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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.internal.layout;
21  
22  import org.apache.myfaces.tobago.layout.Measure;
23  
24  import java.util.ArrayList;
25  import java.util.List;
26  
27  public class FactorList extends ArrayList<Integer> {
28  
29    public List<Measure> partition(final Measure size) {
30  
31      final List<Measure> result = new ArrayList<Measure>(size());
32  
33      int sum = 0;
34      for (final Integer integer : this) {
35        sum += integer;
36      }
37  
38      final double[] doubles = new double[size()];
39      int i = 0;
40      for (final Integer integer : this) {
41        doubles[i++] = integer * size.getPixel() / (double) sum;
42      }
43  
44      MathUtils.adjustRemainders(doubles, 0.0);
45  
46      for (final double value : doubles) {
47        result.add(Measure.valueOf((int) value));
48      }
49  
50      return result;
51    }
52  }