mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Base/Core/Internal/PropertyEditing/FromExpression/Framework/Data/BoolToDoubleConverter.cs

   1 // -------------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation. All Rights Reserved.
   3 // -------------------------------------------------------------------
   4 //From \\authoring\Sparkle\Source\1.0.1083.0\Common\Source\Framework\Data
   5 namespace System.Activities.Presentation.Internal.PropertyEditing.FromExpression.Framework.Data
   6 {
   7     using System;
   8     using System.ComponentModel;
   9     using System.Globalization;
  10     using System.Reflection;
  11     using System.Windows;
  12     using System.Windows.Controls;
  13     using System.Windows.Data;
  14     using System.Diagnostics.CodeAnalysis;
  15     using System.Runtime;
  16
  17     // <summary>
  18     // Maps a bool to a FontWeight. True becomes Bold, and False is Normal.
  19     // </summary>
  20
  21     [SuppressMessage("Microsoft.Performance", "CA1812:AvoidUninstantiatedInternalClasses")]
  22     internal class BoolToDoubleConverter : IValueConverter
  23     {
  24         // Private Fields
  25
  26         private double trueValue = 0;
  27         private double falseValue = 0;
  28
  29         // Public Properties
  30
  31         [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
  32         public double TrueValue
  33         {
  34             get
  35             {
  36                 return this.trueValue;
  37             }
  38             set
  39             {
  40                 this.trueValue = value;
  41             }
  42         }
  43
  44         [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
  45         public double FalseValue
  46         {
  47             get
  48             {
  49                 return this.falseValue;
  50             }
  51             set
  52             {
  53                 this.falseValue = value;
  54             }
  55         }
  56
  57
  58         // IValueConverter Implementation
  59
  60         public object ConvertBack(object o, Type targetType, object parameter, CultureInfo culture)
  61         {
  62             Fx.Assert(false, "Never expecting the inverse transform to be called");
  63             return null;
  64         }
  65
  66         public object Convert(object o, Type targetType, object parameter, CultureInfo culture)
  67         {
  68             Fx.Assert(o is bool, "Ensure that transformed element is a boolean");
  69
  70             if ((bool)o)
  71             {
  72                 return this.trueValue;
  73             }
  74             else
  75             {
  76                 return this.falseValue;
  77             }
  78         }
  79
  80     }
  81 }