X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bc55104d9ab0b0b835644f17a152b4fbbfa8c7b9..24bcaec36746abeeb9e2023d03e3ab4289006fc3:/src/x11/toplevel.cpp

diff --git a/src/x11/toplevel.cpp b/src/x11/toplevel.cpp
index 645a179f70..56ffc9d7d4 100644
--- a/src/x11/toplevel.cpp
+++ b/src/x11/toplevel.cpp
@@ -62,7 +62,7 @@ void wxTopLevelWindowX11::Init()
     m_fsIsMaximized = FALSE;
     m_fsIsShowing = FALSE;
     
-    m_focusWidget = NULL;
+    m_needResizeInIdle = FALSE;
 }
 
 bool wxTopLevelWindowX11::Create(wxWindow *parent,
@@ -118,38 +118,48 @@ bool wxTopLevelWindowX11::Create(wxWindow *parent,
     XSizeHints size_hints;
     
     long xattributes_mask =
-        CWOverrideRedirect |
         CWBorderPixel | CWBackPixel;
 
     xattributes.background_pixel = m_backgroundColour.GetPixel();
     xattributes.border_pixel = BlackPixel( xdisplay, xscreen );
 
-    // TODO: if we want no border, caption etc.,
-    // I think we set this to True to remove decorations
-    // No. RR.
-    xattributes.override_redirect = False;
-#endif
+    if (HasFlag( wxNO_BORDER ))
+    {
+        xattributes_mask |= CWOverrideRedirect;
+        xattributes.override_redirect = True;
+    }
     
-#if wxUSE_NANOX
+    if (HasFlag( wxNO_FULL_REPAINT_ON_RESIZE ))
+    {
+        xattributes_mask |= CWBitGravity;
+        xattributes.bit_gravity = StaticGravity;
+    }
+    
+    xattributes_mask |= CWEventMask;
+    xattributes.event_mask = 
+        ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
+        ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask |
+        KeymapStateMask | FocusChangeMask | ColormapChangeMask | StructureNotifyMask |
+        PropertyChangeMask;
+        
+    Window xwindow = XCreateWindow( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y, 
+                                    0, DefaultDepth(xdisplay,xscreen), InputOutput, xvisual, xattributes_mask, &xattributes );
+#else
     long backColor, foreColor;
     backColor = GR_RGB(m_backgroundColour.Red(), m_backgroundColour.Green(), m_backgroundColour.Blue());
     foreColor = GR_RGB(m_foregroundColour.Red(), m_foregroundColour.Green(), m_foregroundColour.Blue());
     
     Window xwindow = XCreateWindowWithColor( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y, 
                                     0, 0, InputOutput, xvisual, backColor, foreColor);
-#else
-    Window xwindow = XCreateWindow( xdisplay, xparent, pos2.x, pos2.y, size2.x, size2.y, 
-                                    0, DefaultDepth(xdisplay,xscreen), InputOutput, xvisual, xattributes_mask, &xattributes );
 #endif
-    m_mainWidget = (WXWindow) xwindow;
 
-    int extraFlags = 0;
-#if wxUSE_NANOX
-    extraFlags |= GR_EVENT_MASK_CLOSE_REQ;
-#endif
+    m_mainWindow = (WXWindow) xwindow;
+    m_clientWindow = (WXWindow) xwindow;
+    wxAddWindowToTable( xwindow, (wxWindow*) this );
 
+#if wxUSE_NANOX
     XSelectInput( xdisplay, xwindow,
-                  extraFlags |
+                  GR_EVENT_MASK_CLOSE_REQ |
                   ExposureMask |
                   KeyPressMask |
                   KeyReleaseMask |
@@ -163,23 +173,29 @@ bool wxTopLevelWindowX11::Create(wxWindow *parent,
                   FocusChangeMask |
                   ColormapChangeMask |
                   StructureNotifyMask |
-                  ConfigureNotify |
                   PropertyChangeMask
                   );
-    
-    wxAddWindowToTable( xwindow, (wxWindow*) this );
+#endif
 
     // Set background to None which will prevent X11 from clearing the
     // background completely.
     XSetWindowBackgroundPixmap( xdisplay, xwindow, None );
 
