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org.jfree.chart
Class JFreeChart  

java.lang.Object
  org.jfree.chart.JFreeChart

All Implemented Interfaces:

java.lang.Cloneable, org.jfree.ui.Drawable, java.util.EventListener, org.jfree.chart.event.LegendChangeListener, org.jfree.chart.event.PlotChangeListener, java.io.Serializable, org.jfree.chart.event.TitleChangeListener

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public class JFreeChart

extends java.lang.Object

implements org.jfree.ui.Drawable, org.jfree.chart.event.TitleChangeListener, org.jfree.chart.event.LegendChangeListener, org.jfree.chart.event.PlotChangeListener, java.io.Serializable, java.lang.Cloneable

A chart class implemented using the Java 2D APIs. The current version supports bar charts, line charts, pie charts and xy plots (including time series data).

JFreeChart coordinates several objects to achieve its aim of being able to draw a chart on a Java 2D graphics device: a list of org.jfree.chart.title.Title objects, a OldLegend, a org.jfree.chart.plot.Plot and a org.jfree.data.general.Dataset (the plot in turn manages a horizontal axis and a vertical axis).

You should use a ChartPanel to display a chart in a GUI.

The ChartFactory class contains static methods for creating 'ready-made' charts.

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Field Summary
private  java.awt.Image	backgroundImage           An optional background image for the chart.
private  int	backgroundImageAlignment           The alignment for the background image.
private  float	backgroundImageAlpha           The alpha transparency for the background image.
private  java.awt.Paint	backgroundPaint           Paint used to draw the background of the chart.
private  java.awt.Paint	borderPaint           The paint used to draw the chart border (if visible).
private  java.awt.Stroke	borderStroke           The stroke used to draw the chart border (if visible).
private  boolean	borderVisible           A flag that controls whether or not the chart border is drawn.
private  javax.swing.event.EventListenerList	changeListeners           Storage for registered change listeners.
static java.awt.Image	DEFAULT_BACKGROUND_IMAGE           The default background image.
static int	DEFAULT_BACKGROUND_IMAGE_ALIGNMENT           The default background image alignment.
static float	DEFAULT_BACKGROUND_IMAGE_ALPHA           The default background image alpha.
static java.awt.Paint	DEFAULT_BACKGROUND_PAINT           The default background color.
static java.awt.Font	DEFAULT_TITLE_FONT           The default font for titles.
static org.jfree.ui.about.ProjectInfo	INFO           Information about the project.
private  boolean	notify           A flag that can be used to enable/disable notification of chart change events.
private  OldLegend	oldLegend           The chart legend.
private  org.jfree.chart.plot.Plot	plot           Draws the visual representation of the data.
private  javax.swing.event.EventListenerList	progressListeners           Storage for registered progress listeners.
private  java.awt.RenderingHints	renderingHints           Rendering hints that will be used for chart drawing.
private static long	serialVersionUID           For serialization.
private  java.util.List	subtitles           The chart subtitles (zero, one or many).
private  org.jfree.chart.title.TextTitle	title           The chart title (optional).

 

Constructor Summary

JFreeChart(org.jfree.chart.plot.Plot plot)           Creates a new chart based on the supplied plot.

JFreeChart(java.lang.String title, java.awt.Font titleFont, org.jfree.chart.plot.Plot plot, boolean createLegend)           Creates a new chart with the given title and plot.

JFreeChart(java.lang.String title, org.jfree.chart.plot.Plot plot)           Creates a new chart with the given title and plot.

 

