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1   /*
2    * Copyright 2002 - 2007 JEuclid, http://jeuclid.sf.net
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  /* $Id: RelativeScriptlevelLayoutContext.java,v 8afef6dd0d58 2007/09/14 08:29:58 maxberger $ */
18  
19  package net.sourceforge.jeuclid.context;
20  
21  import net.sourceforge.jeuclid.LayoutContext;
22  
23  /**
24   * @version $Revision: 8afef6dd0d58 $
25   */
26  public class RelativeScriptlevelLayoutContext implements LayoutContext {
27  
28      private final LayoutContext parentLayoutContext;
29  
30      private final int sizeOffset;
31  
32      /**
33       * Default Constructor.
34       * 
35       * @param parent
36       *            LayoutContext of parent.
37       * @param offset
38       *            offset to parent. In most cases this will be 1.
39       * 
40       */
41      public RelativeScriptlevelLayoutContext(final LayoutContext parent,
42              final int offset) {
43          this.parentLayoutContext = parent;
44          this.sizeOffset = offset;
45      }
46  
47      /** {@inheritDoc} */
48      public Object getParameter(final Parameter which) {
49          if (Parameter.SCRIPTLEVEL.equals(which)) {
50              return ((Integer) this.parentLayoutContext
51                      .getParameter(Parameter.SCRIPTLEVEL))
52                      + this.sizeOffset;
53          }
54          return this.parentLayoutContext.getParameter(which);
55      }
56  }