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jfreechart example source code file (StandardDialScale.java)

This example jfreechart source code file (StandardDialScale.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, diallayerchangeevent, diallayerchangeevent, font, geometry, illegalargumentexception, illegalargumentexception, io, null, null, paint, point2d, rectangle2d, standarddialscale, standarddialscale, stroke, text, the

The jfreechart StandardDialScale.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2009, 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.]
 *
 * ----------------------
 * StandardDialScale.java
 * ----------------------
 * (C) Copyright 2006-2009, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 03-Nov-2006 : Version 1 (DG);
 * 17-Nov-2006 : Added flags for tick label visibility (DG);
 * 24-Oct-2007 : Added tick label formatter (DG);
 * 19-Nov-2007 : Added some missing accessor methods (DG);
 * 27-Feb-2009 : Fixed bug 2617557: tickLabelPaint ignored (DG);
 *
 */

package org.jfree.chart.plot.dial;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.Stroke;
import java.awt.geom.Arc2D;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.text.DecimalFormat;
import java.text.NumberFormat;

import org.jfree.io.SerialUtilities;
import org.jfree.text.TextUtilities;
import org.jfree.ui.TextAnchor;
import org.jfree.util.PaintUtilities;
import org.jfree.util.PublicCloneable;

/**
 * A scale for a {@link DialPlot}.
 *
 * @since 1.0.7
 */
public class StandardDialScale extends AbstractDialLayer implements DialScale,
        Cloneable, PublicCloneable, Serializable {

    /** For serialization. */
    static final long serialVersionUID = 3715644629665918516L;

    /** The minimum data value for the scale. */
    private double lowerBound;

    /** The maximum data value for the scale. */
    private double upperBound;

    /**
     * The start angle for the scale display, in degrees (using the same
     * encoding as Arc2D).
     */
    private double startAngle;

    /** The extent of the scale display. */
    private double extent;

    /**
     * The factor (in the range 0.0 to 1.0) that determines the outside limit
     * of the tick marks.
     */
    private double tickRadius;

    /**
     * The increment (in data units) between major tick marks.
     */
    private double majorTickIncrement;

    /**
     * The factor that is subtracted from the tickRadius to determine the
     * inner point of the major ticks.
     */
    private double majorTickLength;

    /**
     * The paint to use for major tick marks.  This field is transient because
     * it requires special handling for serialization.
     */
    private transient Paint majorTickPaint;

    /**
     * The stroke to use for major tick marks.  This field is transient because
     * it requires special handling for serialization.
     */
    private transient Stroke majorTickStroke;

    /**
     * The number of minor ticks between each major tick.
     */
    private int minorTickCount;

    /**
     * The factor that is subtracted from the tickRadius to determine the
     * inner point of the minor ticks.
     */
    private double minorTickLength;

    /**
     * The paint to use for minor tick marks.  This field is transient because
     * it requires special handling for serialization.
     */
    private transient Paint minorTickPaint;

    /**
     * The stroke to use for minor tick marks.  This field is transient because
     * it requires special handling for serialization.
     */
    private transient Stroke minorTickStroke;

    /**
     * The tick label offset.
     */
    private double tickLabelOffset;

    /**
     * The tick label font.
     */
    private Font tickLabelFont;

    /**
     * A flag that controls whether or not the tick labels are
     * displayed.
     */
    private boolean tickLabelsVisible;

    /**
     * The number formatter for the tick labels.
     */
    private NumberFormat tickLabelFormatter;

    /**
     * A flag that controls whether or not the first tick label is
     * displayed.
     */
    private boolean firstTickLabelVisible;

    /**
     * The tick label paint.  This field is transient because it requires
     * special handling for serialization.
     */
    private transient Paint tickLabelPaint;

    /**
     * Creates a new instance of DialScale.
     */
    public StandardDialScale() {
        this(0.0, 100.0, 175, -170, 10.0, 4);
    }

