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1. don't assert if we're passed an empty defaultDir and full path in
[wxWidgets.git] / src / gtk / window.cpp
index 870c4c9ccb057844172ab8e12964adb97c257d2a..4d3c7dafe9baa43ddce4c17bfe852c208169b832 100644 (file)
 #include "wx/window.h"
 
 #ifndef WX_PRECOMP
-    #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/app.h"
-    #include "wx/utils.h"
     #include "wx/frame.h"
     #include "wx/dcclient.h"
-#endif
-
-#include "wx/layout.h"
-#include "wx/dialog.h"
-#include "wx/msgdlg.h"
-#include "wx/module.h"
-#include "wx/combobox.h"
-#if wxUSE_TOOLBAR_NATIVE
-#include "wx/toolbar.h"
-#endif
-
-#if wxUSE_DRAG_AND_DROP
-    #include "wx/dnd.h"
-#endif
-
-#if wxUSE_TOOLTIPS
-    #include "wx/tooltip.h"
-#endif
-
-#if wxUSE_CARET
-    #include "wx/caret.h"
-#endif // wxUSE_CARET
-
-#if wxUSE_TEXTCTRL
+    #include "wx/menu.h"
+    #include "wx/settings.h"
+    #include "wx/msgdlg.h"
     #include "wx/textctrl.h"
+    #include "wx/radiobut.h"
+    #include "wx/toolbar.h"
+    #include "wx/combobox.h"
+    #include "wx/layout.h"
+    #include "wx/math.h"
 #endif
 
-#include "wx/menu.h"
-#include "wx/statusbr.h"
-#include "wx/settings.h"
+#include "wx/dnd.h"
+#include "wx/tooltip.h"
+#include "wx/caret.h"
 #include "wx/fontutil.h"
 
 #ifdef __WXDEBUG__
     #include "wx/thread.h"
 #endif
 
-#include "wx/math.h"
 #include <ctype.h>
 
 // FIXME: Due to a hack we use GtkCombo in here, which is deprecated since gtk2.3.0
 #include <gtk/gtkversion.h>
 #if defined(GTK_DISABLE_DEPRECATED) && GTK_CHECK_VERSION(2,3,0)
-#undef GTK_DISABLE_DEPRECATED
+    #undef GTK_DISABLE_DEPRECATED
+    #include <gtk/gtkcombo.h>
+    #define GTK_DISABLE_DEPRECATED
 #endif
 
 #include "wx/gtk/private.h"
-#include <gdk/gdkprivate.h>
+#include "wx/gtk/win_gtk.h"
 #include <gdk/gdkkeysyms.h>
 #include <gdk/gdkx.h>
 
-#include <gtk/gtk.h>
-#include <gtk/gtkprivate.h>
-
-#include "wx/gtk/win_gtk.h"
-
-#include <pango/pangox.h>
-
-#ifdef HAVE_XIM
-    #undef HAVE_XIM
-#endif
-
-extern GtkContainerClass *pizza_parent_class;
-
 //-----------------------------------------------------------------------------
 // documentation on internals
 //-----------------------------------------------------------------------------
@@ -127,7 +97,7 @@ extern GtkContainerClass *pizza_parent_class;
    6) Display a border (sunken, raised, simple or none).
 
    Normally one might expect, that one wxWidgets window would always correspond
-   to one GTK widget. Under GTK, there is no such allround widget that has all
+   to one GTK widget. Under GTK, there is no such all-round widget that has all
    the functionality. Moreover, the GTK defines a client area as a different
    widget from the actual widget you are handling. Last but not least some
    special classes (e.g. wxFrame) handle different categories of widgets and
@@ -172,14 +142,14 @@ extern GtkContainerClass *pizza_parent_class;
    clicking on a scrollbar belonging to scrolled window will inevitably move
    the window. In wxWidgets, the scrollbar will only emit an event, send this
    to (normally) a wxScrolledWindow and that class will call ScrollWindow()
-   which actually moves the window and its subchildren. Note that GtkPizza
+   which actually moves the window and its sub-windows. Note that GtkPizza
    memorizes how much it has been scrolled but that wxWidgets forgets this
    so that the two coordinates systems have to be kept in synch. This is done
    in various places using the pizza->xoffset and pizza->yoffset values.
 
    III)
 
-   Singularily the most broken code in GTK is the code that is supposed to
+   Singularly the most broken code in GTK is the code that is supposed to
    inform subwindows (child windows) about new positions. Very often, duplicate
    events are sent without changes in size or position, equally often no
    events are sent at all (All this is due to a bug in the GtkContainer code
@@ -220,13 +190,10 @@ extern GtkContainerClass *pizza_parent_class;
 // data
 //-----------------------------------------------------------------------------
 
-extern wxList     wxPendingDelete;
 extern bool       g_blockEventsOnDrag;
 extern bool       g_blockEventsOnScroll;
 extern wxCursor   g_globalCursor;
 
-static GdkGC *g_eraseGC = NULL;
-
 // mouse capture state: the window which has it and if the mouse is currently
 // inside it
 static wxWindowGTK  *g_captureWindow = (wxWindowGTK*) NULL;
@@ -243,6 +210,11 @@ wxWindowGTK *g_focusWindowLast = (wxWindowGTK*) NULL;
 // yet, defer setting the focus to idle time.
 wxWindowGTK *g_delayedFocus = (wxWindowGTK*) NULL;
 
+// global variables because GTK+ DnD want to have the
+// mouse event that caused it
+GdkEvent    *g_lastMouseEvent = (GdkEvent*) NULL;
+int          g_lastButtonNumber = 0;
+
 extern bool g_mainThreadLocked;
 
 //-----------------------------------------------------------------------------
@@ -349,14 +321,6 @@ static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
     if (!win->m_hasVMT)
         return;
 
-    int dw = 0;
-    int dh = 0;
-
-    if (win->m_hasScrolling)
-    {
-        GetScrollbarWidth(widget, dw, dh);
-    }
-
     int dx = 0;
     int dy = 0;
     if (GTK_WIDGET_NO_WINDOW (widget))
@@ -365,6 +329,27 @@ static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
         dy += widget->allocation.y;
     }
 
+    int x = dx;
+    int y = dy;
+
+    int dw = 0;
+    int dh = 0;
+    if (win->m_hasScrolling)
+    {
+        GetScrollbarWidth(widget, dw, dh);
+
+        if (win->GetLayoutDirection() == wxLayout_RightToLeft)
+        {
+            // This is actually wrong for old GTK+ version
+            // which do not display the scrollbar on the
+            // left side in RTL
+            x += dw;
+        }
+    }
+
+    int w = widget->allocation.width-dw;
+    int h = widget->allocation.height-dh;
+
     if (win->HasFlag(wxRAISED_BORDER))
     {
         gtk_paint_shadow (widget->style,
@@ -372,8 +357,7 @@ static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
                           GTK_STATE_NORMAL,
                           GTK_SHADOW_OUT,
                           NULL, NULL, NULL, // FIXME: No clipping?
-                          dx, dy,
-                          widget->allocation.width-dw, widget->allocation.height-dh );
+                          x, y, w, h );
         return;
     }
 
@@ -384,8 +368,7 @@ static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
                           GTK_STATE_NORMAL,
                           GTK_SHADOW_IN,
                           NULL, NULL, NULL, // FIXME: No clipping?
-                          dx, dy,
-                          widget->allocation.width-dw, widget->allocation.height-dh );
+                          x, y, w, h );
         return;
     }
 
@@ -394,9 +377,7 @@ static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
         GdkGC *gc;
         gc = gdk_gc_new( widget->window );
         gdk_gc_set_foreground( gc, &widget->style->black );
-        gdk_draw_rectangle( widget->window, gc, FALSE,
-                         dx, dy,
-                         widget->allocation.width-dw-1, widget->allocation.height-dh-1 );
+        gdk_draw_rectangle( widget->window, gc, FALSE, x, y, w-1, h-1 );
         g_object_unref (gc);
         return;
     }
@@ -413,13 +394,9 @@ gtk_window_own_expose_callback( GtkWidget *widget,
                                 GdkEventExpose *gdk_event,
                                 wxWindowGTK *win )
 {
-    if (gdk_event->count > 0) return FALSE;
-
-    draw_frame( widget, win );
-
-    (* GTK_WIDGET_CLASS (pizza_parent_class)->expose_event) (widget, gdk_event);
-
-    return TRUE;
+    if (gdk_event->count == 0)
+        draw_frame(widget, win);
+    return false;
 }
 }
 
@@ -466,10 +443,16 @@ void wxgtk_combo_size_request_callback(GtkWidget *widget,
     GtkRequisition entry_req;
     entry_req.width = 2;
     entry_req.height = 2;
+    (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(gcombo->entry) )->size_request )
+        (gcombo->entry, &entry_req );
+
+    GtkRequisition button_req;
+    button_req.width = 2;
+    button_req.height = 2;
     (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(gcombo->button) )->size_request )
-        (gcombo->button, &entry_req );
+        (gcombo->button, &button_req );
 
-    requisition->width = w - entry_req.width;
+    requisition->width = w - button_req.width;
     requisition->height = entry_req.height;
 }
 }
@@ -486,15 +469,20 @@ gtk_window_expose_callback( GtkWidget *widget,
 {
     DEBUG_MAIN_THREAD
 
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    // don't need to install idle handler, its done from "event" signal
 
     // This callback gets called in drawing-idle time under
     // GTK 2.0, so we don't need to defer anything to idle
     // time anymore.
 
