Package org.jfree.chart.plot

Class MultiplePiePlot

java.lang.Object

org.jfree.chart.plot.Plot

org.jfree.chart.plot.MultiplePiePlot

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.EventListener, AnnotationChangeListener, AxisChangeListener, MarkerChangeListener, LegendItemSource, PublicCloneable, DatasetChangeListener

public class MultiplePiePlot
extends Plot
implements java.lang.Cloneable, java.io.Serializable

A plot that displays multiple pie plots using data from a CategoryDataset.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.Comparable	aggregatedItemsKey	The key for the aggregated items.
private java.awt.Paint	aggregatedItemsPaint	The paint for the aggregated items.
private TableOrder	dataExtractOrder	The data extract order (by row or by column).
private CategoryDataset	dataset	The dataset.
private java.awt.Shape	legendItemShape	The legend item shape (never null).
private double	limit	The pie section limit percentage.
private JFreeChart	pieChart	The chart object that draws the individual pie charts.
private java.util.Map	sectionPaints	The colors to use for each section.
private static long	serialVersionUID	For serialization.

Fields inherited from class org.jfree.chart.plot.Plot

DEFAULT_BACKGROUND_ALPHA, DEFAULT_BACKGROUND_PAINT, DEFAULT_FOREGROUND_ALPHA, DEFAULT_INSETS, DEFAULT_LEGEND_ITEM_BOX, DEFAULT_LEGEND_ITEM_CIRCLE, DEFAULT_OUTLINE_PAINT, DEFAULT_OUTLINE_STROKE, MINIMUM_HEIGHT_TO_DRAW, MINIMUM_WIDTH_TO_DRAW, ZERO

Constructor Summary

Constructors

Constructor	Description
MultiplePiePlot()	Creates a new plot with no data.
MultiplePiePlot(CategoryDataset dataset)	Creates a new plot.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	clone()	Returns a clone of the plot.
void	draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, java.awt.geom.Point2D anchor, PlotState parentState, PlotRenderingInfo info)	Draws the plot on a Java 2D graphics device (such as the screen or a printer).
boolean	equals(java.lang.Object obj)	Tests this plot for equality with an arbitrary object.
java.lang.Comparable	getAggregatedItemsKey()	Returns the key for aggregated items in the pie plots, if there are any.
java.awt.Paint	getAggregatedItemsPaint()	Returns the paint used to draw the pie section representing the aggregated items.
TableOrder	getDataExtractOrder()	Returns the data extract order (by row or by column).
CategoryDataset	getDataset()	Returns the dataset used by the plot.
LegendItemCollection	getLegendItems()	Returns a collection of legend items for the pie chart.
java.awt.Shape	getLegendItemShape()	Returns the shape used for legend items.
double	getLimit()	Returns the limit (as a percentage) below which small pie sections are aggregated.
JFreeChart	getPieChart()	Returns the pie chart that is used to draw the individual pie plots.
java.lang.String	getPlotType()	Returns a short string describing the type of plot.
private void	prefetchSectionPaints()	For each key in the dataset, check the sectionPaints cache to see if a paint is associated with that key and, if not, fetch one from the drawing supplier.
private void	readObject(java.io.ObjectInputStream stream)	Provides serialization support.
void	setAggregatedItemsKey(java.lang.Comparable key)	Sets the key for aggregated items in the pie plots.
void	setAggregatedItemsPaint(java.awt.Paint paint)	Sets the paint used to draw the pie section representing the aggregated items and sends a PlotChangeEvent to all registered listeners.
void	setDataExtractOrder(TableOrder order)	Sets the data extract order (by row or by column) and sends a PlotChangeEvent to all registered listeners.
void	setDataset(CategoryDataset dataset)	Sets the dataset used by the plot and sends a PlotChangeEvent to all registered listeners.
void	setLegendItemShape(java.awt.Shape shape)	Sets the shape used for legend items and sends a PlotChangeEvent to all registered listeners.
void	setLimit(double limit)	Sets the limit below which pie sections are aggregated.
void	setPieChart(JFreeChart pieChart)	Sets the chart that is used to draw the individual pie plots.
private void	writeObject(java.io.ObjectOutputStream stream)	Provides serialization support.

Methods inherited from class org.jfree.chart.plot.Plot

addChangeListener, annotationChanged, axisChanged, canEqual, createAndAddEntity, datasetChanged, drawBackground, drawBackgroundImage, drawNoDataMessage, drawOutline, fetchElementHintingFlag, fillBackground, fillBackground, fireChangeEvent, getBackgroundAlpha, getBackgroundImage, getBackgroundImageAlignment, getBackgroundImageAlpha, getBackgroundPaint, getChart, getDatasetGroup, getDrawingSupplier, getForegroundAlpha, getInsets, getNoDataMessage, getNoDataMessageFont, getNoDataMessagePaint, getOutlinePaint, getOutlineStroke, getParent, getRectX, getRectY, getRootPlot, handleClick, hashCode, isNotify, isOutlineVisible, isSubplot, markerChanged, notifyListeners, removeChangeListener, resolveDomainAxisLocation, resolveRangeAxisLocation, setBackgroundAlpha, setBackgroundImage, setBackgroundImageAlignment, setBackgroundImageAlpha, setBackgroundPaint, setChart, setDatasetGroup, setDrawingSupplier, setDrawingSupplier, setForegroundAlpha, setInsets, setInsets, setNoDataMessage, setNoDataMessageFont, setNoDataMessagePaint, setNotify, setOutlinePaint, setOutlineStroke, setOutlineVisible, setParent, zoom

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

For serialization.