    /**
     * Creates a new instance.
     *
     * @param lowerBound  the lower bound of the scale.
     * @param upperBound  the upper bound of the scale.
     * @param startAngle  the start angle (in degrees, using the same
     *     orientation as Java's <code>Arc2D class).
     * @param extent  the extent (in degrees, counter-clockwise).
     * @param majorTickIncrement  the interval between major tick marks
     * @param minorTickCount  the number of minor ticks between major tick
     *          marks.
     */
    public StandardDialScale(double lowerBound, double upperBound,
            double startAngle, double extent, double majorTickIncrement,
            int minorTickCount) {
        this.startAngle = startAngle;
        this.extent = extent;
        this.lowerBound = lowerBound;
        this.upperBound = upperBound;
        this.tickRadius = 0.70;
        this.tickLabelsVisible = true;
        this.tickLabelFormatter = new DecimalFormat("0.0");
        this.firstTickLabelVisible = true;
        this.tickLabelFont = new Font("Dialog", Font.BOLD, 16);
        this.tickLabelPaint = Color.blue;
        this.tickLabelOffset = 0.10;
        this.majorTickIncrement = majorTickIncrement;
        this.majorTickLength = 0.04;
        this.majorTickPaint = Color.black;
        this.majorTickStroke = new BasicStroke(3.0f);
        this.minorTickCount = minorTickCount;
        this.minorTickLength = 0.02;
        this.minorTickPaint = Color.black;
        this.minorTickStroke = new BasicStroke(1.0f);
    }

    /**
     * Returns the lower bound for the scale.
     *
     * @return The lower bound for the scale.
     *
     * @see #setLowerBound(double)
     *
     * @since 1.0.8
     */
    public double getLowerBound() {
        return this.lowerBound;
    }

    /**
     * Sets the lower bound for the scale and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param lower  the lower bound.
     *
     * @see #getLowerBound()
     *
     * @since 1.0.8
     */
    public void setLowerBound(double lower) {
        this.lowerBound = lower;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the upper bound for the scale.
     *
     * @return The upper bound for the scale.
     *
     * @see #setUpperBound(double)
     *
     * @since 1.0.8
     */
    public double getUpperBound() {
        return this.upperBound;
    }

    /**
     * Sets the upper bound for the scale and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param upper  the upper bound.
     *
     * @see #getUpperBound()
     *
     * @since 1.0.8
     */
    public void setUpperBound(double upper) {
        this.upperBound = upper;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the start angle for the scale (in degrees using the same
     * orientation as Java's <code>Arc2D class).
     *
     * @return The start angle.
     *
     * @see #setStartAngle(double)
     */
    public double getStartAngle() {
        return this.startAngle;
    }

    /**
     * Sets the start angle for the scale and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param angle  the angle (in degrees).
     *
     * @see #getStartAngle()
     */
    public void setStartAngle(double angle) {
        this.startAngle = angle;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the extent.
     *
     * @return The extent.
     *
     * @see #setExtent(double)
     */
    public double getExtent() {
        return this.extent;
    }

    /**
     * Sets the extent and sends a {@link DialLayerChangeEvent} to all
     * registered listeners.
     *
     * @param extent  the extent.
     *
     * @see #getExtent()
     */
    public void setExtent(double extent) {
        this.extent = extent;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the radius (as a percentage of the maximum space available) of
     * the outer limit of the tick marks.
     *
     * @return The tick radius.
     *
     * @see #setTickRadius(double)
     */
    public double getTickRadius() {
        return this.tickRadius;
    }

    /**
     * Sets the tick radius and sends a {@link DialLayerChangeEvent} to all
     * registered listeners.
     *
     * @param radius  the radius.
     *
     * @see #getTickRadius()
     */
    public void setTickRadius(double radius) {
        if (radius <= 0.0) {
            throw new IllegalArgumentException(
                    "The 'radius' must be positive.");
        }
        this.tickRadius = radius;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the increment (in data units) between major tick labels.
     *
     * @return The increment between major tick labels.
     *
     * @see #setMajorTickIncrement(double)
     */
    public double getMajorTickIncrement() {
        return this.majorTickIncrement;
    }

    /**
     * Sets the increment (in data units) between major tick labels and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param increment  the increment.
     *
     * @see #getMajorTickIncrement()
     */
    public void setMajorTickIncrement(double increment) {
        if (increment <= 0.0) {
            throw new IllegalArgumentException(
                    "The 'increment' must be positive.");
        }
        this.majorTickIncrement = increment;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the length factor for the major tick marks.  The value is
     * subtracted from the tick radius to determine the inner starting point
     * for the tick marks.
     *
     * @return The length factor.
     *
     * @see #setMajorTickLength(double)
     */
    public double getMajorTickLength() {
        return this.majorTickLength;
    }

