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Java > Open Source Codes > org > apache > fop > layoutmgr > PaddingElement


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */

17
18 /* $Id: PaddingElement.java 426576 2006-07-28 15:44:37Z jeremias $ */
19
20 package org.apache.fop.layoutmgr;
21
22 import org.apache.fop.datatypes.PercentBaseContext;
23 import org.apache.fop.fo.properties.CondLengthProperty;
24 import org.apache.fop.traits.MinOptMax;
25
26 /**
27  * This represents an unresolved padding element.
28  */

29 public class PaddingElement extends BorderOrPaddingElement {
30
31     /**
32      * Main constructor
33      * @param position the Position instance needed by the addAreas stage of the LMs.
34      * @param side the side to which this space element applies.
35      * @param condLength the length-conditional property for a border or padding specification
36      * @param isFirst true if this is a padding- or border-before of the first area generated.
37      * @param isLast true if this is a padding- or border-after of the last area generated.
38      * @param context the property evaluation context
39      */

40     public PaddingElement(Position position, CondLengthProperty condLength,
41             RelSide side,
42             boolean isFirst, boolean isLast, PercentBaseContext context) {
43         super(position, condLength, side, isFirst, isLast, context);
44     }
45     
46     /** @see org.apache.fop.layoutmgr.UnresolvedListElementWithLength */
47     public void notifyLayoutManager(MinOptMax effectiveLength) {
48         LayoutManager lm = getOriginatingLayoutManager();
49         if (lm instanceof ConditionalElementListener) {
50             ((ConditionalElementListener)lm).notifyPadding(
51                     getSide(), effectiveLength);
52         } else {
53             log.warn("Cannot notify LM. It does not implement ConditionalElementListene: "
54                     + lm.getClass().getName());
55         }
56     }
57
58     /** @see java.lang.Object#toString() */
59     public String JavaDoc toString() {
60         StringBuffer JavaDoc sb = new StringBuffer JavaDoc("Padding[");
61         sb.append(super.toString());
62         sb.append("]");
63         return sb.toString();
64     }
65     
66 }
67
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