class/WindowsBase/System.Windows/RectConverter.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2007 Novell, Inc. (http://www.novell.com)
  21 //
  22 // Authors:
  23 //      Chris Toshok <toshok@novell.com>
  24 //
  25
  26 using System;
  27 using System.ComponentModel;
  28 using System.Globalization;
  29
  30 namespace System.Windows {
  31
  32         public sealed class RectConverter : TypeConverter
  33         {
  34                 public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
  35                 {
  36                         return sourceType == typeof (string);
  37                 }
  38
  39                 public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType)
  40                 {
  41                         return destinationType == typeof (string);
  42                 }
  43
  44                 public override object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, object value)
  45                 {
  46                         if (!(value is string))
  47                                 throw new NotSupportedException ("RectConverter only supports converting from strings");
  48
  49                         return Rect.Parse ((string)value);
  50                 }
  51
  52                 public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
  53                 {
  54                         return ((Rect)value).ToString (culture);
  55                 }
  56         }
  57 }