mcs/class/Managed.Windows.Forms/System.Windows.Forms/LinkConverter.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.
  21 //
  22 // Authors:
  23 //   Jonathan Pobst  monkey@jpobst.com
  24 //
  25
  26 #if NET_2_0
  27 using System.ComponentModel;
  28 using System.Globalization;
  29 using System.Runtime.InteropServices;
  30
  31 namespace System.Windows.Forms
  32 {
  33         public class LinkConverter : TypeConverter
  34         {
  35                 #region Constructors
  36                 public LinkConverter () { }
  37                 #endregion Constructors
  38
  39                 #region Public Methods
  40                 public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
  41                 {
  42                         if (sourceType == typeof (string))
  43                                 return true;
  44
  45                         return false;
  46                 }
  47
  48                 public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType)
  49                 {
  50                         if (destinationType == typeof (string))
  51                                 return true;
  52
  53                         return base.CanConvertTo (context, destinationType);
  54                 }
  55
  56                 public override object ConvertFrom (ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
  57                 {
  58                         if ((value == null) || !(value is String))
  59                                 return base.ConvertFrom (context, culture, value);
  60
  61                         if (culture == null)
  62                                 culture = CultureInfo.CurrentCulture;
  63
  64                         if (((string)value).Length == 0)
  65                                 return null;
  66
  67                         string[] parts = ((string)value).Split (culture.TextInfo.ListSeparator.ToCharArray ());
  68
  69                         return new LinkLabel.Link (int.Parse (parts[0].Trim ()), int.Parse (parts[1].Trim ()));
  70                 }
  71
  72                 public override object ConvertTo (ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
  73                 {
  74                         if ((value == null) || !(value is LinkLabel.Link) || (destinationType != typeof (string)))
  75                                 return base.ConvertTo (context, culture, value, destinationType);
  76
  77                         if (culture == null)
  78                                 culture = CultureInfo.CurrentCulture;
  79
  80                         LinkLabel.Link l = (LinkLabel.Link)value;
  81
  82                         return string.Format ("{0}{2} {1}", l.Start, l.Length, culture.TextInfo.ListSeparator);
  83                 }
  84                 #endregion Public Methods
  85         }
  86 }
  87 #endif