]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk/toplevel.cpp
added wxTextEntry::DoGetValue() to allow returning empty string if the control curren...
[wxWidgets.git] / src / gtk / toplevel.cpp
index 7ad3b37a467c3ce210bd839ebe8ad2998b15f811..5d04f3bcb37fd77dee9624a83076363587addcf1 100644 (file)
 #include <gtk/gtk.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>
 
+#if wxUSE_LIBHILDON
+    #include <hildon-widgets/hildon-program.h>
+    #include <hildon-widgets/hildon-window.h>
+#endif // wxUSE_LIBHILDON
+
 // ----------------------------------------------------------------------------
 // data
 // ----------------------------------------------------------------------------
 
-extern int              g_openDialogs;
-extern wxWindowGTK     *g_delayedFocus;
+// this is incremented while a modal dialog is shown
+int wxOpenModalDialogsCount = 0;
 
 // the frame that is currently active (i.e. its child has focus). It is
 // used to generate wxActivateEvents
-static wxTopLevelWindowGTK *g_activeFrame = (wxTopLevelWindowGTK*) NULL;
-static wxTopLevelWindowGTK *g_lastActiveFrame = (wxTopLevelWindowGTK*) NULL;
+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
@@ -156,7 +161,7 @@ static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
     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->GetEventHandler()->ProcessEvent(event);
+    g_activeFrame->HandleWindowEvent(event);
 
     return FALSE;
 }
@@ -186,7 +191,7 @@ gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
         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->GetEventHandler()->ProcessEvent(event);
+        g_activeFrame->HandleWindowEvent(event);
 
         g_activeFrame = NULL;
     }
@@ -195,25 +200,6 @@ gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
 }
 }
 
-//-----------------------------------------------------------------------------
-
-// Get cached size of WM decorations for given GdkWMDecoration.
-static wxSize& GetDecorSize(int decor)
-{
-    // In testing, only the title bar and GDK_DECOR_BORDER made a difference.
-    // 4 possible combinations of title bar and border
-    static wxSize size[4];
-
-    int index = 0;
-    // title bar
-    if (decor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
-        index = 1;
-    // border
-    if (decor & GDK_DECOR_BORDER)
-        index |= 2;
-    return size[index];
-}
-
 //-----------------------------------------------------------------------------
 // "size_allocate" from m_wxwindow
 //-----------------------------------------------------------------------------
@@ -227,16 +213,18 @@ size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
     {
         win->m_oldClientWidth  = alloc->width;
         win->m_oldClientHeight = alloc->height;
-        wxSize sizeDecor;
-        if (!win->IsFullScreen())
-            sizeDecor = GetDecorSize(win->m_gdkDecor);
-        win->m_width  = win->m_widget->allocation.width  + sizeDecor.x;
-        win->m_height = win->m_widget->allocation.height + sizeDecor.y;
+
+        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(win->GetSize(), win->GetId());
+            wxSizeEvent event(size, win->GetId());
             event.SetEventObject(win);
-            win->GetEventHandler()->ProcessEvent(event);
+            win->HandleWindowEvent(event);
         }
         // else the window is currently unmapped, don't generate size events
     }
@@ -270,7 +258,7 @@ gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
                            wxTopLevelWindowGTK *win )
 {
     if (win->IsEnabled() &&
-        (g_openDialogs == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
+        (wxOpenModalDialogsCount == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
          win->IsGrabbed()))
         win->Close();
 
@@ -278,7 +266,6 @@ gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
 }
 }
 
-
 //-----------------------------------------------------------------------------
 // "configure_event"
 //-----------------------------------------------------------------------------
@@ -299,7 +286,7 @@ gtk_frame_configure_callback( GtkWidget* widget,
     win->m_y = point.y;
     wxMoveEvent mevent(point, win->GetId());
     mevent.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent( mevent );
+    win->HandleWindowEvent( mevent );
 
     return FALSE;
 }
@@ -309,7 +296,7 @@ gtk_frame_configure_callback( GtkWidget* widget,
 // "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" {
@@ -317,26 +304,23 @@ static void
 gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
                              wxTopLevelWindowGTK *win )
 {
-    // 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)
+    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.IsEmpty() )
-    {
-        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
 }
 }
 
