internal override void WriteFont(PdfWriter writer, PdfIndirectReference piRef, Object[] oParams)
{
if (this.writer != writer)
throw new ArgumentException(MessageLocalization.GetComposedMessage("type3.font.used.with.the.wrong.pdfwriter"));
// Get first & lastchar ...
int firstChar = 0;
while( firstChar < usedSlot.Length && !usedSlot[firstChar] ) firstChar++;
if ( firstChar == usedSlot.Length ) {
throw new DocumentException(MessageLocalization.GetComposedMessage("no.glyphs.defined.for.type3.font"));
}
int lastChar = usedSlot.Length - 1;
while( lastChar >= firstChar && !usedSlot[lastChar] ) lastChar--;
int[] widths = new int[lastChar - firstChar + 1];
int[] invOrd = new int[lastChar - firstChar + 1];
int invOrdIndx = 0, w = 0;
for( int u = firstChar; u<=lastChar; u++, w++ ) {
if ( usedSlot[u] ) {
invOrd[invOrdIndx++] = u;
widths[w] = widths3[u];
}
}
PdfArray diffs = new PdfArray();
PdfDictionary charprocs = new PdfDictionary();
int last = -1;
for (int k = 0; k < invOrdIndx; ++k) {
int c = invOrd[k];
if (c > last) {
last = c;
diffs.Add(new PdfNumber(last));
}
++last;
int c2 = invOrd[k];
String s = GlyphList.UnicodeToName(c2);
if (s == null)
s = "a" + c2;
PdfName n = new PdfName(s);
diffs.Add(n);
Type3Glyph glyph;
char2glyph.TryGetValue((char)c2, out glyph);
PdfStream stream = new PdfStream(glyph.ToPdf(null));
stream.FlateCompress(compressionLevel);
PdfIndirectReference refp = writer.AddToBody(stream).IndirectReference;
charprocs.Put(n, refp);
}
PdfDictionary font = new PdfDictionary(PdfName.FONT);
font.Put(PdfName.SUBTYPE, PdfName.TYPE3);
if (colorized)
font.Put(PdfName.FONTBBOX, new PdfRectangle(0, 0, 0, 0));
else
font.Put(PdfName.FONTBBOX, new PdfRectangle(llx, lly, urx, ury));
font.Put(PdfName.FONTMATRIX, new PdfArray(new float[]{0.001f, 0, 0, 0.001f, 0, 0}));
font.Put(PdfName.CHARPROCS, writer.AddToBody(charprocs).IndirectReference);
PdfDictionary encoding = new PdfDictionary();
encoding.Put(PdfName.DIFFERENCES, diffs);
font.Put(PdfName.ENCODING, writer.AddToBody(encoding).IndirectReference);
font.Put(PdfName.FIRSTCHAR, new PdfNumber(firstChar));
font.Put(PdfName.LASTCHAR, new PdfNumber(lastChar));
font.Put(PdfName.WIDTHS, writer.AddToBody(new PdfArray(widths)).IndirectReference);
if (pageResources.HasResources())
font.Put(PdfName.RESOURCES, writer.AddToBody(pageResources.Resources).IndirectReference);
writer.AddToBody(font, piRef);
}
