection_end_pos;
+    }
+}
+

 void wxComboBox::SetEditable( bool editable )
 {
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 void wxComboBox::SetEditable( bool editable )
 {
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;


@@ -530,69 +781,85 @@ void wxComboBox::SetEditable( bool editable )
 
 void wxComboBox::OnChar( wxKeyEvent &event )
 {
 
 void wxComboBox::OnChar( wxKeyEvent &event )
 {

-    if ( event.KeyCode() == WXK_RETURN )
+    if ( event.GetKeyCode() == WXK_RETURN )

     {
     {

-        wxString value = GetValue();
+        // GTK automatically selects an item if its in the list
+        wxCommandEvent eventEnter(wxEVT_COMMAND_TEXT_ENTER, GetId());
+        eventEnter.SetString( GetValue() );
+        eventEnter.SetInt( GetSelection() );
+        eventEnter.SetEventObject( this );

 
 

-        if ( Number() == 0 )
+        if (!HandleWindowEvent( eventEnter ))

         {
         {

-            // make Enter generate "selected" event if there is only one item
-            // in the combobox - without it, it's impossible to select it at
-            // all!
-            wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
-            event.SetInt( 0 );
-            event.SetString( value );
-            event.SetEventObject( this );
-            GetEventHandler()->ProcessEvent( event );
-        }
-        else
-        {
-            // add the item to the list if it's not there yet
-            if ( FindString(value) == wxNOT_FOUND )
+            // 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))

             {
             {

-                Append(value);
-
-                // and generate the selected event for it
-                wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
-                event.SetInt( Number() - 1 );
-                event.SetString( value );
-                event.SetEventObject( this );
-                GetEventHandler()->ProcessEvent( event );
+                GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
+
+                if (window->default_widget)
+                        gtk_widget_activate (window->default_widget);

             }
             }

-            //else: do nothing, this will open the listbox

         }
         }

+
+        // Catch GTK event so that GTK doesn't open the drop
+        // down list upon RETURN.
+        return;

     }
 
     event.Skip();
 }
 
     }
 
     event.Skip();
 }
 

-void wxComboBox::OnSize( wxSizeEvent &event )
+void wxComboBox::DisableEvents()

 {
 {

-    wxControl::OnSize( event );
+    gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(m_widget)->list),
+      GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this );
+    gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(m_widget)->entry),
+      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this );
+}

 
 

-    int w = 21;
-    gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
+void wxComboBox::EnableEvents()
+{
+    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_after( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
+      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this );
+}

 
 

-    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 );
+void wxComboBox::OnSize( wxSizeEvent &event )
+{
+    // NB: In some situations (e.g. on non-first page of a wizard, if the
+    //     size used is default size), GtkCombo widget is resized correctly,
+    //     but it's look is not updated, it's rendered as if it was much wider.
+    //     No other widgets are affected, so it looks like a bug in GTK+.
+    //     Manually requesting resize calculation (as gtk_pizza_set_size does)
+    //     fixes it.
+    if (GTK_WIDGET_VISIBLE(m_widget))
+        gtk_widget_queue_resize(m_widget);
+
+    event.Skip();

 }
 
 }
 

-void wxComboBox::ApplyWidgetStyle()
+void wxComboBox::DoApplyWidgetStyle(GtkRcStyle *style)

 {
 {

-    SetWidgetStyle();
+//    gtk_widget_modify_style( GTK_COMBO(m_widget)->button, syle );

 
 

-    gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
-    gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
-    gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
+    gtk_widget_modify_style( GTK_COMBO(m_widget)->entry, style );
+    gtk_widget_modify_style( GTK_COMBO(m_widget)->list, style );

 
     GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
     GList *child = list->children;
     while (child)
     {
 
     GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
     GList *child = list->children;
     while (child)
     {

-        gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
+        gtk_widget_modify_style( GTK_WIDGET(child->data), style );

 
         GtkBin *bin = GTK_BIN(child->data);
 
         GtkBin *bin = GTK_BIN(child->data);

-        gtk_widget_set_style( bin->child, m_widgetStyle );
+        gtk_widget_modify_style( bin->child, style );

 
         child = child->next;
     }
 
         child = child->next;
     }


@@ -609,3 +876,114 @@ 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
+    if ( m_widget )
+    {
+        int width;
+        unsigned int count = GetCount();
+        for ( unsigned int n = 0; n < count; n++ )
+        {
+            GetTextExtent(GetString(n), &width, NULL, NULL, NULL );
+            if ( width > ret.x )
+                ret.x = width;
+        }
+    }
+
+    // empty combobox should have some reasonable default size too
+    if ( ret.x < 100 )
+        ret.x = 100;
+
+    CacheBestSize(ret);
+    return ret;
+}
+
+// static
+wxVisualAttributes
+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