org.sejda.sambox.pdmodel.font

Class PDSimpleFont

java.lang.Object

org.sejda.sambox.pdmodel.font.PDFont

org.sejda.sambox.pdmodel.font.PDSimpleFont

All Implemented Interfaces:

COSObjectable, PDFontLike, Subsettable

Direct Known Subclasses:

PDTrueTypeFont, PDType1CFont, PDType1Font, PDType3Font

public abstract class PDSimpleFont
extends PDFont

A simple font. Simple fonts use a PostScript encoding vector.

Author:

John Hewson

Field Summary

Fields

Modifier and Type	Field and Description
protected Encoding	encoding
protected GlyphList	glyphList

Fields inherited from class org.sejda.sambox.pdmodel.font.PDFont

DEFAULT_FONT_MATRIX, dict

Method Summary

Modifier and Type	Method and Description
void	addToSubset(int codePoint) Adds the given Unicode point to the subset.
Encoding	getEncoding() Returns the Encoding vector.
abstract org.apache.fontbox.FontBoxFont	getFontBoxFont() Returns the embedded or system font used for rendering.
GlyphList	getGlyphList() Returns the Encoding vector.
abstract GeneralPath	getPath(String name) Returns the path for the character with the given name.
protected float	getStandard14Width(int code) Returns the glyph width from the AFM if this is a Standard 14 font.
protected Boolean	getSymbolicFlag() Returns the value of the symbolic flag, allowing for the fact that the result may be indeterminate.
boolean	hasExplicitWidth(int code) Returns true if the Font dictionary specifies an explicit width for the given glyph.
abstract boolean	hasGlyph(String name) Returns true if the font contains the character with the given name.
protected Boolean	isFontSymbolic() Internal implementation of isSymbolic, allowing for the fact that the result may be indeterminate.
boolean	isStandard14() Returns true if this font is one of the "Standard 14" fonts and receives special handling.
boolean	isSymbolic() Returns true the font is a symbolic (that is, it does not use the Adobe Standard Roman character set).
boolean	isVertical() Returns true if the font uses vertical writing mode.
protected void	readEncoding() Reads the Encoding from the Font dictionary or the embedded or substituted font file.
protected abstract Encoding	readEncodingFromFont() Called by readEncoding() if the encoding needs to be extracted from the font file.
void	subset() Replaces this font with a subset containing only the given Unicode characters.
String	toUnicode(int code) Returns the Unicode character sequence which corresponds to the given character code.
String	toUnicode(int code, GlyphList customGlyphList) Returns the Unicode character sequence which corresponds to the given character code.
boolean	willBeSubset()

Methods inherited from class org.sejda.sambox.pdmodel.font.PDFont

encode, encode, encodeLeniently, equals, getAverageFontWidth, getBoundingBox, getCOSObject, getDisplacement, getFontDescriptor, getFontMatrix, getHeight, getName, getPositionVector, getSpaceWidth, getStandard14AFM, getStringWidth, getStringWidthLeniently, getSubType, getToUnicodeCMap, getType, getWidth, getWidthFromFont, getWidths, hashCode, isDamaged, isEmbedded, readCMap, readCode, setFontDescriptor, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

encoding

protected Encoding encoding

glyphList

protected GlyphList glyphList

Method Detail

readEncoding

protected void readEncoding()
                     throws IOException

Reads the Encoding from the Font dictionary or the embedded or substituted font file. Must be called at the end of any subclass constructors.

Throws:

IOException - if the font file could not be read

readEncodingFromFont

protected abstract Encoding readEncodingFromFont()
                                          throws IOException

Called by readEncoding() if the encoding needs to be extracted from the font file.

Throws:

IOException - if the font file could not be read.

getEncoding

public Encoding getEncoding()

Returns the Encoding vector.

getGlyphList

public GlyphList getGlyphList()

Returns the Encoding vector.

isSymbolic

public final boolean isSymbolic()

Returns true the font is a symbolic (that is, it does not use the Adobe Standard Roman character set).

isFontSymbolic

protected Boolean isFontSymbolic()

Internal implementation of isSymbolic, allowing for the fact that the result may be indeterminate.

getSymbolicFlag

protected final Boolean getSymbolicFlag()

Returns the value of the symbolic flag, allowing for the fact that the result may be indeterminate.

toUnicode

public String toUnicode(int code)
                 throws IOException

Description copied from class: PDFont

Returns the Unicode character sequence which corresponds to the given character code.

Overrides:

toUnicode in class PDFont

Parameters:

code - character code

Returns:

Unicode character(s)

Throws:

IOException

toUnicode

public String toUnicode(int code,
                        GlyphList customGlyphList)
                 throws IOException

Description copied from class: PDFont

Returns the Unicode character sequence which corresponds to the given character code.

Overrides:

toUnicode in class PDFont

Parameters:

code - character code

customGlyphList - a custom glyph list to use instead of the Adobe Glyph List

Returns:

Unicode character(s)

Throws:

IOException

isVertical

public boolean isVertical()

Description copied from class: PDFont

Returns true if the font uses vertical writing mode.

Specified by:

isVertical in class PDFont

getStandard14Width

protected final float getStandard14Width(int code)

Description copied from class: PDFont

Returns the glyph width from the AFM if this is a Standard 14 font.

Specified by:

getStandard14Width in class PDFont

Parameters:

code - character code

Returns:

width in 1/1000 text space

isStandard14

public boolean isStandard14()

Description copied from class: PDFont

Returns true if this font is one of the "Standard 14" fonts and receives special handling.

Overrides:

isStandard14 in class PDFont

getPath

public abstract GeneralPath getPath(String name)
                             throws IOException

Returns the path for the character with the given name. For some fonts, GIDs may be used instead of names when calling this method.

Returns:

glyph path

Throws:

IOException - if the path could not be read

hasGlyph

public abstract boolean hasGlyph(String name)
                          throws IOException

Returns true if the font contains the character with the given name.

Throws:

IOException - if the path could not be read

getFontBoxFont

public abstract org.apache.fontbox.FontBoxFont getFontBoxFont()

Returns the embedded or system font used for rendering. This is never null.

addToSubset

public void addToSubset(int codePoint)

Description copied from interface: Subsettable

Adds the given Unicode point to the subset.

Parameters:

codePoint - Unicode code point

subset

public void subset()
            throws IOException

Description copied from interface: Subsettable

Replaces this font with a subset containing only the given Unicode characters.

Throws:

IOException - if the subset could not be written

willBeSubset

public boolean willBeSubset()

Returns:

true if this font will be subset when embedded.

hasExplicitWidth

public boolean hasExplicitWidth(int code)
                         throws IOException

Description copied from interface: PDFontLike

Returns true if the Font dictionary specifies an explicit width for the given glyph. This includes Width, W but not default widths entries.

Parameters:

code - character code

Throws:

IOException - if the font could not be read