home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

jfreechart example source code file (IntervalMarker.java)

This example jfreechart source code file (IntervalMarker.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

awt, cloneable, clonenotsupportedexception, gradientpainttransformer, gradientpainttransformer, intervalmarker, intervalmarker, io, marker, markerchangeevent, markerchangeevent, object, paint, paint, serializable, stroke

The jfreechart IntervalMarker.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, 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.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * -------------------
 * IntervalMarker.java
 * -------------------
 * (C) Copyright 2002-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 20-Aug-2002 : Added stroke to constructor in Marker class (DG);
 * 02-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 26-Mar-2003 : Implemented Serializable (DG);
 * ------------- JFREECHART 1.0.x ---------------------------------------------
 * 05-Sep-2006 : Added MarkerChangeEvent notification (DG);
 * 18-Dec-2007 : Added new constructor (DG);
 *
 */

package org.jfree.chart.plot;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Paint;
import java.awt.Stroke;
import java.io.Serializable;

import org.jfree.chart.event.MarkerChangeEvent;
import org.jfree.ui.GradientPaintTransformer;
import org.jfree.ui.LengthAdjustmentType;
import org.jfree.util.ObjectUtilities;

/**
 * Represents an interval to be highlighted in some way.
 */
public class IntervalMarker extends Marker implements Cloneable, Serializable {

    /** For serialization. */
    private static final long serialVersionUID = -1762344775267627916L;

    /** The start value. */
    private double startValue;

    /** The end value. */
    private double endValue;

    /** The gradient paint transformer (optional). */
    private GradientPaintTransformer gradientPaintTransformer;

    /**
     * Constructs an interval marker.
     *
     * @param start  the start of the interval.
     * @param end  the end of the interval.
     */
    public IntervalMarker(double start, double end) {
        this(start, end, Color.gray, new BasicStroke(0.5f), Color.gray,
                new BasicStroke(0.5f), 0.8f);
    }

    /**
     * Creates a new interval marker with the specified range and fill paint.
     * The outline paint and stroke default to <code>null.
     *
     * @param start  the lower bound of the interval.
     * @param end  the upper bound of the interval.
     * @param paint  the fill paint (<code>null not permitted).
     *
     * @since 1.0.9
     */
    public IntervalMarker(double start, double end, Paint paint) {
        this(start, end, paint, new BasicStroke(0.5f), null, null, 0.8f);
    }

    /**
     * Constructs an interval marker.
     *
     * @param start  the start of the interval.
     * @param end  the end of the interval.
     * @param paint  the paint (<code>null not permitted).
     * @param stroke  the stroke (<code>null not permitted).
     * @param outlinePaint  the outline paint.
     * @param outlineStroke  the outline stroke.
     * @param alpha  the alpha transparency.
     */
    public IntervalMarker(double start, double end,
                          Paint paint, Stroke stroke,
                          Paint outlinePaint, Stroke outlineStroke,
                          float alpha) {

        super(paint, stroke, outlinePaint, outlineStroke, alpha);
        this.startValue = start;
        this.endValue = end;
        this.gradientPaintTransformer = null;
        setLabelOffsetType(LengthAdjustmentType.CONTRACT);

    }

    /**
     * Returns the start value for the interval.
     *
     * @return The start value.
     */
    public double getStartValue() {
        return this.startValue;
    }

    /**
     * Sets the start value for the marker and sends a
     * {@link MarkerChangeEvent} to all registered listeners.
     *
     * @param value  the value.
     *
     * @since 1.0.3
     */
    public void setStartValue(double value) {
        this.startValue = value;
        notifyListeners(new MarkerChangeEvent(this));
    }

    /**
     * Returns the end value for the interval.
     *
     * @return The end value.
     */
    public double getEndValue() {
        return this.endValue;
    }

    /**
     * Sets the end value for the marker and sends a
     * {@link MarkerChangeEvent} to all registered listeners.
     *
     * @param value  the value.
     *
     * @since 1.0.3
     */
    public void setEndValue(double value) {
        this.endValue = value;
        notifyListeners(new MarkerChangeEvent(this));
    }

    /**
     * Returns the gradient paint transformer.
     *
     * @return The gradient paint transformer (possibly <code>null).
     */
    public GradientPaintTransformer getGradientPaintTransformer() {
        return this.gradientPaintTransformer;
    }

    /**
     * Sets the gradient paint transformer and sends a
     * {@link MarkerChangeEvent} to all registered listeners.
     *
     * @param transformer  the transformer (<code>null permitted).
     */
    public void setGradientPaintTransformer(
            GradientPaintTransformer transformer) {
        this.gradientPaintTransformer = transformer;
        notifyListeners(new MarkerChangeEvent(this));
    }

    /**
     * Tests the marker for equality with an arbitrary object.
     *
     * @param obj  the object (<code>null permitted).
     *
     * @return A boolean.
     */
    public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof IntervalMarker)) {
            return false;
        }
        if (!super.equals(obj)) {
            return false;
        }
        IntervalMarker that = (IntervalMarker) obj;
        if (this.startValue != that.startValue) {
            return false;
        }
        if (this.endValue != that.endValue) {
            return false;
        }
        if (!ObjectUtilities.equal(this.gradientPaintTransformer,
                that.gradientPaintTransformer)) {
            return false;
        }
        return true;
    }

    /**
     * Returns a clone of the marker.
     *
     * @return A clone.
     *
     * @throws CloneNotSupportedException Not thrown by this class, but the
     *         exception is declared for the use of subclasses.
     */
    public Object clone() throws CloneNotSupportedException {
        return super.clone();
    }

}

Other jfreechart examples (source code examples)

Here is a short list of links related to this jfreechart IntervalMarker.java source code file:



my book on functional programming

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.