1 // 2 // Copyright (C) 2010 Novell Inc. http://novell.com 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining 5 // a copy of this software and associated documentation files (the 6 // "Software"), to deal in the Software without restriction, including 7 // without limitation the rights to use, copy, modify, merge, publish, 8 // distribute, sublicense, and/or sell copies of the Software, and to 9 // permit persons to whom the Software is furnished to do so, subject to 10 // the following conditions: 11 // 12 // The above copyright notice and this permission notice shall be 13 // included in all copies or substantial portions of the Software. 14 // 15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22 // 23 using System; 24 using System.Collections.Generic; 25 using System.ComponentModel; 26 using System.Globalization; 27 using System.Windows.Markup; 28 using System.Xaml; 29 30 namespace System.Xaml.Schema 31 { 32 public class XamlTypeTypeConverter : TypeConverter 33 { CanConvertFrom(ITypeDescriptorContext context, Type sourceType)34 public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType) 35 { 36 return sourceType == typeof (string); 37 } 38 CanConvertTo(ITypeDescriptorContext context, Type destinationType)39 public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType) 40 { 41 return destinationType == typeof (string); 42 } 43 ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)44 public override Object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, Object value) 45 { 46 throw new NotSupportedException (String.Format ("Conversion from type {0} is not supported", value != null ? value.GetType () : null)); 47 } 48 ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)49 public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) 50 { 51 if (!CanConvertTo (context, destinationType)) 52 throw new NotSupportedException (String.Format ("Conversion to type {0} is not supported", destinationType)); 53 54 var vctx = (IValueSerializerContext) context; 55 var lookup = vctx != null ? (INamespacePrefixLookup) vctx.GetService (typeof (INamespacePrefixLookup)) : null; 56 var xt = value as XamlType; 57 if (xt != null && destinationType == typeof (string)) { 58 if (lookup != null) 59 return new XamlTypeName (xt).ToString (lookup); 60 else 61 return xt.UnderlyingType != null ? xt.UnderlyingType.ToString () : xt.ToString (); 62 } 63 else 64 return base.ConvertTo (context, culture, value, destinationType); // it seems it still handles not-supported types (such as int). 65 } 66 } 67 } 68