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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) 2004-2005 Novell, Inc.
//
// Authors:
//
// Dennis Hayes, dennish@raytek.com
// Andreas Nahr, ClassDevelopment@A-SoftTech.com
// Jordi Mas i Hernandez, jordi@ximian.com
//
// COMPLETE
using System.ComponentModel;
using System.Globalization;
namespace System.Windows.Forms
{
[Serializable]
[TypeConverter(typeof(LinkArea.LinkAreaConverter))]
public struct LinkArea
{
#region LinkAreaConverter Class
public class LinkAreaConverter : TypeConverter {
public LinkAreaConverter() {
}
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) {
string[] parts;
int start;
int length;
if ((value == null) || !(value is String)) {
return base.ConvertFrom (context, culture, value);
}
if (culture == null) {
culture = CultureInfo.CurrentCulture;
}
parts = ((string)value).Split(culture.TextInfo.ListSeparator.ToCharArray());
start = int.Parse(parts[0].Trim());
length = int.Parse(parts[1].Trim());
return new LinkArea(start, length);
}
public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType) {
LinkArea l;
if ((value == null) || !(value is LinkArea) || (destinationType != typeof(string))) {
return base.ConvertTo (context, culture, value, destinationType);
}
if (culture == null) {
culture = CultureInfo.CurrentCulture;
}
l = (LinkArea)value;
return l.Start.ToString() + culture.TextInfo.ListSeparator + l.Length.ToString();
}
public override object CreateInstance(ITypeDescriptorContext context, System.Collections.IDictionary propertyValues) {
return new LinkArea((int)propertyValues["Start"], (int)propertyValues["Length"]);
}
public override bool GetCreateInstanceSupported(ITypeDescriptorContext context) {
return true;
}
public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) {
return TypeDescriptor.GetProperties(typeof(LinkArea), attributes);
}
public override bool GetPropertiesSupported(ITypeDescriptorContext context) {
return true;
}
}
#endregion // LinkAreaConverter Class
private int start;
private int length;
public LinkArea (int start, int length)
{
this.start = start;
this.length = length;
}
#region Public Properties
public int Start {
get { return start; }
set { start = value; }
}
public int Length {
get { return length; }
set { length = value; }
}
[Browsable (false)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public bool IsEmpty {
get {
if (start == 0 && length == 0)
return true;
else
return false;
}
}
#endregion //Public Properties
#region Methods
public override bool Equals (object o)
{
if (!(o is LinkArea))
return false;
LinkArea comp = (LinkArea) o;
return (comp.Start == start && comp.Length == length);
}
public override int GetHashCode ()
{
return start << 4 | length;
}
#endregion //Methods
}
}
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