/// <summary>
/// read only name entry
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public PreviewFontInfo ReadPreview(Stream stream)
{
var little = BitConverter.IsLittleEndian;
using (var input = new ByteOrderSwappingBinaryReader(stream))
{
ushort majorVersion = input.ReadUInt16();
ushort minorVersion = input.ReadUInt16();
ushort tableCount = input.ReadUInt16();
ushort searchRange = input.ReadUInt16();
ushort entrySelector = input.ReadUInt16();
ushort rangeShift = input.ReadUInt16();
var tables = new TableEntryCollection();
for (int i = 0; i < tableCount; i++)
{
tables.AddEntry(new UnreadTableEntry(ReadTableHeader(input)));
}
NameEntry nameEntry = ReadTableIfExists(tables, input, new NameEntry());
OS2Table os2Table = ReadTableIfExists(tables, input, new OS2Table());
return(new PreviewFontInfo(
nameEntry.FontName,
nameEntry.FontSubFamily,
Extensions.TypefaceExtensions.TranslatedOS2FontStyle(os2Table)
));
}
}
public Typeface Read(Stream stream, int streamStartOffset = 0, ReadFlags readFlags = ReadFlags.Full)
{
//bool little = BitConverter.IsLittleEndian;
if (streamStartOffset > 0)
{
//eg. for ttc
stream.Seek(streamStartOffset, SeekOrigin.Begin);
}
using (var input = new ByteOrderSwappingBinaryReader(stream))
{
ushort majorVersion = input.ReadUInt16();
ushort minorVersion = input.ReadUInt16();
if (KnownFontFiles.IsTtcf(majorVersion, minorVersion))
{
//this font stream is 'The Font Collection'
//To read content of ttc=> one must specific the offset
//so use read preview first=> you will know that what are inside the ttc.
return(null);
}
else if (KnownFontFiles.IsWoff(majorVersion, minorVersion))
{
//check if we enable woff or not
WebFont.WoffReader woffReader = new WebFont.WoffReader();
input.BaseStream.Position = 0;
return(woffReader.Read(input));
}
else if (KnownFontFiles.IsWoff2(majorVersion, minorVersion))
{
//check if we enable woff2 or not
WebFont.Woff2Reader woffReader = new WebFont.Woff2Reader();
input.BaseStream.Position = 0;
return(woffReader.Read(input));
}
//-----------------------------------------------------------------
ushort tableCount = input.ReadUInt16();
ushort searchRange = input.ReadUInt16();
ushort entrySelector = input.ReadUInt16();
ushort rangeShift = input.ReadUInt16();
//------------------------------------------------------------------
var tables = new TableEntryCollection();
for (int i = 0; i < tableCount; i++)
{
tables.AddEntry(new UnreadTableEntry(ReadTableHeader(input)));
}
//------------------------------------------------------------------
return(ReadTableEntryCollection(tables, input));
}
}
static TableEntryCollection CreateTableEntryCollection(WoffTableDirectory[] woffTableDirs)
{
TableEntryCollection tableEntryCollection = new TableEntryCollection();
for (int i = 0; i < woffTableDirs.Length; ++i)
{
WoffTableDirectory woffTableDir = woffTableDirs[i];
tableEntryCollection.AddEntry(
new UnreadTableEntry(
new TableHeader(woffTableDir.tag,
woffTableDir.origChecksum,
(uint)woffTableDir.ExpectedStartAt,
woffTableDir.origLength)));
}
return(tableEntryCollection);
}
PreviewFontInfo ReadActualFontPreview(ByteOrderSwappingBinaryReader input, bool skipVersionData)
{
if (!skipVersionData)
{
ushort majorVersion = input.ReadUInt16();
ushort minorVersion = input.ReadUInt16();
}
ushort tableCount = input.ReadUInt16();
ushort searchRange = input.ReadUInt16();
ushort entrySelector = input.ReadUInt16();
ushort rangeShift = input.ReadUInt16();
var tables = new TableEntryCollection();
for (int i = 0; i < tableCount; i++)
{
tables.AddEntry(new UnreadTableEntry(ReadTableHeader(input)));
}
return(ReadPreviewFontInfo(tables, input));
}
/// <summary>
/// read only name entry
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public InstalledFont ReadPreview(Stream stream)
{
var little = BitConverter.IsLittleEndian;
using (var input = new ByteOrderSwappingBinaryReader(stream))
{
ushort majorVersion = input.ReadUInt16();
ushort minorVersion = input.ReadUInt16();
ushort tableCount = input.ReadUInt16();
ushort searchRange = input.ReadUInt16();
ushort entrySelector = input.ReadUInt16();
ushort rangeShift = input.ReadUInt16();
var tables = new TableEntryCollection();
for (int i = 0; i < tableCount; i++)
{
tables.AddEntry(new UnreadTableEntry(ReadTableHeader(input)));
}
//translate...
