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//
// EnumerationEditorCell.cs
//
// Author:
// Lluis Sanchez Gual
//
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// 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.
//
using System;
using System.Collections;
using System.ComponentModel;
using System.Reflection;
namespace MonoDevelop.Components.PropertyGrid.PropertyEditors
{
[PropertyEditorType(typeof(System.Enum))]
public class EnumerationEditorCell: PropertyEditorCell
{
protected override string GetValueText ()
{
if (Value == null)
return "";
string val = Value.ToString ();
// If the enum value has a Description attribute, return the description
foreach (FieldInfo f in Property.PropertyType.GetFields ()) {
if (f.Name == val) {
DescriptionAttribute att = (DescriptionAttribute) Attribute.GetCustomAttribute (f, typeof(DescriptionAttribute));
if (att != null)
return att.Description;
else
return val;
}
}
return val;
}
protected override IPropertyEditor CreateEditor (Gdk.Rectangle cell_area, Gtk.StateType state)
{
return new EnumerationEditor ();
}
}
public class EnumerationEditor : Gtk.HBox, IPropertyEditor {
Gtk.EventBox ebox;
Gtk.ComboBoxEntry combo;
Array values;
public EnumerationEditor () : base (false, 0)
{
}
public void Initialize (EditSession session)
{
PropertyDescriptor prop = session.Property;
if (!prop.PropertyType.IsEnum)
throw new ApplicationException ("Enumeration editor does not support editing values of type " + prop.PropertyType);
values = System.Enum.GetValues (prop.PropertyType);
Hashtable names = new Hashtable ();
foreach (FieldInfo f in prop.PropertyType.GetFields ()) {
DescriptionAttribute att = (DescriptionAttribute) Attribute.GetCustomAttribute (f, typeof(DescriptionAttribute));
if (att != null)
names [f.Name] = att.Description;
else
names [f.Name] = f.Name;
}
ebox = new Gtk.EventBox ();
ebox.Show ();
PackStart (ebox, true, true, 0);
combo = Gtk.ComboBoxEntry.NewText ();
combo.Changed += combo_Changed;
combo.Entry.IsEditable = false;
combo.Entry.CanFocus = false;
combo.Entry.HasFrame = false;
combo.Entry.HeightRequest = combo.SizeRequest ().Height;
combo.Show ();
ebox.Add (combo);
foreach (object value in values) {
string str = prop.Converter.ConvertToString (value);
if (names.Contains (str))
str = (string) names [str];
combo.AppendText (str);
}
}
protected override void OnDestroyed ()
{
base.OnDestroyed ();
((IDisposable)this).Dispose ();
}
void IDisposable.Dispose ()
{
}
public object Value {
get {
return values.GetValue (combo.Active);
}
set {
int i = Array.IndexOf (values, value);
if (i != -1)
combo.Active = i;
}
}
public event EventHandler ValueChanged;
void combo_Changed (object o, EventArgs args)
{
if (ValueChanged != null)
ValueChanged (this, EventArgs.Empty);
ebox.TooltipText = Value != null ? Value.ToString () : null;
}
}
}
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