X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/15b24b148ad8ceadc501893ce34df3867f519a41..4f55a07f9f4c6ba6905aaa8e584e6fb14771d278:/src/gtk/dialog.cpp

diff --git a/src/gtk/dialog.cpp b/src/gtk/dialog.cpp
index fc6e7041ff..a4532f5d19 100644
--- a/src/gtk/dialog.cpp
+++ b/src/gtk/dialog.cpp
@@ -14,9 +14,12 @@
 #include "wx/dialog.h"
 #include "wx/frame.h"
 #include "wx/app.h"
+#include "wx/cursor.h"
+
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
 
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
 #include "wx/gtk/win_gtk.h"
 
 //-----------------------------------------------------------------------------
@@ -25,6 +28,7 @@
 
 extern void wxapp_install_idle_handler();
 extern bool g_isIdle;
+extern int g_openDialogs;
 
 //-----------------------------------------------------------------------------
 // data
@@ -32,22 +36,31 @@ extern bool g_isIdle;
 
 extern wxList wxPendingDelete;
 
+//-----------------------------------------------------------------------------
+// "focus" from m_window
+//-----------------------------------------------------------------------------
+
+static gint gtk_dialog_focus_callback( GtkWidget *widget, GtkDirectionType WXUNUSED(d), wxWindow *WXUNUSED(win) )
+{
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    // This disables GTK's tab traversal
+    gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus" );
+    return TRUE;
+}
+
 //-----------------------------------------------------------------------------
 // "delete_event"
 //-----------------------------------------------------------------------------
 
 bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxDialog *win )
 {
-    if (g_isIdle) wxapp_install_idle_handler();
-
-/*
-    printf( "OnDelete from " );
-    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
-        printf( win->GetClassInfo()->GetClassName() );
-    printf( ".\n" );
-*/
+    if (g_isIdle)
+        wxapp_install_idle_handler();
 
-    win->Close();
+    if (win->IsEnabled())
+        win->Close();
 
     return TRUE;
 }
@@ -58,37 +71,45 @@ bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED
 
 static void gtk_dialog_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxDialog *win )
 {
-    if (g_isIdle) wxapp_install_idle_handler();
+    if (g_isIdle)
+        wxapp_install_idle_handler();
 
-    if (!win->HasVMT()) return;
-
-/*
-    printf( "OnDialogResize from " );
-    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
-        printf( win->GetClassInfo()->GetClassName() );
-    printf( ".\n" );
-*/
+    if (!win->m_hasVMT) return;
 
-   if ((win->m_width != alloc->width) || (win->m_height != alloc->height))
-   {
-       win->m_sizeSet = FALSE;
-       win->m_width = alloc->width;
-       win->m_height = alloc->height;
-   }
+    if ((win->m_width != alloc->width) || (win->m_height != alloc->height))
+    {
+        win->m_width = alloc->width;
+        win->m_height = alloc->height;
+        win->GtkUpdateSize();
+    }
 }
 
 //-----------------------------------------------------------------------------
 // "configure_event"
 //-----------------------------------------------------------------------------
 
-static gint gtk_dialog_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *event, wxDialog *win )
+static gint
+#if (GTK_MINOR_VERSION > 0)
+gtk_dialog_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxDialog *win )
+#else
+gtk_dialog_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *event, wxDialog *win )
+#endif
 {
-    if (g_isIdle) wxapp_install_idle_handler();
+    if (g_isIdle)
+        wxapp_install_idle_handler();
 
-    if (!win->HasVMT()) return FALSE;
+    if (!win->m_hasVMT) return FALSE;
 
+#if (GTK_MINOR_VERSION > 0)
+    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;
+#else
     win->m_x = event->x;
     win->m_y = event->y;
+#endif
 
     wxMoveEvent mevent( wxPoint(win->m_x,win->m_y), win->GetId() );
     mevent.SetEventObject( win );
@@ -101,70 +122,96 @@ static gint gtk_dialog_configure_callback( GtkWidget *WXUNUSED(widget), GdkEvent
 // "realize" from m_widget
 //-----------------------------------------------------------------------------
 
-/* we cannot MWM hints and icons before the widget has been realized, 
+/* we cannot MWM hints and icons before the widget has been realized,
    so we do this directly after realization */
 
