/*
* $Id: Section.java 4862 2011-05-11 15:57:42Z 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.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import com.itextpdf.text.api.Indentable;
import com.itextpdf.text.error_messages.MessageLocalization;
/**
* A <CODE>Section</CODE> is a part of a <CODE>Document</CODE> containing
* other <CODE>Section</CODE>s, <CODE>Paragraph</CODE>s, <CODE>List</CODE>
* and/or <CODE>Table</CODE>s.
* <P>
* Remark: you can not construct a <CODE>Section</CODE> yourself.
* You will have to ask an instance of <CODE>Section</CODE> to the
* <CODE>Chapter</CODE> or <CODE>Section</CODE> to which you want to
* add the new <CODE>Section</CODE>.
* <P>
* Example:
* <BLOCKQUOTE><PRE>
* Paragraph title2 = new Paragraph("This is Chapter 2", FontFactory.getFont(FontFactory.HELVETICA, 18, Font.BOLDITALIC, new Color(0, 0, 255)));
* Chapter chapter2 = new Chapter(title2, 2);
* Paragraph someText = new Paragraph("This is some text");
* chapter2.add(someText);
* Paragraph title21 = new Paragraph("This is Section 1 in Chapter 2", FontFactory.getFont(FontFactory.HELVETICA, 16, Font.BOLD, new Color(255, 0, 0)));
* <STRONG>Section section1 = chapter2.addSection(title21);</STRONG>
* Paragraph someSectionText = new Paragraph("This is some silly paragraph in a chapter and/or section. It contains some text to test the functionality of Chapters and Section.");
* <STRONG>section1.add(someSectionText);</STRONG>
* Paragraph title211 = new Paragraph("This is SubSection 1 in Section 1 in Chapter 2", FontFactory.getFont(FontFactory.HELVETICA, 14, Font.BOLD, new Color(255, 0, 0)));
* <STRONG>Section section11 = section1.addSection(40, title211, 2);</STRONG>
* <STRONG>section11.add(someSectionText);</STRONG>
* </PRE></BLOCKQUOTE>
*/
public class Section extends ArrayList<Element> implements TextElementArray, LargeElement, Indentable {
// constant
/**
* A possible number style. The default number style: "1.2.3."
* @since iText 2.0.8
*/
public static final int NUMBERSTYLE_DOTTED = 0;
/**
* A possible number style. For instance: "1.2.3"
* @since iText 2.0.8
*/
public static final int NUMBERSTYLE_DOTTED_WITHOUT_FINAL_DOT = 1;
/** A serial version uid. */
private static final long serialVersionUID = 3324172577544748043L;
// member variables
/** The title of this section. */
protected Paragraph title;
/** The bookmark title if different from the content title */
protected String bookmarkTitle;
/** The number of sectionnumbers that has to be shown before the section title. */
protected int numberDepth;
/**
* The style for sectionnumbers.
* @since iText 2.0.8
*/
protected int numberStyle = NUMBERSTYLE_DOTTED;
/** The indentation of this section on the left side. */
protected float indentationLeft;
/** The indentation of this section on the right side. */
protected float indentationRight;
/** The additional indentation of the content of this section. */
protected float indentation;
/** false if the bookmark children are not visible */
protected boolean bookmarkOpen = true;
/** true if the section has to trigger a new page */
protected boolean triggerNewPage = false;
/** This is the number of subsections. */
protected int subsections = 0;
/** This is the complete list of sectionnumbers of this section and the parents of this section. */
protected ArrayList<Integer> numbers = null;
/**
* Indicates if the Section will be complete once added to the document.
* @since iText 2.0.8
*/
protected boolean complete = true;
/**
* Indicates if the Section was added completely to the document.
* @since iText 2.0.8
*/
protected boolean addedCompletely = false;
/**
* Indicates if this is the first time the section was added.
* @since iText 2.0.8
*/
protected boolean notAddedYet = true;
// constructors
/**
* Constructs a new <CODE>Section</CODE>.
*/
protected Section() {
title = new Paragraph();
numberDepth = 1;
}
/**
* Constructs a new <CODE>Section</CODE>.