NameEntry nameEntry = ReadTableIfExists(tables, input, new NameEntry());
return(new InstalledFont(nameEntry.FontName, nameEntry.FontSubFamily));
}
}
public TtfTypeface Read(Stream stream, ReadFlags readFlags = ReadFlags.Full)
{
var little = BitConverter.IsLittleEndian;
using (var input = new ByteOrderSwappingBinaryReader(stream))
{
ushort majorVersion = input.ReadUInt16();
ushort minorVersion = input.ReadUInt16();
ushort tableCount = input.ReadUInt16();
ushort searchRange = input.ReadUInt16();
ushort entrySelector = input.ReadUInt16();
ushort rangeShift = input.ReadUInt16();
var tables = new TableEntryCollection();
for (int i = 0; i < tableCount; i++)
{
tables.AddEntry(new UnreadTableEntry(ReadTableHeader(input)));
}
//------------------------------------------------------------------
OS2Table os2Table = ReadTableIfExists(tables, input, new OS2Table());
NameEntry nameEntry = ReadTableIfExists(tables, input, new NameEntry());
Head header = ReadTableIfExists(tables, input, new Head());
MaxProfile maximumProfile = ReadTableIfExists(tables, input, new MaxProfile());
HorizontalHeader horizontalHeader = ReadTableIfExists(tables, input, new HorizontalHeader());
HorizontalMetrics horizontalMetrics = ReadTableIfExists(tables, input, new HorizontalMetrics(horizontalHeader.HorizontalMetricsCount, maximumProfile.GlyphCount));
//--------------
Cmap cmaps = ReadTableIfExists(tables, input, new Cmap());
GlyphLocations glyphLocations = ReadTableIfExists(tables, input, new GlyphLocations(maximumProfile.GlyphCount, header.WideGlyphLocations));
Glyf glyf = ReadTableIfExists(tables, input, new Glyf(glyphLocations));
//--------------
Gasp gaspTable = ReadTableIfExists(tables, input, new Gasp());
VerticalDeviceMetrics vdmx = ReadTableIfExists(tables, input, new VerticalDeviceMetrics());
//--------------
PostTable postTable = ReadTableIfExists(tables, input, new PostTable());
Kern kern = ReadTableIfExists(tables, input, new Kern());
//--------------
//advanced typography
GDEF gdef = ReadTableIfExists(tables, input, new GDEF());
GSUB gsub = ReadTableIfExists(tables, input, new GSUB());
GPOS gpos = ReadTableIfExists(tables, input, new GPOS());
BASE baseTable = ReadTableIfExists(tables, input, new BASE());
COLR colr = ReadTableIfExists(tables, input, new COLR());
CPAL cpal = ReadTableIfExists(tables, input, new CPAL());
VerticalHeader vhea = ReadTableIfExists(tables, input, new VerticalHeader());
if (vhea != null)
{
VerticalMatric vmtx = ReadTableIfExists(tables, input, new VerticalMatric(vhea.NumOfLongVerMetrics));
}
EBLCTable fontBmpTable = ReadTableIfExists(tables, input, new EBLCTable());
//---------------------------------------------
//about truetype instruction init
//---------------------------------------------
var typeface = new TtfTypeface(
nameEntry,
header.Bounds,
header.UnitsPerEm,
glyf.Glyphs,
horizontalMetrics,
os2Table);
//----------------------------
typeface.CmapTable = cmaps;
typeface.KernTable = kern;
typeface.GaspTable = gaspTable;
typeface.MaxProfile = maximumProfile;
typeface.HheaTable = horizontalHeader;
//----------------------------
FpgmTable fpgmTable = ReadTableIfExists(tables, input, new FpgmTable());
//control values table
CvtTable cvtTable = ReadTableIfExists(tables, input, new CvtTable());
if (cvtTable != null)
{
typeface.ControlValues = cvtTable.controlValues;
}
if (fpgmTable != null)
{
typeface.FpgmProgramBuffer = fpgmTable.programBuffer;
}
PrepTable propProgramTable = ReadTableIfExists(tables, input, new PrepTable());
if (propProgramTable != null)
{
typeface.PrepProgramBuffer = propProgramTable.programBuffer;
}
//-------------------------
typeface.LoadOpenFontLayoutInfo(
gdef,
gsub,
gpos,
baseTable,
colr,
cpal);
return(typeface);
}
}
public Typeface Read(Stream stream, ReadFlags readFlags = ReadFlags.Full)
{
bool little = BitConverter.IsLittleEndian;
using (var input = new ByteOrderSwappingBinaryReader(stream))
{
ushort majorVersion = input.ReadUInt16();
ushort minorVersion = input.ReadUInt16();
ushort tableCount = input.ReadUInt16();
ushort searchRange = input.ReadUInt16();
ushort entrySelector = input.ReadUInt16();
ushort rangeShift = input.ReadUInt16();
