]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk/toplevel.cpp
Fix item selection/focus drawing in generic wxListCtrl.
[wxWidgets.git] / src / gtk / toplevel.cpp
index 7b4d04a2dbaf2aaa8cb7604f0ea789738b65bd3d..5a77576b0a5e502426e33a55a69e94bb6b4ce52e 100644 (file)
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        toplevel.cpp
+// Name:        src/gtk/toplevel.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,6 +7,9 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
 // ============================================================================
 // declarations
 // ============================================================================
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "toplevel.h"
-#endif
-
 #ifdef __VMS
 #define XIconifyWindow XICONIFYWINDOW
 #endif
 
-#include "wx/defs.h"
+#include "wx/toplevel.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/frame.h"
+    #include "wx/icon.h"
+    #include "wx/log.h"
+    #include "wx/app.h"
+#endif
 
-#include "wx/dialog.h"
-#include "wx/control.h"
-#include "wx/app.h"
-#include "wx/dcclient.h"
 #include "wx/gtk/private.h"
+#include "wx/evtloop.h"
+#include "wx/sysopt.h"
 
-#include <glib.h>
-#include <gdk/gdk.h>
 #include <gtk/gtk.h>
-#include <gdk/gdkkeysyms.h>
 #include <gdk/gdkx.h>
 
-#include "wx/gtk/win_gtk.h"
+#include "wx/gtk/private/win_gtk.h"
 
 #include "wx/unix/utilsx11.h"
 
 // XA_CARDINAL
 #include <X11/Xatom.h>
 
-// ----------------------------------------------------------------------------
-// idle system
-// ----------------------------------------------------------------------------
+#if wxUSE_LIBHILDON
+    #include <hildon-widgets/hildon-program.h>
+    #include <hildon-widgets/hildon-window.h>
+#endif // wxUSE_LIBHILDON
 
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
+#if wxUSE_LIBHILDON2
+    #include <hildon/hildon.h>
+#endif // wxUSE_LIBHILDON2
 
 // ----------------------------------------------------------------------------
 // data
 // ----------------------------------------------------------------------------
 
-extern wxList         wxPendingDelete;
+// this is incremented while a modal dialog is shown
+int wxOpenModalDialogsCount = 0;
 
-extern int            g_openDialogs;
-extern wxWindowGTK   *g_delayedFocus;
+// the frame that is currently active (i.e. its child has focus). It is
+// used to generate wxActivateEvents
+static wxTopLevelWindowGTK *g_activeFrame = NULL;
+static wxTopLevelWindowGTK *g_lastActiveFrame = NULL;
+
+// if we detect that the app has got/lost the focus, we set this variable to
+// either TRUE or FALSE and an activate event will be sent during the next
+// OnIdle() call and it is reset to -1: this value means that we shouldn't
+// send any activate events at all
+static int g_sendActivateEvent = -1;
 
 //-----------------------------------------------------------------------------
-// "focus" from m_window
+// RequestUserAttention related functions
 //-----------------------------------------------------------------------------
 
-static gint gtk_frame_focus_callback( GtkWidget *widget, GtkDirectionType WXUNUSED(d), wxWindow *WXUNUSED(win) )
+extern "C" {
+static void wxgtk_window_set_urgency_hint (GtkWindow *win,
+                                           gboolean setting)
 {
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    wxASSERT_MSG( GTK_WIDGET_REALIZED(win), wxT("wxgtk_window_set_urgency_hint: GdkWindow not realized") );
+    GdkWindow *window = GTK_WIDGET(win)->window;
+    XWMHints *wm_hints;
 
-    // This disables GTK's tab traversal
-    gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus" );
-    return TRUE;
+    wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window));
+
+    if (!wm_hints)
+        wm_hints = XAllocWMHints();
+
+    if (setting)
+        wm_hints->flags |= XUrgencyHint;
+    else
+        wm_hints->flags &= ~XUrgencyHint;
+
+    XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints);
+    XFree(wm_hints);
+}
+
+static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
+{
+#if GTK_CHECK_VERSION(2,7,0)
+    if(!gtk_check_version(2,7,0))
+        gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
+    else
+#endif
+        wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
+
+    win->m_urgency_hint = -2;
+    return FALSE;
+}
 }
 
 //-----------------------------------------------------------------------------
-// "size_allocate"
+// "focus_in_event"
 //-----------------------------------------------------------------------------
 
-static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxTopLevelWindowGTK *win )
+extern "C" {
+static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
+                                         GdkEvent *WXUNUSED(event),
+                                         wxTopLevelWindowGTK *win )
 {
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    switch ( g_sendActivateEvent )
+    {
+        case -1:
+            // we've got focus from outside, synthetize wxActivateEvent
+            g_sendActivateEvent = 1;
+            break;
+
+        case 0:
+            // another our window just lost focus, it was already ours before
+            // - don't send any wxActivateEvent
+            g_sendActivateEvent = -1;
+            break;
+    }
 
-    if (!win->m_hasVMT)
-        return;
+    g_activeFrame = win;
+    g_lastActiveFrame = g_activeFrame;
+
+    // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
 
-    if ((win->m_width != alloc->width) || (win->m_height != alloc->height))
+    // MR: wxRequestUserAttention related block
+    switch( win->m_urgency_hint )
     {
-/*
-        wxPrintf( "OnSize from " );
-        if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
-           wxPrintf( win->GetClassInfo()->GetClassName() );
-        wxPrintf( " %d %d %d %d\n", (int)alloc->x,
-                                (int)alloc->y,
-                                (int)alloc->width,
-                                (int)alloc->height );
-*/
+        default:
+            g_source_remove( win->m_urgency_hint );
+            // no break, fallthrough to remove hint too
+        case -1:
+#if GTK_CHECK_VERSION(2,7,0)
+            if(!gtk_check_version(2,7,0))
+                gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
+            else
+#endif
+            {
+                wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
+            }
+
+            win->m_urgency_hint = -2;
+            break;
 
-        win->m_width = alloc->width;
-        win->m_height = alloc->height;
-        win->m_queuedFullRedraw = TRUE;
-        win->GtkUpdateSize();
+        case -2: break;
     }
+
+    wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
+    wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
+    event.SetEventObject(g_activeFrame);
+    g_activeFrame->HandleWindowEvent(event);
+
+    return FALSE;
+}
 }
 
 //-----------------------------------------------------------------------------
-// "delete_event"
+// "focus_out_event"
+//-----------------------------------------------------------------------------
+
+extern "C" {
+static
+gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
+                                      GdkEventFocus *WXUNUSED(gdk_event),
+                                      wxTopLevelWindowGTK * WXUNUSED(win))
+{
+    // if the focus goes out of our app alltogether, OnIdle() will send
+    // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
+    // g_sendActivateEvent to -1
+    g_sendActivateEvent = 0;
+
+    // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
+
+    // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
+
+    if (g_activeFrame)
+    {
+        wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
+        wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
+        event.SetEventObject(g_activeFrame);
+        g_activeFrame->HandleWindowEvent(event);
+
+        g_activeFrame = NULL;
+    }
+
+    return FALSE;
+}
+}
+
+//-----------------------------------------------------------------------------
+// "size_allocate" from m_wxwindow
 //-----------------------------------------------------------------------------
 
-static gint gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxTopLevelWindowGTK *win )
+extern "C" {
+static void
+size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
 {
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    if (win->m_oldClientWidth  != alloc->width ||
+        win->m_oldClientHeight != alloc->height)
+    {
+        win->m_oldClientWidth  = alloc->width;
+        win->m_oldClientHeight = alloc->height;
 
