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/*
 * $Id: Image.java 4847 2011-05-05 19:46:13Z redlab_b $
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2011 1T3XT BVBA
 * 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):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: [email protected]
 */
package com.itextpdf.text;

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Constructor;
import java.net.MalformedURLException;
import java.net.URL;

import com.itextpdf.text.error_messages.MessageLocalization;
import com.itextpdf.text.pdf.ICC_Profile;
import com.itextpdf.text.pdf.PRIndirectReference;
import com.itextpdf.text.pdf.PdfArray;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfDictionary;
import com.itextpdf.text.pdf.PdfIndirectReference;
import com.itextpdf.text.pdf.PdfName;
import com.itextpdf.text.pdf.PdfNumber;
import com.itextpdf.text.pdf.PdfOCG;
import com.itextpdf.text.pdf.PdfObject;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStream;
import com.itextpdf.text.pdf.PdfTemplate;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.pdf.RandomAccessFileOrArray;
import com.itextpdf.text.pdf.codec.BmpImage;
import com.itextpdf.text.pdf.codec.CCITTG4Encoder;
import com.itextpdf.text.pdf.codec.GifImage;
import com.itextpdf.text.pdf.codec.JBIG2Image;
import com.itextpdf.text.pdf.codec.PngImage;
import com.itextpdf.text.pdf.codec.TiffImage;

/**
 * An Image is the representation of a graphic element (JPEG, PNG
 * or GIF) that has to be inserted into the document
 *
 * @see Element
 * @see Rectangle
 */

public abstract class Image extends Rectangle {

	// static final membervariables

	/** this is a kind of image alignment. */
	public static final int DEFAULT = 0;

	/** this is a kind of image alignment. */
	public static final int RIGHT = 2;

	/** this is a kind of image alignment. */
	public static final int LEFT = 0;

	/** this is a kind of image alignment. */
	public static final int MIDDLE = 1;

	/** this is a kind of image alignment. */
	public static final int TEXTWRAP = 4;

	/** this is a kind of image alignment. */
	public static final int UNDERLYING = 8;

	/** This represents a coordinate in the transformation matrix. */
	public static final int AX = 0;

	/** This represents a coordinate in the transformation matrix. */
	public static final int AY = 1;

	/** This represents a coordinate in the transformation matrix. */
	public static final int BX = 2;

	/** This represents a coordinate in the transformation matrix. */
	public static final int BY = 3;

	/** This represents a coordinate in the transformation matrix. */
	public static final int CX = 4;

	/** This represents a coordinate in the transformation matrix. */
	public static final int CY = 5;

	/** This represents a coordinate in the transformation matrix. */
	public static final int DX = 6;

	/** This represents a coordinate in the transformation matrix. */
	public static final int DY = 7;

	/** type of image */
	public static final int ORIGINAL_NONE = 0;

	/** type of image */
	public static final int ORIGINAL_JPEG = 1;

	/** type of image */
	public static final int ORIGINAL_PNG = 2;

	/** type of image */
	public static final int ORIGINAL_GIF = 3;

	/** type of image */
	public static final int ORIGINAL_BMP = 4;

	/** type of image */
	public static final int ORIGINAL_TIFF = 5;

	/** type of image */
	public static final int ORIGINAL_WMF = 6;

	/** type of image */
    public static final int ORIGINAL_PS = 7;

	/** type of image */
	public static final int ORIGINAL_JPEG2000 = 8;

	/**
	 * type of image
	 * @since	2.1.5
	 */
	public static final int ORIGINAL_JBIG2 = 9;

    // member variables

	/** The image type. */
	protected int type;

	/** The URL of the image. */
	protected URL url;

	/** The raw data of the image. */
	protected byte rawData[];

	/** The bits per component of the raw image. It also flags a CCITT image. */
	protected int bpc = 1;

	/** The template to be treated as an image. */
	protected PdfTemplate template[] = new PdfTemplate[1];

	/** The alignment of the Image. */
	protected int alignment;

	/** Text that can be shown instead of the image. */
	protected String alt;

	/** This is the absolute X-position of the image. */
	protected float absoluteX = Float.NaN;

	/** This is the absolute Y-position of the image. */
	protected float absoluteY = Float.NaN;

	/** This is the width of the image without rotation. */
	protected float plainWidth;

	/** This is the width of the image without rotation. */
	protected float plainHeight;

	/** This is the scaled width of the image taking rotation into account. */
	protected float scaledWidth;

	/** This is the original height of the image taking rotation into account. */
	protected float scaledHeight;

    /**
     * The compression level of the content streams.
     * @since	2.1.3
     */
    protected int compressionLevel = PdfStream.DEFAULT_COMPRESSION;

	/** an iText attributed unique id for this image. */
	protected Long mySerialId = getSerialId();

	// image from file or URL

	/**
	 * Constructs an Image -object, using an url .
	 *
	 * @param url
	 *            the URL where the image can be found.
	 */
	public Image(final URL url) {
		super(0, 0);
		this.url = url;
		this.alignment = DEFAULT;
		rotationRadians = 0;
	}

	/**
	 * Gets an instance of an Image.
	 *
	 * @param url
	 *            an URL
	 * @return an Image
	 * @throws BadElementException
	 * @throws MalformedURLException
	 * @throws IOException
	 */
	public static Image getInstance(final URL url) throws BadElementException,
			MalformedURLException, IOException {
		InputStream is = null;
		try {
			is = url.openStream();
			int c1 = is.read();
			int c2 = is.read();
			int c3 = is.read();
			int c4 = is.read();
			// jbig2
			int c5 = is.read();
			int c6 = is.read();
			int c7 = is.read();
			int c8 = is.read();
			is.close();