     GtkPizza *pizza = GTK_PIZZA( widget );
-    if (gdk_event->window != pizza->bin_window) return FALSE;
+    if (gdk_event->window != pizza->bin_window)
+    {
+        // block expose events on GTK_WIDGET(pizza)->window,
+        //   all drawing is done on pizza->bin_window
+        return true;
+    }
+
 
 #if 0
     if (win->GetName())
@@ -525,10 +513,7 @@ gtk_window_expose_callback( GtkWidget *widget,
 
     win->GtkSendPaintEvents();
 
-
     // Let parent window draw window-less widgets
-    (* GTK_WIDGET_CLASS (pizza_parent_class)->expose_event) (widget, gdk_event);
-
     return FALSE;
 }
 }
@@ -537,6 +522,18 @@ gtk_window_expose_callback( GtkWidget *widget,
 // "key_press_event" from any window
 //-----------------------------------------------------------------------------
 
+// These are used when transforming Ctrl-alpha to ascii values 1-26
+inline bool wxIsLowerChar(int code)
+{
+    return (code >= 'a' && code <= 'z' );
+}
+
+inline bool wxIsUpperChar(int code)
+{
+    return (code >= 'A' && code <= 'Z' );
+}
+
+
 // set WXTRACE to this to see the key event codes on the console
 #define TRACE_KEYS  _T("keyevent")
 
@@ -985,8 +982,7 @@ gtk_window_key_press_callback( GtkWidget *widget,
 {
     DEBUG_MAIN_THREAD
 
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    // don't need to install idle handler, its done from "event" signal
 
     if (!win->m_hasVMT)
         return FALSE;
@@ -1088,9 +1084,13 @@ gtk_window_key_press_callback( GtkWidget *widget,
 
             // To conform to the docs we need to translate Ctrl-alpha
             // characters to values in the range 1-26.
-            if (event.ControlDown() && key_code >= 'a' && key_code <= 'z' )
+            if ( event.ControlDown() &&
+                 ( wxIsLowerChar(key_code) || wxIsUpperChar(key_code) ))
             {
-                event.m_keyCode = key_code - 'a' + 1;
+                if ( wxIsLowerChar(key_code) )
+                    event.m_keyCode = key_code - 'a' + 1;
+                if ( wxIsUpperChar(key_code) )
+                    event.m_keyCode = key_code - 'A' + 1;
 #if wxUSE_UNICODE
                 event.m_uniChar = event.m_keyCode;
 #endif
@@ -1114,10 +1114,6 @@ gtk_window_key_press_callback( GtkWidget *widget,
         }
     }
 
-
-
-
-
     // win is a control: tab can be propagated up
     if ( !ret &&
          ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab)) &&
@@ -1142,50 +1138,7 @@ gtk_window_key_press_callback( GtkWidget *widget,
         ret = win->GetParent()->GetEventHandler()->ProcessEvent( new_event );
     }
 
-    // generate wxID_CANCEL if <esc> has been pressed (typically in dialogs)
-    if ( !ret &&
-         (gdk_event->keyval == GDK_Escape) )
-    {
-        // however only do it if we have a Cancel button in the dialog,
-        // otherwise the user code may get confused by the events from a
-        // non-existing button and, worse, a wxButton might get button event
-        // from another button which is not really expected
-        wxWindow *winForCancel = win,
-                 *btnCancel = NULL;
-        while ( winForCancel )
-        {
-            btnCancel = winForCancel->FindWindow(wxID_CANCEL);
-            if ( btnCancel )
-            {
-                // found a cancel button
-                break;
-            }
-
-            if ( winForCancel->IsTopLevel() )
-            {
-                // no need to look further
-                break;
-            }
-
-            // maybe our parent has a cancel button?
-            winForCancel = winForCancel->GetParent();
-        }
-
-        if ( btnCancel )
-        {
-            wxCommandEvent eventClick(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
-            eventClick.SetEventObject(btnCancel);
-            ret = btnCancel->GetEventHandler()->ProcessEvent(eventClick);
-        }
-    }
-
-    if (ret)
-    {
-        g_signal_stop_emission_by_name (widget, "key_press_event");
-        return TRUE;
-    }
-
-    return FALSE;
+    return ret;
 }
 }
 
@@ -1229,8 +1182,14 @@ gtk_wxwindow_commit_cb (GtkIMContext *context,
 
         // To conform to the docs we need to translate Ctrl-alpha
         // characters to values in the range 1-26.
-        if (event.ControlDown() && *pstr >= 'a' && *pstr <= 'z' )
+        if ( event.ControlDown() &&
+             ( wxIsLowerChar(*pstr) || wxIsUpperChar(*pstr) ))
         {
+            if ( wxIsLowerChar(*pstr) )
+                event.m_keyCode = *pstr - 'a' + 1;
+            if ( wxIsUpperChar(*pstr) )
+                event.m_keyCode = *pstr - 'A' + 1;
+
             event.m_keyCode = *pstr - 'a' + 1;
 #if wxUSE_UNICODE
             event.m_uniChar = event.m_keyCode;
@@ -1265,8 +1224,7 @@ gtk_window_key_release_callback( GtkWidget *widget,
 {
     DEBUG_MAIN_THREAD
 
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    // don't need to install idle handler, its done from "event" signal
 
     if (!win->m_hasVMT)
         return FALSE;
@@ -1281,11 +1239,7 @@ gtk_window_key_release_callback( GtkWidget *widget,
         return FALSE;
     }
 
-    if ( !win->GetEventHandler()->ProcessEvent( event ) )
-        return FALSE;
-
-    g_signal_stop_emission_by_name (widget, "key_release_event");
-    return TRUE;
+    return win->GTKProcessEvent(event);
 }
 }
 
@@ -1324,6 +1278,13 @@ template<typename T> void InitMouseEvent(wxWindowGTK *win,
     event.m_x = (wxCoord)gdk_event->x - pt.x;
     event.m_y = (wxCoord)gdk_event->y - pt.y;
 
+    if ((win->m_wxwindow) && (win->GetLayoutDirection() == wxLayout_RightToLeft))
+    {
+        // origin in the upper right corner
+        int window_width = gtk_pizza_get_rtl_offset( GTK_PIZZA(win->m_wxwindow) );
+        event.m_x = window_width - event.m_x;
+    }
+
     event.SetEventObject( win );
     event.SetId( win->GetId() );
     event.SetTimestamp( gdk_event->time );
@@ -1371,8 +1332,8 @@ wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
     if (win->m_wxwindow)
     {
         GtkPizza *pizza = GTK_PIZZA(win->m_wxwindow);
-        xx += pizza->xoffset;
-        yy += pizza->yoffset;
+        xx += gtk_pizza_get_xoffset( pizza );
+        yy += gtk_pizza_get_yoffset( pizza );
     }
 
     wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
@@ -1427,48 +1388,96 @@ wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
     return win;
 }
 
+// ----------------------------------------------------------------------------
+// common event handlers helpers
+// ----------------------------------------------------------------------------
+
+bool wxWindowGTK::GTKProcessEvent(wxEvent& event) const
+{
+    // nothing special at this level
+    return GetEventHandler()->ProcessEvent(event);
+}
+
+int wxWindowGTK::GTKCallbackCommonPrologue(GdkEventAny *event) const
+{
+    DEBUG_MAIN_THREAD
+
+    // don't need to install idle handler, its done from "event" signal
+
+    if (!m_hasVMT)
+        return FALSE;
+    if (g_blockEventsOnDrag)
+        return TRUE;
+    if (g_blockEventsOnScroll)
+        return TRUE;
+
+    if (!GTKIsOwnWindow(event->window))
+        return FALSE;
+
+    return -1;
+}
+
+// overloads for all GDK event types we use here: we need to have this as
+// GdkEventXXX can't be implicitly cast to GdkEventAny even if it, in fact,
+// derives from it in the sense that the structs have the same layout
+#define wxDEFINE_COMMON_PROLOGUE_OVERLOAD(T)                                  \
+    static int wxGtkCallbackCommonPrologue(T *event, wxWindowGTK *win)        \
+    {                                                                         \
+        return win->GTKCallbackCommonPrologue((GdkEventAny *)event);          \
+    }
+
+wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventButton)
+wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventMotion)
+wxDEFINE_COMMON_PROLOGUE_OVERLOAD(GdkEventCrossing)
+
+#undef wxDEFINE_COMMON_PROLOGUE_OVERLOAD
+
+#define wxCOMMON_CALLBACK_PROLOGUE(event, win)                                \
+    const int rc = wxGtkCallbackCommonPrologue(event, win);                   \
+    if ( rc != -1 )                                                           \
+        return rc
+
+// send the wxChildFocusEvent and wxFocusEvent, common code of
+// gtk_window_focus_in_callback() and SetFocus()
+static bool DoSendFocusEvents(wxWindow *win)
+{
+    // Notify the parent keeping track of focus for the kbd navigation
+    // purposes that we got it.
+    wxChildFocusEvent eventChildFocus(win);
+    (void)win->GetEventHandler()->ProcessEvent(eventChildFocus);
+
+    wxFocusEvent eventFocus(wxEVT_SET_FOCUS, win->GetId());
+    eventFocus.SetEventObject(win);
+
+    return win->GetEventHandler()->ProcessEvent(eventFocus);
+}
+
+// all event handlers must have C linkage as they're called from GTK+ C code
+extern "C"
+{
+
 //-----------------------------------------------------------------------------
 // "button_press_event"
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static gboolean
 gtk_window_button_press_callback( GtkWidget *widget,
                                   GdkEventButton *gdk_event,
                                   wxWindowGTK *win )
 {
-    DEBUG_MAIN_THREAD
-
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-/*
-    wxPrintf( wxT("1) OnButtonPress from ") );
-    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
-        wxPrintf( win->GetClassInfo()->GetClassName() );
-    wxPrintf( wxT(".\n") );
-*/
-    if (!win->m_hasVMT) return FALSE;
-    if (g_blockEventsOnDrag) return TRUE;
-    if (g_blockEventsOnScroll) return TRUE;
+    wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
 
-    if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
+    g_lastButtonNumber = gdk_event->button;
 
     if (win->m_wxwindow && (g_focusWindow != win) && win->AcceptsFocus())
     {
         gtk_widget_grab_focus( win->m_wxwindow );
-/*
-        wxPrintf( wxT("GrabFocus from ") );
-        if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
-            wxPrintf( win->GetClassInfo()->GetClassName() );
-        wxPrintf( wxT(".\n") );
-*/
     }
 
     // GDK sends surplus button down events
     // before a double click event. We
     // need to filter these out.
-    if (gdk_event->type == GDK_BUTTON_PRESS)
+    if ((gdk_event->type == GDK_BUTTON_PRESS) && (win->m_wxwindow))
     {
         GdkEvent *peek_event = gdk_event_peek();
         if (peek_event)
@@ -1576,6 +1585,8 @@ gtk_window_button_press_callback( GtkWidget *widget,
         return FALSE;
     }
 