Method Summary
void	addChangeListener(org.jfree.chart.event.ChartChangeListener listener)           Registers an object for notification of changes to the chart.
void	addProgressListener(org.jfree.chart.event.ChartProgressListener listener)           Registers an object for notification of progress events relating to the chart.
void	addSubtitle(org.jfree.chart.title.Title subtitle)           Adds a chart subtitle, and notifies registered listeners that the chart has been modified.
void	clearSubtitles()           Clears all subtitles from the chart and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.
java.lang.Object	clone()           Clones the object, and takes care of listeners.
private  java.awt.geom.Rectangle2D	createAlignedRectangle2D(org.jfree.ui.Size2D dimensions, java.awt.geom.Rectangle2D frame, org.jfree.ui.HorizontalAlignment hAlign, org.jfree.ui.VerticalAlignment vAlign)           Creates a rectangle that is aligned to the frame.
java.awt.image.BufferedImage	createBufferedImage(int width, int height)           Creates and returns a buffered image into which the chart has been drawn.
java.awt.image.BufferedImage	createBufferedImage(int width, int height, ChartRenderingInfo info)           Creates and returns a buffered image into which the chart has been drawn.
java.awt.image.BufferedImage	createBufferedImage(int imageWidth, int imageHeight, double drawWidth, double drawHeight, ChartRenderingInfo info)           Creates and returns a buffered image into which the chart has been drawn.
java.awt.image.BufferedImage	createBufferedImage(int width, int height, int imageType, ChartRenderingInfo info)           Creates and returns a buffered image into which the chart has been drawn.
void	draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area)           Draws the chart on a Java 2D graphics device (such as the screen or a printer).
void	draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, ChartRenderingInfo info)           Draws the chart on a Java 2D graphics device (such as the screen or a printer).
void	draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D chartArea, java.awt.geom.Point2D anchor, ChartRenderingInfo info)           Draws the chart on a Java 2D graphics device (such as the screen or a printer).
protected  org.jfree.chart.entity.EntityCollection	drawTitle(org.jfree.chart.title.Title t, java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, boolean entities)           Draws a title.
boolean	equals(java.lang.Object obj)           Tests this chart for equality with another object.
void	fireChartChanged()           Sends a default org.jfree.chart.event.ChartChangeEvent to all registered listeners.
boolean	getAntiAlias()           Returns a flag that indicates whether or not anti-aliasing is used when the chart is drawn.
java.awt.Image	getBackgroundImage()           Returns the background image for the chart, or null if there is no image.
int	getBackgroundImageAlignment()           Returns the background image alignment.
float	getBackgroundImageAlpha()           Returns the alpha-transparency for the chart's background image.
java.awt.Paint	getBackgroundPaint()           Returns the paint used for the chart background.
java.awt.Paint	getBorderPaint()           Returns the paint used to draw the chart border (if visible).
java.awt.Stroke	getBorderStroke()           Returns the stroke used to draw the chart border (if visible).
org.jfree.chart.plot.CategoryPlot	getCategoryPlot()           Returns the plot cast as a org.jfree.chart.plot.CategoryPlot.
org.jfree.chart.title.LegendTitle	getLegend()           Returns the legend for the chart, if there is one.
org.jfree.chart.title.LegendTitle	getLegend(int index)           Returns the nth legend for a chart, or null.
OldLegend	getOldLegend()           Returns the chart legend.
org.jfree.chart.plot.Plot	getPlot()           Returns the plot for the chart.
java.awt.RenderingHints	getRenderingHints()           Returns the collection of rendering hints for the chart.
org.jfree.chart.title.Title	getSubtitle(int index)           Returns a chart subtitle.
int	getSubtitleCount()           Returns the number of titles for the chart.
java.util.List	getSubtitles()           Returns the list of subtitles for the chart.
org.jfree.chart.title.TextTitle	getTitle()           Returns the main chart title.
org.jfree.chart.plot.XYPlot	getXYPlot()           Returns the plot cast as an org.jfree.chart.plot.XYPlot.
void	handleClick(int x, int y, ChartRenderingInfo info)           Handles a 'click' on the chart.
boolean	isBorderVisible()           Returns a flag that controls whether or not a border is drawn around the outside of the chart.
boolean	isNotify()           Returns a flag that controls whether or not change events are sent to registered listeners.
void	legendChanged(org.jfree.chart.event.LegendChangeEvent event)           Receives notification that the chart legend has changed, and passes this on to registered listeners.
static void	main(java.lang.String[] args)           Prints information about JFreeChart to standard output.
protected  void	notifyListeners(org.jfree.chart.event.ChartChangeEvent event)           Sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.
protected  void	notifyListeners(org.jfree.chart.event.ChartProgressEvent event)           Sends a org.jfree.chart.event.ChartProgressEvent to all registered listeners.
void	plotChanged(org.jfree.chart.event.PlotChangeEvent event)           Receives notification that the plot has changed, and passes this on to registered listeners.
private  void	readObject(java.io.ObjectInputStream stream)           Provides serialization support.
void	removeChangeListener(org.jfree.chart.event.ChartChangeListener listener)           Deregisters an object for notification of changes to the chart.
void	removeLegend()           Removes the first legend in the chart and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.
void	removeProgressListener(org.jfree.chart.event.ChartProgressListener listener)           Deregisters an object for notification of changes to the chart.
void	removeSubtitle(org.jfree.chart.title.Title title)           Removes the specified subtitle and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.
void	setAntiAlias(boolean flag)           Sets a flag that indicates whether or not anti-aliasing is used when the chart is drawn.
void	setBackgroundImage(java.awt.Image image)           Sets the background image for the chart and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.
void	setBackgroundImageAlignment(int alignment)           Sets the background alignment.
void	setBackgroundImageAlpha(float alpha)           Sets the alpha-transparency for the chart's background image.
void	setBackgroundPaint(java.awt.Paint paint)           Sets the paint used to fill the chart background and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.
void	setBorderPaint(java.awt.Paint paint)           Sets the paint used to draw the chart border (if visible).
void	setBorderStroke(java.awt.Stroke stroke)           Sets the stroke used to draw the chart border (if visible).
void	setBorderVisible(boolean visible)           Sets a flag that controls whether or not a border is drawn around the outside of the chart.
void	setNotify(boolean notify)           Sets a flag that controls whether or not listeners receive org.jfree.chart.event.ChartChangeEvent notifications.
void	setOldLegend(OldLegend legend)           Sets the chart legend.
void	setRenderingHints(java.awt.RenderingHints renderingHints)           Sets the rendering hints for the chart.
void	setSubtitles(java.util.List subtitles)           Sets the title list for the chart (completely replaces any existing titles).
void	setTitle(java.lang.String text)           Sets the chart title and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.
void	setTitle(org.jfree.chart.title.TextTitle title)           Sets the main title for the chart and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.
void	titleChanged(org.jfree.chart.event.TitleChangeEvent event)           Receives notification that a chart title has changed, and passes this on to registered listeners.
private  void	writeObject(java.io.ObjectOutputStream stream)           Provides serialization support.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

