Class AbstractRigidBox

java.lang.Object
  |
  +--AbstractBox
        |
        +--AbstractRigidBox

All Implemented Interfaces:

Box, RigidBox

Direct Known Subclasses:

Break, HorizontalRule, ImageBox, RigidBoxGroup, TextFragment

public abstract class AbstractRigidBox

extends AbstractBox

implements RigidBox

Adaptor class for rigid boxes. It implements all methods specified in Box.

Field Summary

protected java.awt.Graphics

pen The Graphics context used when drawing this rigid box.

Fields inherited from class AbstractBox

height, min_width, pref_width, width

Fields inherited from interface RigidBox

BOTH, LEFT, RIGHT

Constructor Summary

AbstractRigidBox()

Method Summary

Box	getLargestTail() Tries to make the largest right part from a split.
Box	getSmallestHead() Tries to make the smallest left part from a split.
Box	splitHead(int w) Tries to split the box at w.
boolean	splitIsPossible(int w) Reports wether or not the box can be split at w.
Box	splitTail(int w) Tries to split the box at w.
void	trim(int edge) Pretends to trim the box - it does nothing as the body of the method is empty.

Methods inherited from class AbstractBox

doLayout, drawAt, getHeight, getMinimumWidth, getPreferredWidth, getWidth, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface Box

doLayout, drawAt, getHeight, getMinimumWidth, getPreferredWidth, getWidth, toString

Field Detail

pen

protected java.awt.Graphics pen

The Graphics context used when drawing this rigid box.

Constructor Detail

AbstractRigidBox

public AbstractRigidBox()

Method Detail

splitIsPossible

public boolean splitIsPossible(int w)

Reports wether or not the box can be split at w.

Specified by:

splitIsPossible in interface RigidBox

Parameters:

w - the place where the split should be.

Returns:

true if w is greather than the value returned by AbstractBox.getMinimumWidth().

splitHead

public Box splitHead(int w)

Tries to split the box at w.

Specified by:

splitHead in interface RigidBox

Parameters:

w - the place where the split should be.

Returns:

always null to indicate that the box can't be split.

splitTail

public Box splitTail(int w)

Tries to split the box at w.

Specified by:

splitTail in interface RigidBox

Parameters:

w - the place where the split should be.

Returns:

always null to indicate that the box can't be split.

getSmallestHead

public Box getSmallestHead()

Tries to make the smallest left part from a split.

Specified by:

getSmallestHead in interface RigidBox

Returns:

always null to indicate that the box can't be split.

getLargestTail

public Box getLargestTail()

Tries to make the largest right part from a split.

Specified by:

getLargestTail in interface RigidBox

Returns:

always null to indicate that the box can't be split.

trim

public void trim(int edge)

Pretends to trim the box - it does nothing as the body of the method is empty.

Specified by:

trim in interface RigidBox

Parameters:

edge - to be trimmed. The value is discarded.