ensure that either RTLD_LAZY or RTLD_NOW is always used as calling dlopen() with...

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

diff --git a/src/gtk1/choice.cpp b/src/gtk1/choice.cpp
index b772e750a81ade70652d3fdf650423f1fc4325e8..59d5402c12c206b84daf8d170c446298d3ba8614 100644 (file)
--- a/src/gtk1/choice.cpp
+++ b/src/gtk1/choice.cpp
@@ -8,16 +8,18 @@
 /////////////////////////////////////////////////////////////////////////////
 
 
 /////////////////////////////////////////////////////////////////////////////
 
 

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

 #pragma implementation "choice.h"
 #endif
 
 #pragma implementation "choice.h"
 #endif
 

-#include "wx/choice.h"
+#include "wx/defs.h"

 
 #if wxUSE_CHOICE
 
 
 #if wxUSE_CHOICE
 

-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include "wx/choice.h"
+#include "wx/arrstr.h"
+
+#include "wx/gtk/private.h"

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


@@ -45,6 +47,29 @@ static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *
 
     if (g_blockEventsOnDrag) return;
 
 
     if (g_blockEventsOnDrag) return;
 

+    int selection = wxNOT_FOUND;
+
+#ifdef __WXGTK20__
+    selection = gtk_option_menu_get_history( GTK_OPTION_MENU(choice->GetHandle()) );
+#else
+    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(choice->GetHandle()) ) );
+    int count = 0;
+
+    GList *child = menu_shell->children;
+    while (child)
+    {
+        GtkBin *bin = GTK_BIN( child->data );
+        if (!bin->child)
+        {
+            selection = count;
+            break;
+        }
+        child = child->next;
+        count++;
+    }
+#endif
+    choice->m_selection_hack = selection;
+

     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
     int n = choice->GetSelection();
 
     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
     int n = choice->GetSelection();
 


@@ -71,6 +96,18 @@ wxChoice::wxChoice()
     m_strings = (wxSortedArrayString *)NULL;
 }
 
     m_strings = (wxSortedArrayString *)NULL;
 }
 

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

 bool wxChoice::Create( wxWindow *parent, wxWindowID id,
                        const wxPoint &pos, const wxSize &size,
                        int n, const wxString choices[],
 bool wxChoice::Create( wxWindow *parent, wxWindowID id,
                        const wxPoint &pos, const wxSize &size,
                        int n, const wxString choices[],


@@ -90,13 +127,6 @@ bool wxChoice::Create( wxWindow *parent, wxWindowID id,
 
     m_widget = gtk_option_menu_new();
 
 
     m_widget = gtk_option_menu_new();
 

-    wxSize newSize(size);
-    if (newSize.x == -1)
-        newSize.x = 80;
-    if (newSize.y == -1)
-        newSize.y = 26;
-    SetSize( newSize.x, newSize.y );
-

     if ( style & wxCB_SORT )
     {
         // if our m_strings != NULL, DoAppend() will check for it and insert
     if ( style & wxCB_SORT )
     {
         // if our m_strings != NULL, DoAppend() will check for it and insert


@@ -104,24 +134,22 @@ bool wxChoice::Create( wxWindow *parent, wxWindowID id,
         m_strings = new wxSortedArrayString;
     }
 
         m_strings = new wxSortedArrayString;
     }
 

+    // begin with no selection
+    m_selection_hack = wxNOT_FOUND;
+

     GtkWidget *menu = gtk_menu_new();
 
     for (int i = 0; i < n; i++)
     {
     GtkWidget *menu = gtk_menu_new();
 
     for (int i = 0; i < n; i++)
     {

-        AppendHelper(menu, choices[i]);
+        GtkAddHelper(menu, i, choices[i]);

     }
 
     gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
 
     m_parent->DoAddChild( this );
 
     }
 
     gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
 
     m_parent->DoAddChild( this );
 

