Added, documented and used wxGridCellChoiceEditor

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

diff --git a/src/gtk1/combobox.cpp b/src/gtk1/combobox.cpp
index 9db6be50b81f11be78716737abbaad44208478f9..60bbf8f50d257559cec9684145b0fcb4d8b4403a 100644 (file)
--- a/src/gtk1/combobox.cpp
+++ b/src/gtk1/combobox.cpp
@@ -2,18 +2,35 @@
 // Name:        combobox.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Name:        combobox.cpp
 // Purpose:
 // Author:      Robert Roebling

-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation "combobox.h"
 #endif
 
 #pragma implementation "combobox.h"
 #endif
 

+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+

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

-#include <wx/intl.h>
+
+#if wxUSE_COMBOBOX
+
+#include "wx/settings.h"
+#include "wx/intl.h"
+
+#include "wx/textctrl.h"    // for wxEVT_COMMAND_TEXT_UPDATED
+
+#include "wx/gtk/private.h"
+
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;

 
 //-----------------------------------------------------------------------------
 // data
 
 //-----------------------------------------------------------------------------
 // data


@@ -22,28 +39,56 @@
 extern bool   g_blockEventsOnDrag;
 
 //-----------------------------------------------------------------------------
 extern bool   g_blockEventsOnDrag;
 
 //-----------------------------------------------------------------------------

-// "select"
+// "select-child" - click/cursor get select-child, changed, select-child

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

-static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+static void
+gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo )

 {
 {

-  if (!combo->HasVMT()) return;
-  if (g_blockEventsOnDrag) return;
-  
-  if (combo->m_alreadySent)
-  {
-    combo->m_alreadySent = FALSE;
-    return;
-  }
+    if (g_isIdle) wxapp_install_idle_handler();
+
+    if (!combo->m_hasVMT) return;

 
 

-  combo->m_alreadySent = TRUE;
-  
-  wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, combo->GetId());
-  event.SetInt( combo->GetSelection() );
-  wxString tmp( combo->GetStringSelection() );
-  event.SetString( WXSTRINGCAST(tmp) );
-  event.SetEventObject(combo);
-  combo->GetEventHandler()->ProcessEvent(event);
+    if (g_blockEventsOnDrag) return;
+
+    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() );
+    event.SetInt( curSelection );
+    event.SetString( combo->GetStringSelection() );
+    event.SetEventObject( combo );
+
+    combo->GetEventHandler()->ProcessEvent( event );
+}
+
+//-----------------------------------------------------------------------------
+//  "changed" - typing and list item matches get changed, select-child
+//              if it doesn't match an item then just get a single changed
+//-----------------------------------------------------------------------------
+
+static void
+gtk_text_changed_callback( 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 );
+}
+
+static void
+gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo))
+{

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


@@ -53,376 +98,756 @@ static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox
 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
 
 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
 
 BEGIN_EVENT_TABLE(wxComboBox, wxControl)

-  EVT_SIZE(wxComboBox::OnSize)
+    EVT_SIZE(wxComboBox::OnSize)
+    EVT_CHAR(wxComboBox::OnChar)

 END_EVENT_TABLE()
 
 END_EVENT_TABLE()
 

