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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) 2007 Novell, Inc.
//
using System.ComponentModel;
using System.Collections;
using System.Reflection;
using System.Globalization;
using System.ComponentModel.Design.Serialization; // e.g. InstanceDescriptor
namespace System.Windows.Forms
{
public class PaddingConverter : TypeConverter
{
public PaddingConverter ()
{
}
#region Public Instance Methods
public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
{
if (sourceType == typeof (string))
return true;
return false;
}
public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType)
{
if (destinationType == typeof (string))
return true;
else if (destinationType == typeof(InstanceDescriptor))
return true;
return false;
}
public override object ConvertFrom (ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
if ((value == null) || !(value is String))
return base.ConvertFrom (context, culture, value);
if (culture == null)
culture = CultureInfo.CurrentCulture;
string[] parts = ((string)value).Split (culture.TextInfo.ListSeparator.ToCharArray ());
return new Padding (int.Parse (parts[0].Trim ()), int.Parse (parts[1].Trim ()), int.Parse (parts[2].Trim ()), int.Parse (parts[3].Trim ()));
}
public override object ConvertTo (ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
{
if (value is Padding) {
Padding p = (Padding)value;
if (destinationType == typeof (string)) {
if (culture == null)
culture = CultureInfo.CurrentCulture;
return string.Format ("{0}{4} {1}{4} {2}{4} {3}", p.Left, p.Top, p.Right, p.Bottom, culture.TextInfo.ListSeparator);
} else if (destinationType == typeof (InstanceDescriptor)) {
Type[] types;
Object[] values;
if (p.All != -1) {
types = new Type[] { typeof(int) };
values = new Object[] { p.All };
} else {
types = new Type[] { typeof(int), typeof(int), typeof(int), typeof(int) };
values = new Object[] { p.Left, p.Top, p.Right, p.Bottom };
}
ConstructorInfo ci = typeof(Padding).GetConstructor (types);
return new InstanceDescriptor (ci, values);
}
}
return base.ConvertTo (context, culture, value, destinationType);
}
public override object CreateInstance (ITypeDescriptorContext context, IDictionary propertyValues)
{
if (propertyValues == null)
throw new ArgumentNullException ("propertyValues");
if (context == null)
throw new ArgumentNullException ("context");
Padding old = (Padding)context.PropertyDescriptor.GetValue (context.Instance);
if (old.All == (int)propertyValues["All"])
return new Padding ((int)propertyValues["Left"], (int)propertyValues["Top"], (int)propertyValues["Right"], (int)propertyValues["Bottom"]);
else
return new Padding ((int)propertyValues["All"]);
}
public override bool GetCreateInstanceSupported (ITypeDescriptorContext context)
{
return true;
}
public override PropertyDescriptorCollection GetProperties (ITypeDescriptorContext context, object value, Attribute[] attributes)
{
return TypeDescriptor.GetProperties (typeof (Padding), attributes);
}
public override bool GetPropertiesSupported (ITypeDescriptorContext context)
{
return true;
}
#endregion
}
}
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