			is = null;
			if (c1 == 'G' && c2 == 'I' && c3 == 'F') {
				GifImage gif = new GifImage(url);
				Image img = gif.getImage(1);
				return img;
			}
			if (c1 == 0xFF && c2 == 0xD8) {
				return new Jpeg(url);
			}
			if (c1 == 0x00 && c2 == 0x00 && c3 == 0x00 && c4 == 0x0c) {
				return new Jpeg2000(url);
			}
			if (c1 == 0xff && c2 == 0x4f && c3 == 0xff && c4 == 0x51) {
				return new Jpeg2000(url);
			}
			if (c1 == PngImage.PNGID[0] && c2 == PngImage.PNGID[1]
					&& c3 == PngImage.PNGID[2] && c4 == PngImage.PNGID[3]) {
				return PngImage.getImage(url);
			}
			if (c1 == 0xD7 && c2 == 0xCD) {
				return new ImgWMF(url);
			}
			if (c1 == 'B' && c2 == 'M') {
				return  BmpImage.getImage(url);
			}
			if (c1 == 'M' && c2 == 'M' && c3 == 0 && c4 == 42
					|| c1 == 'I' && c2 == 'I' && c3 == 42 && c4 == 0) {
				RandomAccessFileOrArray ra = null;
				try {
					if (url.getProtocol().equals("file")) {
						String file = url.getFile();
                        file = Utilities.unEscapeURL(file);
						ra = new RandomAccessFileOrArray(file);
					} else
						ra = new RandomAccessFileOrArray(url);
					Image img = TiffImage.getTiffImage(ra, 1);
					img.url = url;
					return img;
				} finally {
					if (ra != null)
						ra.close();
				}

			}
			if ( c1 == 0x97 && c2 == 'J' && c3 == 'B' && c4 == '2' &&
					c5 == '\r' && c6 == '\n' && c7 == 0x1a && c8 == '\n' ) {
				RandomAccessFileOrArray ra = null;
				try {
					if (url.getProtocol().equals("file")) {
						String file = url.getFile();
						file = Utilities.unEscapeURL(file);
			            ra = new RandomAccessFileOrArray(file);
					} else
						ra = new RandomAccessFileOrArray(url);
					Image img = JBIG2Image.getJbig2Image(ra, 1);
					img.url = url;
					return img;
				} finally {
						if (ra != null)
							ra.close();
				}
			}
			throw new IOException(url.toString()
					+ " is not a recognized imageformat.");
		} finally {
			if (is != null) {
				is.close();
			}
		}
	}

	/**
	 * Gets an instance of an Image.
	 *
	 * @param filename
	 *            a filename
	 * @return an object of type Gif,Jpeg or
	 *         Png
	 * @throws BadElementException
	 * @throws MalformedURLException
	 * @throws IOException
	 */
	public static Image getInstance(final String filename)
			throws BadElementException, MalformedURLException, IOException {
		return getInstance(Utilities.toURL(filename));
	}

	/**
	 * gets an instance of an Image
	 *
	 * @param imgb
	 *            raw image date
	 * @return an Image object
	 * @throws BadElementException
	 * @throws MalformedURLException
	 * @throws IOException
	 */
	public static Image getInstance(final byte imgb[]) throws BadElementException,
			MalformedURLException, IOException {
		InputStream is = null;
		try {
			is = new java.io.ByteArrayInputStream(imgb);
			int c1 = is.read();
			int c2 = is.read();
			int c3 = is.read();
			int c4 = is.read();
			is.close();

			is = null;
			if (c1 == 'G' && c2 == 'I' && c3 == 'F') {
				GifImage gif = new GifImage(imgb);
				return gif.getImage(1);
			}
			if (c1 == 0xFF && c2 == 0xD8) {
				return new Jpeg(imgb);
			}
			if (c1 == 0x00 && c2 == 0x00 && c3 == 0x00 && c4 == 0x0c) {
				return new Jpeg2000(imgb);
			}
			if (c1 == 0xff && c2 == 0x4f && c3 == 0xff && c4 == 0x51) {
				return new Jpeg2000(imgb);
			}
			if (c1 == PngImage.PNGID[0] && c2 == PngImage.PNGID[1]
					&& c3 == PngImage.PNGID[2] && c4 == PngImage.PNGID[3]) {
				return PngImage.getImage(imgb);
			}
			if (c1 == 0xD7 && c2 == 0xCD) {
				return new ImgWMF(imgb);
			}
			if (c1 == 'B' && c2 == 'M') {
				return BmpImage.getImage(imgb);
			}
			if (c1 == 'M' && c2 == 'M' && c3 == 0 && c4 == 42
					|| c1 == 'I' && c2 == 'I' && c3 == 42 && c4 == 0) {
				RandomAccessFileOrArray ra = null;
				try {
					ra = new RandomAccessFileOrArray(imgb);
					Image img = TiffImage.getTiffImage(ra, 1);
                    if (img.getOriginalData() == null)
                        img.setOriginalData(imgb);
					return img;
				} finally {
					if (ra != null)
						ra.close();
				}

			}
			if ( c1 == 0x97 && c2 == 'J' && c3 == 'B' && c4 == '2' ) {
				is = new java.io.ByteArrayInputStream(imgb);
				is.skip(4);
				int c5 = is.read();
				int c6 = is.read();
				int c7 = is.read();
				int c8 = is.read();
				if ( c5 == '\r' && c6 == '\n' && c7 == 0x1a && c8 == '\n' ) {
					int file_header_flags = is.read();
					// TODO number of pages never read, can be removed?
					int number_of_pages = -1;
					if ( (file_header_flags & 0x2) == 0x2 ) {
						number_of_pages = is.read() << 24 | is.read() << 16 | is.read() << 8 | is.read();
					}
					is.close();
					// a jbig2 file with a file header.  the header is the only way we know here.
					// embedded jbig2s don't have a header, have to create them by explicit use of Jbig2Image?
					// nkerr, 2008-12-05  see also the getInstance(URL)
					RandomAccessFileOrArray ra = null;
					try {
						ra = new RandomAccessFileOrArray(imgb);
						Image img = JBIG2Image.getJbig2Image(ra, 1);
						if (img.getOriginalData() == null)
							img.setOriginalData(imgb);
						return img;
					} finally {
						if (ra != null)
							ra.close();
					}
				}
			}
			throw new IOException(MessageLocalization.getComposedMessage("the.byte.array.is.not.a.recognized.imageformat"));
		} finally {
			if (is != null) {
				is.close();
			}
		}
	}

