/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* ---------------------------
* CategoryTableXYDataset.java
* ---------------------------
* (C) Copyright 2004-2011, by Andreas Schroeder and Contributors.
*
* Original Author: Andreas Schroeder;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* Changes
* -------
* 31-Mar-2004 : Version 1 (AS);
* 05-May-2004 : Now extends AbstractIntervalXYDataset (DG);
* 15-Jul-2004 : Switched interval access method names (DG);
* 18-Aug-2004 : Moved from org.jfree.data --> org.jfree.data.xy (DG);
* 17-Nov-2004 : Updates required by changes to DomainInfo interface (DG);
* 11-Jan-2005 : Removed deprecated code in preparation for 1.0.0 release (DG);
* 05-Oct-2005 : Made the interval delegate a dataset change listener (DG);
* 02-Feb-2007 : Removed author tags all over JFreeChart sources (DG);
* 22-Apr-2008 : Implemented PublicCloneable, and fixed clone() method (DG);
* 18-Oct-2011 : Fixed bug 3190615 - added clear() method (DG);
*
*/
package org.jfree.data.xy;
import org.jfree.data.DefaultKeyedValues2D;
import org.jfree.data.DomainInfo;
import org.jfree.data.Range;
import org.jfree.data.general.DatasetChangeEvent;
import org.jfree.data.general.DatasetUtilities;
import org.jfree.util.PublicCloneable;
/**
* An implementation variant of the {@link TableXYDataset} where every series
* shares the same x-values (required for generating stacked area charts).
* This implementation uses a {@link DefaultKeyedValues2D} Object as backend
* implementation and is hence more "category oriented" than the {@link
* DefaultTableXYDataset} implementation.
* <p>
* This implementation provides no means to remove data items yet.
* This is due to the lack of such facility in the DefaultKeyedValues2D class.
* <p>
* This class also implements the {@link IntervalXYDataset} interface, but this
* implementation is provisional.
*/
public class CategoryTableXYDataset extends AbstractIntervalXYDataset
implements TableXYDataset, IntervalXYDataset, DomainInfo,
PublicCloneable {
/**
* The backing data structure.
*/
private DefaultKeyedValues2D values;
/** A delegate for controlling the interval width. */
private IntervalXYDelegate intervalDelegate;
/**
* Creates a new empty CategoryTableXYDataset.
*/
public CategoryTableXYDataset() {
this.values = new DefaultKeyedValues2D(true);
this.intervalDelegate = new IntervalXYDelegate(this);
addChangeListener(this.intervalDelegate);
}
/**
* Adds a data item to this dataset and sends a {@link DatasetChangeEvent}
* to all registered listeners.
*
* @param x the x value.
* @param y the y value.
* @param seriesName the name of the series to add the data item.
*/
public void add(double x, double y, String seriesName) {
add(new Double(x), new Double(y), seriesName, true);
}
/**
* Adds a data item to this dataset and, if requested, sends a
* {@link DatasetChangeEvent} to all registered listeners.
*
* @param x the x value.
* @param y the y value.
* @param seriesName the name of the series to add the data item.
* @param notify notify listeners?
*/
public void add(Number x, Number y, String seriesName, boolean notify) {
this.values.addValue(y, (Comparable) x, seriesName);
if (notify) {
fireDatasetChanged();
}
}
/**
* Removes a value from the dataset.
*
* @param x the x-value.
* @param seriesName the series name.
*/
public void remove(double x, String seriesName) {
remove(new Double(x), seriesName, true);
}
/**
* Removes an item from the dataset.
*
* @param x the x-value.
* @param seriesName the series name.
* @param notify notify listeners?
*/
public void remove(Number x, String seriesName, boolean notify) {
this.values.removeValue((Comparable) x, seriesName);
if (notify) {
fireDatasetChanged();
}
}
/**
* Clears all data from the dataset and sends a {@link DatasetChangeEvent}
* to all registered listeners.
*
* @since 1.0.14
*/
public void clear() {
this.values.clear();
fireDatasetChanged();
}
/**
* Returns the number of series in the collection.
*
* @return The series count.
*/
public int getSeriesCount() {
return this.values.getColumnCount();
}
/**
* Returns the key for a series.
*
* @param series the series index (zero-based).
*
* @return The key for a series.
*/
public Comparable getSeriesKey(int series) {
return this.values.getColumnKey(series);
}
/**
* Returns the number of x values in the dataset.
*
* @return The item count.
*/
public int getItemCount() {
return this.values.getRowCount();
}
/**
* Returns the number of items in the specified series.
* Returns the same as {@link CategoryTableXYDataset#getItemCount()}.
*
* @param series the series index (zero-based).
*
* @return The item count.
*/
public int getItemCount(int series) {
return getItemCount(); // all series have the same number of items in
// this dataset
}
/**
* Returns the x-value for the specified series and item.
*
* @param series the series index (zero-based).
* @param item the item index (zero-based).
*
* @return The value.
*/
public Number getX(int series, int item) {
return (Number) this.values.getRowKey(item);
}
/**
* Returns the starting X value for the specified series and item.
