Partial fix for #15196: wxRichTextCell caret issues (dghart)

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

diff --git a/src/gtk/choice.cpp b/src/gtk/choice.cpp
index c9e3cceac2b568532a13cfae7e7692ce6cc88aa7..d8819a2abc1880fab9563482cb3c07ddc7c7c05a 100644 (file)
--- a/src/gtk/choice.cpp
+++ b/src/gtk/choice.cpp
@@ -1,486 +1,383 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        choice.cpp
+// Name:        src/gtk/choice.cpp

 // Purpose:
 // Author:      Robert Roebling
 // Purpose:
 // Author:      Robert Roebling

-// Id:          $Id$

 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

+#include "wx/wxprec.h"

 
 

-#ifdef __GNUG__
-#pragma implementation "choice.h"
-#endif
-
-#include "wx/defs.h"
-
-#if wxUSE_CHOICE
+#if wxUSE_CHOICE || wxUSE_COMBOBOX

 
 #include "wx/choice.h"
 
 
 #include "wx/choice.h"
 

-#include "wx/gtk/private.h"
-
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
-
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
+#ifndef WX_PRECOMP
+    #include "wx/arrstr.h"
+#endif

 
 

-//-----------------------------------------------------------------------------
-// data
-//-----------------------------------------------------------------------------
+#include <gtk/gtk.h>
+#include "wx/gtk/private.h"
+#include "wx/gtk/private/gtk2-compat.h"

 
 

-extern bool   g_blockEventsOnDrag;
+// ----------------------------------------------------------------------------
+// GTK callbacks
+// ----------------------------------------------------------------------------

 
 

-//-----------------------------------------------------------------------------
-// "activate"
-//-----------------------------------------------------------------------------
+extern "C" {

 
 

-static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
+static void
+gtk_choice_changed_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )

 {
 {

-    if (g_isIdle)
-      wxapp_install_idle_handler();
-
-    if (!choice->m_hasVMT) return;
-
-    if (g_blockEventsOnDrag) return;
-
-    wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
-    int n = choice->GetSelection();
-
-    event.SetInt( n );
-    event.SetString( choice->GetStringSelection() );
-    event.SetEventObject(choice);
-
-    if ( choice->HasClientObjectData() )
-        event.SetClientObject( choice->GetClientObject(n) );
-    else if ( choice->HasClientUntypedData() )
-        event.SetClientData( choice->GetClientData(n) );
+    choice->SendSelectionChangedEvent(wxEVT_CHOICE);
+}

 
 

-    choice->GetEventHandler()->ProcessEvent(event);

 }
 
 //-----------------------------------------------------------------------------
 // wxChoice
 //-----------------------------------------------------------------------------
 
 }
 
 //-----------------------------------------------------------------------------
 // wxChoice
 //-----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl)
+void wxChoice::Init()
+{
+    m_strings = NULL;
+    m_stringCellIndex = 0;
+}

 
 

-wxChoice::wxChoice()
+bool wxChoice::Create( wxWindow *parent, wxWindowID id,
+                       const wxPoint &pos, const wxSize &size,
+                       const wxArrayString& choices,
+                       long style, const wxValidator& validator,
+                       const wxString &name )

 {
 {

-    m_strings = (wxSortedArrayString *)NULL;
+    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[],

-                       long style, const wxValidator& validator, const wxString &name )
+                       long style, const wxValidator& validator,
+                       const wxString &name )

 {
 {

-    m_needParent = TRUE;
-#if (GTK_MINOR_VERSION > 0)
-    m_acceptsFocus = TRUE;
-#endif
-

     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
         wxFAIL_MSG( wxT("wxChoice creation failed") );
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
         wxFAIL_MSG( wxT("wxChoice creation failed") );

-        return FALSE;
+        return false;

     }
 
     }
 

-    m_widget = gtk_option_menu_new();
-
-    if ( style & wxCB_SORT )
+    if ( IsSorted() )

     {
     {

-        // if our m_strings != NULL, DoAppend() will check for it and insert
+        // if our m_strings != NULL, Append() will check for it and insert

         // items in the correct order
         // items in the correct order

-        m_strings = new wxSortedArrayString;
+        m_strings = new wxGtkCollatedArrayString;