 #if !wxUSE_NANOX
-    if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
+    if (HasFlag( wxSTAY_ON_TOP ))
     {
-        if (GetParent() && GetParent()->GetMainWindow())
-        {
-             Window xparentwindow = (Window) GetParent()->GetMainWindow();
-             XSetTransientForHint( xdisplay, xwindow, xparentwindow );
+        Window xroot = RootWindow( xdisplay, xscreen );
+        XSetTransientForHint( xdisplay, xwindow, xroot );
+    }
+    else
+    {
+       if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
+       {
+            if (GetParent() && GetParent()->GetMainWindow())
+            {
+                Window xparentwindow = (Window) GetParent()->GetMainWindow();
+                XSetTransientForHint( xdisplay, xwindow, xparentwindow );
+            }
         }
     }
 
@@ -191,7 +207,12 @@ bool wxTopLevelWindowX11::Create(wxWindow *parent,
     XSetWMNormalHints( xdisplay, xwindow, &size_hints);
     
     XWMHints wm_hints;
-    wm_hints.flags = InputHint | StateHint /* | WindowGroupHint */;
+    wm_hints.flags = InputHint | StateHint;
+    if (GetParent())
+    {  
+        wm_hints.flags |= WindowGroupHint;
+        wm_hints.window_group = (Window) GetParent()->GetMainWindow();
+    }
     wm_hints.input = True;
     wm_hints.initial_state = NormalState;
     XSetWMHints( xdisplay, xwindow, &wm_hints);
@@ -200,6 +221,24 @@ bool wxTopLevelWindowX11::Create(wxWindow *parent,
     wm_protocols[0] = XInternAtom( xdisplay, "WM_DELETE_WINDOW", False );
     wm_protocols[1] = XInternAtom( xdisplay, "WM_TAKE_FOCUS", False );
     XSetWMProtocols( xdisplay, xwindow, wm_protocols, 2);
+
+#if 0 // TODO
+    // You will need a compliant window manager for this to work
+    // (e.g. sawfish/enlightenment/kde/icewm/windowmaker)
+    if (style & wxSTAY_ON_TOP)
+    {
+        CARD32 data = 4; // or should this be 6? According to http://developer.gnome.org/doc/standards/wm/c44.html
+        XChangeProperty (xdisplay,
+                    xwindow,
+                    XInternAtom (xdisplay, "_WIN_LAYER", False),
+                    XA_CARDINAL,
+                    32,
+                    PropModeReplace,
+                    (unsigned char *)&data,
+                    1);
+    }
+#endif
+
 #endif
     
     wxSetWMDecorations( xwindow, style);
@@ -226,13 +265,57 @@ wxTopLevelWindowX11::~wxTopLevelWindowX11()
     }
 }
 
+void wxTopLevelWindowX11::OnInternalIdle()
+{
+    wxWindow::OnInternalIdle();
+    
+    if (m_needResizeInIdle)
+    {
+        wxSizeEvent event( GetClientSize(), GetId() );
+        event.SetEventObject( this );
+        GetEventHandler()->ProcessEvent( event );
+        
+        m_needResizeInIdle = FALSE;
+    }
+}
+
 // ----------------------------------------------------------------------------
 // wxTopLevelWindowX11 showing
 // ----------------------------------------------------------------------------
 
 bool wxTopLevelWindowX11::Show(bool show)
 {
-    return wxWindowX11::Show(show);
+    XSync( wxGlobalDisplay(), False );
+    
+    // Nano-X has to force a size event,
+    // else there's no initial size.
+#if wxUSE_NANOX
+    if (show)
+#else
+    if (show && m_needResizeInIdle)
+#endif
+    {
+        wxSizeEvent event(GetSize(), GetId());
+        event.SetEventObject(this);
+        GetEventHandler()->ProcessEvent(event);
+        
+        m_needResizeInIdle = FALSE;
+    }
+    if (show)
+    {
+        // This does the layout _before_ the
+        // window is shown, else the items are
+        // drawn first at the wrong positions,
+        // then at the correct positions.
+        if (GetAutoLayout())
+        {
+            Layout();
+        }
+    }
+    wxYield();
+
+    bool ret = wxWindowX11::Show(show);
+    return ret;
 }
 