-static gint 
-gtk_dialog_realized_callback( GtkWidget *widget, wxDialog *win )
+static gint
+gtk_dialog_realized_callback( GtkWidget * WXUNUSED(widget), wxDialog *win )
 {
-    if (g_isIdle) wxapp_install_idle_handler();
+    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. */
+    long decor = (long) GDK_DECOR_BORDER;
+    long func = (long) GDK_FUNC_MOVE ;
+
+    /* Some WM don't display any border around the frame contents if
+       used with these hints, so we add a resize border around it,
+       without automatically allowinng it to be resized though.
+
+       This avoids the problem, but looks odd. What shall we do?
+    */
+    decor |= GDK_DECOR_RESIZEH;
+
+    if ((win->GetWindowStyle() & wxCAPTION) != 0)
+        decor |= GDK_DECOR_TITLE;
+    if ((win->GetWindowStyle() & wxSYSTEM_MENU) != 0)
+    {
+       decor |= GDK_DECOR_MENU;
+       func |= GDK_FUNC_CLOSE;
+    }
+    if ((win->GetWindowStyle() & wxMINIMIZE_BOX) != 0)
+    {
+        func |= GDK_FUNC_MINIMIZE;
+        decor |= GDK_DECOR_MINIMIZE;
+    }
+    if ((win->GetWindowStyle() & wxMAXIMIZE_BOX) != 0)
+    {
+        decor |= GDK_DECOR_MAXIMIZE;
+        func |= GDK_FUNC_MAXIMIZE;
+    }
+    if ((win->GetWindowStyle() & wxRESIZE_BORDER) != 0)
+    {
+       func |= GDK_FUNC_RESIZE;
+       decor |= GDK_DECOR_RESIZEH;
+    }
+    gdk_window_set_decorations( win->m_widget->window, (GdkWMDecoration)decor);
+    gdk_window_set_functions( win->m_widget->window, (GdkWMFunction)func);
+
+    /* GTK's shrinking/growing policy */
+    if ((win->GetWindowStyle() & wxRESIZE_BORDER) == 0)
+        gtk_window_set_policy(GTK_WINDOW(win->m_widget), 0, 0, 1);
+    else
+        gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
 
     /* reset the icon */
     if (win->m_icon != wxNullIcon)
     {
         wxIcon icon( win->m_icon );
         win->m_icon = wxNullIcon;
-	win->SetIcon( icon );
+        win->SetIcon( icon );
     }
-    
+
     return FALSE;
 }
-    
+
 //-----------------------------------------------------------------------------
-// "map" from m_widget
+// InsertChild for wxDialog
 //-----------------------------------------------------------------------------
 
-static gint 
-gtk_dialog_map_callback( GtkWidget *widget, wxDialog *win )
+/* Callback for wxFrame. 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 wxInsertChildInDialog( wxDialog* parent, wxWindow* child )
 {
-    /* I haven''t been able to set the position of
-       the dialog before it is shown, so I do it here */
-    gtk_widget_set_uposition( widget, win->m_x, win->m_y );
-    
-    /* all this is for Motif Window Manager "hints" and is supposed to be
-       recognized by other WM as well. not tested. */
-    long decor = (long) GDK_DECOR_ALL;
-    long func = (long) GDK_FUNC_ALL;
-    
-    if ((win->m_windowStyle & wxCAPTION) == 0)
-	decor |= GDK_DECOR_TITLE;
-    if ((win->m_windowStyle & wxSYSTEM_MENU) == 0)
-	decor |= GDK_DECOR_MENU;
-    if ((win->m_windowStyle & wxMINIMIZE_BOX) == 0)
-    {
-	func |= GDK_FUNC_MINIMIZE;
-	decor |= GDK_DECOR_MINIMIZE;
-    }
-    if ((win->m_windowStyle & wxMAXIMIZE_BOX) == 0)
+    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 );
+
+    if (parent->HasFlag(wxTAB_TRAVERSAL))
     {
-	decor |= GDK_DECOR_MAXIMIZE;
-	func |= GDK_FUNC_MAXIMIZE;           
+        /* we now allow a window to get the focus as long as it
+           doesn't have any children. */
+        GTK_WIDGET_UNSET_FLAGS( parent->m_wxwindow, GTK_CAN_FOCUS );
     }
-    if ((win->m_windowStyle & wxRESIZE_BORDER) == 0)
-	func |= GDK_FUNC_RESIZE;
-	
-    gdk_window_set_decorations( win->m_widget->window, (GdkWMDecoration)decor);
-    gdk_window_set_functions( win->m_widget->window, (GdkWMFunction)func);
-      
-    /* GTK's shrinking/growing policy */
-    if ((win->m_windowStyle & wxRESIZE_BORDER) == 0)
-        gtk_window_set_policy(GTK_WINDOW(win->m_widget), 0, 0, 1);
-    else
-        gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
-    
-    return FALSE;
 }
-    
+
 //-----------------------------------------------------------------------------
 // wxDialog
 //-----------------------------------------------------------------------------
@@ -181,8 +228,10 @@ IMPLEMENT_DYNAMIC_CLASS(wxDialog,wxPanel)
 
