/// <summary>
/// Executes a command and adds it to the undo buffer.
/// </summary>
/// <param name="command">The command to execute.</param>
public void Execute(INefsEditCommand command)
{
command.Do();
// Clear any redo commands (can only undo after executing a new command)
if (this.NextCommandIndex < this.commands.Count)
{
this.commands.RemoveRange(this.NextCommandIndex, this.commands.Count - this.NextCommandIndex);
}
// Add command
this.commands.Add(command);
// Update command index
this.PreviousCommandIndex = this.NextCommandIndex;
this.NextCommandIndex = this.commands.Count;
// Notifiy command executed
var eventArgs = new NefsEditCommandEventArgs(NefsEditCommandEventKind.New, command);
this.CommandExecuted?.Invoke(this, eventArgs);
}
/// <inheritdoc/>
public void Execute(INefsEditCommand command)
{
this.UndoBuffer.Execute(command);
}
/// <summary>
/// Initializes a new instance of the <see cref="NefsEditCommandEventArgs"/> class.
/// </summary>
/// <param name="kind">The kind of event that was executed.</param>
/// <param name="command">The command that was executed.</param>
public NefsEditCommandEventArgs(NefsEditCommandEventKind kind, INefsEditCommand command)
{
this.Kind = kind;
this.Command = command ?? throw new ArgumentNullException(nameof(command));
}