     }
 
     }
 

-    GtkWidget *menu = gtk_menu_new();
-
-    for (int i = 0; i < n; i++)
-    {
-        GtkAppendHelper(menu, choices[i]);
-    }
+#ifdef __WXGTK3__
+    m_widget = gtk_combo_box_text_new();
+#else
+    m_widget = gtk_combo_box_new_text();
+#endif
+    g_object_ref(m_widget);

 
 

-    gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
+    Append(n, choices);

 
     m_parent->DoAddChild( this );
 
 
     m_parent->DoAddChild( this );
 

-    PostCreation();
-
-    SetFont( parent->GetFont() );
-
-    SetBestSize(size);
+    PostCreation(size);

 
 

-    SetBackgroundColour( parent->GetBackgroundColour() );
-    SetForegroundColour( parent->GetForegroundColour() );
+    g_signal_connect_after (m_widget, "changed",
+                            G_CALLBACK (gtk_choice_changed_callback), this);

 
 

-    Show( TRUE );
-
-    return TRUE;
+    return true;

 }
 
 wxChoice::~wxChoice()
 {
 }
 
 wxChoice::~wxChoice()
 {

-    Clear();
-

     delete m_strings;
 }
 
     delete m_strings;
 }
 

-int wxChoice::DoAppend( const wxString &item )
+void wxChoice::GTKInsertComboBoxTextItem( unsigned int n, const wxString& text )

 {
 {

-    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") );
-
-    GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
-
-    return GtkAppendHelper(menu, item);
+#ifdef __WXGTK3__
+    gtk_combo_box_text_insert_text(GTK_COMBO_BOX_TEXT(m_widget), n, wxGTK_CONV(text));
+#else
+    gtk_combo_box_insert_text( GTK_COMBO_BOX( m_widget ), n, wxGTK_CONV( text ) );
+#endif

 }
 
 }
 

-void wxChoice::DoSetItemClientData( int n, void* clientData )
+int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items,
+                            unsigned int pos,
+                            void **clientData, wxClientDataType type)

 {
 {

-    wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
+    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid control") );

 
 

-    wxNode *node = m_clientList.Nth( n );
-    wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") );
-
-    node->SetData( (wxObject*) clientData );
-}
+    wxASSERT_MSG( !IsSorted() || (pos == GetCount()),
+                 wxT("In a sorted choice data could only be appended"));

 
 

-void* wxChoice::DoGetItemClientData( int n ) const
-{
-    wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") );
+    const int count = items.GetCount();

 
 

-    wxNode *node = m_clientList.Nth( n );
-    wxCHECK_MSG( node, NULL, wxT("invalid index in wxChoice::DoGetItemClientData") );
+    int n = wxNOT_FOUND;

 
 

-    return node->Data();
-}
+    for ( int i = 0; i < count; ++i )
+    {
+        n = pos + i;
+        // If sorted, use this wxSortedArrayStrings to determine
+        // the right insertion point
+        if (m_strings)
+            n = m_strings->Add(items[i]);

 
 

-void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
-{
-    wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
+        GTKInsertComboBoxTextItem( n, items[i] );

 
 

-    wxNode *node = m_clientList.Nth( n );
-    wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") );
+        m_clientData.Insert( NULL, n );
+        AssignNewItemClientData(n, clientData, i, type);
+    }

 
 

-    // wxItemContainer already deletes data for us
+    InvalidateBestSize();

 
 

-    node->SetData( (wxObject*) clientData );
+    return n;

 }
 
 }
 

-wxClientData* wxChoice::DoGetItemClientObject( int n ) const
+void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)

 {
 {

-    wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") );
-
-    wxNode *node = m_clientList.Nth( n );
-    wxCHECK_MSG( node, (wxClientData *)NULL,
-                 wxT("invalid index in wxChoice::DoGetItemClientObject") );
+    m_clientData[n] = clientData;
+}

 
 

-    return (wxClientData*) node->Data();
+void* wxChoice::DoGetItemClientData(unsigned int n) const
+{
+    return m_clientData[n];

 }
 
 }
 

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

 {
 {

-    wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid control") );

 
 

-    gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) );
-    GtkWidget *menu = gtk_menu_new();
-    gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
+    GTKDisableEvents();

