private void ParseTextStyleMappings()
{
this.parsedTextStyles = new Dictionary <string, CharFont[]>();
var textStyleMappings = rootElement.Element("TextStyleMappings");
if (textStyleMappings == null)
{
throw new InvalidOperationException("Cannot find TextStyleMappings element.");
}
foreach (var mappingElement in textStyleMappings.Elements("TextStyleMapping"))
{
var textStyleName = mappingElement.AttributeValue("name");
var charFonts = new CharFont[3];
foreach (var mapRangeElement in mappingElement.Elements("MapRange"))
{
var fontId = mapRangeElement.AttributeInt32Value("fontId");
var character = mapRangeElement.AttributeInt32Value("start");
var code = mapRangeElement.AttributeValue("code");
var codeMapping = rangeTypeMappings[code];
charFonts[(int)codeMapping] = new CharFont((char)character, fontId);
}
this.parsedTextStyles.Add(textStyleName, charFonts);
}
}
public Result <CharInfo> GetCharInfo(CharFont charFont, TexStyle style)
{
var size = GetSizeFactor(style);
var fontInfo = fontInfoList[charFont.FontId];
var metrics = GetMetrics(charFont, size);
return(metrics.Map(m => new CharInfo(charFont.Character, fontInfo.Font, size, charFont.FontId, m)));
}
public double GetSkew(CharFont charFont, TexStyle style)
{
var fontInfo = fontInfoList[charFont.FontId];
char skewChar = fontInfo.SkewCharacter;
if (skewChar == 1)
{
return(0);
}
return(GetKern(charFont, new CharFont(skewChar, charFont.FontId), style));
}
public CharFont GetLigature(CharFont leftCharFont, CharFont rightCharFont)
{
if (leftCharFont.FontId != rightCharFont.FontId)
{
return(null);
}
var fontInfo = fontInfoList[leftCharFont.FontId];
return(fontInfo.GetLigature(leftCharFont.Character, rightCharFont.Character));
}
private static Result <TexFontMetrics> GetMetrics(CharFont charFont, double size)
{
var fontInfo = fontInfoList[charFont.FontId];
var metrics = fontInfo.GetMetrics(charFont.Character);
return(metrics.Map(m => new TexFontMetrics(
m[TexFontUtilities.MetricsWidth],
m[TexFontUtilities.MetricsHeight],
m[TexFontUtilities.MetricsDepth],
m[TexFontUtilities.MetricsItalic],
size * TexFontUtilities.PixelsPerPoint)));
}
public double GetKern(CharFont leftCharFont, CharFont rightCharFont, TexStyle style)
{
if (leftCharFont.FontId != rightCharFont.FontId)
{
return(0);
}
var fontInfo = fontInfoList[leftCharFont.FontId];
return(fontInfo.GetKern(leftCharFont.Character, rightCharFont.Character,
GetSizeFactor(style) * TexFontUtilities.PixelsPerPoint));
}
public double GetSkew(CharFont charFont, TexStyle style) => throw MethodNotSupported(nameof(GetSkew));
public double GetKern(CharFont leftChar, CharFont rightChar, TexStyle style) => 0.0;
public Result <CharInfo> GetCharInfo(CharFont charFont, TexStyle style) => Result.Error <CharInfo>(MethodNotSupported(nameof(this.GetCharInfo)));
public CharFont GetLigature(CharFont leftChar, CharFont rightChar) => null;