protected internal override void Write(FontFileWriter writer)
{
FontFileStream stream = writer.Stream;
// These two fields are common to versions 0.5 and 1.0
stream.WriteFixed(versionNo);
stream.WriteUShort(numGlyphs);
// Version 1.0 of this table contains more data
if (versionNo == 0x00010000)
{
stream.WriteUShort(maxPoints);
stream.WriteUShort(maxContours);
stream.WriteUShort(maxCompositePoints);
stream.WriteUShort(maxCompositeContours);
stream.WriteUShort(maxZones);
stream.WriteUShort(maxTwilightPoints);
stream.WriteUShort(maxStorage);
stream.WriteUShort(maxFunctionDefs);
stream.WriteUShort(maxInstructionDefs);
stream.WriteUShort(maxStackElements);
stream.WriteUShort(maxSizeOfInstructions);
stream.WriteUShort(maxComponentElements);
stream.WriteUShort(maxComponentDepth);
}
}
/// <summary>
/// Writes the offset table that appears at the beginning of
/// every TrueType/OpenType font.
/// </summary>
private void WriteOffsetTable()
{
// sfnt version (0x00010000 for version 1.0).
stream.WriteFixed(0x00010000);
// numTables field
int numTables = tables.Count;
stream.WriteUShort(numTables);
// searchRange field ((Maximum power of 2 <= numTables) x 16)
int maxPower = MaxPow2(numTables);
int searchRange = maxPower * 16;
stream.WriteUShort(searchRange);
// entrySelector (Log2(maximum power of 2 <= numTables))
int entrySelector = (int)(Math.Log(maxPower, 2));
stream.WriteUShort(entrySelector);
// NumTables x 16-searchRange.
int rangeShift = numTables * 16 - searchRange;
stream.WriteUShort(rangeShift);
}
/// <summary>
/// Writes the contents of the head table to the supplied stream.
/// </summary>
/// <param name="writer"></param>
protected internal override void Write(FontFileWriter writer)
{
FontFileStream stream = writer.Stream;
stream.WriteFixed(versionNo);
stream.WriteFixed(fontRevision);
stream.WriteULong(0);
stream.WriteULong(0x5F0F3CF5);
stream.WriteUShort(flags);
stream.WriteUShort(unitsPermEm);
stream.WriteDateTime((long)(createDate - BaseDate).TotalSeconds);
stream.WriteDateTime((long)(updateDate - BaseDate).TotalSeconds);
stream.WriteShort(xMin);
stream.WriteShort(yMin);
stream.WriteShort(xMax);
stream.WriteShort(yMax);
stream.WriteUShort(macStyle);
stream.WriteUShort(lowestRecPPEM);
stream.WriteShort(fontDirectionHint);
stream.WriteShort(1);
stream.WriteShort(glyphDataFormat);
}
protected internal override void Write(FontFileWriter writer)
{
FontFileStream stream = writer.Stream;
stream.WriteFixed(versionNo);
stream.WriteFWord(ascender);
stream.WriteFWord(decender);
stream.WriteFWord(lineGap);
stream.WriteUFWord(advanceWidthMax);
stream.WriteFWord(minLeftSideBearing);
stream.WriteFWord(minRightSideBearing);
stream.WriteFWord(xMaxExtent);
stream.WriteShort(caretSlopeRise);
stream.WriteShort(caretSlopeRun);
stream.WriteShort(caretOffset);
stream.WriteShort(0);
stream.WriteShort(0);
stream.WriteShort(0);
stream.WriteShort(0);
stream.WriteShort(metricDataFormat);
stream.WriteUShort(numberOfHMetrics);
}
