com.lowagie.text.pdf
Class CMapAwareDocumentFont

java.lang.Object
  com.lowagie.text.pdf.BaseFont
      com.lowagie.text.pdf.DocumentFont
          com.lowagie.text.pdf.CMapAwareDocumentFont

public class CMapAwareDocumentFont
extends DocumentFont

Implementation of DocumentFont used while parsing PDF streams.

Since:

2.1.4

Nested Class Summary

Nested classes/interfaces inherited from class com.lowagie.text.pdf.BaseFont

BaseFont.StreamFont

Field Summary

private CMap	cmap CMap instance.
private PdfDictionary	fontDic The font dictionary.
private int	spaceWidth the width of a space for this font, in normalized 1000 point units

Fields inherited from class com.lowagie.text.pdf.BaseFont

ASCENT, AWT_ASCENT, AWT_DESCENT, AWT_LEADING, AWT_MAXADVANCE, BBOXLLX, BBOXLLY, BBOXURX, BBOXURY, BuiltinFonts14, CACHED, CAPHEIGHT, CHAR_RANGE_ARABIC, CHAR_RANGE_CYRILLIC, CHAR_RANGE_HEBREW, CHAR_RANGE_LATIN, charBBoxes, CID_NEWLINE, compressionLevel, COURIER, COURIER_BOLD, COURIER_BOLDOBLIQUE, COURIER_OBLIQUE, CP1250, CP1252, CP1257, DESCENT, differences, directTextToByte, embedded, EMBEDDED, encoding, fastWinansi, FONT_TYPE_CJK, FONT_TYPE_DOCUMENT, FONT_TYPE_T1, FONT_TYPE_T3, FONT_TYPE_TT, FONT_TYPE_TTUNI, fontCache, fontSpecific, fontType, forceWidthsOutput, HELVETICA, HELVETICA_BOLD, HELVETICA_BOLDOBLIQUE, HELVETICA_OBLIQUE, IDENTITY_H, IDENTITY_V, ITALICANGLE, MACROMAN, NOT_CACHED, NOT_EMBEDDED, notdef, RESOURCE_PATH, specialMap, STRIKETHROUGH_POSITION, STRIKETHROUGH_THICKNESS, SUBSCRIPT_OFFSET, SUBSCRIPT_SIZE, subset, subsetRanges, SUPERSCRIPT_OFFSET, SUPERSCRIPT_SIZE, SYMBOL, TIMES_BOLD, TIMES_BOLDITALIC, TIMES_ITALIC, TIMES_ROMAN, UNDERLINE_POSITION, UNDERLINE_THICKNESS, unicodeDifferences, widths, WINANSI, ZAPFDINGBATS

Constructor Summary

CMapAwareDocumentFont(PRIndirectReference refFont)
Creates an instance of a CMapAwareFont based on an indirect reference to a font.

Method Summary

private int	computeAverageWidth() For all widths of all glyphs, compute the average width in normalized 1000 point units.
String	encode(byte[] bytes, int offset, int len) Encodes bytes to a String.
int	getWidth(int char1) Gets the width of a char in normalized 1000 units.
private void	processToUni() Does some processing if the font dictionary indicates that the font is in unicode.

Methods inherited from class com.lowagie.text.pdf.DocumentFont

charExists, convertToBytes, convertToBytes, getAllNameEntries, getCharBBox, getFamilyFontName, getFontDescriptor, getFullFontName, getFullFontStream, getIndirectReference, getKerning, getPostscriptFontName, getRawCharBBox, getRawWidth, getWidth, hasKernPairs, setKerning, setPostscriptFontName, writeFont

Methods inherited from class com.lowagie.text.pdf.BaseFont

addSubsetRange, correctArabicAdvance, createEncoding, createFont, createFont, createFont, createFont, createFont, createFont, createFont, createSubsetPrefix, enumerateTTCNames, enumerateTTCNames, getAllFontNames, getAllNameEntries, getAscent, getAscentPoint, getBaseName, getCidCode, getCodePagesSupported, getCompressionLevel, getDescent, getDescentPoint, getDifferences, getDocumentFonts, getDocumentFonts, getEncoding, getFontType, getFullFontName, getResourceStream, getResourceStream, getUnicodeDifferences, getUnicodeDifferences, getUnicodeEquivalent, getWidthPoint, getWidthPoint, getWidthPointKerned, getWidths, isDirectTextToByte, isEmbedded, isFontSpecific, isForceWidthsOutput, isSubset, normalizeEncoding, setCharAdvance, setCompressionLevel, setDirectTextToByte, setForceWidthsOutput, setSubset

Methods inherited from class java.lang.Object

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

Field Detail

fontDic

private PdfDictionary fontDic

The font dictionary.

cmap

private CMap cmap

CMap instance.

spaceWidth

private int spaceWidth

the width of a space for this font, in normalized 1000 point units

Constructor Detail

CMapAwareDocumentFont

public CMapAwareDocumentFont(PRIndirectReference refFont)

Creates an instance of a CMapAwareFont based on an indirect reference to a font.

Parameters:

refFont - the indirect reference to a font

Method Detail

computeAverageWidth

private int computeAverageWidth()

For all widths of all glyphs, compute the average width in normalized 1000 point units. This is used to give some meaningful width in cases where we need an average font width (such as if the width of a space isn't specified by a given font)

Returns:

the average width of all non-zero width glyphs in the font

getWidth

public int getWidth(int char1)

Description copied from class: DocumentFont

Gets the width of a char in normalized 1000 units.

Overrides:

getWidth in class DocumentFont

Parameters:

char1 - the unicode char to get the width of

Returns:

the width in normalized 1000 units

Since:

2.1.5 Override to allow special handling for fonts that don't specify width of space character

See Also:

DocumentFont.getWidth(int)

processToUni

private void processToUni()

Does some processing if the font dictionary indicates that the font is in unicode.

encode

public String encode(byte[] bytes,
                     int offset,
                     int len)

Encodes bytes to a String.

Parameters:

bytes - the bytes from a stream

offset - an offset

len - a length

Returns:

a String encoded taking into account if the bytes are in unicode or not.