/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2022 iText Group NV
 * Authors: Balder Van Camp, Emiel Ackermann, 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
 * ITEXT GROUP. ITEXT GROUP 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
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 * address: sales@itextpdf.com
 */
package com.itextpdf.tool.xml.html.pdfelement;

import com.itextpdf.text.Chunk;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.Image;
import com.itextpdf.text.List;
import com.itextpdf.text.ListItem;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.api.Indentable;

/**
 * A <CODE>NoNewLineParagraph</CODE> is a series of <CODE>Chunk</CODE>s and/or <CODE>Phrases</CODE>.
 * <P>
 * A <CODE>NoNewLineParagraph</CODE> has the same qualities of a <CODE>Phrase</CODE>, but also
 * some additional layout-parameters:
 * <UL>
 * <LI>the indentation
 * <LI>the alignment of the text
 * </UL>
 *
 * Example:
 * <BLOCKQUOTE><PRE>
 * <STRONG>NoNewLineParagraph p = new NoNewLineParagraph("This is a paragraph",
 *               FontFactory.getFont(FontFactory.HELVETICA, 18, Font.BOLDITALIC, new Color(0, 0, 255)));</STRONG>
 * </PRE></BLOCKQUOTE>
 *
 * @see		Element
 * @see		Phrase
 * @see		ListItem
 */

public class NoNewLineParagraph extends Phrase implements Indentable {

	 /**
	 *
	 */
	private static final long serialVersionUID = -8392940968188620772L;

    // membervariables

	/** The alignment of the text. */
    protected int alignment = Element.ALIGN_UNDEFINED;

    /** The indentation of this paragraph on the left side. */
    protected float indentationLeft;

    /** The indentation of this paragraph on the right side. */
    protected float indentationRight;

    /** Holds value of property firstLineIndent. */
    private float firstLineIndent = 0;

    /** The spacing before the paragraph. */
    protected float spacingBefore;

    /** The spacing after the paragraph. */
    protected float spacingAfter;

    /** Holds value of property extraParagraphSpace. */
    private float extraParagraphSpace = 0;

    /** Does the paragraph has to be kept together on 1 page. */
    protected boolean keeptogether = false;

	/**
     * Constructs a <CODE>Paragraph</CODE>.
     */
    public NoNewLineParagraph() {
        super();
    }

    /**
     * Constructs a <CODE>Paragraph</CODE> with a certain leading.
     *
     * @param	leading		the leading
     */
    public NoNewLineParagraph(final float leading) {
        super(leading);
    }

    /**
     * Constructs a <CODE>Paragraph</CODE> with a certain <CODE>Chunk</CODE>.
     *
     * @param	chunk		a <CODE>Chunk</CODE>
     */
    public NoNewLineParagraph(final Chunk chunk) {
        super(chunk);
    }

    /**
     * Constructs a <CODE>Paragraph</CODE> with a certain <CODE>Chunk</CODE>
     * and a certain leading.
     *
     * @param	leading		the leading
     * @param	chunk		a <CODE>Chunk</CODE>
     */
    public NoNewLineParagraph(final float leading, final Chunk chunk) {
        super(leading, chunk);
    }

    /**
     * Constructs a <CODE>Paragraph</CODE> with a certain <CODE>String</CODE>.
     *
     * @param	string		a <CODE>String</CODE>
     */
    public NoNewLineParagraph(final String string) {
        super(string);
    }

    /**
     * Constructs a <CODE>Paragraph</CODE> with a certain <CODE>String</CODE>
     * and a certain <CODE>Font</CODE>.
     *
     * @param	string		a <CODE>String</CODE>
     * @param	font		a <CODE>Font</CODE>
     */
    public NoNewLineParagraph(final String string, final Font font) {
        super(string, font);
    }

    /**
     * Constructs a <CODE>Paragraph</CODE> with a certain <CODE>String</CODE>
     * and a certain leading.
     *
     * @param	leading		the leading
     * @param	string		a <CODE>String</CODE>
     */
    public NoNewLineParagraph(final float leading, final String string) {
        super(leading, string);
    }

    /**
     * Constructs a <CODE>Paragraph</CODE> with a certain leading, <CODE>String</CODE>
     * and <CODE>Font</CODE>.
     *
     * @param	leading		the leading
     * @param	string		a <CODE>String</CODE>
     * @param	font		a <CODE>Font</CODE>
     */
    public NoNewLineParagraph(final float leading, final String string, final Font font) {
        super(leading, string, font);
    }