-    PostCreation();
-
-    SetBackgroundColour( parent->GetBackgroundColour() );
-    SetForegroundColour( parent->GetForegroundColour() );
-    SetFont( parent->GetFont() );
-
-    Show( TRUE );
+    PostCreation(size);
+    SetBestSize(size); // need this too because this is a wxControlWithItems

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -139,14 +167,34 @@ int wxChoice::DoAppend( const wxString &item )
 
     GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
 
 
     GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
 

-    return AppendHelper(menu, item);
+    return GtkAddHelper(menu, GetCount(), item);
+}
+
+int wxChoice::DoInsert( const wxString &item, int pos )
+{
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") );
+    wxCHECK_MSG( (pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
+
+    if (pos == GetCount())
+        return DoAppend(item);
+
+    GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
+
+    // if the item to insert is at or before the selection, and the selection is valid
+    if ((pos <= m_selection_hack) && (m_selection_hack != wxNOT_FOUND))
+    {
+        // move the selection forward one
+        m_selection_hack++;
+    }
+
+    return GtkAddHelper(menu, pos, item);

 }
 
 void wxChoice::DoSetItemClientData( int n, void* clientData )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
 
 }
 
 void wxChoice::DoSetItemClientData( int n, void* clientData )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
 

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

     wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") );
 
     node->SetData( (wxObject*) clientData );
     wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") );
 
     node->SetData( (wxObject*) clientData );


@@ -156,21 +204,20 @@ void* wxChoice::DoGetItemClientData( int n ) const
 {
     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") );
 
 {
     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") );
 

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

     wxCHECK_MSG( node, NULL, wxT("invalid index in wxChoice::DoGetItemClientData") );
 
     wxCHECK_MSG( node, NULL, wxT("invalid index in wxChoice::DoGetItemClientData") );
 

-    return node->Data();
+    return node->GetData();

 }
 
 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
 
 }
 
 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
 

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

     wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") );
 
     wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") );
 

-    wxClientData *cd = (wxClientData*) node->Data();
-    delete cd;
+    // wxItemContainer already deletes data for us

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


@@ -179,11 +226,11 @@ wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 {
     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") );
 
 {
     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") );
 

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

     wxCHECK_MSG( node, (wxClientData *)NULL,
                  wxT("invalid index in wxChoice::DoGetItemClientObject") );
 
     wxCHECK_MSG( node, (wxClientData *)NULL,
                  wxT("invalid index in wxChoice::DoGetItemClientObject") );
 

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

 }
 
 void wxChoice::Clear()
 }
 
 void wxChoice::Clear()


@@ -199,22 +246,95 @@ void wxChoice::Clear()
         // destroy the data (due to Robert's idea of using wxList<wxObject>
         // and not wxList<wxClientData> we can't just say
         // m_clientList.DeleteContents(TRUE) - this would crash!
         // destroy the data (due to Robert's idea of using wxList<wxObject>
         // and not wxList<wxClientData> we can't just say
         // m_clientList.DeleteContents(TRUE) - this would crash!

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

         while ( node )
         {
         while ( node )
         {

-            delete (wxClientData *)node->Data();
-            node = node->Next();
+            delete (wxClientData *)node->GetData();
+            node = node->GetNext();

         }
     }
     m_clientList.Clear();
 
     if ( m_strings )
         m_strings->Clear();
         }
     }
     m_clientList.Clear();
 
     if ( m_strings )
         m_strings->Clear();

+
+    // begin with no selection
+    m_selection_hack = wxNOT_FOUND;

 }
 
 }
 

-void wxChoice::Delete( int WXUNUSED(n) )
+void wxChoice::Delete( int n )