 // ----------------------------------------------------------------------------
@@ -365,11 +448,11 @@ wxString wxTopLevelWindowX11::GetTitle() const
 }
 
 #ifndef MWM_DECOR_BORDER
-/* bit definitions for MwmHints.flags */
-#define MWM_HINTS_FUNCTIONS (1L << 0)
-#define MWM_HINTS_DECORATIONS (1L << 1)
-#define MWM_HINTS_INPUT_MODE (1L << 2)
-#define MWM_HINTS_STATUS (1L << 3)
+
+#define MWM_HINTS_FUNCTIONS     (1L << 0)
+#define MWM_HINTS_DECORATIONS   (1L << 1)
+#define MWM_HINTS_INPUT_MODE    (1L << 2)
+#define MWM_HINTS_STATUS        (1L << 3)
 
 #define MWM_DECOR_ALL           (1L << 0)
 #define MWM_DECOR_BORDER        (1L << 1)
@@ -378,6 +461,22 @@ wxString wxTopLevelWindowX11::GetTitle() const
 #define MWM_DECOR_MENU          (1L << 4)
 #define MWM_DECOR_MINIMIZE      (1L << 5)
 #define MWM_DECOR_MAXIMIZE      (1L << 6)
+
+#define MWM_FUNC_ALL            (1L << 0)
+#define MWM_FUNC_RESIZE         (1L << 1)
+#define MWM_FUNC_MOVE           (1L << 2)
+#define MWM_FUNC_MINIMIZE       (1L << 3)
+#define MWM_FUNC_MAXIMIZE       (1L << 4)
+#define MWM_FUNC_CLOSE          (1L << 5)
+
+#define MWM_INPUT_MODELESS 0
+#define MWM_INPUT_PRIMARY_APPLICATION_MODAL 1
+#define MWM_INPUT_SYSTEM_MODAL 2
+#define MWM_INPUT_FULL_APPLICATION_MODAL 3
+#define MWM_INPUT_APPLICATION_MODAL MWM_INPUT_PRIMARY_APPLICATION_MODAL
+
+#define MWM_TEAROFF_WINDOW	(1L<<0)
+
 #endif
 
 struct MwmHints {
@@ -456,56 +555,51 @@ bool wxSetWMDecorations(Window w, long style)
     GrSetWMProperties(w, & wmProp);
     
 #else
-    if (!wxMWMIsRunning(w))
-        return FALSE;
 
     Atom mwm_wm_hints = XInternAtom(wxGlobalDisplay(),"_MOTIF_WM_HINTS", False);
+    if (mwm_wm_hints == 0)
+       return FALSE;
+    
     MwmHints hints;
-    hints.flags = 0;
+    hints.flags = MWM_HINTS_DECORATIONS | MWM_HINTS_FUNCTIONS;
     hints.decorations = 0;
-
-    if (style & wxRESIZE_BORDER)
-    {
-        // wxLogDebug("MWM_DECOR_RESIZEH");
-        hints.flags |= MWM_HINTS_DECORATIONS;
-        hints.decorations |= MWM_DECOR_RESIZEH;
-    }
-
-    if (style & wxSYSTEM_MENU)
-    {
-        // wxLogDebug("MWM_DECOR_MENU");
-        hints.flags |= MWM_HINTS_DECORATIONS;
-        hints.decorations |= MWM_DECOR_MENU;
-    }
-
-    if ((style & wxCAPTION) ||
-        (style & wxTINY_CAPTION_HORIZ) ||
-        (style & wxTINY_CAPTION_VERT))
-    {
-        // wxLogDebug("MWM_DECOR_TITLE");
-        hints.flags |= MWM_HINTS_DECORATIONS;
-        hints.decorations |= MWM_DECOR_TITLE;
-    }
-
-    if ((style & wxTHICK_FRAME) || (style & wxSIMPLE_BORDER) || (style & wxCAPTION))
+    hints.functions = 0;
+    
+    if ((style & wxSIMPLE_BORDER) || (style & wxNO_BORDER))
     {
-        // wxLogDebug("MWM_DECOR_BORDER");
-        hints.flags |= MWM_HINTS_DECORATIONS;
-        hints.decorations |= MWM_DECOR_BORDER;
+        // leave zeros
     }
-
-    if (style & wxMINIMIZE_BOX)
+    else
     {
-        // wxLogDebug("MWM_DECOR_MINIMIZE");
-        hints.flags |= MWM_HINTS_DECORATIONS;
-        hints.decorations |= MWM_DECOR_MINIMIZE;
-    }
+        hints.decorations = MWM_DECOR_BORDER;
+        hints.functions = MWM_FUNC_MOVE;
 