    /**
     * Constructs a <CODE>Paragraph</CODE> with a certain <CODE>Phrase</CODE>.
     *
     * @param	phrase		a <CODE>Phrase</CODE>
     */
    public NoNewLineParagraph(final Phrase phrase) {
        super(phrase);
        if (phrase instanceof NoNewLineParagraph) {
        	NoNewLineParagraph p = (NoNewLineParagraph)phrase;
        	alignment = p.getAlignment();
        	indentationLeft = p.getIndentationLeft();
        	indentationRight = p.getIndentationRight();
        	firstLineIndent = p.getFirstLineIndent();
        	spacingAfter = p.getSpacingAfter();
        	spacingBefore = p.getSpacingBefore();
        	extraParagraphSpace = p.getExtraParagraphSpace();
        }
        if (phrase instanceof Paragraph) {
        	Paragraph p = (Paragraph)phrase;
        	setAlignment(p.getAlignment());
        	setIndentationLeft(p.getIndentationLeft());
        	setIndentationRight(p.getIndentationRight());
        	setFirstLineIndent(p.getFirstLineIndent());
        	setSpacingAfter(p.getSpacingAfter());
        	setSpacingBefore(p.getSpacingBefore());
        	setExtraParagraphSpace(p.getExtraParagraphSpace());
        }
    }

	/**
     * Adds an <CODE>Element</CODE> to the <CODE>Paragraph</CODE>.
     *
     * @param	o the element to add.
     * @return true is adding the object succeeded
     */
    @Override
    public boolean add(final Element o) {
        if (o instanceof List) {
            List list = (List) o;
            list.setIndentationLeft(list.getIndentationLeft() + indentationLeft);
            list.setIndentationRight(indentationRight);
            return super.add(list);
        }
        else if (o instanceof Image) {
            super.addSpecial(o);
            return true;
        }
        return super.add(o);
    }
    /**
     * Sets the alignment of this paragraph.
     *
     * @param	alignment		the new alignment
     */
    public void setAlignment(final int alignment) {
        this.alignment = alignment;
    }

    /**
     * Sets the indentation of this paragraph on the left side.
     *
     * @param	indentation		the new indentation
     */
    public void setIndentationLeft(final float indentation) {
        this.indentationLeft = indentation;
    }

    /**
     * Sets the indentation of this paragraph on the right side.
     *
     * @param	indentation		the new indentation
     */
    public void setIndentationRight(final float indentation) {
        this.indentationRight = indentation;
    }

    /**
     * Setter for property firstLineIndent.
     * @param firstLineIndent New value of property firstLineIndent.
     */
    public void setFirstLineIndent(final float firstLineIndent) {
        this.firstLineIndent = firstLineIndent;
    }

    /**
     * Sets the spacing before this paragraph.
     *
     * @param	spacing		the new spacing
     */
    public void setSpacingBefore(final float spacing) {
        this.spacingBefore = spacing;
    }

    /**
     * Sets the spacing after this paragraph.
     *
     * @param	spacing		the new spacing
     */
    public void setSpacingAfter(final float spacing) {
        this.spacingAfter = spacing;
    }

    /**
     * Indicates that the paragraph has to be kept together on one page.
     *
     * @param   keeptogether    true of the paragraph may not be split over 2 pages
     */
    public void setKeepTogether(final boolean keeptogether) {
        this.keeptogether = keeptogether;
    }

    /**
     * Checks if this paragraph has to be kept together on one page.
     *
     * @return  true if the paragraph may not be split over 2 pages.
     */
    public boolean getKeepTogether() {
        return keeptogether;
    }

    // methods to retrieve information

	/**
     * Gets the alignment of this paragraph.
     *
     * @return	alignment
     */
    public int getAlignment() {
        return alignment;
    }

	/**
     * Gets the indentation of this paragraph on the left side.
     *
     * @return	the indentation
     */
    public float getIndentationLeft() {
        return indentationLeft;
    }

	/**
	 * Gets the indentation of this paragraph on the right side.
	 *
	 * @return	the indentation
	 */
    public float getIndentationRight() {
        return indentationRight;
    }

    /**
     * Getter for property firstLineIndent.
     * @return Value of property firstLineIndent.
     */
    public float getFirstLineIndent() {
        return this.firstLineIndent;
    }

    /**
     * Gets the spacing before this paragraph.
     * @return	the spacing
     * @since	2.1.5
     */
    public float getSpacingBefore() {
    	return spacingBefore;
    }

    /**
     * Gets the spacing after this paragraph.
     * @return	the spacing
     * @since	2.1.5
     */
    public float getSpacingAfter() {
    	return spacingAfter;
    }

    /**
     * Getter for property extraParagraphSpace.
     * @return Value of property extraParagraphSpace.
     */
    public float getExtraParagraphSpace() {
        return this.extraParagraphSpace;
    }

    /**
     * Setter for property extraParagraphSpace.
     * @param extraParagraphSpace New value of property extraParagraphSpace.
     */
    public void setExtraParagraphSpace(final float extraParagraphSpace) {
        this.extraParagraphSpace = extraParagraphSpace;
    }

    // scheduled for removal

    /**
     * Gets the spacing before this paragraph.
     *
     * @return	the spacing
     * @deprecated As of iText 2.1.5, replaced by {@link #getSpacingBefore()},
     * scheduled for removal at 2.3.0
     */
    @Deprecated
    public float spacingBefore() {
        return getSpacingBefore();
    }

    /**
     * Gets the spacing after this paragraph.
     *
     * @return	the spacing
     * @deprecated As of iText 2.1.5, replaced by {@link #getSpacingAfter()},
     * scheduled for removal at 2.3.0
     */
    @Deprecated
    public float spacingAfter() {
        return spacingAfter;
    }

}
