private void ApplyDropShadowEffectValues(string valuesString, DropShadowEffect effect)
{
var values = valuesString.Split('|');
foreach (var nameValuePair in values)
{
var pair = nameValuePair.Split(':');
switch (pair[0])
{
case "Darkness":
// Fix to prevent BUG-1753
if (pair[1] != null && float.TryParse(pair[1], NumberStyles.Float, _numberFormatInfo, out var darkness))
{
if (darkness <= 1.0)
{
effect.Darkness = darkness;
}
}
break;
case "ShadowSize":
if (int.TryParse(pair[1], out var shadowSize))
{
effect.ShadowSize = shadowSize;
}
break;
case "ShadowOffset":
var shadowOffset = new NativePoint();
var coordinates = pair[1].Split(',');
if (int.TryParse(coordinates[0], out var shadowOffsetX))
{
shadowOffset = shadowOffset.ChangeX(shadowOffsetX);
}
if (int.TryParse(coordinates[1], out var shadowOffsetY))
{
shadowOffset = shadowOffset.ChangeY(shadowOffsetY);
}
effect.ShadowOffset = shadowOffset;
break;
}
}
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
// to string
if (destinationType == typeof(string))
{
var sb = new StringBuilder();
switch (value)
{
case TornEdgeEffect tornEdgeEffect:
RetrieveDropShadowEffectValues(tornEdgeEffect, sb);
sb.Append("|");
RetrieveTornEdgeEffectValues(tornEdgeEffect, sb);
return(sb.ToString());
case DropShadowEffect dropShadowEffect:
RetrieveDropShadowEffectValues(dropShadowEffect, sb);
return(sb.ToString());
}
}
// from string
if (!(value is string settings))
{
return(base.ConvertTo(context, culture, value, destinationType));
}
if (destinationType == typeof(DropShadowEffect))
{
var effect = new DropShadowEffect();
ApplyDropShadowEffectValues(settings, effect);
return(effect);
}
if (destinationType == typeof(TornEdgeEffect))
{
var effect = new TornEdgeEffect();
ApplyDropShadowEffectValues(settings, effect);
ApplyTornEdgeEffectValues(settings, effect);
return(effect);
}
return(base.ConvertTo(context, culture, value, destinationType));
}
private void RetrieveDropShadowEffectValues(DropShadowEffect effect, StringBuilder sb)
{
// Fix to prevent BUG-1753 is to use the numberFormatInfo
sb.AppendFormat("Darkness:{0}|ShadowSize:{1}|ShadowOffset:{2},{3}", effect.Darkness.ToString("F2", _numberFormatInfo), effect.ShadowSize, effect.ShadowOffset.X,
effect.ShadowOffset.Y);
}
