public virtual byte[] CharToByte(String text, String encoding)
{
char[] cc = text.ToCharArray();
byte[] b = new byte[cc.Length];
int ptr = 0;
int len = cc.Length;
for (int k = 0; k < len; ++k)
{
char c = cc[k];
if (c < 128)
{
b[ptr++] = (byte)c;
}
else
{
byte v = (byte)c2b.Get(c);
if (v != 0)
{
b[ptr++] = v;
}
}
}
if (ptr == len)
{
return(b);
}
byte[] b2 = new byte[ptr];
System.Array.Copy(b, 0, b2, 0, ptr);
return(b2);
}
internal static TrueTypeFont CreateFontProgram(PdfDictionary fontDictionary, CMapToUnicode toUnicode)
{
iText.Kernel.Font.DocTrueTypeFont fontProgram = new iText.Kernel.Font.DocTrueTypeFont(fontDictionary);
PdfDictionary fontDescriptor = fontDictionary.GetAsDictionary(PdfName.FontDescriptor);
FillFontDescriptor(fontProgram, fontDescriptor);
int dw = (fontDescriptor != null && fontDescriptor.ContainsKey(PdfName.DW)) ? (int)fontDescriptor.GetAsInt
(PdfName.DW) : 1000;
if (toUnicode != null)
{
IntHashtable widths = FontUtil.ConvertCompositeWidthsArray(fontDictionary.GetAsArray(PdfName.W));
fontProgram.avgWidth = 0;
foreach (int cid in toUnicode.GetCodes())
{
int width = widths.ContainsKey(cid) ? widths.Get(cid) : dw;
Glyph glyph = new Glyph(cid, width, toUnicode.Lookup(cid));
if (glyph.HasValidUnicode())
{
fontProgram.unicodeToGlyph[glyph.GetUnicode()] = glyph;
}
fontProgram.codeToGlyph[cid] = glyph;
fontProgram.avgWidth += width;
}
if (fontProgram.codeToGlyph.Count != 0)
{
fontProgram.avgWidth /= fontProgram.codeToGlyph.Count;
}
}
if (fontProgram.codeToGlyph.Get(0) == null)
{
fontProgram.codeToGlyph[0] = new Glyph(0, dw, -1);
}
return(fontProgram);
}
/// <summary>Gets the kerning between two glyphs.</summary>
/// <param name="first">the first glyph</param>
/// <param name="second">the second glyph</param>
/// <returns>the kerning to be applied</returns>
public override int GetKerning(Glyph first, Glyph second)
{
if (first == null || second == null)
{
return(0);
}
return(kerning.Get((first.GetCode() << 16) + second.GetCode()));
}
private static void FillDifferences(iText.Kernel.Font.DocFontEncoding fontEncoding, PdfArray diffs, CMapToUnicode
toUnicode)
{
IntHashtable byte2uni = toUnicode != null?toUnicode.CreateDirectMapping() : new IntHashtable();
if (diffs != null)
{
int currentNumber = 0;
for (int k = 0; k < diffs.Size(); ++k)
{
PdfObject obj = diffs.Get(k);
if (obj.IsNumber())
{
currentNumber = ((PdfNumber)obj).IntValue();
}
else
{
if (currentNumber > 255)
{
ILog LOGGER = LogManager.GetLogger(typeof(iText.Kernel.Font.DocFontEncoding));
LOGGER.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.DOCFONT_HAS_ILLEGAL_DIFFERENCES, ((PdfName
)obj).GetValue()));
}
else
{
/* don't return or break, because differences subarrays may
* be in any order:
* e.g. [255 /space /one 250 /two /three]
* /one is invalid but all others should be parsed
*/
String glyphName = ((PdfName)obj).GetValue();
int unicode = AdobeGlyphList.NameToUnicode(glyphName);
if (unicode != -1)
{
fontEncoding.codeToUnicode[currentNumber] = (int)unicode;
fontEncoding.unicodeToCode.Put((int)unicode, currentNumber);
fontEncoding.differences[currentNumber] = glyphName;
fontEncoding.unicodeDifferences.Put((int)unicode, (int)unicode);
}
else
{
if (byte2uni.ContainsKey(currentNumber))
{
unicode = byte2uni.Get(currentNumber);
fontEncoding.codeToUnicode[currentNumber] = (int)unicode;
fontEncoding.unicodeToCode.Put((int)unicode, currentNumber);