    /**
     * Sets the length factor for the major tick marks and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param length  the length.
     *
     * @see #getMajorTickLength()
     */
    public void setMajorTickLength(double length) {
        if (length < 0.0) {
            throw new IllegalArgumentException("Negative 'length' argument.");
        }
        this.majorTickLength = length;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the major tick paint.
     *
     * @return The major tick paint (never <code>null).
     *
     * @see #setMajorTickPaint(Paint)
     */
    public Paint getMajorTickPaint() {
        return this.majorTickPaint;
    }

    /**
     * Sets the major tick paint and sends a {@link DialLayerChangeEvent} to
     * all registered listeners.
     *
     * @param paint  the paint (<code>null not permitted).
     *
     * @see #getMajorTickPaint()
     */
    public void setMajorTickPaint(Paint paint) {
        if (paint == null) {
            throw new IllegalArgumentException("Null 'paint' argument.");
        }
        this.majorTickPaint = paint;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the stroke used to draw the major tick marks.
     *
     * @return The stroke (never <code>null).
     *
     * @see #setMajorTickStroke(Stroke)
     */
    public Stroke getMajorTickStroke() {
        return this.majorTickStroke;
    }

    /**
     * Sets the stroke used to draw the major tick marks and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param stroke  the stroke (<code>null not permitted).
     *
     * @see #getMajorTickStroke()
     */
    public void setMajorTickStroke(Stroke stroke) {
        if (stroke == null) {
            throw new IllegalArgumentException("Null 'stroke' argument.");
        }
        this.majorTickStroke = stroke;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the number of minor tick marks between major tick marks.
     *
     * @return The number of minor tick marks between major tick marks.
     *
     * @see #setMinorTickCount(int)
     */
    public int getMinorTickCount() {
        return this.minorTickCount;
    }

    /**
     * Sets the number of minor tick marks between major tick marks and sends
     * a {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param count  the count.
     *
     * @see #getMinorTickCount()
     */
    public void setMinorTickCount(int count) {
        if (count < 0) {
            throw new IllegalArgumentException(
                    "The 'count' cannot be negative.");
        }
        this.minorTickCount = count;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the length factor for the minor tick marks.  The value is
     * subtracted from the tick radius to determine the inner starting point
     * for the tick marks.
     *
     * @return The length factor.
     *
     * @see #setMinorTickLength(double)
     */
    public double getMinorTickLength() {
        return this.minorTickLength;
    }

    /**
     * Sets the length factor for the minor tick marks and sends
     * a {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param length  the length.
     *
     * @see #getMinorTickLength()
     */
    public void setMinorTickLength(double length) {
        if (length < 0.0) {
            throw new IllegalArgumentException("Negative 'length' argument.");
        }
        this.minorTickLength = length;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the paint used to draw the minor tick marks.
     *
     * @return The paint (never <code>null).
     *
     * @see #setMinorTickPaint(Paint)
     */
    public Paint getMinorTickPaint() {
        return this.minorTickPaint;
    }

    /**
     * Sets the paint used to draw the minor tick marks and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param paint  the paint (<code>null not permitted).
     *
     * @see #getMinorTickPaint()
     */
    public void setMinorTickPaint(Paint paint) {
        if (paint == null) {
            throw new IllegalArgumentException("Null 'paint' argument.");
        }
        this.minorTickPaint = paint;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the stroke used to draw the minor tick marks.
     *
     * @return The paint (never <code>null).
     *
     * @see #setMinorTickStroke(Stroke)
     *
     * @since 1.0.8
     */
    public Stroke getMinorTickStroke() {
        return this.minorTickStroke;
    }

    /**
     * Sets the stroke used to draw the minor tick marks and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param stroke  the stroke (<code>null not permitted).
     *
     * @see #getMinorTickStroke()
     *
     * @since 1.0.8
     */
    public void setMinorTickStroke(Stroke stroke) {
        if (stroke == null) {
            throw new IllegalArgumentException("Null 'stroke' argument.");
        }
        this.minorTickStroke = stroke;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the tick label offset.
     *
     * @return The tick label offset.
     *
     * @see #setTickLabelOffset(double)
     */
    public double getTickLabelOffset() {
        return this.tickLabelOffset;
    }

