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iText, a free Java-PDF library
/*
* $Id: ListItem.java 6134 2013-12-23 13:15:14Z blowagie $
*
* This file is part of the iText (R) project.
* Copyright (c) 1998-2014 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):
* 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
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: [email protected]
*/
package com.itextpdf.text;
import com.itextpdf.text.pdf.PdfName;
import com.itextpdf.text.pdf.PdfObject;
import com.itextpdf.text.pdf.PdfStructureElement;
import com.itextpdf.text.pdf.interfaces.IAccessibleElement;
import java.util.HashMap;
/**
* A ListItem is a Paragraph
* that can be added to a List.
*
* Example 1:
*
* List list = new List(true, 20);
* list.add(new ListItem("First line"));
* list.add(new ListItem("The second line is longer to see what happens once the end of the line is reached. Will it start on a new line?"));
* list.add(new ListItem("Third line"));
*
*
* The result of this code looks like this:
*
* -
* First line
*
* -
* The second line is longer to see what happens once the end of the line is reached. Will it start on a new line?
*
* -
* Third line
*
*
*
* Example 2:
*
* List overview = new List(false, 10);
* overview.add(new ListItem("This is an item"));
* overview.add("This is another item");
*
*
* The result of this code looks like this:
*
* -
* This is an item
*
* -
* This is another item
*
*
*
* @see Element
* @see List
* @see Paragraph
*/
public class ListItem extends Paragraph {
// constants
private static final long serialVersionUID = 1970670787169329006L;
// member variables
/**
* this is the symbol that will precede the listitem.
* @since 5.0 used to be private
*/
protected Chunk symbol;
private ListBody listBody = null;
private ListLabel listLabel = null;
// constructors
/**
* Constructs a ListItem.
*/
public ListItem() {
super();
setRole(PdfName.LI);
}
/**
* Constructs a ListItem with a certain leading.
*
* @param leading the leading
*/
public ListItem(final float leading) {
super(leading);
setRole(PdfName.LI);
}
/**
* Constructs a ListItem with a certain Chunk.
*
* @param chunk a Chunk
*/
public ListItem(final Chunk chunk) {
super(chunk);
setRole(PdfName.LI);
}
/**
* Constructs a ListItem with a certain String.
*
* @param string a String
*/
public ListItem(final String string) {
super(string);
setRole(PdfName.LI);
}
/**
* Constructs a ListItem with a certain String
* and a certain Font.
*
* @param string a String
* @param font a String
*/
public ListItem(final String string, final Font font) {
super(string, font);
setRole(PdfName.LI);
}
/**
* Constructs a ListItem with a certain Chunk
* and a certain leading.
*
* @param leading the leading
* @param chunk a Chunk
*/
public ListItem(final float leading, final Chunk chunk) {
super(leading, chunk);
setRole(PdfName.LI);
}
/**
* Constructs a ListItem with a certain String
* and a certain leading.
*
* @param leading the leading
* @param string a String
*/
public ListItem(final float leading, final String string) {
super(leading, string);
setRole(PdfName.LI);
}
/**
* Constructs a ListItem with a certain leading, String
* and Font.
*
* @param leading the leading
* @param string a String
* @param font a Font
*/
public ListItem(final float leading, final String string, final Font font) {
super(leading, string, font);
setRole(PdfName.LI);
}
/**
* Constructs a ListItem with a certain Phrase.
*
* @param phrase a Phrase
*/
public ListItem(final Phrase phrase) {
super(phrase);
setRole(PdfName.LI);
}
// implementation of the Element-methods
/**
* Gets the type of the text element.
*
* @return a type
*/
@Override
public int type() {
return Element.LISTITEM;
}
// methods
/**
* Sets the listsymbol.
*
* @param symbol a Chunk
*/
public void setListSymbol(final Chunk symbol) {
if (this.symbol == null) {
this.symbol = symbol;
if (this.symbol.getFont().isStandardFont()) {
this.symbol.setFont(font);
}
}
}
/**
* Sets the indentation of this paragraph on the left side.
*
* @param indentation the new indentation
* @param autoindent if set to true, indentation is done automagically, the given indentation float is disregarded.
*/
public void setIndentationLeft(final float indentation, final boolean autoindent) {
if (autoindent) {
setIndentationLeft(getListSymbol().getWidthPoint());
}
else {
setIndentationLeft(indentation);
}
}
/**
* Changes the font of the list symbol to the font of the first chunk
* in the list item.
* @since 5.0.6
*/
public void adjustListSymbolFont() {
java.util.List cks = getChunks();
if (!cks.isEmpty() && symbol != null)
symbol.setFont(cks.get(0).getFont());
}
// methods to retrieve information
/**
* Returns the listsymbol.
*
* @return a Chunk
*/
public Chunk getListSymbol() {
return symbol;
}
public ListBody getListBody() {
if (listBody == null)
listBody = new ListBody(this);
return listBody;
}
public ListLabel getListLabel() {
if (listLabel == null)
listLabel = new ListLabel(this);
return listLabel;
}
}