-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;
-  
-  PreCreation( parent, id, pos, size, style, name );
-  
-  SetValidator( validator );
-
-  m_widget = gtk_combo_new();
-  
-  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;
-  
-  for (int i = 0; i < n; i++)
-  {
-    GtkWidget *list_item;
-    list_item = gtk_list_item_new_with_label( choices[i] ); 
-  
+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_prevSelection = 0;
+
+    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();
+    GtkCombo *combo = GTK_COMBO(m_widget);
+
+    // Disable GTK's broken events ...
+    gtk_signal_disconnect( GTK_OBJECT(combo->entry), combo->entry_change_id );
+    // ... and add surogate handler.
+    combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed",
+                             (GtkSignalFunc) gtk_dummy_callback, combo);
+
+    // make it more useable
+    gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
+
+    // and case-sensitive
+    gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+#ifndef __WXGTK20__
+    // gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
+#endif
+
+    for (int i = 0; i < n; i++)
+    {
+        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 );
+
+        gtk_widget_show( list_item );
+    }
+
+    m_parent->DoAddChild( this );
+
+    m_focusWidget = combo->entry;
+
+    PostCreation();
+
+    ConnectWidget( combo->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)
+        gtk_entry_set_editable( GTK_ENTRY( combo->entry ), FALSE );
+
+    gtk_signal_connect( 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_FUNC(gtk_combo_select_child_callback), (gpointer)this );
+
+    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() );
+
+    Show( TRUE );
+
+    return TRUE;
+}
+
+wxComboBox::~wxComboBox()
+{
+    wxList::compatibility_iterator node = m_clientObjectList.GetFirst();
+    while (node)
+    {
+        wxClientData *cd = (wxClientData*)node->GetData();
+        if (cd) delete cd;
+        node = node->GetNext();
+    }
+    m_clientObjectList.Clear();
+
+    m_clientDataList.Clear();
+}
+
+void wxComboBox::SetFocus()
+{
+    if ( m_hasFocus )
+    {
+        // don't do anything if we already have focus
+        return;
+    }
+
+    gtk_widget_grab_focus( m_focusWidget );
+}
+
+int wxComboBox::AppendCommon( const wxString &item )
+{
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
+
+    DisableEvents();
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( item ) );
+

     gtk_container_add( GTK_CONTAINER(list), list_item );
     gtk_container_add( GTK_CONTAINER(list), list_item );

-    
-    m_clientData.Append( (wxObject*)NULL );
-    
+
+    if (GTK_WIDGET_REALIZED(m_widget))
+    {
+        gtk_widget_realize( list_item );
+        gtk_widget_realize( GTK_BIN(list_item)->child );
+
+        if (m_widgetStyle) ApplyWidgetStyle();
+    }
+

     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 );
-  }
-  
-  PostCreation();
-
-  ConnectWidget( GTK_COMBO(m_widget)->button );
-  
-  if (!value.IsNull()) SetValue( value );
-    
-  Show( TRUE );
-    
-  return TRUE;
+
+    EnableEvents();
+
+    return GetCount() - 1;
+}
+
+int wxComboBox::Append( const wxString &item )
+{
+    m_clientDataList.Append( (wxObject*) NULL );
+    m_clientObjectList.Append( (wxObject*) NULL );
+
+    return AppendCommon( item );

 }
 
 }
 

-void wxComboBox::Clear(void)
+int wxComboBox::Append( const wxString &item, void *clientData )

 {
 {

-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  gtk_list_clear_items( GTK_LIST(list), 0, Number() );
-  
-  m_clientData.Clear();
+    m_clientDataList.Append( (wxObject*) clientData );
+    m_clientObjectList.Append( (wxObject*)NULL );
+
+    return AppendCommon( item );

 }
 
 }
 

-void wxComboBox::Append( const wxString &item )
+int wxComboBox::Append( const wxString &item, wxClientData *clientData )

 {
 {

-  Append( item, (char*)NULL );
+    m_clientDataList.Append( (wxObject*) NULL );
+    m_clientObjectList.Append( (wxObject*) clientData );
+
+    return AppendCommon( item );

 }
 
 }
 

-void wxComboBox::Append( const wxString &item, char *clientData )
+int wxComboBox::InsertCommon( const wxString &item, int pos )