	/**
	 * Gets an instance of an Image in raw mode.
	 *
	 * @param width
	 *            the width of the image in pixels
	 * @param height
	 *            the height of the image in pixels
	 * @param components
	 *            1,3 or 4 for GrayScale, RGB and CMYK
	 * @param data
	 *            the image data
	 * @param bpc
	 *            bits per component
	 * @return an object of type ImgRaw
	 * @throws BadElementException
	 *             on error
	 */
	public static Image getInstance(final int width, final int height, final int components,
			final int bpc, final byte data[]) throws BadElementException {
		return Image.getInstance(width, height, components, bpc, data, null);
	}

	/**
	 * Creates a JBIG2 Image.
	 * @param	width	the width of the image
	 * @param	height	the height of the image
	 * @param	data	the raw image data
	 * @param	globals	JBIG2 globals
	 * @return the Image
	 * @since	2.1.5
	 */
	public static Image getInstance(final int width, final int height, final byte[] data, final byte[] globals) {
		Image img = new ImgJBIG2(width, height, data, globals);
		return img;
	}

	/**
	 * Creates an Image with CCITT G3 or G4 compression. It assumes that the
	 * data bytes are already compressed.
	 *
	 * @param width
	 *            the exact width of the image
	 * @param height
	 *            the exact height of the image
	 * @param reverseBits
	 *            reverses the bits in data. Bit 0 is swapped
	 *            with bit 7 and so on
	 * @param typeCCITT
	 *            the type of compression in data. 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
	 * @return an Image object
	 * @throws BadElementException
	 *             on error
	 */
	public static Image getInstance(final int width, final int height, final boolean reverseBits,
			final int typeCCITT, final int parameters, final byte[] data)
			throws BadElementException {
		return Image.getInstance(width, height, reverseBits, typeCCITT,
				parameters, data, null);
	}

	/**
	 * Creates an Image with CCITT G3 or G4 compression. It assumes that the
	 * data bytes are already compressed.
	 *
	 * @param width
	 *            the exact width of the image
	 * @param height
	 *            the exact height of the image
	 * @param reverseBits
	 *            reverses the bits in data. Bit 0 is swapped
	 *            with bit 7 and so on
	 * @param typeCCITT
	 *            the type of compression in data. 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
	 * @param transparency
	 *            transparency information in the Mask format of the image
	 *            dictionary
	 * @return an Image object
	 * @throws BadElementException
	 *             on error
	 */
	public static Image getInstance(final int width, final int height, final boolean reverseBits,
			final int typeCCITT, final int parameters, final byte[] data, final int transparency[])
			throws BadElementException {
		if (transparency != null && transparency.length != 2)
			throw new BadElementException(MessageLocalization.getComposedMessage("transparency.length.must.be.equal.to.2.with.ccitt.images"));
		Image img = new ImgCCITT(width, height, reverseBits, typeCCITT,
				parameters, data);
		img.transparency = transparency;
		return img;
	}

	/**
	 * Gets an instance of an Image in raw mode.
	 *
	 * @param width
	 *            the width of the image in pixels
	 * @param height
	 *            the height of the image in pixels
	 * @param components
	 *            1,3 or 4 for GrayScale, RGB and CMYK
	 * @param data
	 *            the image data
	 * @param bpc
	 *            bits per component
	 * @param transparency
	 *            transparency information in the Mask format of the image
	 *            dictionary
	 * @return an object of type ImgRaw
	 * @throws BadElementException
	 *             on error
	 */
	public static Image getInstance(final int width, final int height, final int components,
			final int bpc, final byte data[], final int transparency[])
			throws BadElementException {
		if (transparency != null && transparency.length != components * 2)
			throw new BadElementException(MessageLocalization.getComposedMessage("transparency.length.must.be.equal.to.componentes.2"));
		if (components == 1 && bpc == 1) {
			byte g4[] = CCITTG4Encoder.compress(data, width, height);
			return Image.getInstance(width, height, false, Image.CCITTG4,
					Image.CCITT_BLACKIS1, g4, transparency);
		}
		Image img = new ImgRaw(width, height, components, bpc, data);
		img.transparency = transparency;
		return img;
	}

	// images from a PdfTemplate

	/**
	 * gets an instance of an Image
	 *
	 * @param template
	 *            a PdfTemplate that has to be wrapped in an Image object
	 * @return an Image object
	 * @throws BadElementException
	 */
	public static Image getInstance(final PdfTemplate template)
			throws BadElementException {
		return new ImgTemplate(template);
	}

    // images from a java.awt.Image

	/**
	 * Gets an instance of an Image from a java.awt.Image.
	 *
	 * @param image
	 *            the java.awt.Image to convert
	 * @param color
	 *            if different from null the transparency pixels
	 *            are replaced by this color
	 * @param forceBW
	 *            if true the image is treated as black and white
	 * @return an object of type ImgRaw
	 * @throws BadElementException
	 *             on error
	 * @throws IOException
	 *             on error
	 */
	public static Image getInstance(final java.awt.Image image, final java.awt.Color color,
			boolean forceBW) throws BadElementException, IOException {

		if(image instanceof BufferedImage){
			BufferedImage bi = (BufferedImage) image;
			if(bi.getType()==BufferedImage.TYPE_BYTE_BINARY
				&& bi.getColorModel().getPixelSize() == 1) {
				forceBW=true;
			}
		}

		java.awt.image.PixelGrabber pg = new java.awt.image.PixelGrabber(image,
				0, 0, -1, -1, true);
		try {
			pg.grabPixels();
		} catch (InterruptedException e) {
			throw new IOException(MessageLocalization.getComposedMessage("java.awt.image.interrupted.waiting.for.pixels"));
		}
		if ((pg.getStatus() & java.awt.image.ImageObserver.ABORT) != 0) {
			throw new IOException(MessageLocalization.getComposedMessage("java.awt.image.fetch.aborted.or.errored"));
		}
		int w = pg.getWidth();
		int h = pg.getHeight();
		int[] pixels = (int[]) pg.getPixels();
		if (forceBW) {
			int byteWidth = w / 8 + ((w & 7) != 0 ? 1 : 0);
			byte[] pixelsByte = new byte[byteWidth * h];

