public Size Measure(string text, double fontSize, Typeface typeface, double maxWidth)
{
if (htmlElement == null)
{
htmlElement = Document.CreateElement("div");
Bridge.Html5.Window.Body.AppendChild(htmlElement);
}
htmlElement.SetHtmlStyleProperty("position", "absolute");
htmlElement.SetHtmlStyleProperty("visibility", "hidden");
htmlElement.SetHtmlFontSize(fontSize, converter);
htmlElement.SetHtmlFontFamily(typeface.FontFamily, converter);
htmlElement.SetHtmlFontStretch(typeface.Stretch, converter);
htmlElement.SetHtmlFontStyle(typeface.Style, converter);
htmlElement.SetHtmlFontWeight(typeface.Weight, converter);
if (maxWidth.IsNaN() || double.IsInfinity(maxWidth))
{
htmlElement.SetHtmlTextWrapping(TextWrapping.NoWrap, converter);
htmlElement.ClearHtmlStyleProperty("max-width");
}
else
{
htmlElement.SetHtmlTextWrapping(TextWrapping.Wrap, converter);
htmlElement.SetHtmlStyleProperty("max-width", converter.ToPixelString(maxWidth));
}
htmlElement.InnerHTML = converter.ToHtmlContentString(text.DefaultIfNullOrEmpty("A"));
(int width, int height) = htmlElement.Dimensions;
return(new Size(text.IsNullOrEmpty() ? 0 : width + 2, height));
}