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));
}
public static void SetHtmlBackgroundSize(this HtmlElement element, Size size, HtmlValueConverter converter)
{
if (Size.IsNullOrEmpty(size))
{
element.ClearHtmlStyleProperty("background-size");
}
else
{
element.SetHtmlStyleProperty("background-size", converter.ToPixelString(size));
}
}
public static void SetHtmlBackgroundLocation(this HtmlElement element, Point location, HtmlValueConverter converter)
{
if (Point.IsNullOrEmpty(location))
{
element.ClearHtmlStyleProperty("background-position");
}
else
{
element.SetHtmlStyleProperty("background-position", converter.ToPixelString(location));
}
}
public static void SetHtmlFontSize(this HtmlElement element, double fontSize, HtmlValueConverter converter)
{
if (fontSize.IsNaN())
{
element.ClearHtmlStyleProperty("font-size");
}
else
{
element.SetHtmlStyleProperty("font-size", converter.ToPixelString(fontSize));
}
}
public static void SetHtmlSize(this HtmlElement element, Size size, HtmlValueConverter converter)
{
if (size.Width.IsNaN())
{
element.ClearHtmlStyleProperty("width");
}
else
{
element.SetHtmlStyleProperty("width", converter.ToPixelString(size.Width));
}
if (size.Height.IsNaN())
{
element.ClearHtmlStyleProperty("height");
}
else
{
element.SetHtmlStyleProperty("height", converter.ToPixelString(size.Height));
}
}
public static void SetHtmlCornerRadius(this HtmlElement element, CornerRadius cornerRadius, HtmlValueConverter converter)
{
element.ClearHtmlStyleProperty("border-radius");
element.ClearHtmlStyleProperty("border-top-left-radius");
element.ClearHtmlStyleProperty("border-top-right-radius");
element.ClearHtmlStyleProperty("border-bottom-left-radius");
element.ClearHtmlStyleProperty("border-bottom-right-radius");
if (cornerRadius != CornerRadius.Zero)
{
if (cornerRadius.IsUniform)
{
element.SetHtmlStyleProperty("border-radius", converter.ToPixelString(cornerRadius.TopLeft));
}
else
{
element.SetHtmlStyleProperty("border-top-left-radius", converter.ToPixelString(cornerRadius.TopLeft));
element.SetHtmlStyleProperty("border-top-right-radius", converter.ToPixelString(cornerRadius.TopRight));
element.SetHtmlStyleProperty("border-bottom-left-radius", converter.ToPixelString(cornerRadius.BottomLeft));
element.SetHtmlStyleProperty("border-bottom-right-radius", converter.ToPixelString(cornerRadius.BottomRight));
}
}
}
public static void SetHtmlBorderThickness(this HtmlElement element, Thickness borderThickness, HtmlValueConverter converter)
{
if (borderThickness == Thickness.Zero)
{
element.ClearHtmlStyleProperty("border-style");
element.ClearHtmlStyleProperty("border-width");
element.ClearHtmlStyleProperty("border-image-slice");
}
else
{
element.SetHtmlStyleProperty("border-style", "solid");
element.SetHtmlStyleProperty("border-width", converter.ToPixelString(borderThickness));
element.SetHtmlStyleProperty("border-image-slice", converter.ToImplicitValueString(borderThickness));
}
}
public static void SetHtmlLocation(this HtmlElement element, Point location, HtmlValueConverter converter)
{
element.SetHtmlStyleProperty("position", "absolute");
element.SetHtmlStyleProperty("left", converter.ToPixelString(location.X));
element.SetHtmlStyleProperty("top", converter.ToPixelString(location.Y));
}