Determines the start of a word for the given model location in Swing text Component. - Java Swing

Java examples for Swing:JTextComponent

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Description

Determines the start of a word for the given model location in Swing text Component.

Demo Code

/**************************************************************************
 OmegaT - Computer Assisted Translation (CAT) tool 
          with fuzzy matching, translation memory, keyword search, 
          glossaries, and translation leveraging into updated projects.

 Copyright (C) 2008 Alex Buloichik//from  www  .j av  a  2  s .co m
               2012 Didier Briel
               Home page: http://www.omegat.org/
               Support center: http://groups.yahoo.com/group/OmegaT/

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 **************************************************************************/
//package com.java2s;

import javax.swing.text.BadLocationException;
import javax.swing.text.JTextComponent;
import javax.swing.text.Utilities;

public class Main {
    /**
     * Determines the start of a word for the given model location. This method
     * skips direction char.
     * 
     * TODO: change to use document's locale
     * 
     * @param c
     * @param offs
     * @return
     * @throws BadLocationException
     */
    public static int getWordStart(JTextComponent c, int offs)
            throws BadLocationException {
        int result = Utilities.getWordStart(c, offs);
        char ch = c.getDocument().getText(result, 1).charAt(0);
        if (isDirectionChar(ch)) {
            result++;
        }
        return result;
    }

    /**
     * Check if char is direction char(u202A,u202B,u202C).
     * 
     * @param ch
     *            char to check
     * @return true if it's direction char
     */
    private static boolean isDirectionChar(final char ch) {
        return ch == '\u202A' || ch == '\u202B' || ch == '\u202C';
    }
}

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