Package org.jfree.chart.annotations

Class CategoryLineAnnotation

java.lang.Object

org.jfree.chart.annotations.AbstractAnnotation

org.jfree.chart.annotations.CategoryLineAnnotation

All Implemented Interfaces:

Serializable, Cloneable, Annotation, CategoryAnnotation, PublicCloneable

public class CategoryLineAnnotation
extends AbstractAnnotation
implements CategoryAnnotation, Cloneable, PublicCloneable, Serializable

A line annotation that can be placed on a CategoryPlot.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CategoryLineAnnotation(Comparable category1, double value1, Comparable category2, double value2, Paint paint, Stroke stroke)	Creates a new annotation that draws a line between (category1, value1) and (category2, value2).

Method Summary

Modifier and Type	Method	Description
boolean	canEqual(Object other)	Ensures symmetry between super/subclass implementations of equals.
Object	clone()	Returns a clone of the annotation.
void	draw(Graphics2D g2, CategoryPlot plot, Rectangle2D dataArea, CategoryAxis domainAxis, ValueAxis rangeAxis)	Draws the annotation.
boolean	equals(Object obj)	Tests this object for equality with another.
Comparable	getCategory1()	Returns the category for the start of the line.
Comparable	getCategory2()	Returns the category for the end of the line.
Paint	getPaint()	Returns the paint used to draw the connecting line.
Stroke	getStroke()	Returns the stroke used to draw the connecting line.
double	getValue1()	Returns the y-value for the start of the line.
double	getValue2()	Returns the y-value for the end of the line.
int	hashCode()	Returns a hash code for this instance.
void	setCategory1(Comparable category)	Sets the category for the start of the line and sends an AnnotationChangeEvent to all registered listeners.
void	setCategory2(Comparable category)	Sets the category for the end of the line and sends an AnnotationChangeEvent to all registered listeners.
void	setPaint(Paint paint)	Sets the paint used to draw the connecting line and sends an AnnotationChangeEvent to all registered listeners.
void	setStroke(Stroke stroke)	Sets the stroke used to draw the connecting line and sends an AnnotationChangeEvent to all registered listeners.
void	setValue1(double value)	Sets the y-value for the start of the line and sends an AnnotationChangeEvent to all registered listeners.
void	setValue2(double value)	Sets the y-value for the end of the line and sends an AnnotationChangeEvent to all registered listeners.

Methods inherited from class org.jfree.chart.annotations.AbstractAnnotation

addChangeListener, fireAnnotationChanged, getNotify, hasListener, notifyListeners, removeChangeListener, setNotify

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jfree.chart.annotations.Annotation

addChangeListener, removeChangeListener

Constructor Details

CategoryLineAnnotation

public CategoryLineAnnotation(Comparable category1,
 double value1,
 Comparable category2,
 double value2,
 Paint paint,
 Stroke stroke)

Creates a new annotation that draws a line between (category1, value1) and (category2, value2).

Parameters:

category1 - the category (null not permitted).

value1 - the value (must be finite).

category2 - the category (null not permitted).

value2 - the value (must be finite).

paint - the line color (null not permitted).

stroke - the line stroke (null not permitted).

Method Details

getCategory1

public Comparable getCategory1()

Returns the category for the start of the line.

Returns:

The category for the start of the line (never null).

See Also:

• setCategory1(Comparable)

setCategory1

public void setCategory1(Comparable category)

Sets the category for the start of the line and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

category - the category (null not permitted).

See Also:

• getCategory1()

getValue1

public double getValue1()

Returns the y-value for the start of the line.

Returns:

The y-value for the start of the line.

See Also:

• setValue1(double)

setValue1

public void setValue1(double value)

Sets the y-value for the start of the line and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

value - the value (must be finite).

See Also:

• getValue1()

getCategory2

public Comparable getCategory2()

Returns the category for the end of the line.

Returns:

The category for the end of the line (never null).

See Also:

• setCategory2(Comparable)

setCategory2

public void setCategory2(Comparable category)

Sets the category for the end of the line and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

category - the category (null not permitted).

See Also:

• getCategory2()

getValue2

public double getValue2()

Returns the y-value for the end of the line.

Returns:

The y-value for the end of the line.

See Also:

• setValue2(double)

setValue2

public void setValue2(double value)

Sets the y-value for the end of the line and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

value - the value (must be finite).

See Also:

• getValue2()

getPaint

public Paint getPaint()

Returns the paint used to draw the connecting line.

Returns:

The paint (never null).

See Also:

• setPaint(Paint)

setPaint

public void setPaint(Paint paint)

Sets the paint used to draw the connecting line and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

paint - the paint (null not permitted).

See Also:

• getPaint()

getStroke

public Stroke getStroke()

Returns the stroke used to draw the connecting line.

Returns:

The stroke (never null).

See Also:

• setStroke(Stroke)

setStroke

public void setStroke(Stroke stroke)

Sets the stroke used to draw the connecting line and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

stroke - the stroke (null not permitted).

See Also:

• getStroke()

draw

public void draw(Graphics2D g2,
 CategoryPlot plot,
 Rectangle2D dataArea,
 CategoryAxis domainAxis,
 ValueAxis rangeAxis)

Draws the annotation.

Specified by:

draw in interface CategoryAnnotation

Parameters:

g2 - the graphics device.

plot - the plot.

dataArea - the data area.

domainAxis - the domain axis.

rangeAxis - the range axis.

equals

public boolean equals(Object obj)

Tests this object for equality with another.

Overrides:

equals in class AbstractAnnotation

Parameters:

obj - the object (null permitted).

Returns:

true or false.

canEqual

public boolean canEqual(Object other)

Ensures symmetry between super/subclass implementations of equals. For more detail, see http://jqno.nl/equalsverifier/manual/inheritance.

Overrides:

canEqual in class AbstractAnnotation

Parameters:

other - Object

Returns:

true ONLY if the parameter is THIS class type

hashCode

public int hashCode()

Returns a hash code for this instance.

Overrides:

hashCode in class AbstractAnnotation

Returns:

A hash code.

clone

public Object clone()
             throws CloneNotSupportedException

Returns a clone of the annotation.

Specified by:

clone in interface PublicCloneable

Overrides:

clone in class AbstractAnnotation

Returns:

A clone.

Throws:

CloneNotSupportedException - this class will not throw this exception, but subclasses (if any) might.