org.jfree.chart.entity

Class ChartEntity

java.lang.Object

org.jfree.chart.entity.ChartEntity

All Implemented Interfaces:

Serializable, Cloneable, org.jfree.util.PublicCloneable

Direct Known Subclasses:

AxisEntity, CategoryItemEntity, ContourEntity, JFreeChartEntity, LegendItemEntity, PieSectionEntity, PlotEntity, TickLabelEntity, TitleEntity, XYAnnotationEntity, XYItemEntity

public class ChartEntity
extends Object
implements Cloneable, org.jfree.util.PublicCloneable, Serializable

A class that captures information about some component of a chart (a bar, line etc).

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ChartEntity(Shape area) Creates a new chart entity.
ChartEntity(Shape area, String toolTipText) Creates a new chart entity.
ChartEntity(Shape area, String toolTipText, String urlText) Creates a new entity.

Method Summary

Methods

Modifier and Type	Method and Description
Object	clone() Returns a clone of the entity.
boolean	equals(Object obj) Tests the entity for equality with an arbitrary object.
Shape	getArea() Returns the area occupied by the entity (in Java 2D space).
String	getImageMapAreaTag(ToolTipTagFragmentGenerator toolTipTagFragmentGenerator, URLTagFragmentGenerator urlTagFragmentGenerator) Returns an HTML image map tag for this entity.
String	getShapeCoords() Returns the shape coordinates as a string.
String	getShapeType() Returns a string describing the entity area.
String	getToolTipText() Returns the tool tip text for the entity.
String	getURLText() Returns the URL text for the entity.
int	hashCode() Returns a hash code for this instance.
void	setArea(Shape area) Sets the area for the entity.
void	setToolTipText(String text) Sets the tool tip text.
void	setURLText(String text) Sets the URL text.
String	toString() Returns a string representation of the chart entity, useful for debugging.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChartEntity

public ChartEntity(Shape area)

Creates a new chart entity.

Parameters:

area - the area (null not permitted).

ChartEntity

public ChartEntity(Shape area,
           String toolTipText)

Creates a new chart entity.

Parameters:

area - the area (null not permitted).

toolTipText - the tool tip text (null permitted).

ChartEntity

public ChartEntity(Shape area,
           String toolTipText,
           String urlText)

Creates a new entity.

Parameters:

area - the area (null not permitted).

toolTipText - the tool tip text (null permitted).

urlText - the URL text for HTML image maps (null permitted).

Method Detail

getArea

public Shape getArea()

Returns the area occupied by the entity (in Java 2D space).

Returns:

The area (never null).

setArea

public void setArea(Shape area)

Sets the area for the entity.

This class conveys information about chart entities back to a client. Setting this area doesn't change the entity (which has already been drawn).

Parameters:

area - the area (null not permitted).

getToolTipText

public String getToolTipText()

Returns the tool tip text for the entity. Be aware that this text may have been generated from user supplied data, so for security reasons some form of filtering should be applied before incorporating this text into any HTML output.

Returns:

The tool tip text (possibly null).

setToolTipText

public void setToolTipText(String text)

Sets the tool tip text.

Parameters:

text - the text (null permitted).

getURLText

public String getURLText()

Returns the URL text for the entity. Be aware that this text may have been generated from user supplied data, so some form of filtering should be applied before this "URL" is used in any output.

Returns:

The URL text (possibly null).

setURLText

public void setURLText(String text)

Sets the URL text.

Parameters:

text - the text (null permitted).

getShapeType

public String getShapeType()

Returns a string describing the entity area. This string is intended for use in an AREA tag when generating an image map.

Returns:

The shape type (never null).

getShapeCoords

public String getShapeCoords()

Returns the shape coordinates as a string.

Returns:

The shape coordinates (never null).

getImageMapAreaTag

public String getImageMapAreaTag(ToolTipTagFragmentGenerator toolTipTagFragmentGenerator,
                        URLTagFragmentGenerator urlTagFragmentGenerator)

Returns an HTML image map tag for this entity. The returned fragment should be XHTML 1.0 compliant.

Parameters:

toolTipTagFragmentGenerator - a generator for the HTML fragment that will contain the tooltip text (null not permitted if this entity contains tooltip information).

urlTagFragmentGenerator - a generator for the HTML fragment that will contain the URL reference (null not permitted if this entity has a URL).

Returns:

The HTML tag.

toString

public String toString()

Returns a string representation of the chart entity, useful for debugging.

Overrides:

toString in class Object

Returns:

A string.

equals

public boolean equals(Object obj)

Tests the entity for equality with an arbitrary object.

Overrides:

equals in class Object

Parameters:

obj - the object to test against (null permitted).

Returns:

A boolean.

hashCode

public int hashCode()

Returns a hash code for this instance.

Overrides:

hashCode in class Object

Returns:

A hash code.

clone

public Object clone()
             throws CloneNotSupportedException

Returns a clone of the entity.

Specified by:

clone in interface org.jfree.util.PublicCloneable

Overrides:

clone in class Object

Returns:

A clone.

Throws:

CloneNotSupportedException - if there is a problem cloning the entity.