org.jfree.chart.plot

Class AbstractPieLabelDistributor

public abstract class AbstractPieLabelDistributor extends Object implements Serializable

A base class for handling the distribution of pie section labels. Create your own subclass and set it using the setLabelDistributor method if you want to customise the label distribution.

Field Summary
protected List	labels The label records.

Constructor Summary
	AbstractPieLabelDistributor() Creates a new instance.

Method Summary
void	addPieLabelRecord(PieLabelRecord record) Adds a label record.
void	clear() Clears the list of labels.
abstract void	distributeLabels(double minY, double height) Called by the PiePlot class.
int	getItemCount() Returns the number of items in the list.
PieLabelRecord	getPieLabelRecord(int index) Returns a label record from the list.

Field Detail

labels

protected List labels

The label records.

Constructor Detail

AbstractPieLabelDistributor

public AbstractPieLabelDistributor()

Creates a new instance.

Method Detail

addPieLabelRecord

public void addPieLabelRecord(PieLabelRecord record)

Adds a label record.

Parameters: record the label record (null not permitted).

clear

public void clear()

Clears the list of labels.

distributeLabels

public abstract void distributeLabels(double minY, double height)

Called by the PiePlot class. Implementations should distribute the labels in this.labels then return.

Parameters: minY the y-coordinate for the top of the label area. height the height of the label area.

getItemCount

public int getItemCount()

Returns the number of items in the list.

Returns: The item count.

getPieLabelRecord

public PieLabelRecord getPieLabelRecord(int index)

Returns a label record from the list.

Parameters: index the index.

Returns: The label record.

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