fontEncoding.differences[currentNumber] = glyphName;
fontEncoding.unicodeDifferences.Put((int)unicode, (int)unicode);
}
}
currentNumber++;
}
}
}
}
}
public virtual int GetCidCode(int cmapCode)
{
if (isDirect)
{
return(cmapCode);
}
else
{
return(code2Cid.Get(cmapCode));
}
}
private static void FillDifferences(iText.Kernel.Font.DocFontEncoding fontEncoding, CMapToUnicode toUnicode
)
{
IntHashtable byte2uni = toUnicode.CreateDirectMapping();
foreach (int?code in byte2uni.GetKeys())
{
int unicode = byte2uni.Get((int)code);
String glyphName = AdobeGlyphList.UnicodeToName(unicode);
fontEncoding.codeToUnicode[(int)code] = unicode;
fontEncoding.unicodeToCode.Put(unicode, (int)code);
fontEncoding.differences[(int)code] = glyphName;
fontEncoding.unicodeDifferences.Put(unicode, unicode);
}
}
private void InitializeCidFontProperties(IDictionary <String, Object> fontDesc)
{
fontIdentification.SetPanose((String)fontDesc.Get("Panose"));
fontMetrics.SetItalicAngle(Convert.ToInt32((String)fontDesc.Get("ItalicAngle"), System.Globalization.CultureInfo.InvariantCulture
));
fontMetrics.SetCapHeight(Convert.ToInt32((String)fontDesc.Get("CapHeight"), System.Globalization.CultureInfo.InvariantCulture
));
fontMetrics.SetTypoAscender(Convert.ToInt32((String)fontDesc.Get("Ascent"), System.Globalization.CultureInfo.InvariantCulture
));
fontMetrics.SetTypoDescender(Convert.ToInt32((String)fontDesc.Get("Descent"), System.Globalization.CultureInfo.InvariantCulture
));
fontMetrics.SetStemV(Convert.ToInt32((String)fontDesc.Get("StemV"), System.Globalization.CultureInfo.InvariantCulture
));
pdfFontFlags = Convert.ToInt32((String)fontDesc.Get("Flags"), System.Globalization.CultureInfo.InvariantCulture
);
String fontBBox = (String)fontDesc.Get("FontBBox");
StringTokenizer tk = new StringTokenizer(fontBBox, " []\r\n\t\f");
int llx = Convert.ToInt32(tk.NextToken(), System.Globalization.CultureInfo.InvariantCulture);
int lly = Convert.ToInt32(tk.NextToken(), System.Globalization.CultureInfo.InvariantCulture);
int urx = Convert.ToInt32(tk.NextToken(), System.Globalization.CultureInfo.InvariantCulture);
int ury = Convert.ToInt32(tk.NextToken(), System.Globalization.CultureInfo.InvariantCulture);
fontMetrics.UpdateBbox(llx, lly, urx, ury);
registry = (String)fontDesc.Get("Registry");
String uniMap = GetCompatibleUniMap(registry);
if (uniMap != null)
{
IntHashtable metrics = (IntHashtable)fontDesc.Get("W");
CMapCidUni cid2Uni = FontCache.GetCid2UniCmap(uniMap);
avgWidth = 0;
foreach (int cid in cid2Uni.GetCids())
{
int uni = cid2Uni.Lookup(cid);
int width = metrics.ContainsKey(cid) ? metrics.Get(cid) : DEFAULT_WIDTH;
Glyph glyph = new Glyph(cid, width, uni);
avgWidth += glyph.GetWidth();
codeToGlyph.Put(cid, glyph);
unicodeToGlyph.Put(uni, glyph);
}
FixSpaceIssue();
if (codeToGlyph.Count != 0)
{
avgWidth /= codeToGlyph.Count;
}
}
}
public override bool TransformOne(GlyphLine line) {
if (line.idx >= line.end) {
return false;
}
Glyph g = line.Get(line.idx);
bool changed = false;
if (!openReader.IsSkip(g.GetCode(), lookupFlag)) {
int substCode = substMap.Get(g.GetCode());
// there is no need to substitute a symbol with itself
if (substCode != 0 && substCode != g.GetCode()) {
line.SubstituteOneToOne(openReader, substCode);
changed = true;
}
}
line.idx++;
return changed;
}
/// <summary>
/// Converts a
/// <c>String</c>
/// to a
/// <c>byte</c>
/// array according
/// to the font's encoding.
