protected void ReadPrivate(BinaryReaderFont reader)
{
long start = reader.Position;
//Console.WriteLine("private dict: {0}", topDict.Private);
privateDict = CFFPrivateDict.Read(reader, (int)topDict.Private.values[0]);
//Console.WriteLine("private dict: {0}", privateDict);
//reader.Position = position + (int)topDict.Private.values[1];
//CFFIndex index = CFFIndex.Read(reader);
//int[] offset = index.offset;
//Console.WriteLine("local subr index: {0}", index);
if (privateDict.Subrs > 0)
{
reader.Position = start + (int)privateDict.Subrs;
CFFIndex index = CFFIndex.Read(reader);
int[] offset = index.ReadAllOffsets(reader);
//Console.WriteLine("local subr index: {0}", index);
localSubr = new byte[index.count][];
for (int i = 0; i < offset.Length - 1; i++)
{
int length = offset[i + 1] - offset[i];
localSubr[i] = reader.ReadBytes(length);
}
}
charString.localSubr = localSubr;
}
protected void ReadTopDict(BinaryReaderFont reader)
{
CFFIndex index = CFFIndex.Read(reader);
//Console.WriteLine("topDict: {0}", index);
int[] offset = index.ReadAllOffsets(reader);
int length = offset[1] - offset[0];
topDict = CFFTopDict.Read(reader, length);
}
protected void ReadName(BinaryReaderFont reader)
{
CFFIndex index = CFFIndex.Read(reader);
int[] offset = index.ReadAllOffsets(reader);
names = new string[index.count];
int length = offset.Length - 1;
for (int i = 0; i < length; i++)
{
int byteSize = offset[i + 1] - offset[i];
names[i] = reader.ReadString(byteSize);
}
}
protected void ReadGlobalSubr(BinaryReaderFont reader)
{
CFFIndex index = CFFIndex.Read(reader);
int[] offset = index.ReadAllOffsets(reader);
//Console.WriteLine("global subr index: {0}", index);
globalSubr = new byte[index.count][];
int length = offset.Length - 1;
for (int i = 0; i < length; i++)
{
int byteSize = offset[i + 1] - offset[i];
globalSubr[i] = reader.ReadBytes(byteSize);
}
charString.globalSubr = globalSubr;
}
protected void ReadString(BinaryReaderFont reader)
{
CFFIndex index = CFFIndex.Read(reader);
int[] offset = index.ReadAllOffsets(reader);
//Console.WriteLine("string index: {0}", index);
strings = new string[index.count];
int length = offset.Length - 1;
for (int i = 0; i < length; i++)
{
int byteSize = offset[i + 1] - offset[i];
//value.strings[i] = value.ConvertString(reader.ReadBytes(length));
strings[i] = reader.ReadString(byteSize);
}
}
public static CFFIndex Read(BinaryReaderFont reader)
{
CFFIndex value = new CFFIndex();
value.count = reader.ReadUInt16();
if (value.count == 0)
{
//value.offset = new int[0];
return(value);
}
value.offSize = reader.ReadByte();
value.position = reader.Position;
/*
* switch (value.offSize) {
* case 1:
* value.offset = Array.ConvertAll(
* reader.ReadBytes(value.count + 1),
* new Converter<byte, int>((a) => {
* return a;
* })
* );
* break;
* case 2:
* value.offset = Array.ConvertAll(
* reader.ReadUInt16Array(value.count + 1),
* new Converter<ushort, int>((a) => {
* return a;
* })
* );
* break;
* case 3:
* value.offset = reader.ReadUInt24Array(value.count + 1);
* break;
* case 4:
* value.offset = reader.ReadInt32Array(value.count + 1);
* break;
* }
*/
//value.offset = reader.ReadBytes(value.offSize + 1);
//for (int i = 0; i < value.offset.Length; i += 2) {
// int length = value.offset[i + 1] - value.offset[i];
// value.data = reader.ReadBytes(length);
//}
return(value);
}
public GraphicsPath GetGlyph(int glyphId, bool hasWidth)
{
if (glyphId < 0)
{
return(null);
}
if (File.Exists(filePath) == false)
{
return(null);
}
byte[] cs = null;
using (Stream stream = File.OpenRead(filePath))
using (BinaryReaderFont reader = new BinaryReaderFont(stream)) {
reader.Position = position + topDict.CharStrings;
CFFIndex index = CFFIndex.Read(reader);
//Console.WriteLine("CharStrings index: {0}", index);
long offsetStart = reader.Position;
int offset0 = 0;
int offset1 = 0;
index.ReadOffset(reader, glyphId, out offset0, out offset1);
int byteSize = offset1 - offset0;
if (byteSize <= 0)
{
return(null);
}
//Console.WriteLine("offset0: {0}, {1}", offset0, offset1);
//Console.WriteLine("lastItem: {0}", offsetStart);
offsetStart += (index.count + 1) * index.offSize;
//Console.WriteLine("lastItem: {0}", offsetStart);
reader.Position = offsetStart + offset0 - 1;
cs = reader.ReadBytes(byteSize);
}
if (cs == null)
{
return(null);
}
//Console.WriteLine("Docode: {0}", CFFCharString.Decode(charString));
return(charString.CreateGlyph(cs, hasWidth));
}