 {
 {

-    wxFAIL_MSG( wxT("wxChoice:Delete not implemented") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+
+    // VZ: apparently GTK+ doesn't have a built-in function to do it (not even
+    //     in 2.0), hence this dumb implementation -- still better than nothing
+    int i,
+        count = GetCount();
+
+    wxCHECK_RET( n >= 0 && n < count, _T("invalid index in wxChoice::Delete") );
+
+    // if the item to delete is before the selection, and the selection is valid
+    if ((n < m_selection_hack) && (m_selection_hack != wxNOT_FOUND))
+    {
+        // move the selection back one
+        m_selection_hack--;
+    }
+    else if (n == m_selection_hack)
+    {
+        // invalidate the selection
+        m_selection_hack = wxNOT_FOUND;
+    }
+
+    const bool hasClientData = m_clientDataItemsType != wxClientData_None;
+    const bool hasObjectData = m_clientDataItemsType == wxClientData_Object;
+
+    wxList::compatibility_iterator node = m_clientList.GetFirst();
+
+    wxArrayString items;
+    wxArrayPtrVoid itemsData;
+    items.Alloc(count);
+    for ( i = 0; i < count; i++ )
+    {
+        if ( i != n )
+        {
+            items.Add(GetString(i));
+            if ( hasClientData )
+            {
+                // also save the client data
+                itemsData.Add(node->GetData());
+            }
+        }
+        else // need to delete the client object too
+        {
+            if ( hasObjectData )
+            {
+                delete (wxClientData *)node->GetData();
+            }
+        }
+
+        if ( hasClientData )
+        {
+            node = node->GetNext();
+        }
+    }
+
+    if ( hasObjectData )
+    {
+        // prevent Clear() from destroying all client data
+        m_clientDataItemsType = wxClientData_None;
+    }
+
+    Clear();
+
+    for ( i = 0; i < count - 1; i++ )
+    {
+        Append(items[i]);
+
+        if ( hasObjectData )
+            SetClientObject(i, (wxClientData *)itemsData[i]);
+        else if ( hasClientData )
+            SetClientData(i, itemsData[i]);
+    }

 }
 
 int wxChoice::FindString( const wxString &string ) const
 }
 
 int wxChoice::FindString( const wxString &string ) const


@@ -231,16 +351,23 @@ int wxChoice::FindString( const wxString &string ) const
     {
         GtkBin *bin = GTK_BIN( child->data );
         GtkLabel *label = (GtkLabel *) NULL;
     {
         GtkBin *bin = GTK_BIN( child->data );
         GtkLabel *label = (GtkLabel *) NULL;

-        if (bin->child) label = GTK_LABEL(bin->child);
-        if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
+        if (bin->child)
+            label = GTK_LABEL(bin->child);
+        if (!label)
+            label = GTK_LABEL( BUTTON_CHILD(m_widget) );

 
         wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
 
 
         wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
 

-       if (string == wxString(label->label,*wxConvCurrent))
-           return count;
+#ifdef __WXGTK20__
+         wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text( label) ) );
+#else
+         wxString tmp( label->label );
+#endif
+        if (string == tmp)
+            return count;

 
 

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

     }
 
     return -1;
     }
 
     return -1;


@@ -250,25 +377,37 @@ int wxChoice::GetSelection() const
 {
     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
 
 {
     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
 

+    return m_selection_hack;
+
+}
+
+void wxChoice::SetString( int n, const wxString& str )
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+

     GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
     int count = 0;
     GList *child = menu_shell->children;
     while (child)
     {
         GtkBin *bin = GTK_BIN( child->data );
     GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
     int count = 0;
     GList *child = menu_shell->children;
     while (child)
     {
         GtkBin *bin = GTK_BIN( child->data );

-        if (!bin->child) return count;
+        if (count == n)
+        {
+            GtkLabel *label = (GtkLabel *) NULL;
+            if (bin->child)
+                label = GTK_LABEL(bin->child);
+            if (!label)
+                label = GTK_LABEL( BUTTON_CHILD(m_widget) );
+
+            wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
+
+            gtk_label_set_text( label, wxGTK_CONV( str ) ); 
+            
+            return;
+        }

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

-
-    return -1;
-}
-
-void wxChoice::SetString( int WXUNUSED(n), const wxString& WXUNUSED(string) )
-{
-    wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
-
-    wxFAIL_MSG(wxT("not implemented"));