/// </summary>
/// <param name="encoding">the encoding</param>
/// <param name="ch">
/// the
/// <c>char</c>
/// to be converted
/// </param>
/// <returns>
/// an array of
/// <c>byte</c>
/// representing the conversion according to the font's encoding
/// </returns>
public static byte[] ConvertToBytes(char ch, String encoding)
{
if (encoding == null || encoding.Length == 0)
{
return(new byte[] { (byte)ch });
}
IntHashtable hash = null;
if (encoding.Equals(WINANSI))
{
hash = winansi;
}
else
{
if (encoding.Equals(PDF_DOC_ENCODING))
{
hash = pdfEncoding;
}
}
if (hash != null)
{
int c;
if (ch < 128 || ch > 160 && ch <= 255)
{
c = ch;
}
else
{
c = hash.Get((int)ch);
}
if (c != 0)
{
return(new byte[] { (byte)c });
}
else
{
return(new byte[0]);
}
}
try {
return(EncodingUtil.ConvertToBytes(new char[] { ch }, encoding));
}
catch (System.IO.IOException e) {
throw new iText.IO.IOException(iText.IO.IOException.PdfEncodings, e);
}
}
private static void FillDifferences(iText.Kernel.Font.DocFontEncoding fontEncoding, PdfArray diffs, CMapToUnicode
toUnicode)
{
IntHashtable byte2uni = toUnicode != null?toUnicode.CreateDirectMapping() : new IntHashtable();
if (diffs != null)
{
int currentNumber = 0;
for (int k = 0; k < diffs.Size(); ++k)
{
PdfObject obj = diffs.Get(k);
if (obj.IsNumber())
{
currentNumber = ((PdfNumber)obj).IntValue();
}
else
{
String glyphName = ((PdfName)obj).GetValue();
int unicode = (int)AdobeGlyphList.NameToUnicode(glyphName);
if (unicode != -1)
{
fontEncoding.codeToUnicode[currentNumber] = (int)unicode;
fontEncoding.unicodeToCode.Put((int)unicode, currentNumber);
fontEncoding.differences[currentNumber] = glyphName;
fontEncoding.unicodeDifferences.Put((int)unicode, (int)unicode);
}
else
{
if (byte2uni.Contains(currentNumber))
{
unicode = byte2uni.Get(currentNumber);
fontEncoding.codeToUnicode[currentNumber] = (int)unicode;
fontEncoding.unicodeToCode.Put((int)unicode, currentNumber);
fontEncoding.differences[currentNumber] = glyphName;
fontEncoding.unicodeDifferences.Put((int)unicode, (int)unicode);
}
}
currentNumber++;
}
}
}
}
public override bool TransformOne(GlyphLine line)
{
if (line.idx >= line.end)
{
return(false);
}
Glyph g = line.Get(line.idx);
bool changed = false;
if (!openReader.IsSkip(g.GetCode(), lookupFlag))
{
int substCode = substMap.Get(g.GetCode());
if (substCode != 0)
{
line.SubstituteOneToOne(openReader, substCode);
changed = true;
}
}
line.idx++;
return(changed);
}
public virtual int GetOtfClass(int glyph)
{
return(mapClass.Get(glyph));
}
/// <summary>
/// Converts a unicode symbol or font specific code
/// to
/// <c>byte</c>
/// according to the encoding.
