Package org.jfree.chart.util

Class HexNumberFormat

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable
    public class HexNumberFormat
extends java.text.NumberFormat
    A custom number formatter that formats numbers as hexadecimal strings. There are some limitations, so be careful using this class.
    See Also:
    Serialized Form

    • Nested Class Summary

      • Nested classes/interfaces inherited from class java.text.NumberFormat

        java.text.NumberFormat.Field

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static int BYTE
      Number of hexadecimal digits for a byte.
      static int DWORD
      Number of hexadecimal digits for a double word.
      private int m_numDigits
      The number of digits (shorter strings will be left padded).
      static int QWORD
      Number of hexadecimal digits for a quad word.
      static int WORD
      Number of hexadecimal digits for a word.

      • Fields inherited from class java.text.NumberFormat

        FRACTION_FIELD, INTEGER_FIELD

    • Constructor Summary

      Constructors 
      Constructor Description
      HexNumberFormat()
      Creates a new instance with 8 digits.
      HexNumberFormat​(int digits)
      Creates a new instance with the specified number of digits.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.StringBuffer format​(double number, java.lang.StringBuffer toAppendTo, java.text.FieldPosition pos)
      Formats the specified number as a hexadecimal string.
      java.lang.StringBuffer format​(long number, java.lang.StringBuffer toAppendTo, java.text.FieldPosition pos)
      Formats the specified number as a hexadecimal string.
      int getNumberOfDigits()
      Returns the number of digits.
      java.lang.Number parse​(java.lang.String source, java.text.ParsePosition parsePosition)
      Parsing is not implemented, so this method always returns null.
      void setNumberOfDigits​(int digits)
      Sets the number of digits.

      • Methods inherited from class java.text.NumberFormat

        clone, equals, format, format, format, getAvailableLocales, getCurrency, getCurrencyInstance, getCurrencyInstance, getInstance, getInstance, getIntegerInstance, getIntegerInstance, getMaximumFractionDigits, getMaximumIntegerDigits, getMinimumFractionDigits, getMinimumIntegerDigits, getNumberInstance, getNumberInstance, getPercentInstance, getPercentInstance, getRoundingMode, hashCode, isGroupingUsed, isParseIntegerOnly, parse, parseObject, setCurrency, setGroupingUsed, setMaximumFractionDigits, setMaximumIntegerDigits, setMinimumFractionDigits, setMinimumIntegerDigits, setParseIntegerOnly, setRoundingMode

      • Methods inherited from class java.text.Format

        format, formatToCharacterIterator, parseObject

      • Methods inherited from class java.lang.Object

        finalize, getClass, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • BYTE

        public static final int BYTE
        Number of hexadecimal digits for a byte.
        See Also:
        Constant Field Values

      • WORD

        public static final int WORD
        Number of hexadecimal digits for a word.
        See Also:
        Constant Field Values

      • DWORD

        public static final int DWORD
        Number of hexadecimal digits for a double word.
        See Also:
        Constant Field Values

      • QWORD

        public static final int QWORD
        Number of hexadecimal digits for a quad word.
        See Also:
        Constant Field Values

      • m_numDigits

        private int m_numDigits
        The number of digits (shorter strings will be left padded).

    • Constructor Detail

      • HexNumberFormat

        public HexNumberFormat()
        Creates a new instance with 8 digits.

      • HexNumberFormat

        public HexNumberFormat​(int digits)
        Creates a new instance with the specified number of digits.
        Parameters:
        digits - the digits.

    • Method Detail

      • getNumberOfDigits

        public final int getNumberOfDigits()
        Returns the number of digits.
        Returns:
        The number of digits.

      • setNumberOfDigits

        public void setNumberOfDigits​(int digits)
        Sets the number of digits.
        Parameters:
        digits - the number of digits.

      • format

        public java.lang.StringBuffer format​(double number,
                                     java.lang.StringBuffer toAppendTo,
                                     java.text.FieldPosition pos)
        Formats the specified number as a hexadecimal string. The decimal fraction is ignored.
        Specified by:
        format in class java.text.NumberFormat
        Parameters:
        number - the number to format.
        toAppendTo - the buffer to append to (ignored here).
        pos - the field position (ignored here).
        Returns:
        The string buffer.

      • format

        public java.lang.StringBuffer format​(long number,
                                     java.lang.StringBuffer toAppendTo,
                                     java.text.FieldPosition pos)
        Formats the specified number as a hexadecimal string. The decimal fraction is ignored.
        Specified by:
        format in class java.text.NumberFormat
        Parameters:
        number - the number to format.
        toAppendTo - the buffer to append to (ignored here).
        pos - the field position (ignored here).
        Returns:
        The string buffer.

      • parse

        public java.lang.Number parse​(java.lang.String source,
                              java.text.ParsePosition parsePosition)
        Parsing is not implemented, so this method always returns null.
        Specified by:
        parse in class java.text.NumberFormat
        Parameters:
        source - ignored.
        parsePosition - ignored.
        Returns:
        Always null.