private void MapView_ViewportChanged(object sender, EventArgs e)
{
var zl = (int)Math.Floor(this.ZoomLevel);
if (zl != this.discreteZoomLevel)
{
this.discreteZoomLevel = zl;
this.RaiseZoomLevelChanged(this.discreteZoomLevel);
}
var rect = new LocationRect
{
NorthWest = Common.Utils.Mid(this.Center, this.Bounds.NorthWest),
SouthEast = Common.Utils.Mid(this.Center, this.Bounds.SouthEast)
};
if (this.previousCenter == null)
{
this.previousCenter = this.Center;
}
if (!rect.Contains(this.previousCenter))
{
this.previousCenter = this.Center;
this.RaiseViewportMoved(this.previousCenter);
}
}
private void RaiseViewportMoved(Location location)
{
if (this.ViewportMoved != null)
{
this.ViewportMoved(this, location);
}
}
public bool Contains(Location location)
{
return(this.Bounds.Contains(location));
}
private void MapView_Loaded(object sender, RoutedEventArgs e)
{
this.previousCenter = this.Center;
this.UpdateBounds();
}
