Example usage for com.google.gwt.i18n.shared.impl DateRecord setTzOffset

Introduction

In this page you can find the example usage for com.google.gwt.i18n.shared.impl DateRecord setTzOffset.

Prototype

public void setTzOffset(int tzOffset) 

Source Link

Document

Set timezone offset, in minutes.

Usage

From source file:com.rnb.plategka.shared.DateTimeFormat.java

License:Apache License

/**
 * Method parses time zone offset.//from ww w  .  j  a v  a2 s.c  om
 * 
 * @param text
 *            the time text to be parsed
 * @param pos
 *            Parse position
 * @param cal
 *            DateRecord object that holds parsed value
 * 
 * @return <code>true</code> if parsing successful, otherwise
 *         <code>false</code>
 */
private boolean parseTimeZoneOffset(String text, int[] pos, DateRecord cal) {
    if (pos[0] >= text.length()) {
        cal.setTzOffset(0);
        return true;
    }

    int sign;
    switch (text.charAt(pos[0])) {
    case '+':
        sign = 1;
        break;
    case '-':
        sign = -1;
        break;
    default:
        cal.setTzOffset(0);
        return true;
    }
    ++(pos[0]);

    // Look for hours:minutes or hhmm.
    int st = pos[0];
    int value = parseInt(text, pos);
    if (value == 0 && pos[0] == st) {
        return false;
    }

    int offset;
    if (pos[0] < text.length() && text.charAt(pos[0]) == ':') {
        // This is the hours:minutes case.
        offset = value * MINUTES_PER_HOUR;
        ++(pos[0]);
        st = pos[0];
        value = parseInt(text, pos);
        if (value == 0 && pos[0] == st) {
            return false;
        }
        offset += value;
    } else {
        // This is the hhmm case.
        offset = value;
        // Assume "-23".."+23" refers to hours.
        if (offset < 24 && (pos[0] - st) <= 2) {
            offset *= MINUTES_PER_HOUR;
        } else {
            offset = offset % 100 + offset / 100 * MINUTES_PER_HOUR;
        }
    }

    offset *= sign;
    cal.setTzOffset(-offset);
    return true;
}

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