// Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0, as
// published by the Free Software Foundation.
//
// This program is also distributed with certain software (including
// but not limited to OpenSSL) that is licensed under separate terms,
// as designated in a particular file or component or in included license
// documentation.  The authors of MySQL hereby grant you an
// additional permission to link the program and your derivative works
// with the separately licensed software that they have included with
// MySQL.
//
// Without limiting anything contained in the foregoing, this file,
// which is part of MySQL for Visual Studio, is also subject to the
// Universal FOSS Exception, version 1.0, a copy of which can be found at
// http://oss.oracle.com/licenses/universal-foss-exception.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License, version 2.0, for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA

using System;
using System.ComponentModel;

namespace MySql.Data.VisualStudio.Editors
{
  public class YesNoTypeConverter : TypeConverter
  {
    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;
      return base.CanConvertTo(context, destinationType);
    }

    public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
    {
      if (value.GetType() == typeof(string))
      {
        if (((string)value).ToLower() == "yes")
          return true;
        if (((string)value).ToLower() == "no")
          return false;
        throw new Exception("Values must be \"Yes\" or \"No\"");
      }

      return base.ConvertFrom(context, culture, value);
    }

    public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
    {
      if (destinationType == typeof(string))
      {
        return (((bool)value) ? "Yes" : "No");
      }

      return base.ConvertTo(context, culture, value, destinationType);
    }

    public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
    {
      return true;
    }

    public override System.ComponentModel.TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
    {
      bool[] bools = new bool[] { true, false };
      System.ComponentModel.TypeConverter.StandardValuesCollection svc = new System.ComponentModel.TypeConverter.StandardValuesCollection(bools);
      return svc;
    }
  }
}