serialVersionUID

private static final long serialVersionUID

For serialization.

See Also:

Constant Field Values

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INFO

public static final org.jfree.ui.about.ProjectInfo INFO

Information about the project.

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DEFAULT_TITLE_FONT

public static final java.awt.Font DEFAULT_TITLE_FONT

The default font for titles.

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DEFAULT_BACKGROUND_PAINT

public static final java.awt.Paint DEFAULT_BACKGROUND_PAINT

The default background color.

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DEFAULT_BACKGROUND_IMAGE

public static final java.awt.Image DEFAULT_BACKGROUND_IMAGE

The default background image.

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DEFAULT_BACKGROUND_IMAGE_ALIGNMENT

public static final int DEFAULT_BACKGROUND_IMAGE_ALIGNMENT

The default background image alignment.

See Also:

Constant Field Values

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DEFAULT_BACKGROUND_IMAGE_ALPHA

public static final float DEFAULT_BACKGROUND_IMAGE_ALPHA

The default background image alpha.

See Also:

Constant Field Values

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renderingHints

private transient java.awt.RenderingHints renderingHints

Rendering hints that will be used for chart drawing.

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borderVisible

private boolean borderVisible

A flag that controls whether or not the chart border is drawn.

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borderStroke

private transient java.awt.Stroke borderStroke

The stroke used to draw the chart border (if visible).

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borderPaint

private transient java.awt.Paint borderPaint

The paint used to draw the chart border (if visible).

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title

private org.jfree.chart.title.TextTitle title

The chart title (optional).

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subtitles

private java.util.List subtitles

The chart subtitles (zero, one or many).

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oldLegend

private OldLegend oldLegend

The chart legend.

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plot

private org.jfree.chart.plot.Plot plot

Draws the visual representation of the data.

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backgroundPaint

private transient java.awt.Paint backgroundPaint

Paint used to draw the background of the chart.

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backgroundImage

private transient java.awt.Image backgroundImage

An optional background image for the chart.

