Module org.jfree.chart

Package org.jfree.chart.renderer

Class LookupPaintScale

java.lang.Object

org.jfree.chart.renderer.LookupPaintScale

All Implemented Interfaces:

Serializable, Cloneable, PublicCloneable, PaintScale

public class LookupPaintScale
extends Object
implements PaintScale, PublicCloneable, Serializable

A paint scale that uses a lookup table to associate paint instances with data value ranges.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
LookupPaintScale()	Creates a new paint scale.
LookupPaintScale(double lowerBound, double upperBound, Paint defaultPaint)	Creates a new paint scale with the specified default paint.

Method Summary

Modifier and Type	Method	Description
void	add(double value, Paint paint)	Adds an entry to the lookup table.
Object	clone()	Returns a clone of the instance.
boolean	equals(Object obj)	Tests this instance for equality with an arbitrary object.
Paint	getDefaultPaint()	Returns the default paint (never null).
double	getLowerBound()	Returns the lower bound.
Paint	getPaint(double value)	Returns the paint associated with the specified value.
double	getUpperBound()	Returns the upper bound.

Methods inherited from class java.lang.Object

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

Constructor Detail

LookupPaintScale

public LookupPaintScale()

Creates a new paint scale.

LookupPaintScale

public LookupPaintScale(double lowerBound,
                        double upperBound,
                        Paint defaultPaint)

Creates a new paint scale with the specified default paint.

Parameters:

lowerBound - the lower bound.

upperBound - the upper bound.

defaultPaint - the default paint (null not permitted).

Method Detail

getDefaultPaint

public Paint getDefaultPaint()

Returns the default paint (never null).

Returns:

The default paint.

getLowerBound

public double getLowerBound()

Returns the lower bound.

Specified by:

getLowerBound in interface PaintScale

Returns:

The lower bound.

See Also:

getUpperBound()

getUpperBound

public double getUpperBound()

Returns the upper bound.

Specified by:

getUpperBound in interface PaintScale

Returns:

The upper bound.

See Also:

getLowerBound()

add

public void add(double value,
                Paint paint)

Adds an entry to the lookup table. Any values from n up to but not including the next value in the table take on the specified Paint.

Parameters:

value - the data value.

paint - the paint.

getPaint

public Paint getPaint(double value)

Returns the paint associated with the specified value.

Specified by:

getPaint in interface PaintScale

Parameters:

value - the value.

Returns:

The paint.

See Also:

getDefaultPaint()

equals

public boolean equals(Object obj)

Tests this instance for equality with an arbitrary object.

Overrides:

equals in class Object

Parameters:

obj - the object (null permitted).

Returns:

A boolean.

clone

public Object clone()
             throws CloneNotSupportedException

Returns a clone of the instance.

Specified by:

clone in interface PublicCloneable

Overrides:

clone in class Object

Returns:

A clone.

Throws:

CloneNotSupportedException - if there is a problem cloning the instance.