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//
// Command.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2016 jp
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Xml.Serialization;
using System.ComponentModel;
namespace Crow
{
public class Command : IValueChange
{
#region IValueChange implementation
public event EventHandler<ValueChangeEventArgs> ValueChanged;
public virtual void NotifyValueChanged(string MemberName, object _value)
{
ValueChanged.Raise(this, new ValueChangeEventArgs(MemberName, _value));
}
#endregion
#region CTOR
public Command (Action _executeAction)
{
execute = _executeAction;
}
#endregion
Action execute;
string caption;
Picture icon;
bool canExecute = true;
#region Public properties
[XmlAttributeAttribute][DefaultValue(true)]
public virtual bool CanExecute {
get { return canExecute; }
set {
if (canExecute == value)
return;
canExecute = value;
NotifyValueChanged ("CanExecute", canExecute);
}
}
[XmlAttributeAttribute][DefaultValue("Unamed Command")]
public virtual string Caption {
get { return caption; }
set {
if (caption == value)
return;
caption = value;
NotifyValueChanged ("Caption", caption);
}
}
[XmlAttributeAttribute]
public Picture Icon {
get { return icon; }
set {
if (icon == value)
return;
icon = value;
NotifyValueChanged ("Icon", icon);
}
}
#endregion
public void Execute(){
if (execute != null && CanExecute)
execute ();
}
internal void raiseAllValuesChanged(){
NotifyValueChanged ("CanExecute", canExecute);
NotifyValueChanged ("Icon", icon);
NotifyValueChanged ("Caption", caption);
}
}
}
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