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backgroundImageAlignment

private int backgroundImageAlignment

The alignment for the background image.

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backgroundImageAlpha

private float backgroundImageAlpha

The alpha transparency for the background image.

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changeListeners

private transient javax.swing.event.EventListenerList changeListeners

Storage for registered change listeners.

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progressListeners

private transient javax.swing.event.EventListenerList progressListeners

Storage for registered progress listeners.

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notify

private boolean notify

A flag that can be used to enable/disable notification of chart change events.

Constructor Detail

JFreeChart

public JFreeChart(org.jfree.chart.plot.Plot plot)

Creates a new chart based on the supplied plot. The chart will have a legend added automatically, but no title (although you can easily add one later).

Note that the ChartFactory class contains a range of static methods that will return ready-made charts, and often this is a more convenient way to create charts than using this constructor.

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JFreeChart

public JFreeChart(java.lang.String title,
                  org.jfree.chart.plot.Plot plot)

Creates a new chart with the given title and plot. A default font (@link DEFAULT_TITLE_FONT) is used for the title, and the chart will have a legend added automatically.

Note that the ChartFactory class contains a range of static methods that will return ready-made charts, and often this is a more convenient way to create charts than using this constructor.

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JFreeChart

public JFreeChart(java.lang.String title,
                  java.awt.Font titleFont,
                  org.jfree.chart.plot.Plot plot,
                  boolean createLegend)

Creates a new chart with the given title and plot. The createLegend argument specifies whether or not a legend should be added to the chart.

Note that the ChartFactory class contains a range of static methods that will return ready-made charts, and often this is a more convenient way to create charts than using this constructor.

Method Detail

getRenderingHints

public java.awt.RenderingHints getRenderingHints()

Returns the collection of rendering hints for the chart.

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setRenderingHints

public void setRenderingHints(java.awt.RenderingHints renderingHints)

Sets the rendering hints for the chart. These will be added (using the Graphics2D.addRenderingHints() method) near the start of the JFreeChart.draw() method.

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isBorderVisible

public boolean isBorderVisible()

Returns a flag that controls whether or not a border is drawn around the outside of the chart.

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setBorderVisible

public void setBorderVisible(boolean visible)

Sets a flag that controls whether or not a border is drawn around the outside of the chart.

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getBorderStroke

public java.awt.Stroke getBorderStroke()

Returns the stroke used to draw the chart border (if visible).

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setBorderStroke

public void setBorderStroke(java.awt.Stroke stroke)

Sets the stroke used to draw the chart border (if visible).

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getBorderPaint

public java.awt.Paint getBorderPaint()

Returns the paint used to draw the chart border (if visible).

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setBorderPaint

public void setBorderPaint(java.awt.Paint paint)

Sets the paint used to draw the chart border (if visible).

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getTitle

public org.jfree.chart.title.TextTitle getTitle()

Returns the main chart title. Very often a chart will have just one title, so we make this case simple by providing accessor methods for the main title. However, multiple titles are supported - see the addSubtitle(Title) 55 method.

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setTitle

public void setTitle(org.jfree.chart.title.TextTitle title)

Sets the main title for the chart and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners. If you do not want a title for the chart, set it to null. If you want more than one title on a chart, use the addSubtitle(Title) 55 method.

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setTitle

public void setTitle(java.lang.String text)

Sets the chart title and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners. This is a convenience method that ends up calling the setTitle(TextTitle) 55 method. If there is an existing title, its text is updated, otherwise a new title using the default font is added to the chart. If text is null the chart title is set to null.

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getLegend

public org.jfree.chart.title.LegendTitle getLegend()

Returns the legend for the chart, if there is one. Note that a chart can have more than one legend - this method returns the first.

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getLegend

public org.jfree.chart.title.LegendTitle getLegend(int index)

Returns the nth legend for a chart, or null.

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removeLegend

public void removeLegend()

Removes the first legend in the chart and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.

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getSubtitles

public java.util.List getSubtitles()

Returns the list of subtitles for the chart.

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setSubtitles

public void setSubtitles(java.util.List subtitles)

Sets the title list for the chart (completely replaces any existing titles).

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getSubtitleCount

public int getSubtitleCount()

Returns the number of titles for the chart.

