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//
// 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.
//
/**
* Namespace: System.Web.UI.WebControls
* Class: FontUnitConverter
*
* Author: Gaurav Vaish, Gonzalo Paniagua Javier
* Maintainer: gvaish@iitk.ac.in
* Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>, <gonzalo@ximian.com>
* Implementation: yes
* Status: 95%
*
* (C) Gaurav Vaish (2002)
* (c) 2002 Ximian, Inc. (http://www.ximian.com)
*/
using System;
using System.Globalization;
using System.ComponentModel;
using System.Web;
using System.Web.UI;
namespace System.Web.UI.WebControls
{
public class FontUnitConverter : TypeConverter
{
static StandardValuesCollection valuesCollection;
static string creatingValues = "creating value collection";
public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
{
if(sourceType == typeof(string))
return true;
return base.CanConvertFrom(context, sourceType);
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if(value == null)
return null;
if(value is string)
{
string val = ((string)value).Trim();
if(val.Length == 0)
{
return FontUnit.Empty;
}
return FontUnit.Parse(val, culture);
}
return base.ConvertFrom(context, culture, value);
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if(value != null && value is FontUnit)
{
FontUnit val = (FontUnit)value;
if(val.Type == FontSize.NotSet)
{
return String.Empty;
}
return val.ToString(culture);
}
return base.ConvertTo(context, culture, value, destinationType);
}
public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
{
if (valuesCollection != null)
return valuesCollection;
lock (creatingValues) {
if (valuesCollection != null)
return valuesCollection;
Array values = Enum.GetValues (typeof (FontUnit));
Array.Sort (values);
valuesCollection = new StandardValuesCollection (values);
}
return valuesCollection;
}
public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)
{
return false;
}
public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
{
return true;
}
}
}
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