			int index = 0;
			int size = h * w;
			int transColor = 1;
			if (color != null) {
				transColor = color.getRed() + color.getGreen()
						+ color.getBlue() < 384 ? 0 : 1;
			}
			int transparency[] = null;
			int cbyte = 0x80;
			int wMarker = 0;
			int currByte = 0;
			if (color != null) {
				for (int j = 0; j < size; j++) {
					int alpha = pixels[j] >> 24 & 0xff;
					if (alpha < 250) {
						if (transColor == 1)
							currByte |= cbyte;
					} else {
						if ((pixels[j] & 0x888) != 0)
							currByte |= cbyte;
					}
					cbyte >>= 1;
					if (cbyte == 0 || wMarker + 1 >= w) {
						pixelsByte[index++] = (byte) currByte;
						cbyte = 0x80;
						currByte = 0;
					}
					++wMarker;
					if (wMarker >= w)
						wMarker = 0;
				}
			} else {
				for (int j = 0; j < size; j++) {
					if (transparency == null) {
						int alpha = pixels[j] >> 24 & 0xff;
						if (alpha == 0) {
							transparency = new int[2];
							/* bugfix by M.P. Liston, ASC, was: ... ? 1: 0; */
							transparency[0] = transparency[1] = (pixels[j] & 0x888) != 0 ? 0xff : 0;
						}
					}
					if ((pixels[j] & 0x888) != 0)
						currByte |= cbyte;
					cbyte >>= 1;
					if (cbyte == 0 || wMarker + 1 >= w) {
						pixelsByte[index++] = (byte) currByte;
						cbyte = 0x80;
						currByte = 0;
					}
					++wMarker;
					if (wMarker >= w)
						wMarker = 0;
				}
			}
			return Image.getInstance(w, h, 1, 1, pixelsByte, transparency);
		} else {
			byte[] pixelsByte = new byte[w * h * 3];
			byte[] smask = null;

			int index = 0;
			int size = h * w;
			int red = 255;
			int green = 255;
			int blue = 255;
			if (color != null) {
				red = color.getRed();
				green = color.getGreen();
				blue = color.getBlue();
			}
			int transparency[] = null;
			if (color != null) {
				for (int j = 0; j < size; j++) {
					int alpha = pixels[j] >> 24 & 0xff;
					if (alpha < 250) {
						pixelsByte[index++] = (byte) red;
						pixelsByte[index++] = (byte) green;
						pixelsByte[index++] = (byte) blue;
					} else {
						pixelsByte[index++] = (byte) (pixels[j] >> 16 & 0xff);
						pixelsByte[index++] = (byte) (pixels[j] >> 8 & 0xff);
						pixelsByte[index++] = (byte) (pixels[j] & 0xff);
					}
				}
			} else {
				int transparentPixel = 0;
				smask = new byte[w * h];
				boolean shades = false;
				for (int j = 0; j < size; j++) {
					byte alpha = smask[j] = (byte) (pixels[j] >> 24 & 0xff);
					/* bugfix by Chris Nokleberg */
					if (!shades) {
						if (alpha != 0 && alpha != -1) {
							shades = true;
						} else if (transparency == null) {
							if (alpha == 0) {
								transparentPixel = pixels[j] & 0xffffff;
								transparency = new int[6];
								transparency[0] = transparency[1] = transparentPixel >> 16 & 0xff;
								transparency[2] = transparency[3] = transparentPixel >> 8 & 0xff;
								transparency[4] = transparency[5] = transparentPixel & 0xff;
							}
						} else if ((pixels[j] & 0xffffff) != transparentPixel) {
							shades = true;
						}
					}
					pixelsByte[index++] = (byte) (pixels[j] >> 16 & 0xff);
					pixelsByte[index++] = (byte) (pixels[j] >> 8 & 0xff);
					pixelsByte[index++] = (byte) (pixels[j] & 0xff);
				}
				if (shades)
					transparency = null;
				else
					smask = null;
			}
			Image img = Image.getInstance(w, h, 3, 8, pixelsByte, transparency);
			if (smask != null) {
				Image sm = Image.getInstance(w, h, 1, 8, smask);
				try {
					sm.makeMask();
					img.setImageMask(sm);
				} catch (DocumentException de) {
					throw new ExceptionConverter(de);
				}
			}
			return img;
		}
	}

	/**
	 * Gets an instance of an Image from a java.awt.Image.
	 *
	 * @param image
	 *            the java.awt.Image to convert
	 * @param color
	 *            if different from null the transparency pixels
	 *            are replaced by this color
	 * @return an object of type ImgRaw
	 * @throws BadElementException
	 *             on error
	 * @throws IOException
	 *             on error
	 */
	public static Image getInstance(final java.awt.Image image, final java.awt.Color color)
			throws BadElementException, IOException {
		return Image.getInstance(image, color, false);
	}

	/**
	 * Gets an instance of a Image from a java.awt.Image.
	 * The image is added as a JPEG with a user defined quality.
	 *
	 * @param writer
	 *            the PdfWriter object to which the image will be added
	 * @param awtImage
	 *            the java.awt.Image to convert
	 * @param quality
	 *            a float value between 0 and 1
	 * @return an object of type PdfTemplate
	 * @throws BadElementException
	 *             on error
	 * @throws IOException
	 */
	public static Image getInstance(final PdfWriter writer, final java.awt.Image awtImage, final float quality) throws BadElementException, IOException {
		return getInstance(new PdfContentByte(writer), awtImage, quality);
	}

