/** Does the actual document manipulation to encrypt it.
* @throws DocumentException on error
* @throws IOException on error
*/
protected void go()
{
body = new PdfBody(HEADER.Length, this, true);
os.Write(HEADER, 0, HEADER.Length);
PdfObject[] xb = reader.xrefObj;
myXref = new int[xb.Length];
int idx = 1;
for (int k = 1; k < xb.Length; ++k)
{
if (xb[k] != null)
{
myXref[k] = idx++;
}
}
file.reOpen();
for (int k = 1; k < xb.Length; ++k)
{
if (xb[k] != null)
{
addToBody(xb[k]);
}
}
file.close();
PdfIndirectReference encryption = null;
PdfLiteral fileID = null;
if (crypto != null)
{
PdfIndirectObject encryptionObject = body.Add(crypto.EncryptionDictionary);
encryptionObject.writeTo(os);
encryption = encryptionObject.IndirectReference;
fileID = crypto.FileID;
}
// write the cross-reference table of the body
os.Write(body.CrossReferenceTable, 0, body.CrossReferenceTable.Length);
PRIndirectReference iRoot = (PRIndirectReference)reader.trailer.get(PdfName.ROOT);
PdfIndirectReference root = new PdfIndirectReference(0, myXref[iRoot.Number]);
PRIndirectReference iInfo = (PRIndirectReference)reader.trailer.get(PdfName.INFO);
PdfIndirectReference info = null;
if (iInfo != null)
{
info = new PdfIndirectReference(0, myXref[iInfo.Number]);
}
PdfTrailer trailer = new PdfTrailer(body.Size,
body.Offset,
root,
info,
encryption,
fileID);
byte[] tmp = trailer.toPdf(this);
os.Write(tmp, 0, tmp.Length);
os.Close();
}
internal void writeAllPages()
{
try {
file.reOpen();
foreach (PdfImportedPage ip in importedPages.Values)
{
writer.addToBody(ip.FormXObject, ip.IndirectReference);
}
writeAllVisited();
}
finally {
try {
file.close();
}
catch (Exception e) {
e.GetType();
//Empty on purpose
}
}
}
/** Does the actual work of subsetting the font.
* @throws IOException on error
* @throws DocumentException on error
* @return the subset font
*/
internal byte[] process()
{
try {
rf.reOpen();
createTableDirectory();
readLoca();
flatGlyphs();
createNewGlyphTables();
locaTobytes();
assembleFont();
return(outFont);
}
finally {
try {
rf.close();
}
catch (Exception e) {
e.GetType();
// empty on purpose
}
}
}
public void close()
{
file.close();
}
/** Reads the font metrics
* @param rf the AFM file
* @throws DocumentException the AFM file is invalid
* @throws IOException the AFM file could not be read
*/
public void process(RandomAccessFileOrArray rf)
{
string line;
bool isMetrics = false;
while ((line = rf.readLine()) != null)
{
StringTokenizer tok = new StringTokenizer(line);
if (!tok.hasMoreTokens())
{
continue;
}
string ident = tok.nextToken();
if (ident.Equals("FontName"))
{
FontName = tok.nextToken("\u00ff").Substring(1);
}
else if (ident.Equals("FullName"))
{
FullName = tok.nextToken("\u00ff").Substring(1);
}
else if (ident.Equals("FamilyName"))
{
FamilyName = tok.nextToken("\u00ff").Substring(1);
}
else if (ident.Equals("Weight"))
{
Weight = tok.nextToken("\u00ff").Substring(1);
}
else if (ident.Equals("ItalicAngle"))
{
ItalicAngle = float.Parse(tok.nextToken());
}
else if (ident.Equals("IsFixedPitch"))
{
IsFixedPitch = tok.nextToken().Equals("true");
}
else if (ident.Equals("CharacterSet"))
{
CharacterSet = tok.nextToken("\u00ff").Substring(1);
}
else if (ident.Equals("FontBBox"))
{
llx = (int)float.Parse(tok.nextToken());
lly = (int)float.Parse(tok.nextToken());
urx = (int)float.Parse(tok.nextToken());
ury = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("UnderlinePosition"))
{
UnderlinePosition = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("UnderlineThickness"))
{
UnderlineThickness = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("EncodingScheme"))
{
EncodingScheme = tok.nextToken("\u00ff").Substring(1);
}
else if (ident.Equals("CapHeight"))
{
CapHeight = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("XHeight"))
{
XHeight = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("Ascender"))
{
Ascender = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("Descender"))
{
Descender = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("StdHW"))
{
StdHW = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("StdVW"))
{
StdVW = (int)float.Parse(tok.nextToken());
}
else if (ident.Equals("StartCharMetrics"))
{
isMetrics = true;
break;
}
}
if (!isMetrics)
{
throw new DocumentException("Missing StartCharMetrics in " + fileName);
}