 
 

-    if ( HasClientObjectData() )
-    {
-        // 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();
-        while ( node )
-        {
-            delete (wxClientData *)node->Data();
-            node = node->Next();
-        }
-    }
-    m_clientList.Clear();
+    GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+    GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+    gtk_list_store_clear(GTK_LIST_STORE(model));

 
 

-    if ( m_strings )
-        m_strings->Clear();
-}
+    m_clientData.Clear();

 
 

-void wxChoice::Delete( int n )
-{
-    wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+    if (m_strings)
+        m_strings->Clear();

 
 

-    // VZ: apparently GTK+ doesn't have a built-in function to do it (not even
-    //     in 2.0), hence this dump implementation - still better than nothing
-    int i,
-        count = GetCount();
+    GTKEnableEvents();

 
 

-    wxCHECK_RET( n >= 0 && n < count, _T("invalid index in wxChoice::Delete") );
+    InvalidateBestSize();
+}

 
 

-    wxArrayString items;
-    items.Alloc(count);
-    for ( i = 0; i < count; i++ )
+void wxChoice::DoDeleteOneItem(unsigned int n)
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
+    wxCHECK_RET( IsValid(n), wxT("invalid index in wxChoice::Delete") );
+
+    GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+    GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+    GtkListStore* store = GTK_LIST_STORE(model);
+    GtkTreeIter iter;
+    if ( !gtk_tree_model_iter_nth_child(model, &iter, NULL, n) )

     {
     {

-        if ( i != n )
-            items.Add(GetString(i));
+        // This is really not supposed to happen for a valid index.
+        wxFAIL_MSG(wxS("Item unexpectedly not found."));
+        return;

     }
     }

+    gtk_list_store_remove( store, &iter );

 
 

-    Clear();
+    m_clientData.RemoveAt( n );
+    if ( m_strings )
+        m_strings->RemoveAt( n );

 
 

-    for ( i = 0; i < count - 1; i++ )
-    {
-        Append(items[i]);
-    }
+    InvalidateBestSize();

 }
 
 }
 

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

 {
 {

-    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
-
-    // If you read this code once and you think you understand
-    // it, then you are very wrong. Robert Roebling.
-
-    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
+    wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid control") );
+
+    GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+    GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+    GtkTreeIter iter;
+    gtk_tree_model_get_iter_first( model, &iter );
+    if (!gtk_list_store_iter_is_valid(GTK_LIST_STORE(model), &iter ))
+        return -1;

     int count = 0;
     int count = 0;

-    GList *child = menu_shell->children;
-    while (child)
+    do

     {
     {

-        GtkBin *bin = GTK_BIN( child->data );
-        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") );
-        
-#ifdef __WXGTK20__
-         wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text( label) ) );
-#else
-         wxString tmp( label->label );
-#endif
-        if (string == tmp)
+        GValue value = { 0, };
+        gtk_tree_model_get_value( model, &iter, m_stringCellIndex, &value );
+        wxString str = wxGTK_CONV_BACK( g_value_get_string( &value ) );
+        g_value_unset( &value );
+
+        if (item.IsSameAs( str, bCase ) )

             return count;
 
             return count;
 

-        child = child->next;

         count++;
     }
         count++;
     }

+    while ( gtk_tree_model_iter_next(model, &iter) );

 
 

-    return -1;
+    return wxNOT_FOUND;

 }
 
 int wxChoice::GetSelection() const
 {
 }
 
 int wxChoice::GetSelection() const
 {

-    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
-    
-#ifdef __WXGTK20__
+    return gtk_combo_box_get_active( GTK_COMBO_BOX( m_widget ) );
+}

 
 

-    return gtk_option_menu_get_history( GTK_OPTION_MENU(m_widget) );
-    
-#else
-    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)
+void wxChoice::SetString(unsigned int n, const wxString &text)
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
+
+    GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+    wxCHECK_RET( IsValid(n), wxT("invalid index") );
+
+    GtkTreeModel *model = gtk_combo_box_get_model( combobox );
+    GtkTreeIter iter;
+    if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n))

