/**
* Defines a glyph. If the character was already defined it will return the same content
* @param c the character to match this glyph.
* @param wx the advance this character will have
* @param llx the X lower left corner of the glyph bounding box. If the <CODE>colorize</CODE> option is
* <CODE>true</CODE> the value is ignored
* @param lly the Y lower left corner of the glyph bounding box. If the <CODE>colorize</CODE> option is
* <CODE>true</CODE> the value is ignored
* @param urx the X upper right corner of the glyph bounding box. If the <CODE>colorize</CODE> option is
* <CODE>true</CODE> the value is ignored
* @param ury the Y upper right corner of the glyph bounding box. If the <CODE>colorize</CODE> option is
* <CODE>true</CODE> the value is ignored
* @return a content where the glyph can be defined
*/
public PdfContentByte DefineGlyph(char c, float wx, float llx, float lly, float urx, float ury)
{
if (c == 0 || c > 255)
{
throw new ArgumentException("The char " + (int)c + " doesn't belong in this Type3 font");
}
usedSlot[c] = true;
Type3Glyph glyph = (Type3Glyph)char2glyph[c];
if (glyph != null)
{
return(glyph);
}
widths3[c] = (int)wx;
if (!colorized)
{
if (float.IsNaN(this.llx))
{
this.llx = llx;
this.lly = lly;
this.urx = urx;
this.ury = ury;
}
else
{
this.llx = Math.Min(this.llx, llx);
this.lly = Math.Min(this.lly, lly);
this.urx = Math.Max(this.urx, urx);
this.ury = Math.Max(this.ury, ury);
}
}
glyph = new Type3Glyph(writer, pageResources, wx, llx, lly, urx, ury, colorized);
char2glyph[c] = glyph;
return(glyph);
}
public PdfContentByte GetDuplicate()
{
Type3Glyph dup = new Type3Glyph();
dup.writer = writer;
dup.pdf = pdf;
dup.pageResources = pageResources;
dup.colorized = colorized;
return(dup);
}
internal override void WriteFont(PdfWriter writer, PdfIndirectReference piRef, Object[] oParams)
{
if (this.writer != writer)
{
throw new ArgumentException("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("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 = (Type3Glyph)char2glyph[(char)c2];
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);
}
public PdfContentByte GetDuplicate()
{
Type3Glyph dup = new Type3Glyph();
dup.writer = writer;
dup.pdf = pdf;
dup.pageResources = pageResources;
dup.colorized = colorized;
return dup;
}
/**
* Defines a glyph. If the character was already defined it will return the same content
* @param c the character to match this glyph.
* @param wx the advance this character will have
* @param llx the X lower left corner of the glyph bounding box. If the <CODE>colorize</CODE> option is
* <CODE>true</CODE> the value is ignored
* @param lly the Y lower left corner of the glyph bounding box. If the <CODE>colorize</CODE> option is
* <CODE>true</CODE> the value is ignored
* @param urx the X upper right corner of the glyph bounding box. If the <CODE>colorize</CODE> option is
* <CODE>true</CODE> the value is ignored
* @param ury the Y upper right corner of the glyph bounding box. If the <CODE>colorize</CODE> option is
* <CODE>true</CODE> the value is ignored
* @return a content where the glyph can be defined
*/
public PdfContentByte DefineGlyph(char c, float wx, float llx, float lly, float urx, float ury)
{
if (c == 0 || c > 255)
throw new ArgumentException("The char " + (int)c + " doesn't belong in this Type3 font");
usedSlot[c] = true;
Type3Glyph glyph = (Type3Glyph)char2glyph[c];
if (glyph != null)
return glyph;
widths3[c] = (int)wx;
if (!colorized) {
if (float.IsNaN(this.llx)) {
this.llx = llx;
this.lly = lly;
this.urx = urx;
this.ury = ury;
}
else {
this.llx = Math.Min(this.llx, llx);
this.lly = Math.Min(this.lly, lly);
this.urx = Math.Max(this.urx, urx);
this.ury = Math.Max(this.ury, ury);
}
}
glyph = new Type3Glyph(writer, pageResources, wx, llx, lly, urx, ury, colorized);
char2glyph[c] = glyph;
return glyph;
}