+    g_lastMouseEvent = (GdkEvent*) gdk_event;
+
     wxMouseEvent event( event_type );
     InitMouseEvent( win, event, gdk_event );
 
@@ -1595,11 +1606,10 @@ gtk_window_button_press_callback( GtkWidget *widget,
     event.SetEventObject( win );
     event.SetId( win->GetId() );
 
-    if (win->GetEventHandler()->ProcessEvent( event ))
-    {
-        g_signal_stop_emission_by_name (widget, "button_press_event");
+    bool ret = win->GTKProcessEvent( event );
+    g_lastMouseEvent = NULL;
+    if ( ret )
         return TRUE;
-    }
 
     if (event_type == wxEVT_RIGHT_DOWN)
     {
@@ -1615,33 +1625,24 @@ gtk_window_button_press_callback( GtkWidget *widget,
             win->GetId(),
             win->ClientToScreen(event.GetPosition()));
         evtCtx.SetEventObject(win);
-        return win->GetEventHandler()->ProcessEvent(evtCtx);
+        return win->GTKProcessEvent(evtCtx);
     }
 
     return FALSE;
 }
-}
 
 //-----------------------------------------------------------------------------
 // "button_release_event"
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static gboolean
 gtk_window_button_release_callback( GtkWidget *widget,
                                     GdkEventButton *gdk_event,
                                     wxWindowGTK *win )
 {
-    DEBUG_MAIN_THREAD
-
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-    if (!win->m_hasVMT) return FALSE;
-    if (g_blockEventsOnDrag) return FALSE;
-    if (g_blockEventsOnScroll) return FALSE;
+    wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
 
-    if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
+    g_lastButtonNumber = 0;
 
     wxEventType event_type = wxEVT_NULL;
 
@@ -1660,10 +1661,12 @@ gtk_window_button_release_callback( GtkWidget *widget,
             break;
 
         default:
-            // unknwon button, don't process
+            // unknown button, don't process
             return FALSE;
     }
 
+    g_lastMouseEvent = (GdkEvent*) gdk_event;
+
     wxMouseEvent event( event_type );
     InitMouseEvent( win, event, gdk_event );
 
@@ -1679,36 +1682,19 @@ gtk_window_button_release_callback( GtkWidget *widget,
     event.SetEventObject( win );
     event.SetId( win->GetId() );
 
-    if (win->GetEventHandler()->ProcessEvent( event ))
-    {
-        g_signal_stop_emission_by_name (widget, "button_release_event");
-        return TRUE;
-    }
-
-    return FALSE;
-}
+    return win->GTKProcessEvent(event);
 }
 
 //-----------------------------------------------------------------------------
 // "motion_notify_event"
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static gboolean
 gtk_window_motion_notify_callback( GtkWidget *widget,
                                    GdkEventMotion *gdk_event,
                                    wxWindowGTK *win )
 {
-    DEBUG_MAIN_THREAD
-
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-    if (!win->m_hasVMT) return FALSE;
-    if (g_blockEventsOnDrag) return FALSE;
-    if (g_blockEventsOnScroll) return FALSE;
-
-    if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
+    wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
 
     if (gdk_event->is_hint)
     {
@@ -1720,19 +1706,14 @@ gtk_window_motion_notify_callback( GtkWidget *widget,
         gdk_event->y = y;
     }
 
-/*
-    printf( "OnMotion from " );
-    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
-      printf( win->GetClassInfo()->GetClassName() );
-    printf( ".\n" );
-*/
+    g_lastMouseEvent = (GdkEvent*) gdk_event;
 
     wxMouseEvent event( wxEVT_MOTION );
     InitMouseEvent(win, event, gdk_event);
 
     if ( g_captureWindow )
     {
-        // synthetize a mouse enter or leave event if needed
+        // synthesise a mouse enter or leave event if needed
         GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
         // This seems to be necessary and actually been added to
         // GDK itself in version 2.0.X
@@ -1748,7 +1729,7 @@ gtk_window_motion_notify_callback( GtkWidget *widget,
                                                         : wxEVT_LEAVE_WINDOW);
             InitMouseEvent(win, eventM, gdk_event);
             eventM.SetEventObject(win);
-            win->GetEventHandler()->ProcessEvent(eventM);
+            win->GTKProcessEvent(eventM);
         }
     }
     else // no capture
@@ -1763,34 +1744,29 @@ gtk_window_motion_notify_callback( GtkWidget *widget,
     if ( !g_captureWindow )
     {
         wxSetCursorEvent cevent( event.m_x, event.m_y );
-        if (win->GetEventHandler()->ProcessEvent( cevent ))
+        if (win->GTKProcessEvent( cevent ))
         {
-            // Rewrite cursor handling here (away from idle).
+            win->SetCursor( cevent.GetCursor() );
         }
     }
 
-    if (win->GetEventHandler()->ProcessEvent( event ))
-    {
-        g_signal_stop_emission_by_name (widget, "motion_notify_event");
-        return TRUE;
-    }
+    bool ret = win->GTKProcessEvent(event);
 
-    return FALSE;
-}
+    g_lastMouseEvent = NULL;
+
+    return ret;
 }
 
 //-----------------------------------------------------------------------------
 // "scroll_event", (mouse wheel event)
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static gboolean
 window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
 {
     DEBUG_MAIN_THREAD
 
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    // don't need to install idle handler, its done from "event" signal
 
     if (gdk_event->direction != GDK_SCROLL_UP &&
         gdk_event->direction != GDK_SCROLL_DOWN)
@@ -1823,45 +1799,24 @@ window_scroll_event(GtkWidget*, GdkEventScroll* gdk_event, wxWindow* win)
     event.SetId( win->GetId() );
     event.SetTimestamp( gdk_event->time );
 
-    return win->GetEventHandler()->ProcessEvent(event);
-}
+    return win->GTKProcessEvent(event);
 }
 
 //-----------------------------------------------------------------------------
 // "popup-menu"
 //-----------------------------------------------------------------------------
-extern "C" {
+
 static gboolean wxgtk_window_popup_menu_callback(GtkWidget*, wxWindowGTK* win)
 {
-    wxContextMenuEvent event(
-        wxEVT_CONTEXT_MENU,
-        win->GetId(),
-        wxPoint(-1, -1));
+    wxContextMenuEvent event(wxEVT_CONTEXT_MENU, win->GetId(), wxPoint(-1, -1));
     event.SetEventObject(win);
-    return win->GetEventHandler()->ProcessEvent(event);
-}
+    return win->GTKProcessEvent(event);
 }
 
 //-----------------------------------------------------------------------------
 // "focus_in_event"
 //-----------------------------------------------------------------------------
 
-// send the wxChildFocusEvent and wxFocusEvent, common code of
-// gtk_window_focus_in_callback() and SetFocus()
-static bool DoSendFocusEvents(wxWindow *win)
-{
-    // Notify the parent keeping track of focus for the kbd navigation
-    // purposes that we got it.
-    wxChildFocusEvent eventChildFocus(win);
-    (void)win->GetEventHandler()->ProcessEvent(eventChildFocus);
-
-    wxFocusEvent eventFocus(wxEVT_SET_FOCUS, win->GetId());
-    eventFocus.SetEventObject(win);
-
-    return win->GetEventHandler()->ProcessEvent(eventFocus);
-}
-
-extern "C" {
 static gboolean
 gtk_window_focus_in_callback( GtkWidget *widget,
                               GdkEventFocus *WXUNUSED(event),
@@ -1869,8 +1824,7 @@ gtk_window_focus_in_callback( GtkWidget *widget,
 {
     DEBUG_MAIN_THREAD
 
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    // don't need to install idle handler, its done from "event" signal
 
     if (win->m_imData)
         gtk_im_context_focus_in(win->m_imData->context);
@@ -1881,11 +1835,6 @@ gtk_window_focus_in_callback( GtkWidget *widget,
     wxLogTrace(TRACE_FOCUS,
                _T("%s: focus in"), win->GetName().c_str());
 
-#ifdef HAVE_XIM
-    if (win->m_ic)
-        gdk_im_begin(win->m_ic, win->m_wxwindow->window);
-#endif
-
 #if wxUSE_CARET
     // caret needs to be informed about focus change
     wxCaret *caret = win->GetCaret();
@@ -1915,13 +1864,11 @@ gtk_window_focus_in_callback( GtkWidget *widget,
 
     return FALSE;
 }
-}
 
 //-----------------------------------------------------------------------------
 // "focus_out_event"
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static gboolean
 gtk_window_focus_out_callback( GtkWidget *widget,
                                GdkEventFocus *gdk_event,
@@ -1929,8 +1876,7 @@ gtk_window_focus_out_callback( GtkWidget *widget,
 {
     DEBUG_MAIN_THREAD
 
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    // don't need to install idle handler, its done from "event" signal
 
     if (win->m_imData)
         gtk_im_context_focus_out(win->m_imData->context);
@@ -1945,11 +1891,6 @@ gtk_window_focus_out_callback( GtkWidget *widget,
 
     g_focusWindow = (wxWindowGTK *)NULL;
 
-#ifdef HAVE_XIM
-    if (win->m_ic)
-        gdk_im_end();
-#endif
-
 #if wxUSE_CARET
     // caret needs to be informed about focus change
     wxCaret *caret = win->GetCaret();
@@ -1970,7 +1911,7 @@ gtk_window_focus_out_callback( GtkWidget *widget,
         wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
         event.SetEventObject( win );
 
-        (void)win->GetEventHandler()->ProcessEvent( event );
+        (void)win->GTKProcessEvent( event );
 
         ret = TRUE;
     }
@@ -1982,31 +1923,21 @@ gtk_window_focus_out_callback( GtkWidget *widget,
 
     return FALSE;
 }
-}
 
 //-----------------------------------------------------------------------------
 // "enter_notify_event"
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static gboolean
 gtk_window_enter_callback( GtkWidget *widget,
                            GdkEventCrossing *gdk_event,
                            wxWindowGTK *win )
 {
-    DEBUG_MAIN_THREAD
-
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-    if (!win->m_hasVMT) return FALSE;
-    if (g_blockEventsOnDrag) return FALSE;
+    wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
 