*
* @param title a <CODE>Paragraph</CODE>
* @param numberDepth the numberDepth
*/
protected Section(final Paragraph title, final int numberDepth) {
this.numberDepth = numberDepth;
this.title = title;
}
// implementation of the Element-methods
/**
* Processes the element by adding it (or the different parts) to an
* <CODE>ElementListener</CODE>.
*
* @param listener the <CODE>ElementListener</CODE>
* @return <CODE>true</CODE> if the element was processed successfully
*/
public boolean process(final ElementListener listener) {
try {
Element element;
for (Object element2 : this) {
element = (Element)element2;
listener.add(element);
}
return true;
}
catch(DocumentException de) {
return false;
}
}
/**
* Gets the type of the text element.
*
* @return a type
*/
public int type() {
return Element.SECTION;
}
/**
* Checks if this object is a <CODE>Chapter</CODE>.
*
* @return <CODE>true</CODE> if it is a <CODE>Chapter</CODE>,
* <CODE>false</CODE> if it is a <CODE>Section</CODE>.
*/
public boolean isChapter() {
return type() == Element.CHAPTER;
}
/**
* Checks if this object is a <CODE>Section</CODE>.
*
* @return <CODE>true</CODE> if it is a <CODE>Section</CODE>,
* <CODE>false</CODE> if it is a <CODE>Chapter</CODE>.
*/
public boolean isSection() {
return type() == Element.SECTION;
}
/**
* Gets all the chunks in this element.
*
* @return an <CODE>ArrayList</CODE>
*/
public List<Chunk> getChunks() {
List<Chunk> tmp = new ArrayList<Chunk>();
for (Object element : this) {
tmp.addAll(((Element) element).getChunks());
}
return tmp;
}
/**
* @see com.itextpdf.text.Element#isContent()
* @since iText 2.0.8
*/
public boolean isContent() {
return true;
}
/**
* @see com.itextpdf.text.Element#isNestable()
* @since iText 2.0.8
*/
public boolean isNestable() {
return false;
}
// overriding some of the ArrayList-methods
/**
* Adds a <CODE>Paragraph</CODE>, <CODE>List</CODE> or <CODE>Table</CODE>
* to this <CODE>Section</CODE>.
*
* @param index index at which the specified element is to be inserted
* @param element an element of type <CODE>Paragraph</CODE>, <CODE>List</CODE> or <CODE>Table</CODE>=
* @throws ClassCastException if the object is not a <CODE>Paragraph</CODE>, <CODE>List</CODE> or <CODE>Table</CODE>
* @since 5.0.1 (signature changed to use Element)
*/
@Override
public void add(final int index, final Element element) {
if (isAddedCompletely()) {
throw new IllegalStateException(MessageLocalization.getComposedMessage("this.largeelement.has.already.been.added.to.the.document"));
}
try {
if (element.isNestable()) {
super.add(index, element);
}
else {
throw new ClassCastException(MessageLocalization.getComposedMessage("you.can.t.add.a.1.to.a.section", element.getClass().getName()));
}
}
catch(ClassCastException cce) {
throw new ClassCastException(MessageLocalization.getComposedMessage("insertion.of.illegal.element.1", cce.getMessage()));
}
}
/**
* Adds a <CODE>Paragraph</CODE>, <CODE>List</CODE>, <CODE>Table</CODE> or another <CODE>Section</CODE>
* to this <CODE>Section</CODE>.
