private void ColorImage_PointerPressed(object sender, PointerRoutedEventArgs e)
{
// Debug.WriteLine("pressed");
// Debug.WriteLine(e.GetCurrentPoint(this.ColorPanel).Position);
var position = e.GetCurrentPoint(this.ColorImage).Position;
var hsb = new float[3];
hsb[2] = 1.0f;
hsb[0] = (float)(int)(position.X / this.ColorImage.ActualWidth * 360);
hsb[1] = float.Parse((position.Y / this.ColorImage.ActualHeight).ToString("0.00"));
this.Color = CWColorService.ColorFromRGB(CWColorService.HSBToRGB(hsb));
this.ColorPoint = position;
ColorChange(this.Color);
}