x11 window position patch for SFML 2.0

x11_window_pos.patch

284,286c284,304
<     XWindowAttributes attributes;
<     XGetWindowAttributes(m_display, m_window, &attributes);
<     return Vector2i(attributes.x, attributes.y);
---
>       ::Window activeWin, root;
>       int xCoordinate, yCoordinate;
>       uint width, height, border_width, depth;
>       ::Window *children;
>       uint childcount;
>       
>       int x = 0;
>       int y = 0;
> 
>       activeWin = m_window;
>       
>       while (activeWin != root) {
>               if(XGetGeometry(m_display, activeWin, &root, &xCoordinate, &yCoordinate, &width, &height, &border_width, &depth)) {
>                       x += xCoordinate;
>                       y += yCoordinate;
>               }
> 
>               XQueryTree(m_display, activeWin, &root, &activeWin, &children, &childcount);
>       }
>       
>       return Vector2i(x, y);