Initial import of release 2.2.REL-2.2@923

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

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diff --git a/src/main/java/com/lowagie/text/Element.java b/src/main/java/com/lowagie/text/Element.java
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+/*

+ * $Id: Element.java,v 1.66 2005/05/04 14:41:15 blowagie Exp $

+ * $Name:  $

+ *

+ * Copyright 1999, 2000, 2001, 2002 by Bruno Lowagie.

+ *

+ * The contents of this file are subject to the Mozilla Public License Version 1.1

+ * (the "License"); you may not use this file except in compliance with the License.

+ * You may obtain a copy of the License at http://www.mozilla.org/MPL/

+ *

+ * Software distributed under the License is distributed on an "AS IS" basis,

+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License

+ * for the specific language governing rights and limitations under the License.

+ *

+ * The Original Code is 'iText, a free JAVA-PDF library'.

+ *

+ * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by

+ * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.

+ * All Rights Reserved.

+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer

+ * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.

+ *

+ * Contributor(s): all the names of the contributors are added in the source code

+ * where applicable.

+ *

+ * Alternatively, the contents of this file may be used under the terms of the

+ * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the

+ * provisions of LGPL are applicable instead of those above.  If you wish to

+ * allow use of your version of this file only under the terms of the LGPL

+ * License and not to allow others to use your version of this file under

+ * the MPL, indicate your decision by deleting the provisions above and

+ * replace them with the notice and other provisions required by the LGPL.

+ * If you do not delete the provisions above, a recipient may use your version

+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.

+ *

+ * This library is free software; you can redistribute it and/or modify it

+ * under the terms of the MPL as stated above or under the terms of the GNU

+ * Library General Public License as published by the Free Software Foundation;

+ * either version 2 of the License, or any later version.

+ *

+ * This library 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 Library general Public License for more

+ * details.

+ *

+ * If you didn't download this code from the following link, you should check if

+ * you aren't using an obsolete version:

+ * http://www.lowagie.com/iText/

+ */

+

+package com.lowagie.text;

+

+import java.util.ArrayList;

+

+/**

+ * Interface for a text element.

+ * <P>

+ * Remark: I looked at the interface javax.swing.text.Element, but I decided to

+ * write my own text-classes for two reasons:

+ * <OL>

+ * <LI>The javax.swing.text-classes may be very generic, I think they are

+ * overkill: they are to heavy for what they have to do.

+ * <LI>A lot of people using iText (formerly known as rugPdf), still use

+ * JDK1.1.x. I try to keep the Java2 requirements limited to the Collection

+ * classes (I think they're really great). However, if I use the

+ * javax.swing.text classes, it will become very difficult to downgrade rugPdf.

+ * </OL>

+ * 

+ * @see Anchor

+ * @see Cell

+ * @see Chapter

+ * @see Chunk

+ * @see Graphic

+ * @see Header

+ * @see Image

+ * @see Jpeg

+ * @see List

+ * @see ListItem

+ * @see Meta

+ * @see Paragraph

+ * @see Phrase

+ * @see Rectangle

+ * @see Row

+ * @see Section

+ * @see Table

+ */

+

+public interface Element {

+

+	// static membervariables (meta information)

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int HEADER = 0;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int TITLE = 1;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int SUBJECT = 2;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int KEYWORDS = 3;

+

+	/** This is a possible type of <CODE>Element </CIDE>. */

+	public static final int AUTHOR = 4;

+

+	/** This is a possible type of <CODE>Element </CIDE>. */

+	public static final int PRODUCER = 5;

+

+	/** This is a possible type of <CODE>Element </CIDE>. */

+	public static final int CREATIONDATE = 6;

+

+	/** This is a possible type of <CODE>Element </CIDE>. */

+	public static final int CREATOR = 7;

+

+	// static membervariables (content)

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int CHUNK = 10;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int PHRASE = 11;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int PARAGRAPH = 12;

+

+	/** This is a possible type of <CODE>Element</CODE> */

+	public static final int SECTION = 13;

+

+	/** This is a possible type of <CODE>Element</CODE> */

+	public static final int LIST = 14;

+

+	/** This is a possible type of <CODE>Element</CODE> */

+	public static final int LISTITEM = 15;

+

+	/** This is a possible type of <CODE>Element</CODE> */

+	public static final int CHAPTER = 16;

+

+	/** This is a possible type of <CODE>Element</CODE> */

+	public static final int ANCHOR = 17;

+

+	// static membervariables (tables)

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int CELL = 20;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int ROW = 21;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int TABLE = 22;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int PTABLE = 23;

+

+	// static membervariables (annotations)

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int ANNOTATION = 29;

+

+	// static membervariables (geometric figures)

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int RECTANGLE = 30;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int JPEG = 32;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int IMGRAW = 34;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int IMGTEMPLATE = 35;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int GRAPHIC = 39;

+

+	/** This is a possible type of <CODE>Element</CODE>. */

+	public static final int MULTI_COLUMN_TEXT = 40;

+

+	// static membervariables (alignment)

+

+	/**

+	 * A possible value for paragraph alignment. This specifies that the text is

+	 * aligned to the left indent and extra whitespace should be placed on the

+	 * right.