 }
 
 wxString wxChoice::GetString( int n ) const
 }
 
 wxString wxChoice::GetString( int n ) const


@@ -284,12 +423,18 @@ wxString wxChoice::GetString( int n ) const
         if (count == n)
         {
             GtkLabel *label = (GtkLabel *) NULL;
         if (count == n)
         {
             GtkLabel *label = (GtkLabel *) NULL;

-            if (bin->child) label = GTK_LABEL(bin->child);
-            if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
+            if (bin->child)
+                label = GTK_LABEL(bin->child);
+            if (!label)
+                label = GTK_LABEL( BUTTON_CHILD(m_widget) );

 
             wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
 
 
             wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
 

-            return wxString(label->label,*wxConvCurrent);
+#ifdef __WXGTK20__
+            return wxString( wxGTK_CONV_BACK( gtk_label_get_text( label) ) );
+#else
+            return wxString( label->label );
+#endif

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


@@ -321,66 +466,56 @@ void wxChoice::SetSelection( int n )
 
     int tmp = n;
     gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
 
     int tmp = n;
     gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );

-}

 
 

-void wxChoice::DisableEvents()
-{
-/*
-    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
-    GList *child = menu_shell->children;
-    while (child)
+    // set the local selection variable manually
+    if ((n >= 0) && (n < GetCount()))

     {
     {

-        gtk_signal_disconnect_by_func( GTK_OBJECT( child->data ),
-          GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
-
-        child = child->next;
+        // a valid selection has been made
+        m_selection_hack = n;

     }
     }

-*/
-}
-
-void wxChoice::EnableEvents()
-{
-/*
-    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
-    GList *child = menu_shell->children;
-    while (child)
+    else if ((n == wxNOT_FOUND) || (GetCount() == 0))

     {
     {

-        gtk_signal_connect( GTK_OBJECT( child->data ), "activate",
-          GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
-
-        child = child->next;
+        // invalidates the selection if there are no items
+        // or if it is specifically set to wxNOT_FOUND
+        m_selection_hack = wxNOT_FOUND;
+    }
+    else
+    {
+        // this selects the first item by default if the selection is out of bounds
+        m_selection_hack = 0;

     }
     }

-*/

 }
 
 }
 

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

 {
 {

-    SetWidgetStyle();
-

     GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
 
     GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
 

-    gtk_widget_set_style( m_widget, m_widgetStyle );
-    gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle );
+    gtk_widget_modify_style( m_widget, style );
+    gtk_widget_modify_style( GTK_WIDGET( menu_shell ), style );

 
     GList *child = menu_shell->children;
     while (child)
     {
 
     GList *child = menu_shell->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 );
         GtkWidget *label = (GtkWidget *) NULL;
 
         GtkBin *bin = GTK_BIN( child->data );
         GtkWidget *label = (GtkWidget *) NULL;

-        if (bin->child) label = bin->child;
-        if (!label) label = GTK_BUTTON(m_widget)->child;
+        if (bin->child)
+            label = bin->child;
+        if (!label)
+            label = BUTTON_CHILD(m_widget);

 
 

-        gtk_widget_set_style( label, m_widgetStyle );
+        gtk_widget_modify_style( label, style );

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

-size_t wxChoice::AppendHelper(GtkWidget *menu, const wxString& item)
+int wxChoice::GtkAddHelper(GtkWidget *menu, int pos, const wxString& item)

 {
 {

-    GtkWidget *menu_item = gtk_menu_item_new_with_label( item.mbc_str() );
+    wxCHECK_MSG((pos>=0) && (pos<=(int)m_clientList.GetCount()), -1, wxT("invalid index"));
+
+    GtkWidget *menu_item = gtk_menu_item_new_with_label( wxGTK_CONV( item ) );

 
     size_t index;
     if ( m_strings )
 
     size_t index;
     if ( m_strings )


