public override bool AddChar(int code, int FallbackLevel)
{
bool Result = FTrueTypeData.HasGlyph(code);
if (!Result)
{
TPdfFont Fallbk = FallbackFont(FallbackLevel);
if (Fallbk != null)
{
if (Fallbk.AddChar(code, FallbackLevel + 1))
{
return(true);
}
}
}
if (Result || FallbackLevel == 0)
{
int ccode = FTrueTypeData.Glyph(code, true);
int newcode = EmbeddedData.GetNewGlyphFromOldGlyph(ccode);
UsedChars.Add((char)newcode, FTrueTypeData.GlyphWidth(ccode));
ToUnicodeData.Add(newcode, (int)code);
}
return(Result);
}
public override TKernedString[] KernString(string s)
{
int[] b = new int[s.Length];
for (int i = 0; i < b.Length; i++)
{
b[i] = FTrueTypeData.Glyph(s[i], false);
}
return(FTrueTypeData.KernString(s, b));
}
internal override byte[] EncodeString(string s)
{
byte[] Result = new byte[2 * s.Length];
for (int i = 0; i < s.Length; i++)
{
int gl = FTrueTypeData.Glyph((int)s[i], true);
MotorolaSetWord(Result, i * 2, EmbeddedData.GetNewGlyphFromOldGlyph(gl));
}
return(Result);
}
public override TKernedString[] KernString(string s)
{
//Here we don't have chars > 255, so there are no unicode surrogates.
int[] bi = new int[s.Length];
for (int i = 0; i < s.Length; i++)
{
bi[i] = FTrueTypeData.Glyph(s[i], false);
}
return(FTrueTypeData.KernString(s, bi));
}
public override real MeasureString(string s)
{
real Result = 0;
int[] b = new int[s.Length];
bool[] ignore = new bool[s.Length];
for (int i = 0; i < b.Length; i++)
{
TPdfFont f = Fallback(s[i], 0);
if (f != this && f != null)
{
Result += f.MeasureString(new String(s[i], 1));
ignore[i] = true;
b[i] = 0;
}
else
{
b[i] = FTrueTypeData.Glyph(s[i], true);
}
}
return(Result + FTrueTypeData.MeasureString(b, ignore));
}
public override real MeasureString(string s)
{
real Result = 0;
//Here we don't have chars > 255, so there are no unicode surrogates.
int[] bi = new int[s.Length];
bool[] ignore = new bool[s.Length];
for (int i = 0; i < s.Length; i++)
{
TPdfFont f = Fallback(s[i], 0);
if (f != this && f != null)
{
Result += f.MeasureString(new String(s[i], 1));
ignore[i] = true;
bi[i] = 0;
}
else
{
bi[i] = FTrueTypeData.Glyph(s[i], true); //This returns the Glyph for an unicode character, so s[i] is ok. (s is unicode)
}
}
return(Result + FTrueTypeData.MeasureString(bi, ignore));
}
private void SaveWidths(TPdfStream DataStream)
{
//Docs say it is prefered to save as indirect object, but acrobat writes it directly.
//Widths object.
TPdfBaseRecord.WriteLine(DataStream, TPdfTokens.GetString(TPdfToken.WidthsName) + " " + TPdfTokens.GetString(TPdfToken.OpenArray));
int fc = FirstChar; if (fc < 0)
{
fc = 0;
}
for (int i = fc; i <= LastChar; i++) //characters on winansi are NOT the same as in low byte unicode. For example char 0x92 (146) is a typographic ' in winansi, not defined in unicode.
{
int z = (int)CharUtils.GetUniFromWin1252_PDF((byte)i);
TPdfBaseRecord.WriteLine(DataStream, PdfConv.CoordsToString(Math.Round(FTrueTypeData.GlyphWidth(FTrueTypeData.Glyph(z, false))))); //don't log the erorr here, character doesn't need to exist.
}
TPdfBaseRecord.WriteLine(DataStream, TPdfTokens.GetString(TPdfToken.CloseArray));
}