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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.
//
// Copyright (c) 2005 Novell, Inc.
//
// Authors:
// Jackson Harper (jackson@ximian.com)
using System;
using System.IO;
using System.Drawing;
using System.Drawing.Imaging;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Globalization;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Runtime.Serialization;
namespace System.Windows.Forms
{
public class CursorConverter : TypeConverter
{
public CursorConverter ()
{
}
public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
{
if (sourceType == typeof (byte []))
return true;
return base.CanConvertFrom (context, sourceType);
}
public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType)
{
if (destinationType == typeof (byte []) || destinationType == typeof (InstanceDescriptor))
return true;
return base.CanConvertTo (context, destinationType);
}
public override object ConvertFrom (ITypeDescriptorContext context,
CultureInfo culture, object value)
{
byte [] val = value as byte [];
if (val == null)
return base.ConvertFrom (context, culture, value);
using (MemoryStream s = new MemoryStream (val)) {
return new Cursor (s);
}
}
public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture,
object value, Type destinationType)
{
if (destinationType == null)
throw new ArgumentNullException ("destinationType");
if (value == null && destinationType == typeof (string))
return "(none)";
if ( !(value is Cursor))
throw new ArgumentException("object must be of class Cursor", "value");
if (destinationType == typeof (byte [])) {
Cursor c;
SerializationInfo si;
if (value == null) {
return new byte [0];
}
c = (Cursor)value;
si = new SerializationInfo(typeof(Cursor), new FormatterConverter());
((ISerializable)c).GetObjectData(si, new StreamingContext(StreamingContextStates.Remoting));
return (byte[])si.GetValue("CursorData", typeof(byte[]));
} else if (destinationType == typeof (InstanceDescriptor)) {
PropertyInfo[] properties = typeof (Cursors).GetProperties ();
foreach (PropertyInfo propInfo in properties) {
if (propInfo.GetValue (null, null) == value) {
return new InstanceDescriptor (propInfo, null);
}
}
}
return base.ConvertTo (context, culture, value, destinationType);
}
public override StandardValuesCollection GetStandardValues (ITypeDescriptorContext context)
{
PropertyInfo[] props = typeof (Cursors).GetProperties();
ArrayList vals = new ArrayList ();
for (int i = 0; i < props.Length; i++) {
vals.Add (props [i].GetValue (null, null));
}
return new StandardValuesCollection (vals);
}
public override bool GetStandardValuesSupported (ITypeDescriptorContext context)
{
return true;
}
}
}
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