ImgCCITT.java

/*
 * $Id: 5a87ae713a10575262582815c540130d28e399d6 $
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2016 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
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package com.itextpdf.text;

import com.itextpdf.text.pdf.codec.TIFFFaxDecoder;
import java.net.URL;
import com.itextpdf.text.error_messages.MessageLocalization;

/**
 * CCITT Image data that has to be inserted into the document
 *
 * @see		Element
 * @see		Image
 *
 * @author  Paulo Soares
 */

public class ImgCCITT extends Image {

    ImgCCITT(Image image) {
        super(image);
    }

    /** Creates an Image with CCITT compression.
     *
     * @param width the exact width of the image
     * @param height the exact height of the image
     * @param reverseBits reverses the bits in <code>data</code>.
     *  Bit 0 is swapped with bit 7 and so on.
     * @param typeCCITT the type of compression in <code>data</code>. It can be
     * CCITTG4, CCITTG31D, CCITTG32D
     * @param parameters parameters associated with this stream. Possible values are
     * CCITT_BLACKIS1, CCITT_ENCODEDBYTEALIGN, CCITT_ENDOFLINE and CCITT_ENDOFBLOCK or a
     * combination of them
     * @param data the image data
     * @throws BadElementException on error
     */

    public ImgCCITT(int width, int height, boolean reverseBits, int typeCCITT, int parameters, byte[] data) throws BadElementException{
        super((URL)null);
        if (typeCCITT != CCITTG4 && typeCCITT != CCITTG3_1D && typeCCITT != CCITTG3_2D)
            throw new BadElementException(MessageLocalization.getComposedMessage("the.ccitt.compression.type.must.be.ccittg4.ccittg3.1d.or.ccittg3.2d"));
        if (reverseBits)
            TIFFFaxDecoder.reverseBits(data);
        type = IMGRAW;
        scaledHeight = height;
        setTop(scaledHeight);
        scaledWidth = width;
        setRight(scaledWidth);
        colorspace = parameters;
        bpc = typeCCITT;
        rawData = data;
        plainWidth = getWidth();
        plainHeight = getHeight();
    }
}