-    if (style & wxMAXIMIZE_BOX)
-    {
-        // wxLogDebug("MWM_DECOR_MAXIMIZE");
-        hints.flags |= MWM_HINTS_DECORATIONS;
-        hints.decorations |= MWM_DECOR_MAXIMIZE;
+        if ((style & wxCAPTION) != 0)
+            hints.decorations |= MWM_DECOR_TITLE;
+            
+        if ((style & wxSYSTEM_MENU) != 0)
+        {
+            hints.functions |= MWM_FUNC_CLOSE;
+            hints.decorations |= MWM_DECOR_MENU;
+        }
+        
+        if ((style & wxMINIMIZE_BOX) != 0)
+        {
+            hints.functions |= MWM_FUNC_MINIMIZE;
+            hints.decorations |= MWM_DECOR_MINIMIZE;
+        }
+        
+        if ((style & wxMAXIMIZE_BOX) != 0)
+        {
+            hints.functions |= MWM_FUNC_MAXIMIZE;
+            hints.decorations |= MWM_DECOR_MAXIMIZE;
+        }
+        
+        if ((style & wxRESIZE_BORDER) != 0)
+        {
+            hints.functions |= MWM_FUNC_RESIZE;
+            hints.decorations |= MWM_DECOR_RESIZEH;
+        }
     }
 
     XChangeProperty(wxGlobalDisplay(),
@@ -518,170 +612,183 @@ bool wxSetWMDecorations(Window w, long style)
     return TRUE;
 }
 
-bool wxMWMIsRunning(Window w)
-{
-#if wxUSE_NANOX
-    return FALSE;
-#else
-    Display *dpy = (Display*)wxGetDisplay();
-    Atom motifWmInfo = XInternAtom(dpy, "_MOTIF_WM_INFO", False);
-
-    unsigned long length, bytesafter;
-    unsigned char value[20];
-    unsigned char *ptr = &value[0];
-    int ret, format;
-    Atom type;
-
-    type = format = length = 0;
-    value[0] = 0;
-
-    ret = XGetWindowProperty(wxGlobalDisplay(), w, motifWmInfo,
-	    0L, 2, False, motifWmInfo, 
-	    &type, &format, &length, &bytesafter, &ptr);
-
-    return (ret == Success);
-#endif
-}
-    
 // For implementation purposes - sometimes decorations make the client area
 // smaller
 wxPoint wxTopLevelWindowX11::GetClientAreaOrigin() const
 {
-    // In fact wxFrame::GetClientAreaOrigin
+    // wxFrame::GetClientAreaOrigin
     // does the required calculation already.
-#if 0
-    if (this->IsKindOf(CLASSINFO(wxFrame)))
-    {
-	wxFrame* frame = (wxFrame*) this;
-	if (frame->GetMenuBar())
-	    return wxPoint(0, frame->GetMenuBar()->GetSize().y);
-    }
-#endif
     return wxPoint(0, 0);
 }
 
 void wxTopLevelWindowX11::DoGetClientSize( int *width, int *height ) const
 {
+    XSync(wxGlobalDisplay(), False);
     wxWindowX11::DoGetClientSize(width, height);
-    // Done by wxTopLevelWindow
-#if 0
-    if (this->IsKindOf(CLASSINFO(wxFrame)))
-    {
-	wxFrame* frame = (wxFrame*) this;
-	if (frame->GetMenuBar())
-	    (*height) -= frame->GetMenuBar()->GetSize().y;
-	if (frame->GetStatusBar())
-	    (*height) -= frame->GetStatusBar()->GetSize().y;
-    }
-#endif
 }
 
 void wxTopLevelWindowX11::DoSetClientSize(int width, int height)
 {
     wxWindowX11::DoSetClientSize(width, height);
 
