程序包 com.google.typography.font.sfntly.data

类 FontInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.google.typography.font.sfntly.data.FontInputStream

所有已实现的接口:

Closeable, AutoCloseable

public class FontInputStream
extends FilterInputStream

An input stream for reading font data. The data types used are as listed:

BYTE	8-bit unsigned integer.
CHAR	8-bit signed integer.
USHORT	16-bit unsigned integer.
SHORT	16-bit signed integer.
UINT24	24-bit unsigned integer.
ULONG	32-bit unsigned integer.
LONG	32-bit signed integer.
Fixed	32-bit signed fixed-point number (16.16)
FUNIT	Smallest measurable distance in the em space.
FWORD	16-bit signed integer (SHORT) that describes a quantity in FUnits.
UFWORD	16-bit unsigned integer (USHORT) that describes a quantity in FUnits.
F2DOT14	16-bit signed fixed number with the low 14 bits of fraction (2.14).
LONGDATETIME	Date represented in number of seconds since 12:00 midnight, January 1, 1904. The value is represented as a signed 64-bit integer.

作者:

Stuart Gill

另请参阅:

• FontOutputStream

字段概要

字段

修饰符和类型	字段	说明
private boolean	bounded
private long	length
private long	position

从类继承的字段 java.io.FilterInputStream

in

构造器概要

构造器

构造器	说明
FontInputStream(InputStream is)	Constructor.
FontInputStream(InputStream is, int length)	Constructor for a bounded font input stream.

方法概要

修饰符和类型	方法	说明
long	position()	Get the current position in the stream in bytes.
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
int	readChar()	Read a Char value.
long	readDateTimeAsLong()	Read a DateTime value as a long.
int	readFixed()	Read a Fixed value.
int	readLong()	Read a Long value.
int	readShort()	Read a Short value.
int	readUInt24()	Read a UInt24 value.
long	readULong()	Read a ULong value.
int	readULongAsInt()	Read a ULong value as an int.
int	readUShort()	Read a UShort value.
long	skip(long n)

从类继承的方法 java.io.FilterInputStream

available, close, mark, markSupported, reset

从类继承的方法 java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

从类继承的方法 java.lang.Object

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

字段详细资料

position

private long position

length

private long length

bounded

private boolean bounded

构造器详细资料

FontInputStream

public FontInputStream(InputStream is)

Constructor.

参数:

is - input stream to wrap

FontInputStream

public FontInputStream(InputStream is,
 int length)

Constructor for a bounded font input stream.

参数:

is - input stream to wrap

length - the maximum length of bytes to read

方法详细资料

read

public int read()
         throws IOException

覆盖:

read 在类中 FilterInputStream

抛出:

IOException

read

public int read(byte[] b,
 int off,
 int len)
         throws IOException

覆盖:

read 在类中 FilterInputStream

抛出:

IOException

read

public int read(byte[] b)
         throws IOException

覆盖:

read 在类中 FilterInputStream

抛出:

IOException

position

public long position()

Get the current position in the stream in bytes.

返回:

the current position in bytes

readChar

public int readChar()
             throws IOException

Read a Char value.

返回:

Char value

抛出:

IOException

readUShort

public int readUShort()
               throws IOException

Read a UShort value.

返回:

UShort value

抛出:

IOException

readShort

public int readShort()
              throws IOException

Read a Short value.

返回:

Short value

抛出:

IOException

readUInt24

public int readUInt24()
               throws IOException

Read a UInt24 value.

返回:

UInt24 value

抛出:

IOException

readULong

public long readULong()
               throws IOException

Read a ULong value.

返回:

ULong value

抛出:

IOException

readULongAsInt

public int readULongAsInt()
                   throws IOException

Read a ULong value as an int. If the value is not representable as an integer an ArithmeticException is thrown.

返回:

Ulong value

抛出:

IOException

ArithmeticException

readLong

public int readLong()
             throws IOException

Read a Long value.

返回:

Long value

抛出:

IOException

readFixed

public int readFixed()
              throws IOException

Read a Fixed value.

返回:

Fixed value

抛出:

IOException

readDateTimeAsLong

public long readDateTimeAsLong()
                        throws IOException

Read a DateTime value as a long.

返回:

DateTime value.

抛出:

IOException

skip

public long skip(long n)
          throws IOException

覆盖:

skip 在类中 FilterInputStream

抛出:

IOException