/*
* $Id: PdfCollectionSort.java 4113 2009-12-01 11:08:59Z blowagie $
*
* This file is part of the iText project.
* Copyright (c) 1998-2009 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,
* you 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: sales@itextpdf.com
*/
package com.itextpdf.text.pdf.collection;
import com.itextpdf.text.pdf.PdfArray;
import com.itextpdf.text.pdf.PdfBoolean;
import com.itextpdf.text.pdf.PdfDictionary;
import com.itextpdf.text.pdf.PdfName;
import com.itextpdf.text.pdf.PdfObject;
import com.itextpdf.text.error_messages.MessageLocalization;
public class PdfCollectionSort extends PdfDictionary {
/**
* Constructs a PDF Collection Sort Dictionary.
* @param key the key of the field that will be used to sort entries
*/
public PdfCollectionSort(String key) {
super(PdfName.COLLECTIONSORT);
put(PdfName.S, new PdfName(key));
}
/**
* Constructs a PDF Collection Sort Dictionary.
* @param keys the keys of the fields that will be used to sort entries
*/
public PdfCollectionSort(String[] keys) {
super(PdfName.COLLECTIONSORT);
PdfArray array = new PdfArray();
for (int i = 0; i < keys.length; i++) {
array.add(new PdfName(keys[i]));
}
put(PdfName.S, array);
}
/**
* Defines the sort order of the field (ascending or descending).
* @param ascending true is the default, use false for descending order
*/
public void setSortOrder(boolean ascending) {
PdfObject o = get(PdfName.S);
if (o instanceof PdfName) {
put(PdfName.A, new PdfBoolean(ascending));
}
else {
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("you.have.to.define.a.boolean.array.for.this.collection.sort.dictionary"));
}
}
/**
* Defines the sort order of the field (ascending or descending).
* @param ascending an array with every element corresponding with a name of a field.
*/
public void setSortOrder(boolean[] ascending) {
PdfObject o = get(PdfName.S);
if (o instanceof PdfArray) {
if (((PdfArray)o).size() != ascending.length) {
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("the.number.of.booleans.in.this.array.doesn.t.correspond.with.the.number.of.fields"));
}
PdfArray array = new PdfArray();
for (int i = 0; i < ascending.length; i++) {
array.add(new PdfBoolean(ascending[i]));
}
put(PdfName.A, array);
}
else {
throw new IllegalArgumentException(MessageLocalization.getComposedMessage("you.need.a.single.boolean.for.this.collection.sort.dictionary"));
}
}
}