 void wxDialog::Init()
 {
+    m_returnCode = 0;
     m_sizeSet = FALSE;
     m_modalShowing = FALSE;
+    m_themeEnabled = TRUE;
 }
 
 wxDialog::wxDialog( wxWindow *parent,
@@ -204,17 +253,32 @@ bool wxDialog::Create( wxWindow *parent,
 
     m_needParent = FALSE;
 
-    PreCreation( parent, id, pos, size, style, name );
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
+    {
+        wxFAIL_MSG( wxT("wxDialog creation failed") );
+        return FALSE;
+    }
 
-    m_widget = gtk_window_new( GTK_WINDOW_TOPLEVEL );
-    GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
+    // All dialogs should really have this style
+    m_windowStyle |= wxTAB_TRAVERSAL;
 
-    gtk_widget_set( m_widget, "GtkWindow::allow_shrink", TRUE, NULL);
+    m_insertCallback = (wxInsertChildFunction) wxInsertChildInDialog;
+
+    m_widget = gtk_window_new( GTK_WINDOW_DIALOG );
+
+    if ((m_parent) && (GTK_IS_WINDOW(m_parent->m_widget)))
+        gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) );
+
+    if (!name.IsEmpty())
+        gtk_window_set_wmclass( GTK_WINDOW(m_widget), name.mb_str(), name.mb_str() );
+
+    GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 
     gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
         GTK_SIGNAL_FUNC(gtk_dialog_delete_callback), (gpointer)this );
 
-    m_wxwindow = gtk_myfixed_new();
+    m_wxwindow = gtk_pizza_new();
     gtk_widget_show( m_wxwindow );
     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 
@@ -226,15 +290,14 @@ bool wxDialog::Create( wxWindow *parent,
 
     PostCreation();
 
+    if ((m_x != -1) || (m_y != -1))
+        gtk_widget_set_uposition( m_widget, m_x, m_y );
+    gtk_widget_set_usize( m_widget, m_width, m_height );
+
     /*  we cannot set MWM hints  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_dialog_realized_callback), (gpointer) this );
-
-    /* we set the position of the window after the map event. setting it
-       before has no effect (with KWM) */
-    gtk_signal_connect( GTK_OBJECT(m_widget), "map",
-			GTK_SIGNAL_FUNC(gtk_dialog_map_callback), (gpointer) this );
+                        GTK_SIGNAL_FUNC(gtk_dialog_realized_callback), (gpointer) this );
 
     /* the user resized the frame by dragging etc. */
     gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
@@ -243,19 +306,19 @@ bool wxDialog::Create( wxWindow *parent,
     gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
         GTK_SIGNAL_FUNC(gtk_dialog_configure_callback), (gpointer)this );
 
+    /* disable native tab traversal */
+    gtk_signal_connect( GTK_OBJECT(m_widget), "focus",
+        GTK_SIGNAL_FUNC(gtk_dialog_focus_callback), (gpointer)this );
+
     return TRUE;
 }
 
 wxDialog::~wxDialog()
 {
-    wxTopLevelWindows.DeleteObject( this );
-
-    if (wxTheApp->GetTopWindow() == this)
-    {
-        wxTheApp->SetTopWindow( (wxWindow*) NULL );
-    }
+    CleanUp();
 
-    if (wxTopLevelWindows.Number() == 0)
+    if ((wxTopLevelWindows.Number() == 0) &&
+        (wxTheApp->GetExitOnFrameDelete()))
     {
         wxTheApp->ExitMainLoop();
     }
@@ -264,13 +327,12 @@ wxDialog::~wxDialog()
 void wxDialog::SetTitle( const wxString& title )
 {
     m_title = title;
-    if (m_title.IsNull()) m_title = _T("");
     gtk_window_set_title( GTK_WINDOW(m_widget), m_title.mbc_str() );
 }
 
 wxString wxDialog::GetTitle() const
 {
-    return (wxString&)m_title;
+    return m_title;
 }
 
 void wxDialog::OnApply( wxCommandEvent &WXUNUSED(event) )
@@ -287,13 +349,13 @@ void wxDialog::OnCancel( wxCommandEvent &WXUNUSED(event) )
     else
     {
         SetReturnCode(wxID_CANCEL);
-        this->Show(FALSE);
+        Show(FALSE);
     }
 }
 