+        wxSize size(win->m_widget->allocation.width,
+                    win->m_widget->allocation.height);
+        size += win->m_decorSize;
+        win->m_width  = size.x;
+        win->m_height = size.y;
+
+        if (!win->IsIconized())
+        {
+            wxSizeEvent event(size, win->GetId());
+            event.SetEventObject(win);
+            win->HandleWindowEvent(event);
+        }
+        // else the window is currently unmapped, don't generate size events
+    }
+}
+}
+
+// ----------------------------------------------------------------------------
+// "size_request"
+// ----------------------------------------------------------------------------
+
+extern "C" {
+static
+void wxgtk_tlw_size_request_callback(GtkWidget * WXUNUSED(widget),
+                                     GtkRequisition *requisition,
+                                     wxTopLevelWindowGTK *win)
+{
+    // we must return the size of the window without WM decorations, otherwise
+    // GTK+ gets confused, so don't call just GetSize() here
+    win->GTKDoGetSize(&requisition->width, &requisition->height);
+}
+}
+
+//-----------------------------------------------------------------------------
+// "delete_event"
+//-----------------------------------------------------------------------------
+
+extern "C" {
+static gboolean
+gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
+                           GdkEvent *WXUNUSED(event),
+                           wxTopLevelWindowGTK *win )
+{
     if (win->IsEnabled() &&
-        (g_openDialogs == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
+        (wxOpenModalDialogsCount == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
          win->IsGrabbed()))
         win->Close();
 
     return TRUE;
 }
-
+}
 
 //-----------------------------------------------------------------------------
 // "configure_event"
 //-----------------------------------------------------------------------------
 
-static gint
-gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxTopLevelWindowGTK *win )
+extern "C" {
+static gboolean
+gtk_frame_configure_callback( GtkWidget* widget,
+                              GdkEventConfigure *WXUNUSED(event),
+                              wxTopLevelWindowGTK *win )
 {
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
     if (!win->m_hasVMT || !win->IsShown())
         return FALSE;
 
-    int x = 0;
-    int y = 0;
-    gdk_window_get_root_origin( win->m_widget->window, &x, &y );
-    win->m_x = x;
-    win->m_y = y;
+    wxPoint point;
+    gtk_window_get_position((GtkWindow*)widget, &point.x, &point.y);
 
-    wxMoveEvent mevent( wxPoint(win->m_x,win->m_y), win->GetId() );
+    win->m_x = point.x;
+    win->m_y = point.y;
+    wxMoveEvent mevent(point, win->GetId());
     mevent.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent( mevent );
+    win->HandleWindowEvent( mevent );
 
     return FALSE;
 }
+}
 
 //-----------------------------------------------------------------------------
 // "realize" from m_widget
 //-----------------------------------------------------------------------------
 
-// we cannot MWM hints and icons before the widget has been realized,
+// we cannot the WM hints and icons before the widget has been realized,
 // so we do this directly after realization
 
+extern "C" {
 static void
 gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
                              wxTopLevelWindowGTK *win )
 {
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-    // All this is for Motif Window Manager "hints" and is supposed to be
-    // recognized by other WM as well. Not tested.
     gdk_window_set_decorations(win->m_widget->window,
                                (GdkWMDecoration)win->m_gdkDecor);
     gdk_window_set_functions(win->m_widget->window,
                                (GdkWMFunction)win->m_gdkFunc);
 
     // GTK's shrinking/growing policy
-    if ((win->m_gdkFunc & GDK_FUNC_RESIZE) == 0)
-        gtk_window_set_policy(GTK_WINDOW(win->m_widget), 0, 0, 1);
+    if ( !(win->m_gdkFunc & GDK_FUNC_RESIZE) )
+        gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
     else
         gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
 
-    // reset the icon
-    wxIconBundle iconsOld = win->GetIcons();
-    if ( iconsOld.GetIcon(-1).Ok() )
-    {
-        win->SetIcon( wxNullIcon );
-        win->SetIcons( iconsOld );
-    }
+    const wxIconBundle& icons = win->GetIcons();
+    if (icons.GetIconCount())
+        win->SetIcons(icons);
+
+    if (win->HasFlag(wxFRAME_SHAPED))
+        win->SetShape(win->m_shape); // it will really set the window shape now
+}
 }
 
 //-----------------------------------------------------------------------------
 // "map_event" from m_widget
 //-----------------------------------------------------------------------------
 
-static void
-gtk_frame_map_callback( GtkWidget * WXUNUSED(widget),
+extern "C" {
+static gboolean
+gtk_frame_map_callback( GtkWidget*,
                         GdkEvent * WXUNUSED(event),
                         wxTopLevelWindow *win )
 {
-    win->SetIconizeState(FALSE);
+    const bool wasIconized = win->IsIconized();
+    win->SetIconizeState(false);
+    if (wasIconized)
+    {
+        // Because GetClientSize() returns (0,0) when IsIconized() is true,
+        // a size event must be generated, just in case GetClientSize() was
+        // called while iconized. This specifically happens when restoring a
+        // tlw that was "rolled up" with some WMs.
+        // Queue a resize rather than sending size event directly to allow
+        // children to be made visible first.
+        win->m_oldClientWidth = 0;
+        gtk_widget_queue_resize(win->m_wxwindow);
+    }
+    // it is possible for m_isShown to be false here, see bug #9909
+    if (win->wxWindowBase::Show(true))
+    {
+        wxShowEvent eventShow(win->GetId(), true);
+        eventShow.SetEventObject(win);
+        win->GetEventHandler()->ProcessEvent(eventShow);
+    }
+
+#if GTK_CHECK_VERSION(2,6,0)
+    if (!gtk_check_version(2,6,0))
+    {
+        // restore focus-on-map setting in case ShowWithoutActivating() was called
+        gtk_window_set_focus_on_map(GTK_WINDOW(win->m_widget), true);
+    }
+#endif // GTK+ 2.6+
+
+    return false;
+}
 }
 
 //-----------------------------------------------------------------------------
 // "unmap_event" from m_widget
 //-----------------------------------------------------------------------------
 
-static void
+extern "C" {
+static gboolean
 gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget),
                           GdkEvent * WXUNUSED(event),
                           wxTopLevelWindow *win )
 {
-    win->SetIconizeState(TRUE);
+    // hiding the window doesn't count as minimizing it
+    if (win->IsShown())
+        win->SetIconizeState(true);
+    return false;
 }
-
-//-----------------------------------------------------------------------------
-// "expose_event" of m_client
-//-----------------------------------------------------------------------------
-
-static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_event, wxWindow *win )
-{
-    GtkPizza *pizza = GTK_PIZZA(widget);
-
-    gtk_paint_flat_box (win->m_widget->style,
-                        pizza->bin_window, GTK_STATE_NORMAL,
-                        GTK_SHADOW_NONE,
-                        &gdk_event->area,
-                        win->m_widget,
-                        (char *)"base",
-                        0, 0, -1, -1);
-
-    return TRUE;
 }
 
-//-----------------------------------------------------------------------------
-// "draw" of m_client
 //-----------------------------------------------------------------------------
 
-#ifndef __WXGTK20__
-
-static void gtk_window_draw_callback( GtkWidget *widget, GdkRectangle *rect, wxWindow *win )
+bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
 {
-    GtkPizza *pizza = GTK_PIZZA(widget);
-
-    gtk_paint_flat_box (win->m_widget->style,
-                        pizza->bin_window, GTK_STATE_NORMAL,
-                        GTK_SHADOW_NONE,
-                        rect,
-                        win->m_widget,
-                        (char *)"base",
-                        0, 0, -1, -1);
+    static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
+    Atom xproperty = gdk_x11_atom_to_xatom_for_display(
+                        gdk_drawable_get_display(window), property);
+    Atom type;
+    int format;
+    gulong nitems, bytes_after;
+    guchar* data;
+    Status status = XGetWindowProperty(
+        gdk_x11_drawable_get_xdisplay(window),
+        gdk_x11_drawable_get_xid(window),
+        xproperty,
+        0, 4, false, XA_CARDINAL,
+        &type, &format, &nitems, &bytes_after, &data);
+    const bool success = status == Success && data && nitems == 4;
+    if (success)
+    {
+        long* p = (long*)data;
+        if (left)   *left   = int(p[0]);
+        if (right)  *right  = int(p[1]);
+        if (top)    *top    = int(p[2]);
+        if (bottom) *bottom = int(p[3]);
+    }
+    if (data)
+        XFree(data);
+    return success;
 }
 