     // Event was emitted after a grab
     if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
 
-    if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
-
     int x = 0;
     int y = 0;
     GdkModifierType state = (GdkModifierType)0;
@@ -2022,45 +1953,29 @@ gtk_window_enter_callback( GtkWidget *widget,
     if ( !g_captureWindow )
     {
         wxSetCursorEvent cevent( event.m_x, event.m_y );
-        if (win->GetEventHandler()->ProcessEvent( cevent ))
+        if (win->GTKProcessEvent( cevent ))
         {
-            // Rewrite cursor handling here (away from idle).
+            win->SetCursor( cevent.GetCursor() );
         }
     }
 
-    if (win->GetEventHandler()->ProcessEvent( event ))
-    {
-       g_signal_stop_emission_by_name (widget, "enter_notify_event");
-       return TRUE;
-    }
-
-    return FALSE;
-}
+    return win->GTKProcessEvent(event);
 }
 
 //-----------------------------------------------------------------------------
 // "leave_notify_event"
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static gboolean
 gtk_window_leave_callback( GtkWidget *widget,
                            GdkEventCrossing *gdk_event,
                            wxWindowGTK *win )
 {
-    DEBUG_MAIN_THREAD
-
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-    if (!win->m_hasVMT) return FALSE;
-    if (g_blockEventsOnDrag) return FALSE;
+    wxCOMMON_CALLBACK_PROLOGUE(gdk_event, win);
 
     // Event was emitted after an ungrab
     if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
 
-    if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
-
     wxMouseEvent event( wxEVT_LEAVE_WINDOW );
     event.SetTimestamp( gdk_event->time );
     event.SetEventObject( win );
@@ -2083,21 +1998,13 @@ gtk_window_leave_callback( GtkWidget *widget,
     event.m_x = x + pt.x;
     event.m_y = y + pt.y;
 
-    if (win->GetEventHandler()->ProcessEvent( event ))
-    {
-        g_signal_stop_emission_by_name (widget, "leave_notify_event");
-        return TRUE;
-    }
-
-    return FALSE;
-}
+    return win->GTKProcessEvent(event);
 }
 
 //-----------------------------------------------------------------------------
 // "value_changed" from scrollbar
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static void
 gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
 {
@@ -2106,41 +2013,63 @@ gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
     {
         // Convert scroll event type to scrollwin event type
         eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
-        const int orient = range == win->m_scrollBar[0] ? wxHORIZONTAL : wxVERTICAL;
+
+        // find the scrollbar which generated the event
+        wxWindowGTK::ScrollDir dir = win->ScrollDirFromRange(range);
+
+        // generate the corresponding wx event
+        const int orient = wxWindow::OrientFromScrollDir(dir);
         wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
         event.SetEventObject(win);
-        win->GetEventHandler()->ProcessEvent(event);
+
+        win->m_blockValueChanged[dir] = true;
+        win->GTKProcessEvent(event);
+        win->m_blockValueChanged[dir] = false;
     }
 }
-}
 
 //-----------------------------------------------------------------------------
 // "button_press_event" from scrollbar
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static gboolean
 gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
 {
     DEBUG_MAIN_THREAD
 
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    // don't need to install idle handler, its done from "event" signal
 
     g_blockEventsOnScroll = true;
     win->m_mouseButtonDown = true;
 
     return false;
 }
-}
 
 //-----------------------------------------------------------------------------
-// "button_release_event" from scrollbar
+// "event_after" from scrollbar
 //-----------------------------------------------------------------------------
 
-extern "C" {
-static gboolean
-gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
+static void
+gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
+{
+    if (event->type == GDK_BUTTON_RELEASE)
+    {
+        g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
+
+        const int orient = wxWindow::OrientFromScrollDir(
+                                        win->ScrollDirFromRange(range));
+        wxScrollWinEvent event(wxEVT_SCROLLWIN_THUMBRELEASE, win->GetScrollPos(orient), orient);
+        event.SetEventObject(win);
+        win->GTKProcessEvent(event);
+    }
+}
+
+//-----------------------------------------------------------------------------
+// "button_release_event" from scrollbar
+//-----------------------------------------------------------------------------
+
+static gboolean
+gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
 {
     DEBUG_MAIN_THREAD
 
@@ -2150,26 +2079,14 @@ gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* w
     if (win->m_isScrolling)
     {
         win->m_isScrolling = false;
-        const int orient = range == win->m_scrollBar[0] ? wxHORIZONTAL : wxVERTICAL;
-        wxScrollWinEvent event(wxEVT_SCROLLWIN_THUMBRELEASE, win->GetScrollPos(orient), orient);
-        event.SetEventObject(win);
-        win->GetEventHandler()->ProcessEvent(event);
+        // Hook up handler to send thumb release event after this emission is finished.
+        // To allow setting scroll position from event handler, sending event must
+        // be deferred until after the GtkRange handler for this signal has run
+        g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
     }
 
     return false;
 }
-}
-
-// ----------------------------------------------------------------------------
-// this wxWindowBase function is implemented here (in platform-specific file)
-// because it is static and so couldn't be made virtual
-// ----------------------------------------------------------------------------
-
-wxWindow *wxWindowBase::DoFindFocus()
-{
-    // the cast is necessary when we compile in wxUniversal mode
-    return (wxWindow *)g_focusWindow;
-}
 
 //-----------------------------------------------------------------------------
 // "realize" from m_widget
@@ -2178,7 +2095,6 @@ wxWindow *wxWindowBase::DoFindFocus()
 /* We cannot set colours and fonts before the widget has
    been realized, so we do this directly after realization. */
 
-extern "C" {
 static void
 gtk_window_realized_callback( GtkWidget *m_widget, wxWindow *win )
 {
@@ -2196,18 +2112,16 @@ gtk_window_realized_callback( GtkWidget *m_widget, wxWindow *win )
 
     wxWindowCreateEvent event( win );
     event.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent( event );
-}
+    win->GTKProcessEvent( event );
 }
 
 //-----------------------------------------------------------------------------
 // "size_allocate"
 //-----------------------------------------------------------------------------
 
-extern "C" {
 static
 void gtk_window_size_callback( GtkWidget *WXUNUSED(widget),
-                               GtkAllocation *WXUNUSED(alloc),
+                               GtkAllocation *alloc,
                                wxWindow *win )
 {
     if (g_isIdle)
@@ -2219,6 +2133,17 @@ void gtk_window_size_callback( GtkWidget *WXUNUSED(widget),
     if ((client_width == win->m_oldClientWidth) && (client_height == win->m_oldClientHeight))
         return;
 
+#if 0
+        wxPrintf( wxT("size_allocate ") );
+        if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
+            wxPrintf( win->GetClassInfo()->GetClassName() );
+        wxPrintf( wxT(" %d %d %d %d\n"),
+                alloc->x,
+                alloc->y,
+                alloc->width,
+                alloc->height );
+#endif
+
     win->m_oldClientWidth = client_width;
     win->m_oldClientHeight = client_height;
 
@@ -2226,137 +2151,21 @@ void gtk_window_size_callback( GtkWidget *WXUNUSED(widget),
     {
         wxSizeEvent event( win->GetSize(), win->GetId() );
         event.SetEventObject( win );
-        win->GetEventHandler()->ProcessEvent( event );
+        win->GTKProcessEvent( event );
     }
 }
-}
 
+} // extern "C"
 
-#ifdef HAVE_XIM
-    #define WXUNUSED_UNLESS_XIM(param)  param
-#else
-    #define WXUNUSED_UNLESS_XIM(param)  WXUNUSED(param)
-#endif
-
-/* Resize XIM window */
-
-extern "C" {
-static
-void gtk_wxwindow_size_callback( GtkWidget* WXUNUSED_UNLESS_XIM(widget),
-                                 GtkAllocation* WXUNUSED_UNLESS_XIM(alloc),
-                                 wxWindowGTK* WXUNUSED_UNLESS_XIM(win) )
-{
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-#ifdef HAVE_XIM
-    if (!win->m_ic)
-        return;
-
-    if  (gdk_ic_get_style (win->m_ic) & GDK_IM_PREEDIT_POSITION)
-    {
-        gint width, height;
-
-        gdk_drawable_get_size (widget->window, &width, &height);
-        win->m_icattr->preedit_area.width = width;
-        win->m_icattr->preedit_area.height = height;
-        gdk_ic_set_attr (win->m_ic, win->m_icattr, GDK_IC_PREEDIT_AREA);
-    }
-#endif // HAVE_XIM
-}
-}
-
-//-----------------------------------------------------------------------------
-// "realize" from m_wxwindow
-//-----------------------------------------------------------------------------
-
-/* Initialize XIM support */
+// ----------------------------------------------------------------------------
+// this wxWindowBase function is implemented here (in platform-specific file)
+// because it is static and so couldn't be made virtual
+// ----------------------------------------------------------------------------
 