-#if 0
-    if (!GetMainWindow())
-        return;
+#if !wxUSE_NANOX
+    // Set the top-level window size
+    XSizeHints size_hints;
+    wxSize oldSize = GetSize();
+    wxSize oldClientSize = GetClientSize();
 
-    XWindowChanges windowChanges;
-    int valueMask = 0;
+    size_hints.flags = PSize;
+    size_hints.width = width + (oldSize.x - oldClientSize.x);
+    size_hints.height = height + (oldSize.y - oldClientSize.y);
+    XSetWMNormalHints( wxGlobalDisplay(), (Window) GetMainWindow(),
+                       &size_hints);
 
-    if (width != -1)
-    {
-        windowChanges.width = width ;
-        valueMask |= CWWidth;
-    }
-    if (height != -1)
-    {
-        windowChanges.height = height ;
-        valueMask |= CWHeight;
-    }
-    XConfigureWindow(wxGlobalDisplay(), (Window) GetMainWindow(),
-        valueMask, & windowChanges);
+    // This seems to be necessary or resizes don't get performed
+    XSync(wxGlobalDisplay(), False);
+    XSync(wxGlobalDisplay(), False);
+
+#if 0
+    wxLogDebug("DoSetClientSize: Tried to set size to %d, %d", (int) size_hints.width, (int) size_hints.height);
+
+    XSync(wxGlobalDisplay(), False);
+    wxSize newSize = GetSize();
+    wxLogDebug("New size is %d, %d", (int) newSize.x, (int) newSize.y);
+#endif
 #endif
 }
 
 void wxTopLevelWindowX11::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 {
-    // wxLogDebug( "Setting pos: %d, %d", x, y );
-    wxWindowX11::DoSetSize(x, y, width, height, sizeFlags);
+    //    wxLogDebug("DoSetSize: %s (%ld) %d, %d %dx%d", GetClassInfo()->GetClassName(), GetId(), x, y, width, height);
 
-    wxPoint pt = GetPosition();
-    // wxLogDebug( "After, pos: %d, %d", pt.x, pt.y );
 #if 0
+    wxWindowX11::DoSetSize(x, y, width, height, sizeFlags);
+#endif
     XSync(wxGlobalDisplay(), False);
-    int w, h;
-    GetSize(& w, & h);
-    wxString msg;
-    msg.Printf("Before setting size: %d, %d", w, h);
-    wxLogDebug(msg);
-    if (!GetMainWindow())
-        return;
+    Window window = (Window) m_mainWindow;
+    if (!window)
+        return ;
+
+    Display *display = wxGlobalDisplay();
+    Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
+    Window parent_window = window,
+        next_parent   = window;
+
+    // search for the parent that is child of ROOT, because the WM may
+    // reparent twice and notify only the next parent (like FVWM)
+    while (next_parent != root) {
+        Window *theChildren;
+#if wxUSE_NANOX
+        GR_COUNT n;
+#else
+        unsigned int n;
+#endif
+        parent_window = next_parent;
+        XQueryTree(display, parent_window, &root,
+            &next_parent, &theChildren, &n);
+        XFree(theChildren); // not needed
+    }
 
     XWindowChanges windowChanges;
-    int valueMask = 0;
+    windowChanges.x = x;
+    windowChanges.y = y;
+    windowChanges.width = width;
+    windowChanges.height = height;
+    windowChanges.stack_mode = 0;
+    int valueMask = CWX | CWY | CWWidth | CWHeight;
 