-#endif // GTK+ 1.x
-
-// ----------------------------------------------------------------------------
-// wxTopLevelWindowGTK itself
-// ----------------------------------------------------------------------------
-
 //-----------------------------------------------------------------------------
-// InsertChild for wxTopLevelWindowGTK
+// "property_notify_event" from m_widget
 //-----------------------------------------------------------------------------
 
-/* Callback for wxTopLevelWindowGTK. This very strange beast has to be used because
- * C++ has no virtual methods in a constructor. We have to emulate a
- * virtual function here as wxWindows requires different ways to insert
- * a child in container classes. */
-
-static void wxInsertChildInTopLevelWindow( wxTopLevelWindowGTK* parent, wxWindow* child )
+extern "C" {
+static gboolean property_notify_event(
+    GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
 {
-    wxASSERT( GTK_IS_WIDGET(child->m_widget) );
-
-    if (!parent->m_insertInClientArea)
-    {
-        // these are outside the client area
-        wxTopLevelWindowGTK* frame = (wxTopLevelWindowGTK*) parent;
-        gtk_pizza_put( GTK_PIZZA(frame->m_mainWidget),
-                         GTK_WIDGET(child->m_widget),
-                         child->m_x,
-                         child->m_y,
-                         child->m_width,
-                         child->m_height );
-    }
-    else
+    // Watch for changes to _NET_FRAME_EXTENTS property
+    static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
+    if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
     {
-        // these are inside the client area
-        gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow),
-                         GTK_WIDGET(child->m_widget),
-                         child->m_x,
-                         child->m_y,
-                         child->m_width,
-                         child->m_height );
-    }
+        wxSize decorSize = win->m_decorSize;
+        int left, right, top, bottom;
+        if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
+            decorSize.Set(left + right, top + bottom);
 
-    // resize on OnInternalIdle
-    parent->GtkUpdateSize();
+        win->GTKUpdateDecorSize(decorSize);
+    }
+    return false;
+}
 }
 
 // ----------------------------------------------------------------------------
@@ -298,16 +448,18 @@ static void wxInsertChildInTopLevelWindow( wxTopLevelWindowGTK* parent, wxWindow
 
 void wxTopLevelWindowGTK::Init()
 {
-    m_sizeSet = FALSE;
-    m_miniEdge = 0;
-    m_miniTitle = 0;
-    m_mainWidget = (GtkWidget*) NULL;
-    m_insertInClientArea = TRUE;
-    m_isIconized = FALSE;
-    m_fsIsShowing = FALSE;
-    m_themeEnabled = TRUE;
-    m_gdkDecor = m_gdkFunc = 0;
-    m_grabbed = FALSE;
+    m_mainWidget = NULL;
+    m_isIconized = false;
+    m_fsIsShowing = false;
+    m_themeEnabled = true;
+    m_gdkDecor =
+    m_gdkFunc = 0;
+    m_grabbed = false;
+    m_deferShow = true;
+    m_deferShowAllowed = true;
+    m_updateDecorSize = true;
+
+    m_urgency_hint = -2;
 }
 
 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
@@ -321,78 +473,103 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent,
     // always create a frame of some reasonable, even if arbitrary, size (at
     // least for MSW compatibility)
     wxSize size = sizeOrig;
-    if ( size.x == -1 || size.y == -1 )
-    {
-        wxSize sizeDpy = wxGetDisplaySize();
-        if ( size.x == -1 )
-            size.x = sizeDpy.x / 3;
-        if ( size.y == -1 )
-            size.y = sizeDpy.y / 5;
-    }
+    size.x = WidthDefault(size.x);
+    size.y = HeightDefault(size.y);
 
     wxTopLevelWindows.Append( this );
 
-    m_needParent = FALSE;
-
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
     {
         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
-        return FALSE;
+        return false;
     }
 
     m_title = title;
 
-    m_insertCallback = (wxInsertChildFunction) wxInsertChildInTopLevelWindow;
-
-    GtkWindowType win_type = GTK_WINDOW_TOPLEVEL;
+    // NB: m_widget may be !=NULL if it was created by derived class' Create,
+    //     e.g. in wxTaskBarIconAreaGTK
+    if (m_widget == NULL)
+    {
+#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
+        // we must create HildonWindow and not a normal GtkWindow as the latter
+        // doesn't look correctly in Maemo environment and it must also be
+        // registered with the main program object
+        m_widget = hildon_window_new();
+        hildon_program_add_window(wxTheApp->GetHildonProgram(),
+                                  HILDON_WINDOW(m_widget));
+#else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
+        m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+        if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
+        {
+            // Tell WM that this is a dialog window and make it center
+            // on parent by default (this is what GtkDialog ctor does):
+            gtk_window_set_type_hint(GTK_WINDOW(m_widget),
+                                     GDK_WINDOW_TYPE_HINT_DIALOG);
+            gtk_window_set_position(GTK_WINDOW(m_widget),
+                                    GTK_WIN_POS_CENTER_ON_PARENT);
+        }
+        else
+        {
+            if (style & wxFRAME_TOOL_WINDOW)
+            {
+                gtk_window_set_type_hint(GTK_WINDOW(m_widget),
+                                         GDK_WINDOW_TYPE_HINT_UTILITY);
+
+                // On some WMs, like KDE, a TOOL_WINDOW will still show
+                // on the taskbar, but on Gnome a TOOL_WINDOW will not.
+                // For consistency between WMs and with Windows, we
+                // should set the NO_TASKBAR flag which will apply
+                // the set_skip_taskbar_hint if it is available,
+                // ensuring no taskbar entry will appear.
+                style |= wxFRAME_NO_TASKBAR;
+            }
+        }
+#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 
-    if (style & wxFRAME_TOOL_WINDOW)
-        win_type = GTK_WINDOW_POPUP;
+        g_object_ref(m_widget);
+    }
 
-    if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
+    wxWindow *topParent = wxGetTopLevelParent(m_parent);
+    if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
+                       (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
+                       (style & wxFRAME_FLOAT_ON_PARENT)))
     {
-        // there is no more GTK_WINDOW_DIALOG in 2.0
-#ifdef __WXGTK20__
-        win_type = GTK_WINDOW_TOPLEVEL;
-#else
-        win_type = GTK_WINDOW_DIALOG;
-#endif
+        gtk_window_set_transient_for( GTK_WINDOW(m_widget),
+                                      GTK_WINDOW(topParent->m_widget) );
     }
 
-    m_widget = gtk_window_new( win_type );
+    if (style & wxFRAME_NO_TASKBAR)
+    {
+        gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
+    }
 
-    if (m_parent && (GTK_IS_WINDOW(m_parent->m_widget)) &&
-        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG))
+    if (style & wxSTAY_ON_TOP)
     {
-        gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) );
+        gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
     }
+    if (style & wxMAXIMIZE)
+        gtk_window_maximize(GTK_WINDOW(m_widget));
 
-    if (!name.IsEmpty())
-        gtk_window_set_wmclass( GTK_WINDOW(m_widget), wxGTK_CONV( name ), wxGTK_CONV( name ) );
+#if 0
+    if (!name.empty())
+        gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
+#endif
 
     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 
-    gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
-        GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this );
+    g_signal_connect (m_widget, "delete_event",
+                      G_CALLBACK (gtk_frame_delete_callback), this);
 