    /**
     * Sets the tick label offset and sends a {@link DialLayerChangeEvent} to
     * all registered listeners.
     *
     * @param offset  the offset.
     *
     * @see #getTickLabelOffset()
     */
    public void setTickLabelOffset(double offset) {
        this.tickLabelOffset = offset;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the font used to draw the tick labels.
     *
     * @return The font (never <code>null).
     *
     * @see #setTickLabelFont(Font)
     */
    public Font getTickLabelFont() {
        return this.tickLabelFont;
    }

    /**
     * Sets the font used to display the tick labels and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param font  the font (<code>null not permitted).
     *
     * @see #getTickLabelFont()
     */
    public void setTickLabelFont(Font font) {
        if (font == null) {
            throw new IllegalArgumentException("Null 'font' argument.");
        }
        this.tickLabelFont = font;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the paint used to draw the tick labels.
     *
     * @return The paint (<code>null not permitted).
     *
     * @see #setTickLabelPaint(Paint)
     */
    public Paint getTickLabelPaint() {
        return this.tickLabelPaint;
    }

    /**
     * Sets the paint used to draw the tick labels and sends a
     * {@link DialLayerChangeEvent} to all registered listeners.
     *
     * @param paint  the paint (<code>null not permitted).
     */
    public void setTickLabelPaint(Paint paint) {
        if (paint == null) {
            throw new IllegalArgumentException("Null 'paint' argument.");
        }
        this.tickLabelPaint = paint;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns <code>true if the tick labels should be displayed,
     * and <code>false otherwise.
     *
     * @return A boolean.
     *
     * @see #setTickLabelsVisible(boolean)
     */
    public boolean getTickLabelsVisible() {
        return this.tickLabelsVisible;
    }

    /**
     * Sets the flag that controls whether or not the tick labels are
     * displayed, and sends a {@link DialLayerChangeEvent} to all registered
     * listeners.
     *
     * @param visible  the new flag value.
     *
     * @see #getTickLabelsVisible()
     */
    public void setTickLabelsVisible(boolean visible) {
        this.tickLabelsVisible = visible;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns the number formatter used to convert the tick label values to
     * strings.
     *
     * @return The formatter (never <code>null).
     *
     * @see #setTickLabelFormatter(NumberFormat)
     */
    public NumberFormat getTickLabelFormatter() {
        return this.tickLabelFormatter;
    }

    /**
     * Sets the number formatter used to convert the tick label values to
     * strings, and sends a {@link DialLayerChangeEvent} to all registered
     * listeners.
     *
     * @param formatter  the formatter (<code>null not permitted).
     *
     * @see #getTickLabelFormatter()
     */
    public void setTickLabelFormatter(NumberFormat formatter) {
        if (formatter == null) {
            throw new IllegalArgumentException("Null 'formatter' argument.");
        }
        this.tickLabelFormatter = formatter;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns a flag that controls whether or not the first tick label is
     * visible.
     *
     * @return A boolean.
     *
     * @see #setFirstTickLabelVisible(boolean)
     */
    public boolean getFirstTickLabelVisible() {
        return this.firstTickLabelVisible;
    }

    /**
     * Sets a flag that controls whether or not the first tick label is
     * visible, and sends a {@link DialLayerChangeEvent} to all registered
     * listeners.
     *
     * @param visible  the new flag value.
     *
     * @see #getFirstTickLabelVisible()
     */
    public void setFirstTickLabelVisible(boolean visible) {
        this.firstTickLabelVisible = visible;
        notifyListeners(new DialLayerChangeEvent(this));
    }

    /**
     * Returns <code>true to indicate that this layer should be
     * clipped within the dial window.
     *
     * @return <code>true.
     */
    public boolean isClippedToWindow() {
        return true;
    }

    /**
     * Draws the scale on the dial plot.
     *
     * @param g2  the graphics target (<code>null not permitted).
     * @param plot  the dial plot (<code>null not permitted).
     * @param frame  the reference frame that is used to construct the
     *     geometry of the plot (<code>null not permitted).
     * @param view  the visible part of the plot (<code>null not
     *     permitted).
     */
    public void draw(Graphics2D g2, DialPlot plot, Rectangle2D frame,
            Rectangle2D view) {