@@ -402,14 +537,22 @@ size_t wxChoice::AppendHelper(GtkWidget *menu, const wxString& item)
     }
     else
     {
     }
     else
     {

+        // don't call wxChoice::GetCount() from here because it doesn't work
+        // if we're called from ctor (and GtkMenuShell is still NULL)
+

         // normal control, just append
         // normal control, just append

+        if (pos == (int)m_clientList.GetCount())
+        {

         gtk_menu_append( GTK_MENU(menu), menu_item );
         gtk_menu_append( GTK_MENU(menu), menu_item );

-

         m_clientList.Append( (wxObject*) NULL );
         m_clientList.Append( (wxObject*) NULL );

-
-        // don't call wxChoice::GetCount() from here because it doesn't work
-        // if we're called from ctor (and GtkMenuShell is still NULL)

         index = m_clientList.GetCount() - 1;
         index = m_clientList.GetCount() - 1;

+        }
+        else
+        {
+            gtk_menu_insert( GTK_MENU(menu), menu_item, pos );
+            m_clientList.Insert( pos, (wxObject*) NULL );
+            index = pos;
+        }

     }
 
     if (GTK_WIDGET_REALIZED(m_widget))
     }
 
     if (GTK_WIDGET_REALIZED(m_widget))


@@ -417,10 +560,16 @@ size_t wxChoice::AppendHelper(GtkWidget *menu, const wxString& item)
         gtk_widget_realize( menu_item );
         gtk_widget_realize( GTK_BIN(menu_item)->child );
 
         gtk_widget_realize( menu_item );
         gtk_widget_realize( GTK_BIN(menu_item)->child );
 

-        if (m_widgetStyle) ApplyWidgetStyle();
+        ApplyWidgetStyle();

     }
 
     }
 

-    gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
+    // The best size of a wxChoice should probably
+    // be changed everytime the control has been
+    // changed, but at least after adding an item
+    // it has to change. Adapted from Matt Ownby.
+    InvalidateBestSize();
+    
+    gtk_signal_connect_after( GTK_OBJECT( menu_item ), "activate",

       GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
 
     gtk_widget_show( menu_item );
       GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
 
     gtk_widget_show( menu_item );


@@ -429,4 +578,67 @@ size_t wxChoice::AppendHelper(GtkWidget *menu, const wxString& item)
     return index;
 }
 
     return index;
 }
 

+wxSize wxChoice::DoGetBestSize() const
+{
+    wxSize ret( wxControl::DoGetBestSize() );
+
+    // we know better our horizontal extent: it depends on the longest string
+    // we have
+    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 );
+            if ( width > ret.x )
+                ret.x = width;
+        }
+
+        // add extra for the choice "=" button
+
+        // VZ: I don't know how to get the right value, it seems to be in
+        //     GtkOptionMenuProps struct from gtkoptionmenu.c but we can't get
+        //     to it - maybe we can use gtk_option_menu_size_request() for this
+        //     somehow?
+        //
+        //     This default value works only for the default GTK+ theme (i.e.
+        //     no theme at all) (FIXME)
+        static const int widthChoiceIndicator = 35;
+        ret.x += widthChoiceIndicator;
+    }
+
+    // but not less than the minimal width
+    if ( ret.x < 80 )
+        ret.x = 80;
+
+    // If this request_size is called with no entries then
+    // the returned height is wrong. Give it a reasonable
+    // default value.
+    if (ret.y <= 18)
+        ret.y = 8 + GetCharHeight();
+
+    CacheBestSize(ret);
+    return ret;
+}
+
+bool wxChoice::IsOwnGtkWindow( GdkWindow *window )
+{
+#ifdef __WXGTK20__
+    return GTK_BUTTON(m_widget)->event_window;
+#else
+    return (window == m_widget->window);

 #endif
 #endif

+}
+
+// static
+wxVisualAttributes
+wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
+{
+    return GetDefaultAttributesFromGTKWidget(gtk_option_menu_new);
+}
+
+
+#endif // wxUSE_CHOICE
+