/**
     * Returns a collection of tick units for integer values.
     *
     * @return a collection of tick units for integer values.
     *
     * @deprecated this method has been moved to the NumberAxis class.
     */
    public static TickUnits createIntegerTickUnits() {

        TickUnits units = new TickUnits();

        units.add(new NumberTickUnit(1,              new DecimalFormat("0")));
        units.add(new NumberTickUnit(2,              new DecimalFormat("0")));
        units.add(new NumberTickUnit(5,              new DecimalFormat("0")));
        units.add(new NumberTickUnit(10,             new DecimalFormat("0")));
        units.add(new NumberTickUnit(20,             new DecimalFormat("0")));
        units.add(new NumberTickUnit(50,             new DecimalFormat("0")));
        units.add(new NumberTickUnit(100,            new DecimalFormat("0")));
        units.add(new NumberTickUnit(200,            new DecimalFormat("0")));
        units.add(new NumberTickUnit(500,            new DecimalFormat("0")));
        units.add(new NumberTickUnit(1000,           new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(2000,           new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(5000,           new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(10000,          new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(20000,          new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(50000,          new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(100000,         new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(200000,         new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(500000,         new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(1000000,        new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(2000000,        new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(5000000,        new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(10000000,       new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(20000000,       new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(50000000,       new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(100000000,      new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(200000000,      new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(500000000,      new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(1000000000,     new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(2000000000,     new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(5000000000.0,   new DecimalFormat("#,##0")));
        units.add(new NumberTickUnit(10000000000.0,  new DecimalFormat("#,##0")));

        return units;

    }

    /**
     * Creates the standard tick units, and uses a given Locale to create the DecimalFormats
     * <P>
     * If you don't like these defaults, create your own instance of TickUnits
     * and then pass it to the setStandardTickUnits(...) method in the
     * NumberAxis class.
     *
     * @param locale the locale to use to represent Numbers.
     *
     * @return the standard tick units.
     *
     * @deprecated this method has been moved to the NumberAxis class.
     */
    public static TickUnits createStandardTickUnits(Locale locale) {

        TickUnits units = new TickUnits();

        NumberFormat numberFormat = NumberFormat.getNumberInstance(locale);

        // we can add the units in any order, the TickUnits collection will sort them...
        units.add(new NumberTickUnit(0.0000001,    numberFormat));
        units.add(new NumberTickUnit(0.000001,     numberFormat));
        units.add(new NumberTickUnit(0.00001,      numberFormat));
        units.add(new NumberTickUnit(0.0001,       numberFormat));
        units.add(new NumberTickUnit(0.001,        numberFormat));
        units.add(new NumberTickUnit(0.01,         numberFormat));
        units.add(new NumberTickUnit(0.1,          numberFormat));
        units.add(new NumberTickUnit(1,            numberFormat));
        units.add(new NumberTickUnit(10,           numberFormat));
        units.add(new NumberTickUnit(100,          numberFormat));
        units.add(new NumberTickUnit(1000,         numberFormat));
        units.add(new NumberTickUnit(10000,        numberFormat));
        units.add(new NumberTickUnit(100000,       numberFormat));
        units.add(new NumberTickUnit(1000000,      numberFormat));
        units.add(new NumberTickUnit(10000000,     numberFormat));
        units.add(new NumberTickUnit(100000000,    numberFormat));
        units.add(new NumberTickUnit(1000000000,   numberFormat));

        units.add(new NumberTickUnit(0.00000025,   numberFormat));
        units.add(new NumberTickUnit(0.0000025,    numberFormat));
        units.add(new NumberTickUnit(0.000025,     numberFormat));
        units.add(new NumberTickUnit(0.00025,      numberFormat));
        units.add(new NumberTickUnit(0.0025,       numberFormat));
        units.add(new NumberTickUnit(0.025,        numberFormat));
        units.add(new NumberTickUnit(0.25,         numberFormat));
        units.add(new NumberTickUnit(2.5,          numberFormat));
        units.add(new NumberTickUnit(25,           numberFormat));
        units.add(new NumberTickUnit(250,          numberFormat));
        units.add(new NumberTickUnit(2500,         numberFormat));
        units.add(new NumberTickUnit(25000,        numberFormat));
        units.add(new NumberTickUnit(250000,       numberFormat));
        units.add(new NumberTickUnit(2500000,      numberFormat));
        units.add(new NumberTickUnit(25000000,     numberFormat));
        units.add(new NumberTickUnit(250000000,    numberFormat));
        units.add(new NumberTickUnit(2500000000.0,   numberFormat));