-    // m_mainWidget holds the toolbar, the menubar and the client area
-    m_mainWidget = gtk_pizza_new();
+    // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
+    m_mainWidget = gtk_vbox_new(false, 0);
     gtk_widget_show( m_mainWidget );
     GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 
-    // for m_mainWidget themes
-    gtk_signal_connect( GTK_OBJECT(m_mainWidget), "expose_event",
-                GTK_SIGNAL_FUNC(gtk_window_expose_callback), (gpointer)this );
-#ifndef __WXGTK20__
-    gtk_signal_connect( GTK_OBJECT(m_mainWidget), "draw",
-                GTK_SIGNAL_FUNC(gtk_window_draw_callback), (gpointer)this );
-#endif
-
-    // m_wxwindow only represents the client area without toolbar and menubar
-    m_wxwindow = gtk_pizza_new();
+    // m_wxwindow is the client area
+    m_wxwindow = wxPizza::New();
     gtk_widget_show( m_wxwindow );
     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 
@@ -402,89 +579,110 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 
     if (m_parent) m_parent->AddChild( this );
 
-    // the user resized the frame by dragging etc.
-    gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
-        GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this );
+    g_signal_connect(m_wxwindow, "size_allocate",
+        G_CALLBACK(size_allocate), this);
 
+    g_signal_connect (m_widget, "size_request",
+                      G_CALLBACK (wxgtk_tlw_size_request_callback), this);
     PostCreation();
 
     if ((m_x != -1) || (m_y != -1))
         gtk_widget_set_uposition( m_widget, m_x, m_y );
 
-    gtk_window_set_default_size( GTK_WINDOW(m_widget), m_width, m_height );
-
     //  we cannot set MWM hints and icons before the widget has
     //  been realized, so we do this directly after realization
-    gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
-                        GTK_SIGNAL_FUNC(gtk_frame_realized_callback), (gpointer) this );
-
-    // the only way to get the window size is to connect to this event
-    gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
-        GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this );
+    g_signal_connect (m_widget, "realize",
+                      G_CALLBACK (gtk_frame_realized_callback), this);
 
     // map and unmap for iconized state
-    gtk_signal_connect( GTK_OBJECT(m_widget), "map_event",
-        GTK_SIGNAL_FUNC(gtk_frame_map_callback), (gpointer)this );
-    gtk_signal_connect( GTK_OBJECT(m_widget), "unmap_event",
-        GTK_SIGNAL_FUNC(gtk_frame_unmap_callback), (gpointer)this );
+    g_signal_connect (m_widget, "map_event",
+                      G_CALLBACK (gtk_frame_map_callback), this);
+    g_signal_connect (m_widget, "unmap_event",
+                      G_CALLBACK (gtk_frame_unmap_callback), this);
 
-    // the only way to get the window size is to connect to this event
-    gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
-        GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this );
+    // for wxMoveEvent
+    g_signal_connect (m_widget, "configure_event",
+                      G_CALLBACK (gtk_frame_configure_callback), this);
 
-    // disable native tab traversal
-    gtk_signal_connect( GTK_OBJECT(m_widget), "focus",
-        GTK_SIGNAL_FUNC(gtk_frame_focus_callback), (gpointer)this );
+    // activation
+    g_signal_connect_after (m_widget, "focus_in_event",
+                      G_CALLBACK (gtk_frame_focus_in_callback), this);
+    g_signal_connect_after (m_widget, "focus_out_event",
+                      G_CALLBACK (gtk_frame_focus_out_callback), this);
 
-    // decorations
-    if ((m_miniEdge > 0) || (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER))
+    gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
+    g_signal_connect(m_widget, "property_notify_event",
+        G_CALLBACK(property_notify_event), this);
+
+    // translate wx decorations styles into Motif WM hints (they are recognized
+    // by other WMs as well)
+
+    // always enable moving the window as we have no separate flag for enabling
+    // it
+    m_gdkFunc = GDK_FUNC_MOVE;
+
+    if ( style & wxCLOSE_BOX )
+        m_gdkFunc |= GDK_FUNC_CLOSE;
+
+    if ( style & wxMINIMIZE_BOX )
+        m_gdkFunc |= GDK_FUNC_MINIMIZE;
+
+    if ( style & wxMAXIMIZE_BOX )
+        m_gdkFunc |= GDK_FUNC_MAXIMIZE;
+
+    if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
     {
         m_gdkDecor = 0;
-        m_gdkFunc = 0;
     }
-    else
+    else // have border
     {
-        m_gdkDecor = (long) GDK_DECOR_BORDER;
-        m_gdkFunc = (long) GDK_FUNC_MOVE;
+        m_gdkDecor = GDK_DECOR_BORDER;
 
-        // All this is for Motif Window Manager "hints" and is supposed to be
-        // recognized by other WMs as well.
-        if ((style & wxCAPTION) != 0)
+        if ( style & wxCAPTION )
             m_gdkDecor |= GDK_DECOR_TITLE;
-        if ((style & wxSYSTEM_MENU) != 0)
-        {
-            m_gdkFunc |= GDK_FUNC_CLOSE;
+
+        if ( style & wxSYSTEM_MENU )
             m_gdkDecor |= GDK_DECOR_MENU;
-        }
-        if ((style & wxMINIMIZE_BOX) != 0)
-        {
-            m_gdkFunc |= GDK_FUNC_MINIMIZE;
+
+        if ( style & wxMINIMIZE_BOX )
             m_gdkDecor |= GDK_DECOR_MINIMIZE;
-        }
-        if ((style & wxMAXIMIZE_BOX) != 0)
-        {
-            m_gdkFunc |= GDK_FUNC_MAXIMIZE;
+
+        if ( style & wxMAXIMIZE_BOX )
             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
-        }
-        if ((style & wxRESIZE_BORDER) != 0)
+
+        if ( style & wxRESIZE_BORDER )
         {
            m_gdkFunc |= GDK_FUNC_RESIZE;
            m_gdkDecor |= GDK_DECOR_RESIZEH;
         }
     }
 
-    return TRUE;
+    m_decorSize = GetCachedDecorSize();
+    int w, h;
+    GTKDoGetSize(&w, &h);
+    gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
+
+    return true;
 }
 
 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 {
+#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
+    // it can also be a (standard) dialog
+    if ( HILDON_IS_WINDOW(m_widget) )
+    {
+        hildon_program_remove_window(wxTheApp->GetHildonProgram(),
+                                     HILDON_WINDOW(m_widget));
+    }
+#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
+
     if (m_grabbed)
     {
-        wxASSERT_MSG( FALSE, "Window still grabbed");
+        wxFAIL_MSG(wxT("Window still grabbed"));
         RemoveGrab();
     }
-    
-    m_isBeingDeleted = TRUE;
+
+    SendDestroyEvent();
 
     // it may also be GtkScrolledWindow in the case of an MDI child
     if (GTK_IS_WINDOW(m_widget))
@@ -492,130 +690,234 @@ wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
         gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
     }
 
-    wxTopLevelWindows.DeleteObject( this );
-
-    if (wxTheApp->GetTopWindow() == this)
-        wxTheApp->SetTopWindow( (wxWindow*) NULL );
-
-    if ((wxTopLevelWindows.Number() == 0) &&
-        (wxTheApp->GetExitOnFrameDelete()))
-    {
-        wxTheApp->ExitMainLoop();
-    }
+    if (g_activeFrame == this)
+        g_activeFrame = NULL;
+    if (g_lastActiveFrame == this)
+        g_lastActiveFrame = NULL;
 }
 
+bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
+{
+    if (enable)
+        m_gdkFunc |= GDK_FUNC_CLOSE;
+    else
+        m_gdkFunc &= ~GDK_FUNC_CLOSE;
+
+    if (GTK_WIDGET_REALIZED(m_widget) && (m_widget->window))
+        gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc );
 
-// X11 ICCCM values for window layers
-#define  WIN_LAYER_NORMAL      4
-#define  WIN_LAYER_ABOVE_DOCK  10
+    return true;
+}
 
-// X11 window manager property name
-#define  XA_WIN_LAYER          "_WIN_LAYER"
+bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
+{
+    if (show == m_fsIsShowing)
+        return false; // return what?
 