var tables = new TableEntryCollection();
for (int i = 0; i < tableCount; i++)
{
tables.AddEntry(new UnreadTableEntry(ReadTableHeader(input)));
}
//------------------------------------------------------------------
OS2Table os2Table = ReadTableIfExists(tables, input, new OS2Table());
NameEntry nameEntry = ReadTableIfExists(tables, input, new NameEntry());
Head header = ReadTableIfExists(tables, input, new Head());
MaxProfile maximumProfile = ReadTableIfExists(tables, input, new MaxProfile());
HorizontalHeader horizontalHeader = ReadTableIfExists(tables, input, new HorizontalHeader());
HorizontalMetrics horizontalMetrics = ReadTableIfExists(tables, input, new HorizontalMetrics(horizontalHeader.HorizontalMetricsCount, maximumProfile.GlyphCount));
//---
PostTable postTable = ReadTableIfExists(tables, input, new PostTable());
CFFTable ccf = ReadTableIfExists(tables, input, new CFFTable());
//--------------
Cmap cmaps = ReadTableIfExists(tables, input, new Cmap());
GlyphLocations glyphLocations = ReadTableIfExists(tables, input, new GlyphLocations(maximumProfile.GlyphCount, header.WideGlyphLocations));
Glyf glyf = ReadTableIfExists(tables, input, new Glyf(glyphLocations));
//--------------
Gasp gaspTable = ReadTableIfExists(tables, input, new Gasp());
VerticalDeviceMetrics vdmx = ReadTableIfExists(tables, input, new VerticalDeviceMetrics());
//--------------
Kern kern = ReadTableIfExists(tables, input, new Kern());
//--------------
//advanced typography
GDEF gdef = ReadTableIfExists(tables, input, new GDEF());
GSUB gsub = ReadTableIfExists(tables, input, new GSUB());
GPOS gpos = ReadTableIfExists(tables, input, new GPOS());
BASE baseTable = ReadTableIfExists(tables, input, new BASE());
COLR colr = ReadTableIfExists(tables, input, new COLR());
CPAL cpal = ReadTableIfExists(tables, input, new CPAL());
VerticalHeader vhea = ReadTableIfExists(tables, input, new VerticalHeader());
if (vhea != null)
{
VerticalMetrics vmtx = ReadTableIfExists(tables, input, new VerticalMetrics(vhea.NumOfLongVerMetrics));
}
//test math table
MathTable mathtable = ReadTableIfExists(tables, input, new MathTable());
EBLCTable fontBmpTable = ReadTableIfExists(tables, input, new EBLCTable());
//---------------------------------------------
//about truetype instruction init
//---------------------------------------------
Typeface typeface = null;
bool isPostScriptOutline = false;
if (glyf == null)
{
//check if this is cff table ?
if (ccf == null)
{
//TODO: review here
throw new NotSupportedException();
}
//...
//PostScript outline font
isPostScriptOutline = true;
typeface = new Typeface(
nameEntry,
header.Bounds,
header.UnitsPerEm,
ccf,
horizontalMetrics,
os2Table);
}
else
{
typeface = new Typeface(
nameEntry,
header.Bounds,
header.UnitsPerEm,
glyf.Glyphs,
horizontalMetrics,
os2Table);
}
//----------------------------
typeface.CmapTable = cmaps;
typeface.KernTable = kern;
typeface.GaspTable = gaspTable;
typeface.MaxProfile = maximumProfile;
typeface.HheaTable = horizontalHeader;
//----------------------------
if (!isPostScriptOutline)
{
FpgmTable fpgmTable = ReadTableIfExists(tables, input, new FpgmTable());
//control values table
CvtTable cvtTable = ReadTableIfExists(tables, input, new CvtTable());
if (cvtTable != null)
{
typeface.ControlValues = cvtTable.controlValues;
}
if (fpgmTable != null)
{
typeface.FpgmProgramBuffer = fpgmTable.programBuffer;
}
PrepTable propProgramTable = ReadTableIfExists(tables, input, new PrepTable());
if (propProgramTable != null)
{
typeface.PrepProgramBuffer = propProgramTable.programBuffer;
}
}
//-------------------------
typeface.LoadOpenFontLayoutInfo(
gdef,
gsub,
gpos,
baseTable,
colr,
cpal);
//------------
//test
{
SvgTable svgTable = ReadTableIfExists(tables, input, new SvgTable());
if (svgTable != null)
{
typeface._svgTable = svgTable;
}
}
typeface.PostTable = postTable;
if (mathtable != null)
{
var mathGlyphLoader = new MathGlyphLoader();
mathGlyphLoader.LoadMathGlyph(typeface, mathtable);
}
#if DEBUG
//test
int found = typeface.GetGlyphIndexByName("Uacute");
if (typeface.IsCffFont)
{
//optional
typeface.UpdateAllCffGlyphBounds();
}
#endif
return(typeface);
}
}