    /**
     * Gets an instance of a Image from a java.awt.Image.
     * The image is added as a JPEG with a user defined quality.
     *
     * @param cb
     *            the PdfContentByte object to which the image will be added
     * @param awtImage
     *            the java.awt.Image to convert
     * @param quality
     *            a float value between 0 and 1
     * @return an object of type PdfTemplate
     * @throws BadElementException
     *             on error
     * @throws IOException
     */
    public static Image getInstance(final PdfContentByte cb, final java.awt.Image awtImage, final float quality) throws BadElementException, IOException {
        java.awt.image.PixelGrabber pg = new java.awt.image.PixelGrabber(awtImage,
                0, 0, -1, -1, true);
        try {
            pg.grabPixels();
        } catch (InterruptedException e) {
            throw new IOException(MessageLocalization.getComposedMessage("java.awt.image.interrupted.waiting.for.pixels"));
        }
        if ((pg.getStatus() & java.awt.image.ImageObserver.ABORT) != 0) {
            throw new IOException(MessageLocalization.getComposedMessage("java.awt.image.fetch.aborted.or.errored"));
        }
        int w = pg.getWidth();
        int h = pg.getHeight();
        PdfTemplate tp = cb.createTemplate(w, h);
        Graphics2D g2d = tp.createGraphics(w, h, true, quality);
        g2d.drawImage(awtImage, 0, 0, null);
        g2d.dispose();
        return getInstance(tp);
    }

    // image from indirect reference

    /**
     * Holds value of property directReference.
     * An image is embedded into a PDF as an Image XObject.
     * This object is referenced by a PdfIndirectReference object.
     */
    private PdfIndirectReference directReference;

    /**
     * Getter for property directReference.
     * @return Value of property directReference.
     */
    public PdfIndirectReference getDirectReference() {
        return this.directReference;
    }

    /**
     * Setter for property directReference.
     * @param directReference New value of property directReference.
     */
    public void setDirectReference(final PdfIndirectReference directReference) {
        this.directReference = directReference;
    }

    /**
     * Reuses an existing image.
     * @param ref the reference to the image dictionary
     * @throws BadElementException on error
     * @return the image
     */
    public static Image getInstance(final PRIndirectReference ref) throws BadElementException {
        PdfDictionary dic = (PdfDictionary)PdfReader.getPdfObjectRelease(ref);
        int width = ((PdfNumber)PdfReader.getPdfObjectRelease(dic.get(PdfName.WIDTH))).intValue();
        int height = ((PdfNumber)PdfReader.getPdfObjectRelease(dic.get(PdfName.HEIGHT))).intValue();
        Image imask = null;
        PdfObject obj = dic.get(PdfName.SMASK);
        if (obj != null && obj.isIndirect()) {
            imask = getInstance((PRIndirectReference)obj);
        }
        else {
            obj = dic.get(PdfName.MASK);
            if (obj != null && obj.isIndirect()) {
                PdfObject obj2 = PdfReader.getPdfObjectRelease(obj);
                if (obj2 instanceof PdfDictionary)
                    imask = getInstance((PRIndirectReference)obj);
            }
        }
        Image img = new ImgRaw(width, height, 1, 1, null);
        img.imageMask = imask;
        img.directReference = ref;
        return img;
    }

    // copy constructor

	/**
	 * Constructs an Image -object, using an url .
	 *
	 * @param image
	 *            another Image object.
	 */
	protected Image(final Image image) {
		super(image);
		this.type = image.type;
		this.url = image.url;
		this.rawData = image.rawData;
		this.bpc = image.bpc;
		this.template = image.template;
		this.alignment = image.alignment;
		this.alt = image.alt;
		this.absoluteX = image.absoluteX;
		this.absoluteY = image.absoluteY;
		this.plainWidth = image.plainWidth;
		this.plainHeight = image.plainHeight;
		this.scaledWidth = image.scaledWidth;
		this.scaledHeight = image.scaledHeight;
		this.mySerialId = image.mySerialId;

        this.directReference = image.directReference;

		this.rotationRadians = image.rotationRadians;
        this.initialRotation = image.initialRotation;
        this.indentationLeft = image.indentationLeft;
        this.indentationRight = image.indentationRight;
		this.spacingBefore = image.spacingBefore;
		this.spacingAfter = image.spacingAfter;

		this.widthPercentage = image.widthPercentage;
		this.scaleToFitLineWhenOverflow = image.scaleToFitLineWhenOverflow;
		this.annotation = image.annotation;
		this.layer = image.layer;
		this.interpolation = image.interpolation;
		this.originalType = image.originalType;
		this.originalData = image.originalData;
		this.deflated = image.deflated;
		this.dpiX = image.dpiX;
		this.dpiY = image.dpiY;
		this.XYRatio = image.XYRatio;

		this.colorspace = image.colorspace;
		this.invert = image.invert;
		this.profile = image.profile;
		this.additional = image.additional;
		this.mask = image.mask;
		this.imageMask = image.imageMask;
		this.smask = image.smask;
		this.transparency = image.transparency;
	}

	/**
	 * gets an instance of an Image
	 *
	 * @param image
	 *            an Image object
	 * @return a new Image object
	 */
	public static Image getInstance(final Image image) {
		if (image == null)
			return null;
		try {
			Class cs = image.getClass();
			Constructor constructor = cs
					.getDeclaredConstructor(new Class[] { Image.class });
			return constructor.newInstance(new Object[] { image });
		} catch (Exception e) {
			throw new ExceptionConverter(e);
		}
	}

	// implementation of the Element interface

	/**
	 * Returns the type.
	 *
	 * @return a type
	 */

	@Override
    public int type() {
		return type;
	}

	/**
	 * @see com.itextpdf.text.Element#isNestable()
	 * @since	iText 2.0.8
	 */
	@Override
    public boolean isNestable() {
		return true;
	}

	// checking the type of Image

	/**
	 * Returns true if the image is a Jpeg
	 * -object.
	 *
	 * @return a boolean
	 */

	public boolean isJpeg() {
		return type == JPEG;
	}

	/**
	 * Returns true if the image is a ImgRaw
	 * -object.
	 *
	 * @return a boolean
	 */

	public boolean isImgRaw() {
		return type == IMGRAW;
	}

	/**
	 * Returns true if the image is an ImgTemplate
	 * -object.
	 *
	 * @return a boolean
	 */

	public boolean isImgTemplate() {
		return type == IMGTEMPLATE;
	}

	// getters and setters

	/**
	 * Gets the String -representation of the reference to the
	 * image.
	 *
	 * @return a String
	 */

	public URL getUrl() {
		return url;
	}

	/**
	 * Sets the url of the image
	 *
	 * @param url
	 *            the url of the image
	 */
	public void setUrl(final URL url) {
		this.url = url;
	}

