public Display(IMap map)
{
this.Map = map;
m_extentChanged = true;
m_fontsizeFactor = m_widthFactor = m_refScale = -1.0;
//m_fixScales=new ArrayList();
_labelEngine = new LabelEngine2();
_screen = new DisplayScreen();
_screen.RefreshSettings();
this.dpi = GraphicsEngine.Current.Engine.ScreenDpi;
}