Percentage.java

package edu.stanford.hci.r3.units;

public class Percentage extends Units {

        public static final Units ONE = new Percentage(100, new Inches(8.5));

        private Units actualValue;

        private Units maximumValue;

        public Percentage(double percentage, Units maxValue) {
                super(percentage);
                setMaximumValue(maxValue);
                actualValue = maxValue.getUnitsObjectOfSameTypeWithValue(maxValue.getValue() * percentage
                                / 100.0);
        }

        public Units getActualValue() {
                return actualValue;
        }

        public Units getMaximumValue() {
                return maximumValue;
        }

        @Override
        protected double getNumberOfUnitsInOneInch() {
                return actualValue.getNumberOfUnitsInOneInch() * 100.0 / maximumValue.getValue();
        }

        private void setMaximumValue(Units maxVal) {
                maximumValue = maxVal;
        }

        public String toString() {
                return getValue() + " Percent of " + maximumValue + " (" + actualValue + ")";
        }
}

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