     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
     {
-        int yy = 0;
-        AdjustForParentClientOrigin( x, yy, sizeFlags);
-        windowChanges.x = x;
         valueMask |= CWX;
     }
     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
     {
-        int xx = 0;
-        AdjustForParentClientOrigin( xx, y, sizeFlags);
-        windowChanges.y = y;
         valueMask |= CWY;
     }
-    if (width != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
+    if (width != -1)
     {
-        windowChanges.width = width /* - m_borderSize*2 */;
+        windowChanges.width = wxMax(1, width);
         valueMask |= CWWidth;
     }
-    if (height != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
+    if (height != -1)
     {
-        windowChanges.height = height /* -m_borderSize*2*/;
+        windowChanges.height = wxMax(1, height);
         valueMask |= CWHeight;
     }
 
-    XConfigureWindow(wxGlobalDisplay(), (Window) GetMainWindow(),
-		     valueMask, & windowChanges);
+    XConfigureWindow( display, parent_window, valueMask, &windowChanges );
+
+#if !wxUSE_NANOX    
+    XSizeHints size_hints;
+    size_hints.flags = 0;
+    if (x > -1 && y > -1)
+        size_hints.flags |= PPosition;
+    if (width > -1 && height > -1)
+        size_hints.flags |= PSize;
+    size_hints.width = width;
+    size_hints.height = height;
+    size_hints.x = x;
+    size_hints.y = y;
+    XSetWMNormalHints( wxGlobalDisplay(), (Window) GetMainWindow(),
+                       &size_hints);
+
+    // This seems to be necessary or resizes don't get performed.
+    // Take them out (or even just one of them), and the About
+    // box of the minimal sample probably won't be resized right.
     XSync(wxGlobalDisplay(), False);
-    GetSize(& w, & h);
-    msg.Printf("Tried to set to %d, %d. After setting size: %d, %d", width, height, w, h);
-    wxLogDebug(msg);
+    XSync(wxGlobalDisplay(), False);
+#endif
+#if 1
+    wxSizeEvent event(wxSize(width, height), GetId());
+    event.SetEventObject(this);
+    GetEventHandler()->ProcessEvent(event);
 #endif
 }
 
 void wxTopLevelWindowX11::DoGetPosition(int *x, int *y) const
 {
     XSync(wxGlobalDisplay(), False);
-    Window window = (Window) m_mainWidget;
-    if (window)
-    {
-        int offsetX = 0;
-        int offsetY = 0;
-	
-#if !wxUSE_NANOX
-        // wxLogDebug("Translating...");
-        Window childWindow;
-        XTranslateCoordinates(wxGlobalDisplay(), window, XDefaultRootWindow(wxGlobalDisplay()),
-				  0, 0, & offsetX, & offsetY, & childWindow);
-
-        // wxLogDebug("Offset: %d, %d", offsetX, offsetY);
+    Window window = (Window) m_mainWindow;
+    if (!window)
+        return ;
+
+    Display *display = wxGlobalDisplay();
+    Window root = RootWindowOfScreen(DefaultScreenOfDisplay(display));
+    Window parent_window = window,
+        next_parent   = window;
+
+    // search for the parent that is child of ROOT, because the WM may
+    // reparent twice and notify only the next parent (like FVWM)
+    while (next_parent != root) {
+        Window *theChildren;
+#if wxUSE_NANOX
+        GR_COUNT n;
+#else
+        unsigned int n;
 #endif
-	
-        XWindowAttributes attr;
-        Status status = XGetWindowAttributes(wxGlobalDisplay(), window, & attr);
-        wxASSERT(status);
-        
-        if (status)
-        {
-            *x = attr.x + offsetX;
-            *y = attr.y + offsetY;
-        }
+        parent_window = next_parent;
+        XQueryTree(display, parent_window, &root,
+            &next_parent, &theChildren, &n);
+        XFree(theChildren); // not needed
+    }
+#if 0
+    int xx, yy; unsigned int dummy;
+    XGetGeometry(display, parent_window, &root,
+                 &xx, &yy, &dummy, &dummy, &dummy, &dummy);
+    if (x) *x = xx;
+    if (y) *y = yy;
+#else
+    XWindowAttributes attr;
+    Status status = XGetWindowAttributes( wxGlobalDisplay(), parent_window, & attr);
+    if (status)
+    {
+        if (x) *x = attr.x;
+        if (y) *y = attr.y;
     }
+    else
+    {
+        if (x) *x = 0;
+        if (y) *y = 0;
+    }
+#endif
 }