/// <summary>
/// Change the indicator state to the given IndicatorLevel with a smooth animation.
/// </summary>
private void changeIndicatorLevel(IndicatorLevel newLevel)
{
switch (newLevel)
{
case IndicatorLevel.Low:
this.LowIndicator.BeginAnimation(OpacityProperty, onAnimation);
this.MiddleIndicator.BeginAnimation(OpacityProperty, offAnimation);
this.HighIndicator.BeginAnimation(OpacityProperty, offAnimation);
moveAnimation.To = -this.oneThirdOfActualWidth;
break;
case IndicatorLevel.Middle:
this.LowIndicator.BeginAnimation(OpacityProperty, offAnimation);
this.MiddleIndicator.BeginAnimation(OpacityProperty, onAnimation);
this.HighIndicator.BeginAnimation(OpacityProperty, offAnimation);
moveAnimation.To = 0;
break;
case IndicatorLevel.High:
this.LowIndicator.BeginAnimation(OpacityProperty, offAnimation);
this.MiddleIndicator.BeginAnimation(OpacityProperty, offAnimation);
onAnimation.To = 1.0;
this.HighIndicator.BeginAnimation(OpacityProperty, onAnimation);
onAnimation.To = 0.9;
moveAnimation.To = this.oneThirdOfActualWidth;
break;
default:
throw new ArgumentOutOfRangeException("newLevel");
}
this.IndicatorTranslateTransform.BeginAnimation(TranslateTransform.XProperty, moveAnimation);
}
private void OnIndicatorStateChanged(IndicatorLevel oldValue, IndicatorLevel newValue)
{
if (oldValue.Equals(newValue))
{
return;
}
this.changeIndicatorLevel(newValue);
}