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package tim.prune.data;
import tim.prune.I18nManager;
/**
* Class to represent a time difference, like the difference between two Timestamp objects,
* and methods for representing and displaying them.
*/
public class TimeDifference
{
private long _totalSeconds = 0L;
private int _seconds = 0;
private int _minutes = 0;
private int _hours = 0;
private String _description = null;
/**
* Constructor using long
* @param inNumSeconds number of seconds time difference
*/
public TimeDifference(long inNumSeconds)
{
_totalSeconds = inNumSeconds;
if (inNumSeconds < 0) {inNumSeconds = -inNumSeconds;}
_hours = (int) (inNumSeconds / 60 / 60);
_minutes = (int) (inNumSeconds / 60 - _hours * 60);
_seconds = (int) (inNumSeconds % 60);
}
/**
* Constructor giving each field separately
* @param inHours number of hours
* @param inMinutes number of minutes
* @param inSeconds number of seconds
* @param inPositive true for positive time difference
*/
public TimeDifference(int inHours, int inMinutes, int inSeconds, boolean inPositive)
{
// Check for negative values?
_hours = inHours;
_minutes = inMinutes;
_seconds = inSeconds;
_totalSeconds = inHours * 3600L + inMinutes * 60L + inSeconds;
if (!inPositive) {_totalSeconds = -_totalSeconds;}
}
/**
* @return total number of seconds time difference
*/
public long getTotalSeconds()
{
return _totalSeconds;
}
/**
* @return number of hours
*/
public int getNumHours()
{
return _hours;
}
/**
* @return number of minutes
*/
public int getNumMinutes()
{
return _minutes;
}
/**
* @return number of seconds
*/
public int getNumSeconds()
{
return _seconds;
}
/**
* @return true if time difference positive
*/
public boolean getIsPositive()
{
return _totalSeconds >= 0L;
}
/**
* Build a String to describe the time duration
* @return time as a string, days, hours, mins, secs as appropriate
*/
public String getDescription()
{
if (_description != null) {return _description;}
StringBuffer buffer = new StringBuffer();
boolean started = false;
// hours
if (_hours > 0)
{
buffer.append(_hours).append(' ').append(I18nManager.getText("display.range.time.hours"));
started = true;
}
// minutes
if (_minutes > 0)
{
if (started) {buffer.append(", ");}
else {started = true;}
buffer.append(_minutes).append(' ').append(I18nManager.getText("display.range.time.mins"));
}
// seconds
if (_seconds > 0 || !started)
{
if (started) {buffer.append(", ");}
buffer.append(_seconds).append(' ').append(I18nManager.getText("display.range.time.secs"));
}
_description = buffer.toString();
return _description;
}
}
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