internal Typeface(
NameEntry nameEntry,
Bounds bounds,
ushort unitsPerEm,
BitmapFontGlyphSource bitmapFontGlyphSource,
Glyph[] glyphs,
HorizontalMetrics horizontalMetrics,
OS2Table os2Table)
{
_nameEntry = nameEntry;
_bounds = bounds;
_unitsPerEm = unitsPerEm;
_bitmapFontGlyphSource = bitmapFontGlyphSource;
_horizontalMetrics = horizontalMetrics;
OS2Table = os2Table;
_glyphs = glyphs;
}
internal Typeface ReadTableEntryCollection(TableEntryCollection tables, BinaryReader 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 cff = 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()); //deprecated
//--------------
//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());
JSTF jstf = ReadTableIfExists(tables, input, new JSTF());
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));
}
STAT stat = ReadTableIfExists(tables, input, new STAT());
if (stat != null)
{
FVar fvar = ReadTableIfExists(tables, input, new FVar());
if (fvar != null)
{
GVar gvar = ReadTableIfExists(tables, input, new GVar());
CVar cvar = ReadTableIfExists(tables, input, new CVar());
HVar hvar = ReadTableIfExists(tables, input, new HVar());
MVar mvar = ReadTableIfExists(tables, input, new MVar());
AVar avar = ReadTableIfExists(tables, input, new AVar());
}
}
//test math table
MathTable mathtable = ReadTableIfExists(tables, input, new MathTable());
//---------------------------------------------
//about truetype instruction init
//---------------------------------------------
Typeface typeface = null;
bool isPostScriptOutline = false;
bool isBitmapFont = false;
if (glyf == null)
{
//check if this is cff table ?
if (cff == null)
{
//check cbdt/cblc ?
CBLC cblcTable = ReadTableIfExists(tables, input, new CBLC());
if (cblcTable != null)
{
CBDT cbdtTable = ReadTableIfExists(tables, input, new CBDT());
//read cbdt
//bitmap font
BitmapFontGlyphSource bmpFontGlyphSrc = new BitmapFontGlyphSource(cblcTable, cbdtTable);
Glyph[] glyphs = bmpFontGlyphSrc.BuildGlyphList();
typeface = new Typeface(
nameEntry,
header.Bounds,
header.UnitsPerEm,
bmpFontGlyphSrc,
glyphs,
horizontalMetrics,
os2Table);
isBitmapFont = true;
}
else
{
//TODO:
EBLC fontBmpTable = ReadTableIfExists(tables, input, new EBLC());
throw new NotSupportedException();
}
}
else
{
//...
//PostScript outline font
isPostScriptOutline = true;
typeface = new Typeface(
nameEntry,
header.Bounds,
header.UnitsPerEm,
cff,
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 && !isBitmapFont)
{
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);
//------------
{
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);
}
internal void SetBitmapGlyphs(Glyph[] glyphs, BitmapFontGlyphSource bitmapFontGlyphSource)
{
_glyphs = glyphs;
_bitmapFontGlyphSource = bitmapFontGlyphSource;
}
internal bool ReadTableEntryCollection(Typeface typeface, RestoreTicket ticket, TableEntryCollection tables, BinaryReader input)
{
if (ticket != null)
{
return(ReadTableEntryCollectionOnRestoreMode(typeface, ticket, tables, input));
}
typeface.SetTableEntryCollection(tables.CloneTableHeaders());
var rd = new EntriesReaderHelper(tables, input);
//PART 1: basic information
OS2Table os2Table = rd.Read(new OS2Table());
Meta meta = rd.Read(new Meta());
NameEntry nameEntry = rd.Read(new NameEntry());
Head head = rd.Read(new Head());
MaxProfile maxProfile = rd.Read(new MaxProfile());
HorizontalHeader horizontalHeader = rd.Read(new HorizontalHeader());
