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source: branches/WebJobManager/HeuristicLab.Data/3.3/PercentValue.cs @ 14484

Last change on this file since 14484 was 13827, checked in by jlodewyc, 9 years ago

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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Data {
28  [Item("PercentValue", "Represents a double value in percent.")]
29  [StorableClass]
30  public class PercentValue : DoubleValue {
31    [Storable(DefaultValue = false)]
32    private bool restrictToUnitInterval = false;
33    public bool RestrictToUnitInterval {
34      get { return restrictToUnitInterval; }
35    }
36
37    public override double Value {
38      get { return base.Value; }
39      set {
40        if (restrictToUnitInterval && (value < 0 || value > 1))
41          throw new ArgumentException("Value must lie in the interval [0,1].");
42        base.Value = value;
43      }
44    }
45
46    [StorableConstructor]
47    protected PercentValue(bool deserializing) : base(deserializing) { }
48    protected PercentValue(PercentValue original, Cloner cloner)
49      : base(original, cloner) {
50      restrictToUnitInterval = original.restrictToUnitInterval;
51    }
52    public PercentValue() : base() { }
53    public PercentValue(double value) : base(value) { }
54
55        public static PercentValue Parse(string val)
56        {
57            return new PercentValue((Double.Parse(val) / 100));
58        }
59
60        public PercentValue(double value, bool restrictToUnitInterval)
61      : base() {
62      this.restrictToUnitInterval = restrictToUnitInterval;
63      if (restrictToUnitInterval && (value < 0 || value > 1))
64        throw new ArgumentException("Value must lie in the interval [0,1].");
65      this.value = value;
66    }
67
68    public override IDeepCloneable Clone(Cloner cloner) {
69      return new PercentValue(this, cloner);
70    }
71
72    public override string ToString() {
73      return Value.ToString("#0.#################### %");  // percent format
74    }
75
76    protected override bool Validate(string value, out string errorMessage) {
77      value = value.Replace("%", " ");
78      bool valid = base.Validate(value, out errorMessage);
79      if (!restrictToUnitInterval || !valid) return valid;
80
81      double val = double.Parse(value);
82      if (val < 0 || val > 1) {
83        errorMessage = "Value must lie in the interval [0,1].";
84        return false;
85      }
86      return true;
87    }
88
89    protected override string GetValue() {
90      return Value.ToString("#0.#################### %");  // percent format
91    }
92    protected override bool SetValue(string value) {
93      bool percent = value.Contains("%");
94      value = value.Replace("%", " ");
95      double val;
96      if (double.TryParse(value, out val)) {
97        if (percent) {
98          if (!(val).IsAlmost(Value * 100.0))
99            Value = val == 0 ? 0 : val / 100.0;
100        } else {
101          Value = val;
102        }
103        return true;
104      } else {
105        return false;
106      }
107    }
108  }
109}
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