*
* @param series the series index (zero-based).
* @param item the item index (zero-based).
*
* @return The starting X value.
*/
public Number getStartX(int series, int item) {
return this.intervalDelegate.getStartX(series, item);
}
/**
* Returns the ending X value for the specified series and item.
*
* @param series the series index (zero-based).
* @param item the item index (zero-based).
*
* @return The ending X value.
*/
public Number getEndX(int series, int item) {
return this.intervalDelegate.getEndX(series, item);
}
/**
* Returns the y-value for the specified series and item.
*
* @param series the series index (zero-based).
* @param item the item index (zero-based).
*
* @return The y value (possibly <code>null</code>).
*/
public Number getY(int series, int item) {
return this.values.getValue(item, series);
}
/**
* Returns the starting Y value for the specified series and item.
*
* @param series the series index (zero-based).
* @param item the item index (zero-based).
*
* @return The starting Y value.
*/
public Number getStartY(int series, int item) {
return getY(series, item);
}
/**
* Returns the ending Y value for the specified series and item.
*
* @param series the series index (zero-based).
* @param item the item index (zero-based).
*
* @return The ending Y value.
*/
public Number getEndY(int series, int item) {
return getY(series, item);
}
/**
* Returns the minimum x-value in the dataset.
*
* @param includeInterval a flag that determines whether or not the
* x-interval is taken into account.
*
* @return The minimum value.
*/
public double getDomainLowerBound(boolean includeInterval) {
return this.intervalDelegate.getDomainLowerBound(includeInterval);
}
/**
* Returns the maximum x-value in the dataset.
*
* @param includeInterval a flag that determines whether or not the
* x-interval is taken into account.
*
* @return The maximum value.
*/
public double getDomainUpperBound(boolean includeInterval) {
return this.intervalDelegate.getDomainUpperBound(includeInterval);
}
/**
* Returns the range of the values in this dataset's domain.
*
* @param includeInterval a flag that determines whether or not the
* x-interval is taken into account.
*
* @return The range.
*/
public Range getDomainBounds(boolean includeInterval) {
if (includeInterval) {
return this.intervalDelegate.getDomainBounds(includeInterval);
}
else {
return DatasetUtilities.iterateDomainBounds(this, includeInterval);
}
}
/**
* Returns the interval position factor.
*
* @return The interval position factor.
*/
public double getIntervalPositionFactor() {
return this.intervalDelegate.getIntervalPositionFactor();
}
/**
* Sets the interval position factor. Must be between 0.0 and 1.0 inclusive.
* If the factor is 0.5, the gap is in the middle of the x values. If it
* is lesser than 0.5, the gap is farther to the left and if greater than
* 0.5 it gets farther to the right.
*
* @param d the new interval position factor.
*/
public void setIntervalPositionFactor(double d) {
this.intervalDelegate.setIntervalPositionFactor(d);
fireDatasetChanged();
}
/**
* Returns the full interval width.
*
* @return The interval width to use.
*/
public double getIntervalWidth() {
return this.intervalDelegate.getIntervalWidth();
}
/**
* Sets the interval width to a fixed value, and sends a
* {@link DatasetChangeEvent} to all registered listeners.
*
* @param d the new interval width (must be > 0).
*/
public void setIntervalWidth(double d) {
this.intervalDelegate.setFixedIntervalWidth(d);
fireDatasetChanged();
}
/**
* Returns whether the interval width is automatically calculated or not.
*
* @return whether the width is automatically calculated or not.
*/
public boolean isAutoWidth() {
return this.intervalDelegate.isAutoWidth();
}
/**
* Sets the flag that indicates whether the interval width is automatically
* calculated or not.
*
* @param b the flag.
*/
public void setAutoWidth(boolean b) {
this.intervalDelegate.setAutoWidth(b);
fireDatasetChanged();
}
/**
* Tests this dataset for equality with an arbitrary object.
*
* @param obj the object (<code>null</code> permitted).
*
* @return A boolean.
*/
public boolean equals(Object obj) {
if (!(obj instanceof CategoryTableXYDataset)) {
return false;
}
CategoryTableXYDataset that = (CategoryTableXYDataset) obj;
if (!this.intervalDelegate.equals(that.intervalDelegate)) {
return false;
}
if (!this.values.equals(that.values)) {
return false;
}
return true;
}
/**
* Returns an independent copy of this dataset.
*
* @return A clone.
*
* @throws CloneNotSupportedException if there is some reason that cloning
* cannot be performed.
*/
public Object clone() throws CloneNotSupportedException {
CategoryTableXYDataset clone = (CategoryTableXYDataset) super.clone();
clone.values = (DefaultKeyedValues2D) this.values.clone();
clone.intervalDelegate = new IntervalXYDelegate(clone);
// need to configure the intervalDelegate to match the original
clone.intervalDelegate.setFixedIntervalWidth(getIntervalWidth());
clone.intervalDelegate.setAutoWidth(isAutoWidth());
clone.intervalDelegate.setIntervalPositionFactor(
getIntervalPositionFactor());
return clone;
}
}
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