*
     * <p> Subclasses that do not support compression must ensure that
     * this value is set to <code>false</code>.
     */
    protected boolean canWriteCompressed = false;

    /**
     * The mode controlling compression settings, which must be set to
     * one of the four <code>MODE_*</code> values.  The default is
     * <code>MODE_COPY_FROM_METADATA</code>.
     *
     * <p> Subclasses that do not support compression may ignore this
     * value.
     *
     * @see #MODE_DISABLED
     * @see #MODE_EXPLICIT
     * @see #MODE_COPY_FROM_METADATA
     * @see #MODE_DEFAULT
     * @see #setCompressionMode
     * @see #getCompressionMode
     */
    protected int compressionMode = MODE_COPY_FROM_METADATA;

    /**
     * An array of <code>String</code>s containing the names of the
     * available compression types.  Subclasses must set the value
     * manually.
     *
     * <p> Subclasses that do not support compression may ignore this
     * value.
     */
    protected String[] compressionTypes = null;

    /**
     * A <code>String</code> containing the name of the current
     * compression type, or <code>null</code> if none is set.
     *
     * <p> Subclasses that do not support compression may ignore this
     * value.
     */
    protected String compressionType = null;

    /**
     * A <code>float</code> containing the current compression quality
     * setting.  The initial value is <code>1.0F</code>.
     *
     * <p> Subclasses that do not support compression may ignore this
     * value.
     */
    protected float compressionQuality = 1.0F;

    /**
     * A <code>Locale</code> to be used to localize compression type
     * names and quality descriptions, or <code>null</code> to use a
     * default <code>Locale</code>.  Subclasses must set the value
     * manually.
     */
    protected Locale locale = null;

    /**
     * Constructs an empty <code>ImageWriteParam</code>.  It is up to
     * the subclass to set up the instance variables properly.
     */
    protected ImageWriteParam() {}

    /**
     * Constructs an <code>ImageWriteParam</code> set to use a
     * given <code>Locale</code>.
     *
     * @param locale a <code>Locale</code> to be used to localize
     * compression type names and quality descriptions, or
     * <code>null</code>.
     */
    public ImageWriteParam(Locale locale) {
        this.locale = locale;
    }

    // Return a deep copy of the array
    private static Dimension[] clonePreferredTileSizes(Dimension[] sizes) {
        if (sizes == null) {
            return null;
        }
        Dimension[] temp = new Dimension[sizes.length];
        for (int i = 0; i < sizes.length; i++) {
            temp[i] = new Dimension(sizes[i]);
        }
        return temp;
    }

    /**
     * Returns the currently set <code>Locale</code>, or
     * <code>null</code> if only a default <code>Locale</code> is
     * supported.
     *
     * @return the current <code>Locale</code>, or <code>null</code>.
     */
    public Locale getLocale() {
        return locale;
    }