     {
     {

-        GtkBin *bin = GTK_BIN( child->data );
-        if (!bin->child) return count;
-        child = child->next;
-        count++;
+        GValue value = { 0, };
+        g_value_init( &value, G_TYPE_STRING );
+        g_value_set_string( &value, wxGTK_CONV( text ) );
+        gtk_list_store_set_value( GTK_LIST_STORE(model), &iter, m_stringCellIndex, &value );
+        g_value_unset( &value );

     }
 
     }
 

-    return -1;
-#endif
+    InvalidateBestSize();

 }
 
 }
 

-void wxChoice::SetString( int WXUNUSED(n), const wxString& WXUNUSED(string) )
+wxString wxChoice::GetString(unsigned int n) const

 {
 {

-    wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+    wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid control") );

 
 

-    wxFAIL_MSG(wxT("not implemented"));
-}
+    wxString str;

 
 

-wxString wxChoice::GetString( int n ) const
-{
-    wxCHECK_MSG( m_widget != NULL, wxT(""), 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)
+    GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+    GtkTreeModel *model = gtk_combo_box_get_model( combobox );
+    GtkTreeIter iter;
+    if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n))

     {
     {

-        GtkBin *bin = GTK_BIN( child->data );
-        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") );
-
-#ifdef __WXGTK20__
-            return wxString( wxGTK_CONV_BACK( gtk_label_get_text( label) ) );
-#else
-            return wxString( label->label );
-#endif
-        }
-        child = child->next;
-        count++;
+        GValue value = { 0, };
+        gtk_tree_model_get_value( model, &iter, m_stringCellIndex, &value );
+        wxString tmp = wxGTK_CONV_BACK( g_value_get_string( &value ) );
+        g_value_unset( &value );
+        return tmp;

     }
 
     }
 

-    wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") );
-
-    return wxT("");
+    return str;

 }
 
 }
 

-int wxChoice::GetCount() const
+unsigned int wxChoice::GetCount() const

 {
 {

-    wxCHECK_MSG( m_widget != NULL, 0, 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)
-    {
-        count++;
-        child = child->next;
-    }
-    return count;
+    wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid control") );
+
+    GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+    GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+    GtkTreeIter iter;
+    gtk_tree_model_get_iter_first( model, &iter );
+    if (!gtk_list_store_iter_is_valid(GTK_LIST_STORE(model), &iter ))
+        return 0;
+    unsigned int ret = 1;
+    while (gtk_tree_model_iter_next( model, &iter ))
+        ret++;
+    return ret;

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

-    wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid control") );

 
 

-    int tmp = n;
-    gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
-}
+    GTKDisableEvents();

 
 

-void wxChoice::ApplyWidgetStyle()
-{
-    SetWidgetStyle();
+    GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+    gtk_combo_box_set_active( combobox, n );

 
 

-    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
+    GTKEnableEvents();
+}

 
 

-    gtk_widget_set_style( m_widget, m_widgetStyle );
-    gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle );
+void wxChoice::SetColumns(int n)
+{
+    gtk_combo_box_set_wrap_width(GTK_COMBO_BOX(m_widget), n);
+}

 
 

-    GList *child = menu_shell->children;
-    while (child)
-    {
-        gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle );
+int wxChoice::GetColumns() const
+{
+    // gtk_combo_box_get_wrap_width() was added in gtk 2.6
+    gint intval;
+    g_object_get(G_OBJECT(m_widget), "wrap-width", &intval, NULL);
+    return intval;
+}

 
 

-        GtkBin *bin = GTK_BIN( child->data );
-        GtkWidget *label = (GtkWidget *) NULL;
-        if (bin->child)
-            label = bin->child;
-        if (!label)
-            label = BUTTON_CHILD(m_widget);
+void wxChoice::GTKDisableEvents()
+{
+    g_signal_handlers_block_by_func(m_widget,
+                                (gpointer) gtk_choice_changed_callback, this);
+}

 
 

-        gtk_widget_set_style( label, m_widgetStyle );
+void wxChoice::GTKEnableEvents()
+{
+    g_signal_handlers_unblock_by_func(m_widget,
+                                (gpointer) gtk_choice_changed_callback, this);
+}

 
 

-        child = child->next;
-    }
+GdkWindow *wxChoice::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
+{
+    return gtk_widget_get_window(m_widget);

