/* * $Id: Section.java,v 1.81 2005/09/28 07:55:29 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; import java.util.Collection; import java.util.Iterator; import java.util.Properties; /** * A Section is a part of a Document containing * other Sections, Paragraphs, List * and/or Tables. *

* Remark: you can not construct a Section yourself. * You will have to ask an instance of Section to the * Chapter or Section to which you want to * add the new Section. *

* Example: *

 * 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)));
 * Section section1 = chapter2.addSection(title21);
 * 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.");
 * section1.add(someSectionText);
 * 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)));
 * Section section11 = section1.addSection(40, title211, 2);
 * section11.add(someSectionText);
 * 
*/ public class Section extends ArrayList implements TextElementArray { // membervariables /** This is the title of this section. */ protected Paragraph title; /** This is the number of sectionnumbers that has to be shown before the section title. */ protected int numberDepth; /** 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 sectionIndent; /** 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 numbers = null; /** false if the bookmark children are not visible */ protected boolean bookmarkOpen = true; /** The bookmark title if different from the content title */ protected String bookmarkTitle; // constructors /** * Constructs a new Section. */ protected Section() { title = new Paragraph(); numberDepth = 1; } /** * Constructs a new Section. * * @param title a Paragraph * @param numberDepth the numberDepth */ Section(Paragraph title, int numberDepth) { this.numberDepth = numberDepth; this.title = title; } // private methods /** * Sets the number of this section. * * @param number the number of this section * @param numbers an ArrayList, containing the numbers of the Parent */ private void setNumbers(int number, ArrayList numbers) { this.numbers = new ArrayList(); this.numbers.add(new Integer(number)); this.numbers.addAll(numbers); } // implementation of the Element-methods /** * Processes the element by adding it (or the different parts) to an * ElementListener. * * @param listener the ElementListener * @return true if the element was processed successfully */ public boolean process(ElementListener listener) { try { for (Iterator i = iterator(); i.hasNext(); ) { listener.add((Element) i.next()); } return true; } catch(DocumentException de) { return false; } } /** * Gets the type of the text element. * * @return a type */ public int type() { return Element.SECTION; } /** * Gets all the chunks in this element. * * @return an ArrayList */ public ArrayList getChunks() { ArrayList tmp = new ArrayList(); for (Iterator i = iterator(); i.hasNext(); ) { tmp.addAll(((Element) i.next()).getChunks()); } return tmp; } // overriding some of the ArrayList-methods /** * Adds a Paragraph, List or Table * to this Section. * * @param index index at which the specified element is to be inserted * @param o an object of type Paragraph, List or Table= * @throws ClassCastException if the object is not a Paragraph, List or Table */ public void add(int index, Object o) { try { Element element = (Element) o; if (element.type() == Element.PARAGRAPH || element.type() == Element.LIST || element.type() == Element.CHUNK || element.type() == Element.PHRASE || element.type() == Element.ANCHOR || element.type() == Element.ANNOTATION || element.type() == Element.TABLE || element.type() == Element.PTABLE || element.type() == Element.IMGTEMPLATE || element.type() == Element.JPEG || element.type() == Element.IMGRAW) { super.add(index, element); } else { throw new ClassCastException(String.valueOf(element.type())); } } catch(ClassCastException cce) { throw new ClassCastException("Insertion of illegal Element: " + cce.getMessage()); } } /** * Adds a Paragraph, List, Table or another Section * to this Section. * * @param o an object of type Paragraph, List, Table or another Section * @return a boolean * @throws ClassCastException if the object is not a Paragraph, List, Table or Section */ public boolean add(Object o) { try { Element element = (Element) o; if (element.type() == Element.PARAGRAPH || element.type() == Element.LIST || element.type() == Element.CHUNK || element.type() == Element.PHRASE || element.type() == Element.ANCHOR || element.type() == Element.ANNOTATION || element.type() == Element.TABLE || element.type() == Element.IMGTEMPLATE || element.type() == Element.PTABLE || element.type() == Element.JPEG || element.type() == Element.IMGRAW) { return super.add(o); } else if (element.type() == Element.SECTION) { Section section = (Section) o; section.setNumbers(++subsections, numbers); return super.add(section); } else { throw new ClassCastException(String.valueOf(element.type())); } } catch(ClassCastException cce) { throw new ClassCastException("Insertion of illegal Element: " + cce.getMessage()); } } /** * Adds a collection of Elements * to this Section. * * @param collection a collection of Paragraphs, Lists and/or Tables * @return true if the action succeeded, false if not. * @throws ClassCastException if one of the objects isn't a Paragraph, List, Table */ public boolean addAll(Collection collection) { for (Iterator iterator = collection.iterator(); iterator.hasNext(); ) { this.add(iterator.next()); } return true; } // methods that return a Section /** * Creates a Section, adds it to this Section 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(float indentation, Paragraph title, int numberDepth) { Section section = new Section(title, numberDepth); section.setIndentation(indentation); add(section); return section; } /** * Creates a Section, adds it to this Section 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(float indentation, Paragraph title) { Section section = new Section(title, 1); section.setIndentation(indentation); add(section); return section; } /** * Creates a Section, add it to this Section 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(Paragraph title, int numberDepth) { Section section = new Section(title, numberDepth); add(section); return section; } /** * Creates a Section, adds it to this Section and returns it. * * @param title the title of the new section * @return a new Section object */ public Section addSection(Paragraph title) { Section section = new Section(title, numberDepth + 1); add(section); return section; } /** * Adds a Section to this Section 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(float indentation, String title, int numberDepth) { Section section = new Section(new Paragraph(title), numberDepth); section.setIndentation(indentation); add(section); return section; } /** * Adds a Section to this Section 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(String title, int numberDepth) { Section section = new Section(new Paragraph(title), numberDepth); add(section); return section; } /** * Adds a Section to this Section 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(float indentation, String title) { Section section = new Section(new Paragraph(title), 1); section.setIndentation(indentation); add(section); return section; } /** * Adds a Section to this Section and returns it. * * @param title the title of the new section * @return a new Section object */ public Section addSection(String title) { Section section = new Section(new Paragraph(title), numberDepth + 1); add(section); return section; } /** * Creates a given Section following a set of attributes and adds it to this one. * * @param attributes the attributes * @return a Section */ public Section addSection(Properties attributes) { Section section = new Section(new Paragraph(""), 1); String value; if ((value = (String)attributes.remove(ElementTags.NUMBER)) != null) { subsections = Integer.parseInt(value) - 1; } section.set(attributes); add(section); return section; } // public methods /** * Alters the attributes of this Section. * * @param attributes the attributes */ public void set(Properties attributes) { String value; if ((value = (String)attributes.remove(ElementTags.NUMBERDEPTH)) != null) { setNumberDepth(Integer.parseInt(value)); } if ((value = (String)attributes.remove(ElementTags.INDENT)) != null) { setIndentation(Float.valueOf(value + "f").floatValue()); } if ((value = (String)attributes.remove(ElementTags.INDENTATIONLEFT)) != null) { setIndentationLeft(Float.valueOf(value + "f").floatValue()); } if ((value = (String)attributes.remove(ElementTags.INDENTATIONRIGHT)) != null) { setIndentationRight(Float.valueOf(value + "f").floatValue()); } } /** * Sets the title of this section. * * @param title the new title */ public void setTitle(Paragraph title) { this.title = title; } /** * Sets the depth of the sectionnumbers that will be shown preceding the title. *

