Example usage for org.jfree.data.pie PieDatasetChangeInfo PieDatasetChangeInfo

Introduction

In this page you can find the example usage for org.jfree.data.pie PieDatasetChangeInfo PieDatasetChangeInfo.

Prototype

public PieDatasetChangeInfo(PieDatasetChangeType t, int index1, int index2) 

Source Link

Document

Creates a new instance.

Usage

From source file:org.jfree.data.pie.DefaultPieDataset.java

/**
 * Sets the data value for a key and sends a {@link DatasetChangeEvent} to
 * all registered listeners./*w w w.  j av  a  2 s  .  c  om*/
 *
 * @param key  the key (<code>null</code> not permitted).
 * @param value  the value.
 *
 * @throws IllegalArgumentException if <code>key</code> is
 *     <code>null</code>.
 */
public void setValue(Comparable key, Number value) {
    int index = this.data.getIndex(key);
    PieDatasetChangeType ct = PieDatasetChangeType.ADD;
    if (index >= 0) {
        ct = PieDatasetChangeType.UPDATE;
    }

    this.data.setObject(key, new SelectableValue(value));
    PieDatasetChangeInfo info = new PieDatasetChangeInfo(ct, index, index);
    fireDatasetChanged(info);
}

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From source file:org.jfree.data.pie.DefaultPieDataset.java

/**
 * Inserts a new value at the specified position in the dataset or, if
 * there is an existing item with the specified key, updates the value
 * for that item and moves it to the specified position.  After the change
 * is made, this method sends a {@link DatasetChangeEvent} to all
 * registered listeners./*from   w w  w.  j  a  v a  2  s .co m*/
 *
 * @param position  the position (in the range 0 to getItemCount()).
 * @param key  the key (<code>null</code> not permitted).
 * @param value  the value (<code>null</code> permitted).
 *
 * @since 1.0.6
 */
public void insertValue(int position, Comparable key, Number value) {
    this.data.insertValue(position, key, value);
    PieDatasetChangeType ct = PieDatasetChangeType.ADD;
    // TODO: unit tests for inserts where key already exists.
    fireDatasetChanged(new PieDatasetChangeInfo(ct, position, position));
}

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From source file:org.jfree.data.pie.DefaultPieDataset.java

/**
 * Removes an item from the dataset and sends a {@link DatasetChangeEvent}
 * to all registered listeners./*from  ww  w .  ja v a2  s.co m*/
 *
 * @param key  the key (<code>null</code> not permitted).
 *
 * @throws IllegalArgumentException if <code>key</code> is
 *     <code>null</code>.
 */
public void remove(Comparable key) {
    int i = getIndex(key);
    this.data.removeValue(key);
    PieDatasetChangeType ct = PieDatasetChangeType.REMOVE;
    fireDatasetChanged(new PieDatasetChangeInfo(ct, i, i));
}

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From source file:org.jfree.data.pie.DefaultPieDataset.java

/**
 * Clears all data from this dataset and sends a {@link DatasetChangeEvent}
 * to all registered listeners (unless the dataset was already empty).
 *
 * @since 1.0.2//ww w  .  j  ava  2 s  .  c o m
 */
public void clear() {
    if (getItemCount() > 0) {
        this.data.clear();
        PieDatasetChangeType ct = PieDatasetChangeType.CLEAR;
        fireDatasetChanged(new PieDatasetChangeInfo(ct, -1, -1));
    }
}

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From source file:org.jfree.data.pie.DefaultPieDataset.java

/**
 * Sorts the dataset's items by key and sends a {@link DatasetChangeEvent}
 * to all registered listeners./*from   w  ww .  j  ava2  s. com*/
 *
 * @param order  the sort order (<code>null</code> not permitted).
 *
 * @since 1.0.3
 */
public void sortByKeys(SortOrder order) {
    this.data.sortByKeys(order);
    PieDatasetChangeType ct = PieDatasetChangeType.UPDATE;
    fireDatasetChanged(new PieDatasetChangeInfo(ct, 0, getItemCount() - 1));
}

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From source file:org.jfree.data.pie.DefaultPieDataset.java

/**
 * Sorts the dataset's items by value and sends a {@link DatasetChangeEvent}
 * to all registered listeners.//from w w w.  jav  a  2  s  .c om
 *
 * @param order  the sort order (<code>null</code> not permitted).
 *
 * @since 1.0.3
 */
public void sortByValues(SortOrder order) {
    this.data.sortByObjects(order);
    PieDatasetChangeType ct = PieDatasetChangeType.UPDATE;
    fireDatasetChanged(new PieDatasetChangeInfo(ct, 0, getItemCount() - 1));
}

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