-// X11 window manager property name atom
-static Atom gs_XA_WIN_LAYER = 0;
+    m_fsIsShowing = show;
 
+    wxX11FullScreenMethod method =
+        wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
+                                 (WXWindow)GDK_ROOT_WINDOW());
 
-static void wx_win_hints_set_layer(GtkWidget *window, int layer)
-{
-#ifndef __WXGTK20__
-    XEvent xev;
-    GdkWindowPrivate *priv;
-    gint prev_error;
-  
-    prev_error = gdk_error_warnings;
-    gdk_error_warnings = 0;
-    priv = (GdkWindowPrivate*)(GTK_WIDGET(window)->window);
-  
-    if (GTK_WIDGET_MAPPED(window))
+    // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
+    //     to switch to fullscreen, which is not always available. We must
+    //     check if WM supports the spec and use legacy methods if it
+    //     doesn't.
+    if ( method == wxX11_FS_WMSPEC )
     {
-        xev.type = ClientMessage;
-        xev.xclient.type = ClientMessage;
-        xev.xclient.window = priv->xwindow;
-        xev.xclient.message_type = gs_XA_WIN_LAYER;
-        xev.xclient.format = 32;
-        xev.xclient.data.l[0] = (long)layer;
-        xev.xclient.data.l[1] = gdk_time_get();
-      
-        XSendEvent(GDK_DISPLAY(), GDK_ROOT_WINDOW(), False,
-            SubstructureNotifyMask, (XEvent*) &xev);
+        if (show)
+            gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
+        else
+            gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
     }
     else
     {
-        long data[1];
-      
-        data[0] = layer;
-        XChangeProperty(GDK_DISPLAY(), priv->xwindow, gs_XA_WIN_LAYER,
-              XA_CARDINAL, 32, PropModeReplace, (unsigned char *)data, 1);
-    }
-    gdk_error_warnings = prev_error;
-#endif
-}
+        GdkWindow *window = m_widget->window;
 
-bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long style )
-{
-    if (show == m_fsIsShowing) return FALSE; // return what?
+        if (show)
+        {
+            GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
+            GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
 
-    if (gs_XA_WIN_LAYER == 0)
-    {
-        // Initialose X11 Atom only once
-        gs_XA_WIN_LAYER = XInternAtom( GDK_DISPLAY(), XA_WIN_LAYER, False );
-    }
+            int screen_width,screen_height;
+            wxDisplaySize( &screen_width, &screen_height );
 
-    m_fsIsShowing = show;
+            gint client_x, client_y, root_x, root_y;
+            gint width, height;
 
-    if (show)
-    {
-        m_fsSaveGdkFunc = m_gdkFunc;
-        m_fsSaveGdkDecor = m_gdkDecor;
-        m_fsSaveFlag = style;
-        GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
-        GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
+            m_fsSaveGdkFunc = m_gdkFunc;
+            m_fsSaveGdkDecor = m_gdkDecor;
+            m_gdkFunc = m_gdkDecor = 0;
+            gdk_window_set_decorations(window, (GdkWMDecoration)0);
+            gdk_window_set_functions(window, (GdkWMFunction)0);
 
-        int screen_width,screen_height;
-        wxDisplaySize( &screen_width, &screen_height );
-        
-               gint client_x, client_y, root_x, root_y;
-               gint width, height;
+            gdk_window_get_origin (m_widget->window, &root_x, &root_y);
+            gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
+                         &width, &height, NULL);
 
-               gdk_window_get_origin (m_widget->window, &root_x, &root_y);
-               gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
-                                        &width, &height, NULL);
-                     
-        wx_win_hints_set_layer( m_widget, WIN_LAYER_ABOVE_DOCK );
+            gdk_window_move_resize (m_widget->window, -client_x, -client_y,
+                        screen_width + 1, screen_height + 1);
 
-               gdk_window_move_resize (m_widget->window, -client_x, -client_y,
-                                       screen_width + 1, screen_height + 1);
-    }
-    else
-    {
-        wx_win_hints_set_layer( m_widget, WIN_LAYER_NORMAL );
-        
-        SetSize( m_fsSaveFrame.x, m_fsSaveFrame.y, m_fsSaveFrame.width, m_fsSaveFrame.height );
+            wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
+                                    (WXWindow)GDK_ROOT_WINDOW(),
+                                    (WXWindow)GDK_WINDOW_XWINDOW(window),
+                                    show, &m_fsSaveFrame, method);
+        }
+        else // hide
+        {
+            m_gdkFunc = m_fsSaveGdkFunc;
+            m_gdkDecor = m_fsSaveGdkDecor;
+            gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
+            gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
+
+            wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
+                                    (WXWindow)GDK_ROOT_WINDOW(),
+                                    (WXWindow)GDK_WINDOW_XWINDOW(window),
+                                    show, &m_fsSaveFrame, method);
+
+            SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
+                    m_fsSaveFrame.width, m_fsSaveFrame.height);
+        }
     }
 
-    return TRUE;
+    // documented behaviour is to show the window if it's still hidden when
+    // showing it full screen
+    if (show)
+        Show();
+
+    return true;
 }
 
 // ----------------------------------------------------------------------------
 // overridden wxWindow methods
 // ----------------------------------------------------------------------------
 
+void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
+{
+    wxCHECK_RET( m_widget, wxT("invalid frame") );
+
+    gtk_widget_queue_draw( m_widget );
+
+    if (m_wxwindow && m_wxwindow->window)
+        gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
+}
+
 bool wxTopLevelWindowGTK::Show( bool show )
 {
     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 
-    if (show && !m_sizeSet)
+    bool deferShow = show && !m_isShown && m_deferShow;
+    if (deferShow)
     {
-        /* by calling GtkOnSize here, we don't have to call
-           either after showing the frame, which would entail
-           much ugly flicker or from within the size_allocate
-           handler, because GTK 1.1.X forbids that. */
+        deferShow = m_deferShowAllowed && !GTK_WIDGET_REALIZED(m_widget);
+        if (deferShow)
+        {
+            deferShow = g_signal_handler_find(m_widget,
+                GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
+                g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
+                0, NULL, NULL, this) != 0;
+        }
+        GdkScreen* screen = NULL;
+        if (deferShow)
+        {
+            screen = gtk_widget_get_screen(m_widget);
+            GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
+            deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
+            // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
+            // to m_decorSize, it breaks saving/restoring window size with
+            // GetSize()/SetSize() because it makes window bigger between each
+            // restore and save.
+            m_updateDecorSize = deferShow;
+        }
+        if (deferShow)
+        {
+            // Fluxbox support for _NET_REQUEST_FRAME_EXTENTS is broken
+            const char* name = gdk_x11_screen_get_window_manager_name(screen);
+            deferShow = strcmp(name, "Fluxbox") != 0;
+            m_updateDecorSize = deferShow;
+        }
+
+        m_deferShow = deferShow;
+    }
+    if (deferShow)
+    {
+        // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
+        // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
+        // notification is received, so correct frame extents are known.
+        // This allows resizing m_widget to keep the overall size in sync with
+        // what wxWidgets expects it to be without an obvious change in the
+        // window size immediately after it becomes visible.
+
+        // Realize m_widget, so m_widget->window can be used. Realizing normally
+        // causes the widget tree to be size_allocated, which generates size
+        // events in the wrong order. However, the size_allocates will not be
+        // done if the allocation is not the default (1,1).
+        const int alloc_width = m_widget->allocation.width;
+        if (alloc_width == 1)
+            m_widget->allocation.width = 2;
+        gtk_widget_realize(m_widget);
+        if (alloc_width == 1)
+            m_widget->allocation.width = 1;
+
+        // send _NET_REQUEST_FRAME_EXTENTS
+        XClientMessageEvent xevent;
+        memset(&xevent, 0, sizeof(xevent));
+        xevent.type = ClientMessage;
+        xevent.window = gdk_x11_drawable_get_xid(m_widget->window);
+        xevent.message_type = gdk_x11_atom_to_xatom_for_display(
+            gdk_drawable_get_display(m_widget->window),
+            gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
+        xevent.format = 32;
+        Display* display = gdk_x11_drawable_get_xdisplay(m_widget->window);
+        XSendEvent(display, DefaultRootWindow(display), false,
+            SubstructureNotifyMask | SubstructureRedirectMask,
+            (XEvent*)&xevent);
+
+        // defer calling gtk_widget_show()
+        m_isShown = true;
+        return true;
+    }
+
+    if (show && !GTK_WIDGET_REALIZED(m_widget))
+    {
+        // size_allocate signals occur in reverse order (bottom to top).
+        // Things work better if the initial wxSizeEvents are sent (from the
+        // top down), before the initial size_allocate signals occur.
+        wxSizeEvent event(GetSize(), GetId());
+        event.SetEventObject(this);
+        HandleWindowEvent(event);
+    }
 