-extern "C" {
-static void
-gtk_wxwindow_realized_callback( GtkWidget * WXUNUSED_UNLESS_XIM(widget),
-                                wxWindowGTK * WXUNUSED_UNLESS_XIM(win) )
+wxWindow *wxWindowBase::DoFindFocus()
 {
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-#ifdef HAVE_XIM
-    if (win->m_ic) return;
-    if (!widget) return;
-    if (!gdk_im_ready()) return;
-
-    win->m_icattr = gdk_ic_attr_new();
-    if (!win->m_icattr) return;
-
-    gint width, height;
-    GdkEventMask mask;
-    GdkColormap *colormap;
-    GdkICAttr *attr = win->m_icattr;
-    unsigned attrmask = GDK_IC_ALL_REQ;
-    GdkIMStyle style;
-    GdkIMStyle supported_style = (GdkIMStyle)
-                                  (GDK_IM_PREEDIT_NONE |
-                                   GDK_IM_PREEDIT_NOTHING |
-                                   GDK_IM_PREEDIT_POSITION |
-                                   GDK_IM_STATUS_NONE |
-                                   GDK_IM_STATUS_NOTHING);
-
-    if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
-        supported_style = (GdkIMStyle)(supported_style & ~GDK_IM_PREEDIT_POSITION);
-
-    attr->style = style = gdk_im_decide_style (supported_style);
-    attr->client_window = widget->window;
-
-    if ((colormap = gtk_widget_get_colormap (widget)) !=
-            gtk_widget_get_default_colormap ())
-    {
-        attrmask |= GDK_IC_PREEDIT_COLORMAP;
-        attr->preedit_colormap = colormap;
-    }
-
-    attrmask |= GDK_IC_PREEDIT_FOREGROUND;
-    attrmask |= GDK_IC_PREEDIT_BACKGROUND;
-    attr->preedit_foreground = widget->style->fg[GTK_STATE_NORMAL];
-    attr->preedit_background = widget->style->base[GTK_STATE_NORMAL];
-
-    switch (style & GDK_IM_PREEDIT_MASK)
-    {
-        case GDK_IM_PREEDIT_POSITION:
-            if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
-            {
-                g_warning ("over-the-spot style requires fontset");
-                break;
-            }
-
-            gdk_drawable_get_size (widget->window, &width, &height);
-
-            attrmask |= GDK_IC_PREEDIT_POSITION_REQ;
-            attr->spot_location.x = 0;
-            attr->spot_location.y = height;
-            attr->preedit_area.x = 0;
-            attr->preedit_area.y = 0;
-            attr->preedit_area.width = width;
-            attr->preedit_area.height = height;
-            attr->preedit_fontset = widget->style->font;
-
-            break;
-    }
-
-      win->m_ic = gdk_ic_new (attr, (GdkICAttributesType)attrmask);
-
-      if (win->m_ic == NULL)
-          g_warning ("Can't create input context.");
-      else
-      {
-          mask = gdk_window_get_events (widget->window);
-          mask = (GdkEventMask)(mask | gdk_ic_get_events (win->m_ic));
-          gdk_window_set_events (widget->window, mask);
-
-          if (GTK_WIDGET_HAS_FOCUS(widget))
-              gdk_im_begin (win->m_ic, widget->window);
-      }
-#endif // HAVE_XIM
-}
+    // the cast is necessary when we compile in wxUniversal mode
+    return (wxWindow *)g_focusWindow;
 }
 
 //-----------------------------------------------------------------------------
@@ -2375,8 +2184,8 @@ static void wxInsertChildInWindow( wxWindowGTK* parent, wxWindowGTK* child )
     /* the window might have been scrolled already, do we
        have to adapt the position */
     GtkPizza *pizza = GTK_PIZZA(parent->m_wxwindow);
-    child->m_x += pizza->xoffset;
-    child->m_y += pizza->yoffset;
+    child->m_x += gtk_pizza_get_xoffset( pizza );
+    child->m_y += gtk_pizza_get_yoffset( pizza );
 
     gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow),
                      GTK_WIDGET(child->m_widget),
@@ -2450,6 +2259,8 @@ void wxWindowGTK::Init()
     m_needParent = true;
     m_isBeingDeleted = false;
 
+    m_showOnIdle= false;
+
     m_noExpose = false;
     m_nativeSizeEvent = false;
 
@@ -2458,10 +2269,13 @@ void wxWindowGTK::Init()
     m_mouseButtonDown = false;
     m_blockScrollEvent = false;
 
-    m_scrollBar[0] =
-    m_scrollBar[1] = NULL;
-    m_scrollPos[0] =
-    m_scrollPos[1] = 0;
+    // initialize scrolling stuff
+    for ( int dir = 0; dir < ScrollDir_Max; dir++ )
+    {
+        m_scrollBar[dir] = NULL;
+        m_scrollPos[dir] = 0;
+        m_blockValueChanged[dir] = false;
+    }
 
     m_oldClientWidth =
     m_oldClientHeight = 0;
@@ -2524,32 +2338,30 @@ bool wxWindowGTK::Create( wxWindow *parent,
     GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
     scroll_class->scrollbar_spacing = 0;
 
-    gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
-
-    m_scrollBar[0] = GTK_RANGE(scrolledWindow->hscrollbar);
-    m_scrollBar[1] = GTK_RANGE(scrolledWindow->vscrollbar);
-
-    m_wxwindow = gtk_pizza_new();
-
-#ifndef __WXUNIVERSAL__
-    GtkPizza *pizza = GTK_PIZZA(m_wxwindow);
-
-    if (HasFlag(wxRAISED_BORDER))
-    {
-        gtk_pizza_set_shadow_type( pizza, GTK_MYSHADOW_OUT );
-    }
-    else if (HasFlag(wxSUNKEN_BORDER))
+    if (HasFlag(wxALWAYS_SHOW_SB))
     {
-        gtk_pizza_set_shadow_type( pizza, GTK_MYSHADOW_IN );
-    }
-    else if (HasFlag(wxSIMPLE_BORDER))
-    {
-        gtk_pizza_set_shadow_type( pizza, GTK_MYSHADOW_THIN );
+        gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS );
+
+        scrolledWindow->hscrollbar_visible = TRUE;
+        scrolledWindow->vscrollbar_visible = TRUE;
     }
     else
     {
-        gtk_pizza_set_shadow_type( pizza, GTK_MYSHADOW_NONE );
+        gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
     }
+
+    m_scrollBar[ScrollDir_Horz] = GTK_RANGE(scrolledWindow->hscrollbar);
+    m_scrollBar[ScrollDir_Vert] = GTK_RANGE(scrolledWindow->vscrollbar);
+    if (GetLayoutDirection() == wxLayout_RightToLeft)
+        gtk_range_set_inverted( m_scrollBar[ScrollDir_Horz], TRUE );
+
+    m_wxwindow = gtk_pizza_new();
+
+#ifndef __WXUNIVERSAL__
+    if (HasFlag(wxSIMPLE_BORDER))
+        gtk_container_set_border_width((GtkContainer*)m_wxwindow, 1);
+    else if (HasFlag(wxRAISED_BORDER) || HasFlag(wxSUNKEN_BORDER))
+        gtk_container_set_border_width((GtkContainer*)m_wxwindow, 2);
 #endif // __WXUNIVERSAL__
 
     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
@@ -2557,24 +2369,25 @@ bool wxWindowGTK::Create( wxWindow *parent,
     GTK_WIDGET_SET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
     m_acceptsFocus = true;
 
-    // these handlers block mouse events to any window during scrolling such as
-    // motion events and prevent GTK and wxWidgets from fighting over where the
-    // slider should be
-    g_signal_connect(m_scrollBar[0], "button_press_event",
-                     G_CALLBACK(gtk_scrollbar_button_press_event), this);
-    g_signal_connect(m_scrollBar[1], "button_press_event",
-                     G_CALLBACK(gtk_scrollbar_button_press_event), this);
-    g_signal_connect(m_scrollBar[0], "button_release_event",
-                     G_CALLBACK(gtk_scrollbar_button_release_event), this);
-    g_signal_connect(m_scrollBar[1], "button_release_event",
-                     G_CALLBACK(gtk_scrollbar_button_release_event), this);
-
-    // these handlers get notified when scrollbar slider moves
-
-    g_signal_connect(m_scrollBar[0], "value_changed",
-                     G_CALLBACK(gtk_scrollbar_value_changed), this);
-    g_signal_connect(m_scrollBar[1], "value_changed",
-                     G_CALLBACK(gtk_scrollbar_value_changed), this);
+    // connect various scroll-related events
+    for ( int dir = 0; dir < ScrollDir_Max; dir++ )
+    {
+        // these handlers block mouse events to any window during scrolling
+        // such as motion events and prevent GTK and wxWidgets from fighting
+        // over where the slider should be
+        g_signal_connect(m_scrollBar[dir], "button_press_event",
+                         G_CALLBACK(gtk_scrollbar_button_press_event), this);
+        g_signal_connect(m_scrollBar[dir], "button_release_event",
+                         G_CALLBACK(gtk_scrollbar_button_release_event), this);
+
+        gulong handler_id = g_signal_connect(m_scrollBar[dir], "event_after",
+                                G_CALLBACK(gtk_scrollbar_event_after), this);
+        g_signal_handler_block(m_scrollBar[dir], handler_id);
+
+        // these handlers get notified when scrollbar slider moves
+        g_signal_connect(m_scrollBar[dir], "value_changed",
+                         G_CALLBACK(gtk_scrollbar_value_changed), this);
+    }
 
     gtk_widget_show( m_wxwindow );
 
@@ -2619,13 +2432,6 @@ wxWindowGTK::~wxWindowGTK()
     if (m_widget)
         Show( false );
 
-#ifdef HAVE_XIM
-    if (m_ic)
-        gdk_ic_destroy (m_ic);
-    if (m_icattr)
-        gdk_ic_attr_destroy (m_icattr);
-#endif
-
     // delete before the widgets to avoid a crash on solaris
     delete m_imData;
 
@@ -2667,12 +2473,11 @@ void wxWindowGTK::PostCreation()
         {
             // these get reported to wxWidgets -> wxPaintEvent
 
-            gtk_pizza_set_external( GTK_PIZZA(m_wxwindow), TRUE );
-
             g_signal_connect (m_wxwindow, "expose_event",
                               G_CALLBACK (gtk_window_expose_callback), this);
 
-            gtk_widget_set_redraw_on_allocate( GTK_WIDGET(m_wxwindow), HasFlag( wxFULL_REPAINT_ON_RESIZE ) );
+            if (GetLayoutDirection() == wxLayout_LeftToRight)
+                gtk_widget_set_redraw_on_allocate( GTK_WIDGET(m_wxwindow), HasFlag( wxFULL_REPAINT_ON_RESIZE ) );
         }
 
