mcs/class/Managed.Windows.Forms/System.Windows.Forms/SelectionRangeConverter.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) 2005 Novell, Inc. (http://www.novell.com)
  21 //
  22 // Authors:
  23 //      Peter Bartok    (pbartok@novell.com)
  24 //
  25 //
  26
  27 // COMPLETE
  28
  29 using System.ComponentModel;
  30 using System.Globalization;
  31
  32 namespace System.Windows.Forms {
  33         public class SelectionRangeConverter : TypeConverter {
  34                 #region Public Constructors
  35                 public SelectionRangeConverter() {
  36                 }
  37                 #endregion      // Public Constructors
  38
  39                 #region Public Instance Methods
  40                 public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) {
  41                         if (sourceType == typeof(string)) {
  42                                 return true;
  43                         }
  44                         return false;
  45                 }
  46
  47                 public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
  48                         if (destinationType == typeof(string)) {
  49                                 return true;
  50                         }
  51                         return false;
  52                 }
  53
  54                 public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value) {
  55                         string[]        parts;
  56                         DateTime        start;
  57                         DateTime        end;
  58
  59                         if ((value == null) || !(value is String)) {
  60                                 return base.ConvertFrom (context, culture, value);
  61                         }
  62
  63                         if (culture == null) {
  64                                 culture = CultureInfo.CurrentCulture;
  65                         }
  66
  67                         parts = ((string)value).Split(culture.TextInfo.ListSeparator.ToCharArray());
  68
  69                         start = (DateTime)TypeDescriptor.GetConverter(typeof(DateTime)).ConvertFromString(context, culture, parts[0]);
  70                         end = (DateTime)TypeDescriptor.GetConverter(typeof(DateTime)).ConvertFromString(context, culture, parts[1]);
  71
  72                         return new SelectionRange(start, end);
  73                 }
  74
  75                 public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType) {
  76                         SelectionRange  s;
  77
  78                         if ((value == null) || !(value is SelectionRange) || (destinationType != typeof(string))) {
  79                                 return base.ConvertTo (context, culture, value, destinationType);
  80                         }
  81
  82                         if (culture == null) {
  83                                 culture = CultureInfo.CurrentCulture;
  84                         }
  85
  86                         s = (SelectionRange)value;
  87
  88
  89                         return s.Start.ToShortDateString() + culture.TextInfo.ListSeparator + s.End.ToShortDateString();
  90                 }
  91
  92                 public override object CreateInstance(ITypeDescriptorContext context, System.Collections.IDictionary propertyValues) {
  93                         return new SelectionRange((DateTime)propertyValues["Start"], (DateTime)propertyValues["End"]);
  94                 }
  95
  96                 public override bool GetCreateInstanceSupported(ITypeDescriptorContext context) {
  97                         return true;
  98                 }
  99
 100                 public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) {
 101                         return TypeDescriptor.GetProperties(typeof(SelectionRange), attributes);
 102                 }
 103
 104                 public override bool GetPropertiesSupported(ITypeDescriptorContext context) {
 105                         return true;
 106                 }
 107                 #endregion      // Public Instance Methods
 108         }
 109 }