private void ReadScriptRecord(TagAndLocation tagLoc)
{
openTypeReader.rf.Seek(tagLoc.location);
int locationDefaultLanguage = openTypeReader.rf.ReadUnsignedShort();
if (locationDefaultLanguage > 0)
{
locationDefaultLanguage += tagLoc.location;
}
TagAndLocation[] tagsLocs = openTypeReader.ReadTagAndLocations(tagLoc.location);
ScriptRecord srec = new ScriptRecord();
srec.tag = tagLoc.tag;
srec.languages = new LanguageRecord[tagsLocs.Length];
for (int k = 0; k < tagsLocs.Length; ++k)
{
srec.languages[k] = ReadLanguageRecord(tagsLocs[k]);
}
if (locationDefaultLanguage > 0)
{
TagAndLocation t = new TagAndLocation();
t.tag = "";
t.location = locationDefaultLanguage;
srec.defaultLanguage = ReadLanguageRecord(t);
}
records.Add(srec);
}
public virtual LanguageRecord GetLanguageRecord(String[] scripts, String language)
{
ScriptRecord scriptFound = null;
ScriptRecord scriptDefault = null;
foreach (ScriptRecord sr in records)
{
if (DEFAULT_SCRIPT.Equals(sr.tag))
{
scriptDefault = sr;
break;
}
}
foreach (String script in scripts)
{
foreach (ScriptRecord sr in records)
{
if (sr.tag.Equals(script))
{
scriptFound = sr;
break;
}
if (DEFAULT_SCRIPT.Equals(script))
{
scriptDefault = sr;
}
}
if (scriptFound != null)
{
break;
}
}
if (scriptFound == null)
{
scriptFound = scriptDefault;
}
if (scriptFound == null)
{
return(null);
}
LanguageRecord lang = null;
foreach (LanguageRecord lr in scriptFound.languages)
{
if (lr.tag.Equals(language))
{
lang = lr;
break;
}
}
if (lang == null)
{
lang = scriptFound.defaultLanguage;
}
return(lang);
}
public virtual void TestFetchLangSysByTag()
{
TrueTypeFont fontProgram = (TrueTypeFont)FontProgramFactory.CreateFont(RESOURCE_FOLDER + "NotoSansMyanmar-Regular.ttf"
);
GlyphSubstitutionTableReader gsub = fontProgram.GetGsubTable();
ScriptRecord mym2 = gsub.GetScriptRecords()[0];
NUnit.Framework.Assert.AreEqual("mym2", mym2.tag);
// default LangSys has no tag
NUnit.Framework.Assert.AreEqual("", gsub.GetLanguageRecord("mym2").tag);
NUnit.Framework.Assert.AreEqual(LanguageTags.SGAW_KAREN, gsub.GetLanguageRecord("mym2", LanguageTags.SGAW_KAREN
).tag);
NUnit.Framework.Assert.AreEqual(LanguageTags.MON, gsub.GetLanguageRecord("mym2", LanguageTags.MON).tag);
NUnit.Framework.Assert.IsNull(gsub.GetLanguageRecord(null));
NUnit.Framework.Assert.IsNull(gsub.GetLanguageRecord("mym3"));
NUnit.Framework.Assert.IsNull(gsub.GetLanguageRecord("mym3", LanguageTags.SGAW_KAREN));
}