         // Create input method handler
@@ -2728,14 +2533,6 @@ void wxWindowGTK::PostCreation()
         // Catch native resize events
         g_signal_connect (m_wxwindow, "size_allocate",
                           G_CALLBACK (gtk_window_size_callback), this);
-
-        // Initialize XIM support
-        g_signal_connect (m_wxwindow, "realize",
-                          G_CALLBACK (gtk_wxwindow_realized_callback), this);
-
-        // And resize XIM window
-        g_signal_connect (m_wxwindow, "size_allocate",
-                          G_CALLBACK (gtk_wxwindow_size_callback), this);
     }
 
     if (GTK_IS_COMBO(m_widget))
@@ -2746,6 +2543,15 @@ void wxWindowGTK::PostCreation()
                           G_CALLBACK (wxgtk_combo_size_request_callback),
                           this);
     }
+#ifdef GTK_IS_FILE_CHOOSER_BUTTON
+    else if (!gtk_check_version(2,6,0) && GTK_IS_FILE_CHOOSER_BUTTON(m_widget))
+    {
+        // If we connect to the "size_request" signal of a GtkFileChooserButton
+        // then that control won't be sized properly when placed inside sizers
+        // (this can be tested removing this elseif and running XRC or WIDGETS samples)
+        // FIXME: what should be done here ?
+    }
+#endif
     else
     {
         // This is needed if we want to add our windows into native
@@ -2761,6 +2567,8 @@ void wxWindowGTK::PostCreation()
 
     m_hasVMT = true;
 
+    SetLayoutDirection(wxLayout_Default);
+
     // unless the window was created initially hidden (i.e. Hide() had been
     // called before Create()), we should show it at GTK+ level as well
     if ( IsShown() )
@@ -2800,7 +2608,9 @@ bool wxWindowGTK::Destroy()
 
 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
 {
+    // inform the parent to perform the move
     gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), m_widget, x, y, width, height );
+
 }
 
 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
@@ -2808,10 +2618,6 @@ void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags
     wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
     wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
 
-/*
-    printf( "DoSetSize: name %s, x,y,w,h: %d,%d,%d,%d \n", GetName().c_str(), x,y,width,height );
-*/
-
     if (m_resizing) return; /* I don't like recursions */
     m_resizing = true;
 
@@ -2855,8 +2661,6 @@ void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags
        // don't take the x,y values, they're wrong because toolbar sets them
        GtkWidget  *widget = GTK_WIDGET(m_widget);
        gtk_widget_set_size_request (widget, m_width, m_height);
-       if (GTK_WIDGET_VISIBLE (widget))
-            gtk_widget_queue_resize (widget);
     }
     else
 #endif
@@ -2873,13 +2677,13 @@ void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags
         GtkPizza *pizza = GTK_PIZZA(m_parent->m_wxwindow);
         if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0)
         {
-            if (x != -1) m_x = x + pizza->xoffset;
-            if (y != -1) m_y = y + pizza->yoffset;
+            if (x != -1) m_x = x + gtk_pizza_get_xoffset( pizza );
+            if (y != -1) m_y = y + gtk_pizza_get_yoffset( pizza );
         }
         else
         {
-            m_x = x + pizza->xoffset;
-            m_y = y + pizza->yoffset;
+            m_x = x + gtk_pizza_get_xoffset( pizza );
+            m_y = y + gtk_pizza_get_yoffset( pizza );
         }
 
         int left_border = 0;
@@ -2936,8 +2740,32 @@ void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags
     m_resizing = false;
 }
 
+bool wxWindowGTK::GtkShowFromOnIdle()
+{
+    if (IsShown() && m_showOnIdle && !GTK_WIDGET_VISIBLE (m_widget))
+    {
+        GtkAllocation alloc;
+        alloc.x = m_x;
+        alloc.y = m_y;
+        alloc.width = m_width;
+        alloc.height = m_height;
+        gtk_widget_size_allocate( m_widget, &alloc );
+        gtk_widget_show( m_widget );
+        wxShowEvent eventShow(GetId(), true);
+        eventShow.SetEventObject(this);
+        GetEventHandler()->ProcessEvent(eventShow);
+        m_showOnIdle = false;
+        return true;
+    }
+
+    return false;
+}
+
 void wxWindowGTK::OnInternalIdle()
 {
+    // Check if we have to show window now
+    if (GtkShowFromOnIdle()) return;
+
     if ( m_dirtyTabOrder )
     {
         m_dirtyTabOrder = false;
@@ -2952,9 +2780,6 @@ void wxWindowGTK::OnInternalIdle()
         m_needsStyleChange = false;
     }
 
-    // Update invalidated regions.
-    GtkUpdate();
-
     wxCursor cursor = m_cursor;
     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 
@@ -2979,13 +2804,11 @@ void wxWindowGTK::OnInternalIdle()
                 gdk_window_set_cursor( window, cursor.GetCursor() );
 
         }
-        else
+        else if ( m_widget )
         {
-
             GdkWindow *window = m_widget->window;
-            if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
+            if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
                gdk_window_set_cursor( window, cursor.GetCursor() );
-
         }
     }
 
@@ -3015,20 +2838,9 @@ void wxWindowGTK::DoSetClientSize( int width, int height )
             GetScrollbarWidth(m_widget, dw, dh);
         }
 
-#ifndef __WXUNIVERSAL__
-        if (HasFlag(wxRAISED_BORDER) || HasFlag(wxSUNKEN_BORDER))
-        {
-            // shadow border size is 2
-            dw += 2 * 2;
-            dh += 2 * 2;
-        }
-        if (HasFlag(wxSIMPLE_BORDER))
-        {
-            // simple border size is 1
-            dw += 1 * 2;
-            dh += 1 * 2;
-        }
-#endif // __WXUNIVERSAL__
+        const int border = GTK_CONTAINER(m_wxwindow)->border_width;
+        dw += 2 * border;
+        dh += 2 * border;
 
         width += dw;
         height += dh;
@@ -3050,27 +2862,18 @@ void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
         int dh = 0;
 
         if (m_hasScrolling)
-        {
             GetScrollbarWidth(m_widget, dw, dh);
-        }
 
-#ifndef __WXUNIVERSAL__
-        if (HasFlag(wxRAISED_BORDER) || HasFlag(wxSUNKEN_BORDER))
-        {
-            // shadow border size is 2
-            dw += 2 * 2;
-            dh += 2 * 2;
-        }
-        if (HasFlag(wxSIMPLE_BORDER))
-        {
-            // simple border size is 1
-            dw += 1 * 2;
-            dh += 1 * 2;
-        }
-#endif // __WXUNIVERSAL__
+        const int border = GTK_CONTAINER(m_wxwindow)->border_width;
+        dw += 2 * border;
+        dh += 2 * border;
 
         w -= dw;
         h -= dh;
+        if (w < 0)
+            w = 0;
+        if (h < 0)
+            h = 0;
     }
 
     if (width) *width = w;
@@ -3086,8 +2889,30 @@ void wxWindowGTK::DoGetPosition( int *x, int *y ) const
     if (m_parent && m_parent->m_wxwindow)
     {
         GtkPizza *pizza = GTK_PIZZA(m_parent->m_wxwindow);
-        dx = pizza->xoffset;
-        dy = pizza->yoffset;
+        dx = gtk_pizza_get_xoffset( pizza );
+        dy = gtk_pizza_get_yoffset( pizza );
+    }
+
+    if (m_x == -1 && m_y == -1)
+    {
+        GdkWindow *source = (GdkWindow *) NULL;
+        if (m_wxwindow)
+            source = GTK_PIZZA(m_wxwindow)->bin_window;
+        else
+            source = m_widget->window;
+
+        if (source)
+        {
+            int org_x = 0;
+            int org_y = 0;
+            gdk_window_get_origin( source, &org_x, &org_y );
+
+            if (GetParent())
+                GetParent()->ScreenToClient(&org_x, &org_y);
+
+            wx_const_cast(wxWindowGTK*, this)->m_x = org_x;
+            wx_const_cast(wxWindowGTK*, this)->m_y = org_y;
+        }
     }
 
     if (x) (*x) = m_x - dx;
@@ -3119,7 +2944,15 @@ void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
         }
     }
 
-    if (x) *x += org_x;
+
+    if (x)
+    {
+        if (GetLayoutDirection() == wxLayout_RightToLeft)
+            *x = (GetClientSize().x - *x) + org_x;
+        else
+            *x += org_x;
+    }
+
     if (y) *y += org_y;
 }
 
@@ -3148,7 +2981,13 @@ void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
         }
     }
 
-    if (x) *x -= org_x;
+    if (x)
+    {
+        if (GetLayoutDirection() == wxLayout_RightToLeft)
+            *x = (GetClientSize().x - *x) - org_x;
+        else
+            *x -= org_x;
+    }
     if (y) *y -= org_y;
 }
 
@@ -3163,14 +3002,22 @@ bool wxWindowGTK::Show( bool show )
     }
 
     if (show)
-        gtk_widget_show( m_widget );
+    {
+        if (!m_showOnIdle)
+        {
+            gtk_widget_show( m_widget );
+            wxShowEvent eventShow(GetId(), show);
+            eventShow.SetEventObject(this);
+            GetEventHandler()->ProcessEvent(eventShow);
+        }
+    }
     else
+    {
         gtk_widget_hide( m_widget );
-
-    wxShowEvent eventShow(GetId(), show);
-    eventShow.SetEventObject(this);
-
-    GetEventHandler()->ProcessEvent(eventShow);
+        wxShowEvent eventShow(GetId(), show);
+        eventShow.SetEventObject(this);
+        GetEventHandler()->ProcessEvent(eventShow);
+    }
 
     return true;
 }
@@ -3322,6 +3169,22 @@ void wxWindowGTK::GetTextExtent( const wxString& string,
     g_object_unref (layout);
 }
 
+bool wxWindowGTK::GTKSetDelayedFocusIfNeeded()
+{
+    if ( g_delayedFocus == this )
+    {
+        if ( GTK_WIDGET_REALIZED(m_widget) )
+        {
+            gtk_widget_grab_focus(m_widget);
+            g_delayedFocus = NULL;
+
+            return true;
+        }
+    }
+
+    return false;
+}
+
 void wxWindowGTK::SetFocus()
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
@@ -3342,6 +3205,12 @@ void wxWindowGTK::SetFocus()
     {
         if (GTK_IS_CONTAINER(m_widget))
         {
+            if (IsKindOf(CLASSINFO(wxRadioButton)))
+            {
+                gtk_widget_grab_focus (m_widget);
+                return;
+            }
+
             gtk_widget_child_focus( m_widget, GTK_DIR_TAB_FORWARD );
         }
         else
@@ -3408,6 +3277,12 @@ bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
 
     if (newParent)
     {
+        if (GTK_WIDGET_VISIBLE (newParent->m_widget))
+        {
+            m_showOnIdle = true;
+            gtk_widget_hide( m_widget );
+        }
+
         /* insert GTK representation */
         (*(newParent->m_insertCallback))(newParent, this);
     }
@@ -3415,6 +3290,8 @@ bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
     /* reverse: prevent GTK from deleting the widget arbitrarily */
     gtk_widget_unref( m_widget );
 
