Module platform
Package org.jfree.chart.plot

Class AbstractPieLabelDistributor

java.lang.Object
org.jfree.chart.plot.AbstractPieLabelDistributor
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
PieLabelDistributor
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 PiePlot.setLabelDistributor(AbstractPieLabelDistributor) method if you want to customise the label distribution.
See Also:

  • Field Details

    • labels

      protected List labels
      The label records.

  • Constructor Details

    • AbstractPieLabelDistributor

      public AbstractPieLabelDistributor()
      Creates a new instance.

  • Method Details

    • getPieLabelRecord

      public PieLabelRecord getPieLabelRecord(int index)
      Returns a label record from the list.
      Parameters:
      index - the index.
      Returns:
      The label record.

    • addPieLabelRecord

      public void addPieLabelRecord(PieLabelRecord record)
      Adds a label record.
      Parameters:
      record - the label record (null not permitted).

    • getItemCount

      public int getItemCount()
      Returns the number of items in the list.
      Returns:
      The item count.

    • 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.