@@ -346,33 +330,30 @@ gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
 
 extern "C" {
 static gboolean
-gtk_frame_map_callback( GtkWidget* widget,
+gtk_frame_map_callback( GtkWidget*,
                         GdkEvent * WXUNUSED(event),
                         wxTopLevelWindow *win )
 {
-    // Calculate size of WM decorations.
-    // Done here in case WM does not support the _NET_FRAME_EXTENTS property.
-    if (win->IsDecorCacheable() && !win->IsFullScreen())
+    const bool wasIconized = win->IsIconized();
+    win->SetIconizeState(false);
+    if (wasIconized)
     {
-        GdkRectangle rect;
-        gdk_window_get_frame_extents(widget->window, &rect);
-        int w, h;
-        gdk_drawable_get_size(widget->window, &w, &h);
-        wxSize& decorSize = GetDecorSize(win->m_gdkDecor);
-        const wxSize size = wxSize(rect.width - w, rect.height - h);
-        if (decorSize.x != size.x || decorSize.y != size.y)
-        {
-            // Update window size and frame extents cache
-            win->m_width = rect.width;
-            win->m_height = rect.height;
-            decorSize = size;
-            wxSizeEvent event(win->GetSize(), win->GetId());
-            event.SetEventObject(win);
-            win->GetEventHandler()->ProcessEvent(event);
-        }
+        // 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);
     }
-
-    win->SetIconizeState(false);
     return false;
 }
 }
@@ -392,6 +373,37 @@ gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget),
 }
 }
 
+//-----------------------------------------------------------------------------
+
+bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
+{
+    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;
+}
+
 //-----------------------------------------------------------------------------
 // "property_notify_event" from m_widget
 //-----------------------------------------------------------------------------
@@ -402,63 +414,36 @@ static gboolean property_notify_event(
 {
     // 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 &&
-        win->IsDecorCacheable() && !win->IsFullScreen())
+    if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
     {
-        Atom xproperty = gdk_x11_atom_to_xatom_for_display(
-                            gdk_drawable_get_display(event->window), property);
-        Atom type;
-        int format;
-        gulong nitems, bytes_after;
-        long* data = NULL;
-        Status status = XGetWindowProperty(
-            gdk_x11_drawable_get_xdisplay(event->window),
-            gdk_x11_drawable_get_xid(event->window),
-            xproperty,
-            0, 4, false, XA_CARDINAL,
-            &type, &format, &nitems, &bytes_after, (guchar**)&data);
-        if (status == Success && data && nitems == 4)
+        int left, right, top, bottom;
+        if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
         {
-            wxSize& decorSize = GetDecorSize(win->m_gdkDecor);
-            const wxSize size =
-                wxSize(int(data[0] + data[1]), int(data[2] + data[3]));
-            if (decorSize.x != size.x || decorSize.y != size.y)
-            {
-                // Update window size and frame extents cache
-                win->m_width  += size.x - decorSize.x;
-                win->m_height += size.y - decorSize.y;
-                if (win->m_width  < 0) win->m_width  = 0;
-                if (win->m_height < 0) win->m_height = 0;
-                decorSize = size;
-                wxSizeEvent event(win->GetSize(), win->GetId());
-                event.SetEventObject(win);
-                win->GetEventHandler()->ProcessEvent(event);
-            }
+            const wxSize decorSize =
+                wxSize(left + right, top + bottom);
+            win->GTKUpdateDecorSize(decorSize);
         }
-        if (data)
-            XFree(data);
     }
     return false;
 }
 }
 
-BEGIN_EVENT_TABLE(wxTopLevelWindowGTK, wxTopLevelWindowBase)
-    EVT_SYS_COLOUR_CHANGED(wxTopLevelWindowGTK::OnSysColourChanged)
-END_EVENT_TABLE()
-
-
 // ----------------------------------------------------------------------------
 // wxTopLevelWindowGTK creation
 // ----------------------------------------------------------------------------
 
 void wxTopLevelWindowGTK::Init()
 {
-    m_mainWidget = (GtkWidget*) NULL;
+    m_mainWidget = NULL;
     m_isIconized = false;
     m_fsIsShowing = false;
     m_themeEnabled = true;
-    m_gdkDecor = m_gdkFunc = 0;
+    m_gdkDecor =
+    m_gdkFunc = 0;
     m_grabbed = false;
+    m_deferShow = true;
+    m_deferShowAllowed = true;
+    m_updateDecorSize = true;
 