*
* @param element an element of type <CODE>Paragraph</CODE>, <CODE>List</CODE>, <CODE>Table</CODE> or another <CODE>Section</CODE>
* @return a boolean
* @throws ClassCastException if the object is not a <CODE>Paragraph</CODE>, <CODE>List</CODE>, <CODE>Table</CODE> or <CODE>Section</CODE>
* @since 5.0.1 (signature changed to use Element)
*/
@Override
public boolean add(final Element element) {
if (isAddedCompletely()) {
throw new IllegalStateException(MessageLocalization.getComposedMessage("this.largeelement.has.already.been.added.to.the.document"));
}
try {
if (element.type() == Element.SECTION) {
Section section = (Section) element;
section.setNumbers(++subsections, numbers);
return super.add(section);
}
else if (element instanceof MarkedSection && ((MarkedObject)element).element.type() == Element.SECTION) {
MarkedSection mo = (MarkedSection)element;
Section section = (Section)mo.element;
section.setNumbers(++subsections, numbers);
return super.add(mo);
}
else if (element.isNestable()) {
return super.add(element);
}
else {
throw new ClassCastException(MessageLocalization.getComposedMessage("you.can.t.add.a.1.to.a.section", element.getClass().getName()));
}
}
catch(ClassCastException cce) {
throw new ClassCastException(MessageLocalization.getComposedMessage("insertion.of.illegal.element.1", cce.getMessage()));
}
}
/**
* Adds a collection of <CODE>Element</CODE>s
* to this <CODE>Section</CODE>.
*
* @param collection a collection of <CODE>Paragraph</CODE>s, <CODE>List</CODE>s and/or <CODE>Table</CODE>s
* @return <CODE>true</CODE> if the action succeeded, <CODE>false</CODE> if not.
* @throws ClassCastException if one of the objects isn't a <CODE>Paragraph</CODE>, <CODE>List</CODE>, <CODE>Table</CODE>
*/
@Override
public boolean addAll(final Collection<? extends Element> collection) {
for (Element element : collection) {
this.add(element);
}
return true;
}
// methods that return a Section
/**
* Creates a <CODE>Section</CODE>, adds it to this <CODE>Section</CODE> and returns it.
*
* @param indentation the indentation of the new section
* @param title the title of the new section
* @param numberDepth the numberDepth of the section
* @return a new Section object
*/
public Section addSection(final float indentation, final Paragraph title, final int numberDepth) {
if (isAddedCompletely()) {
throw new IllegalStateException(MessageLocalization.getComposedMessage("this.largeelement.has.already.been.added.to.the.document"));
}
Section section = new Section(title, numberDepth);
section.setIndentation(indentation);
add(section);
return section;
}
/**
* Creates a <CODE>Section</CODE>, adds it to this <CODE>Section</CODE> and returns it.
*
* @param indentation the indentation of the new section
* @param title the title of the new section
* @return a new Section object
*/
public Section addSection(final float indentation, final Paragraph title) {
return addSection(indentation, title, numberDepth + 1);
}
/**
* Creates a <CODE>Section</CODE>, add it to this <CODE>Section</CODE> and returns it.
*
* @param title the title of the new section
* @param numberDepth the numberDepth of the section
* @return a new Section object
*/
public Section addSection(final Paragraph title, final int numberDepth) {
return addSection(0, title, numberDepth);
}
/**
* Adds a marked section. For use in class MarkedSection only!
* @return the MarkedSection
*/
protected MarkedSection addMarkedSection() {
MarkedSection section = new MarkedSection(new Section(null, numberDepth + 1));
add(section);
return section;
}
/**
* Creates a <CODE>Section</CODE>, adds it to this <CODE>Section</CODE> and returns it.
*
* @param title the title of the new section
* @return a new Section object
*/
public Section addSection(final Paragraph title) {
return addSection(0, title, numberDepth + 1);
}
/**
* Adds a <CODE>Section</CODE> to this <CODE>Section</CODE> and returns it.
*
* @param indentation the indentation of the new section
* @param title the title of the new section
* @param numberDepth the numberDepth of the section
* @return a new Section object
*/
public Section addSection(final float indentation, final String title, final int numberDepth) {
return addSection(indentation, new Paragraph(title), numberDepth);
}
/**
* Adds a <CODE>Section</CODE> to this <CODE>Section</CODE> and returns it.
*
* @param title the title of the new section
* @param numberDepth the numberDepth of the section
* @return a new Section object
*/
public Section addSection(final String title, final int numberDepth) {
return addSection(new Paragraph(title), numberDepth);
}
/**
* Adds a <CODE>Section</CODE> to this <CODE>Section</CODE> and returns it.
