private void _ReadAfmFile_ReadCharMetric(AfmReader reader, int charCode)
{
string subKey;
int unicode = -1;
int height = 0;
int width = 0;
AfmRectangle box = new AfmRectangle(0, 0, 0, 0);
while ((subKey = reader.ReadKey(true)) != null)
{
switch (subKey)
{
case "WX":
case "W0X":
width = reader.ReadInteger();
break;
case "WY":
case "W0Y":
height = reader.ReadInteger();
break;
case "B":
box = reader.ReadRectangle();
break;
case "L":
break;
case "VV":
case "W1X":
case "W1Y":
throw new PdfException("Only right to left font are supported.");
case "N": {
string GlyphName = reader.ReadString(false);
unicode = AfmReader.GlyphNameToUnicode(GlyphName);
if (unicode < 0 && charCode < 0)
{
throw new PdfException("Unknown GlyphName '" + GlyphName + "'.");
}
}
break;
default:
// System.Diagnostics.Debug.WriteLine("Warning: Unknown AFM sub-key '"+subKey+"'.");
break;
}
}
if (unicode < 0)
{
if (charCode < 0)
{
throw new PdfException("Unknown charcode and unicode.");
}
if (_charMetric[charCode] == null)
{
unicode = charCode;
}
}
if (unicode > 0)
{
_charMetric[unicode] = new AfmCharMetric(height, width, box);
}
}
protected void ReadAfmFile(Stream afmStream)
{
AfmReader Reader = new AfmReader(afmStream);
try {
string Key;
bool fCharMetrics = false;
while ((Key = Reader.ReadKey(false)) != null)
{
switch (Key)
{
case "Comment": break;
case "Version": break;
case "FontName": _fontName = Reader.ReadString(false); break;
case "FullName": _fullName = Reader.ReadString(false); break;
case "FamilyName": _familyName = Reader.ReadString(false); break;
case "Weight": _weight = Reader.ReadString(false); break;
case "IsCIDFont": _isCIDFont = Reader.ReadBoolean(); break;
case "CharacterSet": _characterSet = Reader.ReadString(false); break;
case "FontBBox": _fontBBox = Reader.ReadRectangle(); break;
case "ItalicAngle": _italicAngle = Reader.ReadNumber(); break;
case "IsFixedPitch": _isFixedPitch = Reader.ReadBoolean(); break;
case "CapHeight": _capHeight = Reader.ReadInteger(); break;
case "XHeight": _xheight = Reader.ReadInteger(); break;
case "UnderlinePosition": _underlinePosition = Reader.ReadInteger(); break;
case "UnderlineThickness": _underlineThickness = Reader.ReadInteger(); break;
case "Ascender": _ascender = Reader.ReadInteger(); break;
case "Descender": _descender = Reader.ReadInteger(); break;
case "StdHW": _stdHW = Reader.ReadInteger(); break;
case "StdVW": _stdVW = Reader.ReadInteger(); break;
case "VVector":
case "StartDirection":
if (Reader.ReadInteger() != 0)
{
throw new PdfException("Only right to left font are supported.");
}
break;
case "StartCharMetrics":
fCharMetrics = true;
break;
case "EndCharMetrics":
fCharMetrics = false;
break;
case "C":
case "CH":
if (!fCharMetrics)
{
throw new PdfException("CharMetrics not active.");
}
_ReadAfmFile_ReadCharMetric(Reader, (Key == "CH") ? (int)Reader.ReadHex() : Reader.ReadInteger());
break;
case "Notice":
case "EncodingScheme":
case "StartFontMetrics":
case "EndFontMetrics":
case "StartKernData":
case "EndKernData":
case "StartKernPairs":
case "EndKernPairs":
case "KPX":
break;
default:
// System.Diagnostics.Debug.WriteLine("Warning: Unknown AFM key '"+Key+"'.");
break;
}
}
}
catch (Exception Err) {
throw new PdfException("Error parsing Afm file at line " + Reader.LineNo.ToString(CultureInfo.InvariantCulture) + ".", Err);
}
}
