public TagCloud(ICircularCloudLayouter layouter, Size minCharSize, Func <int, int> valueToHeight)
: this(layouter, pair => GetSizeFromValue(pair.Value, pair.Key, valueToHeight, minCharSize))
{
this.layouter = layouter;
if (minCharSize.Width == 0 || minCharSize.Height == 0)
{
throw new ArgumentException("Bad min char size: width and height must be non zero");
}
if (valueToHeight == null)
{
throw new ArgumentNullException(nameof(valueToHeight));
}
}
private static Size GetSizeFromValue(int value, string tag, Func <int, int> valueToHeight, Size minCharSize)
{
var height = valueToHeight(value) + minCharSize.Height;
var width = 1.0 * height * tag.Length / minCharSize.Height * minCharSize.Width + minCharSize.Width;
return(new Size((int)width, height));
}
