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//
// System.ComponentModel.TimeSpanConverter
//
// Authors:
// Martin Willemoes Hansen (mwh@sysrq.dk)
// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
//
// (C) 2003 Martin Willemoes Hansen
// (C) 2003 Andreas Nahr
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Globalization;
using System.Reflection;
using System.ComponentModel.Design.Serialization;
namespace System.ComponentModel
{
public class TimeSpanConverter : TypeConverter
{
public TimeSpanConverter()
{
}
public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
{
if (sourceType == typeof (string))
return true;
return base.CanConvertFrom (context, sourceType);
}
public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType)
{
if (destinationType == typeof (string))
return true;
if (destinationType == typeof (InstanceDescriptor))
return true;
return base.CanConvertTo (context, destinationType);
}
public override object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value.GetType() == typeof (string)) {
string TimeSpanString = (string) value;
try {
// LAMESPEC Doc says TimeSpan uses Ticks, but MS uses time format:
// [ws][-][d.]hh:mm:ss[.ff][ws]
return TimeSpan.Parse (TimeSpanString);
} catch {
throw new FormatException (TimeSpanString + "is not valid for a TimeSpan.");
}
}
return base.ConvertFrom (context, culture, value);
}
public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture, object value,
Type destinationType)
{
if (destinationType == typeof (string) && value != null && value.GetType() == typeof (TimeSpan)) {
// LAMESPEC Doc says TimeSpan uses Ticks, but MS uses time format
// [ws][-][d.]hh:mm:ss[.ff][ws]
return ((TimeSpan) value).ToString();
}
if (destinationType == typeof (InstanceDescriptor) && value is TimeSpan) {
TimeSpan cval = (TimeSpan) value;
ConstructorInfo ctor = typeof(TimeSpan).GetConstructor (new Type[] {typeof(long)});
return new InstanceDescriptor (ctor, new object[] {cval.Ticks});
}
return base.ConvertTo (context, culture, value, destinationType);
}
}
}
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