ca.phon.ui.DateTimeDocument.java Source code

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Here is the source code for ca.phon.ui.DateTimeDocument.java

Source

/*
 * Phon - An open source tool for research in phonology.
 * Copyright (C) 2005 - 2015, Gregory Hedlund <ghedlund@mun.ca> and Yvan Rose <yrose@mun.ca>
 * Dept of Linguistics, Memorial University <https://phon.ca>
 * 
 * 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
 * (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, see <http://www.gnu.org/licenses/>.
 */
package ca.phon.ui;

import java.util.logging.Level;
import java.util.logging.Logger;

import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;

import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

public class DateTimeDocument extends PlainDocument {

    private static final long serialVersionUID = -3209553456147504916L;

    private final static Logger LOGGER = Logger.getLogger(DateTimeDocument.class.getName());

    String testRegex = "([0-9]{4})-([0-9]{2})-([0-9]{2})";

    final DateTimeFormatter dateFormatter = DateTimeFormat.forPattern("yyyy-MM-dd");

    public DateTimeDocument(DateTime date) {
        super();

        setDateTime(date);
    }

    @Override
    public void insertString(int offs, String val, AttributeSet attr) throws BadLocationException {
        if (val.length() == 0)
            super.insertString(offs, val, attr);

        if (val.length() == 1) {

            int numChars = 1;
            if (offs < getLength() - 1) {
                String nextChar = getText(offs + 1, 1);
                if (nextChar.equals("-")) {
                    numChars = 2;
                    val = val + "-";
                }
            }

            String testString = getText(0, offs) + val + getText(offs + numChars, getLength() - (offs + numChars));

            try {
                dateFormatter.parseDateTime(testString);
            } catch (Exception e) {
                //            LOGGER.log(Level.SEVERE, e.getLocalizedMessage(), e);
                return;
            }

            super.remove(offs, numChars);
            super.insertString(offs, val, attr);

        } else if (val.matches(testRegex)) {
            super.remove(0, getLength());
            super.insertString(getLength(), val, attr);
        }
    }

    @Override
    public void remove(int offs, int len) throws BadLocationException {
        super.remove(offs, len);
    }

    public DateTime getDateTime() {
        DateTime retVal = DateTime.now();

        String dateText = "";
        try {
            dateText = getText(0, getLength());
        } catch (BadLocationException e) {
            LOGGER.log(Level.SEVERE, e.getLocalizedMessage(), e);
        }

        try {
            retVal = dateFormatter.parseDateTime(dateText);
        } catch (Exception e) {
            LOGGER.log(Level.FINE, e.getLocalizedMessage(), e);
        }

        return retVal;
    }

    public void setDateTime(DateTime date) {
        try {
            super.remove(0, getLength());
            final String dateText = dateFormatter.print(date);
            super.insertString(0, dateText, null);
        } catch (BadLocationException e) {
            LOGGER.log(Level.SEVERE, e.getLocalizedMessage(), e);
        }
    }
}