-        GtkOnSize( m_x, m_y, m_width, m_height );
+    bool change = base_type::Show(show);
+
+    if (change && !show)
+    {
+        // make sure window has a non-default position, so when it is shown
+        // again, it won't be repositioned by WM as if it were a new window
+        // Note that this must be done _after_ the window is hidden.
+        gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
+    }
+
+    return change;
+}
+
+void wxTopLevelWindowGTK::ShowWithoutActivating()
+{
+    if (!m_isShown)
+    {
+#if GTK_CHECK_VERSION(2,6,0)
+        if (!gtk_check_version(2,6,0))
+            gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
+#endif // GTK+ 2.6+
+
+        Show(true);
     }
+}
 
-    return wxWindow::Show( show );
+void wxTopLevelWindowGTK::Raise()
+{
+    gtk_window_present( GTK_WINDOW( m_widget ) );
 }
 
 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
@@ -623,234 +925,238 @@ void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXU
     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 }
 
-void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
+// ----------------------------------------------------------------------------
+// window geometry
+// ----------------------------------------------------------------------------
+
+void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 {
-    wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
+    wxSize size(m_width, m_height);
+    size -= m_decorSize;
+    if (size.x < 0) size.x = 0;
+    if (size.y < 0) size.y = 0;
+#if wxUSE_LIBHILDON2
+    if (width) {
+       if (size.x == 720)
+               *width = 696;
+       else
+               *width = size.x;
+    }
+    if (height) {
+       if (size.y == 420)
+               *height = 396;
+       else if (size.y == 270)
+               *height = 246;
+            else
+               *height = size.y;
+    }
+#else // wxUSE_LIBHILDON2
+    if (width)  *width  = size.x;
+    if (height) *height = size.y;
+#endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
+}
 
-    // this shouldn't happen: wxFrame, wxMDIParentFrame and wxMDIChildFrame have m_wxwindow
-    wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid frame") );
+void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
+{
+    wxCHECK_RET( m_widget, wxT("invalid frame") );
 
-    // avoid recursions
-    if (m_resizing)
-        return;
-    m_resizing = TRUE;
+    m_deferShowAllowed = true;
 
+    // deal with the position first
     int old_x = m_x;
     int old_y = m_y;
 
-    int old_width = m_width;
-    int old_height = m_height;
-
-    if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0)
+    if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
     {
-        if (x != -1) m_x = x;
-        if (y != -1) m_y = y;
+        // -1 means "use existing" unless the flag above is specified
+        if ( x != -1 )
+            m_x = x;
+        if ( y != -1 )
+            m_y = y;
     }
-    else
+    else // wxSIZE_ALLOW_MINUS_ONE
     {
         m_x = x;
         m_y = y;
     }
-    if (width != -1) m_width = width;
-    if (height != -1) m_height = height;
 
-/*
-    if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
+    if ( m_x != old_x || m_y != old_y )
     {
-        if (width == -1) m_width = 80;
+        gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
     }
 
-    if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
+    const wxSize oldSize(m_width, m_height);
+    if (width >= 0)
+        m_width = width;
+    if (height >= 0)
+        m_height = height;
+    ConstrainSize();
+    if (m_width != oldSize.x || m_height != oldSize.y)
     {
-       if (height == -1) m_height = 26;
+        int w, h;
+        GTKDoGetSize(&w, &h);
+        gtk_window_resize(GTK_WINDOW(m_widget), w, h);
+
+        GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
+        wxSizeEvent event(GetSize(), GetId());
+        event.SetEventObject(this);
+        HandleWindowEvent(event);
     }
-*/
-
-    int minWidth = GetMinWidth(),
-        minHeight = GetMinHeight(),
-        maxWidth = GetMaxWidth(),
-        maxHeight = GetMaxHeight();
-
-    if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth;
-    if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
-    if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth;
-    if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight;
-
-    if ((m_x != -1) || (m_y != -1))
-    {
-        if ((m_x != old_x) || (m_y != old_y))
-        {
-            gtk_widget_set_uposition( m_widget, m_x, m_y );
-        }
-    }
-
-    if ((m_width != old_width) || (m_height != old_height))
-    {
-        if (m_widget->window)
-            gdk_window_resize( m_widget->window, m_width, m_height );
-        else
-            gtk_window_set_default_size( GTK_WINDOW(m_widget), m_width, m_height );
+}
 
-        /* we set the size in GtkOnSize, i.e. mostly the actual resizing is
-           done either directly before the frame is shown or in idle time
-           so that different calls to SetSize() don't lead to flicker. */
-        m_sizeSet = FALSE;
-    }
+void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
+{
+    base_type::DoSetClientSize(width, height);
 
-    m_resizing = FALSE;
+    // Since client size is being explicitly set, don't change it later
+    // Has to be done after calling base because it calls SetSize,
+    // which sets this true
+    m_deferShowAllowed = false;
 }
 
 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
 {
-    wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
+    wxASSERT_MSG(m_widget, wxT("invalid frame"));
 
-    wxWindow::DoGetClientSize( width, height );
-    if (height)
+    if ( IsIconized() )
     {
-        // mini edge
-        *height -= m_miniEdge*2 + m_miniTitle;
+        // for consistency with wxMSW, client area is supposed to be empty for
+        // the iconized windows
+        if ( width )
+            *width = 0;
+        if ( height )
+            *height = 0;
     }
-    if (width)
+    else
     {
-        *width -= m_miniEdge*2;
+        GTKDoGetSize(width, height);
     }
 }
 
-void wxTopLevelWindowGTK::DoSetClientSize( int width, int height )
+void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
+                                          int maxW, int maxH,
+                                          int incW, int incH )
 {
-    wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
+    base_type::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH);
 
-    DoSetSize(-1, -1,
-              width + m_miniEdge*2, height  + m_miniEdge*2 + m_miniTitle, 0);
+    const wxSize minSize = GetMinSize();
+    const wxSize maxSize = GetMaxSize();
+    GdkGeometry hints;
+    int hints_mask = 0;
+    if (minSize.x > 0 || minSize.y > 0)
+    {
+        hints_mask |= GDK_HINT_MIN_SIZE;
+        hints.min_width = minSize.x - m_decorSize.x;
+        if (hints.min_width < 0)
+            hints.min_width = 0;
+        hints.min_height = minSize.y - m_decorSize.y;
+        if (hints.min_height < 0)
+            hints.min_height = 0;
+    }
+    if (maxSize.x > 0 || maxSize.y > 0)
+    {
+        hints_mask |= GDK_HINT_MAX_SIZE;
+        hints.max_width = maxSize.x - m_decorSize.x;
+        if (hints.max_width < 0)
+            hints.max_width = INT_MAX;
+        hints.max_height = maxSize.y - m_decorSize.y;
+        if (hints.max_height < 0)
+            hints.max_height = INT_MAX;
+    }
+    if (incW > 0 || incH > 0)
+    {
+        hints_mask |= GDK_HINT_RESIZE_INC;
+        hints.width_inc  = incW > 0 ? incW : 1;
+        hints.height_inc = incH > 0 ? incH : 1;
+    }
+    gtk_window_set_geometry_hints(
+        (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
 }
 