     m_urgency_hint = -2;
 }
@@ -492,6 +477,14 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent,
     //     e.g. in wxTaskBarIconAreaGTK
     if (m_widget == NULL)
     {
+#if wxUSE_LIBHILDON
+        // 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
         m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
         {
@@ -518,6 +511,9 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent,
                 style |= wxFRAME_NO_TASKBAR;
             }
         }
+#endif // wxUSE_LIBHILDON/!wxUSE_LIBHILDON
+
+        g_object_ref(m_widget);
     }
 
     wxWindow *topParent = wxGetTopLevelParent(m_parent);
@@ -557,7 +553,7 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent,
     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 
     // m_wxwindow is the client area
-    m_wxwindow = wxPizza::New();
+    m_wxwindow = wxPizza::New(0,this);
     gtk_widget_show( m_wxwindow );
     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 
@@ -602,49 +598,50 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent,
     g_signal_connect(m_widget, "property_notify_event",
         G_CALLBACK(property_notify_event), this);
 
-    // decorations
-    if ((style & wxSIMPLE_BORDER) || (style & wxNO_BORDER))
+    // 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 = GDK_DECOR_BORDER;
-        m_gdkFunc = GDK_FUNC_MOVE;
 
-        // 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 & wxCLOSE_BOX) != 0)
-        {
-            m_gdkFunc |= GDK_FUNC_CLOSE;
-        }
-        if ((style & wxSYSTEM_MENU) != 0)
-        {
+
+        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;
         }
     }
 
-    // m_gdkDecor needs to be set before calling GTKDoGetSize
+    m_decorSize = GetCachedDecorSize();
     int w, h;
     GTKDoGetSize(&w, &h);
     gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
@@ -654,13 +651,22 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 
 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 {
+#if wxUSE_LIBHILDON
+    // 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
+
     if (m_grabbed)
     {
         wxFAIL_MSG(_T("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))
@@ -775,14 +781,79 @@ bool wxTopLevelWindowGTK::Show( bool show )
 {
     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 
-    if (show && !IsShown())
+    bool deferShow = show && !m_isShown && m_deferShow && m_deferShowAllowed;
+    if (deferShow)
+    {
+        deferShow = false;
+        if (!GTK_WIDGET_REALIZED(m_widget) &&
+            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))
+        {
+            if (gdk_x11_screen_supports_net_wm_hint(
+                gtk_widget_get_screen(m_widget),
+                gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false)))
+            {
+                deferShow = true;
+            }
+            else
+            {
+                // 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 = false;
+            }
+        }
+        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);
-        GetEventHandler()->ProcessEvent(event);
+        HandleWindowEvent(event);
     }
 
     bool change = wxTopLevelWindowBase::Show(show);
@@ -815,12 +886,9 @@ void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXU
 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 {
     wxSize size(m_width, m_height);
-    if (!IsFullScreen())
-    {
-        size -= GetDecorSize(m_gdkDecor);
-        if (size.x < 0) size.x = 0;
-        if (size.y < 0) size.y = 0;
-    }
+    size -= m_decorSize;
+    if (size.x < 0) size.x = 0;
+    if (size.y < 0) size.y = 0;
     if (width)  *width  = size.x;
     if (height) *height = size.y;
 }
@@ -829,9 +897,7 @@ void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int si
 {
     wxCHECK_RET( m_widget, wxT("invalid frame") );
 
-    // this shouldn't happen: wxFrame, wxMDIParentFrame and wxMDIChildFrame have m_wxwindow
-    wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid frame") );
-
+    m_deferShowAllowed = true;
 
     // deal with the position first
     int old_x = m_x;
@@ -871,10 +937,18 @@ void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int si
         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
         wxSizeEvent event(GetSize(), GetId());
         event.SetEventObject(this);
-        GetEventHandler()->ProcessEvent(event);
+        HandleWindowEvent(event);
     }
 }
 