        Rectangle2D arcRect = DialPlot.rectangleByRadius(frame,
                this.tickRadius, this.tickRadius);
        Rectangle2D arcRectMajor = DialPlot.rectangleByRadius(frame,
                this.tickRadius - this.majorTickLength,
                this.tickRadius - this.majorTickLength);
        Rectangle2D arcRectMinor = arcRect;
        if (this.minorTickCount > 0 && this.minorTickLength > 0.0) {
            arcRectMinor = DialPlot.rectangleByRadius(frame,
                    this.tickRadius - this.minorTickLength,
                    this.tickRadius - this.minorTickLength);
        }
        Rectangle2D arcRectForLabels = DialPlot.rectangleByRadius(frame,
                this.tickRadius - this.tickLabelOffset,
                this.tickRadius - this.tickLabelOffset);

        boolean firstLabel = true;

        Arc2D arc = new Arc2D.Double();
        Line2D workingLine = new Line2D.Double();
        for (double v = this.lowerBound; v <= this.upperBound;
                v += this.majorTickIncrement) {
            arc.setArc(arcRect, this.startAngle, valueToAngle(v)
                    - this.startAngle, Arc2D.OPEN);
            Point2D pt0 = arc.getEndPoint();
            arc.setArc(arcRectMajor, this.startAngle, valueToAngle(v)
                    - this.startAngle, Arc2D.OPEN);
            Point2D pt1 = arc.getEndPoint();
            g2.setPaint(this.majorTickPaint);
            g2.setStroke(this.majorTickStroke);
            workingLine.setLine(pt0, pt1);
            g2.draw(workingLine);
            arc.setArc(arcRectForLabels, this.startAngle, valueToAngle(v)
                    - this.startAngle, Arc2D.OPEN);
            Point2D pt2 = arc.getEndPoint();

            if (this.tickLabelsVisible) {
                if (!firstLabel || this.firstTickLabelVisible) {
                    g2.setFont(this.tickLabelFont);
                    g2.setPaint(this.tickLabelPaint);
                    TextUtilities.drawAlignedString(
                            this.tickLabelFormatter.format(v), g2,
                            (float) pt2.getX(), (float) pt2.getY(),
                            TextAnchor.CENTER);
                }
            }
            firstLabel = false;

            // now do the minor tick marks
            if (this.minorTickCount > 0 && this.minorTickLength > 0.0) {
                double minorTickIncrement = this.majorTickIncrement
                        / (this.minorTickCount + 1);
                for (int i = 0; i < this.minorTickCount; i++) {
                    double vv = v + ((i + 1) * minorTickIncrement);
                    if (vv >= this.upperBound) {
                        break;
                    }
                    double angle = valueToAngle(vv);

                    arc.setArc(arcRect, this.startAngle, angle
                            - this.startAngle, Arc2D.OPEN);
                    pt0 = arc.getEndPoint();
                    arc.setArc(arcRectMinor, this.startAngle, angle
                            - this.startAngle, Arc2D.OPEN);
                    Point2D pt3 = arc.getEndPoint();
                    g2.setStroke(this.minorTickStroke);
                    g2.setPaint(this.minorTickPaint);
                    workingLine.setLine(pt0, pt3);
                    g2.draw(workingLine);
                }
            }

        }
    }

    /**
     * Converts a data value to an angle against this scale.
     *
     * @param value  the data value.
     *
     * @return The angle (in degrees, using the same specification as Java's
     *     Arc2D class).
     *
     * @see #angleToValue(double)
     */
    public double valueToAngle(double value) {
        double range = this.upperBound - this.lowerBound;
        double unit = this.extent / range;
        return this.startAngle + unit * (value - this.lowerBound);
    }

    /**
     * Converts the given angle to a data value, based on this scale.
     *
     * @param angle  the angle.
     *
     * @return The data value.
     *
     * @see #valueToAngle(double)
     */
    public double angleToValue(double angle) {
        return Double.NaN;  // FIXME
    }

