public void UpdatePosition()
{
var pos = VisualExtension.GetMousePosition();
HorizontalOffset = pos.X / _deviceScaleX - 8;
VerticalOffset = pos.Y / _deviceScaleY - 8;
}
private static bool IsDragging(object sender, MouseEventArgs e)
{
if (_dragging || _previous != sender || e.LeftButton != MouseButtonState.Pressed ||
VisualExtension.GetMousePosition().DistanceTo(_startingPoint) < 3d)
{
return(false);
}
if (IgnoreSpecialControls(sender, e))
{
_previous = null;
return(false);
}
return(true);
}
private static void Element_MouseDown(object sender, MouseButtonEventArgs e)
{
if (!e.Handled)
{
var element = sender as FrameworkElement;
if (element != null && !IgnoreSpecialControls(sender, e))
{
_previous = element;
_startingPoint = VisualExtension.GetMousePosition();
return;
}
}
_previous = null;
}