Class TrueTypeFontSubSet

Builds a minimal subset of a TrueType font containing only the glyphs actually used, rewriting the loca/glyf tables and reassembling the font for embedding (e.g. in PDF output).

Inheritance
object
TrueTypeFontSubSet
Inherited Members
Namespace: Reportman.Drawing
Assembly: Reportman.Drawing.dll
Syntax
public class TrueTypeFontSubSet

Constructors

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TrueTypeFontSubSet(string, byte[], Dictionary<int, int[]>, uint)

Create a class to extact the subset stream of a font, given the glyphs used

Declaration
public TrueTypeFontSubSet(string fontname, byte[] rfarray, Dictionary<int, int[]> glyphsUsed, uint directoryOffset)
Parameters
Type Name Description
string fontname
byte[] rfarray
Dictionary<int, int[]> glyphsUsed
uint directoryOffset

Fields

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directoryOffset

Declaration
protected uint directoryOffset
Field Value
Type Description
uint
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fontPtr

Declaration
protected int fontPtr
Field Value
Type Description
int
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glyfTableRealSize

Declaration
protected int glyfTableRealSize
Field Value
Type Description
int
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glyphsInList

Declaration
protected List<int> glyphsInList
Field Value
Type Description
List<int>
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glyphsUsed

Declaration
protected Dictionary<int, int[]> glyphsUsed
Field Value
Type Description
Dictionary<int, int[]>
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locaShortTable

Declaration
protected bool locaShortTable
Field Value
Type Description
bool
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locaTable

Declaration
protected int[] locaTable
Field Value
Type Description
int[]
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locaTableRealSize

Declaration
protected int locaTableRealSize
Field Value
Type Description
int
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newGlyfTable

Declaration
protected byte[] newGlyfTable
Field Value
Type Description
byte[]
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newLocaTable

Declaration
protected int[] newLocaTable
Field Value
Type Description
int[]
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newLocaTableOut

Declaration
protected byte[] newLocaTableOut
Field Value
Type Description
byte[]
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outFont

Declaration
protected byte[] outFont
Field Value
Type Description
byte[]
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rfarray

Declaration
protected byte[] rfarray
Field Value
Type Description
byte[]
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tableGlyphOffset

Declaration
protected int tableGlyphOffset
Field Value
Type Description
int
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tables

Declaration
protected SortedList<string, TableData> tables
Field Value
Type Description
SortedList<string, TableData>

Methods

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AssembleFont()

Declaration
protected void AssembleFont()
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ByteArrayToInt(byte[], int, int)

Declaration
public static int ByteArrayToInt(byte[] b1, int index, int alen)
Parameters
Type Name Description
byte[] b1
int index
int alen
Returns
Type Description
int
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ByteArrayToShort(byte[], int, int)

Declaration
public static short ByteArrayToShort(byte[] b1, int index, int alen)
Parameters
Type Name Description
byte[] b1
int index
int alen
Returns
Type Description
short
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ByteArrayToUInt(byte[], int, int)

Converts a byte array to an uint value

Declaration
public static uint ByteArrayToUInt(byte[] b1, int index, int alen)
Parameters
Type Name Description
byte[] b1
int index
int alen
Returns
Type Description
uint
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ByteArrayToUShort(byte[], int, int)

Declaration
public static ushort ByteArrayToUShort(byte[] b1, int index, int alen)
Parameters
Type Name Description
byte[] b1
int index
int alen
Returns
Type Description
ushort
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CalculateChecksum(byte[])

Declaration
protected int CalculateChecksum(byte[] b)
Parameters
Type Name Description
byte[] b
Returns
Type Description
int
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CheckGlyphComposite(int)

Declaration
protected void CheckGlyphComposite(int glyph)
Parameters
Type Name Description
int glyph
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CreateNewGlyphTables()

Declaration
protected void CreateNewGlyphTables()
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CreateTableDirectory()

Declaration
protected void CreateTableDirectory()
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Execute()

Declaration
public byte[] Execute()
Returns
Type Description
byte[]
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FlatGlyphs()

Declaration
protected void FlatGlyphs()
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GetPostcriptName(int)

Declaration
public string GetPostcriptName(int offset)
Parameters
Type Name Description
int offset
Returns
Type Description
string
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LocaTobytes()

Declaration
protected void LocaTobytes()
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ReadBytes(int, byte[], int, int)

Declaration
public void ReadBytes(int nindex, byte[] b, int off, int len)
Parameters
Type Name Description
int nindex
byte[] b
int off
int len
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ReadLoca()

Declaration
protected void ReadLoca()
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WriteFontInt(int)

Declaration
protected void WriteFontInt(int n)
Parameters
Type Name Description
int n
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WriteFontShort(int)

Declaration
protected void WriteFontShort(int n)
Parameters
Type Name Description
int n
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WriteFontString(string)

Declaration
protected void WriteFontString(string s)
Parameters
Type Name Description
string s