-void wxTopLevelWindowGTK::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y),
-                                     int width, int height )
+void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
 {
-    // due to a bug in gtk, x,y are always 0
-    // m_x = x;
-    // m_y = y;
-
-    // avoid recursions
-    if (m_resizing) return;
-    m_resizing = TRUE;
-
-    if ( m_wxwindow == NULL ) return;
-
-    m_width = width;
-    m_height = height;
-
-    /* wxMDIChildFrame derives from wxFrame but it _is_ a wxWindow as it uses
-       wxWindow::Create to create it's GTK equivalent. m_mainWidget is only
-       set in wxFrame::Create so it is used to check what kind of frame we
-       have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we
-       skip the part which handles m_frameMenuBar, m_frameToolBar and (most
-       importantly) m_mainWidget */
-
-    int minWidth = GetMinWidth(),
-        minHeight = GetMinHeight(),
-        maxWidth = GetMaxWidth(),
-        maxHeight = GetMaxHeight();
-
-    if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth;
-    if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
-    if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth;
-    if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight;
-
-    if (m_mainWidget)
+    if (!IsMaximized() && !IsFullScreen())
+        GetCachedDecorSize() = decorSize;
+    if (m_updateDecorSize && m_decorSize != decorSize)
     {
-        // set size hints
-        gint            flag = 0; // GDK_HINT_POS;
-        GdkGeometry     geom;
-
-        if ((minWidth != -1) || (minHeight != -1)) flag |= GDK_HINT_MIN_SIZE;
-        if ((maxWidth != -1) || (maxHeight != -1)) flag |= GDK_HINT_MAX_SIZE;
-
-        geom.min_width = minWidth;
-        geom.min_height = minHeight;
-
-            // Because of the way we set GDK_HINT_MAX_SIZE above, if either of
-            // maxHeight or maxWidth is set, we must set them both, else the
-            // remaining -1 will be taken literally.
-
-            // I'm certain this also happens elsewhere, and is the probable
-            // cause of other such things as:
-            // Gtk-WARNING **: gtk_widget_size_allocate():
-            //       attempt to allocate widget with width 65535 and height 600
-            // but I don't have time to track them all now..
-            // 
-            // Really we need to encapulate all this height/width business and
-            // stop any old method from ripping at the members directly and
-            // scattering -1's without regard for who might resolve them later.
-
-        geom.max_width = ( maxHeight == -1 ) ? maxWidth
-                         : ( maxWidth == -1 ) ? wxGetDisplaySize().GetWidth()
-                           : maxWidth ;
-
-        geom.max_height = ( maxWidth == -1 ) ? maxHeight    // ( == -1 here )
-                          : ( maxHeight == -1 ) ? wxGetDisplaySize().GetHeight()
-                            : maxHeight ;
-
-        gtk_window_set_geometry_hints( GTK_WINDOW(m_widget),
-                                       (GtkWidget*) NULL,
-                                       &geom,
-                                       (GdkWindowHints) flag );
-
-        /* I revert back to wxGTK's original behaviour. m_mainWidget holds the
-         * menubar, the toolbar and the client area, which is represented by
-         * m_wxwindow.
-         * this hurts in the eye, but I don't want to call SetSize()
-         * because I don't want to call any non-native functions here. */
-
-        int client_x = m_miniEdge;
-        int client_y = m_miniEdge + m_miniTitle;
-        int client_w = m_width - 2*m_miniEdge;
-        int client_h = m_height - 2*m_miniEdge - m_miniTitle;
-
-        gtk_pizza_set_size( GTK_PIZZA(m_mainWidget),
-                              m_wxwindow,
-                              client_x, client_y, client_w, client_h );
+        const wxSize diff = decorSize - m_decorSize;
+        m_decorSize = decorSize;
+        bool resized = false;
+        if (m_deferShow)
+        {
+            // keep overall size unchanged by shrinking m_widget
+            int w, h;
+            GTKDoGetSize(&w, &h);
+            // but not if size would be less than minimum, it won't take effect
+            const wxSize minSize = GetMinSize();
+            if (w >= minSize.x && h >= minSize.y)
+            {
+                gtk_window_resize(GTK_WINDOW(m_widget), w, h);
+                resized = true;
+            }
+        }
+        if (!resized)
+        {
+            // adjust overall size to match change in frame extents
+            m_width  += diff.x;
+            m_height += diff.y;
+            if (m_width  < 0) m_width  = 0;
+            if (m_height < 0) m_height = 0;
+            m_oldClientWidth = 0;
+            gtk_widget_queue_resize(m_wxwindow);
+        }
     }
-    else
+    if (m_deferShow)
     {
-        // If there is no m_mainWidget between m_widget and m_wxwindow there
-        // is no need to set the size or position of m_wxwindow.
+        // gtk_widget_show() was deferred, do it now
+        m_deferShow = false;
+        GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
+        wxSizeEvent sizeEvent(GetSize(), GetId());
+        sizeEvent.SetEventObject(this);
+        HandleWindowEvent(sizeEvent);
+
+        gtk_widget_show(m_widget);
+
+        wxShowEvent showEvent(GetId(), true);
+        showEvent.SetEventObject(this);
+        HandleWindowEvent(showEvent);
     }
+}
 
-    m_sizeSet = TRUE;
-
-    // send size event to frame
-    wxSizeEvent event( wxSize(m_width,m_height), GetId() );
-    event.SetEventObject( this );
-    GetEventHandler()->ProcessEvent( event );
-
-    m_resizing = FALSE;
+wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
+{
+    static wxSize size[8];
+
+    int index = 0;
+    // title bar
+    if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
+        index = 1;
+    // border
+    if (m_gdkDecor & GDK_DECOR_BORDER)
+        index |= 2;
+    // utility window decor can be different
+    if (m_windowStyle & wxFRAME_TOOL_WINDOW)
+        index |= 4;
+    return size[index];
 }
 
 void wxTopLevelWindowGTK::OnInternalIdle()
 {
-    if (!m_sizeSet && GTK_WIDGET_REALIZED(m_wxwindow))
+    wxWindow::OnInternalIdle();
+
+    // Synthetize activate events.
+    if ( g_sendActivateEvent != -1 )
     {
-        GtkOnSize( m_x, m_y, m_width, m_height );
+        bool activate = g_sendActivateEvent != 0;
 
-        // we'll come back later
-        if (g_isIdle)
-            wxapp_install_idle_handler();
-        return;
-    }
+        // if (!activate) wxPrintf( wxT("de") );
+        // wxPrintf( wxT("activate\n") );
 
-    // set the focus if not done yet and if we can already do it
-    if ( GTK_WIDGET_REALIZED(m_wxwindow) )
-    {
-        if ( g_delayedFocus &&
-             wxGetTopLevelParent((wxWindow*)g_delayedFocus) == this )
-        {
-            g_delayedFocus->SetFocus();
-            g_delayedFocus = NULL;
-        }
-    }
+        // do it only once
+        g_sendActivateEvent = -1;
 
-    wxWindow::OnInternalIdle();
+        wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
+    }
 }
 
 // ----------------------------------------------------------------------------
@@ -861,42 +1167,30 @@ void wxTopLevelWindowGTK::SetTitle( const wxString &title )
 {
     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 
-    m_title = title;
-    gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
-}
-
-void wxTopLevelWindowGTK::DoSetIcon( const wxIcon &icon )
-{
-    if ( !icon.Ok() )
-        return;
-
-    if (!m_widget->window)
+    if ( title == m_title )
         return;
 
-    wxMask *mask = icon.GetMask();
-    GdkBitmap *bm = (GdkBitmap *) NULL;
-    if (mask) bm = mask->GetBitmap();
-
-    gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
-}
+    m_title = title;
 
-void wxTopLevelWindowGTK::SetIcon( const wxIcon &icon )
-{
-    SetIcons( wxIconBundle( icon ) );
+    gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 }
 
