org.icepdf.core.pobjects.fonts
Class FontDescriptor

java.lang.Object
  org.icepdf.core.pobjects.Dictionary
      org.icepdf.core.pobjects.fonts.FontDescriptor

public class FontDescriptor
extends Dictionary

This class represents a PDF FontDescriptor. A FontDescriptor object holds extra information about a particular parent Font object. In particular information on font widths, flags, to unicode and embedded font program streams.

See Also:

Font

Field Summary

static Name	ASCENT
static Name	AVG_WIDTH
static Name	CAP_HEIGHT
static Name	DESCENT
static Name	FLAGS
static Name	FONT_BBOX
static Name	FONT_FAMILY
static Name	FONT_FILE
static Name	FONT_FILE_2
static Name	FONT_FILE_3
static Name	FONT_FILE_3_CID_FONT_TYPE_0
static Name	FONT_FILE_3_CID_FONT_TYPE_0C
static Name	FONT_FILE_3_CID_FONT_TYPE_2
static Name	FONT_FILE_3_OPEN_TYPE
static Name	FONT_FILE_3_TYPE_1C
static Name	FONT_NAME
static Name	FONT_WEIGHT
static Name	ITALIC_ANGLE
static Name	LEADING
static Name	MAX_WIDTH
static Name	MISSING_Stretch
static Name	MISSING_WIDTH
static Name	STEM_H
static Name	STEM_V
static Name	TYPE
static Name	X_HEIGHT

Fields inherited from class org.icepdf.core.pobjects.Dictionary

entries, FORM_TYPE_KEY, inited, isDeleted, isNew, LENGTH_KEY, library, SUBTYPE_KEY, TYPE_KEY

Constructor Summary

FontDescriptor(Library l, java.util.HashMap h)
Creates a new instance of a FontDescriptor.

Method Summary

static FontDescriptor	createDescriptor(Library library, AFM afm) Utility method for creating a FontDescriptor based on the font metrics of the AFM
float	getAscent() Gets the ascent of glyphs in the font.
float	getAverageWidth() Gets the average width of glyphs in the font.
float	getDescent() Gets the descent of glyphs in the font.
FontFile	getEmbeddedFont() Gets the embeddedFont if any.
int	getFlags() Gets the font flag value, which is a collection of various characteristics that describe the font.
PRectangle	getFontBBox() Gets the fonts bounding box.
java.lang.String	getFontFamily() Gets a string specifying the preferred font family name.
java.lang.String	getFontName() Returns the PostScript name of the font.
float	getFontWeight() Gets the weight (thickness) component of the fully-qualified font name or font specifier.
float	getMaxWidth() Gets the maximum width of glyphs in the font.
float	getMissingWidth() Gets the width to use for character codes whose widths are not specifed in the font's dictionary.
void	init() Initiate the Font Descriptor object.
java.lang.String	toString() Return a string representation of the all the FontDescriptor object's parsed attributes.

Methods inherited from class org.icepdf.core.pobjects.Dictionary

getEntries, getFloat, getInt, getLibrary, getNumber, getObject, getPObjectReference, isDeleted, isNew, setDeleted, setNew, setPObjectReference

Methods inherited from class java.lang.Object

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

Field Detail

TYPE

public static final Name TYPE

FONT_NAME

public static final Name FONT_NAME

FONT_FAMILY

public static final Name FONT_FAMILY

MISSING_Stretch

public static final Name MISSING_Stretch

FONT_WEIGHT

public static final Name FONT_WEIGHT

FLAGS

public static final Name FLAGS

FONT_BBOX

public static final Name FONT_BBOX

ITALIC_ANGLE

public static final Name ITALIC_ANGLE

ASCENT

public static final Name ASCENT

DESCENT

public static final Name DESCENT

LEADING

public static final Name LEADING

CAP_HEIGHT

public static final Name CAP_HEIGHT

X_HEIGHT

public static final Name X_HEIGHT

STEM_V

public static final Name STEM_V

STEM_H

public static final Name STEM_H

AVG_WIDTH

public static final Name AVG_WIDTH

MAX_WIDTH

public static final Name MAX_WIDTH

MISSING_WIDTH

public static final Name MISSING_WIDTH

FONT_FILE

public static final Name FONT_FILE

FONT_FILE_2

public static final Name FONT_FILE_2

FONT_FILE_3

public static final Name FONT_FILE_3

FONT_FILE_3_TYPE_1C

public static final Name FONT_FILE_3_TYPE_1C

FONT_FILE_3_CID_FONT_TYPE_0

public static final Name FONT_FILE_3_CID_FONT_TYPE_0

FONT_FILE_3_CID_FONT_TYPE_2

public static final Name FONT_FILE_3_CID_FONT_TYPE_2

FONT_FILE_3_CID_FONT_TYPE_0C

public static final Name FONT_FILE_3_CID_FONT_TYPE_0C

FONT_FILE_3_OPEN_TYPE

public static final Name FONT_FILE_3_OPEN_TYPE

Constructor Detail

FontDescriptor

public FontDescriptor(Library l,
                      java.util.HashMap h)

Creates a new instance of a FontDescriptor.

Parameters:

l - Libaray of all objects in PDF

h - hash of parsed FontDescriptor attributes

Method Detail

createDescriptor

public static FontDescriptor createDescriptor(Library library,
                                              AFM afm)

Utility method for creating a FontDescriptor based on the font metrics of the AFM

Parameters:

library - document library

afm - adobe font metrics data

Returns:

new instance of a FontDescriptor

getFontName

public java.lang.String getFontName()

Returns the PostScript name of the font.

Returns:

PostScript name of font.

getFontFamily

public java.lang.String getFontFamily()

Gets a string specifying the preferred font family name. For example, the font "Time Bold Italic" would have a font family of Times.

Returns:

preferred font family name.

getFontWeight

public float getFontWeight()

Gets the weight (thickness) component of the fully-qualified font name or font specifier. The default value is zero.

Returns:

the weight of the font name.

getMissingWidth

public float getMissingWidth()

Gets the width to use for character codes whose widths are not specifed in the font's dictionary. The default value is zero.

Returns:

width of non-specified characters.

getAverageWidth

public float getAverageWidth()

Gets the average width of glyphs in the font. The default value is zero.

Returns:

average width of glyphs.

getMaxWidth

public float getMaxWidth()

Gets the maximum width of glyphs in the font. The default value is zero.

Returns:

maximum width of glyphs.

getAscent

public float getAscent()

Gets the ascent of glyphs in the font. The default value is zero.

Returns:

ascent of glyphs.

getDescent

public float getDescent()

Gets the descent of glyphs in the font. The default value is zero.

Returns:

descent of glyphs.

getEmbeddedFont

public FontFile getEmbeddedFont()

Gets the embeddedFont if any.

Returns:

embedded font; null, if there is no valid embedded font.

getFontBBox

public PRectangle getFontBBox()

Gets the fonts bounding box.

Returns:

bounding box in PDF coordinate space.

getFlags

public int getFlags()

Gets the font flag value, which is a collection of various characteristics that describe the font.

Returns:

int value representing the flags; bits must be looked at to get attribute values.

init

public void init()

Initiate the Font Descriptor object. Reads embedded font programs or CMap streams.

Overrides:

init in class Dictionary

toString

public java.lang.String toString()

Return a string representation of the all the FontDescriptor object's parsed attributes.

Overrides:

toString in class Dictionary

Returns:

all of FontDescriptors parsed attributes.