HorizontalMetrics horizontalMetrics = rd.Read(new HorizontalMetrics(horizontalHeader.NumberOfHMetrics, maxProfile.GlyphCount));
VerticalHeader vhea = rd.Read(new VerticalHeader());
if (vhea != null)
{
VerticalMetrics vmtx = rd.Read(new VerticalMetrics(vhea.NumOfLongVerMetrics));
}
Cmap cmaps = rd.Read(new Cmap());
VerticalDeviceMetrics vdmx = rd.Read(new VerticalDeviceMetrics());
Kern kern = rd.Read(new Kern());
//------------------------------------
//PART 2: glyphs detail
//2.1 True type font
GlyphLocations glyphLocations = rd.Read(new GlyphLocations(maxProfile.GlyphCount, head.WideGlyphLocations));
Glyf glyf = rd.Read(new Glyf(glyphLocations));
Gasp gaspTable = rd.Read(new Gasp());
COLR colr = rd.Read(new COLR());
CPAL cpal = rd.Read(new CPAL());
//2.2 Cff font
PostTable postTable = rd.Read(new PostTable());
CFFTable cff = rd.Read(new CFFTable());
//additional math table (if available)
MathTable mathtable = rd.Read(new MathTable());
//------------------------------------
//PART 3: advanced typography
GDEF gdef = rd.Read(new GDEF());
GSUB gsub = rd.Read(new GSUB());
GPOS gpos = rd.Read(new GPOS());
BASE baseTable = rd.Read(new BASE());
JSTF jstf = rd.Read(new JSTF());
STAT stat = rd.Read(new STAT());
if (stat != null)
{
//variable font
FVar fvar = rd.Read(new FVar());
if (fvar != null)
{
GVar gvar = rd.Read(new GVar());
CVar cvar = rd.Read(new CVar());
HVar hvar = rd.Read(new HVar());
MVar mvar = rd.Read(new MVar());
AVar avar = rd.Read(new AVar());
}
}
bool isPostScriptOutline = false;
bool isBitmapFont = false;
typeface.SetBasicTypefaceTables(os2Table, nameEntry, head, horizontalMetrics);
if (glyf == null)
{
//check if this is cff table ?
if (cff == null)
{
//check cbdt/cblc ?
CBLC cblcTable = rd.Read(new CBLC());
if (cblcTable != null)
{
CBDT cbdtTable = rd.Read(new CBDT());
//read cbdt
//bitmap font
BitmapFontGlyphSource bmpFontGlyphSrc = new BitmapFontGlyphSource(cblcTable);
bmpFontGlyphSrc.LoadCBDT(cbdtTable);
Glyph[] glyphs = bmpFontGlyphSrc.BuildGlyphList();
typeface.SetBitmapGlyphs(glyphs, bmpFontGlyphSrc);
isBitmapFont = true;
}
else
{
//TODO:
EBLC fontBmpTable = rd.Read(new EBLC());
throw new NotSupportedException();
}
}
else
{
isPostScriptOutline = true;
typeface.SetCffFontSet(cff.Cff1FontSet);
}
}
else
{
typeface.SetTtfGlyphs(glyf.Glyphs);
}
//----------------------------
typeface.CmapTable = cmaps;
typeface.KernTable = kern;
typeface.MaxProfile = maxProfile;
typeface.HheaTable = horizontalHeader;
//----------------------------
typeface.GaspTable = gaspTable;
if (!isPostScriptOutline && !isBitmapFont)
{
//for true-type font outline
FpgmTable fpgmTable = rd.Read(new FpgmTable());
//control values table
CvtTable cvtTable = rd.Read(new CvtTable());
PrepTable propProgramTable = rd.Read(new PrepTable());
typeface.ControlValues = cvtTable?._controlValues;
typeface.FpgmProgramBuffer = fpgmTable?._programBuffer;
typeface.PrepProgramBuffer = propProgramTable?._programBuffer;
}
//-------------------------
typeface.LoadOpenFontLayoutInfo(
gdef,
gsub,
gpos,
baseTable,
colr,
cpal);
//------------
typeface.SetSvgTable(rd.Read(new SvgTable()));
typeface.PostTable = postTable;
if (mathtable != null)
{
MathGlyphLoader.LoadMathGlyph(typeface, mathtable);
}
#if DEBUG
//test
//int found = typeface.GetGlyphIndexByName("Uacute");
if (typeface.IsCffFont)
{
//optional
typeface.UpdateAllCffGlyphBounds();
}
#endif
typeface.UpdateLangs(meta);
typeface.UpdateFrequentlyUsedValues();
return(true);
}