 {
 {

-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  
-  GtkWidget *list_item = gtk_list_item_new_with_label( item ); 
-  
-  if (m_hasOwnStyle)
-  {
-    GtkBin *bin = GTK_BIN( list_item );
-    gtk_widget_set_style( bin->child, 
-      gtk_style_ref(
-        gtk_widget_get_style( m_widget ) ) ); 
-  }
-  
-  gtk_signal_connect( GTK_OBJECT(list_item), "select", 
-    GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
-  
-  m_clientData.Append( (wxObject*)clientData );
-  
-  gtk_container_add( GTK_CONTAINER(list), list_item );
-    
-  gtk_widget_show( list_item );
+    wxCHECK_MSG( !(GetWindowStyle() & wxCB_SORT), -1,
+                    wxT("can't insert into sorted list"));
+
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
+
+    int count = GetCount();
+    if (pos == count)
+    {
+        return AppendCommon(item);
+    }
+
+    DisableEvents();
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( item ) );
+
+    GList *gitem_list = g_list_alloc ();
+    gitem_list->data = list_item;
+    gtk_list_insert_items( GTK_LIST (list), gitem_list, pos );
+
+    if (GTK_WIDGET_REALIZED(m_widget))
+    {
+        gtk_widget_realize( list_item );
+        gtk_widget_realize( GTK_BIN(list_item)->child );
+
+        if (m_widgetStyle)
+            ApplyWidgetStyle();
+    }
+
+    gtk_widget_show( list_item );
+
+    EnableEvents();
+
+    return pos;
+}
+
+int wxComboBox::Insert( const wxString &item, int pos )
+{
+    const int count = GetCount();
+    wxCHECK_MSG( (pos >= 0) && (pos <= count), -1, wxT("invalid index") );
+
+    if (pos == count)
+    {
+        return Append(item);
+    }
+
+    m_clientDataList.Insert( pos, (wxObject*) NULL );
+    m_clientObjectList.Insert( pos, (wxObject*) NULL );
+
+    return InsertCommon( item, pos );
+}
+
+int wxComboBox::Insert( const wxString &item, int pos, void *clientData )
+{
+    int count = GetCount();
+    wxCHECK_MSG( (pos >= 0) && (pos <= count), -1, wxT("invalid index") );
+
+    if (pos == count)
+    {
+        return Append(item, clientData);
+    }
+
+    m_clientDataList.Insert( pos, (wxObject*) clientData );
+    m_clientObjectList.Insert( pos, (wxObject*)NULL );
+
+    return InsertCommon( item, pos );
+}
+
+int wxComboBox::Insert( const wxString &item, int pos, wxClientData *clientData )
+{
+    int count = GetCount();
+    wxCHECK_MSG( (pos >= 0) && (pos <= count), -1, wxT("invalid index") );
+
+    if (pos == count)
+    {
+        return Append(item, clientData);
+    }
+
+    m_clientDataList.Insert( pos, (wxObject*) NULL );
+    m_clientObjectList.Insert( pos, (wxObject*) clientData );
+
+    return InsertCommon( item, pos );
+}
+
+void wxComboBox::SetClientData( int n, void* clientData )
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    wxList::compatibility_iterator node = m_clientDataList.Item( n );
+    if (!node) return;
+
+    node->SetData( (wxObject*) clientData );
+}
+
+void* wxComboBox::GetClientData( int n ) const
+{
+    wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
+
+    wxList::compatibility_iterator node = m_clientDataList.Item( n );
+
+    return node ? node->GetData() : NULL;
+}
+
+void wxComboBox::SetClientObject( int n, wxClientData* clientData )
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    wxList::compatibility_iterator node = m_clientObjectList.Item( n );
+    if (!node) return;
+
+    wxClientData *cd = (wxClientData*) node->GetData();
+    if (cd) delete cd;
+
+    node->SetData( (wxObject*) clientData );
+}
+
+wxClientData* wxComboBox::GetClientObject( int n ) const
+{
+    wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
+
+    wxList::compatibility_iterator node = m_clientObjectList.Item( n );
+
+    return node ? (wxClientData*) node->GetData() : NULL;
+}
+
+void wxComboBox::Clear()
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    DisableEvents();
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+    gtk_list_clear_items( GTK_LIST(list), 0, Number() );
+
+    wxList::compatibility_iterator node = m_clientObjectList.GetFirst();
+    while (node)
+    {
+        wxClientData *cd = (wxClientData*)node->GetData();
+        if (cd) delete cd;
+        node = node->GetNext();
+    }
+    m_clientObjectList.Clear();
+
+    m_clientDataList.Clear();
+
+    EnableEvents();

