/*
* Autopsy Forensic Browser
*
* Copyright 2012 Basis Technology Corp.
* Contact: carrier <at> sleuthkit <dot> org
*
* Licensed 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sleuthkit.autopsy.coreutils;
import java.awt.ComponentOrientation;
/**
* Text utilities
*/
public class TextUtil {
/**
* Determine and return text orientation
* @param text text to determine the text orientation in
* @return detected text orientation that should be used for this type of text
*/
public static ComponentOrientation getTextDirection(String text) {
int rtl_cnt = 0;
for (char c : text.toCharArray()) {
if (Character.isWhitespace(c)) {
continue;
}
// count the RTL chars
byte direction = Character.getDirectionality(c);
if (direction == Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC
|| direction == Character.DIRECTIONALITY_RIGHT_TO_LEFT) {
++rtl_cnt;
}
}
ComponentOrientation orientation = ComponentOrientation.LEFT_TO_RIGHT;
if (text.length() > 1024 && rtl_cnt > 50) {
orientation = ComponentOrientation.RIGHT_TO_LEFT;
} else if (text.length() <= 1024 && rtl_cnt > text.length() / 4) {
orientation = ComponentOrientation.RIGHT_TO_LEFT;
}
return orientation;
}
}