/// </summary>
/// <param name="unicode">a unicode symbol or FontSpecif code to be converted.</param>
/// <returns>
/// a
/// <c>byte</c>
/// representing the conversion according to the encoding
/// </returns>
public virtual int ConvertToByte(int unicode)
{
return(unicodeToCode.Get(unicode));
}
/// <summary>
/// Converts a
/// <c>String</c>
/// to a
/// <c>byte</c>
/// array according
/// to the font's encoding.
/// </summary>
/// <param name="encoding">the encoding</param>
/// <param name="text">
/// the
/// <c>String</c>
/// to be converted
/// </param>
/// <returns>
/// an array of
/// <c>byte</c>
/// representing the conversion according to the font's encoding
/// </returns>
public static byte[] ConvertToBytes(String text, String encoding)
{
if (text == null)
{
return(new byte[0]);
}
if (encoding == null || encoding.Length == 0)
{
int len = text.Length;
byte[] b = new byte[len];
for (int k = 0; k < len; ++k)
{
b[k] = (byte)text[k];
}
return(b);
}
IExtraEncoding extra = extraEncodings.Get(encoding.ToLower(System.Globalization.CultureInfo.InvariantCulture
));
if (extra != null)
{
byte[] b = extra.CharToByte(text, encoding);
if (b != null)
{
return(b);
}
}
IntHashtable hash = null;
if (encoding.Equals(WINANSI))
{
hash = winansi;
}
else
{
if (encoding.Equals(PDF_DOC_ENCODING))
{
hash = pdfEncoding;
}
}
if (hash != null)
{
char[] cc = text.ToCharArray();
int len = cc.Length;
int ptr = 0;
byte[] b = new byte[len];
int c;
for (int k = 0; k < len; ++k)
{
char ch = cc[k];
if (ch < 128 || ch > 160 && ch <= 255)
{
c = ch;
}
else
{
c = hash.Get((int)ch);
}
if (c != 0)
{
b[ptr++] = (byte)c;
}
}
if (ptr == len)
{
return(b);
}
byte[] b2 = new byte[ptr];
System.Array.Copy(b, 0, b2, 0, ptr);
return(b2);
}
try {
return(EncodingUtil.ConvertToBytes(text.ToCharArray(), encoding));
}
catch (System.IO.IOException e) {
throw new iText.IO.IOException(iText.IO.IOException.PdfEncodings, e);
}
}
public virtual int Lookup(int character)
{
return(map.Get(character));
}
public virtual int GetUnicodeDifference(int index)
{
return(unicodeDifferences.Get(index));
}
private void SerObject(PdfObject obj, int level, ByteBufferOutputStream bb, IntHashtable serialized)
{
if (level <= 0)
{
return;
}
if (obj == null)
{
bb.Append("$Lnull");
return;
}
PdfIndirectReference reference = null;
ByteBufferOutputStream savedBb = null;
if (obj.IsIndirectReference())
{
reference = (PdfIndirectReference)obj;
int key = GetCopyObjectKey(obj);
if (serialized.ContainsKey(key))
{
bb.Append((int)serialized.Get(key));
return;
}
else
{
savedBb = bb;
bb = new ByteBufferOutputStream();
}
}
if (obj.IsStream())
{
bb.Append("$B");
SerDic((PdfDictionary)obj, level - 1, bb, serialized);
if (level > 0)
{
md5.Reset();
bb.Append(md5.Digest(((PdfStream)obj).GetBytes(false)));
}
}
else
{
if (obj.IsDictionary())
{
SerDic((PdfDictionary)obj, level - 1, bb, serialized);
}
else
{
if (obj.IsArray())
{
SerArray((PdfArray)obj, level - 1, bb, serialized);
}
else
{
if (obj.IsString())
{
bb.Append("$S").Append(obj.ToString());
}
else
{
if (obj.IsName())
{
bb.Append("$N").Append(obj.ToString());
}
else
{
bb.Append("$L").Append(obj.ToString());
}
}
}
}
}
if (savedBb != null)
{
int key = GetCopyObjectKey(reference);
if (!serialized.ContainsKey(key))
{
serialized.Put(key, CalculateHash(bb.GetBuffer()));
}
savedBb.Append(bb);
}
}
