Initial import of release 2.2.REL-2.2@923

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

1 files changed, 210 insertions, 0 deletions

diff --git a/src/main/java/com/lowagie/text/pdf/PdfDate.java b/src/main/java/com/lowagie/text/pdf/PdfDate.java
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+/*

+ * $Id: PdfDate.java,v 1.63 2005/09/04 16:20:01 psoares33 Exp $

+ * $Name:  $

+ *

+ * Copyright 1999, 2000, 2001, 2002 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.pdf;

+

+import java.text.SimpleDateFormat;

+import java.util.GregorianCalendar;

+import java.util.Calendar;

+import java.util.SimpleTimeZone;

+

+/**

+ * <CODE>PdfDate</CODE> is the PDF date object.

+ * <P>

+ * PDF defines a standard date format. The PDF date format closely follows the format

+ * defined by the international standard ASN.1 (Abstract Syntax Notation One, defined

+ * in CCITT X.208 or ISO/IEC 8824). A date is a <CODE>PdfString</CODE> of the form:

+ * <P><BLOCKQUOTE>

+ * (D: YYYYMMDDHHmmSSOHH'mm')

+ * </BLOCKQUOTE><P>

+ * This object is described in the 'Portable Document Format Reference Manual version 1.3'

+ * section 7.2 (page 183-184)

+ *

+ * @see		PdfString

+ * @see		java.util.GregorianCalendar

+ */

+

+public class PdfDate extends PdfString {

+

+    private static final int dateSpace[] = {Calendar.YEAR, 4, 0, Calendar.MONTH, 2, -1, Calendar.DAY_OF_MONTH, 2, 0,

+        Calendar.HOUR_OF_DAY, 2, 0, Calendar.MINUTE, 2, 0, Calendar.SECOND, 2, 0};

+    

+    // constructors

+    

+/**

+ * Constructs a <CODE>PdfDate</CODE>-object.

+ *

+ * @param		d			the date that has to be turned into a <CODE>PdfDate</CODE>-object

+ */

+    

+    public PdfDate(Calendar d) {

+        super();

+        StringBuffer date = new StringBuffer("D:");

+        date.append(setLength(d.get(Calendar.YEAR), 4));

+        date.append(setLength(d.get(Calendar.MONTH) + 1, 2));

+        date.append(setLength(d.get(Calendar.DATE), 2));

+        date.append(setLength(d.get(Calendar.HOUR_OF_DAY), 2));

+        date.append(setLength(d.get(Calendar.MINUTE), 2));

+        date.append(setLength(d.get(Calendar.SECOND), 2));

+        int timezone = (d.get(Calendar.ZONE_OFFSET) + d.get(Calendar.DST_OFFSET)) / (60 * 60 * 1000);

+        if (timezone == 0) {

+            date.append("Z");

+        }

+        else if (timezone < 0) {

+            date.append("-");

+            timezone = -timezone;

+        }

+        else {

+            date.append("+");

+        }

+        if (timezone != 0) {

+            date.append(setLength(timezone, 2)).append("'");

+            int zone = Math.abs((d.get(Calendar.ZONE_OFFSET) + d.get(Calendar.DST_OFFSET)) / (60 * 1000)) - (timezone * 60);

+            date.append(setLength(zone, 2)).append("'");

+        }

+        value = date.toString();

+    }

+    

+/**

+ * Constructs a <CODE>PdfDate</CODE>-object, representing the current day and time.

+ */

+    

+    public PdfDate() {

+        this(new GregorianCalendar());

+    }

+    

+/**

+ * Adds a number of leading zeros to a given <CODE>String</CODE> in order to get a <CODE>String</CODE>

+ * of a certain length.

+ *

+ * @param		i   		a given number

+ * @param		length		the length of the resulting <CODE>String</CODE>

+ * @return		the resulting <CODE>String</CODE>

+ */

+    

+    private String setLength(int i, int length) { // 1.3-1.4 problem fixed by Finn Bock

+        StringBuffer tmp = new StringBuffer();

+        tmp.append(i);

+        while (tmp.length() < length) {

+            tmp.insert(0, "0");

+        }

+        tmp.setLength(length);

+        return tmp.toString();

+    }

+    

+    /**

+     * Gives the W3C format of the PdfDate.

+     * @return a formatted date

+     */

+    public String getW3CDate() {

+        return getW3CDate(value);

+    }

+    

+    /**

+     * Gives the W3C format of the PdfDate.

+     * @param d

+     * @return a formatted date

+     */

+    public static String getW3CDate(String d) {

+    	SimpleDateFormat w3c = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");

+    	Calendar c = decode(d);

+		return w3c.format(c.getTime());

+    }

+    

+    /**

+     * Converts a PDF string representing a date into a Calendar.

+     * @param s the PDF string representing a date

+     * @return a <CODE>Calendar</CODE> representing the date or <CODE>null</CODE> if the string

+     * was not a date

+     */    

+    public static Calendar decode(String s) {

+        try {

+            if (s.startsWith("D:"))

+                s = s.substring(2);

+            GregorianCalendar calendar;

+            int slen = s.length();

+            int idx = s.indexOf('Z');

+            if (idx >= 0) {

+                slen = idx;

+                calendar = new GregorianCalendar(new SimpleTimeZone(0, "ZPDF"));

+            }

+            else {

+                int sign = 1;

+                idx = s.indexOf('+');

+                if (idx < 0) {

+                    idx = s.indexOf('-');

+                    if (idx >= 0)

+                        sign = -1;

+                }

+                if (idx < 0)

+                    calendar = new GregorianCalendar();

+                else {

+                    int offset = Integer.parseInt(s.substring(idx + 1, idx + 3)) * 60;

+                    if (idx + 5 < s.length())

+                        offset += Integer.parseInt(s.substring(idx + 4, idx + 6));

+                    calendar = new GregorianCalendar(new SimpleTimeZone(offset * sign * 60000, "ZPDF"));

+                    slen = idx;

+                }

+            }

+            calendar.clear();

+            idx = 0;

+            for (int k = 0; k < dateSpace.length; k += 3) {

+                if (idx >= slen)

+                    break;

+                calendar.set(dateSpace[k], Integer.parseInt(s.substring(idx, idx + dateSpace[k + 1])) + dateSpace[k + 2]);

+                idx += dateSpace[k + 1];

+            }

+            return calendar;

+        }

+        catch (Exception e) {

+            return null;

+        }

+    }

+}
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