    /**
     * Tests this <code>StandardDialScale 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 StandardDialScale)) {
            return false;
        }
        StandardDialScale that = (StandardDialScale) obj;
        if (this.lowerBound != that.lowerBound) {
            return false;
        }
        if (this.upperBound != that.upperBound) {
            return false;
        }
        if (this.startAngle != that.startAngle) {
            return false;
        }
        if (this.extent != that.extent) {
            return false;
        }
        if (this.tickRadius != that.tickRadius) {
            return false;
        }
        if (this.majorTickIncrement != that.majorTickIncrement) {
            return false;
        }
        if (this.majorTickLength != that.majorTickLength) {
            return false;
        }
        if (!PaintUtilities.equal(this.majorTickPaint, that.majorTickPaint)) {
            return false;
        }
        if (!this.majorTickStroke.equals(that.majorTickStroke)) {
            return false;
        }
        if (this.minorTickCount != that.minorTickCount) {
            return false;
        }
        if (this.minorTickLength != that.minorTickLength) {
            return false;
        }
        if (!PaintUtilities.equal(this.minorTickPaint, that.minorTickPaint)) {
            return false;
        }
        if (!this.minorTickStroke.equals(that.minorTickStroke)) {
            return false;
        }
        if (this.tickLabelsVisible != that.tickLabelsVisible) {
            return false;
        }
        if (this.tickLabelOffset != that.tickLabelOffset) {
            return false;
        }
        if (!this.tickLabelFont.equals(that.tickLabelFont)) {
            return false;
        }
        if (!PaintUtilities.equal(this.tickLabelPaint, that.tickLabelPaint)) {
            return false;
        }
        return super.equals(obj);
    }

    /**
     * Returns a hash code for this instance.
     *
     * @return A hash code.
     */
    public int hashCode() {
        int result = 193;
        // lowerBound
        long temp = Double.doubleToLongBits(this.lowerBound);
        result = 37 * result + (int) (temp ^ (temp >>> 32));
        // upperBound
        temp = Double.doubleToLongBits(this.upperBound);
        result = 37 * result + (int) (temp ^ (temp >>> 32));
        // startAngle
        temp = Double.doubleToLongBits(this.startAngle);
        result = 37 * result + (int) (temp ^ (temp >>> 32));
        // extent
        temp = Double.doubleToLongBits(this.extent);
        result = 37 * result + (int) (temp ^ (temp >>> 32));
        // tickRadius
        temp = Double.doubleToLongBits(this.tickRadius);
        result = 37 * result + (int) (temp ^ (temp >>> 32));
        // majorTickIncrement
        // majorTickLength
        // majorTickPaint
        // majorTickStroke
        // minorTickCount
        // minorTickLength
        // minorTickPaint
        // minorTickStroke
        // tickLabelOffset
        // tickLabelFont
        // tickLabelsVisible
        // tickLabelFormatter
        // firstTickLabelsVisible
        return result;
    }

    /**
     * Returns a clone of this instance.
     *
     * @return A clone.
     *
     * @throws CloneNotSupportedException if this instance is not cloneable.
     */
    public Object clone() throws CloneNotSupportedException {
        return super.clone();
    }

    /**
     * Provides serialization support.
     *
     * @param stream  the output stream.
     *
     * @throws IOException  if there is an I/O error.
     */
    private void writeObject(ObjectOutputStream stream) throws IOException {
        stream.defaultWriteObject();
        SerialUtilities.writePaint(this.majorTickPaint, stream);
        SerialUtilities.writeStroke(this.majorTickStroke, stream);
        SerialUtilities.writePaint(this.minorTickPaint, stream);
        SerialUtilities.writeStroke(this.minorTickStroke, stream);
        SerialUtilities.writePaint(this.tickLabelPaint, stream);
    }

    /**
     * Provides serialization support.
     *
     * @param stream  the input stream.
     *
     * @throws IOException  if there is an I/O error.
     * @throws ClassNotFoundException  if there is a classpath problem.
     */
    private void readObject(ObjectInputStream stream)
            throws IOException, ClassNotFoundException {
        stream.defaultReadObject();
        this.majorTickPaint = SerialUtilities.readPaint(stream);
        this.majorTickStroke = SerialUtilities.readStroke(stream);
        this.minorTickPaint = SerialUtilities.readPaint(stream);
        this.minorTickStroke = SerialUtilities.readStroke(stream);
        this.tickLabelPaint = SerialUtilities.readPaint(stream);
    }

}

Other jfreechart examples (source code examples)

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



my book on functional programming

 

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