        units.add(new NumberTickUnit(0.0000005,    numberFormat));
        units.add(new NumberTickUnit(0.000005,     numberFormat));
        units.add(new NumberTickUnit(0.00005,      numberFormat));
        units.add(new NumberTickUnit(0.0005,       numberFormat));
        units.add(new NumberTickUnit(0.005,        numberFormat));
        units.add(new NumberTickUnit(0.05,         numberFormat));
        units.add(new NumberTickUnit(0.5,          numberFormat));
        units.add(new NumberTickUnit(5L,           numberFormat));
        units.add(new NumberTickUnit(50L,          numberFormat));
        units.add(new NumberTickUnit(500L,         numberFormat));
        units.add(new NumberTickUnit(5000L,        numberFormat));
        units.add(new NumberTickUnit(50000L,       numberFormat));
        units.add(new NumberTickUnit(500000L,      numberFormat));
        units.add(new NumberTickUnit(5000000L,     numberFormat));
        units.add(new NumberTickUnit(50000000L,    numberFormat));
        units.add(new NumberTickUnit(500000000L,   numberFormat));
        units.add(new NumberTickUnit(5000000000L,  numberFormat));

        return units;

    }

    /**
     * Returns a collection of tick units for integer values.
     * Uses a given Locale to create the DecimalFormats.
     *
     * @param locale the locale to use to represent Numbers.
     *
     * @return a collection of tick units for integer values.
     *
     * @deprecated this method has been moved to the NumberAxis class.
     */
    public static TickUnits createIntegerTickUnits(Locale locale) {

        TickUnits units = new TickUnits();

        NumberFormat numberFormat = NumberFormat.getNumberInstance(locale);

        units.add(new NumberTickUnit(1,              numberFormat));
        units.add(new NumberTickUnit(2,              numberFormat));
        units.add(new NumberTickUnit(5,              numberFormat));
        units.add(new NumberTickUnit(10,             numberFormat));
        units.add(new NumberTickUnit(20,             numberFormat));
        units.add(new NumberTickUnit(50,             numberFormat));
        units.add(new NumberTickUnit(100,            numberFormat));
        units.add(new NumberTickUnit(200,            numberFormat));
        units.add(new NumberTickUnit(500,            numberFormat));
        units.add(new NumberTickUnit(1000,           numberFormat));
        units.add(new NumberTickUnit(2000,           numberFormat));
        units.add(new NumberTickUnit(5000,           numberFormat));
        units.add(new NumberTickUnit(10000,          numberFormat));
        units.add(new NumberTickUnit(20000,          numberFormat));
        units.add(new NumberTickUnit(50000,          numberFormat));
        units.add(new NumberTickUnit(100000,         numberFormat));
        units.add(new NumberTickUnit(200000,         numberFormat));
        units.add(new NumberTickUnit(500000,         numberFormat));
        units.add(new NumberTickUnit(1000000,        numberFormat));
        units.add(new NumberTickUnit(2000000,        numberFormat));
        units.add(new NumberTickUnit(5000000,        numberFormat));
        units.add(new NumberTickUnit(10000000,       numberFormat));
        units.add(new NumberTickUnit(20000000,       numberFormat));
        units.add(new NumberTickUnit(50000000,       numberFormat));
        units.add(new NumberTickUnit(100000000,      numberFormat));
        units.add(new NumberTickUnit(200000000,      numberFormat));
        units.add(new NumberTickUnit(500000000,      numberFormat));
        units.add(new NumberTickUnit(1000000000,     numberFormat));
        units.add(new NumberTickUnit(2000000000,     numberFormat));
        units.add(new NumberTickUnit(5000000000.0,   numberFormat));
        units.add(new NumberTickUnit(10000000000.0,  numberFormat));

        return units;

    }

    /**
     * Returns a clone of the collection.
     * 
     * @return A clone.
     * 
     * @throws CloneNotSupportedException if an item in the collection does not support cloning.
     */
    public Object clone() throws CloneNotSupportedException {
        TickUnits clone = (TickUnits) super.clone();
        clone.tickUnits = new java.util.ArrayList(this.tickUnits);
        return clone;
    }
    
    /**
     * Tests an object for equality with this instance.
     * 
     * @param object  the object to test.
     * 
     * @return A boolean.
     */
    public boolean equals(Object object) {
        
        if (object == null) {
            return false;
        }
        
        if (object == this) {
            return true;
        }
        
        if (object instanceof TickUnits) {
            TickUnits tu = (TickUnits) object;    
            return tu.tickUnits.equals(this.tickUnits);
        }
        
        return false;
    }
    
}