 }
 
 }
 

-size_t wxChoice::GtkAppendHelper(GtkWidget *menu, const wxString& item)
+wxSize wxChoice::DoGetBestSize() const

 {
 {

-    GtkWidget *menu_item = gtk_menu_item_new_with_label( wxGTK_CONV( item ) );
+    // Get the height of the control from GTK+ itself, but use our own version
+    // to compute the width large enough to show all our strings as GTK+
+    // doesn't seem to take the control contents into account.
+    return GetSizeFromTextSize(wxChoiceBase::DoGetBestSize().x);
+}

 
 

-    size_t index;
-    if ( m_strings )
-    {
-        // sorted control, need to insert at the correct index
-        index = m_strings->Add(item);
-
-        gtk_menu_insert( GTK_MENU(menu), menu_item, index );
-
-        if ( index )
-        {
-            m_clientList.Insert( m_clientList.Item(index - 1),
-                                 (wxObject*) NULL );
-        }
-        else
-        {
-            m_clientList.Insert( (wxObject*) NULL );
-        }
-    }
-    else
-    {
-        // normal control, just append
-        gtk_menu_append( GTK_MENU(menu), menu_item );
+wxSize wxChoice::DoGetSizeFromTextSize(int xlen, int ylen) const
+{
+    wxASSERT_MSG( m_widget, wxS("GetSizeFromTextSize called before creation") );

 
 

-        m_clientList.Append( (wxObject*) NULL );
+    // a GtkEntry for wxComboBox and a GtkCellView for wxChoice
+    GtkWidget* childPart = gtk_bin_get_child(GTK_BIN(m_widget));

 
 

-        // 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;
-    }
+    // Set a as small as possible size for the control, so preferred sizes
+    // return "natural" sizes, not taking into account the previous ones (which
+    // seems to be GTK+3 behaviour)
+    gtk_widget_set_size_request(m_widget, 0, 0);

 
 

-    if (GTK_WIDGET_REALIZED(m_widget))
-    {
-        gtk_widget_realize( menu_item );
-        gtk_widget_realize( GTK_BIN(menu_item)->child );
+    // We are interested in the difference of sizes between the whole contol
+    // and its child part. I.e. arrow, separators, etc.
+    GtkRequisition req;
+    gtk_widget_get_preferred_size(childPart, NULL, &req);
+    wxSize totalS = GTKGetPreferredSize(m_widget);

 
 

-        if (m_widgetStyle) ApplyWidgetStyle();
-    }
+    wxSize tsize(xlen + totalS.x - req.width, totalS.y);

 
 

-    gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
-      GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
+    // For a wxChoice, not for wxComboBox, add some margins
+    if ( !GTK_IS_ENTRY(childPart) )
+        tsize.IncBy(5, 0);

 
 

-    gtk_widget_show( menu_item );
+    // Perhaps the user wants something different from CharHeight
+    if ( ylen > 0 )
+        tsize.IncBy(0, ylen - GetCharHeight());

 
 

-    // return the index of the item in the control
-    return index;
+    return tsize;

 }
 
 }
 

-wxSize wxChoice::DoGetBestSize() const
+void wxChoice::DoApplyWidgetStyle(GtkRcStyle *style)

 {
 {

-    wxSize ret( wxControl::DoGetBestSize() );
-
-    // we know better our horizontal extent: it depends on the longest string
-    // we have
-    ret.x = 0;
-    if ( m_widget )
-    {
-        GdkFont *font = m_font.GetInternalFont();
-
-        wxCoord width;
-        size_t count = GetCount();
-        for ( size_t n = 0; n < count; n++ )
-        {
-            // FIXME GTK 2.0
-            width = (wxCoord)gdk_string_width(font, wxGTK_CONV( GetString(n) ) );
-            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;
-
-    ret.y = 16 + gdk_char_height(GET_STYLE_FONT( m_widget->style ), 'H' );
-
-    return ret;
+    GTKApplyStyle(m_widget, style);
+    GTKApplyStyle(gtk_bin_get_child(GTK_BIN(m_widget)), style);

 }
 
 }
 

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

 
 

+#endif // wxUSE_CHOICE || wxUSE_COMBOBOX