private void InitFontSize()
{
String mainTag = raf.ReadString(4, PdfEncodings.WINANSI);
if (!mainTag.Equals("ttcf"))
{
throw new iText.IO.IOException(iText.IO.IOException.InvalidTtcFile);
}
raf.SkipBytes(4);
TTCSize = raf.ReadInt();
}
private int ReadInt(RandomAccessFileOrArray stream)
{
if (isBigEndian)
{
return(stream.ReadInt());
}
else
{
return(stream.ReadIntLE());
}
}
internal virtual void ReadSegment(Jbig2SegmentReader.Jbig2Segment s)
{
int ptr = (int)ra.GetPosition();
if (s.dataLength == unchecked ((long)(0xffffffffl)))
{
// TODO figure this bit out, 7.2.7
return;
}
byte[] data = new byte[(int)s.dataLength];
ra.Read(data);
s.data = data;
if (s.type == PAGE_INFORMATION)
{
int last = (int)ra.GetPosition();
ra.Seek(ptr);
int page_bitmap_width = ra.ReadInt();
int page_bitmap_height = ra.ReadInt();
ra.Seek(last);
Jbig2SegmentReader.Jbig2Page p = pages.Get(s.page);
if (p == null)
{
throw new iText.IO.IOException("Referring to widht or height of a page we haven't seen yet: {0}").SetMessageParams
(s.page);
}
p.pageBitmapWidth = page_bitmap_width;
p.pageBitmapHeight = page_bitmap_height;
}
}
void ReadSegment(JBIG2Segment s)
{
int ptr = ra.FilePointer;
if (s.dataLength == 0xffffffffL)
{
// TODO figure this bit out, 7.2.7
return;
}
byte[] data = new byte[(int)s.dataLength];
ra.Read(data);
s.data = data;
if (s.type == PAGE_INFORMATION)
{
int last = ra.FilePointer;
ra.Seek(ptr);
int page_bitmap_width = ra.ReadInt();
int page_bitmap_height = ra.ReadInt();
ra.Seek(last);
JBIG2Page p = pages[s.page];
if (p == null)
{
throw new InvalidOperationException(MessageLocalization.GetComposedMessage("referring.to.widht.height.of.page.we.havent.seen.yet.1", s.page));
}
p.pageBitmapWidth = page_bitmap_width;
p.pageBitmapHeight = page_bitmap_height;
}
}
void ReadSegment(JBIG2Segment s)
{
int ptr = ra.FilePointer;
if (s.dataLength == 0xffffffffL)
{
// TODO figure this bit out, 7.2.7
return;
}
byte[] data = new byte[(int)s.dataLength];
ra.Read(data);
s.data = data;
if (s.type == PAGE_INFORMATION)
{
int last = ra.FilePointer;
ra.Seek(ptr);
int page_bitmap_width = ra.ReadInt();
int page_bitmap_height = ra.ReadInt();
ra.Seek(last);
JBIG2Page p = (JBIG2Page)pages[s.page];
if (p == null)
{
throw new InvalidOperationException("referring to widht/height of page we havent seen yet? " + s.page);
}
p.pageBitmapWidth = page_bitmap_width;
p.pageBitmapHeight = page_bitmap_height;
}
}
/// <exception cref="System.IO.IOException"/>
protected internal virtual void CreateTableDirectory()
{
tableDirectory = new Dictionary <String, int[]>();
rf.Seek(directoryOffset);
int id = rf.ReadInt();
if (id != 0x00010000)
{
throw new iText.IO.IOException(iText.IO.IOException.NotAtTrueTypeFile).SetMessageParams(fileName);
}
int num_tables = rf.ReadUnsignedShort();
rf.SkipBytes(6);
for (int k = 0; k < num_tables; ++k)
{
String tag = ReadStandardString(4);
int[] tableLocation = new int[3];
tableLocation[TABLE_CHECKSUM] = rf.ReadInt();
tableLocation[TABLE_OFFSET] = rf.ReadInt();
tableLocation[TABLE_LENGTH] = rf.ReadInt();
tableDirectory.Put(tag, tableLocation);
}
}
/// <summary>This is the starting point of the class.</summary>
/// <remarks>
/// This is the starting point of the class. A sub-class must call this
/// method to start getting call backs to the
/// <see cref="ReadLookupTable(int, int, int[])"/>
/// method.
