Module platform

Package org.jfree.chart.annotations

Class CategoryTextAnnotation

java.lang.Object

org.jfree.chart.annotations.AbstractAnnotation

org.jfree.chart.annotations.TextAnnotation

org.jfree.chart.annotations.CategoryTextAnnotation

All Implemented Interfaces:

Serializable, Cloneable, Annotation, CategoryAnnotation, PublicCloneable

Direct Known Subclasses:

CategoryPointerAnnotation

public class CategoryTextAnnotation
extends TextAnnotation
implements CategoryAnnotation, Cloneable, PublicCloneable, Serializable

A text annotation that can be placed on a CategoryPlot.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.jfree.chart.annotations.TextAnnotation

DEFAULT_FONT, DEFAULT_PAINT, DEFAULT_ROTATION_ANCHOR, DEFAULT_ROTATION_ANGLE, DEFAULT_TEXT_ANCHOR

Constructor Summary

Constructors

Constructor	Description
CategoryTextAnnotation(String text, Comparable category, double value)	Creates a new annotation to be displayed at the given location.

Method Summary

Modifier and Type	Method	Description
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	getCategory()	Returns the category.
CategoryAnchor	getCategoryAnchor()	Returns the category anchor point.
double	getValue()	Returns the value that the annotation attaches to.
int	hashCode()	Returns a hash code for this instance.
void	setCategory(Comparable category)	Sets the category that the annotation attaches to and sends an AnnotationChangeEvent to all registered listeners.
void	setCategoryAnchor(CategoryAnchor anchor)	Sets the category anchor point and sends an AnnotationChangeEvent to all registered listeners.
void	setValue(double value)	Sets the value and sends an AnnotationChangeEvent to all registered listeners.

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

getFont, getPaint, getRotationAnchor, getRotationAngle, getText, getTextAnchor, setFont, setPaint, setRotationAnchor, setRotationAngle, setText, setTextAnchor

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

CategoryTextAnnotation

public CategoryTextAnnotation(String text,
 Comparable category,
 double value)

Creates a new annotation to be displayed at the given location.

Parameters:

text - the text (null not permitted).

category - the category (null not permitted).

value - the value.

Method Details

getCategory

public Comparable getCategory()

Returns the category.

Returns:

The category (never null).

See Also:

• setCategory(Comparable)

setCategory

public void setCategory(Comparable category)

Sets the category that the annotation attaches to and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

category - the category (null not permitted).

See Also:

• getCategory()

getCategoryAnchor

public CategoryAnchor getCategoryAnchor()

Returns the category anchor point.

Returns:

The category anchor point.

See Also:

• setCategoryAnchor(CategoryAnchor)

setCategoryAnchor

public void setCategoryAnchor(CategoryAnchor anchor)

Sets the category anchor point and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

anchor - the anchor point (null not permitted).

See Also:

• getCategoryAnchor()

getValue

public double getValue()

Returns the value that the annotation attaches to.

Returns:

The value.

See Also:

• setValue(double)

setValue

public void setValue(double value)

Sets the value and sends an AnnotationChangeEvent to all registered listeners.

Parameters:

value - the value.

See Also:

• getValue()

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 TextAnnotation

Parameters:

obj - the object (null permitted).

Returns:

true or false.

hashCode

public int hashCode()

Returns a hash code for this instance.

Overrides:

hashCode in class TextAnnotation

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.