X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2f6407b9473f0a3cbd88d6419926b25ab5d6850a..74f551959f777d3d8993f9fac3a0b501ab95041a:/src/gtk/combobox.cpp

diff --git a/src/gtk/combobox.cpp b/src/gtk/combobox.cpp
index 302cf3abda..40e9370a10 100644
--- a/src/gtk/combobox.cpp
+++ b/src/gtk/combobox.cpp
@@ -2,10 +2,9 @@
 // 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__
@@ -13,7 +12,21 @@
 #endif
 
 #include "wx/combobox.h"
-#include <wx/intl.h>
+
+#if wxUSE_COMBOBOX
+
+#include "wx/settings.h"
+#include "wx/intl.h"
+
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
 
 //-----------------------------------------------------------------------------
 // data
@@ -22,357 +35,659 @@
 extern bool   g_blockEventsOnDrag;
 
 //-----------------------------------------------------------------------------
-// wxComboBox
+// "select"
 //-----------------------------------------------------------------------------
 
+static void
+gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+{
+    if (g_isIdle) wxapp_install_idle_handler();
+
+    if (!combo->m_hasVMT) return;
+
+    if (g_blockEventsOnDrag) return;
+
+    if (combo->m_alreadySent)
+    {
+        combo->m_alreadySent = FALSE;
+        return;
+    }
+
+    combo->m_alreadySent = TRUE;
+
+    wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
+    event.SetInt( combo->GetSelection() );
+    event.SetString( combo->GetStringSelection() );
+    event.SetEventObject( combo );
+
+    combo->GetEventHandler()->ProcessEvent( event );
+}
+
+//-----------------------------------------------------------------------------
+//  "changed"
 //-----------------------------------------------------------------------------
-// clicked
 
-static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+static void
+gtk_text_changed_callback( 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);
+    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
+    event.SetString( combo->GetValue() );
+    event.SetEventObject( combo );
+    combo->GetEventHandler()->ProcessEvent( event );
 }
 
 //-----------------------------------------------------------------------------
-// size 
-
-/*
-static gint gtk_combo_size_callback( GtkCombo *widget, GtkAllocation* alloc, wxComboBox *win )
-{ 
-  if (!win->HasVMT()) return FALSE;
-  if (g_blockEventsOnDrag) return FALSE;
-  if (!widget->button) return FALSE;
-  
-  widget->button->allocation.x = 
-    alloc->width - widget->button->allocation.width;
-  
-  return FALSE;
-}
-*/
-
+// wxComboBox
 //-----------------------------------------------------------------------------
 
 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
 
-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] ); 
-  
+BEGIN_EVENT_TABLE(wxComboBox, wxControl)
+    EVT_SIZE(wxComboBox::OnSize)
+    EVT_CHAR(wxComboBox::OnChar)
+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;
+    m_acceptsFocus = TRUE;
+
+    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();
+
+    // make it more useable
+    gtk_combo_set_use_arrows_always(GTK_COMBO(m_widget), TRUE);
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    for (int i = 0; i < n; i++)
+    {
+        /* don't send first event, which GTK sends aways when
+           inserting the first item */
+        m_alreadySent = TRUE;
+
+        GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );
+
+        m_clientDataList.Append( (wxObject*)NULL );
+        m_clientObjectList.Append( (wxObject*)NULL );
+
+        gtk_container_add( GTK_CONTAINER(list), list_item );
+
+        gtk_signal_connect( GTK_OBJECT(list_item), "select",
+           GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
+
+        gtk_widget_show( list_item );
+    }
+
+    m_parent->DoAddChild( this );
+
+    PostCreation();
+
+    ConnectWidget( GTK_COMBO(m_widget)->button );
+
+    if (!value.IsNull()) SetValue( value );
+
+    if (style & wxCB_READONLY)
+        gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
+
+    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
+      GTK_SIGNAL_FUNC(gtk_text_changed_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 );
+
+    SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
+    SetForegroundColour( parent->GetForegroundColour() );
+
+    Show( TRUE );
+
+    return TRUE;
+}
+
+wxComboBox::~wxComboBox()
+{
+    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();
+}
+
+void wxComboBox::AppendCommon( const wxString &item )
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+
+    GtkWidget *list_item = gtk_list_item_new_with_label( item.mbc_str() );
+
     gtk_container_add( GTK_CONTAINER(list), list_item );
-    
-    m_clientData.Append( (wxObject*)NULL );
-    
-    gtk_widget_show( list_item );
-    
-    gtk_signal_connect( GTK_OBJECT(list_item), "select", 
+
+    gtk_signal_connect( GTK_OBJECT(list_item), "select",
       GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
-  }
-  
-  PostCreation();
 
-/*
-  gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate", 
-    GTK_SIGNAL_FUNC(gtk_combo_size_callback), (gpointer)this );
-*/
+    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 );
+}
 
-  if (!value.IsNull()) SetValue( value );
-    
-  Show( TRUE );
-    
-  return TRUE;
+void wxComboBox::Append( const wxString &item )
+{
+    m_clientDataList.Append( (wxObject*) NULL );
+    m_clientObjectList.Append( (wxObject*) NULL );
+
+    AppendCommon( item );
 }
 