/// </remarks>
/// <exception cref="FontReadingException"/>
/// <exception cref="iText.IO.Font.Otf.FontReadingException"/>
internal void StartReadingTable()
{
try {
rf.Seek(tableLocation);
/*int version =*/
rf.ReadInt();
//version not used
int scriptListOffset = rf.ReadUnsignedShort();
int featureListOffset = rf.ReadUnsignedShort();
int lookupListOffset = rf.ReadUnsignedShort();
// read the Script tables
scriptsType = new OpenTypeScript(this, tableLocation + scriptListOffset);
// read Feature table
featuresType = new OpenTypeFeature(this, tableLocation + featureListOffset);
// read LookUpList table
ReadLookupListTable(tableLocation + lookupListOffset);
}
catch (System.IO.IOException e) {
throw new FontReadingException("Error reading font file", e);
}
}
private void InitializeSfntTables()
{
tables = new LinkedDictionary <String, int[]>();
if (ttcIndex >= 0)
{
int dirIdx = ttcIndex;
if (dirIdx < 0)
{
if (fileName != null)
{
throw new iText.IO.IOException("The font index for {0} must be positive.").SetMessageParams(fileName);
}
else
{
throw new iText.IO.IOException("The font index must be positive.");
}
}
String mainTag = ReadStandardString(4);
if (!mainTag.Equals("ttcf"))
{
if (fileName != null)
{
throw new iText.IO.IOException("{0} is not a valid ttc file.").SetMessageParams(fileName);
}
else
{
throw new iText.IO.IOException("Not a valid ttc file.");
}
}
raf.SkipBytes(4);
int dirCount = raf.ReadInt();
if (dirIdx >= dirCount)
{
if (fileName != null)
{
throw new iText.IO.IOException("The font index for {0} must be between 0 and {1}. It is {2}.").SetMessageParams
(fileName, dirCount - 1, dirIdx);
}
else
{
throw new iText.IO.IOException("The font index must be between 0 and {0}. It is {1}.").SetMessageParams(dirCount
- 1, dirIdx);
}
}
raf.SkipBytes(dirIdx * 4);
directoryOffset = raf.ReadInt();
}
raf.Seek(directoryOffset);
int ttId = raf.ReadInt();
if (ttId != 0x00010000 && ttId != 0x4F54544F)
{
if (fileName != null)
{
throw new iText.IO.IOException("{0} is not a valid ttf or otf file.").SetMessageParams(fileName);
}
else
{
throw new iText.IO.IOException("Not a valid ttf or otf file.");
}
}
int num_tables = raf.ReadUnsignedShort();
raf.SkipBytes(6);
for (int k = 0; k < num_tables; ++k)
{
String tag = ReadStandardString(4);
raf.SkipBytes(4);
int[] table_location = new int[2];
table_location[0] = raf.ReadInt();
table_location[1] = raf.ReadInt();
tables.Put(tag, table_location);
}
}
/// <summary>Reads the font data.</summary>
/// <exception cref="System.IO.IOException"/>
protected internal virtual void Process()
{
tables = new LinkedDictionary <String, int[]>();
if (ttcIndex >= 0)
{
int dirIdx = ttcIndex;
if (dirIdx < 0)
{
if (fileName != null)
{
throw new iText.IO.IOException("the.font.index.for.1.must.be.positive").SetMessageParams(fileName);
}
else
{
throw new iText.IO.IOException("the.font.index.must.be.positive");
}
}
String mainTag = ReadStandardString(4);
if (!mainTag.Equals("ttcf"))
{
if (fileName != null)
{
throw new iText.IO.IOException("1.is.not.a.valid.ttc.file").SetMessageParams(fileName);
}
else
{
throw new iText.IO.IOException("not.a.valid.ttc.file");
}
}
raf.SkipBytes(4);
int dirCount = raf.ReadInt();
if (dirIdx >= dirCount)
{
if (fileName != null)
{
throw new iText.IO.IOException("the.font.index.for.1.must.be.between.0.and.2.it.was.3").SetMessageParams(fileName
, dirCount - 1, dirIdx);
}
else
{
throw new iText.IO.IOException("the.font.index.must.be.between.0.and.1.it.was.2").SetMessageParams(dirCount
- 1, dirIdx);
}
}
raf.SkipBytes(dirIdx * 4);
directoryOffset = raf.ReadInt();
}
raf.Seek(directoryOffset);
int ttId = raf.ReadInt();
if (ttId != 0x00010000 && ttId != 0x4F54544F)
{
if (fileName != null)
{
throw new iText.IO.IOException("1.is.not.a.valid.ttf.or.otf.file").SetMessageParams(fileName);
}
else
{
throw new iText.IO.IOException("not.a.valid.ttf.or.otf.file");
}
}
int num_tables = raf.ReadUnsignedShort();
raf.SkipBytes(6);
for (int k = 0; k < num_tables; ++k)
{
String tag = ReadStandardString(4);
raf.SkipBytes(4);
int[] table_location = new int[2];
table_location[0] = raf.ReadInt();
table_location[1] = raf.ReadInt();
tables[tag] = table_location;
}
CheckCff();
ReadHheaTable();
ReadNameTable();
ReadHeadTable();
ReadOs_2Table();
ReadPostTable();
ReadGlyphWidths();
ReadCmapTable();
}
