Java JTextComponent Delete deleteWord(JTextComponent textComponent)

Description

delete Word

License

Open Source License

Declaration

public static void deleteWord(JTextComponent textComponent) 

Method Source Code

//package com.java2s;
/*/*from   www .j  av a2 s  .c o m*/
 * TextUtilities.java
 *
 * Copyright (C) 2002-2015 Takis Diakoumis
 *
 * 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 3
 * of the License, or 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, see <http://www.gnu.org/licenses/>.
 *
 */

import javax.swing.text.JTextComponent;

public class Main {
    public static void deleteWord(JTextComponent textComponent) {
        char space = ' ';
        String _space = " ";
        int caretIndex = textComponent.getCaretPosition();

        String text = textComponent.getText();
        StringBuilder sb = new StringBuilder(text);

        int startOfWordIndex = -1;
        int endOfWordIndex = sb.indexOf(_space, caretIndex);

        char[] textChars = text.toCharArray();

        for (int i = 0; i < textChars.length; i++) {

            if (i >= caretIndex) {
                break;
            }

            else {

                if (textChars[i] == space)
                    startOfWordIndex = i;

            }

        }

        if (endOfWordIndex == -1)
            return;

        else if (startOfWordIndex == 0 && endOfWordIndex == 0)
            return;

        else if (startOfWordIndex == endOfWordIndex)
            return;

        sb.delete(startOfWordIndex + 1, endOfWordIndex);
        textComponent.setText(sb.toString());
        textComponent.setCaretPosition(startOfWordIndex + 1);
    }
}

Related

1. appendText(JTextComponent fld, String s, String delimiter)
2. delete(JTextComponent textComponent)
3. deleteLine(JTextComponent textComponent)
4. deleteSelection(JTextComponent textComponent)
5. modelToView(final JTextComponent scrollableComponent, int pos)