+	 */

+	public static final int ALIGN_UNDEFINED = -1;

+

+	/**

+	 * A possible value for paragraph alignment. This specifies that the text is

+	 * aligned to the left indent and extra whitespace should be placed on the

+	 * right.

+	 */

+	public static final int ALIGN_LEFT = 0;

+

+	/**

+	 * A possible value for paragraph alignment. This specifies that the text is

+	 * aligned to the center and extra whitespace should be placed equally on

+	 * the left and right.

+	 */

+	public static final int ALIGN_CENTER = 1;

+

+	/**

+	 * A possible value for paragraph alignment. This specifies that the text is

+	 * aligned to the right indent and extra whitespace should be placed on the

+	 * left.

+	 */

+	public static final int ALIGN_RIGHT = 2;

+

+	/**

+	 * A possible value for paragraph alignment. This specifies that extra

+	 * whitespace should be spread out through the rows of the paragraph with

+	 * the text lined up with the left and right indent except on the last line

+	 * which should be aligned to the left.

+	 */

+	public static final int ALIGN_JUSTIFIED = 3;

+

+	/**

+	 * A possible value for vertical alignment.

+	 */

+

+	public static final int ALIGN_TOP = 4;

+

+	/**

+	 * A possible value for vertical alignment.

+	 */

+

+	public static final int ALIGN_MIDDLE = 5;

+

+	/**

+	 * A possible value for vertical alignment.

+	 */

+

+	public static final int ALIGN_BOTTOM = 6;

+

+	/**

+	 * A possible value for vertical alignment.

+	 */

+	public static final int ALIGN_BASELINE = 7;

+

+	/**

+	 * Does the same as ALIGN_JUSTIFIED but the last line is also spread out.

+	 */

+	public static final int ALIGN_JUSTIFIED_ALL = 8;

+

+	// static member variables for CCITT compression

+

+	/**

+	 * Pure two-dimensional encoding (Group 4)

+	 */

+	public static final int CCITTG4 = 0x100;

+

+	/**

+	 * Pure one-dimensional encoding (Group 3, 1-D)

+	 */

+	public static final int CCITTG3_1D = 0x101;

+

+	/**

+	 * Mixed one- and two-dimensional encoding (Group 3, 2-D)

+	 */

+	public static final int CCITTG3_2D = 0x102;

+

+	/**

+	 * A flag indicating whether 1-bits are to be interpreted as black pixels

+	 * and 0-bits as white pixels,

+	 */

+	public static final int CCITT_BLACKIS1 = 1;

+

+	/**

+	 * A flag indicating whether the filter expects extra 0-bits before each

+	 * encoded line so that the line begins on a byte boundary.

+	 */

+	public static final int CCITT_ENCODEDBYTEALIGN = 2;

+

+	/**

+	 * A flag indicating whether end-of-line bit patterns are required to be

+	 * present in the encoding.

+	 */

+	public static final int CCITT_ENDOFLINE = 4;

+

+	/**

+	 * A flag indicating whether the filter expects the encoded data to be

+	 * terminated by an end-of-block pattern, overriding the Rows parameter. The

+	 * use of this flag will set the key /EndOfBlock to false.

+	 */

+	public static final int CCITT_ENDOFBLOCK = 8;

+

+	// methods

+

+	/**

+	 * Processes the element by adding it (or the different parts) to an <CODE>

+	 * ElementListener</CODE>.

+	 * 

+	 * @param listener

+	 *            an <CODE>ElementListener</CODE>

+	 * @return <CODE>true</CODE> if the element was processed successfully

+	 */

+

+	public boolean process(ElementListener listener);

+

+	/**

+	 * Gets the type of the text element.

+	 * 

+	 * @return a type

+	 */

+

+	public int type();

+

+	/**

+	 * Gets all the chunks in this element.

+	 * 

+	 * @return an <CODE>ArrayList</CODE>

+	 */

+

+	public ArrayList getChunks();

+

+	/**

+	 * Gets the content of the text element.

+	 * 

+	 * @return a type

+	 */

+

+	public String toString();

+}
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