+    SetLayoutDirection(wxLayout_Default);
+
     return true;
 }
 
@@ -3449,6 +3326,63 @@ void wxWindowGTK::RemoveChild(wxWindowBase *child)
         wxapp_install_idle_handler();
 }
 
+/* static */
+wxLayoutDirection wxWindowGTK::GTKGetLayout(GtkWidget *widget)
+{
+    return gtk_widget_get_direction(GTK_WIDGET(widget)) == GTK_TEXT_DIR_RTL
+                ? wxLayout_RightToLeft
+                : wxLayout_LeftToRight;
+}
+
+/* static */
+void wxWindowGTK::GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir)
+{
+    wxASSERT_MSG( dir != wxLayout_Default, _T("invalid layout direction") );
+
+    gtk_widget_set_direction(GTK_WIDGET(widget),
+                             dir == wxLayout_RightToLeft ? GTK_TEXT_DIR_RTL
+                                                         : GTK_TEXT_DIR_LTR);
+}
+
+wxLayoutDirection wxWindowGTK::GetLayoutDirection() const
+{
+    return GTKGetLayout(m_widget);
+}
+
+void wxWindowGTK::SetLayoutDirection(wxLayoutDirection dir)
+{
+    if ( dir == wxLayout_Default )
+    {
+        const wxWindow *const parent = GetParent();
+        if ( parent )
+        {
+            // inherit layout from parent.
+            dir = parent->GetLayoutDirection();
+        }
+        else // no parent, use global default layout
+        {
+            dir = wxTheApp->GetLayoutDirection();
+        }
+    }
+
+    if ( dir == wxLayout_Default )
+        return;
+
+    GTKSetLayout(m_widget, dir);
+
+    if (m_wxwindow)
+        GTKSetLayout(m_wxwindow, dir);
+}
+
+wxCoord
+wxWindowGTK::AdjustForLayoutDirection(wxCoord x,
+                                      wxCoord WXUNUSED(width),
+                                      wxCoord WXUNUSED(widthTotal)) const
+{
+    // We now mirrors the coordinates of RTL windows in GtkPizza
+    return x;
+}
+
 void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, MoveKind move)
 {
     wxWindowBase::DoMoveInTabOrder(win, move);
@@ -3559,18 +3493,41 @@ void wxWindowGTK::Lower()
 
 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
 {
-    wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
+    if ( !wxWindowBase::SetCursor(cursor.Ok() ? cursor : *wxSTANDARD_CURSOR) )
+        return false;
 
-    if (cursor == m_cursor)
-       return false;
+    GTKUpdateCursor();
 
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    return true;
+}
 
-    if (cursor == wxNullCursor)
-       return wxWindowBase::SetCursor( *wxSTANDARD_CURSOR );
-    else
-       return wxWindowBase::SetCursor( cursor );
+void wxWindowGTK::GTKUpdateCursor()
+{
+    wxCursor cursor(g_globalCursor.Ok() ? g_globalCursor : GetCursor());
+    if ( cursor.Ok() )
+    {
+        wxArrayGdkWindows windowsThis;
+        GdkWindow * const winThis = GTKGetWindow(windowsThis);
+        if ( winThis )
+        {
+            gdk_window_set_cursor(winThis, cursor.GetCursor());
+        }
+        else
+        {
+            const size_t count = windowsThis.size();
+            for ( size_t n = 0; n < count; n++ )
+            {
+                GdkWindow *win = windowsThis[n];
+                if ( !win )
+                {
+                    wxFAIL_MSG(_T("NULL window returned by GTKGetWindow()?"));
+                    continue;
+                }
+
+                gdk_window_set_cursor(win, cursor.GetCursor());
+            }
+        }
+    }
 }
 
 void wxWindowGTK::WarpPointer( int x, int y )
@@ -3590,34 +3547,49 @@ void wxWindowGTK::WarpPointer( int x, int y )
         gdk_window_warp_pointer( window, x, y );
 }
 
-bool wxWindowGTK::ScrollLines(int lines)
+wxWindowGTK::ScrollDir wxWindowGTK::ScrollDirFromRange(GtkRange *range) const
 {
-    bool changed = false;
-    GtkRange* range = m_scrollBar[1];
-    if (range != NULL)
+    // find the scrollbar which generated the event
+    for ( int dir = 0; dir < ScrollDir_Max; dir++ )
     {
-        GtkAdjustment* adj = range->adjustment;
-        const int pos = int(adj->value + 0.5);
-        gtk_range_set_value(range, pos + lines);
-        changed = pos != int(adj->value + 0.5);
+        if ( range == m_scrollBar[dir] )
+            return (ScrollDir)dir;
     }
-    return changed;
+
+    wxFAIL_MSG( _T("event from unknown scrollbar received") );
+
+    return ScrollDir_Max;
 }
 
-bool wxWindowGTK::ScrollPages(int pages)
+bool wxWindowGTK::DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units)
 {
     bool changed = false;
-    GtkRange* range = m_scrollBar[1];
-    if (range != NULL)
+    GtkRange* range = m_scrollBar[dir];
+    if ( range && units )
     {
         GtkAdjustment* adj = range->adjustment;
-        const int pos = int(adj->value + 0.5);
-        gtk_range_set_value(range, pos + pages * adj->page_size);
-        changed = pos != int(adj->value + 0.5);
+        gdouble inc = unit == ScrollUnit_Line ? adj->step_increment
+                                              : adj->page_increment;
+
+        const int posOld = int(adj->value + 0.5);
+        gtk_range_set_value(range, posOld + units*inc);
+
+        changed = int(adj->value + 0.5) != posOld;
     }
+
     return changed;
 }
 
+bool wxWindowGTK::ScrollLines(int lines)
+{
+    return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Line, lines);
+}
+
+bool wxWindowGTK::ScrollPages(int pages)
+{
+    return DoScrollByUnits(ScrollDir_Vert, ScrollUnit_Page, pages);
+}
+
 void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
 {
     if (!m_widget)
@@ -3627,6 +3599,8 @@ void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
 
     if (m_wxwindow)
     {
+        if (!GTK_PIZZA(m_wxwindow)->bin_window) return;
+
         GdkRectangle gdk_rect,
                     *p;
         if (rect)
@@ -3635,6 +3609,9 @@ void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
             gdk_rect.y = rect->y;
             gdk_rect.width = rect->width;
             gdk_rect.height = rect->height;
+            if (GetLayoutDirection() == wxLayout_RightToLeft)
+                gdk_rect.x = GetClientSize().x - gdk_rect.x - gdk_rect.width;
+
             p = &gdk_rect;
         }
         else // invalidate everything
@@ -3661,6 +3638,8 @@ void wxWindowGTK::GtkUpdate()
 {
     if (m_wxwindow && GTK_PIZZA(m_wxwindow)->bin_window)
         gdk_window_process_updates( GTK_PIZZA(m_wxwindow)->bin_window, FALSE );
+    if (m_widget && m_widget->window)
+        gdk_window_process_updates( m_widget->window, FALSE );
 
     // for consistency with other platforms (and also because it's convenient
     // to be able to update an entire TLW by calling Update() only once), we
@@ -3673,6 +3652,20 @@ void wxWindowGTK::GtkUpdate()
     }
 }
 
+bool wxWindowGTK::DoIsExposed( int x, int y ) const
+{
+    return m_updateRegion.Contains(x, y) != wxOutRegion;
+}
+
+
+bool wxWindowGTK::DoIsExposed( int x, int y, int w, int h ) const
+{
+    if (GetLayoutDirection() == wxLayout_RightToLeft)
+        return m_updateRegion.Contains(x-w, y, w, h) != wxOutRegion;
+    else
+        return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
+}
+
 void wxWindowGTK::GtkSendPaintEvents()
 {
     if (!m_wxwindow)
@@ -3684,6 +3677,33 @@ void wxWindowGTK::GtkSendPaintEvents()
     // Clip to paint region in wxClientDC
     m_clipPaintRegion = true;
 
+    m_nativeUpdateRegion = m_updateRegion;
+
+    if (GetLayoutDirection() == wxLayout_RightToLeft)
+    {
+        // Transform m_updateRegion under RTL
+        m_updateRegion.Clear();
+
+        gint width;
+        gdk_window_get_geometry( GTK_PIZZA(m_wxwindow)->bin_window,
+                                 NULL, NULL, &width, NULL, NULL );
+
+        wxRegionIterator upd( m_nativeUpdateRegion );
+        while (upd)
+        {
+            wxRect rect;
+            rect.x = upd.GetX();
+            rect.y = upd.GetY();
+            rect.width = upd.GetWidth();
+            rect.height = upd.GetHeight();
+
+            rect.x = width - rect.x - rect.width;
+            m_updateRegion.Union( rect );
+
+            ++upd;
+        }
+    }
+
     // widget to draw on
     GtkPizza *pizza = GTK_PIZZA (m_wxwindow);
 