-void wxComboBox::Clear(void)
+void 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 );
+
+    AppendCommon( item );
 }
 
-void wxComboBox::Append( const wxString &item )
+void wxComboBox::Append( const wxString &item, wxClientData *clientData )
+{
+    m_clientDataList.Append( (wxObject*) NULL );
+    m_clientObjectList.Append( (wxObject*) clientData );
+
+    AppendCommon( item );
+}
+
+void wxComboBox::SetClientData( int n, void* clientData )
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    wxNode *node = m_clientDataList.Nth( n );
+    if (!node) return;
+
+    node->SetData( (wxObject*) clientData );
+}
+
+void* wxComboBox::GetClientData( int n )
+{
+    wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
+
+    wxNode *node = m_clientDataList.Nth( n );
+    if (!node) return NULL;
+
+    return node->Data();
+}
+
+void wxComboBox::SetClientObject( int n, wxClientData* clientData )
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    wxNode *node = m_clientObjectList.Nth( n );
+    if (!node) return;
+
+    wxClientData *cd = (wxClientData*) node->Data();
+    if (cd) delete cd;
+
+    node->SetData( (wxObject*) clientData );
+}
+
+wxClientData* wxComboBox::GetClientObject( int n )
 {
-  Append( item, (char*)NULL );
+    wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
+
+    wxNode *node = m_clientDataList.Nth( n );
+    if (!node) return (wxClientData*) NULL;
+
+    return (wxClientData*) node->Data();
 }
 
-void wxComboBox::Append( const wxString &item, char *clientData )
+void wxComboBox::Clear()
 {
-  GtkWidget *list = GTK_COMBO(m_widget)->list;
-  
-  GtkWidget *list_item;
-  list_item = gtk_list_item_new_with_label( item ); 
-  
-  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_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *list = GTK_COMBO(m_widget)->list;
+    gtk_list_clear_items( GTK_LIST(list), 0, Number() );
+
+    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();
 }
 
 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;
+    }
+
+    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 );
+    if (node)
+    {
+        wxClientData *cd = (wxClientData*)node->Data();
+        if (cd) delete cd;
+        m_clientObjectList.DeleteNode( node );
+    }
+
+    node = m_clientDataList.Nth( n );
+    if (node)
+    {
+        m_clientDataList.DeleteNode( node );
+    }
 }
 
 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)
     {
-      if (child->data == selection->data) return count;
-      count++;
-      child = child->next;
+        GtkBin *bin = GTK_BIN( child->data );
+        GtkLabel *label = GTK_LABEL( bin->child );
+        if (item == wxString(label->label,*wxConvCurrent))
+            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
 {
-  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 );
+        str = wxString(label->label,*wxConvCurrent);
+    }
+    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 );
+        wxString tmp = wxString(GTK_LABEL( bin->child )->label,*wxConvCurrent);
+        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 )
 {
-  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_select_item( GTK_LIST(list), n );
+
+    EnableEvents();
 }
 
 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;
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    wxString tmp = wxString(gtk_entry_get_text( GTK_ENTRY(entry) ),*wxConvCurrent);
+    return tmp;
 }
 
 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), tmp.mbc_str() );
 }
 
-void wxComboBox::Copy(void)
+void wxComboBox::Copy()
 {
-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
+    gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
+#else
+    gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
+#endif
 }
 
-void wxComboBox::Cut(void)
+void wxComboBox::Cut()
 {
-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
+    gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
+#else
+    gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
+#endif
 }
 
-void wxComboBox::Paste(void)
+void wxComboBox::Paste()
 {
-  GtkWidget *entry = GTK_COMBO(m_widget)->entry;
-  gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
+
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
+    gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
+#else
+    gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
+#endif
 }
 
 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;
+    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
+    return (long) GTK_EDITABLE(entry)->current_pos;
 }
 
-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 )
 {
-  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") );
+    // FIXME: not quite sure how to do this method right in multibyte mode
+
+    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)
 {
-  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.KeyCode() == WXK_RETURN )
+    {
+        wxString value = GetValue();
+
+        if ( Number() == 0 )
+        {
+            // 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 )
+            {
+                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 );
+            }
+            //else: do nothing, this will open the listbox
+        }
+    }
+
+    event.Skip();
+}
+
+void wxComboBox::DisableEvents()
+{
+    GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
+    GList *child = list->children;
+    while (child)
+    {
+        gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
+          GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
+
+        child = child->next;
+    }
+}
+
+void wxComboBox::EnableEvents()
+{
+    GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
+    GList *child = list->children;
+    while (child)
+    {
+        gtk_signal_connect( GTK_OBJECT(child->data), "select",
+          GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
+
+        child = child->next;
+    }
+}
+
+void wxComboBox::OnSize( wxSizeEvent &event )
+{
+    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;
 }
 
-void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) )
+bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 {
+    return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
+             (window == GTK_COMBO(m_widget)->button->window ) );
 }
 
-void wxComboBox::SetEditable( bool WXUNUSED(editable) )
+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