 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
 {
     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
-    GdkWindow* window = m_widget->window;
 
-    wxTopLevelWindowBase::SetIcons( icons );
+    base_type::SetIcons(icons);
 
-    DoSetIcon( icons.GetIcon( -1 ) );
-    if ( window )
+    // Setting icons before window is realized can cause a GTK assertion if
+    // another TLW is realized before this one, and it has this one as it's
+    // transient parent. The life demo exibits this problem.
+    if (GTK_WIDGET_REALIZED(m_widget))
     {
-        wxSetIconsX11( (WXDisplay*)GDK_WINDOW_XDISPLAY( window ),
-                       (WXWindow)GDK_WINDOW_XWINDOW( window ), icons );
+        GList* list = NULL;
+        for (size_t i = icons.GetIconCount(); i--;)
+            list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
+        gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
+        g_list_free(list);
     }
 }
 
@@ -904,37 +1198,34 @@ void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
 // frame state: maximized/iconized/normal
 // ----------------------------------------------------------------------------
 
-void wxTopLevelWindowGTK::Maximize(bool WXUNUSED(maximize))
+void wxTopLevelWindowGTK::Maximize(bool maximize)
 {
-    wxFAIL_MSG( _T("not implemented") );
+    if (maximize)
+        gtk_window_maximize( GTK_WINDOW( m_widget ) );
+    else
+        gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
 }
 
 bool wxTopLevelWindowGTK::IsMaximized() const
 {
-  //    wxFAIL_MSG( _T("not implemented") );
+    if(!m_widget->window)
+        return false;
 
-    // This is an approximation
-    return FALSE;
+    return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
 }
 
 void wxTopLevelWindowGTK::Restore()
 {
-    wxFAIL_MSG( _T("not implemented") );
+    // "Present" seems similar enough to "restore"
+    gtk_window_present( GTK_WINDOW( m_widget ) );
 }
 
 void wxTopLevelWindowGTK::Iconize( bool iconize )
 {
-   if (iconize)
-   {
-       GdkWindow *window = m_widget->window;
-
-       // you should do it later, for example from OnCreate() handler
-       wxCHECK_RET( window, _T("frame not created yet - can't iconize") );
-
-       XIconifyWindow( GDK_WINDOW_XDISPLAY( window ),
-                       GDK_WINDOW_XWINDOW( window ),
-                       DefaultScreen( GDK_DISPLAY() ) );
-   }
+    if (iconize)
+        gtk_window_iconify( GTK_WINDOW( m_widget ) );
+    else
+        gtk_window_deiconify( GTK_WINDOW( m_widget ) );
 }
 
 bool wxTopLevelWindowGTK::IsIconized() const
@@ -955,9 +1246,9 @@ void wxTopLevelWindowGTK::AddGrab()
 {
     if (!m_grabbed)
     {
-        m_grabbed = TRUE;
+        m_grabbed = true;
         gtk_grab_add( m_widget );
-        gtk_main();
+        wxGUIEventLoop().Run();
         gtk_grab_remove( m_widget );
     }
 }
@@ -967,8 +1258,190 @@ void wxTopLevelWindowGTK::RemoveGrab()
     if (m_grabbed)
     {
         gtk_main_quit();
-        m_grabbed = FALSE;
+        m_grabbed = false;
+    }
+}
+
+
+// helper
+static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
+{
+    if (window)
+    {
+        if (region.IsEmpty())
+        {
+            gdk_window_shape_combine_mask(window, NULL, 0, 0);
+        }
+        else
+        {
+            gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
+            return true;
+        }
+    }
+    return false;
+}
+
+
+bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
+{
+    wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
+                 wxT("Shaped windows must be created with the wxFRAME_SHAPED style."));
+
+    if ( GTK_WIDGET_REALIZED(m_widget) )
+    {
+        if ( m_wxwindow )
+            do_shape_combine_region(m_wxwindow->window, region);
+
+        return do_shape_combine_region(m_widget->window, region);
+    }
+    else // not realized yet
+    {
+        // store the shape to set, it will be really set once we're realized
+        m_shape = region;
+
+        // we don't know if we're going to succeed or fail, be optimistic by
+        // default
+        return true;
+    }
+}
+
+bool wxTopLevelWindowGTK::IsActive()
+{
+    return (this == (wxTopLevelWindowGTK*)g_activeFrame);
+}
+
+void wxTopLevelWindowGTK::RequestUserAttention(int flags)
+{
+    bool new_hint_value = false;
+
+    // FIXME: This is a workaround to focus handling problem
+    // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
+    // hasn't yet been processed, and the internal focus system is not up to date yet.
+    // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
+    // won't have side effects) - MR
+    wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
+
+    if(m_urgency_hint >= 0)
+        g_source_remove(m_urgency_hint);
+
+    m_urgency_hint = -2;
+
+    if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
+    {
+        new_hint_value = true;
+
+        if (flags & wxUSER_ATTENTION_INFO)
+        {
+            m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
+        } else {
+            m_urgency_hint = -1;
+        }
+    }
+
+#if GTK_CHECK_VERSION(2,7,0)
+    if(!gtk_check_version(2,7,0))
+        gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
+    else
+#endif
+        wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
+}
+
+void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
+{
+    // Store which styles were changed
+    long styleChanges = style ^ m_windowStyle;
+
+    // Process wxWindow styles. This also updates the internal variable
+    // Therefore m_windowStyle bits carry now the _new_ style values
+    wxWindow::SetWindowStyleFlag(style);
+
+    // just return for now if widget does not exist yet
+    if (!m_widget)
+        return;
+
+    if ( styleChanges & wxSTAY_ON_TOP )
+    {
+        gtk_window_set_keep_above(GTK_WINDOW(m_widget),
+                                  m_windowStyle & wxSTAY_ON_TOP);
+    }
+
+    if ( styleChanges & wxFRAME_NO_TASKBAR )
+    {
+        gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
+                                         m_windowStyle & wxFRAME_NO_TASKBAR);
+    }
+}
+
+/* Get the X Window between child and the root window.
+   This should usually be the WM managed XID */
+static Window wxGetTopmostWindowX11(Display *dpy, Window child)
+{
+    Window root, parent;
+    Window* children;
+    unsigned int nchildren;
+
+    XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
+    XFree(children);
+
+    while (parent != root) {
+        child = parent;
+        XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
+        XFree(children);
+    }
+
+    return child;
+}
+
+bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
+{
+    if (!m_widget || !m_widget->window)
+        return false;
+
+    Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
+    // We need to get the X Window that has the root window as the immediate parent
+    // and m_widget->window as a child. This should be the X Window that the WM manages and
+    // from which the opacity property is checked from.
+    Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
+
+
+    // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
+    if (alpha == 0xff)
+        XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
+    else
+    {
+        long opacity = alpha * 0x1010101L;
+        XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
+                        XA_CARDINAL, 32, PropModeReplace,
+                        (unsigned char *) &opacity, 1L);
     }
+    XSync(dpy, False);
+    return true;
 }
 
-// vi:sts=4:sw=4:et
+bool wxTopLevelWindowGTK::CanSetTransparent()
+{
+    // allow to override automatic detection as it's far from perfect
+    const wxString SYSOPT_TRANSPARENT = "gtk.tlw.can-set-transparent";
+    if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
+    {
+        return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
+    }
+
+#if GTK_CHECK_VERSION(2,10,0)
+    if (!gtk_check_version(2,10,0))
+    {
+        return (gtk_widget_is_composited (m_widget));
+    }
+    else
+#endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
+    {
+        return false;
+    }
+
+#if 0 // Don't be optimistic here for the sake of wxAUI
+    int opcode, event, error;
+    // Check for the existence of a RGBA visual instead?
+    return XQueryExtension(gdk_x11_get_default_xdisplay (),
+                           "Composite", &opcode, &event, &error);
+#endif
+}