+void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
+{
+    // Since client size is being explicitly set, don't change it later
+    m_deferShowAllowed = false;
+
+    wxTopLevelWindowBase::DoSetClientSize(width, height);
+}
+
 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
 {
     wxASSERT_MSG(m_widget, wxT("invalid frame"));
@@ -904,24 +978,23 @@ void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
     const wxSize maxSize = GetMaxSize();
     GdkGeometry hints;
     int hints_mask = 0;
-    const wxSize sizeDecor = GetDecorSize(m_gdkDecor);
     if (minSize.x > 0 || minSize.y > 0)
     {
         hints_mask |= GDK_HINT_MIN_SIZE;
-        hints.min_width = minSize.x - sizeDecor.x;
+        hints.min_width = minSize.x - m_decorSize.x;
         if (hints.min_width < 0)
             hints.min_width = 0;
-        hints.min_height = minSize.y - sizeDecor.y;
+        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 - sizeDecor.x;
+        hints.max_width = maxSize.x - m_decorSize.x;
         if (hints.max_width < 0)
             hints.max_width = INT_MAX;
-        hints.max_height = maxSize.y - sizeDecor.y;
+        hints.max_height = maxSize.y - m_decorSize.y;
         if (hints.max_height < 0)
             hints.max_height = INT_MAX;
     }
@@ -935,29 +1008,75 @@ void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
         (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
 }
 
-bool wxTopLevelWindowGTK::IsDecorCacheable() const
+void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
 {
-    return true;
-}
-
-void wxTopLevelWindowGTK::OnInternalIdle()
-{
-    // set the focus if not done yet and if we can already do it
-    if ( GTK_WIDGET_REALIZED(m_wxwindow) )
+    if (!IsMaximized() && !IsFullScreen())
+        GetCachedDecorSize() = decorSize;
+    if (m_updateDecorSize && m_decorSize != decorSize)
     {
-        if ( g_delayedFocus &&
-             wxGetTopLevelParent((wxWindow*)g_delayedFocus) == this )
+        const wxSize diff = decorSize - m_decorSize;
+        m_decorSize = decorSize;
+        bool resized = false;
+        if (m_deferShow)
         {
-            wxLogTrace(_T("focus"),
-                       _T("Setting focus from wxTLW::OnIdle() to %s(%s)"),
-                       g_delayedFocus->GetClassInfo()->GetClassName(),
-                       g_delayedFocus->GetLabel().c_str());
-
-            g_delayedFocus->SetFocus();
-            g_delayedFocus = NULL;
+            // 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);
         }
     }
+    if (m_deferShow)
+    {
+        // 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);
+    }
+}
+
+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()
+{
     wxWindow::OnInternalIdle();
 
     // Synthetize activate events.
@@ -997,16 +1116,17 @@ void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
 
     wxTopLevelWindowBase::SetIcons( icons );
 
-    GList *list = NULL;
-
-    const size_t numIcons = icons.GetIconCount();
-    for ( size_t i = 0; i < numIcons; i++ )
+    // 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))
     {
-        list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
+        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);
     }
-
-    gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
-    g_list_free(list);
 }
 
 // ----------------------------------------------------------------------------
@@ -1102,13 +1222,22 @@ bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 
-    GdkWindow *window = NULL;
-    if (m_wxwindow)
+    if ( GTK_WIDGET_REALIZED(m_widget) )
     {
-        do_shape_combine_region(m_wxwindow->window, region);
+        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;
     }
-    window = m_widget->window;
-    return do_shape_combine_region(window, region);
 }
 
 bool wxTopLevelWindowGTK::IsActive()
@@ -1121,10 +1250,11 @@ 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.
-    // wxYieldIfNeeded ensures the processing of it, but can have unwanted side effects - MR
-    ::wxYieldIfNeeded();
+    // 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);
@@ -1250,16 +1380,3 @@ bool wxTopLevelWindowGTK::CanSetTransparent()
                            "Composite", &opcode, &event, &error);
 #endif
 }
-
-void wxTopLevelWindowGTK::OnSysColourChanged(wxSysColourChangedEvent& event)
-{
-    // We don't know the order in which top-level windows will
-    // be notified, so we need to clear the system objects
-    // for each top-level window.
-    extern void wxClearGtkSystemObjects();
-    wxClearGtkSystemObjects();
-
-    // wxWindowBase::OnSysColourChanged will propagate event
-    // to children
-    event.Skip();
-}