 }
 
 void wxComboBox::Delete( int n )
 {
 }
 
 void wxComboBox::Delete( int n )
 {

-  GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
-  
-  GList *child = g_list_nth( listbox->children, n );
-  
-  if (!child)
-  {
-    wxFAIL_MSG("wrong index");
-    return;
-  }
-  
-  GList *list = g_list_append( NULL, child->data );
-  gtk_list_remove_items( listbox, list );
-  g_list_free( list );
-  
-  wxNode *node = m_clientData.Nth( n );
-  if (!node)
-  {
-    wxFAIL_MSG( "wrong index" );
-  }
-  else
-    m_clientData.DeleteNode( node );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
+
+    GList *child = g_list_nth( listbox->children, n );
+
+    if (!child)
+    {
+        wxFAIL_MSG(wxT("wrong index"));
+        return;
+    }
+
+    DisableEvents();
+
+    GList *list = g_list_append( (GList*) NULL, child->data );
+    gtk_list_remove_items( listbox, list );
+    g_list_free( list );
+
+    wxList::compatibility_iterator node = m_clientObjectList.Item( n );
+    if (node)
+    {
+        wxClientData *cd = (wxClientData*)node->GetData();
+        if (cd) delete cd;
+        m_clientObjectList.Erase( node );
+    }
+
+    node = m_clientDataList.Item( n );
+    if (node)
+        m_clientDataList.Erase( node );
+    
+    EnableEvents();
+}
+
+void wxComboBox::SetString(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)
+    {
+        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") );
+    }

 }
 
 int wxComboBox::FindString( const wxString &item )
 {
 }
 
 int wxComboBox::FindString( const wxString &item )
 {

-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  
-  GList *child = GTK_LIST(list)->children;
-  int count = 0;
-  while (child)
-  {
-    GtkBin *bin = GTK_BIN( child->data );
-    GtkLabel *label = GTK_LABEL( bin->child );
-    if (item == label->label) return count;
-    count++;
-    child = child->next;
-  }
-  
-  wxFAIL_MSG( "wxComboBox: string not found" );
-  
-  return -1;
-}
-
-char* wxComboBox::GetClientData( int n )
-{
-  wxNode *node = m_clientData.Nth( n );
-  if (node) return (char*)node->Data();
-  
-  wxFAIL_MSG( "wxComboBox: wrong index" );
-  
-  return (char *) NULL;
-}
-
-void wxComboBox::SetClientData( int n, char * clientData )
-{
-  wxNode *node = m_clientData.Nth( n );
-  if (node) node->SetData( (wxObject*) clientData );
-  
-  wxFAIL_MSG( "wxComboBox: wrong index" );
-}
-
-int wxComboBox::GetSelection(void) const
-{
-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  
-  GList *selection = GTK_LIST(list)->selection;
-  if (selection)
-  {
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+

     GList *child = GTK_LIST(list)->children;
     int count = 0;
     while (child)
     {
     GList *child = GTK_LIST(list)->children;
     int count = 0;
     while (child)
     {

-      if (child->data == selection->data) return count;
-      count++;
-      child = child->next;
+        GtkBin *bin = GTK_BIN( child->data );
+        GtkLabel *label = GTK_LABEL( bin->child );
+#ifdef __WXGTK20__
+        wxString str( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
+#else
+        wxString str( label->label );
+#endif
+        if (item == str)
+            return count;
+
+        count++;
+        child = child->next;
+    }
+
+    return wxNOT_FOUND;
+}
+
+int wxComboBox::GetSelection() const
+{
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    GList *selection = GTK_LIST(list)->selection;
+    if (selection)
+    {
+        GList *child = GTK_LIST(list)->children;
+        int count = 0;
+        while (child)
+        {
+            if (child->data == selection->data) return count;
+            count++;
+            child = child->next;
+        }

