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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
package org.openoffice.xmerge.util;
/**
* Helper class providing static methods to convert data to/from twips.
*/
public class TwipsConverter {
/**
* Convert from twips to cm's.
*
* @param value The {@code short} to be converted.
*
* @return {@code float} containing the converted.
*/
public static float twips2cm(int value) {
float inches = (float) value/1440;
float cm = inches*(float)2.54;
return cm;
}
/**
* Convert from cm's to twips.
*
* @param value {@code float} containing the representation of the value.
*
* @return {@code int} containing the converted value.
*/
private static int cm2twips(float value) {
int twips = (int) ((value/2.54)*1440);
return twips;
}
/**
* Convert from cm's to twips.
*
* @param value {@code float} containing the representation of the value.
*
* @return {@code int} containing the converted value.
*/
private static int inches2twips(float value) {
return (int) (value*1440);
}
/**
* Convert {@code String} to twips.
*
* @param value {@code String} in the form {@literal "1.234cm"} or
* {@literal "1.234inch"}.
* @param defaultValue the default value.
* @return the converted value if {@code value} is a well-formatted {@code
* String}, {@code defaultValue} otherwise.
*/
public static int convert2twips(String value, int defaultValue) {
int posi;
if ((posi = value.indexOf("cm")) != -1) {
float cm = Float.parseFloat(value.substring(0,posi));
return cm2twips(cm);
} else if ((posi = value.indexOf("inch")) != -1) {
float inches = Float.parseFloat(value.substring(0,posi));
return inches2twips(inches);
}
return defaultValue;
}
}
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