@@ -3696,7 +3716,7 @@ void wxWindowGTK::GtkSendPaintEvents()
 
         if (GTK_WIDGET_MAPPED(parent->m_widget))
         {
-            wxRegionIterator upd( m_updateRegion );
+            wxRegionIterator upd( m_nativeUpdateRegion );
             while (upd)
             {
                 GdkRectangle rect;
@@ -3719,7 +3739,6 @@ void wxWindowGTK::GtkSendPaintEvents()
         }
     }
     else
-
     {
         wxWindowDC dc( (wxWindow*)this );
         dc.SetClippingRegion( m_updateRegion );
@@ -3741,6 +3760,20 @@ void wxWindowGTK::GtkSendPaintEvents()
     m_clipPaintRegion = false;
 
     m_updateRegion.Clear();
+    m_nativeUpdateRegion.Clear();
+}
+
+void wxWindowGTK::SetDoubleBuffered( bool on )
+{
+    wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
+
+    if ( m_wxwindow )
+        gtk_widget_set_double_buffered( m_wxwindow, on );
+}
+
+bool wxWindowGTK::IsDoubleBuffered() const
+{
+    return GTK_WIDGET_DOUBLE_BUFFERED( m_wxwindow );
 }
 
 void wxWindowGTK::ClearBackground()
@@ -3759,8 +3792,15 @@ void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
 
 void wxWindowGTK::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 {
-    wxString tmp( tip );
-    gtk_tooltips_set_tip( tips, GetConnectWidget(), wxGTK_CONV(tmp), (gchar*) NULL );
+    if (tip)
+    {
+        wxString tmp( tip );
+        gtk_tooltips_set_tip( tips, GetConnectWidget(), wxGTK_CONV(tmp), (gchar*) NULL );
+    }
+    else
+    {
+        gtk_tooltips_set_tip( tips, GetConnectWidget(), NULL, NULL);
+    }
 }
 #endif // wxUSE_TOOLTIPS
 
@@ -3832,7 +3872,7 @@ GtkRcStyle *wxWindowGTK::CreateWidgetStyle(bool forceStyle)
 
     if ( m_foregroundColour.Ok() )
     {
-        GdkColor *fg = m_foregroundColour.GetColor();
+        const GdkColor *fg = m_foregroundColour.GetColor();
 
         style->fg[GTK_STATE_NORMAL] = *fg;
         style->color_flags[GTK_STATE_NORMAL] = GTK_RC_FG;
@@ -3846,7 +3886,7 @@ GtkRcStyle *wxWindowGTK::CreateWidgetStyle(bool forceStyle)
 
     if ( m_backgroundColour.Ok() )
     {
-        GdkColor *bg = m_backgroundColour.GetColor();
+        const GdkColor *bg = m_backgroundColour.GetColor();
 
         style->bg[GTK_STATE_NORMAL] = *bg;
         style->base[GTK_STATE_NORMAL] = *bg;
@@ -3957,12 +3997,18 @@ GtkWidget* wxWindowGTK::GetConnectWidget()
     return connect_widget;
 }
 
-bool wxWindowGTK::IsOwnGtkWindow( GdkWindow *window )
+bool wxWindowGTK::GTKIsOwnWindow(GdkWindow *window) const
 {
-    if (m_wxwindow)
-        return (window == GTK_PIZZA(m_wxwindow)->bin_window);
+    wxArrayGdkWindows windowsThis;
+    GdkWindow * const winThis = GTKGetWindow(windowsThis);
 
-    return (window == m_widget->window);
+    return winThis ? window == winThis
+                   : windowsThis.Index(window) != wxNOT_FOUND;
+}
+
+GdkWindow *wxWindowGTK::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
+{
+    return m_wxwindow ? GTK_PIZZA(m_wxwindow)->bin_window : m_widget->window;
 }
 
 bool wxWindowGTK::SetFont( const wxFont &font )
@@ -4051,8 +4097,11 @@ void wxWindowGTK::UnblockScrollEvent()
     m_blockScrollEvent = false;
 }
 
-void wxWindowGTK::SetScrollbar( int orient, int pos, int thumbVisible,
-      int range, bool )
+void wxWindowGTK::SetScrollbar(int orient,
+                               int pos,
+                               int thumbVisible,
+                               int range,
+                               bool WXUNUSED(update))
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
     wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
@@ -4068,21 +4117,20 @@ void wxWindowGTK::SetScrollbar( int orient, int pos, int thumbVisible,
         thumbVisible = 1;
     }
 
-    const int i = orient == wxVERTICAL;
-    GtkAdjustment* adj = m_scrollBar[i]->adjustment;
-    adj->value = pos;
+    if (pos > range - thumbVisible)
+        pos = range - thumbVisible;
+    if (pos < 0)
+        pos = 0;
+    GtkAdjustment* adj = m_scrollBar[ScrollDirFromOrient(orient)]->adjustment;
     adj->step_increment = 1;
     adj->page_increment =
     adj->page_size = thumbVisible;
-
-    BlockScrollEvent();
-    // automatically clamps value to [0,range-page_size], and emits change events
-    gtk_range_set_range(m_scrollBar[i], 0, range);
-    UnblockScrollEvent();
-    m_scrollPos[i] = adj->value;
+    adj->upper = range;
+    SetScrollPos(orient, pos);
+    gtk_adjustment_changed(adj);
 }
 
-void wxWindowGTK::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh) )
+void wxWindowGTK::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
     wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
@@ -4091,21 +4139,29 @@ void wxWindowGTK::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh) )
     //   will not move smoothly while tracking when using wxScrollHelper.
     if (GetScrollPos(orient) != pos)
     {
-        const int i = orient == wxVERTICAL;
-        BlockScrollEvent();
-        gtk_range_set_value(m_scrollBar[i], pos);
-        UnblockScrollEvent();
-        m_scrollPos[i] = m_scrollBar[i]->adjustment->value;
+        const int dir = ScrollDirFromOrient(orient);
+        GtkAdjustment* adj = m_scrollBar[dir]->adjustment;
+        const int max = int(adj->upper - adj->page_size);
+        if (pos > max)
+            pos = max;
+        if (pos < 0)
+            pos = 0;
+        m_scrollPos[dir] = adj->value = pos;
+
+        // If a "value_changed" signal emission is not already in progress
+        if (!m_blockValueChanged[dir])
+        {
+            gtk_adjustment_value_changed(adj);
+        }
     }
 }
 
-int wxWindowGTK::GetScrollThumb( int orient ) const
+int wxWindowGTK::GetScrollThumb(int orient) const
 {
     wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
     wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
 
-    const int i = orient == wxVERTICAL;
-    return int(m_scrollBar[i]->adjustment->page_size);
+    return int(m_scrollBar[ScrollDirFromOrient(orient)]->adjustment->page_size);
 }
 
 int wxWindowGTK::GetScrollPos( int orient ) const
@@ -4113,8 +4169,7 @@ int wxWindowGTK::GetScrollPos( int orient ) const
     wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
     wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
 
-    const int i = orient == wxVERTICAL;
-    return int(m_scrollBar[i]->adjustment->value + 0.5);
+    return int(m_scrollBar[ScrollDirFromOrient(orient)]->adjustment->value + 0.5);
 }
 
 int wxWindowGTK::GetScrollRange( int orient ) const
@@ -4122,8 +4177,7 @@ int wxWindowGTK::GetScrollRange( int orient ) const
     wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
     wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
 
-    const int i = orient == wxVERTICAL;
-    return int(m_scrollBar[i]->adjustment->upper);
+    return int(m_scrollBar[ScrollDirFromOrient(orient)]->adjustment->upper);
 }
 
 // Determine if increment is the same as +/-x, allowing for some small
@@ -4135,7 +4189,7 @@ static inline bool IsScrollIncrement(double increment, double x)
     return fabs(increment - fabs(x)) < tolerance;
 }
 
-wxEventType wxWindow::GetScrollEventType(GtkRange* range)
+wxEventType wxWindowGTK::GetScrollEventType(GtkRange* range)
 {
     DEBUG_MAIN_THREAD
 
@@ -4146,13 +4200,15 @@ wxEventType wxWindow::GetScrollEventType(GtkRange* range)
 
     const int barIndex = range == m_scrollBar[1];
     GtkAdjustment* adj = range->adjustment;
+
     const int value = int(adj->value + 0.5);
+
     // save previous position
     const double oldPos = m_scrollPos[barIndex];
     // update current position
     m_scrollPos[barIndex] = adj->value;
     // If event should be ignored, or integral position has not changed
-    if (!m_hasVMT || g_blockEventsOnDrag || m_blockScrollEvent || value == int(oldPos + 0.5))
+    if (!m_hasVMT || g_blockEventsOnDrag || value == int(oldPos + 0.5))
     {
         return wxEVT_NULL;
     }
@@ -4192,9 +4248,34 @@ void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
 
     m_clipPaintRegion = true;
 
-    gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), -dx, -dy );
+    if (GetLayoutDirection() == wxLayout_RightToLeft)
+        gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), dx, -dy );
+    else
+        gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), -dx, -dy );
 
     m_clipPaintRegion = false;
+
+#if wxUSE_CARET
+    bool restoreCaret = (GetCaret() != NULL && GetCaret()->IsVisible());
+    if (restoreCaret)
+    {
+        wxRect caretRect(GetCaret()->GetPosition(), GetCaret()->GetSize());
+        if (dx > 0)
+            caretRect.width += dx;
+        else
+        {
+            caretRect.x += dx; caretRect.width -= dx;
+        }
+        if (dy > 0)
+            caretRect.height += dy;
+        else
+        {
+            caretRect.y += dy; caretRect.height -= dy;
+        }
+
+        RefreshRect(caretRect);
+    }
+#endif // wxUSE_CARET
 }
 
 void wxWindowGTK::GtkScrolledWindowSetBorder(GtkWidget* w, int wxstyle)
@@ -4275,33 +4356,3 @@ void wxRemoveGrab(wxWindow* window)
 {
     gtk_grab_remove( (GtkWidget*) window->GetHandle() );
 }
-
-// ----------------------------------------------------------------------------
-// wxWinModule
-// ----------------------------------------------------------------------------
-
-class wxWinModule : public wxModule
-{
-public:
-    bool OnInit();
-    void OnExit();
-
-private:
-    DECLARE_DYNAMIC_CLASS(wxWinModule)
-};
-
-IMPLEMENT_DYNAMIC_CLASS(wxWinModule, wxModule)
-
-bool wxWinModule::OnInit()
-{
-    // g_eraseGC = gdk_gc_new( gdk_get_default_root_window() );
-    // gdk_gc_set_fill( g_eraseGC, GDK_SOLID );
-
-    return true;
-}
-
-void wxWinModule::OnExit()
-{
-    if (g_eraseGC)
-        g_object_unref (g_eraseGC);
-}