See Also:

Constant Field Values

pieChart

private JFreeChart pieChart

The chart object that draws the individual pie charts.

dataset

private CategoryDataset dataset

The dataset.

dataExtractOrder

private TableOrder dataExtractOrder

The data extract order (by row or by column).

limit

private double limit

The pie section limit percentage.

aggregatedItemsKey

private java.lang.Comparable aggregatedItemsKey

The key for the aggregated items.

aggregatedItemsPaint

private transient java.awt.Paint aggregatedItemsPaint

The paint for the aggregated items.

sectionPaints

private transient java.util.Map sectionPaints

The colors to use for each section.

legendItemShape

private transient java.awt.Shape legendItemShape

The legend item shape (never null).

Constructor Detail

MultiplePiePlot

public MultiplePiePlot()

Creates a new plot with no data.

MultiplePiePlot

public MultiplePiePlot(CategoryDataset dataset)

Creates a new plot.

Parameters:

dataset - the dataset (null permitted).

Method Detail

getDataset

public CategoryDataset getDataset()

Returns the dataset used by the plot.

Returns:

The dataset (possibly null).

setDataset

public void setDataset(CategoryDataset dataset)

Sets the dataset used by the plot and sends a PlotChangeEvent to all registered listeners.

Parameters:

dataset - the dataset (null permitted).

getPieChart

public JFreeChart getPieChart()

Returns the pie chart that is used to draw the individual pie plots. Note that there are some attributes on this chart instance that will be ignored at rendering time (for example, legend item settings).

Returns:

The pie chart (never null).

See Also:

setPieChart(JFreeChart)

setPieChart

public void setPieChart(JFreeChart pieChart)

Sets the chart that is used to draw the individual pie plots. The chart's plot must be an instance of PiePlot.

Parameters:

pieChart - the pie chart (null not permitted).

See Also:

getPieChart()

getDataExtractOrder

public TableOrder getDataExtractOrder()

Returns the data extract order (by row or by column).

Returns:

The data extract order (never null).

setDataExtractOrder

public void setDataExtractOrder(TableOrder order)

Sets the data extract order (by row or by column) and sends a PlotChangeEvent to all registered listeners.

Parameters:

order - the order (null not permitted).

getLimit

public double getLimit()

Returns the limit (as a percentage) below which small pie sections are aggregated.

Returns:

The limit percentage.

setLimit

public void setLimit(double limit)

Sets the limit below which pie sections are aggregated. Set this to 0.0 if you don't want any aggregation to occur.

Parameters:

limit - the limit percent.

getAggregatedItemsKey

public java.lang.Comparable getAggregatedItemsKey()

Returns the key for aggregated items in the pie plots, if there are any. The default value is "Other".

Returns:

The aggregated items key.

setAggregatedItemsKey

public void setAggregatedItemsKey(java.lang.Comparable key)

Sets the key for aggregated items in the pie plots. You must ensure that this doesn't clash with any keys in the dataset.

Parameters:

key - the key (null not permitted).

getAggregatedItemsPaint

public java.awt.Paint getAggregatedItemsPaint()

Returns the paint used to draw the pie section representing the aggregated items. The default value is {code Color.LIGHT_GRAY}.

Returns:

The paint.

setAggregatedItemsPaint

public void setAggregatedItemsPaint(java.awt.Paint paint)

Sets the paint used to draw the pie section representing the aggregated items and sends a PlotChangeEvent to all registered listeners.

Parameters:

paint - the paint (null not permitted).

getPlotType

public java.lang.String getPlotType()

Returns a short string describing the type of plot.

Specified by:

getPlotType in class Plot

Returns:

The plot type.

getLegendItemShape

public java.awt.Shape getLegendItemShape()

Returns the shape used for legend items.

Returns:

The shape (never null).

See Also:

setLegendItemShape(Shape)

setLegendItemShape

public void setLegendItemShape(java.awt.Shape shape)

Sets the shape used for legend items and sends a PlotChangeEvent to all registered listeners.

Parameters:

shape - the shape (null not permitted).

See Also:

getLegendItemShape()

draw

public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Rectangle2D area,
                 java.awt.geom.Point2D anchor,
                 PlotState parentState,
                 PlotRenderingInfo info)

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

Specified by:

draw in class Plot

Parameters:

g2 - the graphics device.

area - the area within which the plot should be drawn.

anchor - the anchor point (null permitted).

parentState - the state from the parent plot, if there is one.

info - collects info about the drawing.

prefetchSectionPaints

private void prefetchSectionPaints()

For each key in the dataset, check the sectionPaints cache to see if a paint is associated with that key and, if not, fetch one from the drawing supplier. These colors are cached so that the legend and all the subplots use consistent colors.

getLegendItems

public LegendItemCollection getLegendItems()

Returns a collection of legend items for the pie chart.

Specified by:

getLegendItems in interface LegendItemSource

Overrides:

getLegendItems in class Plot

Returns:

The legend items.

equals

public boolean equals(java.lang.Object obj)

Tests this plot for equality with an arbitrary object. Note that the plot's dataset is not considered in the equality test.

Overrides:

equals in class Plot

Parameters:

obj - the object (null permitted).

Returns:

true if this plot is equal to obj, and false otherwise.

clone

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

Returns a clone of the plot.

Specified by:

clone in interface PublicCloneable

Overrides:

clone in class Plot

Returns:

A clone.

Throws:

java.lang.CloneNotSupportedException - if some component of the plot does not support cloning.

writeObject

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

Provides serialization support.

Parameters:

stream - the output stream.

Throws:

java.io.IOException - if there is an I/O error.

readObject

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

Provides serialization support.

Parameters:

stream - the input stream.

Throws:

java.io.IOException - if there is an I/O error.

java.lang.ClassNotFoundException - if there is a classpath problem.