while ((line = rf.readLine()) != null)
{
StringTokenizer tok = new StringTokenizer(line);
if (!tok.hasMoreTokens())
{
continue;
}
string ident = tok.nextToken();
if (ident.Equals("EndCharMetrics"))
{
isMetrics = false;
break;
}
int C = -1;
int WX = 250;
string N = "";
tok = new StringTokenizer(line, ";");
while (tok.hasMoreTokens())
{
StringTokenizer tokc = new StringTokenizer(tok.nextToken());
if (!tokc.hasMoreTokens())
{
continue;
}
ident = tokc.nextToken();
if (ident.Equals("C"))
{
C = int.Parse(tokc.nextToken());
}
else if (ident.Equals("WX"))
{
WX = int.Parse(tokc.nextToken());
}
else if (ident.Equals("N"))
{
N = tokc.nextToken();
}
}
CharMetrics.Add(new Object[] { C, WX, N });
}
if (isMetrics)
{
throw new DocumentException("Missing EndCharMetrics in " + fileName);
}
while ((line = rf.readLine()) != null)
{
StringTokenizer tok = new StringTokenizer(line);
if (!tok.hasMoreTokens())
{
continue;
}
string ident = tok.nextToken();
if (ident.Equals("EndFontMetrics"))
{
return;
}
if (ident.Equals("StartKernPairs"))
{
isMetrics = true;
break;
}
}
if (!isMetrics)
{
throw new DocumentException("Missing EndFontMetrics in " + fileName);
}
while ((line = rf.readLine()) != null)
{
StringTokenizer tok = new StringTokenizer(line);
if (!tok.hasMoreTokens())
{
continue;
}
string ident = tok.nextToken();
if (ident.Equals("KPX"))
{
string first = tok.nextToken();
string second = tok.nextToken();
int width = (int)float.Parse(tok.nextToken());
Object[] relates = (Object[])KernPairs[first];
if (relates == null)
{
KernPairs.Add(first, new Object[] { second, width });
}
else
{
int n = relates.Length;
Object[] relates2 = new Object[n + 2];
Array.Copy(relates, 0, relates2, 0, n);
relates2[n] = second;
relates2[n + 1] = width;
KernPairs.Add(first, relates2);
}
}
else if (ident.Equals("EndKernPairs"))
{
isMetrics = false;
break;
}
}
if (isMetrics)
{
throw new DocumentException("Missing EndKernPairs in " + fileName);
}
rf.close();
}
/** Creates a new Type1 font.
* @param ttfAfm the AFM file if the input is made with a <CODE>byte</CODE> array
* @param pfb the PFB file if the input is made with a <CODE>byte</CODE> array
* @param afmFile the name of one of the 14 built-in fonts or the location of an AFM file. The file must end in '.afm'
* @param enc the encoding to be applied to this font
* @param emb true if the font is to be embedded in the PDF
* @throws DocumentException the AFM file is invalid
* @throws IOException the AFM file could not be read
*/
internal Type1Font(string afmFile, string enc, bool emb, byte[] ttfAfm, byte[] pfb)
{
if (emb && ttfAfm != null && pfb == null)
{
throw new DocumentException("Two byte arrays are needed if the Type1 font is embedded.");
}
if (emb && ttfAfm != null)
{
this.pfb = pfb;
}
encoding = enc;
embedded = emb;
fileName = afmFile;
FontType = FONT_TYPE_T1;
RandomAccessFileOrArray rf = null;
Stream istr = null;
if (BuiltinFonts14.ContainsKey(afmFile))
{
embedded = false;
builtinFont = true;
byte[] buf = new byte[1024];
try {
istr = getResourceStream(afmFile + ".afm");
if (istr == null)
{
Console.Error.WriteLine(afmFile + " not found as resource.");
throw new DocumentException(afmFile + " not found as resource.");
}
MemoryStream ostr = new MemoryStream();
while (true)
{
int size = istr.Read(buf, 0, buf.Length);
if (size == 0)
{
break;
}
ostr.Write(buf, 0, size);
}
buf = ostr.ToArray();
}
finally {
if (istr != null)
{
try {
istr.Close();
}
catch (Exception e) {
e.GetType();
// empty on purpose
}
}
}
try {
rf = new RandomAccessFileOrArray(buf);
process(rf);
}
finally {
if (rf != null)
{
try {
rf.close();
}
catch (Exception e) {
e.GetType();
// empty on purpose
}
}
}
}
else if (afmFile.ToLower().EndsWith(".afm"))
{
try {
if (ttfAfm == null)
{
rf = new RandomAccessFileOrArray(afmFile);
}
else
{
rf = new RandomAccessFileOrArray(ttfAfm);
}
process(rf);
}
finally {
if (rf != null)
{
try {
rf.close();
}
catch (Exception e) {
e.GetType();
// empty on purpose
}
}
}
}
else
{
throw new DocumentException(afmFile + " is not an AFM font file.");
}
try {
EncodingScheme = EncodingScheme.Trim();
if (EncodingScheme.Equals("AdobeStandardEncoding") || EncodingScheme.Equals("StandardEncoding"))
{
fontSpecific = false;
}
System.Text.Encoding.GetEncoding(enc).GetBytes(" ");
createEncoding();
}
catch (Exception e) {
throw new DocumentException(e.Message);
}
}