*
* @param indentation the indentation of the new section
* @param title the title of the new section
* @return a new Section object
*/
public Section addSection(final float indentation, final String title) {
return addSection(indentation, new Paragraph(title));
}
/**
* Adds a <CODE>Section</CODE> to this <CODE>Section</CODE> and returns it.
*
* @param title the title of the new section
* @return a new Section object
*/
public Section addSection(final String title) {
return addSection(new Paragraph(title));
}
// public methods
/**
* Sets the title of this section.
*
* @param title the new title
*/
public void setTitle(final Paragraph title) {
this.title = title;
}
/**
* Returns the title, preceded by a certain number of sectionnumbers.
*
* @return a <CODE>Paragraph</CODE>
*/
public Paragraph getTitle() {
return constructTitle(title, numbers, numberDepth, numberStyle);
}
/**
* Constructs a Paragraph that will be used as title for a Section or Chapter.
* @param title the title of the section
* @param numbers a list of sectionnumbers
* @param numberDepth how many numbers have to be shown
* @param numberStyle the numbering style
* @return a Paragraph object
* @since iText 2.0.8
*/
public static Paragraph constructTitle(final Paragraph title, final ArrayList<Integer> numbers, final int numberDepth, final int numberStyle) {
if (title == null) {
return null;
}
int depth = Math.min(numbers.size(), numberDepth);
if (depth < 1) {
return title;
}
StringBuffer buf = new StringBuffer(" ");
for (int i = 0; i < depth; i++) {
buf.insert(0, ".");
buf.insert(0, numbers.get(i).intValue());
}
if (numberStyle == NUMBERSTYLE_DOTTED_WITHOUT_FINAL_DOT) {
buf.deleteCharAt(buf.length() - 2);
}
Paragraph result = new Paragraph(title);
result.add(0, new Chunk(buf.toString(), title.getFont()));
return result;
}
/**
* Sets the depth of the sectionnumbers that will be shown preceding the title.
* <P>
* If the numberdepth is 0, the sections will not be numbered. If the numberdepth
* is 1, the section will be numbered with their own number. If the numberdepth is
* higher (for instance x > 1), the numbers of x - 1 parents will be shown.
*
* @param numberDepth the new numberDepth
*/
public void setNumberDepth(final int numberDepth) {
this.numberDepth = numberDepth;
}
/**
* Returns the numberdepth of this <CODE>Section</CODE>.
*
* @return the numberdepth
*/
public int getNumberDepth() {
return numberDepth;
}
/**
* Sets the style for numbering sections.
* Possible values are {@link Section#NUMBERSTYLE_DOTTED}: 1.2.3. (the default)
* or {@link Section#NUMBERSTYLE_DOTTED_WITHOUT_FINAL_DOT}: 1.2.3
* @param numberStyle the style to use
* @since iText 2.0.8
*/
public void setNumberStyle(final int numberStyle) {
this.numberStyle = numberStyle;
}
/**
* Gets the style used for numbering sections.
* @since iText 2.0.8
* @return a value corresponding with a numbering style
*/
public int getNumberStyle() {
return numberStyle;
}
/**
* Sets the indentation of this <CODE>Section</CODE> on the left side.
*
* @param indentation the indentation
*/
public void setIndentationLeft(final float indentation) {
indentationLeft = indentation;
}
/**
* Returns the indentation of this <CODE>Section</CODE> on the left side.
*
* @return the indentation
*/
public float getIndentationLeft() {
return indentationLeft;
}
/**
* Sets the indentation of this <CODE>Section</CODE> on the right side.
*
* @param indentation the indentation
*/
public void setIndentationRight(final float indentation) {
indentationRight = indentation;
}
/**
* Returns the indentation of this <CODE>Section</CODE> on the right side.
*
* @return the indentation
*/
public float getIndentationRight() {
return indentationRight;
}
/**
* Sets the indentation of the content of this <CODE>Section</CODE>.
*
* @param indentation the indentation
*/
public void setIndentation(final float indentation) {
this.indentation = indentation;
}
/**
* Returns the indentation of the content of this <CODE>Section</CODE>.
