Makelangelo-software

package com.marginallyclever.convenience.helpers;

import java.util.Locale;

/**
 * Convenience functions for working with Strings.
 * @author Dan Royer
 * @since 7.0.0
 */
public class StringHelper {
	
	/**
	 * format floats with 3 decimal places in US locale ONLY
	 * @param arg0
	 * @return the formatted string
	 */
	public static String formatFloat(float arg0) {
		//return Float.toString(roundOff(arg0));
		return String.format(Locale.US,"%.3f", arg0);
	}

	/**
	 * format doubles with 3 decimal places in US locale ONLY
	 * @param arg0
	 * @return the formatted string
	 */
	public static String formatDouble(double arg0) {
		//return Float.toString(roundOff(arg0));
		return String.format(Locale.US,"%.3f", arg0);
	}
	
	/**
	 * @param s string to pad
	 * @param n number of spaces to pad
	 * @return newly formatted string.
	 */
	public static String padRight(String s, int n) {
		return String.format("%1$-" + n + "s", s);
	}

	public static String getElapsedTime(int seconds) {
	    seconds /= 60;
	    long minutes = seconds % 60;
	    seconds /= 60;
	    long hours = seconds % 24;
	    return String.format("%02d:%02d:%02d", hours, minutes, seconds);
	}

	/**
	 * @param number the number to convert to hex
	 * @return the hex number returned is 6 characters long and does not include the '0x' at the start.
	 *  	   If needed it will pad the left end with zeros.
	 */
	public static String paddedHex(int number) {
		String shortHex = Integer.toHexString(number);
		if(shortHex.length()==6) return shortHex;
		StringBuilder builder = new StringBuilder();
		for(int i=0;i<6-shortHex.length();++i) {
			builder.append("0");
		}
		builder.append(shortHex);
		return builder.toString();
	}
}