org.foray.font.format.ttf
Class TTFTableHMTX

java.lang.Object
  org.foray.font.format.ttf.TTFTableHMTX

public class TTFTableHMTX
extends Object

Class representing a TTF "hmtx" (horizontal metrics) table.

Field Summary

protected static byte	BYTE_BYTES The size, in bytes of the data type "BYTE", that is, 1.
protected static byte	CHAR_BYTES The size, in bytes of the data type "CHAR", that is, 1.
protected static byte	F2DOT14_BYTES The size, in bytes of the data type "F2DOT14", that is, 2.
protected static byte	FIXED_BYTES The size, in bytes of the data type "FIXED", that is, 4.
protected static byte	FWORD_BYTES The size, in bytes of the data type "FWORD", that is, 2.
protected static byte	LONG_BYTES The size, in bytes of the data type "LONG", that is, 4.
protected static byte	LONG_DATE_TIME_BYTES The size, in bytes of the data type "International Date", that is, 8.
protected static byte	OFFSET_BYTES The size, in bytes of the data type "Offset", that is, 2.
protected static byte	SHORT_BYTES The size, in bytes of the data type "SHORT", that is, 2.
protected static byte	UFWORD_BYTES The size, in bytes of the data type "UFWORD", that is, 2.
protected static byte	ULONG_BYTES The size, in bytes of the data type "ULONG", that is, 4.
protected static byte	USHORT_BYTES The size, in bytes of the data type "USHORT", that is, 2.

Constructor Summary

TTFTableHMTX(TTFOffsetTableRecord dirEntry)
Constructor.

Method Summary

org.foray.font.format.ttf.TTFMtxEntry	getMtxEntry(int index) Return a specific metric record.
String	getTableTag() Return the 4-character name of this table, for example, "post" or "glyf".
int	numMtxEntries() Returns the number of metric records in this table.
static TTFTableHMTX	parse(TTFOffsetTableRecord dirEntry, RandomAccessInput raInput, int numberOfGlyphs, int numberOfHMetrics) Read "hmtx" table and put the horizontal metrics in the metrics array.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BYTE_BYTES

protected static final byte BYTE_BYTES

The size, in bytes of the data type "BYTE", that is, 1.

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Constant Field Values

CHAR_BYTES

protected static final byte CHAR_BYTES

The size, in bytes of the data type "CHAR", that is, 1.

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Constant Field Values

USHORT_BYTES

protected static final byte USHORT_BYTES

The size, in bytes of the data type "USHORT", that is, 2.

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Constant Field Values

SHORT_BYTES

protected static final byte SHORT_BYTES

The size, in bytes of the data type "SHORT", that is, 2.

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Constant Field Values

ULONG_BYTES

protected static final byte ULONG_BYTES

The size, in bytes of the data type "ULONG", that is, 4.

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Constant Field Values

LONG_BYTES

protected static final byte LONG_BYTES

The size, in bytes of the data type "LONG", that is, 4.

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Constant Field Values

FIXED_BYTES

protected static final byte FIXED_BYTES

The size, in bytes of the data type "FIXED", that is, 4.

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Constant Field Values

FWORD_BYTES

protected static final byte FWORD_BYTES

The size, in bytes of the data type "FWORD", that is, 2.

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Constant Field Values

UFWORD_BYTES

protected static final byte UFWORD_BYTES

The size, in bytes of the data type "UFWORD", that is, 2.

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Constant Field Values

F2DOT14_BYTES

protected static final byte F2DOT14_BYTES

The size, in bytes of the data type "F2DOT14", that is, 2.

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Constant Field Values

LONG_DATE_TIME_BYTES

protected static final byte LONG_DATE_TIME_BYTES

The size, in bytes of the data type "International Date", that is, 8.

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Constant Field Values

OFFSET_BYTES

protected static final byte OFFSET_BYTES

The size, in bytes of the data type "Offset", that is, 2.

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Constant Field Values

Constructor Detail

TTFTableHMTX

public TTFTableHMTX(TTFOffsetTableRecord dirEntry)

Constructor.

Parameters:

dirEntry - The parent table directory entry.

Method Detail

parse

public static TTFTableHMTX parse(TTFOffsetTableRecord dirEntry,
                                 RandomAccessInput raInput,
                                 int numberOfGlyphs,
                                 int numberOfHMetrics)
                          throws IOException

Read "hmtx" table and put the horizontal metrics in the metrics array. If the number of metrics is less than the number of glyphs (eg fixed size fonts), extend the metrics array and fill in the missing widths.

Parameters:

dirEntry - The parent table directory entry.

raInput - The input which is being parsed.

numberOfGlyphs - The number of glyphs in the font. This information is derived from the "maxp" table.

numberOfHMetrics - The number of horizontal metrics in the font. This information is derived from the "hhea" table.

Returns:

The parsed instance.

Throws:

IOException - For I/O Error.

getTableTag

public String getTableTag()

Return the 4-character name of this table, for example, "post" or "glyf".

Returns:

The name of this table.

getMtxEntry

public org.foray.font.format.ttf.TTFMtxEntry getMtxEntry(int index)

Return a specific metric record.

Parameters:

index - The index to the desired metric record.

Returns:

The metric record corresponding to index.

numMtxEntries

public int numMtxEntries()

Returns the number of metric records in this table.

Returns:

The number of metric records in this table.