90 lines
2.9 KiB
C#
90 lines
2.9 KiB
C#
|
// 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.
|
||
|
|
//
|
||
|
|
// Copyright (c) 2004 Novell, Inc.
|
||
|
|
//
|
||
|
|
// Authors:
|
||
|
|
// Jackson Harper (jackson@ximian.com)
|
||
|
|
|
||
|
|
|
||
|
|
using System;
|
||
|
|
using System.Drawing;
|
||
|
|
using System.Collections;
|
||
|
|
using System.ComponentModel;
|
||
|
|
|
||
|
|
|
||
|
|
namespace System.Windows.Forms {
|
||
|
|
|
||
|
|
public class TreeViewImageIndexConverter : ImageIndexConverter {
|
||
|
|
|
||
|
|
public TreeViewImageIndexConverter ()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
#region Protected Properties
|
||
|
|
protected override bool IncludeNoneAsStandardValue {
|
||
|
|
get { return false; }
|
||
|
|
}
|
||
|
|
#endregion
|
||
|
|
|
||
|
|
#region Public Methods
|
||
|
|
public override object ConvertFrom (System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
|
||
|
|
{
|
||
|
|
string indexStr;
|
||
|
|
|
||
|
|
if (value != null && value is string) {
|
||
|
|
indexStr = (string)value;
|
||
|
|
|
||
|
|
if (indexStr.Equals ("(default)", StringComparison.InvariantCultureIgnoreCase))
|
||
|
|
return -1;
|
||
|
|
else if (indexStr.Equals ("(none)", StringComparison.InvariantCultureIgnoreCase))
|
||
|
|
return -2;
|
||
|
|
|
||
|
|
return Int32.Parse (indexStr);
|
||
|
|
} else
|
||
|
|
return base.ConvertFrom (context, culture, value);
|
||
|
|
}
|
||
|
|
|
||
|
|
public override object ConvertTo (System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
|
||
|
|
{
|
||
|
|
if (destinationType == typeof (string)) {
|
||
|
|
if (value == null)
|
||
|
|
return string.Empty;
|
||
|
|
else if (value is int && (int)value == -1)
|
||
|
|
return "(default)";
|
||
|
|
else if (value is int && (int)value == -2)
|
||
|
|
return "(none)";
|
||
|
|
else if (value is string && ((string)value).Length == 0)
|
||
|
|
return string.Empty;
|
||
|
|
else
|
||
|
|
return value.ToString ();
|
||
|
|
} else
|
||
|
|
return base.ConvertTo (context, culture, value, destinationType);
|
||
|
|
}
|
||
|
|
|
||
|
|
public override StandardValuesCollection GetStandardValues (System.ComponentModel.ITypeDescriptorContext context)
|
||
|
|
{
|
||
|
|
int[] stdVal = new int[] { -1, -2 };
|
||
|
|
return new TypeConverter.StandardValuesCollection (stdVal);
|
||
|
|
}
|
||
|
|
#endregion
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|