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package tim.prune.gui;
import java.text.NumberFormat;
import tim.prune.I18nManager;
/**
* Class to provide general display util methods
*/
public abstract class DisplayUtils
{
/** Number formatter for one decimal place */
private static final NumberFormat FORMAT_ONE_DP = NumberFormat.getNumberInstance();
/** Static block to initialise the one d.p. formatter */
static
{
FORMAT_ONE_DP.setMaximumFractionDigits(1);
FORMAT_ONE_DP.setMinimumFractionDigits(1);
}
/** Flexible number formatter with different decimal places */
private static final NumberFormat FORMAT_FLEX = NumberFormat.getNumberInstance();
/**
* Build a String to describe a time duration
* @param inNumSecs number of seconds
* @return time as a string, days, hours, mins, secs as appropriate
*/
public static String buildDurationString(long inNumSecs)
{
if (inNumSecs <= 0L) return "";
if (inNumSecs < 60L) return "" + inNumSecs + I18nManager.getText("display.range.time.secs");
if (inNumSecs < 3600L) return "" + (inNumSecs / 60) + I18nManager.getText("display.range.time.mins")
+ " " + (inNumSecs % 60) + I18nManager.getText("display.range.time.secs");
if (inNumSecs < 86400L) return "" + (inNumSecs / 60 / 60) + I18nManager.getText("display.range.time.hours")
+ " " + ((inNumSecs / 60) % 60) + I18nManager.getText("display.range.time.mins");
if (inNumSecs < 432000L) return "" + (inNumSecs / 86400L) + I18nManager.getText("display.range.time.days")
+ " " + (inNumSecs / 60 / 60) % 24 + I18nManager.getText("display.range.time.hours");
if (inNumSecs < 86400000L) return "" + (inNumSecs / 86400L) + I18nManager.getText("display.range.time.days");
return "big";
}
/**
* @param inNumber number to format
* @return formatted number to one decimal place
*/
public static String formatOneDp(double inNumber)
{
return FORMAT_ONE_DP.format(inNumber);
}
/**
* Format a number to a sensible precision
* @param inVal value to format
* @return formatted String using local format
*/
public static String roundedNumber(double inVal)
{
// Set precision of formatter
int numDigits = 0;
if (inVal < 1.0)
numDigits = 3;
else if (inVal < 10.0)
numDigits = 2;
else if (inVal < 100.0)
numDigits = 1;
// set formatter
FORMAT_FLEX.setMaximumFractionDigits(numDigits);
FORMAT_FLEX.setMinimumFractionDigits(numDigits);
return FORMAT_FLEX.format(inVal);
}
/**
* Convert the given hour and minute values into a string H:MM
* @param inHour hour of day, 0-24
* @param inMinute minute, 0-59
* @return string, either H:MM or HH:MM
*/
public static String makeTimeString(int inHour, int inMinute)
{
StringBuilder sb = new StringBuilder();
final int hour = (inHour >= 0 && inHour <= 24) ? inHour : 0;
sb.append(hour);
sb.append(':');
final int minute = (inMinute >= 0 && inMinute <= 59) ? inMinute : 0;
if (minute <= 9) {sb.append('0');}
sb.append(minute);
return sb.toString();
}
}
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