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getSubtitle

public org.jfree.chart.title.Title getSubtitle(int index)

Returns a chart subtitle.

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addSubtitle

public void addSubtitle(org.jfree.chart.title.Title subtitle)

Adds a chart subtitle, and notifies registered listeners that the chart has been modified.

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clearSubtitles

public void clearSubtitles()

Clears all subtitles from the chart and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.

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removeSubtitle

public void removeSubtitle(org.jfree.chart.title.Title title)

Removes the specified subtitle and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.

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getOldLegend

public OldLegend getOldLegend()

Returns the chart legend.

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setOldLegend

public void setOldLegend(OldLegend legend)

Sets the chart legend. Registered listeners are notified that the chart has been modified. The legends chart reference is updated.

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getPlot

public org.jfree.chart.plot.Plot getPlot()

Returns the plot for the chart. The plot is a class responsible for coordinating the visual representation of the data, including the axes (if any).

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getCategoryPlot

public org.jfree.chart.plot.CategoryPlot getCategoryPlot()

Returns the plot cast as a org.jfree.chart.plot.CategoryPlot.

NOTE: if the plot is not an instance of org.jfree.chart.plot.CategoryPlot, then a ClassCastException is thrown.

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getXYPlot

public org.jfree.chart.plot.XYPlot getXYPlot()

Returns the plot cast as an org.jfree.chart.plot.XYPlot.

NOTE: if the plot is not an instance of org.jfree.chart.plot.XYPlot, then a ClassCastException is thrown.

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getAntiAlias

public boolean getAntiAlias()

Returns a flag that indicates whether or not anti-aliasing is used when the chart is drawn.

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setAntiAlias

public void setAntiAlias(boolean flag)

Sets a flag that indicates whether or not anti-aliasing is used when the chart is drawn.

Anti-aliasing usually improves the appearance of charts, but is slower.

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getBackgroundPaint

public java.awt.Paint getBackgroundPaint()

Returns the paint used for the chart background.

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setBackgroundPaint

public void setBackgroundPaint(java.awt.Paint paint)

Sets the paint used to fill the chart background and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.

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getBackgroundImage

public java.awt.Image getBackgroundImage()

Returns the background image for the chart, or null if there is no image.

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setBackgroundImage

public void setBackgroundImage(java.awt.Image image)

Sets the background image for the chart and sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.

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getBackgroundImageAlignment

public int getBackgroundImageAlignment()

Returns the background image alignment. Alignment constants are defined in the org.jfree.ui.Align class in the JCommon class library.

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setBackgroundImageAlignment

public void setBackgroundImageAlignment(int alignment)

Sets the background alignment. Alignment options are defined by the org.jfree.ui.Align class.

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getBackgroundImageAlpha

public float getBackgroundImageAlpha()

Returns the alpha-transparency for the chart's background image.

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setBackgroundImageAlpha

public void setBackgroundImageAlpha(float alpha)

Sets the alpha-transparency for the chart's background image. Registered listeners are notified that the chart has been changed.

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isNotify

public boolean isNotify()

Returns a flag that controls whether or not change events are sent to registered listeners.

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setNotify

public void setNotify(boolean notify)

Sets a flag that controls whether or not listeners receive org.jfree.chart.event.ChartChangeEvent notifications.

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draw

public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Rectangle2D area)

Draws the chart on a Java 2D graphics device (such as the screen or a printer).

This method is the focus of the entire JFreeChart library.

Specified by:

draw in interface org.jfree.ui.Drawable

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draw

public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Rectangle2D area,
                 ChartRenderingInfo info)

Draws the chart on a Java 2D graphics device (such as the screen or a printer). This method is the focus of the entire JFreeChart library.

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draw

public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Rectangle2D chartArea,
                 java.awt.geom.Point2D anchor,
                 ChartRenderingInfo info)

Draws the chart on a Java 2D graphics device (such as the screen or a printer).

This method is the focus of the entire JFreeChart library.

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createAlignedRectangle2D

private java.awt.geom.Rectangle2D createAlignedRectangle2D(org.jfree.ui.Size2D dimensions,
                                                           java.awt.geom.Rectangle2D frame,
                                                           org.jfree.ui.HorizontalAlignment hAlign,
                                                           org.jfree.ui.VerticalAlignment vAlign)

Creates a rectangle that is aligned to the frame.

