KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > fop > fo > LengthProperty


1 /*
2  * $Id: LengthProperty.java,v 1.5.2.1 2003/02/25 12:56:54 jeremias Exp $
3  * ============================================================================
4  * The Apache Software License, Version 1.1
5  * ============================================================================
6  *
7  * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without modifica-
10  * tion, are permitted provided that the following conditions are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
17  * and/or other materials provided with the distribution.
18  *
19  * 3. The end-user documentation included with the redistribution, if any, must
20  * include the following acknowledgment: "This product includes software
21  * developed by the Apache Software Foundation (http://www.apache.org/)."
22  * Alternately, this acknowledgment may appear in the software itself, if
23  * and wherever such third-party acknowledgments normally appear.
24  *
25  * 4. The names "FOP" and "Apache Software Foundation" must not be used to
26  * endorse or promote products derived from this software without prior
27  * written permission. For written permission, please contact
28  * apache@apache.org.
29  *
30  * 5. Products derived from this software may not be called "Apache", nor may
31  * "Apache" appear in their name, without prior written permission of the
32  * Apache Software Foundation.
33  *
34  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
35  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
36  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
37  * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
38  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
39  * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
40  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
41  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
42  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
43  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44  * ============================================================================
45  *
46  * This software consists of voluntary contributions made by many individuals
47  * on behalf of the Apache Software Foundation and was originally created by
48  * James Tauber <jtauber@jtauber.com>. For more information on the Apache
49  * Software Foundation, please see <http://www.apache.org/>.
50  */
51 package org.apache.fop.fo;
52
53 import org.apache.fop.datatypes.Length;
54 import org.apache.fop.datatypes.AutoLength;
55 import org.apache.fop.fo.expr.Numeric;
56 import org.apache.fop.apps.FOPException;
57
58 public class LengthProperty extends Property {
59
60     public static class Maker extends Property.Maker {
61
62         public /* protected */ Maker(String JavaDoc name) {
63             super(name);
64         }
65
66         /**
67          * protected Property checkPropertyKeywords(String value) {
68          * if (isAutoLengthAllowed() && value.equals("auto")) {
69          * return new LengthProperty(Length.AUTO);
70          * }
71          * return null;
72          * }
73          */
74
75         protected boolean isAutoLengthAllowed() {
76             return false;
77         }
78
79         public Property convertProperty(Property p,
80                                         PropertyList propertyList,
81                                         FObj fo) throws FOPException {
82             if (isAutoLengthAllowed()) {
83                 String JavaDoc pval = p.getString();
84                 if (pval != null && pval.equals("auto"))
85                     return new LengthProperty(new AutoLength());
86             }
87             if (p instanceof LengthProperty)
88                 return p;
89             Length val = p.getLength();
90             if (val != null)
91                 return new LengthProperty(val);
92             return convertPropertyDatatype(p, propertyList, fo);
93         }
94
95     }
96
97     /*
98      * public static Property.Maker maker(String prop) {
99      * return new Maker(prop);
100      * }
101      */
102
103     /**
104      * This object may be also be a subclass of Length, such
105      * as PercentLength, TableColLength.
106      */
107     private Length length;
108
109     public LengthProperty(Length length) {
110         this.length = length;
111         // System.err.println("Set LengthProperty: " + length.toString());
112 }
113
114     public Numeric getNumeric() {
115         return length.asNumeric() ;
116     }
117
118     public Length getLength() {
119         return this.length;
120     }
121
122     public Object JavaDoc getObject() {
123         return this.length;
124     }
125
126 }
127
Popular Tags