/// <summary>Creates a font and adds it to the context.</summary>
/// <param name="fontFamily">the font family</param>
/// <param name="src">the source of the font</param>
/// <returns>true, if successful</returns>
private bool CreateFont(String fontFamily, CssFontFace.CssFontFaceSrc src, Range unicodeRange)
{
if (!CssFontFace.IsSupportedFontFormat(src.GetFormat()))
{
return(false);
}
else
{
if (src.IsLocal())
{
// to method with lazy initialization
ICollection <FontInfo> fonts = context.GetFontProvider().GetFontSet().Get(src.GetSrc());
if (fonts.Count > 0)
{
foreach (FontInfo fi in fonts)
{
context.AddTemporaryFont(fi, fontFamily);
}
//
return(true);
}
else
{
return(false);
}
}
else
{
try {
// Cache at resource resolver level only, at font level we will create font in any case.
// The instance of fontProgram will be collected by GC if the is no need in it.
byte[] bytes = context.GetResourceResolver().RetrieveBytesFromResource(src.GetSrc());
if (bytes != null)
{
FontProgram fp = FontProgramFactory.CreateFont(bytes, false);
context.AddTemporaryFont(fp, PdfEncodings.IDENTITY_H, fontFamily, unicodeRange);
return(true);
}
}
catch (Exception) {
}
return(false);
}
}
}
public virtual void SrcPropertyTest()
{
String fontSrc = "web-fonts/droid-serif-invalid.";
CssStyleSheet styleSheet = CssStyleSheetParser.Parse(new FileStream(sourceFolder + "srcs.css", FileMode.Open
, FileAccess.Read));
CssFontFaceRule fontFaceRule = (CssFontFaceRule)styleSheet.GetStatements()[0];
CssDeclaration src = fontFaceRule.GetProperties()[0];
NUnit.Framework.Assert.AreEqual("src", src.GetProperty(), "src expected");
String[] sources = iText.IO.Util.StringUtil.Split(src.GetExpression(), ",");
NUnit.Framework.Assert.AreEqual(27, sources.Length, "27 sources expected");
for (int i = 0; i < sources.Length; i++)
{
Match m = iText.IO.Util.StringUtil.Match(CssFontFace.CssFontFaceSrc.UrlPattern, sources[i]);
NUnit.Framework.Assert.IsTrue(m.Success, "Expression doesn't match pattern: " + sources[i]);
String format = iText.IO.Util.StringUtil.Group(m, CssFontFace.CssFontFaceSrc.FormatGroup);
String source2 = MessageFormatUtil.Format("{0}({1}){2}", iText.IO.Util.StringUtil.Group(m, CssFontFace.CssFontFaceSrc
.TypeGroup), iText.IO.Util.StringUtil.Group(m, CssFontFace.CssFontFaceSrc.UrlGroup), format != null ?
MessageFormatUtil.Format(" format({0})", format) : "");
String url = CssFontFace.CssFontFaceSrc.Unquote(iText.IO.Util.StringUtil.Group(m, CssFontFace.CssFontFaceSrc
.UrlGroup));
NUnit.Framework.Assert.IsTrue(url.StartsWith(fontSrc), "Invalid url: " + url);
NUnit.Framework.Assert.IsTrue(format == null || CssFontFace.CssFontFaceSrc.ParseFormat(format) != CssFontFace.FontFormat
.None, "Invalid format: " + format);
NUnit.Framework.Assert.AreEqual(sources[i], source2, "Group check fails: ");
CssFontFace.CssFontFaceSrc fontFaceSrc = CssFontFace.CssFontFaceSrc.Create(sources[i]);
NUnit.Framework.Assert.IsTrue(fontFaceSrc.GetSrc().StartsWith(fontSrc), "Invalid url: " + fontSrc);
String type = "url";
if (fontFaceSrc.IsLocal())
{
type = "local";
}
NUnit.Framework.Assert.IsTrue(sources[i].StartsWith(type), "Type '" + type + "' expected: " + sources[i]);
switch (fontFaceSrc.GetFormat())
{
case CssFontFace.FontFormat.OpenType: {
NUnit.Framework.Assert.IsTrue(sources[i].Contains("opentype"), "Format " + fontFaceSrc.GetFormat() + " expected: "
+ sources[i]);
break;
}
case CssFontFace.FontFormat.TrueType: {
NUnit.Framework.Assert.IsTrue(sources[i].Contains("truetype"), "Format " + fontFaceSrc.GetFormat() + " expected: "
+ sources[i]);
break;
}
case CssFontFace.FontFormat.SVG: {
NUnit.Framework.Assert.IsTrue(sources[i].Contains("svg"), "Format " + fontFaceSrc.GetFormat() + " expected: "
+ sources[i]);
break;
}
case CssFontFace.FontFormat.None: {
NUnit.Framework.Assert.IsFalse(sources[i].Contains("format("), "Format " + fontFaceSrc.GetFormat() + " expected: "
+ sources[i]);
break;
}
}
}
}