	/**
	 * Gets the raw data for the image.
	 * 

* Remark: this only makes sense for Images of the type RawImage * . * * @return the raw data */ public byte[] getRawData() { return rawData; } /** * Gets the bpc for the image. *

* Remark: this only makes sense for Images of the type RawImage * . * * @return a bpc value */ public int getBpc() { return bpc; } /** * Gets the template to be used as an image. *

* Remark: this only makes sense for Images of the type ImgTemplate * . * * @return the template */ public PdfTemplate getTemplateData() { return template[0]; } /** * Sets data from a PdfTemplate * * @param template * the template with the content */ public void setTemplateData(final PdfTemplate template) { this.template[0] = template; } /** * Gets the alignment for the image. * * @return a value */ public int getAlignment() { return alignment; } /** * Sets the alignment for the image. * * @param alignment * the alignment */ public void setAlignment(final int alignment) { this.alignment = alignment; } /** * Gets the alternative text for the image. * * @return a String */ public String getAlt() { return alt; } /** * Sets the alternative information for the image. * * @param alt * the alternative information */ public void setAlt(final String alt) { this.alt = alt; } /** * Sets the absolute position of the Image. * * @param absoluteX * @param absoluteY */ public void setAbsolutePosition(final float absoluteX, final float absoluteY) { this.absoluteX = absoluteX; this.absoluteY = absoluteY; } /** * Checks if the Images has to be added at an absolute X * position. * * @return a boolean */ public boolean hasAbsoluteX() { return !Float.isNaN(absoluteX); } /** * Returns the absolute X position. * * @return a position */ public float getAbsoluteX() { return absoluteX; } /** * Checks if the Images has to be added at an absolute * position. * * @return a boolean */ public boolean hasAbsoluteY() { return !Float.isNaN(absoluteY); } /** * Returns the absolute Y position. * * @return a position */ public float getAbsoluteY() { return absoluteY; } // width and height /** * Gets the scaled width of the image. * * @return a value */ public float getScaledWidth() { return scaledWidth; } /** * Gets the scaled height of the image. * * @return a value */ public float getScaledHeight() { return scaledHeight; } /** * Gets the plain width of the image. * * @return a value */ public float getPlainWidth() { return plainWidth; } /** * Gets the plain height of the image. * * @return a value */ public float getPlainHeight() { return plainHeight; } /** * Scale the image to an absolute width and an absolute height. * * @param newWidth * the new width * @param newHeight * the new height */ public void scaleAbsolute(final float newWidth, final float newHeight) { plainWidth = newWidth; plainHeight = newHeight; float[] matrix = matrix(); scaledWidth = matrix[DX] - matrix[CX]; scaledHeight = matrix[DY] - matrix[CY]; setWidthPercentage(0); } /** * Scale the image to an absolute width. * * @param newWidth * the new width */ public void scaleAbsoluteWidth(final float newWidth) { plainWidth = newWidth; float[] matrix = matrix(); scaledWidth = matrix[DX] - matrix[CX]; scaledHeight = matrix[DY] - matrix[CY]; setWidthPercentage(0); } /** * Scale the image to an absolute height. * * @param newHeight * the new height */ public void scaleAbsoluteHeight(final float newHeight) { plainHeight = newHeight; float[] matrix = matrix(); scaledWidth = matrix[DX] - matrix[CX]; scaledHeight = matrix[DY] - matrix[CY]; setWidthPercentage(0); } /** * Scale the image to a certain percentage. * * @param percent * the scaling percentage */ public void scalePercent(final float percent) { scalePercent(percent, percent); } /** * Scale the width and height of an image to a certain percentage. * * @param percentX * the scaling percentage of the width * @param percentY * the scaling percentage of the height */ public void scalePercent(final float percentX, final float percentY) { plainWidth = getWidth() * percentX / 100f; plainHeight = getHeight() * percentY / 100f; float[] matrix = matrix(); scaledWidth = matrix[DX] - matrix[CX]; scaledHeight = matrix[DY] - matrix[CY]; setWidthPercentage(0); } /** * Scales the image so that it fits a certain width and height. * * @param fitWidth * the width to fit * @param fitHeight * the height to fit */ public void scaleToFit(final float fitWidth, final float fitHeight) { scalePercent(100); float percentX = fitWidth * 100 / getScaledWidth(); float percentY = fitHeight * 100 / getScaledHeight(); scalePercent(percentX < percentY ? percentX : percentY); setWidthPercentage(0); } /** * Returns the transformation matrix of the image. * * @return an array [AX, AY, BX, BY, CX, CY, DX, DY] */ public float[] matrix() { float[] matrix = new float[8]; float cosX = (float) Math.cos(rotationRadians); float sinX = (float) Math.sin(rotationRadians); matrix[AX] = plainWidth * cosX; matrix[AY] = plainWidth * sinX; matrix[BX] = -plainHeight * sinX; matrix[BY] = plainHeight * cosX; if (rotationRadians < Math.PI / 2f) { matrix[CX] = matrix[BX]; matrix[CY] = 0; matrix[DX] = matrix[AX]; matrix[DY] = matrix[AY] + matrix[BY]; } else if (rotationRadians < Math.PI) { matrix[CX] = matrix[AX] + matrix[BX]; matrix[CY] = matrix[BY]; matrix[DX] = 0; matrix[DY] = matrix[AY]; } else if (rotationRadians < Math.PI * 1.5f) { matrix[CX] = matrix[AX]; matrix[CY] = matrix[AY] + matrix[BY]; matrix[DX] = matrix[BX]; matrix[DY] = 0; } else { matrix[CX] = 0; matrix[CY] = matrix[AY]; matrix[DX] = matrix[AX] + matrix[BX]; matrix[DY] = matrix[BY]; } return matrix; } // serial stamping /** a static that is used for attributing a unique id to each image. */ static long serialId = 0; /** Creates a new serial id. * @return the new serialId */ static protected synchronized Long getSerialId() { ++serialId; return Long.valueOf(serialId); } /** * Returns a serial id for the Image (reuse the same image more than once) * * @return a serialId */ public Long getMySerialId() { return mySerialId; } // rotation, note that the superclass also has a rotation value. /** This is the rotation of the image in radians. */ protected float rotationRadians; /** Holds value of property initialRotation. */ private float initialRotation; /** * Gets the current image rotation in radians. * @return the current image rotation in radians */ public float getImageRotation() { double d = 2.0 * Math.PI; float rot = (float) ((rotationRadians - initialRotation) % d); if (rot < 0) { rot += d; } return rot; } /** * Sets the rotation of the image in radians. * * @param r * rotation in radians */ public void setRotation(final float r) { double d = 2.0 * Math.PI; rotationRadians = (float) ((r + initialRotation) % d); if (rotationRadians < 0) { rotationRadians += d; } float[] matrix = matrix(); scaledWidth = matrix[DX] - matrix[CX]; scaledHeight = matrix[DY] - matrix[CY]; } /** * Sets the rotation of the image in degrees. * * @param deg * rotation in degrees */ public void setRotationDegrees(final float deg) { double d = Math.PI; setRotation(deg / 180 * (float) d); } /** * Getter for property initialRotation. * @return Value of property