 void wxDialog::OnOK( wxCommandEvent &WXUNUSED(event) )
 {
-    if ( Validate() && TransferDataFromWindow())
+    if (Validate() && TransferDataFromWindow())
     {
         if (IsModal())
         {
@@ -302,7 +364,7 @@ void wxDialog::OnOK( wxCommandEvent &WXUNUSED(event) )
         else
         {
             SetReturnCode(wxID_OK);
-            this->Show(FALSE);
+            Show(FALSE);
         }
     }
 }
@@ -312,7 +374,7 @@ void wxDialog::OnPaint( wxPaintEvent& WXUNUSED(event) )
     // yes
 }
 
-void wxDialog::OnCloseWindow(wxCloseEvent& event)
+void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 {
     // We'll send a Cancel message by default,
     // which may close the dialog.
@@ -343,20 +405,42 @@ void wxDialog::OnCloseWindow(wxCloseEvent& event)
 
 bool wxDialog::Destroy()
 {
-    if (!wxPendingDelete.Member(this)) wxPendingDelete.Append(this);
+    // schedule the dialog for the deletion
+    if ( !wxPendingDelete.Member(this) )
+    {
+        wxPendingDelete.Append(this);
+    }
+
+    // don't leave a dangling pointer as the app top window, we can be deleted
+    // any moment at all now!
+    CleanUp();
 
     return TRUE;
 }
 
+void wxDialog::CleanUp()
+{
+    m_isBeingDeleted = TRUE;
+
+    if ( wxTheApp->GetTopWindow() == this )
+    {
+        wxTheApp->SetTopWindow( (wxWindow*) NULL );
+    }
+
+    wxTopLevelWindows.DeleteObject( this );
+}
+
 void wxDialog::OnSize( wxSizeEvent &WXUNUSED(event) )
 {
-    wxASSERT_MSG( (m_widget != NULL), _T("invalid dialog") );
+    wxASSERT_MSG( (m_widget != NULL), wxT("invalid dialog") );
 
+#if wxUSE_CONSTRAINTS
     if (GetAutoLayout())
     {
         Layout();
     }
     else
+#endif // wxUSE_CONSTRAINTS
     {
         /* no child: go out ! */
         if (!GetChildren().First()) return;
@@ -381,20 +465,26 @@ void wxDialog::OnSize( wxSizeEvent &WXUNUSED(event) )
     }
 }
 
+void wxDialog::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
+{
+    wxFAIL_MSG( wxT("DoMoveWindow called for wxDialog") );
+}
+
 void wxDialog::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 {
-    wxASSERT_MSG( (m_widget != NULL), _T("invalid dialog") );
-    wxASSERT_MSG( (m_wxwindow != NULL), _T("invalid dialog") );
+    wxASSERT_MSG( (m_widget != NULL), wxT("invalid dialog") );
+    wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid dialog") );
 
     if (m_resizing) return; /* I don't like recursions */
     m_resizing = TRUE;
 
     int old_x = m_x;
     int old_y = m_y;
+
     int old_width = m_width;
     int old_height = m_height;
 
-    if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
+    if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0)
     {
         if (x != -1) m_x = x;
         if (y != -1) m_y = y;
@@ -409,6 +499,7 @@ void wxDialog::DoSetSize( int x, int y, int width, int height, int sizeFlags )
         m_height = height;
     }
 
+/*
     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
     {
         if (width == -1) m_width = 80;
@@ -418,6 +509,7 @@ void wxDialog::DoSetSize( int x, int y, int width, int height, int sizeFlags )
     {
        if (height == -1) m_height = 26;
     }
+*/
 
     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
@@ -427,17 +519,19 @@ void wxDialog::DoSetSize( int x, int y, int width, int height, int sizeFlags )
     if ((m_x != -1) || (m_y != -1))
     {
         if ((m_x != old_x) || (m_y != old_y))
-	{
-	    /* we set the position here and when showing the dialog
-	       for the first time in idle time */
+        {
+            /* we set the position here and when showing the dialog
+               for the first time in idle time */
             gtk_widget_set_uposition( m_widget, m_x, m_y );
-	}
+        }
     }
 
     if ((m_width != old_width) || (m_height != old_height))
     {
+        gtk_widget_set_usize( m_widget, m_width, m_height );
+
         /* actual resizing is deferred to GtkOnSize in idle time and
-	   when showing the dialog */
+           when showing the dialog */
         m_sizeSet = FALSE;
     }
 