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drawTitle

protected org.jfree.chart.entity.EntityCollection drawTitle(org.jfree.chart.title.Title t,
                                                            java.awt.Graphics2D g2,
                                                            java.awt.geom.Rectangle2D area,
                                                            boolean entities)

Draws a title. The title should be drawn at the top, bottom, left or right of the specified area, and the area should be updated to reflect the amount of space used by the title.

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createBufferedImage

public java.awt.image.BufferedImage createBufferedImage(int width,
                                                        int height)

Creates and returns a buffered image into which the chart has been drawn.

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createBufferedImage

public java.awt.image.BufferedImage createBufferedImage(int width,
                                                        int height,
                                                        ChartRenderingInfo info)

Creates and returns a buffered image into which the chart has been drawn.

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createBufferedImage

public java.awt.image.BufferedImage createBufferedImage(int width,
                                                        int height,
                                                        int imageType,
                                                        ChartRenderingInfo info)

Creates and returns a buffered image into which the chart has been drawn.

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createBufferedImage

public java.awt.image.BufferedImage createBufferedImage(int imageWidth,
                                                        int imageHeight,
                                                        double drawWidth,
                                                        double drawHeight,
                                                        ChartRenderingInfo info)

Creates and returns a buffered image into which the chart has been drawn.

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handleClick

public void handleClick(int x,
                        int y,
                        ChartRenderingInfo info)

Handles a 'click' on the chart.

JFreeChart is not a UI component, so some other object (e.g. ChartPanel) needs to capture the click event and pass it onto the JFreeChart object. If you are not using JFreeChart in a client application, then this method is not required (and hopefully it doesn't get in the way).

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addChangeListener

public void addChangeListener(org.jfree.chart.event.ChartChangeListener listener)

Registers an object for notification of changes to the chart.

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removeChangeListener

public void removeChangeListener(org.jfree.chart.event.ChartChangeListener listener)

Deregisters an object for notification of changes to the chart.

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fireChartChanged

public void fireChartChanged()

Sends a default org.jfree.chart.event.ChartChangeEvent to all registered listeners.

This method is for convenience only.

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notifyListeners

protected void notifyListeners(org.jfree.chart.event.ChartChangeEvent event)

Sends a org.jfree.chart.event.ChartChangeEvent to all registered listeners.

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addProgressListener

public void addProgressListener(org.jfree.chart.event.ChartProgressListener listener)

Registers an object for notification of progress events relating to the chart.

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removeProgressListener

public void removeProgressListener(org.jfree.chart.event.ChartProgressListener listener)

Deregisters an object for notification of changes to the chart.

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notifyListeners

protected void notifyListeners(org.jfree.chart.event.ChartProgressEvent event)

Sends a org.jfree.chart.event.ChartProgressEvent to all registered listeners.

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titleChanged

public void titleChanged(org.jfree.chart.event.TitleChangeEvent event)

Receives notification that a chart title has changed, and passes this on to registered listeners.

Specified by:

titleChanged in interface org.jfree.chart.event.TitleChangeListener

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legendChanged

public void legendChanged(org.jfree.chart.event.LegendChangeEvent event)

Receives notification that the chart legend has changed, and passes this on to registered listeners.

Specified by:

legendChanged in interface org.jfree.chart.event.LegendChangeListener

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plotChanged

public void plotChanged(org.jfree.chart.event.PlotChangeEvent event)

Receives notification that the plot has changed, and passes this on to registered listeners.

Specified by:

plotChanged in interface org.jfree.chart.event.PlotChangeListener

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equals

public boolean equals(java.lang.Object obj)

Tests this chart for equality with another object.

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writeObject

private void writeObject(java.io.ObjectOutputStream stream)
                  throws java.io.IOException

Provides serialization support.

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readObject

private void readObject(java.io.ObjectInputStream stream)
                 throws java.io.IOException,
                        java.lang.ClassNotFoundException

Provides serialization support.

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main

public static void main(java.lang.String[] args)

Prints information about JFreeChart to standard output.

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clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Clones the object, and takes care of listeners. Note: caller shall register its own listeners on cloned graph.

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