Examples with CharacterEncoder uk.me.parabola.imgfmt.app.labelenc.CharacterEncoder used on opensource projects

Example 1 with CharacterEncoder

use of uk.me.parabola.imgfmt.app.labelenc.CharacterEncoder in project mkgmap by openstreetmap.

the class ImgHeader method setDescription.

/**
 * Set the description.  It is spread across two areas in the header.
 *
 * It appears that the description has to be in ascii.
 *
 * @param desc The description.
 */
protected void setDescription(String desc) {
    // Force the description to be in ascii.
    CodeFunctions funcs = CodeFunctions.createEncoderForLBL(0, 0);
    CharacterEncoder encoder = funcs.getEncoder();
    EncodedText enc = encoder.encodeText(desc);
    byte[] ctext = enc.getCtext();
    int len = enc.getLength() - 1;
    if (len > 50)
        throw new IllegalArgumentException("Description is too long (max 50)");
    byte[] part1 = new byte[LEN_MAP_DESCRIPTION];
    Arrays.fill(part1, (byte) ' ');
    byte[] part2 = new byte[LEN_MAP_NAME_CONT];
    Arrays.fill(part2, (byte) ' ');
    if (ctext != null) {
        if (len > LEN_MAP_DESCRIPTION) {
            System.arraycopy(ctext, 0, part1, 0, LEN_MAP_DESCRIPTION);
            System.arraycopy(ctext, LEN_MAP_DESCRIPTION, part2, 0, len - LEN_MAP_DESCRIPTION);
        } else {
            System.arraycopy(ctext, 0, part1, 0, len);
        }
    }
    header.position(OFF_MAP_DESCRIPTION);
    header.put(part1);
    header.position(OFF_MAP_NAME_CONT);
    header.put(part2);
    // really?
    header.put((byte) 0);
}