org.apache.fop.layoutmgr
Class KnuthGlue
An instance of this class represents a piece of content with adjustable
width: for example a space between words of justified text.
A KnuthGlue is a feasible breaking point only if it immediately follows
a KnuthBox.
The represented piece of content is suppressed if either the KnuthGlue
is a chosen breaking point or there isn't any KnuthBox between the
previous breaking point and the KnuthGlue itself.
So, an unsuppressible piece of content with adjustable width, for example
a leader or a word with adjustable letter space, cannot be represented
by a single KnuthGlue; it can be represented using the sequence:
KnuthBox(width = 0)
KnuthPenalty(width = 0, penalty = infinity)
KnuthGlue(...)
KnuthBox(width = 0)
where the infinity penalty avoids choosing the KnuthGlue as a breaking point
and the 0-width KnuthBoxes prevent suppression.
Besides the inherited methods and attributes, this class has two attributes
used to store the stretchability (difference between max and opt width) and
the shrinkability (difference between opt and min width), and the methods
to get these values.
KnuthGlue
public KnuthGlue(int w,
int y,
int z,
int iAdjClass,
Position pos,
boolean bAux)
KnuthGlue
public KnuthGlue(int w,
int y,
int z,
Position pos,
boolean bAux)
Create a new KnuthGlue.
w
- the width of this gluey
- the stretchability of this gluez
- the shrinkability of this gluepos
- the Position stored in this gluebAux
- is this glue auxiliary?
getAdjustmentClass
public int getAdjustmentClass()
- the adjustment class (or role) of this glue.
getY
public int getY()
- getY in interface KnuthElement
- the stretchability of this glue.
getZ
public int getZ()
- getZ in interface KnuthElement
- the shrinkability of this glue.
toString
public String toString()
Copyright 1999-2008 The Apache Software Foundation. All Rights Reserved.