gov.sns.tools.plot
Class DateGraphFormat

java.lang.Object
  |
  +--java.text.Format
        |
        +--java.text.NumberFormat
              |
              +--java.text.DecimalFormat
                    |
                    +--gov.sns.tools.plot.DateGraphFormat

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

public class DateGraphFormat

extends java.text.DecimalFormat

DateGraphFormat is the subclass of the DecimalFormat class. It produces the x-axis markers as a date by using an internal date format. X-axis values are supposed to be the number of seconds since January 1, 1970, 00:00:00 GMT. To use this format for the x-axis call the method setNumberFormatX(DecimalFormat df) of the instance of FunctionGraphsJPanel class with the DateGraphFormat instance instead of DecimalFormat.

See Also:

Serialized Form

Field Summary

Fields inherited from class java.text.NumberFormat

FRACTION_FIELD, INTEGER_FIELD

Constructor Summary

DateGraphFormat()
Constructor with a default DateFormat (it is SimpleDateFormat("HH:mm:ss")).

DateGraphFormat(java.text.DateFormat dateFormatIn)
Constructor with a DateFormat as a parameter.

DateGraphFormat(java.lang.String pattern)
Constructor with a date format pattern as the parameter.

Method Summary

java.lang.StringBuffer	format(double t_sec, java.lang.StringBuffer toAppendTo, java.text.FieldPosition pos) The overridden format method of the DecimalFormat class.
static java.util.Date	getDate(double seconds) Transforms the seconds since January 1, 1970, 00:00:00 GMT to the date.
java.text.DateFormat	getDateFormat() Returns the instance of the DateFormat class that is used to format the seconds to the date.
static double	getSeconds(java.util.Date date) Transforms the date to the seconds since January 1, 1970, 00:00:00 GMT.
void	setDateFormat(java.text.DateFormat dateFormat) Sets the instance of the DateFormat class that will be used to format the seconds to the date.

Methods inherited from class java.text.DecimalFormat

applyLocalizedPattern, applyPattern, clone, equals, format, formatToCharacterIterator, getCurrency, getDecimalFormatSymbols, getGroupingSize, getMultiplier, getNegativePrefix, getNegativeSuffix, getPositivePrefix, getPositiveSuffix, hashCode, isDecimalSeparatorAlwaysShown, parse, setCurrency, setDecimalFormatSymbols, setDecimalSeparatorAlwaysShown, setGroupingSize, setMaximumFractionDigits, setMaximumIntegerDigits, setMinimumFractionDigits, setMinimumIntegerDigits, setMultiplier, setNegativePrefix, setNegativeSuffix, setPositivePrefix, setPositiveSuffix, toLocalizedPattern, toPattern

Methods inherited from class java.text.NumberFormat

format, format, format, getAvailableLocales, getCurrencyInstance, getCurrencyInstance, getInstance, getInstance, getIntegerInstance, getIntegerInstance, getMaximumFractionDigits, getMaximumIntegerDigits, getMinimumFractionDigits, getMinimumIntegerDigits, getNumberInstance, getNumberInstance, getPercentInstance, getPercentInstance, isGroupingUsed, isParseIntegerOnly, parse, parseObject, setGroupingUsed, setParseIntegerOnly

Methods inherited from class java.text.Format

format, parseObject

Methods inherited from class java.lang.Object

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

Constructor Detail

DateGraphFormat

public DateGraphFormat()

Constructor with a default DateFormat (it is SimpleDateFormat("HH:mm:ss")).

DateGraphFormat

public DateGraphFormat(java.lang.String pattern)

Constructor with a date format pattern as the parameter.

DateGraphFormat

public DateGraphFormat(java.text.DateFormat dateFormatIn)

Constructor with a DateFormat as a parameter.

Method Detail

format

public java.lang.StringBuffer format(double t_sec,
                                     java.lang.StringBuffer toAppendTo,
                                     java.text.FieldPosition pos)

The overridden format method of the DecimalFormat class.

Overrides:

format in class java.text.DecimalFormat

getDateFormat

public java.text.DateFormat getDateFormat()

Returns the instance of the DateFormat class that is used to format the seconds to the date.

setDateFormat

public void setDateFormat(java.text.DateFormat dateFormat)

Sets the instance of the DateFormat class that will be used to format the seconds to the date.

getSeconds

public static double getSeconds(java.util.Date date)

Transforms the date to the seconds since January 1, 1970, 00:00:00 GMT.

Returns:

double as a number of seconds

getDate

public static java.util.Date getDate(double seconds)

Transforms the seconds since January 1, 1970, 00:00:00 GMT to the date.

Returns:

an instance of the Date class.