@@ -461,8 +555,19 @@ void wxDialog::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int heigh
     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
 
-    /* we actually set the size of a frame here and no-where else */
-    gtk_widget_set_usize( m_widget, m_width, m_height );
+    /* set size hints */
+    gint flag = 0; // GDK_HINT_POS;
+    if ((m_minWidth != -1) || (m_minHeight != -1)) flag |= GDK_HINT_MIN_SIZE;
+    if ((m_maxWidth != -1) || (m_maxHeight != -1)) flag |= GDK_HINT_MAX_SIZE;
+    GdkGeometry geom;
+    geom.min_width = m_minWidth;
+    geom.min_height = m_minHeight;
+    geom.max_width = m_maxWidth;
+    geom.max_height = m_maxHeight;
+    gtk_window_set_geometry_hints( GTK_WINDOW(m_widget),
+                                   (GtkWidget*) NULL,
+                                   &geom,
+                                   (GdkWindowHints) flag );
 
     m_sizeSet = TRUE;
 
@@ -471,23 +576,12 @@ void wxDialog::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int heigh
     GetEventHandler()->ProcessEvent( event );
 }
 
-void wxDialog::Centre( int direction )
-{
-    wxASSERT_MSG( (m_widget != NULL), _T("invalid dialog") );
-
-    int x = 0;
-    int y = 0;
-
-    if ((direction & wxHORIZONTAL) == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
-    if ((direction & wxVERTICAL) == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
-
-    Move( x, y );
-}
-
 void wxDialog::OnInternalIdle()
 {
     if (!m_sizeSet && GTK_WIDGET_REALIZED(m_wxwindow))
         GtkOnSize( m_x, m_y, m_width, m_height );
+
+    wxWindow::OnInternalIdle();
 }
 
 bool wxDialog::Show( bool show )
@@ -507,21 +601,11 @@ bool wxDialog::Show( bool show )
         GtkOnSize( m_x, m_y, m_width, m_height );
     }
 
-    if (show != m_isShown)
-    {
-        if (show)
-	{
-	    gtk_widget_show( m_widget );
-	}
-        else
-            gtk_widget_hide( m_widget );
-	    
-        m_isShown = show;
-    }
+    bool ret = wxWindow::Show( show );
 
     if (show) InitDialog();
 
-    return TRUE;
+    return ret;
 }
 
 bool wxDialog::IsModal() const
@@ -537,25 +621,43 @@ void wxDialog::SetModal( bool WXUNUSED(flag) )
   else
     if (m_windowStyle & wxDIALOG_MODAL) m_windowStyle -= wxDIALOG_MODAL;
 */
-    wxFAIL_MSG( _T("wxDialog:SetModal obsolete now") );
+    wxFAIL_MSG( wxT("wxDialog:SetModal obsolete now") );
 }
 
 int wxDialog::ShowModal()
 {
     if (IsModal())
     {
-       wxFAIL_MSG( _T("wxDialog:ShowModal called twice") );
+       wxFAIL_MSG( wxT("wxDialog:ShowModal called twice") );
        return GetReturnCode();
     }
 
+    // use the apps top level window as parent if none given unless explicitly
+    // forbidden
+    if ( !GetParent() && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
+    {
+        wxWindow *parent = wxTheApp->GetTopWindow();
+        if ( parent && parent != this )
+        {
+            m_parent = parent;
+            gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(parent->m_widget) );
+        }
+    }
+
+    wxBusyCursorSuspender cs; // temporarily suppress the busy cursor
+
     Show( TRUE );
 
     m_modalShowing = TRUE;
 
+    g_openDialogs++;
+
     gtk_grab_add( m_widget );
     gtk_main();
     gtk_grab_remove( m_widget );
 
+    g_openDialogs--;
+
     return GetReturnCode();
 }
 
@@ -565,7 +667,7 @@ void wxDialog::EndModal( int retCode )
 
     if (!IsModal())
     {
-        wxFAIL_MSG( _T("wxDialog:EndModal called twice") );
+        wxFAIL_MSG( wxT("wxDialog:EndModal called twice") );
         return;
     }
 
@@ -586,6 +688,8 @@ void wxDialog::SetIcon( const wxIcon &icon )
     m_icon = icon;
     if (!icon.Ok()) return;
 
+    if (!m_widget->window) return;
+
     wxMask *mask = icon.GetMask();
     GdkBitmap *bm = (GdkBitmap *) NULL;
     if (mask) bm = mask->GetBitmap();