     }
     }

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

 }
 
 wxString wxComboBox::GetString( int n ) const
 {
 }
 
 wxString wxComboBox::GetString( int n ) const
 {

-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  
-  GList *child = g_list_nth( GTK_LIST(list)->children, n );
-  if (child)
-  {
-    GtkBin *bin = GTK_BIN( child->data );
-    GtkLabel *label = GTK_LABEL( bin->child );
-    return label->label;
-  }
-  
-  wxFAIL_MSG( "wxComboBox: wrong index" );
-  
-  return "";
-}
-
-wxString wxComboBox::GetStringSelection(void) const
-{
-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  
-  GList *selection = GTK_LIST(list)->selection;
-  if (selection)
-  {
-    GtkBin *bin = GTK_BIN( selection->data );
-    wxString tmp = GTK_LABEL( bin->child )->label;
-    return tmp;
-  }
-  
-  wxFAIL_MSG( "wxComboBox: no selection" );
-  
-  return "";
+    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    wxString str;
+    GList *child = g_list_nth( GTK_LIST(list)->children, n );
+    if (child)
+    {
+        GtkBin *bin = GTK_BIN( child->data );
+        GtkLabel *label = GTK_LABEL( bin->child );
+#ifdef __WXGTK20__
+        str = wxGTK_CONV_BACK( gtk_label_get_text(label) );
+#else
+        str = wxString( label->label );
+#endif
+    }
+    else
+    {
+        wxFAIL_MSG( wxT("wxComboBox: wrong index") );
+    }
+
+    return str;

 }
 
 }
 

-int wxComboBox::Number(void) const
+wxString wxComboBox::GetStringSelection() const

 {
 {

-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  
-  GList *child = GTK_LIST(list)->children;
-  int count = 0;
-  while (child) { count++; child = child->next; }
-  return count;
+    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    GList *selection = GTK_LIST(list)->selection;
+    if (selection)
+    {
+        GtkBin *bin = GTK_BIN( selection->data );
+        GtkLabel *label = GTK_LABEL( bin->child );
+#ifdef __WXGTK20__
+        wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
+#else
+        wxString tmp( label->label );
+#endif
+        return tmp;
+    }
+
+    wxFAIL_MSG( wxT("wxComboBox: no selection") );
+
+    return wxT("");
+}
+
+int wxComboBox::Number() const
+{
+    wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    GList *child = GTK_LIST(list)->children;
+    int count = 0;
+    while (child) { count++; child = child->next; }
+    return count;

 }
 
 void wxComboBox::SetSelection( int n )
 {
 }
 
 void wxComboBox::SetSelection( int n )
 {

-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  gtk_list_select_item( GTK_LIST(list), n );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    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 );
+    m_prevSelection = n;
+
+    EnableEvents();

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

-  int res = FindString( string );
-  if (res == -1) return;
-  SetSelection( res );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    int res = FindString( string );
+    if (res == -1) return;
+    SetSelection( res );

 }
 
 }
 

-wxString wxComboBox::GetValue(void) const
+wxString wxComboBox::GetValue() const

 {
 {

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) );
-  return tmp;
+    GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry );
+    wxString tmp( wxGTK_CONV_BACK( gtk_entry_get_text( entry ) ) );
+
+#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;

 }
 
 void wxComboBox::SetValue( const wxString& value )
 {
 }
 
 void wxComboBox::SetValue( const wxString& value )
 {

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  wxString tmp = "";
-  if (!value.IsNull()) tmp = value;
-  gtk_entry_set_text( GTK_ENTRY(entry), tmp );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    wxString tmp = wxT("");
+    if (!value.IsNull()) tmp = value;
+    gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( tmp ) );

 }
 
 }
 

-void wxComboBox::Copy(void)
+void wxComboBox::Copy()

 {
 {

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-#if (GTK_MINOR_VERSION == 1)
-  gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
-#else
-  gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
-#endif
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );

 }
 
 }
 

-void wxComboBox::Cut(void)
+void wxComboBox::Cut()

 {
 {

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-#if (GTK_MINOR_VERSION == 1)
-  gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
-#else
-  gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
-#endif
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    gtk_editable_cut_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );

 }
 
 }
 

-void wxComboBox::Paste(void)
+void wxComboBox::Paste()

 {
 {

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-#if (GTK_MINOR_VERSION == 1)
-  gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
-#else
-  gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
-#endif
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG);

