AbstractXMLGeneratingCanvasProvider


1   /*
2    * $Id: AbstractXMLGeneratingCanvasProvider.java,v 1.4 2003/07/14 08:25:52 jmaerki Exp $
3    * ============================================================================
4    * The Krysalis Patchy Software License, Version 1.1_01
5    * Copyright (c) 2002-2003 Nicola Ken Barozzi.  All rights reserved.
6    *
7    * This Licence is compatible with the BSD licence as described and
8    * approved by http://www.opensource.org/, and is based on the
9    * Apache Software Licence Version 1.1.
10   *
11   * Redistribution and use in source and binary forms, with or without
12   * modification, are permitted provided that the following conditions
13   * are met:
14   *
15   * 1. Redistributions of source code must retain the above copyright
16   *    notice, this list of conditions and the following disclaimer.
17   *
18   * 2. Redistributions in binary form must reproduce the above copyright
19   *    notice, this list of conditions and the following disclaimer in
20   *    the documentation and/or other materials provided with the
21   *    distribution.
22   *
23   * 3. The end-user documentation included with the redistribution,
24   *    if any, must include the following acknowledgment:
25   *       "This product includes software developed for project
26   *        Krysalis (http://www.krysalis.org/)."
27   *    Alternately, this acknowledgment may appear in the software itself,
28   *    if and wherever such third-party acknowledgments normally appear.
29   *
30   * 4. The names "Krysalis" and "Nicola Ken Barozzi" and
31   *    "Krysalis Barcode" must not be used to endorse or promote products
32   *    derived from this software without prior written permission. For
33   *    written permission, please contact nicolaken@krysalis.org.
34   *
35   * 5. Products derived from this software may not be called "Krysalis",
36   *    "Krysalis Barcode", nor may "Krysalis" appear in their name,
37   *    without prior written permission of Nicola Ken Barozzi.
38   *
39   * 6. This software may contain voluntary contributions made by many
40   *    individuals, who decided to donate the code to this project in
41   *    respect of this licence, and was originally created by
42   *    Jeremias Maerki <jeremias@maerki.org>.
43   *
44   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
45   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
46   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
47   * DISCLAIMED.  IN NO EVENT SHALL THE KRYSALIS PROJECT OR
48   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
49   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
50   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
51   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
52   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
53   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
54   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55   * SUCH DAMAGE.
56   * ====================================================================
57   */
58  package org.krysalis.barcode.output;
59  
60  import java.text.DecimalFormat  ;
61  import java.text.DecimalFormatSymbols  ;
62  
63  /**
64   * Abstract base class that provides some commonly used methods for 
65   * generating XML representations of barcodes.
66   * 
67   * @author Jeremias Maerki
68   */
69  public abstract class AbstractXMLGeneratingCanvasProvider
70          extends AbstractCanvasProvider {
71  
72      private DecimalFormat   df;
73  
74      /**
75       * Returns the DecimalFormat instance to use internally to format numbers.
76       * @return a DecimalFormat instance
77       */
78      protected DecimalFormat   getDecimalFormat() {
79          if (this.df == null) {
80              DecimalFormatSymbols   dfs = new DecimalFormatSymbols  ();
81              dfs.setDecimalSeparator('.');
82              this.df = new DecimalFormat  ("0.####", dfs);
83          }
84          return this.df;
85      }
86  
87      /**
88       * Formats a value and adds the unit specifier at the end.
89       * @param value the value to format
90       * @return the formatted value
91       */
92      protected String   addUnit(double value) {
93          return getDecimalFormat().format(value) + "mm"; //was mm
94      }
95  
96  }
97
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