Package com.adobe.fontengine.font.type1

Class FontFactory

java.lang.Object

com.adobe.fontengine.font.type1.FontFactory

public final class FontFactory
extends Object

Creates font objects for legacy type1 fonts.

Synchronization

This class represents a namespace and does not contain instance data or mutable static data. It is therefore threadsafe.

Constructor Summary

Constructors

Constructor	Description
FontFactory()

Method Summary

Modifier and Type	Method	Description
static int	getNumBytesNeededToIdentify()	Returns the number of initial bytes necessary to identify a stream as a type1 font
static int	getNumBytesNeededToIdentifyAFM()	Returns the number of initial bytes necessary to identify a stream as an AFM
static int	getNumBytesNeededToIdentifyPFM()	Returns the number of initial bytes necessary to identify a stream as a PFM
static boolean	isAFM(byte[] startingBytes)	Determines if startingBytes represents the start of an AFM
static boolean	isPFM(byte[] startingBytes)	Determines if startingBytes represents the start of a PFM
static boolean	isType1(byte[] startingBytes)	Determines if startingBytes represents the start of a type1 font
static Type1Font[]	load(FontInputStream in, URL url)	Given an input stream, creates Type1Font objects that represent it.
static MetricFile	loadAFM(FontInputStream str, URL url)	If the stream contains an AFM, it creates an AFM and returns it.
static MetricFile	loadPFM(FontInputStream str, URL url)	If the stream contains an PFM, it creates an PFM object and returns it.

Methods inherited from class java.lang.Object

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

Constructor Detail

FontFactory

public FontFactory()

Method Detail

getNumBytesNeededToIdentify

public static int getNumBytesNeededToIdentify()

Returns the number of initial bytes necessary to identify a stream as a type1 font

isType1

public static boolean isType1(byte[] startingBytes)

Determines if startingBytes represents the start of a type1 font

Parameters:

startingBytes - The initial file bytes

Returns:

true iff the bytes appear to be the start of a type1 font

getNumBytesNeededToIdentifyAFM

public static int getNumBytesNeededToIdentifyAFM()

Returns the number of initial bytes necessary to identify a stream as an AFM

isAFM

public static boolean isAFM(byte[] startingBytes)

Determines if startingBytes represents the start of an AFM

Parameters:

startingBytes - The initial file bytes

Returns:

true iff the bytes appear to be the start of a afm

getNumBytesNeededToIdentifyPFM

public static int getNumBytesNeededToIdentifyPFM()

Returns the number of initial bytes necessary to identify a stream as a PFM

isPFM

public static boolean isPFM(byte[] startingBytes)

Determines if startingBytes represents the start of a PFM

Parameters:

startingBytes - The initial file bytes

Returns:

true iff the bytes appear to be the start of a pfm

load

public static Type1Font[] load(FontInputStream in,
                               URL url)
                        throws IOException,
                               InvalidFontException,
                               UnsupportedFontException

Given an input stream, creates Type1Font objects that represent it. Note that fonts are parsed at this point. Also note that multiple master fonts are not supported by AFE. Calling this function with a multiple master font will cause an exception to be thrown.

Parameters:

in - The input stream

Returns:

An array of type1 fonts

Throws:

IOException - Thrown if the stream cannot be read

InvalidFontException - Thrown if the stream does not represent a valid type1 font.

UnsupportedFontException

loadAFM

public static MetricFile loadAFM(FontInputStream str,
                                 URL url)
                          throws IOException,
                                 InvalidFontException

If the stream contains an AFM, it creates an AFM and returns it. Note that AFMs are parsed at this point

Parameters:

str - The stream to be probed.

Returns:

null if str is not an AFM. A valid AFM object otherwise.

Throws:

IOException - Thrown if the stream cannot be read

InvalidFontException - Thrown if the stream does not represent a valid AFM

loadPFM

public static MetricFile loadPFM(FontInputStream str,
                                 URL url)
                          throws IOException,
                                 InvalidFontException

If the stream contains an PFM, it creates an PFM object and returns it. Note that PFMs are parsed at this point

Parameters:

str - The stream to be probed.

Returns:

null if str is not an PFM. A valid PFM object otherwise.

Throws:

IOException - Thrown if the stream cannot be read

InvalidFontException