/// <summary>Resolve the font size stored inside the passed renderer</summary>
/// <param name="renderer">renderer containing the font size declaration</param>
/// <param name="parentFontSize">parent font size to fall back on if the renderer does not contain a font size declarations or if the stored declaration is invalid
/// </param>
/// <returns>float containing the font-size, or the parent font size if the renderer's declaration cannot be resolved
/// </returns>
public static float ResolveFontSize(ISvgTextNodeRenderer renderer, float parentFontSize)
{
//Use own font-size declaration if it is present, parent's otherwise
float fontSize = float.NaN;
String elementFontSize = renderer.GetAttribute(SvgConstants.Attributes.FONT_SIZE);
if (null != elementFontSize && !String.IsNullOrEmpty(elementFontSize))
{
if (CssUtils.IsRelativeValue(elementFontSize) || CommonCssConstants.LARGER.Equals(elementFontSize) || CommonCssConstants
.SMALLER.Equals(elementFontSize))
{
// TODO DEVSIX-2866 Support rem value for svgs
fontSize = CssUtils.ParseRelativeFontSize(elementFontSize, parentFontSize);
}
else
{
fontSize = CssUtils.ParseAbsoluteFontSize(elementFontSize, CommonCssConstants.PX);
}
}
if ((float.IsNaN(fontSize)) || fontSize < 0f)
{
fontSize = parentFontSize;
}
return(fontSize);
}
public void AddChild(ISvgTextNodeRenderer child)
{
// final method, in order to disallow adding null
if (child != null)
{
children.Add(child);
}
}
private void DeepCopyChildren(iText.Svg.Renderers.Impl.TextSvgBranchRenderer deepCopy)
{
foreach (ISvgTextNodeRenderer child in children)
{
ISvgTextNodeRenderer newChild = (ISvgTextNodeRenderer)child.CreateDeepCopy();
child.SetParent(deepCopy);
deepCopy.AddChild(newChild);
}
}
/// <summary>Resolve the font size stored inside the passed renderer</summary>
/// <param name="renderer">renderer containing the font size declaration</param>
/// <param name="parentFontSize">parent font size to fall back on if the renderer does not contain a font size declarations or if the stored declaration is invalid
/// </param>
/// <returns>float containing the font-size, or the parent font size if the renderer's declaration cannot be resolved
/// </returns>
public static float ResolveFontSize(ISvgTextNodeRenderer renderer, float parentFontSize)
{
//Use own font-size declaration if it is present, parent's otherwise
float fontSize = iText.Svg.Utils.SvgTextUtil.ExtractFontSize(renderer);
if ((float.IsNaN(fontSize)) || fontSize < 0f)
{
fontSize = parentFontSize;
}
return(fontSize);
}
/// <summary>Extract and parse the font-size declaration stored inside the attributes of the passed renderer</summary>
/// <param name="renderer">renderer to extract font-size declaration from</param>
/// <returns>a float containing the font-size interpreted as pt, or NaN if the font-size was not specified in the passed renderer
/// </returns>
private static float ExtractFontSize(ISvgTextNodeRenderer renderer)
{
float fontSize = float.NaN;
if (renderer.GetAttribute(SvgConstants.Attributes.FONT_SIZE) != null)
{
String fontSizeRawValue = renderer.GetAttribute(SvgConstants.Attributes.FONT_SIZE);
if (fontSizeRawValue != null && !String.IsNullOrEmpty(fontSizeRawValue))
{
fontSize = CssUtils.ParseAbsoluteLength(fontSizeRawValue, CommonCssConstants.PT);
}
}
return(fontSize);
}
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