View Javadoc

1   /*
2    * Copyright (c) 2003-2008 by Cosylab d. d.
3    *
4    * This file is part of CosyBeans-Common.
5    *
6    * CosyBeans-Common is free software: you can redistribute it and/or modify
7    * it under the terms of the GNU General Public License as published by
8    * the Free Software Foundation, either version 3 of the License, or
9    * (at your option) any later version.
10   *
11   * CosyBeans-Common is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   * GNU General Public License for more details.
15   *
16   * You should have received a copy of the GNU General Public License
17   * along with CosyBeans-Common.  If not, see <http://www.gnu.org/licenses/>.
18   */
19  
20  package com.cosylab.gui.components.range2;
21  
22  /**
23   * Ensures that value will never be outside the bounds. Bounds will never be
24   * adjusted, only the value will be trimmed to minimum and maximum. If values
25   * are changed, value will be adjusted accordingly.
26   *
27   * @author <a href="mailto:ales.pucelj@cosylab.com">Ales Pucelj</a>
28   * @version $id$
29   */
30  public final class TrimValuePolicy extends RangedValuePolicy
31  {
32  	
33  	/**
34  	 * Trims value to bounds.
35  	 */
36  	public static RangedValue trim(RangedValue params)
37  	{
38  		double value = params.getValue();
39  		value = Math.max(value, params.getMinimum());
40  		value = Math.min(value, params.getMaximum());
41  		return new RangedValue(params.getMinimum(), params.getMaximum(), value);
42  	}
43  
44  	/**
45  	 * Trims value to bounds.
46  	 *
47  	 * @see com.cosylab.gui.components.range.RangedValuePolicy#validate(RangedValueHolder)
48  	 */
49  	public RangedValue validate(RangedValue params)
50  	{
51  		params = trim(params);
52  		return validatePeerPolicy(params);
53  	}
54  }
55  
56  /* __oOo__ */