* 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(int numberDepth) { this.numberDepth = numberDepth; } /** * Sets the indentation of this Section on the left side. * * @param indentation the indentation */ public void setIndentationLeft(float indentation) { indentationLeft = indentation; } /** * Sets the indentation of this Section on the right side. * * @param indentation the indentation */ public void setIndentationRight(float indentation) { indentationRight = indentation; } /** * Sets the indentation of the content of this Section. * * @param indentation the indentation */ public void setIndentation(float indentation) { sectionIndent = indentation; } // methods to retrieve information /** * Checks if this object is a Chapter. * * @return true if it is a Chapter, * false if it is a Section. */ public boolean isChapter() { return type() == Element.CHAPTER; } /** * Checks if this object is a Section. * * @return true if it is a Section, * false if it is a Chapter. */ public boolean isSection() { return type() == Element.SECTION; } /** * Returns the numberdepth of this Section. * * @return the numberdepth */ public int numberDepth() { return numberDepth; } /** * Returns the indentation of this Section on the left side. * * @return the indentation */ public float indentationLeft() { return indentationLeft; } /** * Returns the indentation of this Section on the right side. * * @return the indentation */ public float indentationRight() { return indentationRight; } /** * Returns the indentation of the content of this Section. * * @return the indentation */ public float indentation() { return sectionIndent; } /** * Returns the depth of this section. * * @return the depth */ public int depth() { return numbers.size(); } /** * Returns the title, preceeded by a certain number of sectionnumbers. * * @return a Paragraph */ public Paragraph title() { 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, ((Integer) numbers.get(i)).intValue()); } Paragraph result = new Paragraph(title); result.setMarkupAttributes(title.getMarkupAttributes()); result.add(0, new Chunk(buf.toString(), title.font())); return result; } /** * Checks if a given tag corresponds with a title tag for this object. * * @param tag the given tag * @return true if the tag corresponds */ public static boolean isTitle(String tag) { return ElementTags.TITLE.equals(tag); } /** * Checks if a given tag corresponds with this object. * * @param tag the given tag * @return true if the tag corresponds */ public static boolean isTag(String tag) { return ElementTags.SECTION.equals(tag); } /** Getter for property bookmarkOpen. * @return Value of property bookmarkOpen. */ public boolean isBookmarkOpen() { return bookmarkOpen; } /** Setter for property bookmarkOpen. * @param bookmarkOpen false if the bookmark children are not * visible. */ public void setBookmarkOpen(boolean bookmarkOpen) { this.bookmarkOpen = bookmarkOpen; } /** * Gets the bookmark title. * @return the bookmark title */ public Paragraph getBookmarkTitle() { if (bookmarkTitle == null) return title(); else return new Paragraph(bookmarkTitle); } /** * 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(String bookmarkTitle) { this.bookmarkTitle = bookmarkTitle; } }