initialRotation. */ public float getInitialRotation() { return this.initialRotation; } /** * Some image formats, like TIFF may present the images rotated that have * to be compensated. * @param initialRotation New value of property initialRotation. */ public void setInitialRotation(final float initialRotation) { float old_rot = rotationRadians - this.initialRotation; this.initialRotation = initialRotation; setRotation(old_rot); } // indentations /** the indentation to the left. */ protected float indentationLeft = 0; /** the indentation to the right. */ protected float indentationRight = 0; /** The spacing before the image. */ protected float spacingBefore; /** The spacing after the image. */ protected float spacingAfter; /** * Gets the left indentation. * * @return the left indentation */ public float getIndentationLeft() { return indentationLeft; } /** * Sets the left indentation. * * @param f */ public void setIndentationLeft(final float f) { indentationLeft = f; } /** * Gets the right indentation. * * @return the right indentation */ public float getIndentationRight() { return indentationRight; } /** * Sets the right indentation. * * @param f */ public void setIndentationRight(final float f) { indentationRight = f; } /** * Gets the spacing before this image. * * @return the spacing */ public float getSpacingBefore() { return spacingBefore; } /** * Sets the spacing before this image. * * @param spacing * the new spacing */ public void setSpacingBefore(final float spacing) { this.spacingBefore = spacing; } /** * Gets the spacing before this image. * * @return the spacing */ public float getSpacingAfter() { return spacingAfter; } /** * Sets the spacing after this image. * * @param spacing * the new spacing */ public void setSpacingAfter(final float spacing) { this.spacingAfter = spacing; } // widthpercentage (for the moment only used in ColumnText) /** * Holds value of property widthPercentage. */ private float widthPercentage = 100; /** * Getter for property widthPercentage. * * @return Value of property widthPercentage. */ public float getWidthPercentage() { return this.widthPercentage; } /** * Setter for property widthPercentage. * * @param widthPercentage * New value of property widthPercentage. */ public void setWidthPercentage(final float widthPercentage) { this.widthPercentage = widthPercentage; } // scaling the image to the available width (or not) /** * Indicates if the image should be scaled to fit the line * when the image exceeds the available width. * @since iText 5.0.6 */ protected boolean scaleToFitLineWhenOverflow; /** * Gets the value of scaleToFitLineWhenOverflow. * @return true if the image size has to scale to the available width * @since iText 5.0.6 */ public boolean isScaleToFitLineWhenOverflow() { return scaleToFitLineWhenOverflow; } /** * Sets the value of scaleToFitLineWhenOverflow * @param scaleToFitLineWhenOverflow true if you want the image to scale to the available width * @since iText 5.0.6 */ public void setScaleToFitLineWhenOverflow(final boolean scaleToFitLineWhenOverflow) { this.scaleToFitLineWhenOverflow = scaleToFitLineWhenOverflow; } // annotation /** if the annotation is not null the image will be clickable. */ protected Annotation annotation = null; /** * Sets the annotation of this Image. * * @param annotation * the annotation */ public void setAnnotation(final Annotation annotation) { this.annotation = annotation; } /** * Gets the annotation. * * @return the annotation that is linked to this image */ public Annotation getAnnotation() { return annotation; } // Optional Content /** Optional Content layer to which we want this Image to belong. */ protected PdfOCG layer; /** * Gets the layer this image belongs to. * * @return the layer this image belongs to or null for no * layer defined */ public PdfOCG getLayer() { return layer; } /** * Sets the layer this image belongs to. * * @param layer * the layer this image belongs to */ public void setLayer(final PdfOCG layer) { this.layer = layer; } // interpolation /** Holds value of property interpolation. */ protected boolean interpolation; /** * Getter for property interpolation. * * @return Value of property interpolation. */ public boolean isInterpolation() { return interpolation; } /** * Sets the image interpolation. Image interpolation attempts to produce a * smooth transition between adjacent sample values. * * @param interpolation * New value of property interpolation. */ public void setInterpolation(final boolean interpolation) { this.interpolation = interpolation; } // original type and data /** Holds value of property originalType. */ protected int originalType = ORIGINAL_NONE; /** Holds value of property originalData. */ protected byte[] originalData; /** * Getter for property originalType. * * @return Value of property originalType. * */ public int getOriginalType() { return this.originalType; } /** * Setter for property originalType. * * @param originalType * New value of property originalType. * */ public void setOriginalType(final int originalType) { this.originalType = originalType; } /** * Getter for property originalData. * * @return Value of property originalData. * */ public byte[] getOriginalData() { return this.originalData; } /** * Setter for property originalData. * * @param originalData * New value of property originalData. * */ public void setOriginalData(final byte[] originalData) { this.originalData = originalData; } // the following values are only set for specific types of images. /** Holds value of property deflated. */ protected boolean deflated = false; /** * Getter for property deflated. * * @return Value of property deflated. * */ public boolean isDeflated() { return this.deflated; } /** * Setter for property deflated. * * @param deflated * New value of property deflated. */ public void setDeflated(final boolean deflated) { this.deflated = deflated; } // DPI info /** Holds value of property dpiX. */ protected int dpiX = 0; /** Holds value of property dpiY. */ protected int dpiY = 0; /** * Gets the dots-per-inch in the X direction. Returns 0 if not available. * * @return the dots-per-inch in the X direction */ public int getDpiX() { return dpiX; } /** * Gets the dots-per-inch in the Y direction. Returns 0 if not available. * * @return the dots-per-inch in the Y direction */ public int getDpiY() { return dpiY; } /** * Sets the dots per inch value * * @param dpiX * dpi for x coordinates * @param dpiY * dpi for y coordinates */ public void setDpi(final int dpiX, final int dpiY) { this.dpiX = dpiX; this.dpiY = dpiY; } // XY Ratio /** Holds value of property XYRatio. */ private float XYRatio = 0; /** * Gets the X/Y pixel dimensionless aspect ratio. * * @return the X/Y pixel dimensionless aspect ratio */ public float getXYRatio() { return this.XYRatio; } /** * Sets the X/Y pixel dimensionless aspect ratio. * * @param XYRatio * the X/Y pixel dimensionless aspect ratio */ public void setXYRatio(final float XYRatio) { this.XYRatio = XYRatio; } // color, colorspaces and transparency /** this is the colorspace of a jpeg-image. */ protected int colorspace = -1; /** * Gets the colorspace for the image. *