*
* @return the indentation
*/
public float getIndentation() {
return indentation;
}
/** Setter for property bookmarkOpen.
* @param bookmarkOpen false if the bookmark children are not
* visible.
*/
public void setBookmarkOpen(final boolean bookmarkOpen) {
this.bookmarkOpen = bookmarkOpen;
}
/**
* Getter for property bookmarkOpen.
* @return Value of property bookmarkOpen.
*/
public boolean isBookmarkOpen() {
return bookmarkOpen;
}
/**
* Setter for property triggerNewPage.
* @param triggerNewPage true if a new page has to be triggered.
*/
public void setTriggerNewPage(final boolean triggerNewPage) {
this.triggerNewPage = triggerNewPage;
}
/**
* Getter for property bookmarkOpen.
* @return Value of property triggerNewPage.
*/
public boolean isTriggerNewPage() {
return triggerNewPage && notAddedYet;
}
/**
* Sets the bookmark title. The bookmark title is the same as the section title but
* can be changed with this method.
* @param bookmarkTitle the bookmark title
*/
public void setBookmarkTitle(final String bookmarkTitle) {
this.bookmarkTitle = bookmarkTitle;
}
/**
* Gets the bookmark title.
* @return the bookmark title
*/
public Paragraph getBookmarkTitle() {
if (bookmarkTitle == null)
return getTitle();
else
return new Paragraph(bookmarkTitle);
}
/**
* Changes the Chapter number.
* @param number the new number
*/
public void setChapterNumber(final int number) {
numbers.set(numbers.size() - 1, Integer.valueOf(number));
Object s;
for (Iterator<Element> i = iterator(); i.hasNext(); ) {
s = i.next();
if (s instanceof Section) {
((Section)s).setChapterNumber(number);
}
}
}
/**
* Returns the depth of this section.
*
* @return the depth
*/
public int getDepth() {
return numbers.size();
}
// private methods
/**
* Sets the number of this section.
*
* @param number the number of this section
* @param numbers an <CODE>ArrayList<Integer></CODE>, containing the numbers of the Parent
*/
private void setNumbers(final int number, final ArrayList<Integer> numbers) {
this.numbers = new ArrayList<Integer>();
this.numbers.add(Integer.valueOf(number));
this.numbers.addAll(numbers);
}
/**
* Indicates if this is the first time the section is added.
* @since iText2.0.8
* @return true if the section wasn't added yet
*/
public boolean isNotAddedYet() {
return notAddedYet;
}
/**
* Sets the indication if the section was already added to
* the document.
* @since iText2.0.8
* @param notAddedYet
*/
public void setNotAddedYet(final boolean notAddedYet) {
this.notAddedYet = notAddedYet;
}
/**
* @return return the addedCompletely value
* @since iText 2.0.8
*/
protected boolean isAddedCompletely() {
return addedCompletely;
}
/**
* @param addedCompletely true if section was completely added, false otherwise
* @since iText 2.0.8
*/
protected void setAddedCompletely(final boolean addedCompletely) {
this.addedCompletely = addedCompletely;
}
/**
* @since iText 2.0.8
* @see com.itextpdf.text.LargeElement#flushContent()
*/
public void flushContent() {
setNotAddedYet(false);
title = null;
Element element;
for (Iterator<Element> i = iterator(); i.hasNext(); ) {
element = i.next();
if (element instanceof Section) {
Section s = (Section)element;
if (!s.isComplete() && size() == 1) {
s.flushContent();
return;
}
else {
s.setAddedCompletely(true);
}
}
i.remove();
}
}
/**
* @since iText 2.0.8
* @see com.itextpdf.text.LargeElement#isComplete()
*/
public boolean isComplete() {
return complete;
}
/**
* @since iText 2.0.8
* @see com.itextpdf.text.LargeElement#setComplete(boolean)
*/
public void setComplete(final boolean complete) {
this.complete = complete;
}
/**
* Adds a new page to the section.
* @since 2.1.1
*/
public void newPage() {
this.add(Chunk.NEXTPAGE);
}
}
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