org.extex.font.format.tfm
Class TfmFixWord

java.lang.Object
  org.extex.font.format.tfm.TfmFixWord

All Implemented Interfaces:

java.io.Serializable

public class TfmFixWord
extends java.lang.Object
implements java.io.Serializable

TFM-FixWord.

The dimensions are represented in the same way as in tfm files. Higher 12 bits is the whole part and lower 20 bits is the fractional part.

Version:

$Revision: 6121 $

Author:

Michael Niedermair

See Also:

Serialized Form

Field Summary

static int	CONV conf.
static int	FIXWORDDENOMINATOR fixdominator.
static int	FRACTIONDIGITS FRACTIONDIGITS.
static TfmFixWord	NULL NULL.
static int	POINTSHIFT POINT-SHIFT.
static TfmFixWord	TEN TEN.
static int	TFMCONV tfmconf.
static TfmFixWord	UNITY UNITY.
static TfmFixWord	ZERO ZERO.

Constructor Summary

TfmFixWord()
Create a new object.

TfmFixWord(int val)
Create a new object.

TfmFixWord(int num, int den)
Create new object.

TfmFixWord(java.lang.String val)
Create a new object.

Method Summary

long	getValue() Return the internal value.
boolean	lessThan(int num) less than.
boolean	moreThan(int num) more than.
void	setValue(long v) Set the value.
Dimen	toDimen(FixedDimen size) Convert the fixword value to a dimen value.
static Dimen	toDimen(FixedDimen desingsize, long val) Convert the fixword value to a dimen value.
static Dimen	toDimen(FixedDimen desingsize, TfmFixWord fw) Convert the fixword to a dimen value.
double	toDouble() Returns the value as double in untis.
java.lang.String	toString() Return the values as String.
java.lang.String	toStringComma() Returns the value as Sting in untis with comma (0.00000..).
java.lang.String	toStringUnits() Return the value as String in units.
static long	toValue(FixedDimen desingsize, FixedDimen dimen) Convert a dimen to a fix word value.

Methods inherited from class java.lang.Object

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

Field Detail

CONV

public static final int CONV

conf.

See Also:

Constant Field Values

FIXWORDDENOMINATOR

public static final int FIXWORDDENOMINATOR

fixdominator.

See Also:

Constant Field Values

FRACTIONDIGITS

public static final int FRACTIONDIGITS

FRACTIONDIGITS.

See Also:

Constant Field Values

NULL

public static final TfmFixWord NULL

NULL.

POINTSHIFT

public static final int POINTSHIFT

POINT-SHIFT.

See Also:

Constant Field Values

TEN

public static final TfmFixWord TEN

TEN.

TFMCONV

public static final int TFMCONV

tfmconf.

See Also:

Constant Field Values

UNITY

public static final TfmFixWord UNITY

UNITY.

ZERO

public static final TfmFixWord ZERO

ZERO.

Constructor Detail

TfmFixWord

public TfmFixWord()

Create a new object.

TfmFixWord

public TfmFixWord(int val)

Create a new object.

Parameters:

val - the values as int. This int value represents the length in points.

TfmFixWord

public TfmFixWord(int num,
                  int den)

Create new object. The value represented by this instance is num / den in points.

Parameters:

num - the num

den - the den

TfmFixWord

public TfmFixWord(java.lang.String val)

Create a new object.

Parameters:

val - the values as String

Method Detail

toDimen

public static Dimen toDimen(FixedDimen desingsize,
                            long val)

Convert the fixword value to a dimen value.

see toDimen(FixedDimen size)

Parameters:

desingsize - The design size.

val - The value.

Returns:

Return the Dimen of the value.

toDimen

public static Dimen toDimen(FixedDimen desingsize,
                            TfmFixWord fw)

Convert the fixword to a dimen value.

see toDimen(FixedDimen size)

Parameters:

desingsize - The design size.

fw - The fix word.

Returns:

Return the Dimen of the value.

toValue

public static long toValue(FixedDimen desingsize,
                           FixedDimen dimen)

Convert a dimen to a fix word value.

Parameters:

desingsize - The design size.

dimen - The dimen value.

Returns:

Returns the fix word value of the dimen.

getValue

public long getValue()

Return the internal value.

Returns:

the internal value

lessThan

public boolean lessThan(int num)

less than.

Parameters:

num - the value to compare

Returns:

true, if the internal values is lesser, otherwise false

moreThan

public boolean moreThan(int num)

more than.

Parameters:

num - the value to compare

Returns:

true, if the internal values are more, otherwise false

setValue

public void setValue(long v)

Set the value.

Parameters:

v - The value to set.

toDimen

public Dimen toDimen(FixedDimen size)

Convert the fixword value to a dimen value.

the simple calculation fw.getValue() * actualsize.getValue() / TFMFixWord.FIXWORDDENOMINATOR leads to different rounding than in TeX due to a limitation to 4 byte integer precission. Note that fw.getValue() * actualsize.getValue() might exceed the 4 byte range. Hence TTP 571 cancels actualsize.getValue() and TFMFixWord.FIXWORDDENOMINATOR to allow for a bytewise calculation. We do not need this bytewise calculation since we have long integers, but we need to be precise in performing the same rounding.

Parameters:

size - The font size (design size for font dimen, actual size for all others)

Returns:

Returns the Dimen value.

toDouble

public double toDouble()

Returns the value as double in untis.

Returns:

Returns the value as double in untis.

toString

public java.lang.String toString()

Return the values as String.

Overrides:

toString in class java.lang.Object

Returns:

the values as String

toStringComma

public java.lang.String toStringComma()

Returns the value as Sting in untis with comma (0.00000..).

Returns:

Returns the value as Sting in untis with comma.

toStringUnits

public java.lang.String toStringUnits()

Return the value as String in units.

It devide the value by 1000.

Returns:

the value as String in units