* Remark: this only makes sense for Images of the type Jpeg. * * @return a colorspace value */ public int getColorspace() { return colorspace; } /** Image color inversion */ protected boolean invert = false; /** * Getter for the inverted value * * @return true if the image is inverted */ public boolean isInverted() { return invert; } /** * Sets inverted true or false * * @param invert * true or false */ public void setInverted(final boolean invert) { this.invert = invert; } /** ICC Profile attached */ protected ICC_Profile profile = null; /** * Tags this image with an ICC profile. * * @param profile * the profile */ public void tagICC(final ICC_Profile profile) { this.profile = profile; } /** * Checks is the image has an ICC profile. * * @return the ICC profile or null */ public boolean hasICCProfile() { return this.profile != null; } /** * Gets the images ICC profile. * * @return the ICC profile */ public ICC_Profile getICCProfile() { return profile; } /** a dictionary with additional information */ private PdfDictionary additional = null; /** * Getter for the dictionary with additional information. * * @return a PdfDictionary with additional information. */ public PdfDictionary getAdditional() { return this.additional; } /** * Sets the /Colorspace key. * * @param additional * a PdfDictionary with additional information. */ public void setAdditional(final PdfDictionary additional) { this.additional = additional; } /** * Replaces CalRGB and CalGray colorspaces with DeviceRGB and DeviceGray. */ public void simplifyColorspace() { if (additional == null) return; PdfArray value = additional.getAsArray(PdfName.COLORSPACE); if (value == null) return; PdfObject cs = simplifyColorspace(value); PdfObject newValue; if (cs.isName()) newValue = cs; else { newValue = value; PdfName first = value.getAsName(0); if (PdfName.INDEXED.equals(first)) { if (value.size() >= 2) { PdfArray second = value.getAsArray(1); if (second != null) { value.set(1, simplifyColorspace(second)); } } } } additional.put(PdfName.COLORSPACE, newValue); } /** * Gets a PDF Name from an array or returns the object that was passed. */ private PdfObject simplifyColorspace(final PdfArray obj) { if (obj == null) return obj; PdfName first = obj.getAsName(0); if (PdfName.CALGRAY.equals(first)) return PdfName.DEVICEGRAY; else if (PdfName.CALRGB.equals(first)) return PdfName.DEVICERGB; else return obj; } /** Is this image a mask? */ protected boolean mask = false; /** The image that serves as a mask for this image. */ protected Image imageMask; /** Holds value of property smask. */ private boolean smask; /** * Returns true if this Image is a mask. * * @return true if this Image is a mask */ public boolean isMask() { return mask; } /** * Make this Image a mask. * * @throws DocumentException * if this Image can not be a mask */ public void makeMask() throws DocumentException { if (!isMaskCandidate()) throw new DocumentException(MessageLocalization.getComposedMessage("this.image.can.not.be.an.image.mask")); mask = true; } /** * Returns true if this Image has the * requisites to be a mask. * * @return true if this Image can be a mask */ public boolean isMaskCandidate() { if (type == IMGRAW) { if (bpc > 0xff) return true; } return colorspace == 1; } /** * Gets the explicit masking. * * @return the explicit masking */ public Image getImageMask() { return imageMask; } /** * Sets the explicit masking. * * @param mask * the mask to be applied * @throws DocumentException * on error */ public void setImageMask(final Image mask) throws DocumentException { if (this.mask) throw new DocumentException(MessageLocalization.getComposedMessage("an.image.mask.cannot.contain.another.image.mask")); if (!mask.mask) throw new DocumentException(MessageLocalization.getComposedMessage("the.image.mask.is.not.a.mask.did.you.do.makemask")); imageMask = mask; smask = mask.bpc > 1 && mask.bpc <= 8; } /** * Getter for property smask. * * @return Value of property smask. * */ public boolean isSmask() { return this.smask; } /** * Setter for property smask. * * @param smask * New value of property smask. */ public void setSmask(final boolean smask) { this.smask = smask; } /** this is the transparency information of the raw image */ protected int transparency[]; /** * Returns the transparency. * * @return the transparency values */ public int[] getTransparency() { return transparency; } /** * Sets the transparency values * * @param transparency * the transparency values */ public void setTransparency(final int transparency[]) { this.transparency = transparency; } /** * Returns the compression level used for images written as a compressed stream. * @return the compression level (0 = best speed, 9 = best compression, -1 is default) * @since 2.1.3 */ public int getCompressionLevel() { return compressionLevel; } /** * Sets the compression level to be used if the image is written as a compressed stream. * @param compressionLevel a value between 0 (best speed) and 9 (best compression) * @since 2.1.3 */ public void setCompressionLevel(final int compressionLevel) { if (compressionLevel < PdfStream.NO_COMPRESSION || compressionLevel > PdfStream.BEST_COMPRESSION) this.compressionLevel = PdfStream.DEFAULT_COMPRESSION; else this.compressionLevel = compressionLevel; } }





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