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

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  int tmp = (int) pos;
-  gtk_entry_set_position( GTK_ENTRY(entry), tmp );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );

 }
 
 }
 

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

 {
 {

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  int pos = GTK_ENTRY(entry)->text_length;
-  SetInsertionPoint( pos-1 );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    SetInsertionPoint( -1 );

 }
 
 }
 

-long wxComboBox::GetInsertionPoint(void) const
+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(void) const
+long wxComboBox::GetLastPosition() const

 {
 {

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  int pos = GTK_ENTRY(entry)->text_length;
-  return (long) pos-1;
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    int pos = GTK_ENTRY(entry)->text_length;
+    return (long) pos-1;

 }
 
 void wxComboBox::Replace( long from, long to, const wxString& value )
 {
 }
 
 void wxComboBox::Replace( long from, long to, const wxString& value )
 {

-  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, value.Length(), &pos );
+    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;
+
+#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::Remove(long from, long to)
 {
 }
 
 void wxComboBox::Remove(long from, long to)
 {

-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
+    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 );
+}
+
+void wxComboBox::SetSelection( long from, long to )
+{
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
+}
+
+void wxComboBox::SetEditable( bool editable )
+{
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    gtk_entry_set_editable( GTK_ENTRY(entry), editable );
+}
+
+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 );
+
+        if (!GetEventHandler()->ProcessEvent( event ))
+        {
+            // 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);
+            }
+        }
+
+        // Catch GTK event so that GTK doesn't open the drop
+        // down list upon RETURN.
+        return;
+    }
+
+    event.Skip();

 }
 
 }
 

-void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) )
+void wxComboBox::DisableEvents()

 {
 {

-  wxFAIL_MSG( "wxComboBox::SetSelection not implemented" );
+    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 );

 }
 
 }
 

-void wxComboBox::SetEditable( bool WXUNUSED(editable) )
+void wxComboBox::EnableEvents()

 {
 {

-  wxFAIL_MSG( "wxComboBox::SetEditable not implemented" );
+    gtk_signal_connect( 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_FUNC(gtk_text_changed_callback), (gpointer)this );

 }
 
 void wxComboBox::OnSize( wxSizeEvent &event )
 {
 }
 
 void wxComboBox::OnSize( wxSizeEvent &event )
 {

-  wxControl::OnSize( event );
-  
-  int w = 22;
-  
-  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 );
-}
-
-void wxComboBox::SetFont( const wxFont &font )
-{
-  wxWindow::SetFont( font );
-   
-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  
-  gtk_widget_set_style( entry,
-    gtk_style_ref(
-      gtk_widget_get_style( m_widget ) ) ); 
-  
-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  
-  GList *child = GTK_LIST(list)->children;
-  while (child)
-  {
-    GtkBin *bin = (GtkBin*) child->data;
-    gtk_widget_set_style( bin->child, 
-      gtk_style_ref(
-        gtk_widget_get_style( m_widget ) ) ); 
-        
-    child = child->next;
-  }
-}
-
-GtkWidget* wxComboBox::GetConnectWidget(void)
-{
-  return GTK_COMBO(m_widget)->entry;
+    event.Skip();
+
+#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 );
+#endif // 0
+}
+
+void wxComboBox::ApplyWidgetStyle()
+{
+    SetWidgetStyle();
+
+//    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 );
+
+    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 );
+
+        GtkBin *bin = GTK_BIN(child->data);
+        gtk_widget_set_style( bin->child, m_widgetStyle );
+
+        child = child->next;
+    }
+}
+
+GtkWidget* wxComboBox::GetConnectWidget()
+{
+    return GTK_COMBO(m_widget)->entry;

 }
 
 bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 {
 }
 
 bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 {

-  return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
-           (window == GTK_COMBO(m_widget)->button->window ) );
+    return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
+             (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 )
+    {
+        int width;
+        size_t count = GetCount();
+        for ( size_t n = 0; n < count; n++ )
+        {
+            GetTextExtent( GetString(n), &width, NULL, NULL, NULL, &m_font );
+            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